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chromium / chromium / src.git / e566352ced9a0c006dcdffa77d32871bccb75612 / . / content / browser / web_contents / web_contents_impl.cc
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/web_contents/web_contents_impl.h"
#include <stddef.h>
#include <algorithm>
#include <cmath>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "base/allocator/partition_alloc_features.h"
#include "base/allocator/partition_allocator/starscan/pcscan.h"
#include "base/bind.h"
#include "base/check_op.h"
#include "base/command_line.h"
#include "base/containers/contains.h"
#include "base/containers/cxx20_erase.h"
#include "base/containers/flat_set.h"
#include "base/feature_list.h"
#include "base/files/file_path.h"
#include "base/lazy_instance.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/histogram_functions.h"
#include "base/metrics/histogram_macros.h"
#include "base/metrics/user_metrics.h"
#include "base/no_destructor.h"
#include "base/observer_list.h"
#include "base/process/process.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/system/sys_info.h"
#include "base/task/single_thread_task_runner.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/time.h"
#include "base/trace_event/optional_trace_event.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "components/download/public/common/download_stats.h"
#include "components/power_scheduler/power_mode.h"
#include "components/power_scheduler/power_mode_arbiter.h"
#include "components/power_scheduler/power_mode_voter.h"
#include "components/url_formatter/url_formatter.h"
#include "content/browser/accessibility/browser_accessibility.h"
#include "content/browser/accessibility/browser_accessibility_state_impl.h"
#include "content/browser/attribution_reporting/attribution_host.h"
#include "content/browser/bad_message.h"
#include "content/browser/browser_main_loop.h"
#include "content/browser/browser_plugin/browser_plugin_embedder.h"
#include "content/browser/browser_plugin/browser_plugin_guest.h"
#include "content/browser/child_process_security_policy_impl.h"
#include "content/browser/devtools/protocol/page_handler.h"
#include "content/browser/devtools/render_frame_devtools_agent_host.h"
#include "content/browser/display_cutout/display_cutout_host_impl.h"
#include "content/browser/dom_storage/dom_storage_context_wrapper.h"
#include "content/browser/dom_storage/session_storage_namespace_impl.h"
#include "content/browser/download/mhtml_generation_manager.h"
#include "content/browser/download/save_package.h"
#include "content/browser/fenced_frame/fenced_frame.h"
#include "content/browser/find_request_manager.h"
#include "content/browser/gpu/gpu_data_manager_impl.h"
#include "content/browser/host_zoom_map_impl.h"
#include "content/browser/media/audio_stream_broker.h"
#include "content/browser/media/audio_stream_monitor.h"
#include "content/browser/media/media_web_contents_observer.h"
#include "content/browser/permissions/permission_controller_impl.h"
#include "content/browser/permissions/permission_util.h"
#include "content/browser/portal/portal.h"
#include "content/browser/prerender/prerender_host_registry.h"
#include "content/browser/renderer_host/agent_scheduling_group_host.h"
#include "content/browser/renderer_host/cross_process_frame_connector.h"
#include "content/browser/renderer_host/frame_token_message_queue.h"
#include "content/browser/renderer_host/frame_tree_node.h"
#include "content/browser/renderer_host/navigation_entry_impl.h"
#include "content/browser/renderer_host/navigation_request.h"
#include "content/browser/renderer_host/page_impl.h"
#include "content/browser/renderer_host/render_frame_host_impl.h"
#include "content/browser/renderer_host/render_frame_proxy_host.h"
#include "content/browser/renderer_host/render_view_host_delegate_view.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_input_event_router.h"
#include "content/browser/renderer_host/render_widget_host_view_base.h"
#include "content/browser/renderer_host/render_widget_host_view_child_frame.h"
#include "content/browser/renderer_host/text_input_manager.h"
#include "content/browser/renderer_host/visible_time_request_trigger.h"
#include "content/browser/screen_enumeration/screen_change_monitor.h"
#include "content/browser/screen_orientation/screen_orientation_provider.h"
#include "content/browser/site_instance_impl.h"
#include "content/browser/starscan_load_observer.h"
#include "content/browser/wake_lock/wake_lock_context_host.h"
#include "content/browser/web_contents/java_script_dialog_commit_deferring_condition.h"
#include "content/browser/web_contents/web_contents_view.h"
#include "content/browser/web_contents/web_contents_view_child_frame.h"
#include "content/browser/web_package/save_as_web_bundle_job.h"
#include "content/browser/webui/web_ui_controller_factory_registry.h"
#include "content/browser/webui/web_ui_impl.h"
#include "content/browser/xr/service/xr_runtime_manager_impl.h"
#include "content/common/content_switches_internal.h"
#include "content/common/partition_alloc_support.h"
#include "content/public/browser/ax_inspect_factory.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_plugin_guest_manager.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/color_chooser.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/context_menu_params.h"
#include "content/public/browser/device_service.h"
#include "content/public/browser/disallow_activation_reason.h"
#include "content/public/browser/download_manager.h"
#include "content/public/browser/file_select_listener.h"
#include "content/public/browser/focused_node_details.h"
#include "content/public/browser/frame_type.h"
#include "content/public/browser/global_routing_id.h"
#include "content/public/browser/invalidate_type.h"
#include "content/public/browser/javascript_dialog_manager.h"
#include "content/public/browser/keyboard_event_processing_result.h"
#include "content/public/browser/load_notification_details.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_widget_host_iterator.h"
#include "content/public/browser/render_widget_host_observer.h"
#include "content/public/browser/restore_type.h"
#include "content/public/browser/site_isolation_policy.h"
#include "content/public/browser/ssl_status.h"
#include "content/public/browser/storage_partition.h"
#include "content/public/browser/web_contents_delegate.h"
#include "content/public/browser/web_contents_view_delegate.h"
#include "content/public/browser/web_ui_controller.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/referrer_type_converters.h"
#include "content/public/common/url_constants.h"
#include "media/base/media_switches.h"
#include "media/base/user_input_monitor.h"
#include "net/base/url_util.h"
#include "net/http/http_util.h"
#include "net/traffic_annotation/network_traffic_annotation.h"
#include "ppapi/buildflags/buildflags.h"
#include "services/device/public/mojom/wake_lock.mojom.h"
#include "services/network/public/cpp/web_sandbox_flags.h"
#include "services/network/public/mojom/network_context.mojom.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
#include "third_party/blink/public/common/custom_handlers/protocol_handler_utils.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/common/loader/resource_type_util.h"
#include "third_party/blink/public/common/mime_util/mime_util.h"
#include "third_party/blink/public/common/page/page_zoom.h"
#include "third_party/blink/public/common/page_state/page_state.h"
#include "third_party/blink/public/common/permissions/permission_utils.h"
#include "third_party/blink/public/common/security/protocol_handler_security_level.h"
#include "third_party/blink/public/common/switches.h"
#include "third_party/blink/public/common/web_preferences/web_preferences.h"
#include "third_party/blink/public/mojom/frame/frame.mojom.h"
#include "third_party/blink/public/mojom/frame/fullscreen.mojom.h"
#include "third_party/blink/public/mojom/image_downloader/image_downloader.mojom.h"
#include "third_party/blink/public/mojom/mediastream/media_stream.mojom-shared.h"
#include "third_party/blink/public/mojom/mediastream/media_stream.mojom.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/accessibility/ax_tree_combiner.h"
#include "ui/base/pointer/pointer_device.h"
#include "ui/base/window_open_disposition.h"
#include "ui/color/color_provider_manager.h"
#include "ui/display/screen.h"
#include "ui/events/base_event_utils.h"
#include "ui/gfx/animation/animation.h"
#if BUILDFLAG(IS_WIN)
#include "base/threading/thread_restrictions.h"
#include "content/browser/renderer_host/dip_util.h"
#include "ui/gfx/geometry/dip_util.h"
#endif
#if BUILDFLAG(IS_ANDROID)
#include "content/browser/android/date_time_chooser_android.h"
#include "content/browser/android/java_interfaces_impl.h"
#include "content/browser/android/nfc_host.h"
#include "content/browser/web_contents/web_contents_android.h"
#include "services/device/public/mojom/nfc.mojom.h"
#include "services/service_manager/public/cpp/interface_provider.h"
#include "ui/android/view_android.h"
#include "ui/base/device_form_factor.h"
#endif // BUILDFLAG(IS_ANDROID)
#if BUILDFLAG(ENABLE_PLUGINS)
#include "content/browser/media/session/pepper_playback_observer.h"
#endif
#if defined(USE_AURA)
#include "ui/aura/window.h"
#endif
namespace content {
namespace {
// The window which we dobounce load info updates in.
constexpr auto kUpdateLoadStatesInterval = base::Milliseconds(250);
using LifecycleState = RenderFrameHost::LifecycleState;
using LifecycleStateImpl = RenderFrameHostImpl::LifecycleStateImpl;
base::LazyInstance<std::vector<
WebContentsImpl::FriendWrapper::CreatedCallback>>::DestructorAtExit
g_created_callbacks = LAZY_INSTANCE_INITIALIZER;
bool HasMatchingWidgetHost(FrameTree* tree, RenderWidgetHostImpl* host) {
// This method scans the frame tree rather than checking whether
// host->delegate() == this, which allows it to return false when the host
// for a frame that is pending or pending deletion.
if (!host)
return false;
for (FrameTreeNode* node : tree->NodesIncludingInnerTreeNodes()) {
// We might cross a WebContents boundary here, but it's fine as we are only
// comparing the RWHI with the given `host`, which is always guaranteed to
// belong to the same WebContents as `tree`.
if (node->current_frame_host()->GetRenderWidgetHost() == host) {
DCHECK_EQ(WebContentsImpl::FromFrameTreeNode(node),
WebContentsImpl::FromRenderWidgetHostImpl(host));
return true;
}
}
return false;
}
RenderFrameHostImpl* FindOpenerRFH(const WebContents::CreateParams& params) {
RenderFrameHostImpl* opener_rfh = nullptr;
if (params.opener_render_frame_id != MSG_ROUTING_NONE) {
opener_rfh = RenderFrameHostImpl::FromID(params.opener_render_process_id,
params.opener_render_frame_id);
}
return opener_rfh;
}
// Returns |true| if |type| is the kind of user input that should trigger the
// user interaction observers.
bool IsUserInteractionInputType(blink::WebInputEvent::Type type) {
// Ideally, this list would be based more off of
// https://whatwg.org/C/interaction.html#triggered-by-user-activation.
return type == blink::WebInputEvent::Type::kMouseDown ||
type == blink::WebInputEvent::Type::kGestureScrollBegin ||
type == blink::WebInputEvent::Type::kTouchStart ||
type == blink::WebInputEvent::Type::kRawKeyDown;
}
// Ensures that OnDialogClosed is only called once.
class CloseDialogCallbackWrapper
: public base::RefCountedThreadSafe<CloseDialogCallbackWrapper> {
public:
using CloseCallback =
base::OnceCallback<void(bool, bool, const std::u16string&)>;
explicit CloseDialogCallbackWrapper(CloseCallback callback)
: callback_(std::move(callback)) {}
void Run(bool dialog_was_suppressed,
bool success,
const std::u16string& user_input) {
if (callback_.is_null())
return;
std::move(callback_).Run(dialog_was_suppressed, success, user_input);
}
private:
friend class base::RefCountedThreadSafe<CloseDialogCallbackWrapper>;
~CloseDialogCallbackWrapper() = default;
CloseCallback callback_;
};
// This is a small helper class created while a JavaScript dialog is showing
// and destroyed when it's dismissed. Clients can register callbacks to receive
// a notification when the dialog is dismissed.
class JavaScriptDialogDismissNotifier {
public:
JavaScriptDialogDismissNotifier() = default;
JavaScriptDialogDismissNotifier(const JavaScriptDialogDismissNotifier&) =
delete;
JavaScriptDialogDismissNotifier& operator=(
const JavaScriptDialogDismissNotifier&) = delete;
~JavaScriptDialogDismissNotifier() {
for (auto& callback : callbacks_) {
std::move(callback).Run();
}
}
void NotifyOnDismiss(base::OnceClosure callback) {
callbacks_.push_back(std::move(callback));
}
private:
std::vector<base::OnceClosure> callbacks_;
};
bool FrameCompareDepth(RenderFrameHostImpl* a, RenderFrameHostImpl* b) {
return a->GetFrameDepth() < b->GetFrameDepth();
}
bool AreValidRegisterProtocolHandlerArguments(
const std::string& protocol,
const GURL& url,
const url::Origin& origin,
blink::ProtocolHandlerSecurityLevel security_level) {
ChildProcessSecurityPolicyImpl* policy =
ChildProcessSecurityPolicyImpl::GetInstance();
if (policy->IsPseudoScheme(protocol))
return false;
// Implementation of the protocol handler arguments normalization steps defined
// in the spec.
// https://html.spec.whatwg.org/multipage/system-state.html#normalize-protocol-handler-parameters
//
// Verify custom handler schemes for errors as described in steps 1 and 2
if (!blink::IsValidCustomHandlerScheme(protocol, security_level))
return false;
// TODO(jfernandez): Should we include syntax checks (step 3) as we do in the
// renderer process ?
// Verify custom handler URL security as described in steps 6 and 7
if (!blink::IsAllowedCustomHandlerURL(url, security_level))
return false;
url::Origin url_origin = url::Origin::Create(url);
if (url_origin.opaque())
return false;
if (security_level < blink::ProtocolHandlerSecurityLevel::kUntrustedOrigins &&
!origin.IsSameOriginWith(url))
return false;
return true;
}
void RecordMaxFrameCountUMA(size_t max_frame_count) {
UMA_HISTOGRAM_COUNTS_10000("Navigation.MainFrame.MaxFrameCount",
max_frame_count);
}
// Returns whether the condition provided applies to any inner contents.
// This check is not recursive (however, the predicate provided may itself
// recurse each contents' own inner contents).
//
// For example, if this is used to aggregate state from inner contents to outer
// contents, then that propagation will gather transitive descendants without
// need for this helper to do so. In fact, in such cases recursing on inner
// contents here would make that operation quadratic rather than linear.
template <typename Functor>
bool AnyInnerWebContents(WebContents* web_contents, const Functor& f) {
const auto& inner_contents = web_contents->GetInnerWebContents();
return std::any_of(inner_contents.begin(), inner_contents.end(), f);
}
// Returns the set of all WebContentses that are reachable from |web_contents|
// by applying some combination of
// WebContents::GetFirstWebContentsInLiveOriginalOpenerChain() and
// WebContents::GetOuterWebContents(). The |web_contents| parameter will be
// included in the returned set.
base::flat_set<WebContentsImpl*> GetAllOpeningWebContents(
WebContentsImpl* web_contents) {
base::flat_set<WebContentsImpl*> result;
base::flat_set<WebContentsImpl*> current;
current.insert(web_contents);
while (!current.empty()) {
WebContentsImpl* current_contents = *current.begin();
current.erase(current.begin());
auto insert_result = result.insert(current_contents);
if (insert_result.second) {
if (WebContents* opener_contents =
current_contents
->GetFirstWebContentsInLiveOriginalOpenerChain()) {
current.insert(static_cast<WebContentsImpl*>(opener_contents));
}
WebContentsImpl* outer_contents = current_contents->GetOuterWebContents();
if (outer_contents)
current.insert(outer_contents);
}
}
return result;
}
#if BUILDFLAG(IS_ANDROID)
float GetDeviceScaleAdjustment(int min_width) {
static const float kMinFSM = 1.05f;
static const int kWidthForMinFSM = 320;
static const float kMaxFSM = 1.3f;
static const int kWidthForMaxFSM = 800;
if (min_width <= kWidthForMinFSM)
return kMinFSM;
if (min_width >= kWidthForMaxFSM)
return kMaxFSM;
// The font scale multiplier varies linearly between kMinFSM and kMaxFSM.
float ratio = static_cast<float>(min_width - kWidthForMinFSM) /
(kWidthForMaxFSM - kWidthForMinFSM);
return ratio * (kMaxFSM - kMinFSM) + kMinFSM;
}
#endif
// Used to attach the "set of fullscreen contents" to a browser context. Storing
// sets of WebContents on their browser context is done for two reasons. One,
// related WebContentses must necessarily share a browser context, so this saves
// lookup time by restricting to one specific browser context. Two, separating
// by browser context is preemptive paranoia about keeping things separate.
class FullscreenContentsHolder : public base::SupportsUserData::Data {
public:
FullscreenContentsHolder() = default;
~FullscreenContentsHolder() override = default;
FullscreenContentsHolder(const FullscreenContentsHolder&) = delete;
FullscreenContentsHolder& operator=(const FullscreenContentsHolder&) = delete;
base::flat_set<WebContentsImpl*>* set() { return &set_; }
private:
base::flat_set<WebContentsImpl*> set_;
};
const char kFullscreenContentsSet[] = "fullscreen-contents";
base::flat_set<WebContentsImpl*>* FullscreenContentsSet(
BrowserContext* browser_context) {
auto* set_holder = static_cast<FullscreenContentsHolder*>(
browser_context->GetUserData(kFullscreenContentsSet));
if (!set_holder) {
auto new_holder = std::make_unique<FullscreenContentsHolder>();
set_holder = new_holder.get();
browser_context->SetUserData(kFullscreenContentsSet, std::move(new_holder));
}
return set_holder->set();
}
// Returns true if `host` has the Window Placement permission granted.
bool IsWindowPlacementGranted(RenderFrameHost* host) {
content::PermissionController* permission_controller =
host->GetBrowserContext()->GetPermissionController();
DCHECK(permission_controller);
return permission_controller->GetPermissionStatusForCurrentDocument(
blink::PermissionType::WINDOW_PLACEMENT, host) ==
blink::mojom::PermissionStatus::GRANTED;
}
// Adjust the requested |bounds| for opening or placing a window and return the
// id of the display where the window will be placed. The bounds may not extend
// outside a single screen's work area, and the |host| requires permission to
// specify bounds on a screen other than its current screen.
// TODO(crbug.com/897300): These adjustments are inaccurate for window.open(),
// which specifies the inner content size, and for window.moveTo, resizeTo, etc.
// calls on newly created windows, which may pass empty sizes or positions to
// indicate uninitialized placement information in the renderer. Constraints
// enforced later should resolve most inaccuracies, but this early enforcement
// is needed to ensure bounds indicate the appropriate display.
int64_t AdjustRequestedWindowBounds(gfx::Rect* bounds, RenderFrameHost* host) {
auto* screen = display::Screen::GetScreen();
auto display = screen->GetDisplayMatching(*bounds);
// Check, but do not prompt, for permission to place windows on other screens.
// Sites generally need permission to get such bounds in the first place.
// Also clamp offscreen bounds to the window's current screen.
if (!bounds->Intersects(display.bounds()) || !IsWindowPlacementGranted(host))
display = screen->GetDisplayNearestView(host->GetNativeView());
bounds->AdjustToFit(display.work_area());
return display.id();
}
// A ColorProviderSource used when one has not been explicitly set. This source
// only reflects theme information present in the web NativeTheme singleton.
// Keep this an implementation detail of WebContentsImpl as we should not be
// exposing a default ColorProviderSource generally.
class DefaultColorProviderSource : public ui::ColorProviderSource,
public ui::NativeThemeObserver {
public:
DefaultColorProviderSource() {
native_theme_observation_.Observe(ui::NativeTheme::GetInstanceForWeb());
}
DefaultColorProviderSource(const DefaultColorProviderSource&) = delete;
DefaultColorProviderSource& operator=(const DefaultColorProviderSource&) =
delete;
~DefaultColorProviderSource() override = default;
static DefaultColorProviderSource* GetInstance() {
static base::NoDestructor<DefaultColorProviderSource> instance;
return instance.get();
}
// ui::ColorProviderSource:
const ui::ColorProvider* GetColorProvider() const override {
return ui::ColorProviderManager::Get().GetColorProviderFor(
GetColorProviderKey());
}
// ui::NativeThemeObserver:
void OnNativeThemeUpdated(ui::NativeTheme* observed_theme) override {
DCHECK(native_theme_observation_.IsObservingSource(observed_theme));
NotifyColorProviderChanged();
}
protected:
// ui::ColorProviderSource:
ui::ColorProviderManager::Key GetColorProviderKey() const override {
return ui::NativeTheme::GetInstanceForWeb()->GetColorProviderKey(nullptr);
}
private:
base::ScopedObservation<ui::NativeTheme, ui::NativeThemeObserver>
native_theme_observation_{this};
};
size_t GetFrameTreeSize(FrameTree* frame_tree) {
size_t tree_size = 0;
FrameTree::NodeRange node_range = frame_tree->NodesIncludingInnerTreeNodes();
FrameTree::NodeIterator node_iter = node_range.begin();
while (node_iter != node_range.end()) {
// Skip over collapsed frame trees.
if ((*node_iter)->is_collapsed()) {
node_iter.AdvanceSkippingChildren();
} else {
++tree_size;
++node_iter;
}
}
return tree_size;
}
} // namespace
CreatedWindow::CreatedWindow() = default;
CreatedWindow::CreatedWindow(std::unique_ptr<WebContentsImpl> contents,
GURL target_url)
: contents(std::move(contents)), target_url(std::move(target_url)) {}
CreatedWindow::~CreatedWindow() = default;
CreatedWindow::CreatedWindow(CreatedWindow&&) = default;
CreatedWindow& CreatedWindow::operator=(CreatedWindow&&) = default;
std::unique_ptr<WebContents> WebContents::Create(
const WebContents::CreateParams& params) {
return WebContentsImpl::Create(params);
}
std::unique_ptr<WebContentsImpl> WebContentsImpl::Create(
const CreateParams& params) {
return CreateWithOpener(params, FindOpenerRFH(params));
}
std::unique_ptr<WebContents> WebContents::CreateWithSessionStorage(
const WebContents::CreateParams& params,
const SessionStorageNamespaceMap& session_storage_namespace_map) {
OPTIONAL_TRACE_EVENT0("content", "WebContents::CreateWithSessionStorage");
std::unique_ptr<WebContentsImpl> new_contents(
new WebContentsImpl(params.browser_context));
RenderFrameHostImpl* opener_rfh = FindOpenerRFH(params);
FrameTreeNode* opener = nullptr;
if (opener_rfh)
opener = opener_rfh->frame_tree_node();
new_contents->SetOpenerForNewContents(opener, params.opener_suppressed);
for (const auto& it : session_storage_namespace_map) {
new_contents->GetController().SetSessionStorageNamespace(it.first,
it.second.get());
}
WebContentsImpl* outer_web_contents = nullptr;
if (params.guest_delegate) {
// This makes |new_contents| act as a guest.
// For more info, see comment above class BrowserPluginGuest.
BrowserPluginGuest::CreateInWebContents(new_contents.get(),
params.guest_delegate);
outer_web_contents = static_cast<WebContentsImpl*>(
params.guest_delegate->GetOwnerWebContents());
}
new_contents->Init(params, blink::FramePolicy());
if (outer_web_contents)
outer_web_contents->InnerWebContentsCreated(new_contents.get());
return new_contents;
}
void WebContentsImpl::FriendWrapper::AddCreatedCallbackForTesting(
const CreatedCallback& callback) {
g_created_callbacks.Get().push_back(callback);
}
void WebContentsImpl::FriendWrapper::RemoveCreatedCallbackForTesting(
const CreatedCallback& callback) {
for (size_t i = 0; i < g_created_callbacks.Get().size(); ++i) {
if (g_created_callbacks.Get().at(i) == callback) {
g_created_callbacks.Get().erase(g_created_callbacks.Get().begin() + i);
return;
}
}
}
WebContents* WebContents::FromRenderViewHost(RenderViewHost* rvh) {
OPTIONAL_TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContents::FromRenderViewHost", "render_view_host",
rvh);
if (!rvh)
return nullptr;
return static_cast<WebContentsImpl*>(
static_cast<RenderViewHostImpl*>(rvh)->GetDelegate());
}
WebContents* WebContents::FromRenderFrameHost(RenderFrameHost* rfh) {
OPTIONAL_TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContents::FromRenderFrameHost", "render_frame_host",
rfh);
return WebContentsImpl::FromRenderFrameHostImpl(
static_cast<RenderFrameHostImpl*>(rfh));
}
WebContentsImpl* WebContentsImpl::FromRenderFrameHostImpl(
RenderFrameHostImpl* rfh) {
OPTIONAL_TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::FromRenderFrameHostImpl",
"render_frame_host", rfh);
if (!rfh)
return nullptr;
return static_cast<WebContentsImpl*>(rfh->delegate());
}
WebContents* WebContents::FromFrameTreeNodeId(int frame_tree_node_id) {
OPTIONAL_TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContents::FromFrameTreeNodeId",
"frame_tree_node_id", frame_tree_node_id);
FrameTreeNode* frame_tree_node =
FrameTreeNode::GloballyFindByID(frame_tree_node_id);
if (!frame_tree_node)
return nullptr;
return WebContentsImpl::FromFrameTreeNode(frame_tree_node);
}
WebContentsImpl* WebContentsImpl::FromRenderWidgetHostImpl(
RenderWidgetHostImpl* rwh) {
if (!rwh)
return nullptr;
return static_cast<WebContentsImpl*>(rwh->delegate());
}
void WebContents::SetScreenOrientationDelegate(
ScreenOrientationDelegate* delegate) {
ScreenOrientationProvider::SetDelegate(delegate);
}
// WebContentsImpl::RenderWidgetHostDestructionObserver -----------------------
class WebContentsImpl::RenderWidgetHostDestructionObserver
: public RenderWidgetHostObserver {
public:
RenderWidgetHostDestructionObserver(WebContentsImpl* owner,
RenderWidgetHost* watched_host)
: owner_(owner), watched_host_(watched_host) {
watched_host_->AddObserver(this);
}
RenderWidgetHostDestructionObserver(
const RenderWidgetHostDestructionObserver&) = delete;
RenderWidgetHostDestructionObserver& operator=(
const RenderWidgetHostDestructionObserver&) = delete;
~RenderWidgetHostDestructionObserver() override {
watched_host_->RemoveObserver(this);
}
// RenderWidgetHostObserver:
void RenderWidgetHostDestroyed(RenderWidgetHost* widget_host) override {
owner_->OnRenderWidgetHostDestroyed(widget_host);
}
private:
raw_ptr<WebContentsImpl> owner_;
raw_ptr<RenderWidgetHost> watched_host_;
};
// WebContentsImpl::WebContentsDestructionObserver ----------------------------
class WebContentsImpl::WebContentsDestructionObserver
: public WebContentsObserver {
public:
WebContentsDestructionObserver(WebContentsImpl* owner,
WebContents* watched_contents)
: WebContentsObserver(watched_contents), owner_(owner) {}
WebContentsDestructionObserver(const WebContentsDestructionObserver&) =
delete;
WebContentsDestructionObserver& operator=(
const WebContentsDestructionObserver&) = delete;
// WebContentsObserver:
void WebContentsDestroyed() override {
owner_->OnWebContentsDestroyed(
static_cast<WebContentsImpl*>(web_contents()));
}
private:
raw_ptr<WebContentsImpl> owner_;
};
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC)
// TODO(sreejakshetty): Make |WebContentsImpl::ColorChooserHolder| per-frame
// instead of WebContents-owned.
// WebContentsImpl::ColorChooserHolder -----------------------------------------
class WebContentsImpl::ColorChooserHolder : public blink::mojom::ColorChooser {
public:
ColorChooserHolder(
mojo::PendingReceiver<blink::mojom::ColorChooser> receiver,
mojo::PendingRemote<blink::mojom::ColorChooserClient> client)
: receiver_(this, std::move(receiver)), client_(std::move(client)) {}
~ColorChooserHolder() override {
if (chooser_)
chooser_->End();
}
void SetChooser(std::unique_ptr<content::ColorChooser> chooser) {
chooser_ = std::move(chooser);
if (chooser_) {
receiver_.set_disconnect_handler(
base::BindOnce([](content::ColorChooser* chooser) { chooser->End(); },
base::Unretained(chooser_.get())));
}
}
void SetSelectedColor(SkColor color) override {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::ColorChooserHolder::SetSelectedColor");
if (chooser_)
chooser_->SetSelectedColor(color);
}
void DidChooseColorInColorChooser(SkColor color) {
OPTIONAL_TRACE_EVENT0(
"content",
"WebContentsImpl::ColorChooserHolder::DidChooseColorInColorChooser");
client_->DidChooseColor(color);
}
private:
// Color chooser that was opened by this tab.
std::unique_ptr<content::ColorChooser> chooser_;
// mojo receiver.
mojo::Receiver<blink::mojom::ColorChooser> receiver_;
// mojo renderer client.
mojo::Remote<blink::mojom::ColorChooserClient> client_;
};
#endif // BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC)
// WebContentsImpl::WebContentsTreeNode ----------------------------------------
WebContentsImpl::WebContentsTreeNode::WebContentsTreeNode(
WebContentsImpl* current_web_contents)
: current_web_contents_(current_web_contents),
outer_web_contents_(nullptr),
outer_contents_frame_tree_node_id_(
FrameTreeNode::kFrameTreeNodeInvalidId),
focused_frame_tree_(
current_web_contents->GetPrimaryFrameTree().GetSafeRef()) {}
WebContentsImpl::WebContentsTreeNode::~WebContentsTreeNode() = default;
std::unique_ptr<WebContents>
WebContentsImpl::WebContentsTreeNode::DisconnectFromOuterWebContents() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsTreeNode::DisconnectFromOuterWebContents");
std::unique_ptr<WebContents> inner_contents =
outer_web_contents_->node_.DetachInnerWebContents(current_web_contents_);
OuterContentsFrameTreeNode()->RemoveObserver(this);
outer_contents_frame_tree_node_id_ = FrameTreeNode::kFrameTreeNodeInvalidId;
outer_web_contents_ = nullptr;
return inner_contents;
}
void WebContentsImpl::WebContentsTreeNode::AttachInnerWebContents(
std::unique_ptr<WebContents> inner_web_contents,
RenderFrameHostImpl* render_frame_host) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsTreeNode::AttachInnerWebContents");
WebContentsImpl* inner_web_contents_impl =
static_cast<WebContentsImpl*>(inner_web_contents.get());
WebContentsTreeNode& inner_web_contents_node = inner_web_contents_impl->node_;
inner_web_contents_node.outer_web_contents_ = current_web_contents_;
inner_web_contents_node.outer_contents_frame_tree_node_id_ =
render_frame_host->frame_tree_node()->frame_tree_node_id();
inner_web_contents_.push_back(std::move(inner_web_contents));
render_frame_host->frame_tree_node()->AddObserver(&inner_web_contents_node);
current_web_contents_->InnerWebContentsAttached(inner_web_contents_impl);
}
std::unique_ptr<WebContents>
WebContentsImpl::WebContentsTreeNode::DetachInnerWebContents(
WebContentsImpl* inner_web_contents) {
OPTIONAL_TRACE_EVENT0(
"content",
"WebContentsImpl::WebContentsTreeNode::DetachInnerWebContents");
std::unique_ptr<WebContents> detached_contents;
for (std::unique_ptr<WebContents>& web_contents : inner_web_contents_) {
if (web_contents.get() == inner_web_contents) {
detached_contents = std::move(web_contents);
std::swap(web_contents, inner_web_contents_.back());
inner_web_contents_.pop_back();
current_web_contents_->InnerWebContentsDetached(inner_web_contents);
return detached_contents;
}
}
NOTREACHED();
return nullptr;
}
FrameTreeNode*
WebContentsImpl::WebContentsTreeNode::OuterContentsFrameTreeNode() const {
return FrameTreeNode::GloballyFindByID(outer_contents_frame_tree_node_id_);
}
void WebContentsImpl::WebContentsTreeNode::OnFrameTreeNodeDestroyed(
FrameTreeNode* node) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsTreeNode::OnFrameTreeNodeDestroyed");
DCHECK_EQ(outer_contents_frame_tree_node_id_, node->frame_tree_node_id())
<< "WebContentsTreeNode should only receive notifications for the "
"FrameTreeNode in its outer WebContents that hosts it.";
// Deletes |this| too.
outer_web_contents_->node_.DetachInnerWebContents(current_web_contents_);
}
void WebContentsImpl::WebContentsTreeNode::SetFocusedFrameTree(
FrameTree* frame_tree) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsTreeNode::SetFocusedFrameTree");
DCHECK(!outer_web_contents())
<< "Only the outermost WebContents tracks focus.";
focused_frame_tree_ = frame_tree->GetSafeRef();
}
WebContentsImpl*
WebContentsImpl::WebContentsTreeNode::GetInnerWebContentsInFrame(
const FrameTreeNode* frame) {
auto ftn_id = frame->frame_tree_node_id();
for (auto& contents : inner_web_contents_) {
WebContentsImpl* impl = static_cast<WebContentsImpl*>(contents.get());
if (impl->node_.outer_contents_frame_tree_node_id() == ftn_id) {
return impl;
}
}
return nullptr;
}
std::vector<WebContentsImpl*>
WebContentsImpl::WebContentsTreeNode::GetInnerWebContents() const {
std::vector<WebContentsImpl*> inner_web_contents;
for (auto& contents : inner_web_contents_)
inner_web_contents.push_back(static_cast<WebContentsImpl*>(contents.get()));
return inner_web_contents;
}
// WebContentsObserverList -----------------------------------------------------
WebContentsImpl::WebContentsObserverList::WebContentsObserverList() = default;
WebContentsImpl::WebContentsObserverList::~WebContentsObserverList() = default;
void WebContentsImpl::WebContentsObserverList::AddObserver(
WebContentsObserver* observer) {
observers_.AddObserver(observer);
}
void WebContentsImpl::WebContentsObserverList::RemoveObserver(
WebContentsObserver* observer) {
observers_.RemoveObserver(observer);
}
// WebContentsImpl -------------------------------------------------------------
WebContentsImpl::WebContentsImpl(BrowserContext* browser_context)
: delegate_(nullptr),
render_view_host_delegate_view_(nullptr),
opened_by_another_window_(false),
primary_frame_tree_(browser_context,
this,
this,
this,
this,
this,
this,
this,
this,
FrameTree::Type::kPrimary),
node_(this),
primary_main_frame_process_status_(
base::TERMINATION_STATUS_STILL_RUNNING),
primary_main_frame_process_error_code_(0),
load_state_(net::LOAD_STATE_IDLE, std::u16string()),
upload_size_(0),
upload_position_(0),
is_resume_pending_(false),
notify_disconnection_(false),
dialog_manager_(nullptr),
is_showing_before_unload_dialog_(false),
last_active_time_(base::TimeTicks::Now()),
closed_by_user_gesture_(false),
minimum_zoom_percent_(
static_cast<int>(blink::kMinimumPageZoomFactor * 100)),
maximum_zoom_percent_(
static_cast<int>(blink::kMaximumPageZoomFactor * 100)),
zoom_scroll_remainder_(0),
force_disable_overscroll_content_(false),
last_dialog_suppressed_(false),
accessibility_mode_(
GetContentClient()->browser()->GetAXModeForBrowserContext(
browser_context)),
audio_stream_monitor_(this),
media_web_contents_observer_(
std::make_unique<MediaWebContentsObserver>(this)),
is_overlay_content_(false),
showing_context_menu_(false),
prerender_host_registry_(blink::features::IsPrerender2Enabled()
? std::make_unique<PrerenderHostRegistry>()
: nullptr),
audible_power_mode_voter_(
power_scheduler::PowerModeArbiter::GetInstance()->NewVoter(
"PowerModeVoter.Audible")) {
TRACE_EVENT0("content", "WebContentsImpl::WebContentsImpl");
#if BUILDFLAG(ENABLE_PLUGINS)
pepper_playback_observer_ = std::make_unique<PepperPlaybackObserver>(this);
#endif
#if BUILDFLAG(IS_ANDROID)
display_cutout_host_impl_ = std::make_unique<DisplayCutoutHostImpl>(this);
#endif
// WebContents can exist independently of a ColorProviderSource and is still
// expected to be able to render its content and be inserted into a
// gfx::NativeView hierarchy. Whilst most WebContents clients should be
// setting a ColorProviderSource we must accommodate for cases where this is
// not currently being done. For these cases fallback to the default source.
SetColorProviderSource(DefaultColorProviderSource::GetInstance());
ui::NativeTheme* native_theme = ui::NativeTheme::GetInstanceForWeb();
native_theme_observation_.Observe(native_theme);
using_dark_colors_ = native_theme->ShouldUseDarkColors();
preferred_color_scheme_ = native_theme->GetPreferredColorScheme();
preferred_contrast_ = native_theme->GetPreferredContrast();
screen_change_monitor_ =
std::make_unique<ScreenChangeMonitor>(base::BindRepeating(
&WebContentsImpl::OnScreensChange, base::Unretained(this)));
// AttributionHost takes a weak ref on |this|, so it must be created outside
// of the initializer list.
if (base::FeatureList::IsEnabled(blink::features::kConversionMeasurement)) {
AttributionHost::CreateForWebContents(this);
}
#if BUILDFLAG(USE_PARTITION_ALLOC_AS_MALLOC) && defined(PA_ALLOW_PCSCAN)
// TODO(1231679): Remove or move to another place after finishing the PCScan
// experiment.
if (base::internal::PCScan::IsInitialized()) {
star_scan_load_observer_ = std::make_unique<StarScanLoadObserver>(this);
}
#endif
}
WebContentsImpl::~WebContentsImpl() {
TRACE_EVENT0("content", "WebContentsImpl::~WebContentsImpl");
// Imperfect sanity check against double free, given some crashes unexpectedly
// observed in the wild.
CHECK(!IsBeingDestroyed());
// We generally keep track of is_being_destroyed_ to let other features know
// to avoid certain actions during destruction.
is_being_destroyed_ = true;
// A WebContents should never be deleted while it is notifying observers,
// since this will lead to a use-after-free as it continues to notify later
// observers.
CHECK(!observers_.is_notifying_observers());
// This is used to watch for one-off observers (i.e. non-WebContentsObservers)
// destroying WebContents, which they should not do.
CHECK(!prevent_destruction_);
// We usually record `max_loaded_frame_count_` in `DidFinishNavigation()`
// for pages the user navigated away from other than the last one. We record
// it for the last page here.
if (first_primary_navigation_completed_)
RecordMaxFrameCountUMA(max_loaded_frame_count_);
FullscreenContentsSet(GetBrowserContext())->erase(this);
rwh_input_event_router_.reset();
WebContentsImpl* outermost = GetOutermostWebContents();
if (this != outermost && ContainsOrIsFocusedWebContents()) {
// If the current WebContents is in focus, unset it.
outermost->SetAsFocusedWebContentsIfNecessary();
}
if (mouse_lock_widget_)
mouse_lock_widget_->RejectMouseLockOrUnlockIfNecessary(
blink::mojom::PointerLockResult::kElementDestroyed);
for (RenderWidgetHostImpl* widget : created_widgets_)
widget->DetachDelegate();
created_widgets_.clear();
// Clear out any JavaScript state.
if (dialog_manager_) {
dialog_manager_->CancelDialogs(this, /*reset_state=*/true);
}
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC)
color_chooser_holder_.reset();
#endif // BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC)
find_request_manager_.reset();
// Shutdown the primary FrameTree.
primary_frame_tree_.Shutdown();
// Shutdown the non-primary FrameTrees.
//
// Do this here rather than relying on the owner of the FrameTree to shutdown
// on WebContentsDestroyed(), so that all the FrameTrees are shutdown at the
// same time for consistency. Also, destroying a FrameTree results in other
// observer functions like RenderFrameDeleted() being called, which are not
// expected to be called after WebContentsDestroyed().
//
// Currently the only instances of the non-primary FrameTrees are for
// prerendering. Shutdown them by destructing PrerenderHostRegistry.
prerender_host_registry_.reset();
#if BUILDFLAG(ENABLE_PLUGINS)
// Call this before WebContentsDestroyed() is broadcasted since
// AudioFocusManager will be destroyed after that.
pepper_playback_observer_.reset();
#endif // defined(ENABLED_PLUGINS)
// If audio is playing then notify external observers of the audio stream
// disappearing.
if (is_currently_audible_) {
is_currently_audible_ = false;
observers_.NotifyObservers(&WebContentsObserver::OnAudioStateChanged,
false);
if (GetOuterWebContents())
GetOuterWebContents()->OnAudioStateChanged();
}
#if BUILDFLAG(IS_ANDROID)
// For simplicity, destroy the Java WebContents before we notify of the
// destruction of the WebContents.
ClearWebContentsAndroid();
#endif
// |save_package_| is refcounted so make sure we clear the page before
// we toss out our reference.
if (save_package_)
save_package_->ClearPage();
observers_.NotifyObservers(&WebContentsObserver::WebContentsDestroyed);
observers_.NotifyObservers(&WebContentsObserver::ResetWebContents);
SetDelegate(nullptr);
}
std::unique_ptr<WebContentsImpl> WebContentsImpl::CreateWithOpener(
const WebContents::CreateParams& params,
RenderFrameHostImpl* opener_rfh) {
OPTIONAL_TRACE_EVENT1("browser", "WebContentsImpl::CreateWithOpener",
"opener", opener_rfh);
FrameTreeNode* opener = nullptr;
if (opener_rfh)
opener = opener_rfh->frame_tree_node();
std::unique_ptr<WebContentsImpl> new_contents(
new WebContentsImpl(params.browser_context));
new_contents->SetOpenerForNewContents(opener, params.opener_suppressed);
// If the opener is sandboxed, a new popup must inherit the opener's sandbox
// flags, and these flags take effect immediately. An exception is if the
// opener's sandbox flags lack the PropagatesToAuxiliaryBrowsingContexts
// bit (which is controlled by the "allow-popups-to-escape-sandbox" token).
// See https://html.spec.whatwg.org/C/#attr-iframe-sandbox.
FrameTreeNode* new_root = new_contents->GetPrimaryFrameTree().root();
if (opener) {
network::mojom::WebSandboxFlags opener_flags =
opener_rfh->active_sandbox_flags();
if (opener_rfh->IsSandboxed(network::mojom::WebSandboxFlags::
kPropagatesToAuxiliaryBrowsingContexts)) {
new_root->SetPendingFramePolicy({opener_flags,
{} /* container_policy */,
{} /* required_document_policy */});
}
new_root->SetInitialPopupURL(params.initial_popup_url);
new_root->SetPopupCreatorOrigin(opener_rfh->GetLastCommittedOrigin());
}
// Apply starting sandbox flags.
blink::FramePolicy frame_policy(new_root->pending_frame_policy());
frame_policy.sandbox_flags |= params.starting_sandbox_flags;
new_root->SetPendingFramePolicy(frame_policy);
// This may be true even when opener is null, such as when opening blocked
// popups.
if (params.opened_by_another_window)
new_contents->opened_by_another_window_ = true;
WebContentsImpl* outer_web_contents = nullptr;
if (params.guest_delegate) {
// This makes |new_contents| act as a guest.
// For more info, see comment above class BrowserPluginGuest.
BrowserPluginGuest::CreateInWebContents(new_contents.get(),
params.guest_delegate);
outer_web_contents = static_cast<WebContentsImpl*>(
params.guest_delegate->GetOwnerWebContents());
}
new_contents->Init(params, frame_policy);
if (outer_web_contents)
outer_web_contents->InnerWebContentsCreated(new_contents.get());
return new_contents;
}
// static
std::vector<WebContentsImpl*> WebContentsImpl::GetAllWebContents() {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::GetAllWebContents");
std::vector<WebContentsImpl*> result;
std::unique_ptr<RenderWidgetHostIterator> widgets(
RenderWidgetHostImpl::GetRenderWidgetHosts());
while (RenderWidgetHost* rwh = widgets->GetNextHost()) {
RenderViewHost* rvh = RenderViewHost::From(rwh);
if (!rvh)
continue;
WebContents* web_contents = WebContents::FromRenderViewHost(rvh);
if (!web_contents)
continue;
if (web_contents->GetMainFrame()->GetRenderViewHost() != rvh)
continue;
// Because a WebContents can only have one current RVH at a time, there will
// be no duplicate WebContents here.
result.push_back(static_cast<WebContentsImpl*>(web_contents));
}
return result;
}
// static
WebContentsImpl* WebContentsImpl::FromFrameTreeNode(
const FrameTreeNode* frame_tree_node) {
OPTIONAL_TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::FromFrameTreeNode", "frame_tree_node",
static_cast<const void*>(frame_tree_node));
return static_cast<WebContentsImpl*>(
WebContents::FromRenderFrameHost(frame_tree_node->current_frame_host()));
}
// static
WebContents* WebContentsImpl::FromRenderFrameHostID(
GlobalRenderFrameHostId render_frame_host_id) {
OPTIONAL_TRACE_EVENT2(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::FromRenderFrameHostID", "process_id",
render_frame_host_id.child_id, "frame_id",
render_frame_host_id.frame_routing_id);
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI) ||
!BrowserThread::IsThreadInitialized(BrowserThread::UI));
RenderFrameHost* render_frame_host =
RenderFrameHost::FromID(render_frame_host_id);
if (!render_frame_host)
return nullptr;
return WebContents::FromRenderFrameHost(render_frame_host);
}
// static
WebContents* WebContentsImpl::FromRenderFrameHostID(int render_process_host_id,
int render_frame_host_id) {
return FromRenderFrameHostID(
GlobalRenderFrameHostId(render_process_host_id, render_frame_host_id));
}
// static
WebContentsImpl* WebContentsImpl::FromOuterFrameTreeNode(
const FrameTreeNode* frame_tree_node) {
OPTIONAL_TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::FromOuterFrameTreeNode",
"frame_tree_node",
static_cast<const void*>(frame_tree_node));
return WebContentsImpl::FromFrameTreeNode(frame_tree_node)
->node_.GetInnerWebContentsInFrame(frame_tree_node);
}
RenderFrameHostManager* WebContentsImpl::GetRenderManagerForTesting() {
return GetRenderManager();
}
bool WebContentsImpl::OnMessageReceived(RenderFrameHostImpl* render_frame_host,
const IPC::Message& message) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnMessageReceived",
"render_frame_host", render_frame_host);
for (auto& observer : observers_.observer_list()) {
if (observer.OnMessageReceived(message, render_frame_host))
return true;
}
return false;
}
std::string WebContentsImpl::GetTitleForMediaControls() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::GetTitleForMediaControls");
if (!delegate_)
return std::string();
return delegate_->GetTitleForMediaControls(this);
}
// Returns the NavigationController for the primary FrameTree, i.e. the one
// whose URL is shown in the omnibox. With MPArch we can have multiple
// FrameTrees in one WebContents and each has its own NavigationController.
// TODO(https://crbug.com/1170273): Make sure callers are aware of this.
NavigationControllerImpl& WebContentsImpl::GetController() {
return primary_frame_tree_.controller();
}
BrowserContext* WebContentsImpl::GetBrowserContext() {
return GetController().GetBrowserContext();
}
base::WeakPtr<WebContents> WebContentsImpl::GetWeakPtr() {
return weak_factory_.GetWeakPtr();
}
const GURL& WebContentsImpl::GetURL() {
return GetVisibleURL();
}
const GURL& WebContentsImpl::GetVisibleURL() {
// We may not have a navigation entry yet.
NavigationEntry* entry = GetController().GetVisibleEntry();
return entry ? entry->GetVirtualURL() : GURL::EmptyGURL();
}
const GURL& WebContentsImpl::GetLastCommittedURL() {
// We may not have a navigation entry yet.
NavigationEntry* entry = GetController().GetLastCommittedEntry();
return entry ? entry->GetVirtualURL() : GURL::EmptyGURL();
}
WebContentsDelegate* WebContentsImpl::GetDelegate() {
return delegate_;
}
void WebContentsImpl::SetDelegate(WebContentsDelegate* delegate) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SetDelegate", "delegate",
static_cast<void*>(delegate));
// TODO(cbentzel): remove this debugging code?
if (delegate == delegate_)
return;
if (delegate_)
delegate_->Detach(this);
delegate_ = delegate;
if (delegate_) {
delegate_->Attach(this);
// RenderFrameDevToolsAgentHost should not be told about the WebContents
// until there is a `delegate_`.
RenderFrameDevToolsAgentHost::AttachToWebContents(this);
}
// Re-read values from the new delegate and apply them.
if (view_)
view_->SetOverscrollControllerEnabled(CanOverscrollContent());
}
RenderFrameHostImpl* WebContentsImpl::GetMainFrame() {
return primary_frame_tree_.root()->current_frame_host();
}
PageImpl& WebContentsImpl::GetPrimaryPage() {
// We should not be accessing Page during the destruction of this WebContents,
// as the Page has already been cleared.
//
// Please note that IsBeingDestroyed() should be checked to ensure that we
// don't access Page related data that is going to be destroyed.
CHECK(primary_frame_tree_.root()->current_frame_host());
return primary_frame_tree_.root()->current_frame_host()->GetPage();
}
RenderFrameHostImpl* WebContentsImpl::GetFocusedFrame() {
FrameTreeNode* focused_node = primary_frame_tree_.GetFocusedFrame();
if (!focused_node)
return nullptr;
return focused_node->current_frame_host();
}
bool WebContentsImpl::IsPrerenderedFrame(int frame_tree_node_id) {
if (frame_tree_node_id == RenderFrameHost::kNoFrameTreeNodeId)
return false;
FrameTreeNode* frame_tree_node =
FrameTreeNode::GloballyFindByID(frame_tree_node_id);
if (!frame_tree_node)
return false;
// In the case of inner frame trees in a prerender, the inner frame tree's
// type, would not be FrameTree::Type::kPrerender. So if this is not the
// outermost frame, we use the lifecycle state of the document that owns this.
// TODO(1196715, 1232528): This relies on the LifecycleState being correct
// in the case of inner frame trees.
if (frame_tree_node->GetParentOrOuterDocumentOrEmbedder()) {
return frame_tree_node->GetParentOrOuterDocumentOrEmbedder()
->lifecycle_state() ==
RenderFrameHostImpl::LifecycleStateImpl::kPrerendering;
}
return frame_tree_node->frame_tree()->type() == FrameTree::Type::kPrerender;
}
RenderFrameHostImpl* WebContentsImpl::UnsafeFindFrameByFrameTreeNodeId(
int frame_tree_node_id) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::UnsafeFindFrameByFrameTreeNodeId",
"frame_tree_node_id", frame_tree_node_id);
// Beware using this! The RenderFrameHost may have changed since the caller
// obtained frame_tree_node_id.
FrameTreeNode* ftn = FrameTreeNode::GloballyFindByID(frame_tree_node_id);
if (!ftn)
return nullptr;
if (this != WebContents::FromRenderFrameHost(ftn->current_frame_host()))
return nullptr;
return ftn->current_frame_host();
}
void WebContentsImpl::ForEachFrame(
const base::RepeatingCallback<void(RenderFrameHost*)>& on_frame) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::ForEachFrame");
for (FrameTreeNode* node : primary_frame_tree_.Nodes()) {
on_frame.Run(node->current_frame_host());
}
}
void WebContentsImpl::ForEachRenderFrameHost(
RenderFrameHost::FrameIterationCallback on_frame) {
ForEachRenderFrameHost(RenderFrameHostImpl::FrameIterationWrapper(on_frame));
}
void WebContentsImpl::ForEachRenderFrameHost(
RenderFrameHost::FrameIterationAlwaysContinueCallback on_frame) {
ForEachRenderFrameHost(RenderFrameHostImpl::FrameIterationWrapper(on_frame));
}
void WebContentsImpl::ForEachRenderFrameHost(
RenderFrameHostImpl::FrameIterationCallbackImpl on_frame) {
ForEachRenderFrameHostImpl(on_frame, /* include_speculative */ false);
}
void WebContentsImpl::ForEachRenderFrameHost(
RenderFrameHostImpl::FrameIterationAlwaysContinueCallbackImpl on_frame) {
ForEachRenderFrameHost(RenderFrameHostImpl::FrameIterationWrapper(on_frame));
}
void WebContentsImpl::ForEachRenderFrameHostIncludingSpeculative(
RenderFrameHostImpl::FrameIterationCallbackImpl on_frame) {
ForEachRenderFrameHostImpl(on_frame, /* include_speculative */ true);
}
void WebContentsImpl::ForEachRenderFrameHostIncludingSpeculative(
RenderFrameHostImpl::FrameIterationAlwaysContinueCallbackImpl on_frame) {
ForEachRenderFrameHostIncludingSpeculative(
RenderFrameHostImpl::FrameIterationWrapper(on_frame));
}
void WebContentsImpl::ForEachRenderFrameHostImpl(
RenderFrameHostImpl::FrameIterationCallbackImpl on_frame,
bool include_speculative) {
// Since |RenderFrameHostImpl::ForEachRenderFrameHost| will reach the
// RenderFrameHosts descending from a specified root, it is enough to start
// iteration from each of the outermost main frames to reach everything in
// this WebContents. However, if iteration stops early in
// |RenderFrameHostImpl::ForEachRenderFrameHost|, we also need to stop early
// by not iterating over additional outermost main frames.
bool iteration_stopped = false;
RenderFrameHostImpl::FrameIterationCallbackImpl on_frame_with_termination =
base::BindRepeating(
[](bool& iteration_stopped,
RenderFrameHostImpl::FrameIterationCallbackImpl on_frame,
RenderFrameHostImpl* rfh) {
const auto action = on_frame.Run(rfh);
if (action == RenderFrameHost::FrameIterationAction::kStop) {
iteration_stopped = true;
}
return action;
},
std::ref(iteration_stopped), on_frame);
for (auto* rfh : GetOutermostMainFrames()) {
if (include_speculative) {
rfh->ForEachRenderFrameHostIncludingSpeculative(
on_frame_with_termination);
} else {
rfh->ForEachRenderFrameHost(on_frame_with_termination);
}
if (iteration_stopped) {
return;
}
}
}
void WebContentsImpl::ForEachFrameTree(
FrameTreeIterationCallback on_frame_tree) {
// Consider all outermost frame trees, and for each, iterate through their
// FrameTreeNodes to find any inner frame trees.
for (FrameTree* outermost_frame_tree : GetOutermostFrameTrees()) {
FrameTree::NodeRange node_range =
outermost_frame_tree->NodesIncludingInnerTreeNodes();
FrameTree::NodeIterator node_iter = node_range.begin();
while (node_iter != node_range.end()) {
FrameTreeNode* node = *node_iter;
if (FromFrameTreeNode(node) != this) {
// Exclude any inner frame trees based on multi-WebContents
// architecture.
node_iter.AdvanceSkippingChildren();
} else {
if (node->IsMainFrame()) {
on_frame_tree.Run(node->frame_tree());
}
++node_iter;
}
}
}
}
std::vector<FrameTree*> WebContentsImpl::GetOutermostFrameTrees() {
// If the WebContentsImpl is being destroyed, then we should not
// perform the tree traversal.
if (IsBeingDestroyed())
return {};
std::vector<FrameTree*> result;
result.push_back(&GetPrimaryFrameTree());
if (blink::features::IsPrerender2Enabled()) {
const std::vector<FrameTree*> prerender_frame_trees =
GetPrerenderHostRegistry()->GetPrerenderFrameTrees();
result.insert(result.end(), prerender_frame_trees.begin(),
prerender_frame_trees.end());
}
return result;
}
std::vector<RenderFrameHostImpl*> WebContentsImpl::GetOutermostMainFrames() {
// Do nothing if the WebContents is currently being initialized or destroyed.
if (!GetMainFrame())
return {};
std::vector<RenderFrameHostImpl*> result;
for (FrameTree* outermost_frame_tree : GetOutermostFrameTrees()) {
DCHECK(outermost_frame_tree->GetMainFrame());
result.push_back(outermost_frame_tree->GetMainFrame());
}
for (const auto& entry : GetController().GetBackForwardCache().GetEntries()) {
result.push_back(entry->render_frame_host());
}
// In the case of inner WebContents, we still allow this method to be called,
// but the semantics of the values being returned are "outermost
// within this WebContents" as opposed to truly outermost. We would not expect
// any other outermost pages besides the primary page in the case of inner
// WebContents.
DCHECK(!GetOuterWebContents() || (result.size() == 1));
return result;
}
void WebContentsImpl::ExecutePageBroadcastMethod(
PageBroadcastMethodCallback callback) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::ExecutePageBroadcastMethod");
primary_frame_tree_.root()->render_manager()->ExecutePageBroadcastMethod(
callback);
}
void WebContentsImpl::ExecutePageBroadcastMethodForAllPages(
PageBroadcastMethodCallback callback) {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::ExecutePageBroadcastMethodForAllPages");
ForEachFrameTree(base::BindRepeating(
[](PageBroadcastMethodCallback* callback, FrameTree* frame_tree) {
frame_tree->root()->render_manager()->ExecutePageBroadcastMethod(
*callback);
},
&callback));
}
RenderViewHostImpl* WebContentsImpl::GetRenderViewHost() {
return GetRenderManager()->current_frame_host()->render_view_host();
}
void WebContentsImpl::CancelActiveAndPendingDialogs() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::CancelActiveAndPendingDialogs");
if (dialog_manager_) {
dialog_manager_->CancelDialogs(this, /*reset_state=*/false);
}
if (browser_plugin_embedder_)
browser_plugin_embedder_->CancelGuestDialogs();
}
void WebContentsImpl::ClosePage() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::ClosePage");
GetRenderViewHost()->ClosePage();
}
RenderWidgetHostView* WebContentsImpl::GetRenderWidgetHostView() {
return GetRenderManager()->GetRenderWidgetHostView();
}
RenderWidgetHostView* WebContentsImpl::GetTopLevelRenderWidgetHostView() {
if (GetOuterWebContents())
return GetOuterWebContents()->GetTopLevelRenderWidgetHostView();
return GetRenderManager()->GetRenderWidgetHostView();
}
WebContentsView* WebContentsImpl::GetView() const {
return view_.get();
}
void WebContentsImpl::OnScreensChange(bool is_multi_screen_changed) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnScreensChange",
"is_multi_screen_changed", is_multi_screen_changed);
// Allow fullscreen requests shortly after user-generated screens changes.
// TODO(crbug.com/1169291): Mac should not activate this on local process
// display::Screen signals, but via RenderWidgetHostViewMac screen updates.
transient_allow_fullscreen_.Activate();
// Mac display info may originate from a remote process hosting the NSWindow;
// this local process display::Screen signal should not trigger updates.
// TODO(crbug.com/1169291): Unify screen info plumbing, caching, etc.
#if !BUILDFLAG(IS_MAC)
// This updates Screen attributes and fires Screen.change events as needed,
// propagating to all widgets through the VisualProperties update waterfall.
// This is triggered by system changes, not renderer IPC, so explicitly check
// that the RenderWidgetHostView is valid before sending an update.
if (RenderWidgetHostViewBase* view =
GetRenderViewHost()->GetWidget()->GetView()) {
// Only update top-level views, as child frames will have their ScreenInfos
// updated by the visual property flow.
if (!view->IsRenderWidgetHostViewChildFrame())
view->UpdateScreenInfo();
}
#endif // !BUILDFLAG(IS_MAC)
}
void WebContentsImpl::OnScreenOrientationChange() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::OnScreenOrientationChange");
DCHECK(screen_orientation_provider_);
DidChangeScreenOrientation();
screen_orientation_provider_->OnOrientationChange();
}
absl::optional<SkColor> WebContentsImpl::GetThemeColor() {
return GetPrimaryPage().theme_color();
}
absl::optional<SkColor> WebContentsImpl::GetBackgroundColor() {
return GetPrimaryPage().background_color();
}
void WebContentsImpl::SetPageBaseBackgroundColor(
absl::optional<SkColor> color) {
if (page_base_background_color_ == color)
return;
page_base_background_color_ = color;
ExecutePageBroadcastMethod(base::BindRepeating(
[](absl::optional<SkColor> color, RenderViewHostImpl* rvh) {
// Null `broadcast` can happen before view is created on the renderer
// side, in which case this color will be sent in CreateView.
if (auto& broadcast = rvh->GetAssociatedPageBroadcast())
broadcast->SetPageBaseBackgroundColor(color);
},
page_base_background_color_));
}
void WebContentsImpl::SetColorProviderSource(ui::ColorProviderSource* source) {
ColorProviderSourceObserver::Observe(source);
}
void WebContentsImpl::SetAccessibilityMode(ui::AXMode mode) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::SetAccessibilityMode",
"mode", mode.ToString(), "previous_mode",
accessibility_mode_.ToString());
if (mode == accessibility_mode_)
return;
// Don't allow accessibility to be enabled for WebContents that are never
// user-visible, like background pages.
if (IsNeverComposited())
return;
accessibility_mode_ = mode;
// Update state for all frames in this tree and inner trees. Should also
// include speculative frame hosts.
GetMainFrame()->ForEachRenderFrameHostIncludingSpeculative(
base::BindRepeating(
[](RenderFrameHostImpl* rfhi) { rfhi->UpdateAccessibilityMode(); }));
}
void WebContentsImpl::AddAccessibilityMode(ui::AXMode mode) {
ui::AXMode new_mode(accessibility_mode_);
new_mode |= mode;
SetAccessibilityMode(new_mode);
}
// Helper class used by WebContentsImpl::RequestAXTreeSnapshot.
// Handles the callbacks from parallel snapshot requests to each frame,
// and feeds the results to an AXTreeCombiner, which converts them into a
// single combined accessibility tree.
class AXTreeSnapshotCombiner : public base::RefCounted<AXTreeSnapshotCombiner> {
public:
AXTreeSnapshotCombiner(WebContents::AXTreeSnapshotCallback callback,
mojom::SnapshotAccessibilityTreeParamsPtr params)
: callback_(std::move(callback)), params_(std::move(params)) {}
WebContents::AXTreeSnapshotCallback AddFrame(bool is_root) {
// Adds a reference to |this|.
return base::BindOnce(&AXTreeSnapshotCombiner::ReceiveSnapshot, this,
is_root);
}
void ReceiveSnapshot(bool is_root, const ui::AXTreeUpdate& snapshot) {
combiner_.AddTree(snapshot, is_root);
}
void AXTreeSnapshotOnFrame(RenderFrameHostImpl* rfhi) {
OPTIONAL_TRACE_EVENT0("content",
"AXTreeSnapshotCombiner::AXTreeSnapshotOnFrame");
bool is_root = !rfhi->GetParentOrOuterDocumentOrEmbedder();
rfhi->RequestAXTreeSnapshot(AddFrame(is_root), params_.Clone());
}
private:
friend class base::RefCounted<AXTreeSnapshotCombiner>;
// This is called automatically after the last call to ReceiveSnapshot
// when there are no more references to this object.
~AXTreeSnapshotCombiner() {
combiner_.Combine();
std::move(callback_).Run(combiner_.combined());
}
ui::AXTreeCombiner combiner_;
WebContents::AXTreeSnapshotCallback callback_;
mojom::SnapshotAccessibilityTreeParamsPtr params_;
};
void WebContentsImpl::RequestAXTreeSnapshot(AXTreeSnapshotCallback callback,
ui::AXMode ax_mode,
bool exclude_offscreen,
size_t max_nodes,
base::TimeDelta timeout) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::RequestAXTreeSnapshot",
"mode", ax_mode.ToString());
// Send a request to each of the frames in parallel. Each one will return
// an accessibility tree snapshot, and AXTreeSnapshotCombiner will combine
// them into a single tree and call |callback| with that result, then
// delete |combiner|.
auto params = mojom::SnapshotAccessibilityTreeParams::New();
params->ax_mode = ax_mode.mode();
params->exclude_offscreen = exclude_offscreen;
params->max_nodes = max_nodes;
params->timeout = timeout;
auto combiner = base::MakeRefCounted<AXTreeSnapshotCombiner>(
std::move(callback), std::move(params));
GetMainFrame()->ForEachRenderFrameHost(base::BindRepeating(
&AXTreeSnapshotCombiner::AXTreeSnapshotOnFrame, combiner));
}
void WebContentsImpl::NotifyViewportFitChanged(
blink::mojom::ViewportFit value) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::NotifyViewportFitChanged",
"value", static_cast<int>(value));
observers_.NotifyObservers(&WebContentsObserver::ViewportFitChanged, value);
}
FindRequestManager* WebContentsImpl::GetFindRequestManagerForTesting() {
return GetOrCreateFindRequestManager();
}
void WebContentsImpl::UpdateZoom() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::UpdateZoom");
RenderWidgetHostImpl* rwh = GetRenderViewHost()->GetWidget();
if (rwh->GetView())
rwh->SynchronizeVisualProperties();
}
void WebContentsImpl::UpdateZoomIfNecessary(const std::string& scheme,
const std::string& host) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::UpdateZoomIfNecessary",
"scheme", scheme, "host", host);
NavigationEntry* entry = GetController().GetLastCommittedEntry();
if (!entry)
return;
GURL url = HostZoomMap::GetURLFromEntry(entry);
if (host != net::GetHostOrSpecFromURL(url) ||
(!scheme.empty() && !url.SchemeIs(scheme))) {
return;
}
UpdateZoom();
}
std::vector<WebContentsImpl*> WebContentsImpl::GetWebContentsAndAllInner() {
std::vector<WebContentsImpl*> all_contents(1, this);
for (size_t i = 0; i != all_contents.size(); ++i) {
for (auto* inner_contents : all_contents[i]->GetInnerWebContents()) {
all_contents.push_back(static_cast<WebContentsImpl*>(inner_contents));
}
}
return all_contents;
}
void WebContentsImpl::OnManifestUrlChanged(PageImpl& page) {
absl::optional<GURL> manifest_url = page.GetManifestUrl();
if (!manifest_url.has_value())
return;
if (!page.IsPrimary())
return;
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::NotifyManifestUrlChanged",
"render_frame_host", &page.GetMainDocument(),
"manifest_url", manifest_url);
observers_.NotifyObservers(&WebContentsObserver::DidUpdateWebManifestURL,
&page.GetMainDocument(), *manifest_url);
}
WebUI* WebContentsImpl::GetWebUI() {
return primary_frame_tree_.root()->current_frame_host()->web_ui();
}
// TODO(https://crbug.com/1199697): (MPArch) We should probably iterate all
// FrameTree instances here.
void WebContentsImpl::SetUserAgentOverride(
const blink::UserAgentOverride& ua_override,
bool override_in_new_tabs) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::SetUserAgentOverride",
"ua_override", ua_override.ua_string_override,
"override_in_new_tabs", override_in_new_tabs);
DCHECK(!ua_override.ua_metadata_override.has_value() ||
!ua_override.ua_string_override.empty());
if (GetUserAgentOverride() == ua_override)
return;
if (!ua_override.ua_string_override.empty() &&
!net::HttpUtil::IsValidHeaderValue(ua_override.ua_string_override)) {
return;
}
should_override_user_agent_in_new_tabs_ = override_in_new_tabs;
renderer_preferences_.user_agent_override = ua_override;
// Send the new override string to all renderers in the current page.
SyncRendererPrefs();
// Reload the page if a load is currently in progress to avoid having
// different parts of the page loaded using different user agents.
// No need to reload if the current entry matches that of the
// NavigationRequest supplied to DidStartNavigation() as NavigationRequest
// handles it.
ForEachFrameTree(base::BindRepeating([](FrameTree* frame_tree) {
// For prerendering, we don't want to activate a prerendered page loaded
// with a stale UA and will handle it even if it finishes loading.
if (!frame_tree->IsLoading() && !frame_tree->is_prerendering())
return;
NavigationEntry* entry = frame_tree->controller().GetVisibleEntry();
if (!entry || !entry->GetIsOverridingUserAgent())
return;
if (frame_tree->root()->navigation_request() &&
!frame_tree->root()
->navigation_request()
->ua_change_requires_reload()) {
return;
}
if (frame_tree->is_prerendering()) {
// Just cancel if the FrameTree is for prerendering, as prerendered
// page may not allow another navigation including a reload, depending
// on conditions.
frame_tree->GetMainFrame()->CancelPrerendering(
PrerenderHost::FinalStatus::kUaChangeRequiresReload);
} else {
frame_tree->controller().Reload(ReloadType::BYPASSING_CACHE, true);
}
}));
observers_.NotifyObservers(&WebContentsObserver::UserAgentOverrideSet,
ua_override);
}
void WebContentsImpl::SetRendererInitiatedUserAgentOverrideOption(
NavigationController::UserAgentOverrideOption option) {
OPTIONAL_TRACE_EVENT0(
"content",
"WebContentsImpl::SetRendererInitiatedUserAgentOverrideOption");
renderer_initiated_user_agent_override_option_ = option;
}
const blink::UserAgentOverride& WebContentsImpl::GetUserAgentOverride() {
return renderer_preferences_.user_agent_override;
}
bool WebContentsImpl::ShouldOverrideUserAgentForRendererInitiatedNavigation() {
NavigationEntryImpl* current_entry = GetController().GetLastCommittedEntry();
if (!current_entry || current_entry->IsInitialEntry())
return should_override_user_agent_in_new_tabs_;
switch (renderer_initiated_user_agent_override_option_) {
case NavigationController::UA_OVERRIDE_INHERIT:
return current_entry->GetIsOverridingUserAgent();
case NavigationController::UA_OVERRIDE_TRUE:
return true;
case NavigationController::UA_OVERRIDE_FALSE:
return false;
default:
break;
}
return false;
}
void WebContentsImpl::EnableWebContentsOnlyAccessibilityMode() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::EnableWebContentsOnlyAccessibilityMode");
// If accessibility is already enabled, we'll need to force a reset
// in order to ensure new observers of accessibility events get the
// full accessibility tree from scratch.
bool need_reset = GetAccessibilityMode().has_mode(ui::AXMode::kWebContents);
ui::AXMode desired_mode =
GetContentClient()->browser()->GetAXModeForBrowserContext(
GetBrowserContext());
desired_mode |= ui::kAXModeWebContentsOnly;
AddAccessibilityMode(desired_mode);
// Accessibility mode updates include speculative RFH's as well as any inner
// trees. Iterate across these as we do for SetAccessibilityMode (which is
// called indirectly above via AddAccessibilityMode).
if (need_reset) {
GetMainFrame()->ForEachRenderFrameHostIncludingSpeculative(
base::BindRepeating(
[](RenderFrameHostImpl* rfhi) { rfhi->AccessibilityReset(); }));
}
}
bool WebContentsImpl::IsWebContentsOnlyAccessibilityModeForTesting() {
return accessibility_mode_ == ui::kAXModeWebContentsOnly;
}
bool WebContentsImpl::IsFullAccessibilityModeForTesting() {
return accessibility_mode_ == ui::kAXModeComplete;
}
#if BUILDFLAG(IS_ANDROID)
void WebContentsImpl::SetDisplayCutoutSafeArea(gfx::Insets insets) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SetDisplayCutoutSafeArea");
if (display_cutout_host_impl_)
display_cutout_host_impl_->SetDisplayCutoutSafeArea(insets);
}
#endif
const std::u16string& WebContentsImpl::GetTitle() {
WebUI* our_web_ui =
GetRenderManager()->speculative_frame_host()
? GetRenderManager()->speculative_frame_host()->web_ui()
: GetRenderManager()->current_frame_host()->web_ui();
if (our_web_ui) {
// Don't override the title in view source mode.
NavigationEntry* entry = GetController().GetVisibleEntry();
if (!(entry && entry->IsViewSourceMode())) {
// Give the Web UI the chance to override our title.
const std::u16string& title = our_web_ui->GetOverriddenTitle();
if (!title.empty())
return title;
}
}
NavigationEntry* entry = GetNavigationEntryForTitle();
if (entry)
return entry->GetTitleForDisplay();
// |page_title_when_no_navigation_entry_| is finally used if no title can be
// retrieved.
DCHECK(!blink::features::IsInitialNavigationEntryEnabled());
return page_title_when_no_navigation_entry_;
}
SiteInstanceImpl* WebContentsImpl::GetSiteInstance() {
return GetRenderManager()->current_frame_host()->GetSiteInstance();
}
bool WebContentsImpl::IsLoading() {
return primary_frame_tree_.IsLoading();
}
double WebContentsImpl::GetLoadProgress() {
// TODO(crbug.com/1199682): Make this MPArch friendly considering primary
// frame tree and its descendants.
return primary_frame_tree_.GetLoadProgress();
}
bool WebContentsImpl::ShouldShowLoadingUI() {
return IsLoading() && should_show_loading_ui_;
}
bool WebContentsImpl::IsDocumentOnLoadCompletedInPrimaryMainFrame() {
// TODO(mparch): This should be moved to Page, and callers should use it
// directly.
return GetPrimaryPage().is_on_load_completed_in_main_document();
}
bool WebContentsImpl::IsWaitingForResponse() {
NavigationRequest* ongoing_navigation_request =
primary_frame_tree_.root()->navigation_request();
// An ongoing navigation request means we're waiting for a response.
return ongoing_navigation_request != nullptr;
}
const net::LoadStateWithParam& WebContentsImpl::GetLoadState() {
return load_state_;
}
const std::u16string& WebContentsImpl::GetLoadStateHost() {
return load_state_host_;
}
uint64_t WebContentsImpl::GetUploadSize() {
return upload_size_;
}
uint64_t WebContentsImpl::GetUploadPosition() {
return upload_position_;
}
const std::string& WebContentsImpl::GetEncoding() {
return GetPrimaryPage().GetEncoding();
}
bool WebContentsImpl::WasDiscarded() {
return GetPrimaryFrameTree().root()->was_discarded();
}
void WebContentsImpl::SetWasDiscarded(bool was_discarded) {
// TODO(https://crbug.com/1264031): With MPArch a WebContents might have
// multiple FrameTrees. Should we propagate the was_discarded to all other
// FrameTrees? It seems that was_discarded could be a WebContentsImpl
// property.
GetPrimaryFrameTree().root()->set_was_discarded();
}
base::ScopedClosureRunner WebContentsImpl::IncrementCapturerCount(
const gfx::Size& capture_size,
bool stay_hidden,
bool stay_awake,
bool is_activity) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::IncrementCapturerCount");
DCHECK(!IsBeingDestroyed());
if (stay_hidden) {
// A hidden capture should not have side effect on the web contents, so it
// should not pass a non-empty |capture_size| which will cause side effect.
DCHECK(capture_size.IsEmpty());
++hidden_capturer_count_;
} else {
++visible_capturer_count_;
}
if (stay_awake)
++stay_awake_capturer_count_;
view_->OnCapturerCountChanged();
// Note: This provides a hint to upstream code to size the views optimally
// for quality (e.g., to avoid scaling).
if (!capture_size.IsEmpty() && preferred_size_for_capture_.IsEmpty()) {
preferred_size_for_capture_ = capture_size;
OnPreferredSizeChanged(preferred_size_);
}
if (!capture_wake_lock_ && stay_awake_capturer_count_) {
if (auto* wake_lock_context = GetWakeLockContext()) {
auto receiver = capture_wake_lock_.BindNewPipeAndPassReceiver();
wake_lock_context->GetWakeLock(
device::mojom::WakeLockType::kPreventDisplaySleepAllowDimming,
device::mojom::WakeLockReason::kOther, "Capturing",
std::move(receiver));
}
}
if (capture_wake_lock_)
capture_wake_lock_->RequestWakeLock();
UpdateVisibilityAndNotifyPageAndView(GetVisibility(), is_activity);
return base::ScopedClosureRunner(base::BindOnce(
&WebContentsImpl::DecrementCapturerCount, weak_factory_.GetWeakPtr(),
stay_hidden, stay_awake, is_activity));
}
const blink::mojom::CaptureHandleConfig&
WebContentsImpl::GetCaptureHandleConfig() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
return capture_handle_config_;
}
bool WebContentsImpl::IsBeingCaptured() {
return visible_capturer_count_ + hidden_capturer_count_ > 0;
}
bool WebContentsImpl::IsBeingVisiblyCaptured() {
return visible_capturer_count_ > 0;
}
bool WebContentsImpl::IsAudioMuted() {
return audio_stream_factory_ && audio_stream_factory_->IsMuted();
}
void WebContentsImpl::SetAudioMuted(bool mute) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SetAudioMuted", "mute",
mute);
DVLOG(1) << "SetAudioMuted(mute=" << mute << "), was " << IsAudioMuted()
<< " for WebContentsImpl@" << this;
if (mute == IsAudioMuted())
return;
GetAudioStreamFactory()->SetMuted(mute);
observers_.NotifyObservers(&WebContentsObserver::DidUpdateAudioMutingState,
mute);
// Notification for UI updates in response to the changed muting state.
NotifyNavigationStateChanged(INVALIDATE_TYPE_AUDIO);
}
bool WebContentsImpl::IsCurrentlyAudible() {
return is_currently_audible_;
}
bool WebContentsImpl::IsConnectedToBluetoothDevice() {
return bluetooth_connected_device_count_ > 0;
}
bool WebContentsImpl::IsScanningForBluetoothDevices() {
return bluetooth_scanning_sessions_count_ > 0;
}
bool WebContentsImpl::IsConnectedToSerialPort() {
return serial_active_frame_count_ > 0;
}
bool WebContentsImpl::IsConnectedToHidDevice() {
return hid_active_frame_count_ > 0;
}
bool WebContentsImpl::HasFileSystemAccessHandles() {
return file_system_access_handle_count_ > 0;
}
bool WebContentsImpl::HasPictureInPictureVideo() {
return has_picture_in_picture_video_;
}
bool WebContentsImpl::HasPictureInPictureDocument() {
return has_picture_in_picture_document_;
}
void WebContentsImpl::SetHasPictureInPictureCommon(
bool has_picture_in_picture) {
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
observers_.NotifyObservers(&WebContentsObserver::MediaPictureInPictureChanged,
has_picture_in_picture);
// Picture-in-picture state can affect how we notify visibility for non-
// visible pages.
if (visibility_ != Visibility::VISIBLE)
UpdateVisibilityAndNotifyPageAndView(visibility_);
}
void WebContentsImpl::SetHasPictureInPictureVideo(
bool has_picture_in_picture_video) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::SetHasPictureInPictureVideo",
"has_pip_video", has_picture_in_picture_video);
// If status of |this| is already accurate, there is no need to update.
if (has_picture_in_picture_video == has_picture_in_picture_video_)
return;
has_picture_in_picture_video_ = has_picture_in_picture_video;
SetHasPictureInPictureCommon(has_picture_in_picture_video);
}
void WebContentsImpl::SetHasPictureInPictureDocument(
bool has_picture_in_picture_document) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::SetHasPictureInPictureDocument",
"has_pip_document", has_picture_in_picture_document);
// If status of |this| is already accurate, there is no need to update.
if (has_picture_in_picture_document == has_picture_in_picture_document_)
return;
has_picture_in_picture_document_ = has_picture_in_picture_document;
SetHasPictureInPictureCommon(has_picture_in_picture_document);
}
bool WebContentsImpl::IsCrashed() {
switch (primary_main_frame_process_status_) {
case base::TERMINATION_STATUS_PROCESS_CRASHED:
case base::TERMINATION_STATUS_ABNORMAL_TERMINATION:
case base::TERMINATION_STATUS_PROCESS_WAS_KILLED:
case base::TERMINATION_STATUS_OOM:
case base::TERMINATION_STATUS_LAUNCH_FAILED:
#if BUILDFLAG(IS_CHROMEOS)
case base::TERMINATION_STATUS_PROCESS_WAS_KILLED_BY_OOM:
#endif
#if BUILDFLAG(IS_ANDROID)
case base::TERMINATION_STATUS_OOM_PROTECTED:
#endif
#if BUILDFLAG(IS_WIN)
case base::TERMINATION_STATUS_INTEGRITY_FAILURE:
#endif
return true;
case base::TERMINATION_STATUS_NORMAL_TERMINATION:
case base::TERMINATION_STATUS_STILL_RUNNING:
return false;
case base::TERMINATION_STATUS_MAX_ENUM:
NOTREACHED();
return false;
}
NOTREACHED();
return false;
}
void WebContentsImpl::SetPrimaryMainFrameProcessStatus(
base::TerminationStatus status,
int error_code) {
OPTIONAL_TRACE_EVENT2("content",
"WebContentsImpl::SetPrimaryMainFrameProcessStatus",
"status", static_cast<int>(status), "old_status",
static_cast<int>(primary_main_frame_process_status_));
if (status == primary_main_frame_process_status_)
return;
primary_main_frame_process_status_ = status;
primary_main_frame_process_error_code_ = error_code;
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
}
base::TerminationStatus WebContentsImpl::GetCrashedStatus() {
return primary_main_frame_process_status_;
}
int WebContentsImpl::GetCrashedErrorCode() {
return primary_main_frame_process_error_code_;
}
bool WebContentsImpl::IsBeingDestroyed() {
return is_being_destroyed_;
}
void WebContentsImpl::NotifyNavigationStateChanged(
InvalidateTypes changed_flags) {
TRACE_EVENT1("content,navigation",
"WebContentsImpl::NotifyNavigationStateChanged", "changed_flags",
static_cast<int>(changed_flags));
// Notify the media observer of potential audibility changes.
if (changed_flags & INVALIDATE_TYPE_AUDIO) {
media_web_contents_observer_->MaybeUpdateAudibleState();
}
if (delegate_)
delegate_->NavigationStateChanged(this, changed_flags);
if (GetOuterWebContents())
GetOuterWebContents()->NotifyNavigationStateChanged(changed_flags);
}
void WebContentsImpl::OnVerticalScrollDirectionChanged(
viz::VerticalScrollDirection scroll_direction) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::OnVerticalScrollDirectionChanged",
"scroll_direction", static_cast<int>(scroll_direction));
observers_.NotifyObservers(
&WebContentsObserver::DidChangeVerticalScrollDirection, scroll_direction);
}
void WebContentsImpl::OnAudioStateChanged() {
// This notification can come from any embedded contents or from this
// WebContents' stream monitor. Aggregate these signals to get the actual
// state.
//
// Note that guests may not be attached as inner contents, and so may need to
// be checked separately.
bool is_currently_audible =
audio_stream_monitor_.IsCurrentlyAudible() ||
(browser_plugin_embedder_ &&
browser_plugin_embedder_->AreAnyGuestsCurrentlyAudible()) ||
AnyInnerWebContents(this, [](WebContents* inner_contents) {
return inner_contents->IsCurrentlyAudible();
});
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::OnAudioStateChanged",
"is_currently_audible", is_currently_audible,
"was_audible", is_currently_audible_);
if (is_currently_audible == is_currently_audible_)
return;
// Update internal state.
is_currently_audible_ = is_currently_audible;
was_ever_audible_ = was_ever_audible_ || is_currently_audible_;
audible_power_mode_voter_->VoteFor(is_currently_audible_
? power_scheduler::PowerMode::kAudible
: power_scheduler::PowerMode::kIdle);
ExecutePageBroadcastMethod(base::BindRepeating(
[](bool is_currently_audible, RenderViewHostImpl* rvh) {
if (auto& broadcast = rvh->GetAssociatedPageBroadcast())
broadcast->AudioStateChanged(is_currently_audible);
},
is_currently_audible_));
// Notification for UI updates in response to the changed audio state.
NotifyNavigationStateChanged(INVALIDATE_TYPE_AUDIO);
// Ensure that audio state changes propagate from innermost to outermost
// WebContents.
if (GetOuterWebContents())
GetOuterWebContents()->OnAudioStateChanged();
observers_.NotifyObservers(&WebContentsObserver::OnAudioStateChanged,
is_currently_audible_);
}
base::TimeTicks WebContentsImpl::GetLastActiveTime() {
return last_active_time_;
}
void WebContentsImpl::WasShown() {
TRACE_EVENT0("content", "WebContentsImpl::WasShown");
UpdateVisibilityAndNotifyPageAndView(Visibility::VISIBLE);
}
void WebContentsImpl::WasHidden() {
TRACE_EVENT0("content", "WebContentsImpl::WasHidden");
UpdateVisibilityAndNotifyPageAndView(Visibility::HIDDEN);
}
bool WebContentsImpl::HasRecentInteractiveInputEvent() {
static constexpr base::TimeDelta kMaxInterval = base::Seconds(5);
base::TimeDelta delta =
ui::EventTimeForNow() - last_interactive_input_event_time_;
// Note: the expectation is that the caller is typically expecting an input
// event, e.g. validating that a WebUI message that requires a gesture is
// actually attached to a gesture.
return delta <= kMaxInterval;
}
void WebContentsImpl::SetIgnoreInputEvents(bool ignore_input_events) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SetIgnoreInputEvents",
"ignore_input_events", ignore_input_events);
ignore_input_events_ = ignore_input_events;
}
bool WebContentsImpl::HasActiveEffectivelyFullscreenVideo() {
return IsFullscreen() &&
media_web_contents_observer_->HasActiveEffectivelyFullscreenVideo();
}
void WebContentsImpl::WriteIntoTrace(perfetto::TracedValue context) {
auto dict = std::move(context).WriteDictionary();
dict.Add("root_frame_tree_node_id",
primary_frame_tree_.root()->frame_tree_node_id());
}
const base::Location& WebContentsImpl::GetCreatorLocation() {
return creator_location_;
}
#if BUILDFLAG(IS_ANDROID)
void WebContentsImpl::SetPrimaryMainFrameImportance(
ChildProcessImportance importance) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SetMainFrameImportance",
"importance", static_cast<int>(importance));
GetMainFrame()->GetRenderWidgetHost()->SetImportance(importance);
}
#endif
void WebContentsImpl::WasOccluded() {
TRACE_EVENT0("content", "WebContentsImpl::WasOccluded");
UpdateVisibilityAndNotifyPageAndView(Visibility::OCCLUDED);
}
Visibility WebContentsImpl::GetVisibility() {
return visibility_;
}
bool WebContentsImpl::NeedToFireBeforeUnloadOrUnloadEvents() {
if (!notify_disconnection_)
return false;
// Don't fire if the main frame's RenderViewHost indicates that beforeunload
// and unload have already executed (e.g., after receiving a ClosePage ACK)
// or should be ignored.
if (GetRenderViewHost()->SuddenTerminationAllowed())
return false;
// Check whether any frame in the frame tree needs to run beforeunload or
// unload-time event handlers.
for (FrameTreeNode* node : primary_frame_tree_.Nodes()) {
RenderFrameHostImpl* rfh = node->current_frame_host();
// No need to run beforeunload/unload-time events if the RenderFrame isn't
// live.
if (!rfh->IsRenderFrameLive())
continue;
bool should_run_before_unload_handler =
rfh->GetSuddenTerminationDisablerState(
blink::mojom::SuddenTerminationDisablerType::kBeforeUnloadHandler);
bool should_run_unload_handler = rfh->GetSuddenTerminationDisablerState(
blink::mojom::SuddenTerminationDisablerType::kUnloadHandler);
bool should_run_page_hide_handler = rfh->GetSuddenTerminationDisablerState(
blink::mojom::SuddenTerminationDisablerType::kPageHideHandler);
auto* rvh = static_cast<RenderViewHostImpl*>(rfh->GetRenderViewHost());
// If the tab is already hidden, we should not run visibilitychange
// handlers.
bool is_page_visible = rvh->GetPageLifecycleStateManager()
->CalculatePageLifecycleState()
->visibility == PageVisibilityState::kVisible;
bool should_run_visibility_change_handler =
is_page_visible && rfh->GetSuddenTerminationDisablerState(
blink::mojom::SuddenTerminationDisablerType::
kVisibilityChangeHandler);
if (should_run_before_unload_handler || should_run_unload_handler ||
should_run_page_hide_handler || should_run_visibility_change_handler) {
return true;
}
}
return false;
}
void WebContentsImpl::DispatchBeforeUnload(bool auto_cancel) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::DispatchBeforeUnload",
"auto_cancel", auto_cancel);
auto before_unload_type =
auto_cancel ? RenderFrameHostImpl::BeforeUnloadType::DISCARD
: RenderFrameHostImpl::BeforeUnloadType::TAB_CLOSE;
GetMainFrame()->DispatchBeforeUnload(before_unload_type, false);
}
bool WebContentsImpl::IsInnerWebContentsForGuest() {
return IsGuest();
}
void WebContentsImpl::AttachInnerWebContents(
std::unique_ptr<WebContents> inner_web_contents,
RenderFrameHost* render_frame_host,
bool is_full_page) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::AttachInnerWebContents",
"inner_web_contents",
static_cast<void*>(inner_web_contents.get()),
"is_full_page", is_full_page);
WebContentsImpl* inner_web_contents_impl =
static_cast<WebContentsImpl*>(inner_web_contents.get());
DCHECK(!inner_web_contents_impl->node_.outer_web_contents());
auto* render_frame_host_impl =
static_cast<RenderFrameHostImpl*>(render_frame_host);
DCHECK_EQ(this, WebContents::FromRenderFrameHost(render_frame_host_impl));
DCHECK(render_frame_host_impl->GetParent());
RenderFrameHostManager* inner_render_manager =
inner_web_contents_impl->GetRenderManager();
RenderFrameHostImpl* inner_main_frame =
inner_render_manager->current_frame_host();
RenderViewHostImpl* inner_render_view_host =
inner_main_frame->render_view_host();
auto* outer_render_manager =
render_frame_host_impl->frame_tree_node()->render_manager();
// Make |render_frame_host_impl| an outer delegate frame.
render_frame_host_impl->set_inner_tree_main_frame_tree_node_id(
inner_main_frame->frame_tree_node()->frame_tree_node_id());
// When attaching a WebContents as an inner WebContents, we need to replace
// the Webcontents' view with a WebContentsViewChildFrame.
inner_web_contents_impl->view_ = std::make_unique<WebContentsViewChildFrame>(
inner_web_contents_impl,
GetContentClient()->browser()->GetWebContentsViewDelegate(
inner_web_contents_impl),
&inner_web_contents_impl->render_view_host_delegate_view_);
// On platforms where destroying the WebContents' view does not also destroy
// the platform RenderWidgetHostView, we need to destroy it if it exists.
// TODO(mcnee): Should all platforms' WebContentsView destroy the platform
// RWHV?
if (RenderWidgetHostViewBase* prev_rwhv =
inner_render_manager->GetRenderWidgetHostView()) {
if (!prev_rwhv->IsRenderWidgetHostViewChildFrame()) {
prev_rwhv->Destroy();
}
}
// When the WebContents being initialized has an opener, the browser side
// Render{View,Frame}Host must be initialized and the RenderWidgetHostView
// created. This is needed because the usual initialization happens during
// the first navigation, but when attaching a new window we don't navigate
// before attaching. If the browser side is already initialized, the calls
// below will just early return.
inner_render_manager->InitRenderView(
inner_main_frame->GetSiteInstance()->group(), inner_render_view_host,
nullptr);
if (!inner_render_manager->GetRenderWidgetHostView()) {
inner_web_contents_impl->CreateRenderWidgetHostViewForRenderManager(
inner_render_view_host);
}
inner_web_contents_impl->RecursivelyUnregisterRenderWidgetHostViews();
// Create a link to our outer WebContents.
node_.AttachInnerWebContents(std::move(inner_web_contents),
render_frame_host_impl);
// Create a proxy in top-level RenderFrameHostManager, pointing to the
// SiteInstance of the outer WebContents. The proxy will be used to send
// postMessage to the inner WebContents.
auto* proxy =
inner_main_frame->browsing_context_state()->CreateOuterDelegateProxy(
render_frame_host_impl->GetSiteInstance(),
inner_main_frame->frame_tree_node());
// When attaching a GuestView as an inner WebContents, there should already be
// a live RenderFrame, which has to be swapped. When attaching a portal, there
// will not be a live RenderFrame before creating the proxy.
if (render_frame_host_impl->IsRenderFrameLive()) {
inner_render_manager->SwapOuterDelegateFrame(render_frame_host_impl, proxy);
inner_web_contents_impl->ReattachToOuterWebContentsFrame();
}
if (primary_frame_tree_.GetFocusedFrame() ==
render_frame_host_impl->frame_tree_node()) {
inner_web_contents_impl->SetFocusedFrame(
inner_web_contents_impl->primary_frame_tree_.root(),
render_frame_host_impl->GetSiteInstance()->group());
}
outer_render_manager->set_attach_complete();
// If the inner WebContents is full frame, give it focus.
if (is_full_page) {
// There should only ever be one inner WebContents when |is_full_page| is
// true, and it is the one we just attached.
DCHECK_EQ(1u, node_.GetInnerWebContents().size());
inner_web_contents_impl->SetAsFocusedWebContentsIfNecessary();
}
observers_.NotifyObservers(&WebContentsObserver::InnerWebContentsAttached,
inner_web_contents_impl, render_frame_host,
is_full_page);
// Make sure that the inner web contents and its outer delegate get properly
// linked via the embedding token now that inner web contents are attached.
inner_main_frame->PropagateEmbeddingTokenToParentFrame();
}
std::unique_ptr<WebContents> WebContentsImpl::DetachFromOuterWebContents() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::DetachFromOuterWebContents");
auto* outer_web_contents = GetOuterWebContents();
DCHECK(outer_web_contents);
GetMainFrame()
->GetParentOrOuterDocumentOrEmbedder()
->set_inner_tree_main_frame_tree_node_id(
FrameTreeNode::kFrameTreeNodeInvalidId);
RecursivelyUnregisterRenderWidgetHostViews();
// Each RenderViewHost has a RenderWidgetHost which can have a
// RenderWidgetHostView, and it needs to be re-created with the appropriate
// platform view. It is important to re-create all child views, not only the
// current one, since the view can be swapped due to a cross-origin
// navigation.
std::set<RenderViewHostImpl*> render_view_hosts;
// TODO(https://crbug.com/1264031): With MPArch a WebContents might have
// multiple FrameTrees. This code probably needs to be rewritten: e.g. we will
// need to iterate over all RenderViewHosts when detaching fenced frames
// nested within a GuestView.
for (auto& render_view_host : GetPrimaryFrameTree().render_view_hosts()) {
if (render_view_host.second->GetWidget() &&
render_view_host.second->GetWidget()->GetView()) {
DCHECK(render_view_host.second->GetWidget()
->GetView()
->IsRenderWidgetHostViewChildFrame());
render_view_hosts.insert(render_view_host.second);
}
}
for (auto* render_view_host : render_view_hosts)
render_view_host->GetWidget()->GetView()->Destroy();
GetRenderManager()
->current_frame_host()
->browsing_context_state()
->DeleteOuterDelegateProxy(node_.OuterContentsFrameTreeNode()
->current_frame_host()
->GetSiteInstance()
->group());
view_ = CreateWebContentsView(
this, GetContentClient()->browser()->GetWebContentsViewDelegate(this),
&render_view_host_delegate_view_);
view_->CreateView(nullptr);
std::unique_ptr<WebContents> web_contents =
node_.DisconnectFromOuterWebContents();
DCHECK_EQ(web_contents.get(), this);
node_.SetFocusedFrameTree(&GetPrimaryFrameTree());
for (auto* render_view_host : render_view_hosts)
CreateRenderWidgetHostViewForRenderManager(render_view_host);
RecursivelyRegisterRenderWidgetHostViews();
GetMainFrame()->UpdateAXTreeData();
// Invoke on the *outer* web contents observers for symmetry.
outer_web_contents->observers_.NotifyObservers(
&WebContentsObserver::InnerWebContentsDetached, this);
return web_contents;
}
void WebContentsImpl::RecursivelyRegisterRenderWidgetHostViews() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::RecursivelyRegisterRenderWidgetHostViews");
auto* text_input_manager = GetTextInputManager();
for (auto* view : GetRenderWidgetHostViewsInWebContentsTree()) {
if (text_input_manager) {
// Use RenderWidgetHostView::GetTextInputManager() for its side effects,
// rather than registering the view directly; the view caches the
// TextInputManager.
//
// TODO(crbug.com/1292036): This probably could be made more symmetrical
// with unregistration. Getting rid of lazy registration might also allow
// eliminating some special cases in TextInputManager.
auto* text_input_manager_for_view = view->GetTextInputManager();
DCHECK_EQ(text_input_manager, text_input_manager_for_view);
}
if (view->IsRenderWidgetHostViewChildFrame())
static_cast<RenderWidgetHostViewChildFrame*>(view)->RegisterFrameSinkId();
}
}
void WebContentsImpl::RecursivelyUnregisterRenderWidgetHostViews() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::RecursivelyUnregisterRenderWidgetHostViews");
auto* text_input_manager = GetTextInputManager();
for (auto* view : GetRenderWidgetHostViewsInWebContentsTree()) {
if (text_input_manager) {
// The RenderWidgetHostView will drop the cached TextInputManager itself.
text_input_manager->Unregister(view);
}
if (view->IsRenderWidgetHostViewChildFrame()) {
static_cast<RenderWidgetHostViewChildFrame*>(view)
->UnregisterFrameSinkId();
}
}
}
void WebContentsImpl::ReattachToOuterWebContentsFrame() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::ReattachToOuterWebContentsFrame");
DCHECK(node_.outer_web_contents());
auto* render_manager = GetRenderManager();
auto* child_rwhv = render_manager->GetRenderWidgetHostView();
DCHECK(child_rwhv);
DCHECK(child_rwhv->IsRenderWidgetHostViewChildFrame());
render_manager->SetRWHViewForInnerFrameTree(
static_cast<RenderWidgetHostViewChildFrame*>(child_rwhv));
RecursivelyRegisterRenderWidgetHostViews();
GetMainFrame()->UpdateAXTreeData();
}
void WebContentsImpl::DidActivatePortal(
WebContentsImpl* predecessor_web_contents,
base::TimeTicks activation_time) {
TRACE_EVENT2("content", "WebContentsImpl::DidActivatePortal", "predecessor",
static_cast<void*>(predecessor_web_contents), "activation_time",
activation_time);
DCHECK(predecessor_web_contents);
NotifyInsidePortal(false);
observers_.NotifyObservers(&WebContentsObserver::DidActivatePortal,
predecessor_web_contents, activation_time);
GetDelegate()->WebContentsBecamePortal(predecessor_web_contents);
}
void WebContentsImpl::NotifyInsidePortal(bool inside_portal) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::NotifyInsidePortal",
"inside_portal", inside_portal);
ExecutePageBroadcastMethod(base::BindRepeating(
[](bool inside_portal, RenderViewHostImpl* rvh) {
if (auto& broadcast = rvh->GetAssociatedPageBroadcast())
broadcast->SetInsidePortal(inside_portal);
},
inside_portal));
}
void WebContentsImpl::DidChangeVisibleSecurityState() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::DidChangeVisibleSecurityState");
if (delegate_)
delegate_->VisibleSecurityStateChanged(this);
SCOPED_UMA_HISTOGRAM_TIMER(
"WebContentsObserver.DidChangeVisibleSecurityState");
observers_.NotifyObservers(
&WebContentsObserver::DidChangeVisibleSecurityState);
}
const blink::web_pref::WebPreferences WebContentsImpl::ComputeWebPreferences() {
OPTIONAL_TRACE_EVENT0("browser", "WebContentsImpl::ComputeWebPreferences");
blink::web_pref::WebPreferences prefs;
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
SetSlowWebPreferences(command_line, &prefs);
prefs.web_security_enabled =
!command_line.HasSwitch(switches::kDisableWebSecurity);
prefs.remote_fonts_enabled =
!command_line.HasSwitch(switches::kDisableRemoteFonts);
prefs.local_storage_enabled =
!command_line.HasSwitch(switches::kDisableLocalStorage);
prefs.databases_enabled =
!command_line.HasSwitch(switches::kDisableDatabases);
prefs.webgl1_enabled = !command_line.HasSwitch(switches::kDisable3DAPIs) &&
!command_line.HasSwitch(switches::kDisableWebGL);
prefs.webgl2_enabled = !command_line.HasSwitch(switches::kDisable3DAPIs) &&
!command_line.HasSwitch(switches::kDisableWebGL) &&
!command_line.HasSwitch(switches::kDisableWebGL2);
prefs.pepper_3d_enabled = !command_line.HasSwitch(switches::kDisablePepper3d);
prefs.allow_file_access_from_file_urls =
command_line.HasSwitch(switches::kAllowFileAccessFromFiles);
prefs.accelerated_2d_canvas_enabled =
!command_line.HasSwitch(switches::kDisableAccelerated2dCanvas);
prefs.canvas_2d_layers_enabled =
command_line.HasSwitch(switches::kEnableCanvas2DLayers) ||
base::FeatureList::IsEnabled(features::kEnableCanvas2DLayers);
prefs.antialiased_2d_canvas_disabled =
command_line.HasSwitch(switches::kDisable2dCanvasAntialiasing);
prefs.antialiased_clips_2d_canvas_enabled =
!command_line.HasSwitch(switches::kDisable2dCanvasClipAntialiasing);
prefs.disable_ipc_flooding_protection =
command_line.HasSwitch(switches::kDisableIpcFloodingProtection) ||
command_line.HasSwitch(switches::kDisablePushStateThrottle);
prefs.accelerated_video_decode_enabled =
!command_line.HasSwitch(switches::kDisableAcceleratedVideoDecode);
std::string autoplay_policy = media::GetEffectiveAutoplayPolicy(command_line);
if (autoplay_policy == switches::autoplay::kNoUserGestureRequiredPolicy) {
prefs.autoplay_policy =
blink::mojom::AutoplayPolicy::kNoUserGestureRequired;
} else if (autoplay_policy ==
switches::autoplay::kUserGestureRequiredPolicy) {
prefs.autoplay_policy = blink::mojom::AutoplayPolicy::kUserGestureRequired;
} else if (autoplay_policy ==
switches::autoplay::kDocumentUserActivationRequiredPolicy) {
prefs.autoplay_policy =
blink::mojom::AutoplayPolicy::kDocumentUserActivationRequired;
} else {
NOTREACHED();
}
prefs.dont_send_key_events_to_javascript =
base::FeatureList::IsEnabled(features::kDontSendKeyEventsToJavascript);
// TODO(dtapuska): Enable barrel button selection drag support on Android.
// crbug.com/758042
#if BUILDFLAG(IS_WIN)
prefs.barrel_button_for_drag_enabled = true;
#endif // BUILDFLAG(IS_WIN)
prefs.enable_scroll_animator =
command_line.HasSwitch(switches::kEnableSmoothScrolling) ||
(!command_line.HasSwitch(switches::kDisableSmoothScrolling) &&
gfx::Animation::ScrollAnimationsEnabledBySystem());
prefs.prefers_reduced_motion = gfx::Animation::PrefersReducedMotion();
if (ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
GetRenderViewHost()->GetProcess()->GetID())) {
prefs.loads_images_automatically = true;
prefs.javascript_enabled = true;
}
prefs.viewport_enabled = command_line.HasSwitch(switches::kEnableViewport);
prefs.threaded_scrolling_enabled =
!command_line.HasSwitch(blink::switches::kDisableThreadedScrolling);
if (GetController().GetVisibleEntry() &&
GetController().GetVisibleEntry()->GetIsOverridingUserAgent()) {
#if BUILDFLAG(IS_ANDROID)
// Only ignore viewport meta tag when Request Desktop Site is used, but not
// in other situations where embedder changes to arbitrary mobile UA string.
if (renderer_preferences_.user_agent_override.ua_metadata_override &&
!renderer_preferences_.user_agent_override.ua_metadata_override->mobile)
#endif
prefs.viewport_meta_enabled = false;
}
prefs.spatial_navigation_enabled =
command_line.HasSwitch(switches::kEnableSpatialNavigation);
if (is_spatial_navigation_disabled_)
prefs.spatial_navigation_enabled = false;
prefs.disable_reading_from_canvas =
command_line.HasSwitch(switches::kDisableReadingFromCanvas);
prefs.strict_mixed_content_checking =
command_line.HasSwitch(switches::kEnableStrictMixedContentChecking);
prefs.strict_powerful_feature_restrictions = command_line.HasSwitch(
switches::kEnableStrictPowerfulFeatureRestrictions);
prefs.fake_no_alloc_direct_call_for_testing_enabled =
command_line.HasSwitch(switches::kEnableFakeNoAllocDirectCallForTesting);
const std::string blockable_mixed_content_group =
base::FieldTrialList::FindFullName("BlockableMixedContent");
prefs.strictly_block_blockable_mixed_content =
blockable_mixed_content_group == "StrictlyBlockBlockableMixedContent";
const std::string plugin_mixed_content_status =
base::FieldTrialList::FindFullName("PluginMixedContentStatus");
prefs.block_mixed_plugin_content =
plugin_mixed_content_status == "BlockableMixedContent";
prefs.v8_cache_options = GetV8CacheOptions();
prefs.user_gesture_required_for_presentation = !command_line.HasSwitch(
switches::kDisableGestureRequirementForPresentation);
if (is_overlay_content_)
prefs.hide_download_ui = true;
// `media_controls_enabled` is `true` by default.
if (has_persistent_video_)
prefs.media_controls_enabled = false;
#if BUILDFLAG(IS_ANDROID)
display::Display display = display::Screen::GetScreen()->GetPrimaryDisplay();
gfx::Size size = display.GetSizeInPixel();
int min_width = size.width() < size.height() ? size.width() : size.height();
prefs.device_scale_adjustment = GetDeviceScaleAdjustment(
static_cast<int>(min_width / display.device_scale_factor()));
#endif // BUILDFLAG(IS_ANDROID)
GetContentClient()->browser()->OverrideWebkitPrefs(this, &prefs);
return prefs;
}
void WebContentsImpl::SetSlowWebPreferences(
const base::CommandLine& command_line,
blink::web_pref::WebPreferences* prefs) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SetSlowWebPreferences");
if (web_preferences_.get()) {
#define SET_FROM_CACHE(prefs, field) prefs->field = web_preferences_->field
SET_FROM_CACHE(prefs, touch_event_feature_detection_enabled);
SET_FROM_CACHE(prefs, available_pointer_types);
SET_FROM_CACHE(prefs, available_hover_types);
SET_FROM_CACHE(prefs, primary_pointer_type);
SET_FROM_CACHE(prefs, primary_hover_type);
SET_FROM_CACHE(prefs, pointer_events_max_touch_points);
SET_FROM_CACHE(prefs, number_of_cpu_cores);
#if BUILDFLAG(IS_ANDROID)
SET_FROM_CACHE(prefs, video_fullscreen_orientation_lock_enabled);
SET_FROM_CACHE(prefs, video_rotate_to_fullscreen_enabled);
#endif
#undef SET_FROM_CACHE
} else {
// Every prefs->field modified below should have a SET_FROM_CACHE entry
// above.
// On Android, Touch event feature detection is enabled by default,
// Otherwise default is disabled.
std::string touch_enabled_default_switch =
switches::kTouchEventFeatureDetectionDisabled;
#if BUILDFLAG(IS_ANDROID)
touch_enabled_default_switch = switches::kTouchEventFeatureDetectionEnabled;
#endif // BUILDFLAG(IS_ANDROID)
const std::string touch_enabled_switch =
command_line.HasSwitch(switches::kTouchEventFeatureDetection)
? command_line.GetSwitchValueASCII(
switches::kTouchEventFeatureDetection)
: touch_enabled_default_switch;
prefs->touch_event_feature_detection_enabled =
(touch_enabled_switch == switches::kTouchEventFeatureDetectionAuto)
? (ui::GetTouchScreensAvailability() ==
ui::TouchScreensAvailability::ENABLED)
: (touch_enabled_switch.empty() ||
touch_enabled_switch ==
switches::kTouchEventFeatureDetectionEnabled);
std::tie(prefs->available_pointer_types, prefs->available_hover_types) =
GetAvailablePointerAndHoverTypes();
prefs->primary_pointer_type = static_cast<blink::mojom::PointerType>(
ui::GetPrimaryPointerType(prefs->available_pointer_types));
prefs->primary_hover_type = static_cast<blink::mojom::HoverType>(
ui::GetPrimaryHoverType(prefs->available_hover_types));
prefs->pointer_events_max_touch_points = ui::MaxTouchPoints();
prefs->number_of_cpu_cores = base::SysInfo::NumberOfProcessors();
#if BUILDFLAG(IS_ANDROID)
const bool device_is_phone =
ui::GetDeviceFormFactor() == ui::DEVICE_FORM_FACTOR_PHONE;
prefs->video_fullscreen_orientation_lock_enabled = device_is_phone;
prefs->video_rotate_to_fullscreen_enabled = device_is_phone;
#endif
}
}
void WebContentsImpl::OnWebPreferencesChanged() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::OnWebPreferencesChanged");
// This is defensive code to avoid infinite loops due to code run inside
// SetWebPreferences() accidentally updating more preferences and thus
// calling back into this code. See crbug.com/398751 for one past example.
if (updating_web_preferences_)
return;
updating_web_preferences_ = true;
SetWebPreferences(ComputeWebPreferences());
#if BUILDFLAG(IS_ANDROID)
for (FrameTreeNode* node : primary_frame_tree_.Nodes()) {
RenderFrameHostImpl* rfh = node->current_frame_host();
if (rfh->is_local_root()) {
if (auto* rwh = rfh->GetRenderWidgetHost())
rwh->SetForceEnableZoom(web_preferences_->force_enable_zoom);
}
}
#endif
updating_web_preferences_ = false;
}
void WebContentsImpl::NotifyPreferencesChanged() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::NotifyPreferencesChanged");
// Recompute the WebPreferences based on the current state of the WebContents,
// etc. Note that OnWebPreferencesChanged will also call SetWebPreferences and
// send the updated WebPreferences to all RenderViews for this WebContents.
OnWebPreferencesChanged();
}
void WebContentsImpl::SyncRendererPrefs() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SyncRendererPrefs");
blink::RendererPreferences renderer_preferences = GetRendererPrefs();
RenderViewHostImpl::GetPlatformSpecificPrefs(&renderer_preferences);
ExecutePageBroadcastMethodForAllPages(base::BindRepeating(
[](const blink::RendererPreferences& preferences,
RenderViewHostImpl* rvh) {
rvh->SendRendererPreferencesToRenderer(preferences);
},
renderer_preferences));
}
void WebContentsImpl::OnCookiesAccessed(NavigationHandle* navigation,
const CookieAccessDetails& details) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnCookiesAccessed",
"navigation_handle", navigation);
// Use a variable to select between overloads.
void (WebContentsObserver::*func)(NavigationHandle*,
const CookieAccessDetails&) =
&WebContentsObserver::OnCookiesAccessed;
observers_.NotifyObservers(func, navigation, details);
}
void WebContentsImpl::OnCookiesAccessed(RenderFrameHostImpl* rfh,
const CookieAccessDetails& details) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnCookiesAccessed",
"render_frame_host", rfh);
// Use a variable to select between overloads.
void (WebContentsObserver::*func)(RenderFrameHost*,
const CookieAccessDetails&) =
&WebContentsObserver::OnCookiesAccessed;
observers_.NotifyObservers(func, rfh, details);
}
void WebContentsImpl::Stop() {
TRACE_EVENT0("content", "WebContentsImpl::Stop");
ForEachFrameTree(base::BindRepeating(
[](FrameTree* frame_tree) { frame_tree->StopLoading(); }));
if (blink::features::IsPrerender2Enabled()) {
GetPrerenderHostRegistry()->CancelAllHosts(
PrerenderHost::FinalStatus::kStop);
}
observers_.NotifyObservers(&WebContentsObserver::NavigationStopped);
}
void WebContentsImpl::SetPageFrozen(bool frozen) {
TRACE_EVENT1("content", "WebContentsImpl::SetPageFrozen", "frozen", frozen);
// A visible page is never frozen.
DCHECK_NE(Visibility::VISIBLE, GetVisibility());
for (auto& entry : primary_frame_tree_.render_view_hosts()) {
entry.second->SetIsFrozen(frozen);
}
}
std::unique_ptr<WebContents> WebContentsImpl::Clone() {
TRACE_EVENT0("content", "WebContentsImpl::Clone");
// We use our current SiteInstance since the cloned entry will use it anyway.
// We pass our own opener so that the cloned page can access it if it was set
// before.
CreateParams create_params(GetBrowserContext(), GetSiteInstance());
FrameTreeNode* opener = primary_frame_tree_.root()->opener();
RenderFrameHostImpl* opener_rfh = nullptr;
if (opener)
opener_rfh = opener->current_frame_host();
std::unique_ptr<WebContentsImpl> tc =
CreateWithOpener(create_params, opener_rfh);
tc->GetController().CopyStateFrom(&primary_frame_tree_.controller(), true);
observers_.NotifyObservers(&WebContentsObserver::DidCloneToNewWebContents,
this, tc.get());
return tc;
}
WebContents* WebContentsImpl::DeprecatedGetWebContents() {
return this;
}
void WebContentsImpl::Init(const WebContents::CreateParams& params,
blink::FramePolicy primary_main_frame_policy) {
TRACE_EVENT0("content", "WebContentsImpl::Init");
creator_location_ = params.creator_location;
// This is set before initializing the render manager since
// RenderFrameHostManager::Init calls back into us via its delegate to ask if
// it should be hidden.
visibility_ =
params.initially_hidden ? Visibility::HIDDEN : Visibility::VISIBLE;
enable_wake_locks_ = params.enable_wake_locks;
if (!params.last_active_time.is_null())
last_active_time_ = params.last_active_time;
scoped_refptr<SiteInstance> site_instance = params.site_instance;
if (!site_instance)
site_instance = SiteInstance::Create(params.browser_context);
if (params.desired_renderer_state == CreateParams::kNoRendererProcess) {
static_cast<SiteInstanceImpl*>(site_instance.get())
->PreventAssociationWithSpareProcess();
}
// Iniitalize the primary FrameTree.
// Note that GetOpener() is used here to get the opener for origin
// inheritance, instead of other similar functions:
// - GetOriginalOpener(), which would always return the main frame of the
// opener, which might be different from the actual opener.
// - FindOpenerRFH(), which will still return the opener frame if the
// opener is suppressed (e.g. due to 'noopener'). The opener should not
// be used for origin inheritance purposes in those cases, so this should
// not pass the opener for those cases.
primary_frame_tree_.Init(
site_instance.get(), params.renderer_initiated_creation,
params.main_frame_name, GetOpener(), primary_main_frame_policy);
std::unique_ptr<WebContentsViewDelegate> delegate =
GetContentClient()->browser()->GetWebContentsViewDelegate(this);
if (browser_plugin_guest_) {
view_ = std::make_unique<WebContentsViewChildFrame>(
this, std::move(delegate), &render_view_host_delegate_view_);
} else {
view_ = CreateWebContentsView(this, std::move(delegate),
&render_view_host_delegate_view_);
}
CHECK(render_view_host_delegate_view_);
CHECK(view_.get());
view_->CreateView(params.context);
screen_orientation_provider_ =
std::make_unique<ScreenOrientationProvider>(this);
#if BUILDFLAG(IS_ANDROID)
DateTimeChooserAndroid::CreateForWebContents(this);
#endif
// BrowserPluginGuest::Init needs to be called after this WebContents has
// a RenderWidgetHostViewChildFrame. That is, |view_->CreateView| above.
if (browser_plugin_guest_)
browser_plugin_guest_->Init();
for (auto& i : g_created_callbacks.Get())
i.Run(this);
// Create the renderer process in advance if requested.
if (params.desired_renderer_state ==
CreateParams::kInitializeAndWarmupRendererProcess) {
if (!GetRenderManager()->current_frame_host()->IsRenderFrameLive()) {
GetRenderManager()->InitRenderView(
static_cast<SiteInstanceImpl*>(site_instance.get())->group(),
GetRenderViewHost(), nullptr);
}
}
// Let the embedder know about the newly created and initialized WebContents.
GetContentClient()->browser()->OnWebContentsCreated(this);
// Ensure that observers are notified of the creation of this WebContents's
// main RenderFrameHost. It must be done here for main frames, since the
// NotifySwappedFromRenderManager expects view_ to already be created and that
// happens after RenderFrameHostManager::Init.
NotifySwappedFromRenderManager(nullptr,
GetRenderManager()->current_frame_host());
}
void WebContentsImpl::OnWebContentsDestroyed(WebContentsImpl* web_contents) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::OnWebContentsDestroyed");
RemoveWebContentsDestructionObserver(web_contents);
// Clear a pending contents that has been closed before being shown.
for (auto iter = pending_contents_.begin(); iter != pending_contents_.end();
++iter) {
if (iter->second.contents.get() != web_contents)
continue;
// Someone else has deleted the WebContents. That should never happen!
// TODO(erikchen): Fix semantics here. https://crbug.com/832879.
iter->second.contents.release();
pending_contents_.erase(iter);
return;
}
NOTREACHED();
}
void WebContentsImpl::OnRenderWidgetHostDestroyed(
RenderWidgetHost* render_widget_host) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::OnWebContentsDestroyed");
RemoveRenderWidgetHostDestructionObserver(render_widget_host);
// Clear a pending widget that has been closed before being shown.
size_t num_erased =
base::EraseIf(pending_widgets_, [render_widget_host](const auto& pair) {
return pair.second == render_widget_host;
});
DCHECK_EQ(1u, num_erased);
}
void WebContentsImpl::AddWebContentsDestructionObserver(
WebContentsImpl* web_contents) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::AddWebContentsDestructionObserver");
if (!base::Contains(web_contents_destruction_observers_, web_contents)) {
web_contents_destruction_observers_[web_contents] =
std::make_unique<WebContentsDestructionObserver>(this, web_contents);
}
}
void WebContentsImpl::RemoveWebContentsDestructionObserver(
WebContentsImpl* web_contents) {
OPTIONAL_TRACE_EVENT0(
TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::RemoveWebContentsDestructionObserver");
web_contents_destruction_observers_.erase(web_contents);
}
void WebContentsImpl::AddRenderWidgetHostDestructionObserver(
RenderWidgetHost* render_widget_host) {
OPTIONAL_TRACE_EVENT0(
TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::AddRenderWidgetHostDestructionObserver");
if (!base::Contains(render_widget_host_destruction_observers_,
render_widget_host)) {
render_widget_host_destruction_observers_[render_widget_host] =
std::make_unique<RenderWidgetHostDestructionObserver>(
this, render_widget_host);
}
}
void WebContentsImpl::RemoveRenderWidgetHostDestructionObserver(
RenderWidgetHost* render_widget_host) {
OPTIONAL_TRACE_EVENT0(
TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::RemoveRenderWidgetHostDestructionObserver");
render_widget_host_destruction_observers_.erase(render_widget_host);
}
void WebContentsImpl::AddObserver(WebContentsObserver* observer) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::AddObserver");
observers_.AddObserver(observer);
}
void WebContentsImpl::RemoveObserver(WebContentsObserver* observer) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::RemoveObserver");
observers_.RemoveObserver(observer);
}
std::set<RenderWidgetHostViewBase*>
WebContentsImpl::GetRenderWidgetHostViewsInWebContentsTree() {
std::set<RenderWidgetHostViewBase*> result;
GetMainFrame()->ForEachRenderFrameHost(base::BindRepeating(
[](std::set<RenderWidgetHostViewBase*>& result,
RenderFrameHostImpl* rfh) {
if (auto* view =
static_cast<RenderWidgetHostViewBase*>(rfh->GetView())) {
result.insert(view);
}
},
std::ref(result)));
return result;
}
void WebContentsImpl::Activate() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Activate");
if (delegate_)
delegate_->ActivateContents(this);
}
void WebContentsImpl::SetTopControlsShownRatio(
RenderWidgetHostImpl* render_widget_host,
float ratio) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::SetTopControlsShownRatio",
"render_widget_host", render_widget_host, "ratio",
ratio);
if (!delegate_)
return;
RenderFrameHostImpl* rfh = GetMainFrame();
if (!rfh || render_widget_host != rfh->GetRenderWidgetHost())
return;
delegate_->SetTopControlsShownRatio(this, ratio);
}
void WebContentsImpl::SetTopControlsGestureScrollInProgress(bool in_progress) {
OPTIONAL_TRACE_EVENT1(
"content", "WebContentsImpl::SetTopControlsGestureScrollInProgress",
"in_progress", in_progress);
if (delegate_)
delegate_->SetTopControlsGestureScrollInProgress(in_progress);
}
void WebContentsImpl::RenderWidgetCreated(
RenderWidgetHostImpl* render_widget_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::RenderWidgetCreated",
"render_widget_host", render_widget_host);
created_widgets_.insert(render_widget_host);
}
void WebContentsImpl::RenderWidgetDeleted(
RenderWidgetHostImpl* render_widget_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::RenderWidgetDeleted",
"render_widget_host", render_widget_host);
// Note that IsBeingDestroyed() can return true at this point as
// ~WebContentsImpl() calls RFHM::ClearRFHsPendingShutdown(), which might lead
// us here.
created_widgets_.erase(render_widget_host);
if (IsBeingDestroyed())
return;
if (render_widget_host == mouse_lock_widget_)
LostMouseLock(mouse_lock_widget_);
CancelKeyboardLock(render_widget_host);
}
void WebContentsImpl::RenderWidgetWasResized(
RenderWidgetHostImpl* render_widget_host,
bool width_changed) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::RenderWidgetWasResized",
"render_widget_host", render_widget_host,
"width_changed", width_changed);
RenderFrameHostImpl* rfh = GetMainFrame();
if (!rfh || render_widget_host != rfh->GetRenderWidgetHost())
return;
observers_.NotifyObservers(&WebContentsObserver::PrimaryMainFrameWasResized,
width_changed);
}
KeyboardEventProcessingResult WebContentsImpl::PreHandleKeyboardEvent(
const NativeWebKeyboardEvent& event) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::PreHandleKeyboardEvent");
auto* outermost_contents = GetOutermostWebContents();
// TODO(wjmaclean): Generalize this to forward all key events to the outermost
// delegate's handler.
if (outermost_contents != this && IsFullscreen() &&
event.windows_key_code == ui::VKEY_ESCAPE) {
// When an inner WebContents has focus and is fullscreen, redirect <esc>
// key events to the outermost WebContents so it can be handled by that
// WebContents' delegate.
if (outermost_contents->PreHandleKeyboardEvent(event) ==
KeyboardEventProcessingResult::HANDLED) {
return KeyboardEventProcessingResult::HANDLED;
}
}
return delegate_ ? delegate_->PreHandleKeyboardEvent(this, event)
: KeyboardEventProcessingResult::NOT_HANDLED;
}
bool WebContentsImpl::HandleMouseEvent(const blink::WebMouseEvent& event) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::HandleMouseEvent");
// Handle mouse button back/forward in the browser process after the render
// process is done with the event. This ensures all renderer-initiated history
// navigations can be treated consistently.
if (event.GetType() == blink::WebInputEvent::Type::kMouseUp) {
WebContentsImpl* outermost = GetOutermostWebContents();
if (event.button == blink::WebPointerProperties::Button::kBack &&
outermost->GetController().CanGoBack()) {
outermost->GetController().GoBack();
return true;
} else if (event.button == blink::WebPointerProperties::Button::kForward &&
outermost->GetController().CanGoForward()) {
outermost->GetController().GoForward();
return true;
}
}
return false;
}
bool WebContentsImpl::HandleKeyboardEvent(const NativeWebKeyboardEvent& event) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::HandleKeyboardEvent");
if (browser_plugin_embedder_ &&
browser_plugin_embedder_->HandleKeyboardEvent(event)) {
return true;
}
return delegate_ && delegate_->HandleKeyboardEvent(this, event);
}
bool WebContentsImpl::HandleWheelEvent(const blink::WebMouseWheelEvent& event) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::HandleWheelEvent");
#if !BUILDFLAG(IS_MAC)
// On platforms other than Mac, control+mousewheel may change zoom. On Mac,
// this isn't done for two reasons:
// -the OS already has a gesture to do this through pinch-zoom
// -if a user starts an inertial scroll, let's go, and presses control
// (i.e. control+tab) then the OS's buffered scroll events will come in
// with control key set which isn't what the user wants
if (delegate_ && event.wheel_ticks_y &&
event.event_action == blink::WebMouseWheelEvent::EventAction::kPageZoom) {
// Count only integer cumulative scrolls as zoom events; this handles
// smooth scroll and regular scroll device behavior.
zoom_scroll_remainder_ += event.wheel_ticks_y;
int whole_zoom_scroll_remainder_ = std::lround(zoom_scroll_remainder_);
zoom_scroll_remainder_ -= whole_zoom_scroll_remainder_;
if (whole_zoom_scroll_remainder_ != 0) {
delegate_->ContentsZoomChange(whole_zoom_scroll_remainder_ > 0);
}
return true;
}
#endif
return false;
}
bool WebContentsImpl::PreHandleGestureEvent(
const blink::WebGestureEvent& event) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::PreHandleGestureEvent");
return delegate_ && delegate_->PreHandleGestureEvent(this, event);
}
RenderWidgetHostInputEventRouter* WebContentsImpl::GetInputEventRouter() {
if (!IsBeingDestroyed()) {
if (GetOuterWebContents())
return GetOuterWebContents()->GetInputEventRouter();
if (!rwh_input_event_router_.get()) {
rwh_input_event_router_ =
std::make_unique<RenderWidgetHostInputEventRouter>();
}
}
return rwh_input_event_router_.get();
}
RenderWidgetHostImpl* WebContentsImpl::GetFocusedRenderWidgetHost(
RenderWidgetHostImpl* receiving_widget) {
// Events for widgets other than the main frame (e.g., popup menus) should be
// forwarded directly to the widget they arrived on.
if (receiving_widget != GetMainFrame()->GetRenderWidgetHost())
return receiving_widget;
// If the focused WebContents is a guest WebContents, then get the focused
// frame in the embedder WebContents instead.
FrameTreeNode* focused_frame = GetFocusedFrameTree()->GetFocusedFrame();
if (!focused_frame)
return receiving_widget;
// The view may be null if a subframe's renderer process has crashed while
// the subframe has focus. Drop the event in that case. Do not give
// it to the main frame, so that the user doesn't unexpectedly type into the
// wrong frame if a focused subframe renderer crashes while they type.
RenderWidgetHostView* view = focused_frame->current_frame_host()->GetView();
if (!view)
return nullptr;
return RenderWidgetHostImpl::From(view->GetRenderWidgetHost());
}
RenderWidgetHostImpl* WebContentsImpl::GetRenderWidgetHostWithPageFocus() {
FrameTree* focused_frame_tree = GetFocusedFrameTree();
return focused_frame_tree->root()
->current_frame_host()
->GetRenderWidgetHost();
}
bool WebContentsImpl::CanEnterFullscreenMode(
RenderFrameHostImpl* requesting_frame,
const blink::mojom::FullscreenOptions& options) {
// It's possible that this WebContents was spawned while blocking UI was on
// the screen, or that it was downstream from a WebContents when UI was
// blocked. Therefore, disqualify it from fullscreen if it or any upstream
// WebContents has an active blocker.
auto openers = GetAllOpeningWebContents(this);
return std::all_of(openers.begin(), openers.end(),
[](auto* opener) {
return opener->fullscreen_blocker_count_ == 0;
}) &&
delegate_->CanEnterFullscreenModeForTab(requesting_frame, options);
}
void WebContentsImpl::EnterFullscreenMode(
RenderFrameHostImpl* requesting_frame,
const blink::mojom::FullscreenOptions& options) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::EnterFullscreenMode");
DCHECK(CanEnterFullscreenMode(requesting_frame, options));
DCHECK(requesting_frame->IsActive());
DCHECK(ContainsOrIsFocusedWebContents());
if (delegate_) {
delegate_->EnterFullscreenModeForTab(requesting_frame, options);
if (keyboard_lock_widget_)
delegate_->RequestKeyboardLock(this, esc_key_locked_);
}
observers_.NotifyObservers(
&WebContentsObserver::DidToggleFullscreenModeForTab, IsFullscreen(),
false);
FullscreenContentsSet(GetBrowserContext())->insert(this);
}
void WebContentsImpl::ExitFullscreenMode(bool will_cause_resize) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::ExitFullscreenMode",
"will_cause_resize", will_cause_resize);
if (delegate_) {
delegate_->ExitFullscreenModeForTab(this);
if (keyboard_lock_widget_)
delegate_->CancelKeyboardLockRequest(this);
}
// The fullscreen state is communicated to the renderer through a resize
// message. If the change in fullscreen state doesn't cause a view resize
// then we must ensure web contents exit the fullscreen state by explicitly
// sending a resize message. This is required for the situation of the browser
// moving the view into a "browser fullscreen" state and then the contents
// entering "tab fullscreen". Exiting the contents "tab fullscreen" then won't
// have the side effect of the view resizing, hence the explicit call here is
// required.
if (!will_cause_resize) {
if (RenderWidgetHostView* rwhv = GetRenderWidgetHostView()) {
if (RenderWidgetHost* render_widget_host = rwhv->GetRenderWidgetHost())
render_widget_host->SynchronizeVisualProperties();
}
}
current_fullscreen_frame_ = nullptr;
observers_.NotifyObservers(
&WebContentsObserver::DidToggleFullscreenModeForTab, IsFullscreen(),
will_cause_resize);
if (display_cutout_host_impl_)
display_cutout_host_impl_->DidExitFullscreen();
FullscreenContentsSet(GetBrowserContext())->erase(this);
}
void WebContentsImpl::FullscreenStateChanged(
RenderFrameHostImpl* rfh,
bool is_fullscreen,
blink::mojom::FullscreenOptionsPtr options) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::FullscreenStateChanged",
"render_frame_host", rfh, "is_fullscreen",
is_fullscreen);
if (is_fullscreen) {
if (options.is_null()) {
ReceivedBadMessage(rfh->GetProcess(),
bad_message::WCI_INVALID_FULLSCREEN_OPTIONS);
return;
}
if (delegate_)
delegate_->FullscreenStateChangedForTab(rfh, *options);
if (!base::Contains(fullscreen_frames_, rfh)) {
fullscreen_frames_.insert(rfh);
FullscreenFrameSetUpdated();
}
return;
}
// If |rfh| is no longer in fullscreen, remove it and any descendants.
// See https://fullscreen.spec.whatwg.org.
size_t size_before_deletion = fullscreen_frames_.size();
base::EraseIf(fullscreen_frames_, [&](RenderFrameHostImpl* current) {
while (current) {
if (current == rfh)
return true;
// We only look for direct parents. fencedframes and portals will not
// enter fullscreen.
current = current->GetParent();
}
return false;
});
if (size_before_deletion != fullscreen_frames_.size())
FullscreenFrameSetUpdated();
}
void WebContentsImpl::FullscreenFrameSetUpdated() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::FullscreenFrameSetUpdated");
if (fullscreen_frames_.empty()) {
current_fullscreen_frame_ = nullptr;
return;
}
// Find the current fullscreen frame and call the observers.
// If frame A is fullscreen, then frame B goes into inner fullscreen, then B
// exits fullscreen - that will result in A being fullscreen.
RenderFrameHostImpl* new_fullscreen_frame = *std::max_element(
fullscreen_frames_.begin(), fullscreen_frames_.end(), FrameCompareDepth);
// If we have already notified observers about this frame then we should not
// fire the observers again.
if (new_fullscreen_frame == current_fullscreen_frame_)
return;
current_fullscreen_frame_ = new_fullscreen_frame;
observers_.NotifyObservers(&WebContentsObserver::DidAcquireFullscreen,
new_fullscreen_frame);
if (display_cutout_host_impl_)
display_cutout_host_impl_->DidAcquireFullscreen(new_fullscreen_frame);
}
PageVisibilityState WebContentsImpl::CalculatePageVisibilityState(
Visibility visibility) const {
// Only hide the page if there are no entities capturing screenshots
// or video (e.g. mirroring or WebXR). If there are, apply the correct state
// of kHidden or kHiddenButPainting.
bool web_contents_visible_in_vr = false;
#if BUILDFLAG(ENABLE_VR)
web_contents_visible_in_vr =
XRRuntimeManagerImpl::GetImmersiveSessionWebContents() == this;
#endif
// If there are entities in Picture-in-Picture mode, don't activate the
// "disable rendering" optimization, since it still needs to drive the video,
// and possibly other elements on the page like canvas, to keep the picture in
// picture window up to date.
if (visibility == Visibility::VISIBLE || visible_capturer_count_ > 0 ||
web_contents_visible_in_vr) {
return PageVisibilityState::kVisible;
} else if (hidden_capturer_count_ > 0 || has_picture_in_picture_video_) {
return PageVisibilityState::kHiddenButPainting;
}
return PageVisibilityState::kHidden;
}
PageVisibilityState WebContentsImpl::GetPageVisibilityState() const {
return CalculatePageVisibilityState(visibility_);
}
void WebContentsImpl::UpdateVisibilityAndNotifyPageAndView(
Visibility new_visibility,
bool is_activity) {
DCHECK(!IsBeingDestroyed());
PageVisibilityState page_visibility =
CalculatePageVisibilityState(new_visibility);
// A crashed frame might be covered by a sad tab. See docs on SadTabHelper
// exactly when it is or isn't. Either way, don't make it visible.
bool view_is_visible =
!IsCrashed() && page_visibility != PageVisibilityState::kHidden;
// Prerendering relies on overriding FrameTree::Delegate::IsHidden,
// while for other frame trees FrameTree::Delegate::IsHidden
// resolves to WebContents' visibility, so we avoid Prerender RennderViewHosts
// here.
ForEachRenderViewHostTypes view_mask =
static_cast<ForEachRenderViewHostTypes>(
ForEachRenderViewHostTypes::kBackForwardCacheViews |
ForEachRenderViewHostTypes::kActiveViews);
RenderViewHostIterationCallback update_frame_tree_visibility =
base::BindRepeating(
[](PageVisibilityState page_visibility,
RenderViewHostImpl* render_view_host) {
render_view_host->SetFrameTreeVisibility(page_visibility);
},
page_visibility);
if (page_visibility != PageVisibilityState::kHidden) {
// We cannot show a page or capture video unless there is a valid renderer
// associated with this web contents. The navigation controller for this
// page must be set to active (allowing navigation to complete, a renderer
// and its associated views to be created, etc.) if any of these conditions
// holds.
//
// Previously, it was possible for browser-side code to try to capture video
// from a restored tab (for a variety of reasons, including the browser
// creating preview thumbnails) and the tab would never actually load. By
// keying this behavior off of |page_visibility| instead of just
// |new_visibility| we avoid this case. See crbug.com/1020782 for more
// context.
GetController().SetActive(true);
// This shows the Page before showing the individual RenderWidgets, as
// RenderWidgets will work to produce compositor frames and handle input
// as soon as they are shown. But the Page and other classes do not expect
// to be producing frames when the Page is hidden. So we make sure the Page
// is shown first.
ForEachRenderViewHost(view_mask, update_frame_tree_visibility);
}
// |GetRenderWidgetHostView()| can be null if the user middle clicks a link to
// open a tab in the background, then closes the tab before selecting it.
// This is because closing the tab calls WebContentsImpl::Destroy(), which
// removes the |GetRenderViewHost()|; then when we actually destroy the
// window, OnWindowPosChanged() notices and calls WasHidden() (which
// calls us).
if (auto* view = GetRenderWidgetHostView()) {
if (view_is_visible) {
static_cast<RenderWidgetHostViewBase*>(view)->ShowWithVisibility(
page_visibility);
} else if (new_visibility == Visibility::HIDDEN) {
view->Hide();
} else {
view->WasOccluded();
}
}
SetVisibilityForChildViews(view_is_visible);
// Make sure to call SetVisibilityAndNotifyObservers(VISIBLE) before notifying
// the CrossProcessFrameConnector.
if (new_visibility == Visibility::VISIBLE) {
if (is_activity) {
last_active_time_ = base::TimeTicks::Now();
}
SetVisibilityAndNotifyObservers(new_visibility);
}
if (page_visibility == PageVisibilityState::kHidden) {
// Similar to when showing the page, we only hide the page after
// hiding the individual RenderWidgets.
ForEachRenderViewHost(view_mask, update_frame_tree_visibility);
} else {
for (FrameTreeNode* node :
FrameTree::SubtreeAndInnerTreeNodes(GetMainFrame())) {
RenderFrameProxyHost* proxy_to_parent_or_outer_delegate =
node->render_manager()->GetProxyToParentOrOuterDelegate();
if (!proxy_to_parent_or_outer_delegate)
continue;
// DelegateWasShown keeps track of crash metrics. This is safe to
// call for GuestViews, and inner frame trees.
proxy_to_parent_or_outer_delegate->cross_process_frame_connector()
->DelegateWasShown();
}
}
if (new_visibility != Visibility::VISIBLE)
SetVisibilityAndNotifyObservers(new_visibility);
}
#if BUILDFLAG(IS_ANDROID)
void WebContentsImpl::UpdateUserGestureCarryoverInfo() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::UpdateUserGestureCarryoverInfo");
if (delegate_)
delegate_->UpdateUserGestureCarryoverInfo(this);
}
#endif
bool WebContentsImpl::IsFullscreen() {
return delegate_ ? delegate_->IsFullscreenForTabOrPending(this) : false;
}
bool WebContentsImpl::ShouldShowStaleContentOnEviction() {
return GetDelegate() && GetDelegate()->ShouldShowStaleContentOnEviction(this);
}
blink::mojom::DisplayMode WebContentsImpl::GetDisplayMode() const {
return delegate_ ? delegate_->GetDisplayMode(this)
: blink::mojom::DisplayMode::kBrowser;
}
void WebContentsImpl::RequestToLockMouse(
RenderWidgetHostImpl* render_widget_host,
bool user_gesture,
bool last_unlocked_by_target,
bool privileged) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::RequestToLockMouse",
"render_widget_host", render_widget_host, "privileged",
privileged);
if (render_widget_host->frame_tree()->type() ==
FrameTree::Type::kFencedFrame) {
// The renderer should have checked and disallowed the request for fenced
// frames in PointerLockController and dispatched pointerlockerror. Ignore
// the request and mark it as bad if it didn't happen for some reason.
ReceivedBadMessage(render_widget_host->GetProcess(),
bad_message::WCI_REQUEST_LOCK_MOUSE_FENCED_FRAME);
return;
}
for (WebContentsImpl* current = this; current;
current = current->GetOuterWebContents()) {
if (current->mouse_lock_widget_) {
render_widget_host->GotResponseToLockMouseRequest(
blink::mojom::PointerLockResult::kAlreadyLocked);
return;
}
}
if (privileged) {
DCHECK(!GetOuterWebContents());
mouse_lock_widget_ = render_widget_host;
render_widget_host->GotResponseToLockMouseRequest(
blink::mojom::PointerLockResult::kSuccess);
return;
}
bool widget_in_frame_tree = false;
for (FrameTreeNode* node : primary_frame_tree_.Nodes()) {
if (node->current_frame_host()->GetRenderWidgetHost() ==
render_widget_host) {
widget_in_frame_tree = true;
break;
}
}
if (widget_in_frame_tree && delegate_) {
for (WebContentsImpl* current = this; current;
current = current->GetOuterWebContents()) {
current->mouse_lock_widget_ = render_widget_host;
}
delegate_->RequestToLockMouse(this, user_gesture, last_unlocked_by_target);
} else {
render_widget_host->GotResponseToLockMouseRequest(
blink::mojom::PointerLockResult::kWrongDocument);
}
}
void WebContentsImpl::LostMouseLock(RenderWidgetHostImpl* render_widget_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::LostMouseLock",
"render_widget_host", render_widget_host);
CHECK(mouse_lock_widget_);
if (WebContentsImpl::FromRenderWidgetHostImpl(mouse_lock_widget_) != this)
return mouse_lock_widget_->delegate()->LostMouseLock(render_widget_host);
mouse_lock_widget_->SendMouseLockLost();
for (WebContentsImpl* current = this; current;
current = current->GetOuterWebContents()) {
current->mouse_lock_widget_ = nullptr;
}
if (delegate_)
delegate_->LostMouseLock();
}
bool WebContentsImpl::HasMouseLock(RenderWidgetHostImpl* render_widget_host) {
// To verify if the mouse is locked, the mouse_lock_widget_ needs to be
// assigned to the widget that requested the mouse lock, and the top-level
// platform RenderWidgetHostView needs to hold the mouse lock from the OS.
auto* widget_host = GetTopLevelRenderWidgetHostView();
return mouse_lock_widget_ == render_widget_host && widget_host &&
widget_host->IsMouseLocked();
}
RenderWidgetHostImpl* WebContentsImpl::GetMouseLockWidget() {
auto* widget_host = GetTopLevelRenderWidgetHostView();
if (widget_host && widget_host->IsMouseLocked()) {
return mouse_lock_widget_;
}
return nullptr;
}
bool WebContentsImpl::RequestKeyboardLock(
RenderWidgetHostImpl* render_widget_host,
bool esc_key_locked) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::RequestKeyboardLock",
"render_widget_host", render_widget_host,
"esc_key_locked", esc_key_locked);
DCHECK(render_widget_host);
if (WebContentsImpl::FromRenderWidgetHostImpl(render_widget_host) != this) {
NOTREACHED();
return false;
}
// KeyboardLock is only supported when called by the top-level browsing
// context and is not supported in embedded content scenarios.
if (GetOuterWebContents())
return false;
esc_key_locked_ = esc_key_locked;
keyboard_lock_widget_ = render_widget_host;
if (delegate_)
delegate_->RequestKeyboardLock(this, esc_key_locked_);
return true;
}
void WebContentsImpl::CancelKeyboardLock(
RenderWidgetHostImpl* render_widget_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::CancelKeyboardLockRequest",
"render_widget_host", render_widget_host);
if (!keyboard_lock_widget_ || render_widget_host != keyboard_lock_widget_)
return;
RenderWidgetHostImpl* old_keyboard_lock_widget = keyboard_lock_widget_;
keyboard_lock_widget_ = nullptr;
if (delegate_)
delegate_->CancelKeyboardLockRequest(this);
old_keyboard_lock_widget->CancelKeyboardLock();
}
RenderWidgetHostImpl* WebContentsImpl::GetKeyboardLockWidget() {
return keyboard_lock_widget_;
}
bool WebContentsImpl::OnRenderFrameProxyVisibilityChanged(
RenderFrameProxyHost* render_frame_proxy_host,
blink::mojom::FrameVisibility visibility) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::OnRenderFrameProxyVisibilityChanged",
"visibility", static_cast<int>(visibility));
// Check that we are responsible for the RenderFrameProxyHost by checking that
// its FrameTreeNode matches our `primary_frame_tree_` root. Otherwise this is
// not a visibility change that affects all frames in an inner WebContents.
if (render_frame_proxy_host->frame_tree_node() != primary_frame_tree_.root())
return false;
DCHECK(GetOuterWebContents());
switch (visibility) {
case blink::mojom::FrameVisibility::kRenderedInViewport:
WasShown();
break;
case blink::mojom::FrameVisibility::kNotRendered:
WasHidden();
break;
case blink::mojom::FrameVisibility::kRenderedOutOfViewport:
WasOccluded();
break;
}
return true;
}
FrameTree* WebContentsImpl::CreateNewWindow(
RenderFrameHostImpl* opener,
const mojom::CreateNewWindowParams& params,
bool is_new_browsing_instance,
bool has_user_gesture,
SessionStorageNamespace* session_storage_namespace) {
TRACE_EVENT2("browser,content,navigation", "WebContentsImpl::CreateNewWindow",
"opener", opener, "params", params);
DCHECK(opener);
int render_process_id = opener->GetProcess()->GetID();
auto* source_site_instance =
static_cast<SiteInstanceImpl*>(opener->GetSiteInstance());
const auto& partition_config =
source_site_instance->GetStoragePartitionConfig();
{
StoragePartition* partition =
GetBrowserContext()->GetStoragePartition(source_site_instance);
DOMStorageContextWrapper* dom_storage_context =
static_cast<DOMStorageContextWrapper*>(
partition->GetDOMStorageContext());
SessionStorageNamespaceImpl* session_storage_namespace_impl =
static_cast<SessionStorageNamespaceImpl*>(session_storage_namespace);
CHECK(session_storage_namespace_impl->IsFromContext(dom_storage_context));
}
if (delegate_ && delegate_->IsWebContentsCreationOverridden(
source_site_instance, params.window_container_type,
opener->GetLastCommittedURL(), params.frame_name,
params.target_url)) {
auto* web_contents_impl =
static_cast<WebContentsImpl*>(delegate_->CreateCustomWebContents(
opener, source_site_instance, is_new_browsing_instance,
opener->GetLastCommittedURL(), params.frame_name, params.target_url,
partition_config, session_storage_namespace));
if (!web_contents_impl)
return nullptr;
return &web_contents_impl->GetPrimaryFrameTree();
}
bool renderer_started_hidden =
params.disposition == WindowOpenDisposition::NEW_BACKGROUND_TAB;
bool is_guest = IsGuest();
// We usually create the new window in the same BrowsingInstance (group of
// script-related windows), by passing in the current SiteInstance. However,
// if the opener is being suppressed, we need to ensure that the new
// SiteInstance is created in a new BrowsingInstance.
scoped_refptr<SiteInstance> site_instance;
if (params.opener_suppressed) {
if (is_guest) {
// For site-isolated guests, noopener windows can be created in a new
// BrowsingInstance as long as they preserve the guest's StoragePartition.
// For non-isolated guests, we preserve the legacy behavior of keeping the
// new window in the old SiteInstance and BrowsingInstance.
site_instance = SiteIsolationPolicy::IsSiteIsolationForGuestsEnabled()
? SiteInstance::CreateForGuest(GetBrowserContext(),
partition_config)
: source_site_instance;
} else {
site_instance = SiteInstance::Create(GetBrowserContext());
}
} else {
site_instance = source_site_instance;
}
// Create the new web contents. This will automatically create the new
// WebContentsView. In the future, we may want to create the view separately.
CreateParams create_params(GetBrowserContext(), site_instance.get());
create_params.main_frame_name = params.frame_name;
create_params.opener_render_process_id = render_process_id;
create_params.opener_render_frame_id = opener->GetRoutingID();
create_params.opener_suppressed = params.opener_suppressed;
create_params.initially_hidden = renderer_started_hidden;
create_params.initial_popup_url = params.target_url;
// Even though all codepaths leading here are in response to a renderer
// tryng to open a new window, if the new window ends up in a different
// browsing instance, then the RenderViewHost, RenderWidgetHost,
// RenderFrameHost constellation is effectively browser initiated
// the opener's process will not given the routing IDs for the new
// objects.
create_params.renderer_initiated_creation = !is_new_browsing_instance;
std::unique_ptr<WebContentsImpl> new_contents;
if (!is_guest) {
create_params.context = view_->GetNativeView();
new_contents = WebContentsImpl::Create(create_params);
} else {
new_contents = base::WrapUnique(static_cast<WebContentsImpl*>(
GetBrowserPluginGuest()->CreateNewGuestWindow(create_params)));
}
auto* new_contents_impl = new_contents.get();
new_contents_impl->GetController().SetSessionStorageNamespace(
partition_config, session_storage_namespace);
// If the new frame has a name, make sure any SiteInstances that can find
// this named frame have proxies for it. Must be called after
// SetSessionStorageNamespace, since this calls CreateRenderView, which uses
// GetSessionStorageNamespace.
if (!params.frame_name.empty()) {
new_contents_impl->GetRenderManager()->CreateProxiesForNewNamedFrame(
new_contents_impl->GetMainFrame()->browsing_context_state());
}
// Save the window for later if we're not suppressing the opener (since it
// will be shown immediately).
if (!params.opener_suppressed) {
if (!is_guest) {
WebContentsView* new_view = new_contents_impl->view_.get();
// TODO(brettw): It seems bogus that we have to call this function on the
// newly created object and give it one of its own member variables.
RenderWidgetHostView* widget_view = new_view->CreateViewForWidget(
new_contents_impl->GetRenderViewHost()->GetWidget());
view_->SetOverscrollControllerEnabled(CanOverscrollContent());
if (!renderer_started_hidden) {
// RenderWidgets for frames always initialize as hidden. If the renderer
// created this window as visible, then we show it here.
widget_view->Show();
}
}
// Save the created window associated with the route so we can show it
// later.
//
// TODO(ajwong): This should be keyed off the RenderFrame routing id or the
// FrameTreeNode id instead of the routing id of the Widget for the main
// frame. https://crbug.com/545684
int32_t main_frame_routing_id = new_contents_impl->GetMainFrame()
->GetRenderWidgetHost()
->GetRoutingID();
GlobalRoutingID id(render_process_id, main_frame_routing_id);
pending_contents_[id] =
CreatedWindow(std::move(new_contents), params.target_url);
AddWebContentsDestructionObserver(new_contents_impl);
}
if (delegate_) {
delegate_->WebContentsCreated(this, render_process_id,
opener->GetRoutingID(), params.frame_name,
params.target_url, new_contents_impl);
}
observers_.NotifyObservers(&WebContentsObserver::DidOpenRequestedURL,
new_contents_impl, opener, params.target_url,
params.referrer.To<Referrer>(), params.disposition,
ui::PAGE_TRANSITION_LINK,
false, // started_from_context_menu
true); // renderer_initiated
if (params.opener_suppressed) {
// When the opener is suppressed, the original renderer cannot access the
// new window. As a result, we need to show and navigate the window here.
bool was_blocked = false;
if (delegate_) {
base::WeakPtr<WebContentsImpl> weak_new_contents =
new_contents_impl->weak_factory_.GetWeakPtr();
gfx::Rect initial_rect; // Report an empty initial rect.
delegate_->AddNewContents(this, std::move(new_contents),
params.target_url, params.disposition,
initial_rect, has_user_gesture, &was_blocked);
// The delegate may delete |new_contents_impl| during AddNewContents().
if (!weak_new_contents)
return nullptr;
}
if (!was_blocked) {
std::unique_ptr<NavigationController::LoadURLParams> load_params =
std::make_unique<NavigationController::LoadURLParams>(
params.target_url);
load_params->initiator_origin = opener->GetLastCommittedOrigin();
load_params->initiator_process_id = opener->GetProcess()->GetID();
load_params->initiator_frame_token = opener->GetFrameToken();
// Avoiding setting |load_params->source_site_instance| when
// |opener_suppressed| is true, because in that case we do not want to use
// the old SiteInstance and/or BrowsingInstance. See also the test here:
// NewPopupCOOP_SameOriginPolicyAndCrossOriginIframeSetsNoopener.
load_params->referrer = params.referrer.To<Referrer>();
load_params->transition_type = ui::PAGE_TRANSITION_LINK;
load_params->is_renderer_initiated = true;
load_params->was_opener_suppressed = true;
load_params->has_user_gesture = has_user_gesture;
load_params->impression = params.impression;
load_params->override_user_agent =
new_contents_impl->should_override_user_agent_in_new_tabs_
? NavigationController::UA_OVERRIDE_TRUE
: NavigationController::UA_OVERRIDE_FALSE;
load_params->download_policy = params.download_policy;
if (delegate_ && !is_guest &&
!delegate_->ShouldResumeRequestsForCreatedWindow()) {
// We are in asynchronous add new contents path, delay navigation.
DCHECK(!new_contents_impl->delayed_open_url_params_);
new_contents_impl->delayed_load_url_params_ = std::move(load_params);
} else {
new_contents_impl->GetController().LoadURLWithParams(
*load_params.get());
if (!is_guest)
new_contents_impl->Focus();
}
}
}
return &new_contents_impl->GetPrimaryFrameTree();
}
RenderWidgetHostImpl* WebContentsImpl::CreateNewPopupWidget(
base::SafeRef<SiteInstanceGroup> site_instance_group,
int32_t route_id,
mojo::PendingAssociatedReceiver<blink::mojom::PopupWidgetHost>
blink_popup_widget_host,
mojo::PendingAssociatedReceiver<blink::mojom::WidgetHost> blink_widget_host,
mojo::PendingAssociatedRemote<blink::mojom::Widget> blink_widget) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::CreateNewPopupWidget",
"route_id", route_id);
RenderWidgetHostImpl* widget_host = RenderWidgetHostImpl::CreateSelfOwned(
&primary_frame_tree_, this, site_instance_group, route_id, IsHidden(),
std::make_unique<FrameTokenMessageQueue>());
widget_host->BindWidgetInterfaces(std::move(blink_widget_host),
std::move(blink_widget));
widget_host->BindPopupWidgetInterface(std::move(blink_popup_widget_host));
RenderWidgetHostViewBase* widget_view =
static_cast<RenderWidgetHostViewBase*>(
view_->CreateViewForChildWidget(widget_host));
if (!widget_view)
return nullptr;
widget_view->SetWidgetType(WidgetType::kPopup);
// Save the created widget associated with the route so we can show it later.
pending_widgets_[GlobalRoutingID(site_instance_group->process()->GetID(),
route_id)] = widget_host;
AddRenderWidgetHostDestructionObserver(widget_host);
return widget_host;
}
void WebContentsImpl::ShowCreatedWindow(RenderFrameHostImpl* opener,
int main_frame_widget_route_id,
WindowOpenDisposition disposition,
const gfx::Rect& initial_rect,
bool user_gesture) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::ShowCreatedWindow",
"opener", opener, "main_frame_widget_route_id",
main_frame_widget_route_id);
// This method is the renderer requesting an existing top level window to
// show a new top level window that the renderer created. Each top level
// window is associated with a WebContents. In this case it was created
// earlier but showing it was deferred until the renderer requested for it
// to be shown. We find that previously created WebContents here.
// TODO(danakj): Why do we defer this show step until the renderer asks for it
// when it will always do so. What needs to happen in the renderer before we
// reach here?
absl::optional<CreatedWindow> owned_created = GetCreatedWindow(
opener->GetProcess()->GetID(), main_frame_widget_route_id);
// The browser may have rejected the request to make a new window, or the
// renderer could be requesting to show a previously shown window (occurs when
// mojom::CreateNewWindowStatus::kReuse is used). Ignore the request then.
if (!owned_created || !owned_created->contents)
return;
WebContentsImpl* created = owned_created->contents.get();
// This uses the delegate for the WebContents where the window was created
// from, to control how to show the newly created window.
WebContentsDelegate* delegate = GetDelegate();
// Individual members of |initial_rect| may be 0 to indicate that the
// window.open() feature string did not specify a value. This code does not
// have the ability to distinguish between an unspecified value and 0.
// Assume that if any single value is non-zero, all values should be used.
// TODO(crbug.com/897300): Plumb values as specified; set defaults here?
gfx::Rect adjusted_rect = initial_rect;
int64_t display_id = display::kInvalidDisplayId;
if (adjusted_rect != gfx::Rect())
display_id = AdjustRequestedWindowBounds(&adjusted_rect, opener);
// Drop fullscreen when opening a WebContents to prohibit deceptive behavior.
// Only drop fullscreen on the specific destination display, if it is known.
// This supports sites using cross-screen window placement capabilities to
// retain fullscreen and open a window on another screen.
ForSecurityDropFullscreen(display_id).RunAndReset();
// The delegate can be null in tests, so we must check for it :(.
if (delegate) {
// Mark the web contents as pending resume, then immediately do
// the resume if the delegate wants it.
created->is_resume_pending_ = true;
if (delegate->ShouldResumeRequestsForCreatedWindow())
created->ResumeLoadingCreatedWebContents();
delegate->AddNewContents(this, std::move(owned_created->contents),
std::move(owned_created->target_url), disposition,
adjusted_rect, user_gesture, nullptr);
}
}
void WebContentsImpl::ShowCreatedWidget(int process_id,
int widget_route_id,
const gfx::Rect& initial_rect,
const gfx::Rect& initial_anchor_rect) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::ShowCreatedWidget",
"process_id", process_id, "widget_route_id",
widget_route_id);
RenderWidgetHostViewBase* widget_host_view =
static_cast<RenderWidgetHostViewBase*>(
GetCreatedWidget(process_id, widget_route_id));
if (!widget_host_view)
return;
// GetOutermostWebContents() returns |this| if there are no outer WebContents.
auto* outer_web_contents = GetOuterWebContents();
auto* outermost_web_contents = GetOutermostWebContents();
RenderWidgetHostView* view =
outermost_web_contents->GetRenderWidgetHostView();
// It's not entirely obvious why we need the transform only in the case where
// the outer webcontents is not the same as the outermost webcontents. It may
// be due to the fact that oopifs that are children of the mainframe get
// correct values for their screenrects, but deeper cross-process frames do
// not. Hopefully this can be resolved with https://crbug.com/928825.
// Handling these cases separately is needed for http://crbug.com/1015298.
bool needs_transform = this != outermost_web_contents &&
outermost_web_contents != outer_web_contents;
gfx::Rect transformed_rect(initial_rect);
gfx::Rect transformed_anchor_rect(initial_anchor_rect);
RenderWidgetHostView* this_view = GetRenderWidgetHostView();
if (needs_transform) {
// We need to transform the coordinates of initial_rect.
gfx::Point origin =
this_view->TransformPointToRootCoordSpace(initial_rect.origin());
gfx::Point bottom_right =
this_view->TransformPointToRootCoordSpace(initial_rect.bottom_right());
transformed_rect =
gfx::Rect(origin.x(), origin.y(), bottom_right.x() - origin.x(),
bottom_right.y() - origin.y());
origin =
this_view->TransformPointToRootCoordSpace(initial_anchor_rect.origin());
bottom_right = this_view->TransformPointToRootCoordSpace(
initial_anchor_rect.bottom_right());
transformed_anchor_rect =
gfx::Rect(origin.x(), origin.y(), bottom_right.x() - origin.x(),
bottom_right.y() - origin.y());
}
widget_host_view->InitAsPopup(view, transformed_rect,
transformed_anchor_rect);
RenderWidgetHostImpl* render_widget_host_impl = widget_host_view->host();
// Renderer-owned popup widgets wait for the renderer to request for them
// to be shown. We signal that this condition is satisfied by calling Init().
render_widget_host_impl->Init();
}
absl::optional<CreatedWindow> WebContentsImpl::GetCreatedWindow(
int process_id,
int main_frame_widget_route_id) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::GetCreatedWindow",
"process_id", process_id, "main_frame_widget_route_id",
main_frame_widget_route_id);
auto key = GlobalRoutingID(process_id, main_frame_widget_route_id);
auto iter = pending_contents_.find(key);
// Certain systems can block the creation of new windows. If we didn't succeed
// in creating one, just return NULL.
if (iter == pending_contents_.end())
return absl::nullopt;
CreatedWindow result = std::move(iter->second);
WebContentsImpl* new_contents = result.contents.get();
pending_contents_.erase(key);
RemoveWebContentsDestructionObserver(new_contents);
// Don't initialize the guest WebContents immediately.
if (new_contents->IsGuest())
return result;
if (!new_contents->GetMainFrame()->GetProcess()->IsInitializedAndNotDead() ||
!new_contents->GetMainFrame()->GetView()) {
return absl::nullopt;
}
return result;
}
RenderWidgetHostView* WebContentsImpl::GetCreatedWidget(int process_id,
int route_id) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::GetCreatedWidget",
"process_id", process_id, "route_id", route_id);
auto iter = pending_widgets_.find(GlobalRoutingID(process_id, route_id));
if (iter == pending_widgets_.end()) {
DCHECK(false);
return nullptr;
}
RenderWidgetHost* widget_host = iter->second;
pending_widgets_.erase(GlobalRoutingID(process_id, route_id));
RemoveRenderWidgetHostDestructionObserver(widget_host);
if (!widget_host->GetProcess()->IsInitializedAndNotDead()) {
// The view has gone away or the renderer crashed. Nothing to do.
return nullptr;
}
return widget_host->GetView();
}
void WebContentsImpl::CreateMediaPlayerHostForRenderFrameHost(
RenderFrameHostImpl* frame_host,
mojo::PendingAssociatedReceiver<media::mojom::MediaPlayerHost> receiver) {
media_web_contents_observer()->BindMediaPlayerHost(frame_host->GetGlobalId(),
std::move(receiver));
}
void WebContentsImpl::RequestMediaAccessPermission(
const MediaStreamRequest& request,
MediaResponseCallback callback) {
OPTIONAL_TRACE_EVENT2("content",
"WebContentsImpl::RequestMediaAccessPermission",
"render_process_id", request.render_process_id,
"render_frame_id", request.render_frame_id);
if (delegate_) {
delegate_->RequestMediaAccessPermission(this, request, std::move(callback));
} else {
std::move(callback).Run(
blink::mojom::StreamDevices(),
blink::mojom::MediaStreamRequestResult::FAILED_DUE_TO_SHUTDOWN,
std::unique_ptr<MediaStreamUI>());
}
}
bool WebContentsImpl::CheckMediaAccessPermission(
RenderFrameHostImpl* render_frame_host,
const url::Origin& security_origin,
blink::mojom::MediaStreamType type) {
OPTIONAL_TRACE_EVENT2("content",
"WebContentsImpl::CheckMediaAccessPermission",
"render_frame_host", render_frame_host,
"security_origin", security_origin);
DCHECK(type == blink::mojom::MediaStreamType::DEVICE_AUDIO_CAPTURE ||
type == blink::mojom::MediaStreamType::DEVICE_VIDEO_CAPTURE);
return delegate_ && delegate_->CheckMediaAccessPermission(
render_frame_host, security_origin.GetURL(), type);
}
std::string WebContentsImpl::GetDefaultMediaDeviceID(
blink::mojom::MediaStreamType type) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::GetDefaultMediaDeviceID",
"type", static_cast<int>(type));
if (!delegate_)
return std::string();
return delegate_->GetDefaultMediaDeviceID(this, type);
}
void WebContentsImpl::SetCaptureHandleConfig(
blink::mojom::CaptureHandleConfigPtr config) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (capture_handle_config_ == *config) {
return; // Avoid unnecessary notifications.
}
capture_handle_config_ = std::move(*config);
// Propagates the capture-handle-config inside of the browser process.
// Only render processes which are eligible based on |permittedOrigins|
// will get this.
observers_.NotifyObservers(&WebContentsObserver::OnCaptureHandleConfigUpdate,
capture_handle_config_);
}
bool WebContentsImpl::IsJavaScriptDialogShowing() const {
return is_showing_javascript_dialog_;
}
bool WebContentsImpl::ShouldIgnoreUnresponsiveRenderer() {
// Suppress unresponsive renderers if the command line asks for it.
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableHangMonitor))
return true;
if (IsBeingDestroyed())
return true;
if (suppress_unresponsive_renderer_count_ > 0)
return true;
// Ignore unresponsive renderers if the debugger is attached to them since the
// unresponsiveness might be a result of the renderer sitting on a breakpoint.
//
#if BUILDFLAG(IS_WIN)
// Check if a windows debugger is attached to the renderer process.
base::ProcessHandle process_handle =
GetMainFrame()->GetProcess()->GetProcess().Handle();
BOOL debugger_present = FALSE;
if (CheckRemoteDebuggerPresent(process_handle, &debugger_present) &&
debugger_present)
return true;
#endif // BUILDFLAG(IS_WIN)
// TODO(pfeldman): Fix this to only return true if the renderer is *actually*
// sitting on a breakpoint. https://crbug.com/684202
return DevToolsAgentHost::IsDebuggerAttached(this);
}
ui::AXMode WebContentsImpl::GetAccessibilityMode() {
return accessibility_mode_;
}
void WebContentsImpl::AXTreeIDForMainFrameHasChanged() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::AXTreeIDForMainFrameHasChanged");
RenderWidgetHostViewBase* rwhv =
static_cast<RenderWidgetHostViewBase*>(GetRenderWidgetHostView());
if (rwhv)
rwhv->SetMainFrameAXTreeID(GetMainFrame()->GetAXTreeID());
observers_.NotifyObservers(
&WebContentsObserver::AXTreeIDForMainFrameHasChanged);
}
void WebContentsImpl::AccessibilityEventReceived(
const AXEventNotificationDetails& details) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::AccessibilityEventReceived");
observers_.NotifyObservers(&WebContentsObserver::AccessibilityEventReceived,
details);
}
void WebContentsImpl::AccessibilityLocationChangesReceived(
const std::vector<AXLocationChangeNotificationDetails>& details) {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::AccessibilityLocationChangesReceived");
observers_.NotifyObservers(
&WebContentsObserver::AccessibilityLocationChangesReceived, details);
}
std::string WebContentsImpl::DumpAccessibilityTree(
bool internal,
std::vector<ui::AXPropertyFilter> property_filters) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::DumpAccessibilityTree");
auto* ax_mgr = GetOrCreateRootBrowserAccessibilityManager();
DCHECK(ax_mgr);
// Developer mode: crash immediately on any accessibility fatal error.
// This only runs during integration tests, or if a developer is
// using an inspection tool, e.g. chrome://accessibility.
BrowserAccessibilityManager::AlwaysFailFast();
std::unique_ptr<ui::AXTreeFormatter> formatter =
internal ? AXInspectFactory::CreateBlinkFormatter()
: AXInspectFactory::CreatePlatformFormatter();
formatter->SetPropertyFilters(property_filters);
return formatter->Format(ax_mgr->GetRoot());
}
void WebContentsImpl::RecordAccessibilityEvents(
bool start_recording,
absl::optional<ui::AXEventCallback> callback) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::RecordAccessibilityEvents");
// Only pass a callback to RecordAccessibilityEvents when starting to record.
DCHECK_EQ(start_recording, callback.has_value());
if (start_recording) {
SetAccessibilityMode(ui::AXMode::kWebContents);
auto* ax_mgr = GetOrCreateRootBrowserAccessibilityManager();
DCHECK(ax_mgr);
base::ProcessId pid = base::Process::Current().Pid();
gfx::AcceleratedWidget widget =
ax_mgr->GetRoot()->GetTargetForNativeAccessibilityEvent();
DCHECK(widget);
ui::AXTreeSelector selector(widget);
event_recorder_ = content::AXInspectFactory::CreatePlatformRecorder(
ax_mgr, pid, selector);
event_recorder_->ListenToEvents(*callback);
} else {
if (event_recorder_) {
event_recorder_->WaitForDoneRecording();
event_recorder_.reset(nullptr);
}
}
}
device::mojom::GeolocationContext* WebContentsImpl::GetGeolocationContext() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::GetGeolocationContext");
if (delegate_) {
auto* installed_webapp_context =
delegate_->GetInstalledWebappGeolocationContext();
if (installed_webapp_context)
return installed_webapp_context;
}
if (!geolocation_context_) {
GetDeviceService().BindGeolocationContext(
geolocation_context_.BindNewPipeAndPassReceiver());
}
return geolocation_context_.get();
}
device::mojom::WakeLockContext* WebContentsImpl::GetWakeLockContext() {
if (!enable_wake_locks_)
return nullptr;
if (!wake_lock_context_host_)
wake_lock_context_host_ = std::make_unique<WakeLockContextHost>(this);
return wake_lock_context_host_->GetWakeLockContext();
}
#if BUILDFLAG(IS_ANDROID)
void WebContentsImpl::GetNFC(
RenderFrameHost* render_frame_host,
mojo::PendingReceiver<device::mojom::NFC> receiver) {
if (!nfc_host_)
nfc_host_ = std::make_unique<NFCHost>(this);
nfc_host_->GetNFC(render_frame_host, std::move(receiver));
}
#endif
void WebContentsImpl::SendScreenRects() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SendScreenRects");
DCHECK(!IsBeingDestroyed());
GetMainFrame()->ForEachRenderFrameHost(
base::BindRepeating([](RenderFrameHostImpl* render_frame_host) {
if (render_frame_host->is_local_root()) {
render_frame_host->GetRenderWidgetHost()->SendScreenRects();
}
}));
}
void WebContentsImpl::SendActiveState(bool active) {
DCHECK(!IsBeingDestroyed());
// Replicate the active state to all LocalRoots.
GetMainFrame()->ForEachRenderFrameHost(base::BindRepeating(
[](bool active, RenderFrameHostImpl* render_frame_host) {
if (render_frame_host->is_local_root()) {
render_frame_host->GetRenderWidgetHost()->SetActive(active);
}
},
active));
}
TextInputManager* WebContentsImpl::GetTextInputManager() {
if (suppress_ime_events_for_testing_)
return nullptr;
if (GetOuterWebContents())
return GetOuterWebContents()->GetTextInputManager();
if (!text_input_manager_ && !browser_plugin_guest_) {
text_input_manager_ = std::make_unique<TextInputManager>(
GetBrowserContext() &&
!GetBrowserContext()->IsOffTheRecord() /* should_do_learning */);
}
return text_input_manager_.get();
}
bool WebContentsImpl::IsWidgetForPrimaryMainFrame(
RenderWidgetHostImpl* render_widget_host) {
return render_widget_host == GetMainFrame()->GetRenderWidgetHost();
}
BrowserAccessibilityManager*
WebContentsImpl::GetRootBrowserAccessibilityManager() {
RenderFrameHostImpl* rfh = static_cast<RenderFrameHostImpl*>(GetMainFrame());
return rfh ? rfh->browser_accessibility_manager() : nullptr;
}
BrowserAccessibilityManager*
WebContentsImpl::GetOrCreateRootBrowserAccessibilityManager() {
RenderFrameHostImpl* rfh = static_cast<RenderFrameHostImpl*>(GetMainFrame());
return rfh ? rfh->GetOrCreateBrowserAccessibilityManager() : nullptr;
}
void WebContentsImpl::ExecuteEditCommand(
const std::string& command,
const absl::optional<std::u16string>& value) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::ExecuteEditCommand");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->ExecuteEditCommand(command, value);
}
void WebContentsImpl::MoveRangeSelectionExtent(const gfx::Point& extent) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::MoveRangeSelectionExtent");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->MoveRangeSelectionExtent(extent);
}
void WebContentsImpl::SelectRange(const gfx::Point& base,
const gfx::Point& extent) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SelectRange");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->SelectRange(base, extent);
}
void WebContentsImpl::MoveCaret(const gfx::Point& extent) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::MoveCaret");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->MoveCaret(extent);
}
void WebContentsImpl::AdjustSelectionByCharacterOffset(
int start_adjust,
int end_adjust,
bool show_selection_menu) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::AdjustSelectionByCharacterOffset");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
using blink::mojom::SelectionMenuBehavior;
input_handler->AdjustSelectionByCharacterOffset(
start_adjust, end_adjust,
show_selection_menu ? SelectionMenuBehavior::kShow
: SelectionMenuBehavior::kHide);
}
void WebContentsImpl::ResizeDueToAutoResize(
RenderWidgetHostImpl* render_widget_host,
const gfx::Size& new_size) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::ResizeDueToAutoResize",
"render_widget_host", render_widget_host);
if (render_widget_host != GetRenderViewHost()->GetWidget())
return;
if (delegate_)
delegate_->ResizeDueToAutoResize(this, new_size);
}
WebContents* WebContentsImpl::OpenURL(const OpenURLParams& params) {
TRACE_EVENT1("content", "WebContentsImpl::OpenURL", "url", params.url);
#if DCHECK_IS_ON()
DCHECK(params.Valid());
#endif
if (!delegate_) {
// Embedder can delay setting a delegate on new WebContents with
// WebContentsDelegate::ShouldResumeRequestsForCreatedWindow. In the mean
// time, navigations, including the initial one, that goes through OpenURL
// should be delayed until embedder is ready to resume loading.
delayed_open_url_params_ = std::make_unique<OpenURLParams>(params);
// If there was a navigation deferred when creating the window through
// CreateNewWindow, drop it in favor of this navigation.
delayed_load_url_params_.reset();
return nullptr;
}
RenderFrameHost* source_render_frame_host = RenderFrameHost::FromID(
params.source_render_process_id, params.source_render_frame_id);
// Prevent frames that are not active (e.g. a prerendering page) from opening
// new windows, tabs, popups, etc.
if (params.disposition != WindowOpenDisposition::CURRENT_TAB &&
source_render_frame_host && !source_render_frame_host->IsActive()) {
return nullptr;
}
if (params.frame_tree_node_id != FrameTreeNode::kFrameTreeNodeInvalidId) {
if (auto* frame_tree_node =
FrameTreeNode::GloballyFindByID(params.frame_tree_node_id)) {
// If a frame tree node ID is specified and it exists, ensure it is for a
// node within this WebContents. Note: this WebContents could be hosting
// multiple frame trees (e.g. prerendering) so it's not enough to check
// against this->primary_frame_tree_. Check against page_delegate(), which
// is always a WebContentsImpl, while delegate() may be implemented by
// something else such as for prerendered frame trees.
FrameTree* frame_tree = frame_tree_node->frame_tree();
CHECK_EQ(frame_tree->page_delegate(), this);
// Prerendering and fenced frame navigations are hidden from embedders.
// If the navigation is targeting a frame in a prerendering or fenced
// frame tree, we shouldn't run that navigation through the embedder
// delegate. Embedder implementations of
// `WebContentsDelegate::OpenURLFromTab` assume that the primary
// frame tree Navigation controller should be used for navigating.
// Instead, we just navigate directly on the relevant frame
// tree.
if (frame_tree->type() == FrameTree::Type::kPrerender ||
frame_tree->type() == FrameTree::Type::kFencedFrame) {
DCHECK_EQ(params.disposition, WindowOpenDisposition::CURRENT_TAB);
frame_tree->controller().LoadURLWithParams(
NavigationController::LoadURLParams(params));
return this;
}
} else {
// If the node doesn't exist it was probably removed from its frame tree.
// In that case, abort since continuing would navigate the root frame.
return nullptr;
}
}
WebContents* new_contents = delegate_->OpenURLFromTab(this, params);
if (source_render_frame_host && params.source_site_instance) {
CHECK_EQ(source_render_frame_host->GetSiteInstance(),
params.source_site_instance.get());
}
if (new_contents && source_render_frame_host && new_contents != this) {
observers_.NotifyObservers(
&WebContentsObserver::DidOpenRequestedURL, new_contents,
source_render_frame_host, params.url, params.referrer,
params.disposition, params.transition, params.started_from_context_menu,
params.is_renderer_initiated);
}
return new_contents;
}
void WebContentsImpl::SetHistoryOffsetAndLengthForView(
RenderViewHost* render_view_host,
int history_offset,
int history_length) {
OPTIONAL_TRACE_EVENT2(
"content", "WebContentsImpl::SetHistoryOffsetAndLengthForView",
"history_offset", history_offset, "history_length", history_length);
if (auto& broadcast = static_cast<RenderViewHostImpl*>(render_view_host)
->GetAssociatedPageBroadcast())
broadcast->SetHistoryOffsetAndLength(history_offset, history_length);
}
void WebContentsImpl::ReloadFocusedFrame() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::ReloadFocusedFrame");
RenderFrameHost* focused_frame = GetFocusedFrame();
if (!focused_frame)
return;
focused_frame->Reload();
}
void WebContentsImpl::Undo() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Undo");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->Undo();
RecordAction(base::UserMetricsAction("Undo"));
}
void WebContentsImpl::Redo() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Redo");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->Redo();
RecordAction(base::UserMetricsAction("Redo"));
}
void WebContentsImpl::Cut() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Cut");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->Cut();
RecordAction(base::UserMetricsAction("Cut"));
}
void WebContentsImpl::Copy() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Copy");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->Copy();
RecordAction(base::UserMetricsAction("Copy"));
}
void WebContentsImpl::CopyToFindPboard() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::CopyToFindPboard");
#if BUILDFLAG(IS_MAC)
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
// Windows/Linux don't have the concept of a find pasteboard.
input_handler->CopyToFindPboard();
RecordAction(base::UserMetricsAction("CopyToFindPboard"));
#endif
}
void WebContentsImpl::Paste() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Paste");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->Paste();
observers_.NotifyObservers(&WebContentsObserver::OnPaste);
RecordAction(base::UserMetricsAction("Paste"));
}
void WebContentsImpl::PasteAndMatchStyle() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::PasteAndMatchStyle");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->PasteAndMatchStyle();
observers_.NotifyObservers(&WebContentsObserver::OnPaste);
RecordAction(base::UserMetricsAction("PasteAndMatchStyle"));
}
void WebContentsImpl::Delete() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Delete");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->Delete();
RecordAction(base::UserMetricsAction("DeleteSelection"));
}
void WebContentsImpl::SelectAll() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SelectAll");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->SelectAll();
RecordAction(base::UserMetricsAction("SelectAll"));
}
void WebContentsImpl::CollapseSelection() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::CollapseSelection");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->CollapseSelection();
}
void WebContentsImpl::ScrollToTopOfDocument() {
ExecuteEditCommand("ScrollToBeginningOfDocument", absl::nullopt);
}
void WebContentsImpl::ScrollToBottomOfDocument() {
ExecuteEditCommand("ScrollToEndOfDocument", absl::nullopt);
}
void WebContentsImpl::Replace(const std::u16string& word) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Replace");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->Replace(word);
}
void WebContentsImpl::ReplaceMisspelling(const std::u16string& word) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::ReplaceMisspelling");
auto* input_handler = GetFocusedFrameWidgetInputHandler();
if (!input_handler)
return;
input_handler->ReplaceMisspelling(word);
}
void WebContentsImpl::NotifyContextMenuClosed(const GURL& link_followed) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::NotifyContextMenuClosed");
RenderFrameHost* focused_frame = GetFocusedFrame();
if (!focused_frame)
return;
if (context_menu_client_)
context_menu_client_->ContextMenuClosed(link_followed);
context_menu_client_.reset();
}
void WebContentsImpl::ExecuteCustomContextMenuCommand(
int action,
const GURL& link_followed) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::ExecuteCustomContextMenuCommand",
"action", action);
RenderFrameHost* focused_frame = GetFocusedFrame();
if (!focused_frame)
return;
if (context_menu_client_)
context_menu_client_->CustomContextMenuAction(action);
}
gfx::NativeView WebContentsImpl::GetNativeView() {
return view_->GetNativeView();
}
gfx::NativeView WebContentsImpl::GetContentNativeView() {
return view_->GetContentNativeView();
}
gfx::NativeWindow WebContentsImpl::GetTopLevelNativeWindow() {
return view_->GetTopLevelNativeWindow();
}
gfx::Rect WebContentsImpl::GetViewBounds() {
return view_->GetViewBounds();
}
gfx::Rect WebContentsImpl::GetContainerBounds() {
return view_->GetContainerBounds();
}
DropData* WebContentsImpl::GetDropData() {
return view_->GetDropData();
}
void WebContentsImpl::Focus() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Focus");
view_->Focus();
}
void WebContentsImpl::SetInitialFocus() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SetInitialFocus");
view_->SetInitialFocus();
}
void WebContentsImpl::StoreFocus() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::StoreFocus");
view_->StoreFocus();
}
void WebContentsImpl::RestoreFocus() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::RestoreFocus");
view_->RestoreFocus();
}
void WebContentsImpl::FocusThroughTabTraversal(bool reverse) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::FocusThroughTabTraversal",
"reverse", reverse);
view_->FocusThroughTabTraversal(reverse);
}
bool WebContentsImpl::IsSavable() {
// WebKit creates Document object when MIME type is application/xhtml+xml,
// so we also support this MIME type.
std::string mime_type = GetContentsMimeType();
return mime_type == "text/html" || mime_type == "text/xml" ||
mime_type == "application/xhtml+xml" || mime_type == "text/plain" ||
mime_type == "text/css" ||
blink::IsSupportedJavascriptMimeType(mime_type);
}
void WebContentsImpl::OnSavePage() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::OnSavePage");
// If we can not save the page, try to download it.
if (!IsSavable()) {
download::RecordSavePackageEvent(
download::SAVE_PACKAGE_DOWNLOAD_ON_NON_HTML);
SaveFrame(GetLastCommittedURL(), Referrer(), GetMainFrame());
return;
}
Stop();
// Create the save package and possibly prompt the user for the name to save
// the page as. The user prompt is an asynchronous operation that runs on
// another thread.
save_package_ = new SavePackage(GetPrimaryPage());
save_package_->GetSaveInfo();
}
// Used in automated testing to bypass prompting the user for file names.
// Instead, the names and paths are hard coded rather than running them through
// file name sanitation and extension / mime checking.
bool WebContentsImpl::SavePage(const base::FilePath& main_file,
const base::FilePath& dir_path,
SavePageType save_type) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::SavePage", "main_file",
main_file, "dir_path", dir_path);
// Stop the page from navigating.
Stop();
save_package_ =
new SavePackage(GetPrimaryPage(), save_type, main_file, dir_path);
return save_package_->Init(SavePackageDownloadCreatedCallback());
}
void WebContentsImpl::SaveFrame(const GURL& url,
const Referrer& referrer,
RenderFrameHost* rfh) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SaveFrame");
SaveFrameWithHeaders(url, referrer, std::string(), std::u16string(), rfh);
}
void WebContentsImpl::SaveFrameWithHeaders(
const GURL& url,
const Referrer& referrer,
const std::string& headers,
const std::u16string& suggested_filename,
RenderFrameHost* rfh) {
DCHECK(rfh);
auto& rfhi = *static_cast<RenderFrameHostImpl*>(rfh);
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::SaveFrameWithHeaders",
"url", url, "headers", headers);
// Check and see if the guest can handle this.
if (delegate_) {
WebContents* guest_web_contents = nullptr;
if (browser_plugin_embedder_) {
BrowserPluginGuest* guest = browser_plugin_embedder_->GetFullPageGuest();
if (guest)
guest_web_contents = guest->GetWebContents();
} else if (browser_plugin_guest_) {
guest_web_contents = this;
}
if (guest_web_contents && delegate_->GuestSaveFrame(guest_web_contents))
return;
}
if (!GetLastCommittedURL().is_valid())
return;
if (delegate_ && delegate_->SaveFrame(url, referrer, rfh))
return;
int64_t post_id = -1;
if (rfhi.is_main_frame()) {
NavigationEntry* entry =
rfhi.frame_tree()->controller().GetLastCommittedEntry();
if (entry)
post_id = entry->GetPostID();
}
net::NetworkTrafficAnnotationTag traffic_annotation =
net::DefineNetworkTrafficAnnotation("download_web_contents_frame", R"(
semantics {
sender: "Save Page Action"
description:
"Saves the given frame's URL to the local file system."
trigger:
"The user has triggered a save operation on the frame through a "
"context menu or other mechanism."
data: "None."
destination: WEBSITE
}
policy {
cookies_allowed: YES
cookies_store: "user"
setting:
"This feature cannot be disabled by settings, but it's is only "
"triggered by user request."
policy_exception_justification: "Not implemented."
})");
auto params = std::make_unique<download::DownloadUrlParameters>(
url, rfh->GetProcess()->GetID(), rfh->GetRoutingID(), traffic_annotation);
params->set_referrer(referrer.url);
params->set_referrer_policy(
Referrer::ReferrerPolicyForUrlRequest(referrer.policy));
params->set_post_id(post_id);
if (post_id >= 0)
params->set_method("POST");
params->set_prompt(true);
if (!headers.empty()) {
for (download::DownloadUrlParameters::RequestHeadersNameValuePair
key_value : ParseDownloadHeaders(headers)) {
params->add_request_header(key_value.first, key_value.second);
}
}
params->set_prefer_cache(true);
params->set_suggested_name(suggested_filename);
params->set_download_source(download::DownloadSource::WEB_CONTENTS_API);
params->set_isolation_info(rfhi.ComputeIsolationInfoForNavigation(url));
GetBrowserContext()->GetDownloadManager()->DownloadUrl(std::move(params));
}
void WebContentsImpl::GenerateMHTML(
const MHTMLGenerationParams& params,
base::OnceCallback<void(int64_t)> callback) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::GenerateMHTML");
base::OnceCallback<void(const MHTMLGenerationResult&)> wrapper_callback =
base::BindOnce(
[](base::OnceCallback<void(int64_t)> size_callback,
const MHTMLGenerationResult& result) {
std::move(size_callback).Run(result.file_size);
},
std::move(callback));
MHTMLGenerationManager::GetInstance()->SaveMHTML(this, params,
std::move(wrapper_callback));
}
void WebContentsImpl::GenerateMHTMLWithResult(
const MHTMLGenerationParams& params,
MHTMLGenerationResult::GenerateMHTMLCallback callback) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::GenerateMHTMLWithResult");
MHTMLGenerationManager::GetInstance()->SaveMHTML(this, params,
std::move(callback));
}
void WebContentsImpl::GenerateWebBundle(
const base::FilePath& file_path,
base::OnceCallback<void(uint64_t /* file_size */,
data_decoder::mojom::WebBundlerError)> callback) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::GenerateWebBundle",
"file_path", file_path);
SaveAsWebBundleJob::Start(this, file_path, std::move(callback));
}
const std::string& WebContentsImpl::GetContentsMimeType() {
return GetPrimaryPage().contents_mime_type();
}
blink::RendererPreferences* WebContentsImpl::GetMutableRendererPrefs() {
return &renderer_preferences_;
}
void WebContentsImpl::Close() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Close");
Close(GetRenderViewHost());
}
void WebContentsImpl::DragSourceEndedAt(float client_x,
float client_y,
float screen_x,
float screen_y,
ui::mojom::DragOperation operation,
RenderWidgetHost* source_rwh) {
OPTIONAL_TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("content.verbose"),
"WebContentsImpl::DragSourceEndedAt");
if (source_rwh) {
source_rwh->DragSourceEndedAt(gfx::PointF(client_x, client_y),
gfx::PointF(screen_x, screen_y), operation,
base::DoNothing());
}
}
void WebContentsImpl::LoadStateChanged(network::mojom::LoadInfoPtr load_info) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::LoadStateChanged", "host",
load_info->host, "load_state", load_info->load_state);
// If the new load state isn't progressed as far as the current loading state
// or both are sending an upload and the upload is smaller, return early
// discarding the new load state.
if (load_info_timestamp_ + kUpdateLoadStatesInterval > load_info->timestamp &&
(load_state_.state > load_info->load_state ||
(load_state_.state == load_info->load_state &&
load_state_.state == net::LOAD_STATE_SENDING_REQUEST &&
upload_size_ > load_info->upload_size))) {
return;
}
load_info_timestamp_ = load_info->timestamp;
std::u16string host16 = url_formatter::IDNToUnicode(load_info->host);
// Drop no-op updates.
if (load_state_.state == load_info->load_state &&
load_state_.param == load_info->state_param &&
upload_position_ == load_info->upload_position &&
upload_size_ == load_info->upload_size && load_state_host_ == host16) {
return;
}
load_state_ = net::LoadStateWithParam(
static_cast<net::LoadState>(load_info->load_state),
load_info->state_param);
load_state_host_ = host16;
}
void WebContentsImpl::SetVisibilityAndNotifyObservers(Visibility visibility) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::SetVisibilityAndNotifyObservers",
"visibility", static_cast<int>(visibility));
const Visibility previous_visibility = visibility_;
visibility_ = visibility;
// Notify observers if the visibility changed or if WasShown() is being called
// for the first time.
if (visibility != previous_visibility ||
(visibility == Visibility::VISIBLE && !did_first_set_visible_)) {
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.OnVisibilityChanged");
observers_.NotifyObservers(&WebContentsObserver::OnVisibilityChanged,
visibility);
}
}
void WebContentsImpl::NotifyWebContentsFocused(
RenderWidgetHost* render_widget_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::NotifyWebContentsFocused",
"render_widget_host", render_widget_host);
observers_.NotifyObservers(&WebContentsObserver::OnWebContentsFocused,
render_widget_host);
}
void WebContentsImpl::NotifyWebContentsLostFocus(
RenderWidgetHost* render_widget_host) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::NotifyWebContentsLostFocus",
"render_widget_host", render_widget_host);
observers_.NotifyObservers(&WebContentsObserver::OnWebContentsLostFocus,
render_widget_host);
}
void WebContentsImpl::SystemDragEnded(RenderWidgetHost* source_rwh) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SystemDragEnded",
"render_widget_host", source_rwh);
if (source_rwh)
source_rwh->DragSourceSystemDragEnded();
}
void WebContentsImpl::SetClosedByUserGesture(bool value) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SetClosedByUserGesture",
"value", value);
closed_by_user_gesture_ = value;
}
bool WebContentsImpl::GetClosedByUserGesture() {
return closed_by_user_gesture_;
}
int WebContentsImpl::GetMinimumZoomPercent() {
return minimum_zoom_percent_;
}
int WebContentsImpl::GetMaximumZoomPercent() {
return maximum_zoom_percent_;
}
void WebContentsImpl::SetPageScale(float scale_factor) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SetPageScale",
"scale_factor", scale_factor);
GetMainFrame()->GetAssociatedLocalMainFrame()->SetScaleFactor(scale_factor);
}
gfx::Size WebContentsImpl::GetPreferredSize() {
return IsBeingCaptured() ? preferred_size_for_capture_ : preferred_size_;
}
bool WebContentsImpl::GotResponseToLockMouseRequest(
blink::mojom::PointerLockResult result) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::GotResponseToLockMouseRequest");
if (mouse_lock_widget_) {
auto* web_contents =
WebContentsImpl::FromRenderWidgetHostImpl(mouse_lock_widget_);
if (web_contents != this)
return web_contents->GotResponseToLockMouseRequest(result);
if (mouse_lock_widget_->GotResponseToLockMouseRequest(result))
return true;
}
for (WebContentsImpl* current = this; current;
current = current->GetOuterWebContents()) {
current->mouse_lock_widget_ = nullptr;
}
return false;
}
void WebContentsImpl::GotLockMousePermissionResponse(bool allowed) {
GotResponseToLockMouseRequest(
allowed ? blink::mojom::PointerLockResult::kSuccess
: blink::mojom::PointerLockResult::kPermissionDenied);
}
void WebContentsImpl::DropMouseLockForTesting() {
if (mouse_lock_widget_) {
mouse_lock_widget_->RejectMouseLockOrUnlockIfNecessary(
blink::mojom::PointerLockResult::kUnknownError);
for (WebContentsImpl* current = this; current;
current = current->GetOuterWebContents()) {
current->mouse_lock_widget_ = nullptr;
}
}
}
bool WebContentsImpl::GotResponseToKeyboardLockRequest(bool allowed) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::GotResponseToKeyboardLockRequest",
"allowed", allowed);
if (!keyboard_lock_widget_)
return false;
if (WebContentsImpl::FromRenderWidgetHostImpl(keyboard_lock_widget_) !=
this) {
NOTREACHED();
return false;
}
// KeyboardLock is only supported when called by the top-level browsing
// context and is not supported in embedded content scenarios.
if (GetOuterWebContents())
return false;
keyboard_lock_widget_->GotResponseToKeyboardLockRequest(allowed);
return true;
}
bool WebContentsImpl::HasOpener() {
return GetOpener() != nullptr;
}
RenderFrameHostImpl* WebContentsImpl::GetOpener() {
FrameTreeNode* opener_ftn = primary_frame_tree_.root()->opener();
return opener_ftn ? opener_ftn->current_frame_host() : nullptr;
}
bool WebContentsImpl::HasLiveOriginalOpenerChain() {
return GetFirstWebContentsInLiveOriginalOpenerChain() != nullptr;
}
WebContents* WebContentsImpl::GetFirstWebContentsInLiveOriginalOpenerChain() {
FrameTreeNode* opener_ftn =
primary_frame_tree_.root()
->first_live_main_frame_in_original_opener_chain();
return opener_ftn ? WebContents::FromRenderFrameHost(
opener_ftn->current_frame_host())
: nullptr;
}
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC)
void WebContentsImpl::DidChooseColorInColorChooser(SkColor color) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::DidChooseColorInColorChooser",
"color", color);
if (color_chooser_holder_)
color_chooser_holder_->DidChooseColorInColorChooser(color);
}
void WebContentsImpl::DidEndColorChooser() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::DidEndColorChooser");
color_chooser_holder_.reset();
}
#endif // BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC)
int WebContentsImpl::DownloadImage(
const GURL& url,
bool is_favicon,
const gfx::Size& preferred_size,
uint32_t max_bitmap_size,
bool bypass_cache,
WebContents::ImageDownloadCallback callback) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::DownloadImage", "url",
url);
return DownloadImageInFrame(GlobalRenderFrameHostId(), url, is_favicon,
preferred_size, max_bitmap_size, bypass_cache,
std::move(callback));
}
int WebContentsImpl::DownloadImageInFrame(
const GlobalRenderFrameHostId& initiator_frame_routing_id,
const GURL& url,
bool is_favicon,
const gfx::Size& preferred_size,
uint32_t max_bitmap_size,
bool bypass_cache,
WebContents::ImageDownloadCallback callback) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::DownloadImageInFrame");
DCHECK_CURRENTLY_ON(BrowserThread::UI);
static int next_image_download_id = 0;
const int download_id = ++next_image_download_id;
RenderFrameHostImpl* initiator_frame =
initiator_frame_routing_id.child_id
? RenderFrameHostImpl::FromID(initiator_frame_routing_id)
: GetMainFrame();
if (!initiator_frame->IsRenderFrameLive()) {
// If the renderer process is dead (i.e. crash, or memory pressure on
// Android), the downloader service will be invalid. Pre-Mojo, this would
// hang the callback indefinitely since the IPC would be dropped. Now,
// respond with a 400 HTTP error code to indicate that something went wrong.
GetUIThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(
&WebContentsImpl::OnDidDownloadImage, weak_factory_.GetWeakPtr(),
initiator_frame->GetWeakPtr(), std::move(callback), download_id,
url, 400, std::vector<SkBitmap>(), std::vector<gfx::Size>()));
return download_id;
}
initiator_frame->GetMojoImageDownloader()->DownloadImage(
url, is_favicon, preferred_size, max_bitmap_size, bypass_cache,
base::BindOnce(&WebContentsImpl::OnDidDownloadImage,
weak_factory_.GetWeakPtr(), initiator_frame->GetWeakPtr(),
std::move(callback), download_id, url));
return download_id;
}
void WebContentsImpl::Find(int request_id,
const std::u16string& search_text,
blink::mojom::FindOptionsPtr options,
bool skip_delay) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Find");
// Cowardly refuse to search for no text.
if (search_text.empty()) {
NOTREACHED();
return;
}
GetOrCreateFindRequestManager()->Find(request_id, search_text,
std::move(options), skip_delay);
}
void WebContentsImpl::StopFinding(StopFindAction action) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::StopFinding");
if (FindRequestManager* manager = GetFindRequestManager())
manager->StopFinding(action);
}
bool WebContentsImpl::WasEverAudible() {
return was_ever_audible_;
}
void WebContentsImpl::ExitFullscreen(bool will_cause_resize) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::ExitFullscreen");
// Clean up related state and initiate the fullscreen exit.
GetRenderViewHost()->GetWidget()->RejectMouseLockOrUnlockIfNecessary(
blink::mojom::PointerLockResult::kUserRejected);
ExitFullscreenMode(will_cause_resize);
}
base::ScopedClosureRunner WebContentsImpl::ForSecurityDropFullscreen(
int64_t display_id) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::ForSecurityDropFullscreen",
"display_id", display_id);
// Kick WebContentses that are "related" to this WebContents out of
// fullscreen. This needs to be done with two passes, because it is simple to
// walk _up_ the chain of openers and outer contents, but it not simple to
// walk _down_ the chain.
// First, determine if any WebContents that is in fullscreen has this
// WebContents as an upstream contents. Drop that WebContents out of
// fullscreen if it does. This is theoretically quadratic-ish (fullscreen
// contentses x each one's opener length) but neither of those is expected to
// ever be a large number.
auto* screen = display::Screen::GetScreen();
auto fullscreen_set_copy = *FullscreenContentsSet(GetBrowserContext());
for (auto* fullscreen_contents : fullscreen_set_copy) {
// Checking IsFullscreen() for tabs in the fullscreen set may seem
// redundant, but teeeeechnically fullscreen is run by the delegate, and
// it's possible that the delegate's notion of fullscreen may have changed
// outside of WebContents's notice.
if (fullscreen_contents->IsFullscreen() &&
(display_id == display::kInvalidDisplayId || !screen ||
display_id ==
screen->GetDisplayNearestView(fullscreen_contents->GetNativeView())
.id())) {
auto opener_contentses = GetAllOpeningWebContents(fullscreen_contents);
if (opener_contentses.count(this))
fullscreen_contents->ExitFullscreen(true);
}
}
// Second, walk upstream from this WebContents, and drop the fullscreen of
// all WebContentses that are in fullscreen. Block all the WebContentses in
// the chain from entering fullscreen while the returned closure runner is
// alive. It's OK that this set doesn't contain downstream WebContentses, as
// any request to enter fullscreen will have the upstream of the WebContents
// checked. (See CanEnterFullscreenMode().)
std::vector<base::WeakPtr<WebContentsImpl>> blocked_contentses;
for (auto* opener : GetAllOpeningWebContents(this)) {
// Drop fullscreen if the WebContents is in it, and...
if (opener->IsFullscreen() &&
(display_id == display::kInvalidDisplayId || !screen ||
display_id ==
screen->GetDisplayNearestView(opener->GetNativeView()).id()))
opener->ExitFullscreen(true);
// ...block the WebContents from entering fullscreen until further notice.
++opener->fullscreen_blocker_count_;
blocked_contentses.push_back(opener->weak_factory_.GetWeakPtr());
}
return base::ScopedClosureRunner(base::BindOnce(
[](std::vector<base::WeakPtr<WebContentsImpl>> blocked_contentses) {
for (base::WeakPtr<WebContentsImpl>& web_contents :
blocked_contentses) {
if (web_contents) {
DCHECK_GT(web_contents->fullscreen_blocker_count_, 0);
--web_contents->fullscreen_blocker_count_;
}
}
},
std::move(blocked_contentses)));
}
void WebContentsImpl::ResumeLoadingCreatedWebContents() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::ResumeLoadingCreatedWebContents");
if (delayed_load_url_params_.get()) {
DCHECK(!delayed_open_url_params_);
GetController().LoadURLWithParams(*delayed_load_url_params_.get());
delayed_load_url_params_.reset(nullptr);
return;
}
if (delayed_open_url_params_.get()) {
OpenURL(*delayed_open_url_params_.get());
delayed_open_url_params_.reset(nullptr);
return;
}
// Renderer-created main frames wait for the renderer to request for them to
// perform navigations and to be shown. We signal that this condition is
// satisfied by calling Init().
if (is_resume_pending_) {
is_resume_pending_ = false;
GetMainFrame()->Init();
}
}
bool WebContentsImpl::FocusLocationBarByDefault() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::FocusLocationBarByDefault");
if (should_focus_location_bar_by_default_)
return true;
return delegate_ && delegate_->ShouldFocusLocationBarByDefault(this);
}
void WebContentsImpl::DidStartNavigation(NavigationHandle* navigation_handle) {
TRACE_EVENT1("navigation", "WebContentsImpl::DidStartNavigation",
"navigation_handle", navigation_handle);
{
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.DidStartNavigation");
observers_.NotifyObservers(&WebContentsObserver::DidStartNavigation,
navigation_handle);
}
if (navigation_handle->IsInPrimaryMainFrame()) {
// When the browser is started with about:blank as the startup URL, focus
// the location bar (which will also select its contents) so people can
// simply begin typing to navigate elsewhere.
//
// We need to be careful not to trigger this for anything other than the
// startup navigation. In particular, if we allow an attacker to open a
// popup to about:blank, then navigate, focusing the Omnibox will cause the
// end of the new URL to be scrolled into view instead of the start,
// allowing the attacker to spoof other URLs. The conditions checked here
// are all aimed at ensuring no such attacker-controlled navigation can
// trigger this.
should_focus_location_bar_by_default_ =
GetController().IsInitialNavigation() &&
!navigation_handle->IsRendererInitiated() &&
navigation_handle->GetURL() == url::kAboutBlankURL;
}
}
void WebContentsImpl::DidRedirectNavigation(
NavigationHandle* navigation_handle) {
TRACE_EVENT1("navigation", "WebContentsImpl::DidRedirectNavigation",
"navigation_handle", navigation_handle);
{
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.DidRedirectNavigation");
observers_.NotifyObservers(&WebContentsObserver::DidRedirectNavigation,
navigation_handle);
}
// Notify accessibility if this is a reload. This has to called on the
// BrowserAccessibilityManager associated with the old RFHI.
if (navigation_handle->GetReloadType() != ReloadType::NONE) {
NavigationRequest* request = NavigationRequest::From(navigation_handle);
BrowserAccessibilityManager* manager =
request->frame_tree_node()
->current_frame_host()
->browser_accessibility_manager();
if (manager)
manager->UserIsReloading();
}
}
void WebContentsImpl::ReadyToCommitNavigation(
NavigationHandle* navigation_handle) {
TRACE_EVENT1("navigation", "WebContentsImpl::ReadyToCommitNavigation",
"navigation_handle", navigation_handle);
// Cross-document navigation of the top-level frame resets the capture
// handle config. Using IsInPrimaryMainFrame is valid here since the browser
// caches this state for the active main frame only.
if (!navigation_handle->IsSameDocument() &&
navigation_handle->IsInPrimaryMainFrame()) {
SetCaptureHandleConfig(blink::mojom::CaptureHandleConfig::New());
}
observers_.NotifyObservers(&WebContentsObserver::ReadyToCommitNavigation,
navigation_handle);
// If any domains are blocked from accessing 3D APIs because they may
// have caused the GPU to reset recently, unblock them here if the user
// initiated this navigation. This implies that the user was involved in
// the decision to navigate, so there's no concern about
// denial-of-service issues. Want to do this as early as
// possible to avoid race conditions with pages attempting to access
// WebGL early on.
//
// TODO(crbug.com/617904): currently navigations initiated by the browser
// (reload button, reload menu option, pressing return in the Omnibox)
// return false from HasUserGesture(). If or when that is addressed,
// remove the check for IsRendererInitiated() below.
//
// TODO(crbug.com/832180): HasUserGesture comes from the renderer
// process and isn't validated. Until it is, don't trust it.
if (!navigation_handle->IsRendererInitiated()) {
GpuDataManagerImpl::GetInstance()->UnblockDomainFrom3DAPIs(
navigation_handle->GetURL());
}
if (navigation_handle->IsSameDocument())
return;
// SSLInfo is not needed on subframe navigations since the main-frame
// certificate is the only one that can be inspected (using the info
// bubble) without refreshing the page with DevTools open.
// We don't call DidStartResourceResponse on net errors, since that results on
// existing cert exceptions being revoked, which leads to weird behavior with
// committed interstitials or while offline. We only need the error check for
// the main frame case.
if (navigation_handle->IsInMainFrame() &&
navigation_handle->GetNetErrorCode() == net::OK) {
static_cast<NavigationRequest*>(navigation_handle)
->frame_tree_node()
->frame_tree()
->controller()
.ssl_manager()
->DidStartResourceResponse(
url::SchemeHostPort(navigation_handle->GetURL()),
navigation_handle->GetSSLInfo().has_value()
? net::IsCertStatusError(
navigation_handle->GetSSLInfo()->cert_status)
: false);
}
}
void WebContentsImpl::DidFinishNavigation(NavigationHandle* navigation_handle) {
TRACE_EVENT1("navigation", "WebContentsImpl::DidFinishNavigation",
"navigation_handle", navigation_handle);
{
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.DidFinishNavigation");
observers_.NotifyObservers(&WebContentsObserver::DidFinishNavigation,
navigation_handle);
}
if (display_cutout_host_impl_)
display_cutout_host_impl_->DidFinishNavigation(navigation_handle);
if (navigation_handle->HasCommitted()) {
// TODO(domfarolino, dmazzoni): Do this using WebContentsObserver. See
// https://crbug.com/981271.
BrowserAccessibilityManager* manager =
static_cast<RenderFrameHostImpl*>(
navigation_handle->GetRenderFrameHost())
->browser_accessibility_manager();
if (manager) {
if (navigation_handle->IsErrorPage()) {
manager->NavigationFailed();
} else {
manager->NavigationSucceeded();
}
}
// TODO(crbug.com/1223113) : Move this tracking to PageImpl.
if (navigation_handle->IsInPrimaryMainFrame() &&
!navigation_handle->IsSameDocument()) {
was_ever_audible_ = false;
}
if (!navigation_handle->IsSameDocument())
last_screen_orientation_change_time_ = base::TimeTicks();
}
// If we didn't end up on about:blank after setting this in DidStartNavigation
// then don't focus the location bar.
if (should_focus_location_bar_by_default_ &&
navigation_handle->GetURL() != url::kAboutBlankURL) {
should_focus_location_bar_by_default_ = false;
}
if (navigation_handle->IsInPrimaryMainFrame() &&
first_primary_navigation_completed_) {
RecordMaxFrameCountUMA(max_loaded_frame_count_);
}
// If navigation has successfully finished in the main frame, set
// |first_primary_navigation_completed_| to true so that we will record
// |max_loaded_frame_count_| above when future main frame navigations finish.
if (navigation_handle->IsInPrimaryMainFrame() &&
!navigation_handle->IsErrorPage()) {
first_primary_navigation_completed_ = true;
// Navigation has completed in main frame. Reset |max_loaded_frame_count_|.
// |max_loaded_frame_count_| is not necessarily 1 if the navigation was
// served from BackForwardCache.
max_loaded_frame_count_ = GetFrameTreeSize(&primary_frame_tree_);
}
if (web_preferences_) {
// Update the WebPreferences for this WebContents that depends on changes
// that might occur during navigation. This will only update the preferences
// that needs to be updated (and won't cause an update/overwrite preferences
// that needs to stay the same after navigations).
bool value_changed_due_to_override =
GetContentClient()->browser()->OverrideWebPreferencesAfterNavigation(
this, web_preferences_.get());
// We need to update the WebPreferences value on the renderer if the value
// is changed due to the override above, or if the navigation is served from
// the back-forward cache, because the WebPreferences value stored in the
// renderer might be stale (because we don't send WebPreferences updates to
// bfcached renderers). Same for prerendering.
// TODO(rakina): Maybe handle the back-forward cache case in
// ReadyToCommitNavigation instead?
// TODO(https://crbug.com/1194880): Maybe sync RendererPreferences as well?
if (value_changed_due_to_override ||
NavigationRequest::From(navigation_handle)->IsPageActivation()) {
SetWebPreferences(*web_preferences_.get());
}
}
if (navigation_handle->HasCommitted() &&
navigation_handle->IsPrerenderedPageActivation()) {
// We defer favicon and manifest URL updates while prerendering. Upon
// activation, we must inform interested parties about our candidate favicon
// URLs and the manifest URL.
DCHECK(navigation_handle->IsInPrimaryMainFrame());
auto* rfhi = static_cast<RenderFrameHostImpl*>(
navigation_handle->GetRenderFrameHost());
UpdateFaviconURL(rfhi, rfhi->FaviconURLs());
OnManifestUrlChanged(rfhi->GetPage());
// The page might have set its title while prerendering, and if it was, we
// skipped notifying observers then, and we need to notify them now after
// the page is activated.
DCHECK(navigation_handle->IsInPrimaryMainFrame());
NavigationEntryImpl* entry = GetController().GetLastCommittedEntry();
DCHECK(entry);
if (!entry->GetTitle().empty()) {
NotifyTitleUpdateForEntry(entry);
}
}
}
void WebContentsImpl::DidFailLoadWithError(
RenderFrameHostImpl* render_frame_host,
const GURL& url,
int error_code) {
TRACE_EVENT2("content,navigation", "WebContentsImpl::DidFailLoadWithError",
"render_frame_host", render_frame_host, "url", url);
observers_.NotifyObservers(&WebContentsObserver::DidFailLoad,
render_frame_host, url, error_code);
}
void WebContentsImpl::NotifyChangedNavigationState(
InvalidateTypes changed_flags) {
NotifyNavigationStateChanged(changed_flags);
}
bool WebContentsImpl::ShouldAllowRendererInitiatedCrossProcessNavigation(
bool is_outermost_main_frame_navigation) {
OPTIONAL_TRACE_EVENT1(
"content",
"WebContentsImpl::ShouldAllowRendererInitiatedCrossProcessNavigation",
"is_outermost_main_frame_navigation", is_outermost_main_frame_navigation);
if (!delegate_)
return true;
return delegate_->ShouldAllowRendererInitiatedCrossProcessNavigation(
is_outermost_main_frame_navigation);
}
bool WebContentsImpl::ShouldPreserveAbortedURLs() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::ShouldPreserveAbortedURLs");
if (!delegate_)
return false;
return delegate_->ShouldPreserveAbortedURLs(this);
}
void WebContentsImpl::DidNavigateMainFramePreCommit(
FrameTreeNode* frame_tree_node,
bool navigation_is_within_page) {
// The `frame_tree_node` is always a main frame.
DCHECK(frame_tree_node->IsMainFrame());
TRACE_EVENT1("content,navigation",
"WebContentsImpl::DidNavigateMainFramePreCommit",
"navigation_is_within_page", navigation_is_within_page);
const bool is_primary =
frame_tree_node->frame_tree()->type() == FrameTree::Type::kPrimary;
// If running for a non-primary main frame, early out.
if (!is_primary)
return;
// Ensure fullscreen mode is exited before committing the navigation to a
// different page. The next page will not start out assuming it is in
// fullscreen mode.
if (navigation_is_within_page) {
// No page change? Then, the renderer and browser can remain in fullscreen.
return;
}
if (IsFullscreen())
ExitFullscreen(false);
DCHECK(!IsFullscreen());
// Clean up keyboard lock state when navigating.
CancelKeyboardLock(keyboard_lock_widget_);
}
void WebContentsImpl::DidNavigateMainFramePostCommit(
RenderFrameHostImpl* render_frame_host,
const LoadCommittedDetails& details) {
// The render_frame_host is always a main frame.
DCHECK(render_frame_host->is_main_frame());
OPTIONAL_TRACE_EVENT1("content,navigation",
"WebContentsImpl::DidNavigateMainFramePostCommit",
"render_frame_host", render_frame_host);
const bool is_primary_main_frame = render_frame_host->IsInPrimaryMainFrame();
if (details.is_navigation_to_different_page()) {
if (is_primary_main_frame) {
// Clear the status bubble. This is a workaround for a bug where WebKit
// doesn't let us know that the cursor left an element during a
// transition (this is also why the mouse cursor remains as a hand after
// clicking on a link); see bugs 1184641 and 980803. We don't want to
// clear the bubble when a user navigates to a named anchor in the same
// page.
ClearTargetURL();
}
RenderWidgetHostViewBase* rwhvb = static_cast<RenderWidgetHostViewBase*>(
render_frame_host->GetMainFrame()->GetView());
if (rwhvb)
rwhvb->OnDidNavigateMainFrameToNewPage();
}
if (is_primary_main_frame && delegate_)
delegate_->DidNavigatePrimaryMainFramePostCommit(this);
PageImpl& page = render_frame_host->GetPage();
if (page.IsPrimary()) {
// The following events will not fire again if the this is a back-forward
// cache restore or prerendering activation. Fire them ourselves if needed.
if (details.is_navigation_to_different_page() &&
page.did_first_visually_non_empty_paint()) {
OnFirstVisuallyNonEmptyPaint(page);
}
OnThemeColorChanged(page);
OnBackgroundColorChanged(page);
DidInferColorScheme(page);
AXTreeIDForMainFrameHasChanged();
}
}
void WebContentsImpl::DidNavigateAnyFramePostCommit(
RenderFrameHostImpl* render_frame_host,
const LoadCommittedDetails& details) {
OPTIONAL_TRACE_EVENT1("content,navigation",
"WebContentsImpl::DidNavigateAnyFramePostCommit",
"render_frame_host", render_frame_host);
// This function can be called by prerendered frames or other inactive frames,
// we want to guard the dialog cancellations below.
const bool is_active = render_frame_host->IsActive();
// If we navigate off the active non-fenced frame page, close all JavaScript
// dialogs. We do not cancel the dialogs for fenced frames because it can be
// used as a communication channel. Please see also:
// RenderFrameHostManager::UnloadOldFrame in
// content/browser/renderer_host/render_frame_host_manager.cc
//
// TODO(crbug.com/1299379): Note that fenced frames cannot open modal dialogs
// so this only affects dialogs outside the fenced frame tree. If this is ever
// changed then the navigation should be deferred till the dialog from within
// the fenced frame is open.
if (is_active && !render_frame_host->IsNestedWithinFencedFrame() &&
!details.is_same_document) {
CancelActiveAndPendingDialogs();
}
// If this is a user-initiated navigation, start allowing JavaScript dialogs
// again.
if (render_frame_host->last_navigation_started_with_transient_activation() &&
dialog_manager_) {
DCHECK(is_active);
dialog_manager_->CancelDialogs(this, /*reset_state=*/true);
}
}
bool WebContentsImpl::CanOverscrollContent() const {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::CanOverscrollContent");
// Disable overscroll when touch emulation is on. See crbug.com/369938.
if (force_disable_overscroll_content_)
return false;
return delegate_ && delegate_->CanOverscrollContent();
}
void WebContentsImpl::OnThemeColorChanged(PageImpl& page) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnThemeColorChanged",
"page", page);
if (!page.IsPrimary())
return;
if (page.did_first_visually_non_empty_paint() &&
last_sent_theme_color_ != page.theme_color()) {
observers_.NotifyObservers(&WebContentsObserver::DidChangeThemeColor);
last_sent_theme_color_ = page.theme_color();
}
}
void WebContentsImpl::OnBackgroundColorChanged(PageImpl& page) {
if (!page.IsPrimary())
return;
if (page.did_first_visually_non_empty_paint() &&
last_sent_background_color_ != page.background_color()) {
observers_.NotifyObservers(&WebContentsObserver::OnBackgroundColorChanged);
last_sent_background_color_ = page.background_color();
return;
}
if (page.background_color().has_value()) {
if (auto* view = GetRenderWidgetHostView()) {
static_cast<RenderWidgetHostViewBase*>(view)->SetContentBackgroundColor(
page.background_color().value());
}
}
}
void WebContentsImpl::DidInferColorScheme(PageImpl& page) {
// If the page is primary, notify embedders that the current inferred color
// scheme for this WebContents has changed.
if (page.IsPrimary()) {
observers_.NotifyObservers(&WebContentsObserver::InferredColorSchemeUpdated,
page.inferred_color_scheme());
if (page.inferred_color_scheme().has_value()) {
bool dark = page.inferred_color_scheme().value() ==
blink::mojom::PreferredColorScheme::kDark;
base::UmaHistogramBoolean("Power.DarkMode.InferredDarkPageColorScheme",
dark);
if (web_preferences_->preferred_color_scheme ==
blink::mojom::PreferredColorScheme::kDark) {
base::UmaHistogramBoolean(
"Power.DarkMode.DarkColorScheme.InferredDarkPageColorScheme", dark);
}
}
}
}
void WebContentsImpl::DidLoadResourceFromMemoryCache(
RenderFrameHostImpl* source,
const GURL& url,
const std::string& http_method,
const std::string& mime_type,
network::mojom::RequestDestination request_destination,
bool include_credentials) {
OPTIONAL_TRACE_EVENT2("content",
"WebContentsImpl::DidLoadResourceFromMemoryCache",
"render_frame_host", source, "url", url);
observers_.NotifyObservers(
&WebContentsObserver::DidLoadResourceFromMemoryCache, source, url,
mime_type, request_destination);
if (!url.is_valid() || !url.SchemeIsHTTPOrHTTPS())
return;
StoragePartition* partition = source->GetProcess()->GetStoragePartition();
DCHECK(!blink::IsRequestDestinationFrame(request_destination));
partition->GetNetworkContext()->NotifyExternalCacheHit(
url, http_method, source->GetNetworkIsolationKey(),
/*is_subframe_document_resource=*/false,
/*include_credentials=*/include_credentials);
}
void WebContentsImpl::PrimaryMainDocumentElementAvailable() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::PrimaryMainDocumentElementAvailable");
SCOPED_UMA_HISTOGRAM_TIMER(
"WebContentsObserver.PrimaryMainDocumentElementAvailable");
observers_.NotifyObservers(
&WebContentsObserver::PrimaryMainDocumentElementAvailable);
}
void WebContentsImpl::PassiveInsecureContentFound(const GURL& resource_url) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::PassiveInsecureContentFound",
"resource_url", resource_url);
if (delegate_) {
delegate_->PassiveInsecureContentFound(resource_url);
}
}
bool WebContentsImpl::ShouldAllowRunningInsecureContent(
bool allowed_per_prefs,
const url::Origin& origin,
const GURL& resource_url) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::ShouldAllowRunningInsecureContent");
if (delegate_) {
return delegate_->ShouldAllowRunningInsecureContent(this, allowed_per_prefs,
origin, resource_url);
}
return allowed_per_prefs;
}
void WebContentsImpl::ViewSource(RenderFrameHostImpl* frame) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::ViewSource",
"render_frame_host", frame);
DCHECK_EQ(this, WebContents::FromRenderFrameHost(frame));
// Don't do anything if there is no |delegate_| that could accept and show the
// new WebContents containing the view-source.
if (!delegate_)
return;
// Use the last committed entry, since the pending entry hasn't loaded yet and
// won't be copied into the cloned tab.
NavigationEntryImpl* last_committed_entry =
frame->frame_tree()->controller().GetLastCommittedEntry();
if (!last_committed_entry)
return;
FrameNavigationEntry* frame_entry =
last_committed_entry->GetFrameEntry(frame->frame_tree_node());
if (!frame_entry)
return;
// Any new WebContents opened while this WebContents is in fullscreen can be
// used to confuse the user, so drop fullscreen.
base::ScopedClosureRunner fullscreen_block = ForSecurityDropFullscreen();
// The new view source contents will be independent of this contents, so
// release the fullscreen block.
fullscreen_block.RunAndReset();
// We intentionally don't share the SiteInstance with the original frame so
// that view source has a consistent process model and always ends up in a new
// process (https://crbug.com/699493).
scoped_refptr<SiteInstanceImpl> site_instance_for_view_source;
// Referrer and initiator are not important, because view-source should not
// hit the network, but should be served from the cache instead.
Referrer referrer_for_view_source;
absl::optional<url::Origin> initiator_for_view_source = absl::nullopt;
// Do not restore title, derive it from the url.
std::u16string title_for_view_source;
auto navigation_entry = std::make_unique<NavigationEntryImpl>(
site_instance_for_view_source, frame_entry->url(),
referrer_for_view_source, initiator_for_view_source,
title_for_view_source, ui::PAGE_TRANSITION_LINK,
/* is_renderer_initiated = */ false,
/* blob_url_loader_factory = */ nullptr, /* is_initial_entry = */ false);
const GURL url(content::kViewSourceScheme + std::string(":") +
frame_entry->url().spec());
navigation_entry->SetVirtualURL(url);
// View source opens the URL in a new tab as a top-level navigation. A
// top-level navigation may have a different IsolationInfo than the source
// iframe, so preserve the IsolationInfo from the origin frame, to use the
// same network shard and increase chances of a cache hit.
navigation_entry->set_isolation_info(
frame->ComputeIsolationInfoForNavigation(navigation_entry->GetURL()));
// Do not restore scroller position.
// TODO(creis, lukasza, arthursonzogni): Do not reuse the original PageState,
// but start from a new one and only copy the needed data.
const blink::PageState& new_page_state =
frame_entry->page_state().RemoveScrollOffset();
scoped_refptr<FrameNavigationEntry> new_frame_entry =
navigation_entry->root_node()->frame_entry;
new_frame_entry->set_method(frame_entry->method());
new_frame_entry->SetPageState(new_page_state);
// Create a new WebContents, which is used to display the source code.
std::unique_ptr<WebContents> view_source_contents =
Create(CreateParams(GetBrowserContext()));
// Restore the previously created NavigationEntry.
std::vector<std::unique_ptr<NavigationEntry>> navigation_entries;
navigation_entries.push_back(std::move(navigation_entry));
view_source_contents->GetController().Restore(0, RestoreType::kRestored,
&navigation_entries);
// Add |view_source_contents| as a new tab.
gfx::Rect initial_rect;
constexpr bool kUserGesture = true;
bool ignored_was_blocked;
delegate_->AddNewContents(this, std::move(view_source_contents), url,
WindowOpenDisposition::NEW_FOREGROUND_TAB,
initial_rect, kUserGesture, &ignored_was_blocked);
// Note that the |delegate_| could have deleted |view_source_contents| during
// AddNewContents method call.
}
void WebContentsImpl::ResourceLoadComplete(
RenderFrameHostImpl* render_frame_host,
const GlobalRequestID& request_id,
blink::mojom::ResourceLoadInfoPtr resource_load_info) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::ResourceLoadComplete",
"render_frame_host", render_frame_host, "request_id",
request_id);
const blink::mojom::ResourceLoadInfo& resource_load_info_ref =
*resource_load_info;
observers_.NotifyObservers(&WebContentsObserver::ResourceLoadComplete,
render_frame_host, request_id,
resource_load_info_ref);
}
const blink::web_pref::WebPreferences&
WebContentsImpl::GetOrCreateWebPreferences() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::GetOrCreateWebPreferences");
// Compute WebPreferences based on the current state if it's null.
if (!web_preferences_)
OnWebPreferencesChanged();
return *web_preferences_.get();
}
void WebContentsImpl::SetWebPreferences(
const blink::web_pref::WebPreferences& prefs) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SetWebPreferences");
web_preferences_ = std::make_unique<blink::web_pref::WebPreferences>(prefs);
// Get all the RenderViewHosts (except the ones for currently back-forward
// cached pages), and make them send the current WebPreferences
// to the renderer. WebPreferences updates for back-forward cached pages will
// be sent when we restore those pages from the back-forward cache.
for (auto& rvh : primary_frame_tree_.render_view_hosts()) {
rvh.second->SendWebPreferencesToRenderer();
}
}
void WebContentsImpl::RecomputeWebPreferencesSlow() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::RecomputeWebPreferencesSlow");
// OnWebPreferencesChanged is a no-op when this is true.
if (updating_web_preferences_)
return;
// Resets |web_preferences_| so that we won't have any cached value for slow
// attributes (which won't get recomputed if we have pre-existing values for
// them).
web_preferences_.reset();
OnWebPreferencesChanged();
}
absl::optional<SkColor> WebContentsImpl::GetBaseBackgroundColor() {
return page_base_background_color_;
}
void WebContentsImpl::PrintCrossProcessSubframe(
const gfx::Rect& rect,
int document_cookie,
RenderFrameHostImpl* subframe_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::PrintCrossProcessSubframe",
"subframe", subframe_host);
auto* outer_contents = GetOuterWebContents();
if (outer_contents) {
// When an extension or app page is printed, the content should be
// composited with outer content, so the outer contents should handle the
// print request.
outer_contents->PrintCrossProcessSubframe(rect, document_cookie,
subframe_host);
return;
}
// If there is no delegate such as in tests or during deletion, do nothing.
if (!delegate_)
return;
delegate_->PrintCrossProcessSubframe(this, rect, document_cookie,
subframe_host);
}
void WebContentsImpl::CapturePaintPreviewOfCrossProcessSubframe(
const gfx::Rect& rect,
const base::UnguessableToken& guid,
RenderFrameHostImpl* render_frame_host) {
OPTIONAL_TRACE_EVENT1(
"content", "WebContentsImpl::CapturePaintPreviewOfCrossProcessSubframe",
"render_frame_host", render_frame_host);
if (!delegate_)
return;
delegate_->CapturePaintPreviewOfSubframe(this, rect, guid, render_frame_host);
}
#if BUILDFLAG(IS_ANDROID)
base::android::ScopedJavaLocalRef<jobject>
WebContentsImpl::GetJavaRenderFrameHostDelegate() {
return GetJavaWebContents();
}
#endif
void WebContentsImpl::DOMContentLoaded(RenderFrameHostImpl* render_frame_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::DOMContentLoaded",
"render_frame_host", render_frame_host);
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.DOMContentLoaded");
observers_.NotifyObservers(&WebContentsObserver::DOMContentLoaded,
render_frame_host);
}
void WebContentsImpl::OnDidFinishLoad(RenderFrameHostImpl* render_frame_host,
const GURL& url) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::OnDidFinishLoad",
"render_frame_host", render_frame_host, "url", url);
GURL validated_url(url);
render_frame_host->GetProcess()->FilterURL(false, &validated_url);
{
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.DidFinishLoad");
observers_.NotifyObservers(&WebContentsObserver::DidFinishLoad,
render_frame_host, validated_url);
}
size_t tree_size = GetFrameTreeSize(&primary_frame_tree_);
if (max_loaded_frame_count_ < tree_size)
max_loaded_frame_count_ = tree_size;
if (!render_frame_host->GetParentOrOuterDocument())
UMA_HISTOGRAM_COUNTS_1000("Navigation.MainFrame.FrameCount", tree_size);
}
bool WebContentsImpl::IsAllowedToGoToEntryAtOffset(int32_t offset) {
// TODO(https://crbug.com/1170277): This should probably be renamed to
// WebContentsDelegate::IsAllowedToGoToEntryAtOffset or
// ShouldGoToEntryAtOffset
return !delegate_ || delegate_->OnGoToEntryOffset(offset);
}
void WebContentsImpl::OnPageScaleFactorChanged(PageImpl& source) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnPageScaleFactorChanged",
"source", source);
if (source.IsPrimary()) {
observers_.NotifyObservers(&WebContentsObserver::OnPageScaleFactorChanged,
source.GetPageScaleFactor());
}
}
void WebContentsImpl::EnumerateDirectory(
RenderFrameHost* render_frame_host,
scoped_refptr<FileChooserImpl::FileSelectListenerImpl> listener,
const base::FilePath& directory_path) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::EnumerateDirectory",
"render_frame_host", render_frame_host,
"directory_path", directory_path);
// Any explicit focusing of another window while this WebContents is in
// fullscreen can be used to confuse the user, so drop fullscreen.
base::ScopedClosureRunner fullscreen_block = ForSecurityDropFullscreen();
listener->SetFullscreenBlock(std::move(fullscreen_block));
if (delegate_)
delegate_->EnumerateDirectory(this, std::move(listener), directory_path);
else
listener->FileSelectionCanceled();
}
void WebContentsImpl::RegisterProtocolHandler(RenderFrameHostImpl* source,
const std::string& protocol,
const GURL& url,
bool user_gesture) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::RegisterProtocolHandler",
"render_frame_host", source, "protocol", protocol);
// TODO(nick): Do we need to apply FilterURL to |url|?
if (!delegate_)
return;
blink::ProtocolHandlerSecurityLevel security_level =
delegate_->GetProtocolHandlerSecurityLevel(source);
// Run the protocol handler arguments normalization process defined in the
// spec.
// https://html.spec.whatwg.org/multipage/system-state.html#normalize-protocol-handler-parameters
if (!AreValidRegisterProtocolHandlerArguments(
protocol, url, source->GetLastCommittedOrigin(), security_level)) {
ReceivedBadMessage(source->GetProcess(),
bad_message::REGISTER_PROTOCOL_HANDLER_INVALID_URL);
return;
}
delegate_->RegisterProtocolHandler(source, protocol, url, user_gesture);
}
void WebContentsImpl::UnregisterProtocolHandler(RenderFrameHostImpl* source,
const std::string& protocol,
const GURL& url,
bool user_gesture) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::UnregisterProtocolHandler",
"render_frame_host", source, "protocol", protocol);
// TODO(nick): Do we need to apply FilterURL to |url|?
if (!delegate_)
return;
blink::ProtocolHandlerSecurityLevel security_level =
delegate_->GetProtocolHandlerSecurityLevel(source);
if (!AreValidRegisterProtocolHandlerArguments(
protocol, url, source->GetLastCommittedOrigin(), security_level)) {
ReceivedBadMessage(source->GetProcess(),
bad_message::REGISTER_PROTOCOL_HANDLER_INVALID_URL);
return;
}
delegate_->UnregisterProtocolHandler(source, protocol, url, user_gesture);
}
void WebContentsImpl::DomOperationResponse(RenderFrameHost* render_frame_host,
const std::string& json_string) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::DomOperationResponse",
"render_frame_host", render_frame_host, "json_string",
json_string);
// TODO(lukasza): The notification below should probably indicate which
// RenderFrameHostImpl the message is coming from. This can enable tests to
// talk to 2 frames at the same time, without being confused which frame a
// given response comes from. See also a corresponding TODO in the
// ExecuteScriptHelper in //content/public/test/browser_test_utils.cc
NotificationService::current()->Notify(
NOTIFICATION_DOM_OPERATION_RESPONSE, Source<WebContents>(this),
Details<const std::string>(&json_string));
observers_.NotifyObservers(&WebContentsObserver::DomOperationResponse,
render_frame_host, json_string);
}
void WebContentsImpl::SavableResourceLinksResponse(
RenderFrameHostImpl* source,
const std::vector<GURL>& resources_list,
blink::mojom::ReferrerPtr referrer,
const std::vector<blink::mojom::SavableSubframePtr>& subframes) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::SavableResourceLinksResponse",
"render_frame_host", source);
if (save_package_) {
save_package_->SavableResourceLinksResponse(source, resources_list,
std::move(referrer), subframes);
}
}
void WebContentsImpl::SavableResourceLinksError(RenderFrameHostImpl* source) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SavableResourceLinksError",
"render_frame_host", source);
if (save_package_) {
save_package_->SavableResourceLinksError(source);
}
}
void WebContentsImpl::OnServiceWorkerAccessed(
RenderFrameHost* render_frame_host,
const GURL& scope,
AllowServiceWorkerResult allowed) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::OnServiceWorkerAccessed",
"render_frame_host", render_frame_host, "scope", scope);
// Use a variable to select between overloads.
void (WebContentsObserver::*func)(RenderFrameHost*, const GURL&,
AllowServiceWorkerResult) =
&WebContentsObserver::OnServiceWorkerAccessed;
observers_.NotifyObservers(func, render_frame_host, scope, allowed);
}
void WebContentsImpl::OnServiceWorkerAccessed(
NavigationHandle* navigation,
const GURL& scope,
AllowServiceWorkerResult allowed) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::OnServiceWorkerAccessed",
"navigation_handle", navigation, "scope", scope);
// Use a variable to select between overloads.
void (WebContentsObserver::*func)(NavigationHandle*, const GURL&,
AllowServiceWorkerResult) =
&WebContentsObserver::OnServiceWorkerAccessed;
observers_.NotifyObservers(func, navigation, scope, allowed);
}
void WebContentsImpl::OnColorChooserFactoryReceiver(
mojo::PendingReceiver<blink::mojom::ColorChooserFactory> receiver) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::OnColorChooserFactoryReceiver");
color_chooser_factory_receivers_.Add(this, std::move(receiver));
}
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC)
void WebContentsImpl::OpenColorChooser(
mojo::PendingReceiver<blink::mojom::ColorChooser> chooser_receiver,
mojo::PendingRemote<blink::mojom::ColorChooserClient> client,
SkColor color,
std::vector<blink::mojom::ColorSuggestionPtr> suggestions) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::OpenColorChooser");
// Create `color_chooser_holder_` before calling OpenColorChooser since
// OpenColorChooser may callback with results.
color_chooser_holder_.reset();
color_chooser_holder_ = std::make_unique<ColorChooserHolder>(
std::move(chooser_receiver), std::move(client));
auto new_color_chooser =
delegate_ ? delegate_->OpenColorChooser(this, color, suggestions)
: nullptr;
if (color_chooser_holder_ && new_color_chooser) {
color_chooser_holder_->SetChooser(std::move(new_color_chooser));
} else if (new_color_chooser) {
// OpenColorChooser synchronously called back to DidEndColorChooser.
DCHECK(!color_chooser_holder_);
new_color_chooser->End();
} else if (color_chooser_holder_) {
DCHECK(!new_color_chooser);
color_chooser_holder_.reset();
}
}
#endif // BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC)
#if BUILDFLAG(ENABLE_PLUGINS)
void WebContentsImpl::OnPepperInstanceCreated(RenderFrameHostImpl* source,
int32_t pp_instance) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnPepperInstanceCreated",
"render_frame_host", source);
observers_.NotifyObservers(&WebContentsObserver::PepperInstanceCreated);
pepper_playback_observer_->PepperInstanceCreated(source, pp_instance);
}
void WebContentsImpl::OnPepperInstanceDeleted(RenderFrameHostImpl* source,
int32_t pp_instance) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnPepperInstanceDeleted",
"render_frame_host", source);
observers_.NotifyObservers(&WebContentsObserver::PepperInstanceDeleted);
pepper_playback_observer_->PepperInstanceDeleted(source, pp_instance);
}
void WebContentsImpl::OnPepperPluginHung(RenderFrameHostImpl* source,
int plugin_child_id,
const base::FilePath& path,
bool is_hung) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnPepperPluginHung",
"render_frame_host", source);
UMA_HISTOGRAM_COUNTS_1M("Pepper.PluginHung", 1);
observers_.NotifyObservers(&WebContentsObserver::PluginHungStatusChanged,
plugin_child_id, path, is_hung);
}
void WebContentsImpl::OnPepperStartsPlayback(RenderFrameHostImpl* source,
int32_t pp_instance) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnPepperStartsPlayback",
"render_frame_host", source);
pepper_playback_observer_->PepperStartsPlayback(source, pp_instance);
}
void WebContentsImpl::OnPepperStopsPlayback(RenderFrameHostImpl* source,
int32_t pp_instance) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnPepperStopsPlayback",
"render_frame_host", source);
pepper_playback_observer_->PepperStopsPlayback(source, pp_instance);
}
void WebContentsImpl::OnPepperPluginCrashed(RenderFrameHostImpl* source,
const base::FilePath& plugin_path,
base::ProcessId plugin_pid) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnPepperPluginCrashed",
"render_frame_host", source);
// TODO(nick): Eliminate the |plugin_pid| parameter, which can't be trusted,
// and is only used by WebTestControlHost.
observers_.NotifyObservers(&WebContentsObserver::PluginCrashed, plugin_path,
plugin_pid);
}
#endif // BUILDFLAG(ENABLE_PLUGINS)
void WebContentsImpl::UpdateFaviconURL(
RenderFrameHostImpl* source,
const std::vector<blink::mojom::FaviconURLPtr>& candidates) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::UpdateFaviconURL",
"render_frame_host", source);
// We get updated favicon URLs after the page stops loading. If a cross-site
// navigation occurs while a page is still loading, the initial page
// may stop loading and send us updated favicon URLs after the navigation
// for the new page has committed.
if (!source->IsInPrimaryMainFrame())
return;
observers_.NotifyObservers(&WebContentsObserver::DidUpdateFaviconURL, source,
candidates);
}
void WebContentsImpl::SetIsOverlayContent(bool is_overlay_content) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SetIsOverlayContent",
"is_overlay_content", is_overlay_content);
is_overlay_content_ = is_overlay_content;
}
void WebContentsImpl::OnFirstVisuallyNonEmptyPaint(PageImpl& page) {
OPTIONAL_TRACE_EVENT1(
"content", "WebContentsImpl::OnFirstVisuallyNonEmptyPaint", "page", page);
if (!page.IsPrimary())
return;
{
SCOPED_UMA_HISTOGRAM_TIMER(
"WebContentsObserver.DidFirstVisuallyNonEmptyPaint");
observers_.NotifyObservers(
&WebContentsObserver::DidFirstVisuallyNonEmptyPaint);
}
if (page.theme_color() != last_sent_theme_color_) {
// Theme color should have updated by now if there was one.
observers_.NotifyObservers(&WebContentsObserver::DidChangeThemeColor);
last_sent_theme_color_ = GetPrimaryPage().theme_color();
}
if (page.background_color() != last_sent_background_color_) {
// Background color should have updated by now if there was one.
observers_.NotifyObservers(&WebContentsObserver::OnBackgroundColorChanged);
last_sent_background_color_ = page.background_color();
}
}
bool WebContentsImpl::IsGuest() {
return !!browser_plugin_guest_;
}
bool WebContentsImpl::IsPortal() {
return portal();
}
WebContentsImpl* WebContentsImpl::GetPortalHostWebContents() {
return portal() ? portal()->GetPortalHostContents() : nullptr;
}
void WebContentsImpl::NotifyBeforeFormRepostWarningShow() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::NotifyBeforeFormRepostWarningShow");
observers_.NotifyObservers(&WebContentsObserver::BeforeFormRepostWarningShow);
}
void WebContentsImpl::ActivateAndShowRepostFormWarningDialog() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::ActivateAndShowRepostFormWarningDialog");
Activate();
if (delegate_)
delegate_->ShowRepostFormWarningDialog(this);
}
bool WebContentsImpl::HasAccessedInitialDocument() {
return GetPrimaryFrameTree().has_accessed_initial_main_document();
}
void WebContentsImpl::UpdateTitleForEntry(NavigationEntry* entry,
const std::u16string& title) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::UpdateTitleForEntry",
"title", title);
NavigationEntryImpl* entry_impl =
NavigationEntryImpl::FromNavigationEntry(entry);
bool title_changed = UpdateTitleForEntryImpl(entry_impl, title);
if (title_changed)
NotifyTitleUpdateForEntry(entry_impl);
}
bool WebContentsImpl::UpdateTitleForEntryImpl(NavigationEntryImpl* entry,
const std::u16string& title) {
std::u16string final_title;
base::TrimWhitespace(title, base::TRIM_ALL, &final_title);
// If a page is created via window.open and never navigated,
// there will be no navigation entry. In this situation,
// |page_title_when_no_navigation_entry_| will be used for page title.
// For a title update from a non-primary frame tree, |entry| will always be
// non-null.
if (entry) {
if (final_title == entry->GetTitle())
return false; // Nothing changed, don't bother.
entry->SetTitle(final_title);
// The title for display may differ from the title just set; grab it.
final_title = entry->GetTitleForDisplay();
} else {
DCHECK(!blink::features::IsInitialNavigationEntryEnabled());
if (page_title_when_no_navigation_entry_ == final_title)
return false; // Nothing changed, don't bother.
page_title_when_no_navigation_entry_ = final_title;
}
return true;
}
void WebContentsImpl::NotifyTitleUpdateForEntry(NavigationEntryImpl* entry) {
// |entry|, if non-null, must belong to the primary frame tree's
// NavigationController.
DCHECK(!entry || GetController().GetEntryWithUniqueIDIncludingPending(
entry->GetUniqueID()));
std::u16string final_title = entry ? entry->GetTitleForDisplay()
: page_title_when_no_navigation_entry_;
bool did_web_contents_title_change = entry == GetNavigationEntryForTitle();
if (did_web_contents_title_change)
view_->SetPageTitle(final_title);
{
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.TitleWasSet");
observers_.NotifyObservers(&WebContentsObserver::TitleWasSet, entry);
}
if (did_web_contents_title_change)
NotifyNavigationStateChanged(INVALIDATE_TYPE_TITLE);
}
NavigationEntry* WebContentsImpl::GetNavigationEntryForTitle() {
// We use the title for the last committed entry rather than a pending
// navigation entry. For example, when the user types in a URL, we want to
// keep the old page's title until the new load has committed and we get a new
// title.
NavigationEntry* entry = GetController().GetLastCommittedEntry();
// We make an exception for initial navigations. We only want to use the title
// from the visible entry if:
// 1. The pending entry has been explicitly assigned a title to display.
// 2. The user is doing a history navigation in a new tab (e.g., Ctrl+Back),
// which case there is a pending entry index other than -1.
//
// Otherwise, we want to stick with the last committed entry's title during
// new navigations, which have pending entries at index -1 with no title.
if (GetController().IsInitialNavigation() &&
((GetController().GetVisibleEntry() &&
!GetController().GetVisibleEntry()->GetTitle().empty()) ||
GetController().GetPendingEntryIndex() != -1)) {
entry = GetController().GetVisibleEntry();
}
return entry;
}
void WebContentsImpl::SendChangeLoadProgress() {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SendChangeLoadProgress",
"load_progress", GetLoadProgress());
loading_last_progress_update_ = base::TimeTicks::Now();
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.LoadProgressChanged");
observers_.NotifyObservers(&WebContentsObserver::LoadProgressChanged,
GetLoadProgress());
}
void WebContentsImpl::ResetLoadProgressState() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::ResetLoadProgressState");
GetPrimaryPage().set_load_progress(0.0);
loading_weak_factory_.InvalidateWeakPtrs();
loading_last_progress_update_ = base::TimeTicks();
}
// Notifies the RenderWidgetHost instance about the fact that the page is
// loading, or done loading.
void WebContentsImpl::LoadingStateChanged(bool should_show_loading_ui,
LoadNotificationDetails* details) {
if (IsBeingDestroyed())
return;
bool is_loading = IsLoading();
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::LoadingStateChanged",
"is_loading", is_loading);
if (!is_loading) {
load_state_ =
net::LoadStateWithParam(net::LOAD_STATE_IDLE, std::u16string());
load_state_host_.clear();
upload_size_ = 0;
upload_position_ = 0;
}
should_show_loading_ui_ = should_show_loading_ui;
if (delegate_)
delegate_->LoadingStateChanged(this, should_show_loading_ui_);
NotifyNavigationStateChanged(INVALIDATE_TYPE_LOAD);
std::string url = (details ? details->url.possibly_invalid_spec() : "NULL");
if (is_loading) {
TRACE_EVENT_NESTABLE_ASYNC_BEGIN2(
"browser,navigation", "WebContentsImpl Loading", this, "URL", url,
"Primary Main FrameTreeNode id",
GetPrimaryFrameTree().root()->frame_tree_node_id());
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.DidStartLoading");
observers_.NotifyObservers(&WebContentsObserver::DidStartLoading);
} else {
TRACE_EVENT_NESTABLE_ASYNC_END1(
"browser,navigation", "WebContentsImpl Loading", this, "URL", url);
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.DidStopLoading");
observers_.NotifyObservers(&WebContentsObserver::DidStopLoading);
}
// TODO(avi): Remove. http://crbug.com/170921
int type = is_loading ? NOTIFICATION_LOAD_START : NOTIFICATION_LOAD_STOP;
NotificationDetails det = NotificationService::NoDetails();
if (details)
det = Details<LoadNotificationDetails>(details);
NotificationService::current()->Notify(
type, Source<NavigationController>(&GetController()), det);
}
void WebContentsImpl::NotifyViewSwapped(RenderViewHost* old_view,
RenderViewHost* new_view) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::NotifyViewSwapped",
"old_view", old_view, "new_view", new_view);
DCHECK_NE(old_view, new_view);
// After sending out a swap notification, we need to send a disconnect
// notification so that clients that pick up a pointer to |this| can NULL the
// pointer. See Bug 1230284.
notify_disconnection_ = true;
observers_.NotifyObservers(&WebContentsObserver::RenderViewHostChanged,
old_view, new_view);
view_->RenderViewHostChanged(old_view, new_view);
// If this is an inner WebContents that has swapped views, we need to reattach
// it to its outer WebContents.
if (node_.outer_web_contents())
ReattachToOuterWebContentsFrame();
// Ensure that the associated embedder gets cleared after a RenderViewHost
// gets swapped, so we don't reuse the same embedder next time a
// RenderViewHost is attached to this WebContents.
RemoveBrowserPluginEmbedder();
}
void WebContentsImpl::NotifyFrameSwapped(RenderFrameHostImpl* old_frame,
RenderFrameHostImpl* new_frame) {
TRACE_EVENT2("content", "WebContentsImpl::NotifyFrameSwapped", "old_frame",
old_frame, "new_frame", new_frame);
#if BUILDFLAG(IS_ANDROID)
// Copy importance from |old_frame| if |new_frame| is a main frame.
if (old_frame && !new_frame->GetParent()) {
RenderWidgetHostImpl* old_widget = old_frame->GetRenderWidgetHost();
RenderWidgetHostImpl* new_widget = new_frame->GetRenderWidgetHost();
new_widget->SetImportance(old_widget->importance());
}
#endif
observers_.NotifyObservers(&WebContentsObserver::RenderFrameHostChanged,
old_frame, new_frame);
}
void WebContentsImpl::NotifyNavigationEntryCommitted(
const LoadCommittedDetails& load_details) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::NotifyNavigationEntryCommitted");
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.NavigationEntryCommitted");
observers_.NotifyObservers(&WebContentsObserver::NavigationEntryCommitted,
load_details);
}
void WebContentsImpl::NotifyNavigationEntryChanged(
const EntryChangedDetails& change_details) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::NotifyNavigationEntryChanged");
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.NavigationEntryChanged");
observers_.NotifyObservers(&WebContentsObserver::NavigationEntryChanged,
change_details);
}
void WebContentsImpl::NotifyNavigationListPruned(
const PrunedDetails& pruned_details) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::NotifyNavigationListPruned");
observers_.NotifyObservers(&WebContentsObserver::NavigationListPruned,
pruned_details);
}
void WebContentsImpl::NotifyNavigationEntriesDeleted() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::NotifyNavigationEntriesDeleted");
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.NavigationEntryDeleted");
observers_.NotifyObservers(&WebContentsObserver::NavigationEntriesDeleted);
}
void WebContentsImpl::OnDidBlockNavigation(
const GURL& blocked_url,
const GURL& initiator_url,
blink::mojom::NavigationBlockedReason reason) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnDidBlockNavigation",
"details", [&](perfetto::TracedValue context) {
// TODO(crbug.com/1183371): Replace this with passing
// more parameters to TRACE_EVENT directly when
// available.
auto dict = std::move(context).WriteDictionary();
dict.Add("blocked_url", blocked_url);
dict.Add("initiator_url", initiator_url);
dict.Add("reason", reason);
});
if (delegate_)
delegate_->OnDidBlockNavigation(this, blocked_url, initiator_url, reason);
}
void WebContentsImpl::RenderFrameCreated(
RenderFrameHostImpl* render_frame_host) {
TRACE_EVENT1("content", "WebContentsImpl::RenderFrameCreated",
"render_frame_host", render_frame_host);
if (render_frame_host->IsInPrimaryMainFrame()) {
NotifyPrimaryMainFrameProcessIsAlive();
}
{
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.RenderFrameCreated");
observers_.NotifyObservers(&WebContentsObserver::RenderFrameCreated,
render_frame_host);
}
render_frame_host->UpdateAccessibilityMode();
if (display_cutout_host_impl_)
display_cutout_host_impl_->RenderFrameCreated(render_frame_host);
}
void WebContentsImpl::RenderFrameDeleted(
RenderFrameHostImpl* render_frame_host) {
TRACE_EVENT1("content", "WebContentsImpl::RenderFrameDeleted",
"render_frame_host", render_frame_host);
{
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.RenderFrameDeleted");
observers_.NotifyObservers(&WebContentsObserver::RenderFrameDeleted,
render_frame_host);
}
#if BUILDFLAG(ENABLE_PLUGINS)
pepper_playback_observer_->RenderFrameDeleted(render_frame_host);
#endif
if (display_cutout_host_impl_)
display_cutout_host_impl_->RenderFrameDeleted(render_frame_host);
// Remove any fullscreen state that the frame has stored.
FullscreenStateChanged(render_frame_host, false /* is_fullscreen */,
blink::mojom::FullscreenOptionsPtr());
}
void WebContentsImpl::ShowContextMenu(
RenderFrameHost& render_frame_host,
mojo::PendingAssociatedRemote<blink::mojom::ContextMenuClient>
context_menu_client,
const ContextMenuParams& params) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::ShowContextMenu",
"render_frame_host", render_frame_host);
// If a renderer fires off a second command to show a context menu before the
// first context menu is closed, just ignore it. https://crbug.com/707534
if (showing_context_menu_)
return;
if (context_menu_client) {
context_menu_client_.reset();
context_menu_client_.Bind(std::move(context_menu_client));
}
ContextMenuParams context_menu_params(params);
// Allow WebContentsDelegates to handle the context menu operation first.
if (delegate_ &&
delegate_->HandleContextMenu(render_frame_host, context_menu_params))
return;
render_view_host_delegate_view_->ShowContextMenu(render_frame_host,
context_menu_params);
}
namespace {
// Normalizes the line endings: \r\n -> \n, lone \r -> \n.
std::u16string NormalizeLineBreaks(const std::u16string& source) {
static const base::NoDestructor<std::u16string> kReturnNewline(u"\r\n");
static const base::NoDestructor<std::u16string> kReturn(u"\r");
static const base::NoDestructor<std::u16string> kNewline(u"\n");
std::vector<base::StringPiece16> pieces;
for (const auto& rn_line : base::SplitStringPieceUsingSubstr(
source, *kReturnNewline, base::KEEP_WHITESPACE,
base::SPLIT_WANT_ALL)) {
auto r_lines = base::SplitStringPieceUsingSubstr(
rn_line, *kReturn, base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
std::move(std::begin(r_lines), std::end(r_lines),
std::back_inserter(pieces));
}
return base::JoinString(pieces, *kNewline);
}
} // namespace
void WebContentsImpl::RunJavaScriptDialog(
RenderFrameHostImpl* render_frame_host,
const std::u16string& message,
const std::u16string& default_prompt,
JavaScriptDialogType dialog_type,
bool disable_third_party_subframe_suppresion,
JavaScriptDialogCallback response_callback) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::RunJavaScriptDialog",
"render_frame_host", render_frame_host);
DCHECK(render_frame_host->GetPage().IsPrimary());
// Ensure that if showing a dialog is the first thing that a page does, that
// the contents of the previous page aren't shown behind it. This is required
// because showing a dialog freezes the renderer, so no frames will be coming
// from it. https://crbug.com/823353
auto* render_widget_host_impl = render_frame_host->GetRenderWidgetHost();
if (render_widget_host_impl)
render_widget_host_impl->ForceFirstFrameAfterNavigationTimeout();
// Running a dialog causes an exit to webpage-initiated fullscreen.
// http://crbug.com/728276
base::ScopedClosureRunner fullscreen_block = ForSecurityDropFullscreen();
auto callback =
base::BindOnce(&WebContentsImpl::OnDialogClosed, base::Unretained(this),
render_frame_host->GetProcess()->GetID(),
render_frame_host->GetRoutingID(),
std::move(response_callback), std::move(fullscreen_block));
std::vector<protocol::PageHandler*> page_handlers =
protocol::PageHandler::EnabledForWebContents(this);
if (delegate_)
dialog_manager_ = delegate_->GetJavaScriptDialogManager(this);
// While a JS message dialog is showing, defer commits in this WebContents.
javascript_dialog_dismiss_notifier_ =
std::make_unique<JavaScriptDialogDismissNotifier>();
// Suppress JavaScript dialogs when requested.
bool should_suppress = delegate_ && delegate_->ShouldSuppressDialogs(this);
bool has_non_devtools_handlers = delegate_ && dialog_manager_;
bool has_handlers = page_handlers.size() || has_non_devtools_handlers;
bool suppress_this_message = should_suppress || !has_handlers;
if (!disable_third_party_subframe_suppresion &&
GetContentClient()->browser()->SuppressDifferentOriginSubframeJSDialogs(
GetBrowserContext())) {
// We can't check for opaque origin cases, default to allowing them to
// trigger dialogs.
// TODO(carlosil): The main use case for opaque use cases are tests,
// investigate if there are uses in the wild, otherwise adapt tests that
// require dialogs so they commit an origin first, and remove this
// conditional.
if (!render_frame_host->GetLastCommittedOrigin().opaque()) {
bool is_different_origin_subframe =
render_frame_host->GetLastCommittedOrigin() !=
render_frame_host->GetOutermostMainFrame()->GetLastCommittedOrigin();
suppress_this_message |= is_different_origin_subframe;
if (is_different_origin_subframe) {
GetMainFrame()->AddMessageToConsole(
blink::mojom::ConsoleMessageLevel::kWarning,
base::StringPrintf(
"A different origin subframe tried to create a JavaScript "
"dialog. This is no longer allowed and was blocked. See "
"https://www.chromestatus.com/feature/5148698084376576 for "
"more details."));
}
}
}
if (suppress_this_message) {
std::move(callback).Run(true, false, std::u16string());
return;
}
scoped_refptr<CloseDialogCallbackWrapper> wrapper =
new CloseDialogCallbackWrapper(std::move(callback));
is_showing_javascript_dialog_ = true;
std::u16string normalized_message = NormalizeLineBreaks(message);
for (auto* handler : page_handlers) {
handler->DidRunJavaScriptDialog(
render_frame_host->GetLastCommittedURL(), normalized_message,
default_prompt, dialog_type, has_non_devtools_handlers,
base::BindOnce(&CloseDialogCallbackWrapper::Run, wrapper, false));
}
if (dialog_manager_) {
dialog_manager_->RunJavaScriptDialog(
this, render_frame_host, dialog_type, normalized_message,
default_prompt,
base::BindOnce(&CloseDialogCallbackWrapper::Run, wrapper, false),
&suppress_this_message);
}
if (suppress_this_message) {
// If we are suppressing messages, just reply as if the user immediately
// pressed "Cancel", passing true to |dialog_was_suppressed|.
wrapper->Run(true, false, std::u16string());
}
}
void WebContentsImpl::NotifyOnJavaScriptDialogDismiss(
base::OnceClosure callback) {
DCHECK(javascript_dialog_dismiss_notifier_);
javascript_dialog_dismiss_notifier_->NotifyOnDismiss(std::move(callback));
}
void WebContentsImpl::RunBeforeUnloadConfirm(
RenderFrameHostImpl* render_frame_host,
bool is_reload,
JavaScriptDialogCallback response_callback) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::RunBeforeUnloadConfirm",
"render_frame_host", render_frame_host, "is_reload",
is_reload);
DCHECK(render_frame_host->GetPage().IsPrimary());
// Ensure that if showing a dialog is the first thing that a page does, that
// the contents of the previous page aren't shown behind it. This is required
// because showing a dialog freezes the renderer, so no frames will be coming
// from it. https://crbug.com/823353
auto* render_widget_host_impl = render_frame_host->GetRenderWidgetHost();
if (render_widget_host_impl)
render_widget_host_impl->ForceFirstFrameAfterNavigationTimeout();
// Running a dialog causes an exit to webpage-initiated fullscreen.
// http://crbug.com/728276
base::ScopedClosureRunner fullscreen_block = ForSecurityDropFullscreen();
auto callback =
base::BindOnce(&WebContentsImpl::OnDialogClosed, base::Unretained(this),
render_frame_host->GetProcess()->GetID(),
render_frame_host->GetRoutingID(),
std::move(response_callback), std::move(fullscreen_block));
std::vector<protocol::PageHandler*> page_handlers =
protocol::PageHandler::EnabledForWebContents(this);
if (delegate_)
dialog_manager_ = delegate_->GetJavaScriptDialogManager(this);
// While a JS beforeunload dialog is showing, defer commits in this
// WebContents.
javascript_dialog_dismiss_notifier_ =
std::make_unique<JavaScriptDialogDismissNotifier>();
bool should_suppress = delegate_ && delegate_->ShouldSuppressDialogs(this);
bool has_non_devtools_handlers = delegate_ && dialog_manager_;
bool has_handlers = page_handlers.size() || has_non_devtools_handlers;
if (should_suppress || !has_handlers) {
std::move(callback).Run(false, true, std::u16string());
return;
}
is_showing_before_unload_dialog_ = true;
scoped_refptr<CloseDialogCallbackWrapper> wrapper =
new CloseDialogCallbackWrapper(std::move(callback));
GURL frame_url = render_frame_host->GetLastCommittedURL();
for (auto* handler : page_handlers) {
handler->DidRunBeforeUnloadConfirm(
frame_url, has_non_devtools_handlers,
base::BindOnce(&CloseDialogCallbackWrapper::Run, wrapper, false));
}
if (dialog_manager_) {
dialog_manager_->RunBeforeUnloadDialog(
this, render_frame_host, is_reload,
base::BindOnce(&CloseDialogCallbackWrapper::Run, wrapper, false));
}
}
void WebContentsImpl::RunFileChooser(
RenderFrameHost* render_frame_host,
scoped_refptr<FileChooserImpl::FileSelectListenerImpl> listener,
const blink::mojom::FileChooserParams& params) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::RunFileChooser",
"render_frame_host", render_frame_host);
// Any explicit focusing of another window while this WebContents is in
// fullscreen can be used to confuse the user, so drop fullscreen.
base::ScopedClosureRunner fullscreen_block = ForSecurityDropFullscreen();
listener->SetFullscreenBlock(std::move(fullscreen_block));
if (delegate_)
delegate_->RunFileChooser(render_frame_host, std::move(listener), params);
else
listener->FileSelectionCanceled();
}
double WebContentsImpl::GetPendingPageZoomLevel() {
#if BUILDFLAG(IS_ANDROID)
// On Android, use the default page zoom level when the AccessibilityPageZoom
// feature is not enabled.
if (!base::FeatureList::IsEnabled(features::kAccessibilityPageZoom)) {
return 0.0;
}
#endif
NavigationEntry* pending_entry = GetController().GetPendingEntry();
if (!pending_entry)
return HostZoomMap::GetZoomLevel(this);
GURL url = pending_entry->GetURL();
return HostZoomMap::GetForWebContents(this)->GetZoomLevelForHostAndScheme(
url.scheme(), net::GetHostOrSpecFromURL(url));
}
bool WebContentsImpl::IsPictureInPictureAllowedForFullscreenVideo() const {
return media_web_contents_observer_
->IsPictureInPictureAllowedForFullscreenVideo();
}
bool WebContentsImpl::IsFocusedElementEditable() {
RenderFrameHostImpl* frame = GetFocusedFrame();
return frame && frame->has_focused_editable_element();
}
bool WebContentsImpl::IsShowingContextMenu() {
return showing_context_menu_;
}
void WebContentsImpl::SetShowingContextMenu(bool showing) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::SetShowingContextMenu",
"showing", showing);
DCHECK_NE(showing_context_menu_, showing);
showing_context_menu_ = showing;
if (auto* view = GetRenderWidgetHostView()) {
// Notify the main frame's RWHV to run the platform-specific code, if any.
static_cast<RenderWidgetHostViewBase*>(view)->SetShowingContextMenu(
showing);
}
}
void WebContentsImpl::ClearFocusedElement() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::ClearFocusedElement");
if (auto* frame = GetFocusedFrame())
frame->ClearFocusedElement();
}
bool WebContentsImpl::IsNeverComposited() {
if (!delegate_)
return false;
return delegate_->IsNeverComposited(this);
}
RenderViewHostDelegateView* WebContentsImpl::GetDelegateView() {
return render_view_host_delegate_view_;
}
const blink::RendererPreferences& WebContentsImpl::GetRendererPrefs() const {
return renderer_preferences_;
}
RenderFrameHostImpl* WebContentsImpl::GetOuterWebContentsFrame() {
if (GetOuterDelegateFrameTreeNodeId() ==
FrameTreeNode::kFrameTreeNodeInvalidId) {
return nullptr;
}
FrameTreeNode* outer_node =
FrameTreeNode::GloballyFindByID(GetOuterDelegateFrameTreeNodeId());
// The outer node should be in the outer WebContents.
DCHECK_EQ(outer_node->frame_tree(),
&GetOuterWebContents()->GetPrimaryFrameTree());
return outer_node->parent();
}
WebContentsImpl* WebContentsImpl::GetOuterWebContents() {
return node_.outer_web_contents();
}
std::vector<WebContents*> WebContentsImpl::GetInnerWebContents() {
std::vector<WebContents*> all_inner_contents;
const auto& inner_contents = node_.GetInnerWebContents();
all_inner_contents.insert(all_inner_contents.end(), inner_contents.begin(),
inner_contents.end());
return all_inner_contents;
}
WebContentsImpl* WebContentsImpl::GetResponsibleWebContents() {
// Iteratively ask delegates which other contents is responsible until a fixed
// point is found.
WebContentsImpl* contents = this;
while (WebContentsDelegate* delegate = contents->GetDelegate()) {
auto* responsible_contents = static_cast<WebContentsImpl*>(
delegate->GetResponsibleWebContents(contents));
if (responsible_contents == contents)
break;
contents = responsible_contents;
}
return contents;
}
WebContentsImpl* WebContentsImpl::GetFocusedWebContents() {
return WebContentsImpl::FromFrameTreeNode(GetFocusedFrameTree()->root());
}
FrameTree* WebContentsImpl::GetFocusedFrameTree() {
return GetOutermostWebContents()->node_.focused_frame_tree();
}
void WebContentsImpl::SetFocusToLocationBar() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SetFocusToLocationBar");
if (delegate_)
delegate_->SetFocusToLocationBar();
}
bool WebContentsImpl::ContainsOrIsFocusedWebContents() {
for (WebContentsImpl* focused_contents = GetFocusedWebContents();
focused_contents;
focused_contents = focused_contents->GetOuterWebContents()) {
if (focused_contents == this)
return true;
}
return false;
}
void WebContentsImpl::RemoveBrowserPluginEmbedder() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::RemoveBrowserPluginEmbedder");
browser_plugin_embedder_.reset();
}
WebContentsImpl* WebContentsImpl::GetOutermostWebContents() {
WebContentsImpl* root = this;
while (root->GetOuterWebContents())
root = root->GetOuterWebContents();
return root;
}
void WebContentsImpl::InnerWebContentsCreated(WebContents* inner_web_contents) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::InnerWebContentsCreated");
observers_.NotifyObservers(&WebContentsObserver::InnerWebContentsCreated,
inner_web_contents);
}
void WebContentsImpl::InnerWebContentsAttached(
WebContents* inner_web_contents) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::InnerWebContentsDetached");
if (inner_web_contents->IsCurrentlyAudible())
OnAudioStateChanged();
}
void WebContentsImpl::InnerWebContentsDetached(
WebContents* inner_web_contents) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::InnerWebContentsCreated");
if (!IsBeingDestroyed())
OnAudioStateChanged();
}
void WebContentsImpl::RenderViewReady(RenderViewHost* rvh) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::RenderViewReady",
"render_view_host", rvh);
if (rvh != GetRenderViewHost()) {
// Don't notify the world, since this came from a renderer in the
// background.
return;
}
RenderWidgetHostViewBase* rwhv =
static_cast<RenderWidgetHostViewBase*>(GetRenderWidgetHostView());
if (rwhv)
rwhv->SetMainFrameAXTreeID(GetMainFrame()->GetAXTreeID());
notify_disconnection_ = true;
{
SCOPED_UMA_HISTOGRAM_TIMER("WebContentsObserver.RenderViewReady");
observers_.NotifyObservers(&WebContentsObserver::RenderViewReady);
}
view_->RenderViewReady();
}
void WebContentsImpl::RenderViewTerminated(RenderViewHost* rvh,
base::TerminationStatus status,
int error_code) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::RenderViewTerminated",
"render_view_host", rvh, "status",
static_cast<int>(status));
// It is possible to get here while the WebContentsImpl is being destroyed,
// in particular when the destruction of the main frame's RenderFrameHost and
// RenderViewHost triggers cleanup of the main frame's process, which in turn
// dispatches RenderProcessExited observers, one of which calls in here. In
// this state, we cannot check GetRenderViewHost() below, since
// current_frame_host() for the root FrameTreeNode has already been cleared.
// Since the WebContents is going away, none of the work here is needed, so
// just return early.
if (IsBeingDestroyed())
return;
if (rvh != GetRenderViewHost()) {
// The pending page's RenderViewHost is gone.
return;
}
auto* rvh_impl = static_cast<RenderViewHostImpl*>(rvh);
DCHECK(rvh_impl->GetMainRenderFrameHost()->IsInPrimaryMainFrame())
<< "GetRenderViewHost() must belong to the primary frame tree";
// Ensure fullscreen mode is exited in the |delegate_| since a crashed
// renderer may not have made a clean exit.
if (IsFullscreen())
ExitFullscreenMode(false);
// Ensure any video or document in Picture-in-Picture is exited in the
// |delegate_| since a crashed renderer may not have made a clean exit.
if (HasPictureInPictureVideo() || HasPictureInPictureDocument())
ExitPictureInPicture();
// Cancel any visible dialogs so they are not left dangling over the sad tab.
CancelActiveAndPendingDialogs();
audio_stream_monitor_.RenderProcessGone(rvh_impl->GetProcess()->GetID());
// Reset the loading progress. TODO(avi): What does it mean to have a
// "renderer crash" when there is more than one renderer process serving a
// webpage? Once this function is called at a more granular frame level, we
// probably will need to more granularly reset the state here.
ResetLoadProgressState();
SetPrimaryMainFrameProcessStatus(status, error_code);
TRACE_EVENT0(
"content",
"Dispatching WebContentsObserver::PrimaryMainFrameRenderProcessGone");
// Some observers might destroy WebContents in
// PrimaryMainFrameRenderProcessGone.
base::WeakPtr<WebContentsImpl> weak_ptr = weak_factory_.GetWeakPtr();
for (auto& observer : observers_.observer_list()) {
observer.PrimaryMainFrameRenderProcessGone(status);
if (!weak_ptr)
return;
}
// |this| might have been deleted. Do not add code here.
}
void WebContentsImpl::RenderViewDeleted(RenderViewHost* rvh) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::RenderViewDeleted",
"render_view_host", rvh);
observers_.NotifyObservers(&WebContentsObserver::RenderViewDeleted, rvh);
}
void WebContentsImpl::ClearTargetURL() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::ClearTargetURL");
frame_that_set_last_target_url_ = nullptr;
if (delegate_)
delegate_->UpdateTargetURL(this, GURL());
}
void WebContentsImpl::Close(RenderViewHost* rvh) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::Close", "render_view_host",
rvh);
#if BUILDFLAG(IS_MAC)
// The UI may be in an event-tracking loop, such as between the
// mouse-down and mouse-up in text selection or a button click.
// Defer the close until after tracking is complete, so that we
// don't free objects out from under the UI.
// TODO(shess): This could get more fine-grained. For instance,
// closing a tab in another window while selecting text in the
// current window's Omnibox should be just fine.
if (view_->CloseTabAfterEventTrackingIfNeeded())
return;
#endif
// Ignore this if it comes from a RenderViewHost that we aren't showing.
if (delegate_ && rvh == GetRenderViewHost())
delegate_->CloseContents(this);
}
void WebContentsImpl::SetWindowRect(const gfx::Rect& new_bounds) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SetWindowRect");
if (!delegate_)
return;
// Members of |new_bounds| may be 0 to indicate uninitialized values for newly
// opened windows, even if the |GetContainerBounds()| inner rect is correct.
// TODO(crbug.com/897300): Plumb values as specified; fallback on outer rect.
auto bounds = new_bounds;
if (bounds.IsEmpty())
bounds.set_size(GetContainerBounds().size());
// Only requests from the main frame, not subframes, should reach this code.
int64_t display_id = AdjustRequestedWindowBounds(&bounds, GetMainFrame());
// Drop fullscreen when placing a WebContents to prohibit deceptive behavior.
// Only drop fullscreen on the specific destination display, which is known.
// This supports sites using cross-screen window placement capabilities to
// retain fullscreen and place a window on another screen.
ForSecurityDropFullscreen(display_id).RunAndReset();
delegate_->SetContentsBounds(this, bounds);
}
void WebContentsImpl::UpdateWindowPreferredSize(const gfx::Size& pref_size) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::UpdatePreferredSize");
const gfx::Size old_size = GetPreferredSize();
preferred_size_ = pref_size;
OnPreferredSizeChanged(old_size);
}
std::vector<RenderFrameHostImpl*>
WebContentsImpl::GetActiveTopLevelDocumentsInBrowsingContextGroup(
RenderFrameHostImpl* render_frame_host) {
std::vector<RenderFrameHostImpl*> out;
for (WebContentsImpl* web_contents : GetAllWebContents()) {
RenderFrameHostImpl* other_render_frame_host = web_contents->GetMainFrame();
// Filters out inactive documents.
if (other_render_frame_host->lifecycle_state() !=
RenderFrameHostImpl::LifecycleStateImpl::kActive) {
continue;
}
// Filters out documents from a different browsing context group.
if (!render_frame_host->GetSiteInstance()->IsRelatedSiteInstance(
other_render_frame_host->GetSiteInstance())) {
continue;
}
out.push_back(other_render_frame_host);
}
return out;
}
PrerenderHostRegistry* WebContentsImpl::GetPrerenderHostRegistry() {
DCHECK(blink::features::IsPrerender2Enabled());
DCHECK(prerender_host_registry_);
return prerender_host_registry_.get();
}
void WebContentsImpl::DidStartLoading(FrameTreeNode* frame_tree_node,
bool should_show_loading_ui) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::DidStartLoading",
"frame_tree_node", frame_tree_node);
LoadingStateChanged(
frame_tree_node->GetFrameType() == FrameType::kPrimaryMainFrame &&
should_show_loading_ui,
nullptr);
// Reset the focus state from DidStartNavigation to false if a new load starts
// afterward, in case loading logic triggers a FocusLocationBarByDefault call.
should_focus_location_bar_by_default_ = false;
// Notify accessibility that the user is navigating away from the
// current document.
// TODO(domfarolino, dmazzoni): Do this using WebContentsObserver. See
// https://crbug.com/981271.
BrowserAccessibilityManager* manager =
frame_tree_node->current_frame_host()->browser_accessibility_manager();
if (manager)
manager->UserIsNavigatingAway();
}
void WebContentsImpl::DidStopLoading() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::DidStopLoading");
std::unique_ptr<LoadNotificationDetails> details;
// Use the last committed entry rather than the active one, in case a
// pending entry has been created.
NavigationEntry* entry = GetController().GetLastCommittedEntry();
// An entry may not exist for a stop when loading an initial blank page or
// if an iframe injected by script into a blank page finishes loading.
if (entry) {
details = std::make_unique<LoadNotificationDetails>(
entry->GetVirtualURL(), &GetController(),
GetController().GetCurrentEntryIndex());
}
LoadingStateChanged(true /* should_show_loading_ui */, details.get());
}
void WebContentsImpl::DidChangeLoadProgress() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::DidChangeLoadProgress");
if (IsBeingDestroyed())
return;
double load_progress = GetLoadProgress();
// The delegate is notified immediately for the first and last updates. Also,
// since the message loop may be pretty busy when a page is loaded, it might
// not execute a posted task in a timely manner so the progress report is sent
// immediately if enough time has passed.
base::TimeDelta min_delay = minimum_delay_between_loading_updates_ms_;
bool delay_elapsed =
loading_last_progress_update_.is_null() ||
base::TimeTicks::Now() - loading_last_progress_update_ > min_delay;
if (load_progress == 0.0 || load_progress == 1.0 || delay_elapsed) {
// If there is a pending task to send progress, it is now obsolete.
loading_weak_factory_.InvalidateWeakPtrs();
// Notify the load progress change.
SendChangeLoadProgress();
// Clean-up the states if needed.
if (load_progress == 1.0)
ResetLoadProgressState();
return;
}
if (loading_weak_factory_.HasWeakPtrs())
return;
if (min_delay == base::Milliseconds(0)) {
SendChangeLoadProgress();
} else {
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&WebContentsImpl::SendChangeLoadProgress,
loading_weak_factory_.GetWeakPtr()),
min_delay);
}
}
bool WebContentsImpl::IsHidden() {
return GetPageVisibilityState() == PageVisibilityState::kHidden;
}
std::vector<std::unique_ptr<NavigationThrottle>>
WebContentsImpl::CreateThrottlesForNavigation(
NavigationHandle* navigation_handle) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::CreateThrottlesForNavigation",
"navigation", navigation_handle);
auto throttles = GetContentClient()->browser()->CreateThrottlesForNavigation(
navigation_handle);
return throttles;
}
std::vector<std::unique_ptr<CommitDeferringCondition>>
WebContentsImpl::CreateDeferringConditionsForNavigationCommit(
NavigationHandle& navigation_handle,
CommitDeferringCondition::NavigationType type) {
OPTIONAL_TRACE_EVENT2(
"content", "WebContentsImpl::CreateDeferringConditionsForNavigation",
"navigation", navigation_handle, "NavigationType", type);
std::vector<std::unique_ptr<CommitDeferringCondition>> conditions =
GetContentClient()
->browser()
->CreateCommitDeferringConditionsForNavigation(&navigation_handle,
type);
if (auto condition = JavaScriptDialogCommitDeferringCondition::MaybeCreate(
static_cast<NavigationRequest&>(navigation_handle)))
conditions.push_back(std::move(condition));
return conditions;
}
std::unique_ptr<NavigationUIData> WebContentsImpl::GetNavigationUIData(
NavigationHandle* navigation_handle) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::GetNavigationUIData");
return GetContentClient()->browser()->GetNavigationUIData(navigation_handle);
}
void WebContentsImpl::RegisterExistingOriginToPreventOptInIsolation(
const url::Origin& origin,
NavigationRequest* navigation_request_to_exclude) {
OPTIONAL_TRACE_EVENT2(
"content",
"WebContentsImpl::RegisterExistingOriginToPreventOptInIsolation",
"origin", origin, "navigation_request_to_exclude",
navigation_request_to_exclude);
// Note: This function can be made static if we ever need call it without
// a WebContentsImpl instance, in which case we can use a wrapper to
// implement the override from NavigatorDelegate.
for (WebContentsImpl* web_contents : GetAllWebContents()) {
// We only need to search entries in the same BrowserContext as us.
if (web_contents->GetBrowserContext() != GetBrowserContext())
continue;
// Walk the frame trees to notify each one's NavigationController about the
// opting-in origin, and also pick up any frames without
// FrameNavigationEntries.
// * Some frames won't have FrameNavigationEntries (Issues 524208, 608402).
// * Some pending navigations won't have NavigationEntries.
web_contents->ForEachFrameTree(base::BindRepeating(
[](const url::Origin& origin,
NavigationRequest* navigation_request_to_exclude,
FrameTree* frame_tree) {
frame_tree->RegisterExistingOriginToPreventOptInIsolation(
origin, navigation_request_to_exclude);
},
origin, navigation_request_to_exclude));
}
}
void WebContentsImpl::DidChangeName(RenderFrameHostImpl* render_frame_host,
const std::string& name) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::DidChangeName",
"render_frame_host", render_frame_host, "name", name);
observers_.NotifyObservers(&WebContentsObserver::FrameNameChanged,
render_frame_host, name);
}
void WebContentsImpl::DidReceiveUserActivation(
RenderFrameHostImpl* render_frame_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::DidReceiveUserActivation",
"render_frame_host", render_frame_host);
observers_.NotifyObservers(&WebContentsObserver::FrameReceivedUserActivation,
render_frame_host);
}
void WebContentsImpl::BindDisplayCutoutHost(
RenderFrameHostImpl* render_frame_host,
mojo::PendingAssociatedReceiver<blink::mojom::DisplayCutoutHost> receiver) {
if (display_cutout_host_impl_) {
display_cutout_host_impl_->BindReceiver(std::move(receiver),
render_frame_host);
}
}
void WebContentsImpl::DidChangeDisplayState(
RenderFrameHostImpl* render_frame_host,
bool is_display_none) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::DidChangeDisplayState",
"render_frame_host", render_frame_host,
"is_display_none", is_display_none);
observers_.NotifyObservers(&WebContentsObserver::FrameDisplayStateChanged,
render_frame_host, is_display_none);
}
void WebContentsImpl::FrameSizeChanged(RenderFrameHostImpl* render_frame_host,
const gfx::Size& frame_size) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::FrameSizeChanged",
"render_frame_host", render_frame_host);
observers_.NotifyObservers(&WebContentsObserver::FrameSizeChanged,
render_frame_host, frame_size);
}
void WebContentsImpl::DocumentOnLoadCompleted(
RenderFrameHostImpl* render_frame_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::DocumentOnLoadCompleted",
"render_frame_host", render_frame_host);
DCHECK(render_frame_host->IsInPrimaryMainFrame());
ShowInsecureLocalhostWarningIfNeeded(render_frame_host->GetPage());
observers_.NotifyObservers(
&WebContentsObserver::DocumentOnLoadCompletedInPrimaryMainFrame);
// TODO(avi): Remove. http://crbug.com/170921
NotificationService::current()->Notify(NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
Source<WebContents>(this),
NotificationService::NoDetails());
}
void WebContentsImpl::UpdateTitle(RenderFrameHostImpl* render_frame_host,
const std::u16string& title,
base::i18n::TextDirection title_direction) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::UpdateTitle",
"render_frame_host", render_frame_host, "title", title);
// Try to find the navigation entry, which might not be the current one.
// For example, it might be from a pending deletion RFH, or it might be from a
// non-primary frame tree.
NavigationEntryImpl* entry =
render_frame_host->frame_tree()->controller().GetEntryWithUniqueID(
render_frame_host->nav_entry_id());
if (blink::features::IsInitialNavigationEntryEnabled()) {
if (!entry) {
// When InitialNavigationEntry is enabled, we can handle title updates
// with no matching NavigationEntry, but only if the update is for the
// initial NavigationEntry. In that case the initial empty document RFH
// wouldn't have a `nav_entry_id` set because it hasn't committed any
// navigation. Note that if the title update came from the initial empty
// document but the WebContents is doing a session restore, we will
// ignore the title update (because GetLastCommittedEntry() would return
// the non-initial restored entry), which avoids accidental overwriting of
// the restored entry's title.
if (render_frame_host->GetParent() || !render_frame_host->frame_tree()
->controller()
.GetLastCommittedEntry()
->IsInitialEntry()) {
return;
}
entry =
render_frame_host->frame_tree()->controller().GetLastCommittedEntry();
}
} else {
// Otherwise, we can handle title updates when we don't have an entry in
// UpdateTitleForEntry, but only if the update is from the current RFH.
if (!entry && render_frame_host != GetMainFrame())
return;
}
// TODO(evan): make use of title_direction.
// http://code.google.com/p/chromium/issues/detail?id=27094
bool title_changed = UpdateTitleForEntryImpl(entry, title);
if (title_changed && render_frame_host == GetMainFrame()) {
NotifyTitleUpdateForEntry(entry);
}
}
void WebContentsImpl::UpdateTargetURL(RenderFrameHostImpl* render_frame_host,
const GURL& url) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::UpdateTargetURL",
"render_frame_host", render_frame_host, "url", url);
// In case of racey updates from multiple RenderViewHosts, the last URL should
// be shown - see also some discussion in https://crbug.com/807776.
if (!url.is_valid() && render_frame_host != frame_that_set_last_target_url_)
return;
frame_that_set_last_target_url_ =
url.is_valid() ? render_frame_host : nullptr;
if (delegate_)
delegate_->UpdateTargetURL(this, url);
}
bool WebContentsImpl::ShouldRouteMessageEvent(
RenderFrameHostImpl* target_rfh) const {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::ShouldRouteMessageEvent",
"render_frame_host", target_rfh);
// Allow the message if this WebContents is dedicated to a browser plugin
// guest.
// Note: This check means that an embedder could theoretically receive a
// postMessage from anyone (not just its own guests). However, this is
// probably not a risk for apps since other pages won't have references
// to App windows.
return GetBrowserPluginGuest() || GetBrowserPluginEmbedder();
}
void WebContentsImpl::EnsureOpenerProxiesExist(
RenderFrameHostImpl* source_rfh) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::EnsureOpenerProxiesExist",
"render_frame_host", source_rfh);
WebContentsImpl* source_web_contents = static_cast<WebContentsImpl*>(
WebContents::FromRenderFrameHost(source_rfh));
if (source_web_contents) {
// If this message is going to outer WebContents from inner WebContents,
// then we should not create a RenderView. AttachToOuterWebContentsFrame()
// already created a RenderFrameProxyHost for that purpose.
if (GetBrowserPluginEmbedder() &&
source_web_contents->browser_plugin_guest_) {
return;
}
if (this != source_web_contents && GetBrowserPluginGuest()) {
// We create a RenderFrameProxyHost for the embedder in the guest's render
// process but we intentionally do not expose the embedder's opener chain
// to it.
source_web_contents->GetRenderManager()->CreateRenderFrameProxy(
GetSiteInstance(),
source_web_contents->GetMainFrame()->browsing_context_state());
} else {
source_rfh->frame_tree_node()->render_manager()->CreateOpenerProxies(
GetSiteInstance(), nullptr, source_rfh->browsing_context_state());
}
}
}
void WebContentsImpl::SetAsFocusedWebContentsIfNecessary() {
SetFocusedFrameTree(&GetPrimaryFrameTree());
}
void WebContentsImpl::SetFocusedFrameTree(FrameTree* frame_tree_to_focus) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SetFocusedFrameTree");
DCHECK(!GetOuterWebContents() || !IsPortal());
DCHECK(frame_tree_to_focus);
// Only change focus if we are not currently focused.
FrameTree* old_focused_frame_tree = GetFocusedFrameTree();
if (old_focused_frame_tree == frame_tree_to_focus)
return;
GetOutermostWebContents()->node_.SetFocusedFrameTree(frame_tree_to_focus);
// Send a page level blur to the `old_focused_frame_tree` so that it displays
// inactive UI and focus `frame_tree_to_focus` to activate it.
if (old_focused_frame_tree) {
old_focused_frame_tree->root()
->current_frame_host()
->GetRenderWidgetHost()
->SetPageFocus(false);
}
// Make sure the outer frame trees knows our frame is focused. Otherwise, the
// outer renderer could have the element before or after the frame element
// focused which would return early without actually advancing focus.
frame_tree_to_focus->FocusOuterFrameTrees();
frame_tree_to_focus->root()
->current_frame_host()
->GetRenderWidgetHost()
->SetPageFocus(true);
}
void WebContentsImpl::SetFocusedFrame(FrameTreeNode* node,
SiteInstanceGroup* source) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::SetFocusedFrame",
"frame_tree_node", node, "source_site_instance_group",
source);
node->frame_tree()->SetFocusedFrame(node, source);
auto* inner_contents = node_.GetInnerWebContentsInFrame(node);
// We currently do not need to descend into inner frame trees that
// are not an inner WebContents for focus. If `inner_contents` is null,
// then the only supported inner frame tree type would be fenced frames.
// An embedding frame focusing a fenced frame is not allowed since that would
// be an information leak. If a renderer attempts to do that, that should be
// blocked by `RenderFrameProxyHost::DidFocusFrame()`.
DCHECK(inner_contents ||
node->current_frame_host()->inner_tree_main_frame_tree_node_id() ==
FrameTreeNode::kFrameTreeNodeInvalidId);
if (inner_contents) {
// An inner WebContents is not created from Fenced Frames so we
// shouldn't end up in this branch.
DCHECK_NE(FrameTree::Type::kFencedFrame, node->frame_tree()->type());
// |this| is an outer WebContents and |node| represents an inner
// WebContents. Transfer the focus to the inner contents if |this| is
// focused.
DCHECK(!inner_contents->IsPortal());
if (GetFocusedWebContents() == this)
inner_contents->SetAsFocusedWebContentsIfNecessary();
} else if (node_.OuterContentsFrameTreeNode() &&
node_.OuterContentsFrameTreeNode()
->current_frame_host()
->GetSiteInstance()
->group() == source) {
// A GuestView embedding a fenced frame will have an
// OuterContentsFrameTreeNode. However, it will not have the same site
// instance because a FencedFrame creates a new BrowsingInstance.
DCHECK_NE(FrameTree::Type::kFencedFrame, node->frame_tree()->type());
// |this| is an inner WebContents, |node| is its main FrameTreeNode and
// the outer WebContents FrameTreeNode is at |source|'s SiteInstance.
// Transfer the focus to the inner WebContents if the outer WebContents is
// focused. This branch is used when an inner WebContents is focused through
// its RenderFrameProxyHost (via FrameFocused mojo call, used to
// implement the window.focus() API).
if (GetFocusedWebContents() == GetOuterWebContents())
SetFocusedFrameTree(node->frame_tree());
} else if (!GetOuterWebContents() || GetFocusedWebContents() == this) {
// This is an outermost WebContents or we are currently focused so allow
// the requested node's frame tree to be focused. The
// (GetFocusedWebContents() == this) is needed when there are multiple
// frame trees within an inner WebContents (ie. a GuestView with fenced
// frames).
SetFocusedFrameTree(node->frame_tree());
}
}
void WebContentsImpl::DidCallFocus() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::DidCallFocus");
// Any explicit focusing of another window while this WebContents is in
// fullscreen can be used to confuse the user, so drop fullscreen.
base::ScopedClosureRunner fullscreen_block = ForSecurityDropFullscreen();
// The other contents is independent of this contents, so release the
// fullscreen block.
fullscreen_block.RunAndReset();
}
RenderFrameHostImpl*
WebContentsImpl::GetFocusedFrameIncludingInnerWebContents() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::GetFocusedFrameIncludingInnerWebContents");
WebContentsImpl* contents = this;
FrameTreeNode* focused_node = contents->primary_frame_tree_.GetFocusedFrame();
// If there is no focused frame in the outer WebContents, we need to return
// null.
if (!focused_node)
return nullptr;
// If the focused frame is embedding an inner WebContents, we must descend
// into that contents. If the current WebContents does not have a focused
// frame, return the main frame of this contents instead of the focused empty
// frame embedding this contents.
while (true) {
contents = contents->node_.GetInnerWebContentsInFrame(focused_node);
if (!contents)
return focused_node->current_frame_host();
focused_node = contents->primary_frame_tree_.GetFocusedFrame();
if (!focused_node)
return contents->GetMainFrame();
}
}
void WebContentsImpl::OnAdvanceFocus(RenderFrameHostImpl* source_rfh) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnAdvanceFocus",
"render_frame_host", source_rfh);
// When a RenderFrame needs to advance focus to a RenderFrameProxy (by hitting
// TAB), the RenderFrameProxy sends an IPC to RenderFrameProxyHost. When this
// RenderFrameProxyHost represents an inner WebContents, the outer WebContents
// needs to focus the inner WebContents.
if (GetOuterWebContents() &&
GetOuterWebContents() == WebContents::FromRenderFrameHost(source_rfh) &&
GetFocusedWebContents() == GetOuterWebContents()) {
SetAsFocusedWebContentsIfNecessary();
}
}
void WebContentsImpl::OnFocusedElementChangedInFrame(
RenderFrameHostImpl* frame,
const gfx::Rect& bounds_in_root_view,
blink::mojom::FocusType focus_type) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::OnFocusedElementChangedInFrame",
"render_frame_host", frame);
RenderWidgetHostViewBase* root_view =
static_cast<RenderWidgetHostViewBase*>(GetRenderWidgetHostView());
if (!root_view || !frame->GetView())
return;
// Convert to screen coordinates from window coordinates by adding the
// window's origin.
gfx::Point origin = bounds_in_root_view.origin();
origin += root_view->GetViewBounds().OffsetFromOrigin();
gfx::Rect bounds_in_screen(origin, bounds_in_root_view.size());
root_view->FocusedNodeChanged(frame->has_focused_editable_element(),
bounds_in_screen);
FocusedNodeDetails details = {frame->has_focused_editable_element(),
bounds_in_screen, focus_type};
BrowserAccessibilityStateImpl::GetInstance()->OnFocusChangedInPage(details);
observers_.NotifyObservers(&WebContentsObserver::OnFocusChangedInPage,
&details);
}
bool WebContentsImpl::DidAddMessageToConsole(
RenderFrameHostImpl* source_frame,
blink::mojom::ConsoleMessageLevel log_level,
const std::u16string& message,
int32_t line_no,
const std::u16string& source_id,
const absl::optional<std::u16string>& untrusted_stack_trace) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::DidAddMessageToConsole",
"message", message);
observers_.NotifyObservers(&WebContentsObserver::OnDidAddMessageToConsole,
source_frame, log_level, message, line_no,
source_id, untrusted_stack_trace);
if (!delegate_)
return false;
return delegate_->DidAddMessageToConsole(this, log_level, message, line_no,
source_id);
}
void WebContentsImpl::DidReceiveInputEvent(
RenderWidgetHostImpl* render_widget_host,
const blink::WebInputEvent& event) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::DidReceiveInputEvent",
"render_widget_host", render_widget_host);
if (!IsUserInteractionInputType(event.GetType()))
return;
// Ignore unless the widget is currently in the frame tree.
if (!HasMatchingWidgetHost(&primary_frame_tree_, render_widget_host))
return;
if (event.GetType() != blink::WebInputEvent::Type::kGestureScrollBegin)
last_interactive_input_event_time_ = ui::EventTimeForNow();
observers_.NotifyObservers(&WebContentsObserver::DidGetUserInteraction,
event);
}
bool WebContentsImpl::ShouldIgnoreInputEvents() {
WebContentsImpl* web_contents = this;
while (web_contents) {
if (web_contents->ignore_input_events_)
return true;
web_contents = web_contents->GetOuterWebContents();
}
return false;
}
void WebContentsImpl::FocusOwningWebContents(
RenderWidgetHostImpl* render_widget_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::FocusOwningWebContents",
"render_widget_host", render_widget_host);
RenderWidgetHostImpl* main_frame_widget_host =
GetMainFrame()->GetRenderWidgetHost();
RenderWidgetHostImpl* focused_widget =
GetFocusedRenderWidgetHost(main_frame_widget_host);
if (focused_widget != render_widget_host &&
(!focused_widget ||
focused_widget->delegate() != render_widget_host->delegate())) {
SetAsFocusedWebContentsIfNecessary();
}
}
void WebContentsImpl::OnIgnoredUIEvent() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::OnIgnoredUIEvent");
// Notify observers.
observers_.NotifyObservers(&WebContentsObserver::DidGetIgnoredUIEvent);
}
void WebContentsImpl::RendererUnresponsive(
RenderWidgetHostImpl* render_widget_host,
base::RepeatingClosure hang_monitor_restarter) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::RendererUnresponsive",
"render_widget_host", render_widget_host);
if (ShouldIgnoreUnresponsiveRenderer())
return;
// Do not report hangs (to task manager, to hang renderer dialog, etc.) for
// invisible tabs (like extension background page, background tabs). See
// https://crbug.com/881812 for rationale and for choosing the visibility
// (rather than process priority) as the signal here.
if (GetVisibility() != Visibility::VISIBLE)
return;
if (!render_widget_host->renderer_initialized())
return;
observers_.NotifyObservers(&WebContentsObserver::OnRendererUnresponsive,
render_widget_host->GetProcess());
if (delegate_)
delegate_->RendererUnresponsive(this, render_widget_host,
std::move(hang_monitor_restarter));
}
void WebContentsImpl::RendererResponsive(
RenderWidgetHostImpl* render_widget_host) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::RenderResponsive",
"render_widget_host", render_widget_host);
observers_.NotifyObservers(&WebContentsObserver::OnRendererResponsive,
render_widget_host->GetProcess());
if (delegate_)
delegate_->RendererResponsive(this, render_widget_host);
}
void WebContentsImpl::BeforeUnloadFiredFromRenderManager(
bool proceed,
const base::TimeTicks& proceed_time,
bool* proceed_to_fire_unload) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::BeforeUnloadFiredFromRenderManager");
observers_.NotifyObservers(&WebContentsObserver::BeforeUnloadFired, proceed,
proceed_time);
if (delegate_)
delegate_->BeforeUnloadFired(this, proceed, proceed_to_fire_unload);
// Note: |this| might be deleted at this point.
}
void WebContentsImpl::CancelModalDialogsForRenderManager() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::CancelModalDialogsForRenderManager");
// We need to cancel modal dialogs when doing a process swap, since the load
// deferrer would prevent us from swapping out. We also clear the state
// because this is a cross-process navigation, which means that it's a new
// site that should not have to pay for the sins of its predecessor.
//
// Note that we don't bother telling |browser_plugin_embedder_| because the
// cross-process navigation will either destroy the browser plugins or not
// require their dialogs to close.
if (dialog_manager_) {
dialog_manager_->CancelDialogs(this, /*reset_state=*/true);
}
}
void WebContentsImpl::NotifySwappedFromRenderManager(
RenderFrameHostImpl* old_frame,
RenderFrameHostImpl* new_frame) {
TRACE_EVENT2("content", "WebContentsImpl::NotifySwappedFromRenderManager",
"old_render_frame_host", old_frame, "new_render_frame_host",
new_frame);
DCHECK_NE(new_frame->lifecycle_state(),
RenderFrameHostImpl::LifecycleStateImpl::kSpeculative);
// Only fire RenderViewHostChanged if it is related to our FrameTree, as
// observers can not deal with events coming from non-primary FrameTree.
// TODO(https://crbug.com/1168562): Update observers to deal with the events,
// and fire events for all frame trees.
if (new_frame->IsInPrimaryMainFrame()) {
// The |new_frame| and its various compadres are already swapped into place
// for the WebContentsImpl when this method is called.
DCHECK_EQ(
primary_frame_tree_.root()->render_manager()->GetRenderWidgetHostView(),
new_frame->GetView());
RenderViewHost* old_rvh =
old_frame ? old_frame->GetRenderViewHost() : nullptr;
RenderViewHost* new_rvh = new_frame->GetRenderViewHost();
// |old_rvh| and |new_rvh| might be equal when navigating from a crashed
// RenderFrameHost to a new same-site one. With RenderDocument, this will
// happen for every same-site navigation.
if (old_rvh != new_rvh)
NotifyViewSwapped(old_rvh, new_rvh);
auto* rwhv = static_cast<RenderWidgetHostViewBase*>(new_frame->GetView());
if (rwhv) {
rwhv->SetMainFrameAXTreeID(new_frame->GetAXTreeID());
// The RenderWidgetHostView for the speculative RenderFrameHost is not
// resized with the current RenderFrameHost while a navigation is
// pending. So when we swap in the main frame, we need to update the
// RenderWidgetHostView's size.
//
// Historically, this was done to fix b/1079768 for interstitials.
rwhv->SetSize(GetSizeForMainFrame());
}
NotifyPrimaryMainFrameProcessIsAlive();
}
NotifyFrameSwapped(old_frame, new_frame);
}
void WebContentsImpl::NotifySwappedFromRenderManagerWithoutFallbackContent(
RenderFrameHostImpl* new_frame) {
auto* rwhv = static_cast<RenderWidgetHostViewBase*>(new_frame->GetView());
if (rwhv)
rwhv->ClearFallbackSurfaceForCommitPending();
}
void WebContentsImpl::NotifyMainFrameSwappedFromRenderManager(
RenderFrameHostImpl* old_frame,
RenderFrameHostImpl* new_frame) {
// Only fire RenderViewHostChanged if it is
// related to our FrameTree, as observers cannot deal with events coming
// from non-primary FrameTree.
// TODO(https://crbug.com/1168562): Update observers to deal with the events,
// and fire events for all frame trees.
if (!new_frame->IsInPrimaryMainFrame()) {
return;
}
NotifyViewSwapped(old_frame ? old_frame->GetRenderViewHost() : nullptr,
new_frame->GetRenderViewHost());
}
std::unique_ptr<WebUIImpl> WebContentsImpl::CreateWebUIForRenderFrameHost(
RenderFrameHostImpl* frame_host,
const GURL& url) {
return CreateWebUI(frame_host, url);
}
void WebContentsImpl::CreateRenderWidgetHostViewForRenderManager(
RenderViewHost* render_view_host) {
OPTIONAL_TRACE_EVENT1(
"content", "WebContentsImpl::CreateRenderWidgetHostViewForRenderManager",
"render_view_host", render_view_host);
// TODO(crbug.com/1254770): Fix this for portals.
bool is_inner_frame_tree = static_cast<RenderViewHostImpl*>(render_view_host)
->frame_tree()
->type() == FrameTree::Type::kFencedFrame;
if (is_inner_frame_tree) {
WebContentsViewChildFrame::CreateRenderWidgetHostViewForInnerFrameTree(
this, render_view_host->GetWidget());
} else {
RenderWidgetHostViewBase* rwh_view =
view_->CreateViewForWidget(render_view_host->GetWidget());
view_->SetOverscrollControllerEnabled(CanOverscrollContent());
rwh_view->SetSize(GetSizeForMainFrame());
}
}
void WebContentsImpl::ReattachOuterDelegateIfNeeded() {
if (node_.outer_web_contents())
ReattachToOuterWebContentsFrame();
}
bool WebContentsImpl::CreateRenderViewForRenderManager(
RenderViewHost* render_view_host,
const absl::optional<blink::FrameToken>& opener_frame_token,
RenderFrameProxyHost* proxy_host) {
TRACE_EVENT1("browser,navigation",
"WebContentsImpl::CreateRenderViewForRenderManager",
"render_view_host", render_view_host);
auto* rvh_impl = static_cast<RenderViewHostImpl*>(render_view_host);
// Observers should not destroy the WebContents here or we will crash as the
// stack unwinds. See crbug.com/1181043.
base::AutoReset<bool> scope(&prevent_destruction_, true);
if (!proxy_host)
CreateRenderWidgetHostViewForRenderManager(render_view_host);
const auto proxy_routing_id =
proxy_host ? proxy_host->GetRoutingID() : MSG_ROUTING_NONE;
// TODO(https://crbug.com/1171646): Given MPArch, should we pass
// opened_by_another_window_ for non primary FrameTrees?
if (!rvh_impl->CreateRenderView(opener_frame_token, proxy_routing_id,
opened_by_another_window_)) {
return false;
}
// Set the TextAutosizer state from the main frame's renderer on the new view,
// but only if it's not for the main frame. Main frame renderers should create
// this state themselves from up-to-date values, so we shouldn't override it
// with the cached values.
if (!rvh_impl->GetMainRenderFrameHost() && proxy_host) {
proxy_host->GetAssociatedRemoteMainFrame()->UpdateTextAutosizerPageInfo(
proxy_host->frame_tree_node()
->current_frame_host()
->GetPage()
.text_autosizer_page_info()
.Clone());
}
// If `render_view_host` is for an inner WebContents, ensure that its
// RenderWidgetHostView is properly reattached to the outer WebContents. Note
// that this should only be done when `render_view_host` is already the
// current RenderViewHost in this WebContents. If it isn't, the reattachment
// will happen later when `render_view_host` becomes current as part of
// committing the speculative RenderFrameHost it's associated with.
if (!proxy_host && render_view_host == GetRenderViewHost())
ReattachOuterDelegateIfNeeded();
SetHistoryOffsetAndLengthForView(
render_view_host,
rvh_impl->frame_tree()->controller().GetLastCommittedEntryIndex(),
rvh_impl->frame_tree()->controller().GetEntryCount());
#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC) && !BUILDFLAG(IS_ANDROID)
// Force a ViewMsg_Resize to be sent, needed to make plugins show up on
// linux. See crbug.com/83941.
RenderWidgetHostView* rwh_view = render_view_host->GetWidget()->GetView();
if (rwh_view) {
if (RenderWidgetHost* render_widget_host = rwh_view->GetRenderWidgetHost())
render_widget_host->SynchronizeVisualProperties();
}
#endif
return true;
}
#if BUILDFLAG(IS_ANDROID)
base::android::ScopedJavaLocalRef<jobject>
WebContentsImpl::GetJavaWebContents() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
return GetWebContentsAndroid()->GetJavaObject();
}
WebContentsAndroid* WebContentsImpl::GetWebContentsAndroid() {
if (!web_contents_android_) {
web_contents_android_ = std::make_unique<WebContentsAndroid>(this);
}
return web_contents_android_.get();
}
void WebContentsImpl::ClearWebContentsAndroid() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
web_contents_android_.reset();
}
void WebContentsImpl::ActivateNearestFindResult(float x, float y) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::ActivateNearestFindResult");
GetOrCreateFindRequestManager()->ActivateNearestFindResult(x, y);
}
void WebContentsImpl::RequestFindMatchRects(int current_version) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::RequestFindMatchRects");
GetOrCreateFindRequestManager()->RequestFindMatchRects(current_version);
}
service_manager::InterfaceProvider* WebContentsImpl::GetJavaInterfaces() {
if (!java_interfaces_) {
mojo::PendingRemote<service_manager::mojom::InterfaceProvider> provider;
BindInterfaceRegistryForWebContents(
provider.InitWithNewPipeAndPassReceiver(), this);
java_interfaces_ = std::make_unique<service_manager::InterfaceProvider>(
base::ThreadTaskRunnerHandle::Get());
java_interfaces_->Bind(std::move(provider));
}
return java_interfaces_.get();
}
#endif
bool WebContentsImpl::CompletedFirstVisuallyNonEmptyPaint() {
return GetPrimaryPage().did_first_visually_non_empty_paint();
}
void WebContentsImpl::OnDidDownloadImage(
base::WeakPtr<RenderFrameHostImpl> rfh,
ImageDownloadCallback callback,
int id,
const GURL& image_url,
int32_t http_status_code,
const std::vector<SkBitmap>& images,
const std::vector<gfx::Size>& original_image_sizes) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnDidDownloadImage",
"image_url", image_url);
// Guard against buggy or compromised renderers that could violate the API
// contract that |images| and |original_image_sizes| must have the same
// length.
if (images.size() != original_image_sizes.size()) {
if (rfh) {
ReceivedBadMessage(rfh->GetProcess(),
bad_message::WCI_INVALID_DOWNLOAD_IMAGE_RESULT);
}
// Respond with a 400 to indicate that something went wrong.
std::move(callback).Run(id, 400, image_url, std::vector<SkBitmap>(),
std::vector<gfx::Size>());
return;
}
std::move(callback).Run(id, http_status_code, image_url, images,
original_image_sizes);
}
// TODO(https://crbug.com/1171203): Needs to be made MPArch proof.
void WebContentsImpl::OnDialogClosed(int render_process_id,
int render_frame_id,
JavaScriptDialogCallback response_callback,
base::ScopedClosureRunner fullscreen_block,
bool dialog_was_suppressed,
bool success,
const std::u16string& user_input) {
RenderFrameHostImpl* rfh =
RenderFrameHostImpl::FromID(render_process_id, render_frame_id);
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnDialogClosed",
"render_frame_host", rfh);
last_dialog_suppressed_ = dialog_was_suppressed;
fullscreen_block.RunAndReset();
javascript_dialog_dismiss_notifier_.reset();
if (is_showing_before_unload_dialog_ && !success) {
// It is possible for the current RenderFrameHost to have changed in the
// meantime. Do not reset the navigation state in that case.
if (rfh && rfh == rfh->frame_tree_node()->current_frame_host()) {
rfh->frame_tree_node()->BeforeUnloadCanceled();
rfh->frame_tree()->controller().DiscardNonCommittedEntries();
}
// Update the URL display either way, to avoid showing a stale URL.
NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
observers_.NotifyObservers(
&WebContentsObserver::BeforeUnloadDialogCancelled);
}
std::move(response_callback).Run(success, user_input);
std::vector<protocol::PageHandler*> page_handlers =
protocol::PageHandler::EnabledForWebContents(this);
for (auto* handler : page_handlers)
handler->DidCloseJavaScriptDialog(success, user_input);
is_showing_javascript_dialog_ = false;
is_showing_before_unload_dialog_ = false;
}
RenderFrameHostManager* WebContentsImpl::GetRenderManager() const {
return primary_frame_tree_.root()->render_manager();
}
BrowserPluginGuest* WebContentsImpl::GetBrowserPluginGuest() const {
return browser_plugin_guest_.get();
}
void WebContentsImpl::SetBrowserPluginGuest(
std::unique_ptr<BrowserPluginGuest> guest) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SetBrowserPluginGuest");
DCHECK(!browser_plugin_guest_);
DCHECK(guest);
browser_plugin_guest_ = std::move(guest);
}
base::UnguessableToken WebContentsImpl::GetAudioGroupId() {
return GetAudioStreamFactory()->group_id();
}
const std::vector<blink::mojom::FaviconURLPtr>&
WebContentsImpl::GetFaviconURLs() {
return GetMainFrame()->FaviconURLs();
}
// The Mac implementation of the next two methods is in
// web_contents_impl_mac.mm
#if !BUILDFLAG(IS_MAC)
void WebContentsImpl::Resize(const gfx::Rect& new_bounds) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::Resize");
#if defined(USE_AURA)
aura::Window* window = GetNativeView();
window->SetBounds(gfx::Rect(window->bounds().origin(), new_bounds.size()));
#elif BUILDFLAG(IS_ANDROID)
content::RenderWidgetHostView* view = GetRenderWidgetHostView();
if (view)
view->SetBounds(new_bounds);
#endif
}
gfx::Size WebContentsImpl::GetSize() {
#if defined(USE_AURA)
aura::Window* window = GetNativeView();
return window->bounds().size();
#elif BUILDFLAG(IS_ANDROID)
ui::ViewAndroid* view_android = GetNativeView();
return view_android->bounds().size();
#endif
}
#endif // !BUILDFLAG(IS_MAC)
gfx::Rect WebContentsImpl::GetWindowsControlsOverlayRect() const {
return window_controls_overlay_rect_;
}
void WebContentsImpl::UpdateWindowControlsOverlay(
const gfx::Rect& bounding_rect) {
if (window_controls_overlay_rect_ == bounding_rect)
return;
window_controls_overlay_rect_ = bounding_rect;
// Updates to the |window_controls_overlay_rect_| are sent via
// the VisualProperties message.
if (RenderWidgetHost* render_widget_host =
GetMainFrame()->GetRenderWidgetHost())
render_widget_host->SynchronizeVisualProperties();
}
BrowserPluginEmbedder* WebContentsImpl::GetBrowserPluginEmbedder() const {
return browser_plugin_embedder_.get();
}
void WebContentsImpl::CreateBrowserPluginEmbedderIfNecessary() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::CreateBrowserPluginEmbedderIfNecessary");
if (browser_plugin_embedder_)
return;
browser_plugin_embedder_.reset(BrowserPluginEmbedder::Create(this));
}
gfx::Size WebContentsImpl::GetSizeForMainFrame() {
if (delegate_) {
// The delegate has a chance to specify a size independent of the UI.
gfx::Size delegate_size = delegate_->GetSizeForNewRenderView(this);
if (!delegate_size.IsEmpty())
return delegate_size;
}
// Device emulation, when enabled, can specify a size independent of the UI.
if (!device_emulation_size_.IsEmpty())
return device_emulation_size_;
return GetContainerBounds().size();
}
void WebContentsImpl::OnFrameTreeNodeDestroyed(FrameTreeNode* node) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::OnFrameTreeNodeDestroyed",
"node", node);
// If we are the focused frame tree and are destroying the root node
// reassign the focused frame tree node.
if (!node->parent() && GetFocusedFrameTree() == node->frame_tree() &&
node->frame_tree() != &primary_frame_tree_) {
FrameTreeNode* frame_in_embedder =
node->render_manager()->GetOuterDelegateNode();
SetFocusedFrameTree(frame_in_embedder ? frame_in_embedder->frame_tree()
: &primary_frame_tree_);
}
observers_.NotifyObservers(&WebContentsObserver::FrameDeleted,
node->frame_tree_node_id());
}
void WebContentsImpl::OnPreferredSizeChanged(const gfx::Size& old_size) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::OnPreferredSizeChanged");
if (!delegate_)
return;
const gfx::Size new_size = GetPreferredSize();
if (new_size != old_size)
delegate_->UpdatePreferredSize(this, new_size);
}
std::unique_ptr<WebUIImpl> WebContentsImpl::CreateWebUI(
RenderFrameHostImpl* frame_host,
const GURL& url) {
TRACE_EVENT2("content", "WebContentsImpl::CreateWebUI", "frame_host",
frame_host, "url", url);
std::unique_ptr<WebUIImpl> web_ui =
std::make_unique<WebUIImpl>(this, frame_host);
std::unique_ptr<WebUIController> controller(
WebUIControllerFactoryRegistry::GetInstance()
->CreateWebUIControllerForURL(web_ui.get(), url));
if (controller) {
web_ui->SetController(std::move(controller));
return web_ui;
}
return nullptr;
}
FindRequestManager* WebContentsImpl::GetFindRequestManager() {
for (auto* contents = this; contents;
contents = contents->GetOuterWebContents()) {
if (contents->find_request_manager_)
return contents->find_request_manager_.get();
}
return nullptr;
}
FindRequestManager* WebContentsImpl::GetOrCreateFindRequestManager() {
if (FindRequestManager* manager = GetFindRequestManager())
return manager;
DCHECK(!browser_plugin_guest_ || GetOuterWebContents());
// No existing FindRequestManager found, so one must be created.
find_request_manager_ = std::make_unique<FindRequestManager>(this);
// Concurrent find sessions must not overlap, so destroy any existing
// FindRequestManagers in any inner WebContentses.
for (WebContents* contents : GetWebContentsAndAllInner()) {
auto* web_contents_impl = static_cast<WebContentsImpl*>(contents);
if (web_contents_impl == this)
continue;
if (web_contents_impl->find_request_manager_) {
web_contents_impl->find_request_manager_->StopFinding(
STOP_FIND_ACTION_CLEAR_SELECTION);
web_contents_impl->find_request_manager_.release();
}
}
return find_request_manager_.get();
}
void WebContentsImpl::NotifyFindReply(int request_id,
int number_of_matches,
const gfx::Rect& selection_rect,
int active_match_ordinal,
bool final_update) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::NotifyFindReply");
if (delegate_ && !IsBeingDestroyed() &&
!GetMainFrame()->GetProcess()->FastShutdownStarted()) {
delegate_->FindReply(this, request_id, number_of_matches, selection_rect,
active_match_ordinal, final_update);
}
}
void WebContentsImpl::IncrementBluetoothConnectedDeviceCount() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::IncrementBluetoothConnectedDeviceCount");
// Trying to invalidate the tab state while being destroyed could result in a
// use after free.
if (IsBeingDestroyed()) {
return;
}
// Notify for UI updates if the state changes.
bluetooth_connected_device_count_++;
if (bluetooth_connected_device_count_ == 1) {
OnIsConnectedToBluetoothDeviceChanged(true);
}
}
void WebContentsImpl::DecrementBluetoothConnectedDeviceCount() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::DecrementBluetoothConnectedDeviceCount");
// Trying to invalidate the tab state while being destroyed could result in a
// use after free.
if (IsBeingDestroyed()) {
return;
}
// Notify for UI updates if the state changes.
DCHECK_NE(bluetooth_connected_device_count_, 0u);
bluetooth_connected_device_count_--;
if (bluetooth_connected_device_count_ == 0) {
OnIsConnectedToBluetoothDeviceChanged(false);
}
}
void WebContentsImpl::OnIsConnectedToBluetoothDeviceChanged(
bool is_connected_to_bluetooth_device) {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::OnIsConnectedToBluetoothDeviceChanged");
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
observers_.NotifyObservers(
&WebContentsObserver::OnIsConnectedToBluetoothDeviceChanged,
is_connected_to_bluetooth_device);
}
void WebContentsImpl::IncrementBluetoothScanningSessionsCount() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::IncrementBluetoothScanningSessionsCount");
// Trying to invalidate the tab state while being destroyed could result in a
// use after free.
if (IsBeingDestroyed())
return;
// Notify for UI updates if the state changes.
bluetooth_scanning_sessions_count_++;
if (bluetooth_scanning_sessions_count_ == 1)
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
}
void WebContentsImpl::DecrementBluetoothScanningSessionsCount() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::DecrementBluetoothScanningSessionsCount");
// Trying to invalidate the tab state while being destroyed could result in a
// use after free.
if (IsBeingDestroyed())
return;
DCHECK_NE(0u, bluetooth_scanning_sessions_count_);
bluetooth_scanning_sessions_count_--;
if (bluetooth_scanning_sessions_count_ == 0)
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
}
void WebContentsImpl::IncrementSerialActiveFrameCount() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::IncrementSerialActiveFrameCount");
// Trying to invalidate the tab state while being destroyed could result in a
// use after free.
if (IsBeingDestroyed())
return;
// Notify for UI updates if the state changes.
serial_active_frame_count_++;
if (serial_active_frame_count_ == 1)
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
}
void WebContentsImpl::DecrementSerialActiveFrameCount() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::DecrementSerialActiveFrameCount");
// Trying to invalidate the tab state while being destroyed could result in a
// use after free.
if (IsBeingDestroyed())
return;
// Notify for UI updates if the state changes.
DCHECK_NE(0u, serial_active_frame_count_);
serial_active_frame_count_--;
if (serial_active_frame_count_ == 0)
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
}
void WebContentsImpl::IncrementHidActiveFrameCount() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::IncrementHidActiveFrameCount");
// Trying to invalidate the tab state while being destroyed could result in a
// use after free.
if (IsBeingDestroyed())
return;
// Notify for UI updates if the active frame count transitions from zero to
// non-zero.
hid_active_frame_count_++;
if (hid_active_frame_count_ == 1)
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
}
void WebContentsImpl::DecrementHidActiveFrameCount() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::DecrementHidActiveFrameCount");
// Trying to invalidate the tab state while being destroyed could result in a
// use after free.
if (IsBeingDestroyed())
return;
// Notify for UI updates if the active frame count transitions from non-zero
// to zero.
DCHECK_NE(0u, hid_active_frame_count_);
hid_active_frame_count_--;
if (hid_active_frame_count_ == 0)
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
}
void WebContentsImpl::IncrementFileSystemAccessHandleCount() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::IncrementFileSystemAccessHandleCount");
// Trying to invalidate the tab state while being destroyed could result in a
// use after free.
if (IsBeingDestroyed())
return;
// Notify for UI updates if the state changes. Need both TYPE_TAB and TYPE_URL
// to update both the tab-level usage indicator and the usage indicator in the
// omnibox.
file_system_access_handle_count_++;
if (file_system_access_handle_count_ == 1) {
NotifyNavigationStateChanged(static_cast<content::InvalidateTypes>(
INVALIDATE_TYPE_TAB | INVALIDATE_TYPE_URL));
}
}
void WebContentsImpl::DecrementFileSystemAccessHandleCount() {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::DecrementFileSystemAccessHandleCount");
// Trying to invalidate the tab state while being destroyed could result in a
// use after free.
if (IsBeingDestroyed())
return;
// Notify for UI updates if the state changes. Need both TYPE_TAB and TYPE_URL
// to update both the tab-level usage indicator and the usage indicator in the
// omnibox.
DCHECK_NE(0u, file_system_access_handle_count_);
file_system_access_handle_count_--;
if (file_system_access_handle_count_ == 0) {
NotifyNavigationStateChanged(static_cast<content::InvalidateTypes>(
INVALIDATE_TYPE_TAB | INVALIDATE_TYPE_URL));
}
}
void WebContentsImpl::SetHasPersistentVideo(bool has_persistent_video) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::SetHasPersistentVideo",
"has_persistent_video", has_persistent_video,
"had_persistent_value", has_persistent_video_);
if (has_persistent_video_ == has_persistent_video)
return;
has_persistent_video_ = has_persistent_video;
NotifyPreferencesChanged();
media_web_contents_observer()->RequestPersistentVideo(has_persistent_video);
}
void WebContentsImpl::SetSpatialNavigationDisabled(bool disabled) {
OPTIONAL_TRACE_EVENT2(
"content", "WebContentsImpl::SetSpatialNavigationDisabled", "disabled",
disabled, "was_disabled", is_spatial_navigation_disabled_);
if (is_spatial_navigation_disabled_ == disabled)
return;
is_spatial_navigation_disabled_ = disabled;
NotifyPreferencesChanged();
}
void WebContentsImpl::BrowserPluginGuestWillDetach() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::BrowserPluginGuestWillDetach");
WebContentsImpl* outermost = GetOutermostWebContents();
if (this != outermost && ContainsOrIsFocusedWebContents())
outermost->SetAsFocusedWebContentsIfNecessary();
}
PictureInPictureResult WebContentsImpl::EnterPictureInPicture() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::EnterPictureInPicture");
return delegate_ ? delegate_->EnterPictureInPicture(this)
: PictureInPictureResult::kNotSupported;
}
void WebContentsImpl::ExitPictureInPicture() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::ExitPictureInPicture");
if (delegate_)
delegate_->ExitPictureInPicture();
}
void WebContentsImpl::OnXrHasRenderTarget(
const viz::FrameSinkId& frame_sink_id) {
xr_render_target_ = frame_sink_id;
observers_.NotifyObservers(&WebContentsObserver::CaptureTargetChanged);
}
viz::FrameSinkId WebContentsImpl::GetCaptureFrameSinkId() {
if (xr_render_target_.is_valid())
return xr_render_target_;
RenderWidgetHostView* host_view = GetRenderWidgetHostView();
if (!host_view) {
return {};
}
RenderWidgetHostViewBase* base_view =
static_cast<RenderWidgetHostViewBase*>(host_view);
return base_view->GetFrameSinkId();
}
#if BUILDFLAG(IS_ANDROID)
void WebContentsImpl::NotifyFindMatchRectsReply(
int version,
const std::vector<gfx::RectF>& rects,
const gfx::RectF& active_rect) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::NotifyFindMatchRectsReply");
if (delegate_)
delegate_->FindMatchRectsReply(this, version, rects, active_rect);
}
#endif
void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::SetForceDisableOverscrollContent",
"force_disable", force_disable);
force_disable_overscroll_content_ = force_disable;
if (view_)
view_->SetOverscrollControllerEnabled(CanOverscrollContent());
}
bool WebContentsImpl::SetDeviceEmulationSize(const gfx::Size& new_size) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SetDeviceEmulationSize");
device_emulation_size_ = new_size;
RenderWidgetHostView* rwhv = GetMainFrame()->GetView();
const gfx::Size current_size = rwhv->GetViewBounds().size();
if (view_size_before_emulation_.IsEmpty())
view_size_before_emulation_ = current_size;
if (current_size != new_size)
rwhv->SetSize(new_size);
return current_size != new_size;
}
void WebContentsImpl::ClearDeviceEmulationSize() {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::ClearDeviceEmulationSize");
RenderWidgetHostView* rwhv = GetMainFrame()->GetView();
// WebContentsView could get resized during emulation, which also resizes
// RWHV. If it happens, assume user would like to keep using the size after
// emulation.
// TODO(jzfeng): Prohibit resizing RWHV through any other means (at least when
// WebContentsView size changes).
if (!view_size_before_emulation_.IsEmpty() && rwhv &&
rwhv->GetViewBounds().size() == device_emulation_size_) {
rwhv->SetSize(view_size_before_emulation_);
}
device_emulation_size_ = gfx::Size();
view_size_before_emulation_ = gfx::Size();
}
ForwardingAudioStreamFactory* WebContentsImpl::GetAudioStreamFactory() {
if (!audio_stream_factory_) {
audio_stream_factory_.emplace(
this,
// BrowserMainLoop::GetInstance() may be null in unit tests.
BrowserMainLoop::GetInstance()
? static_cast<media::UserInputMonitorBase*>(
BrowserMainLoop::GetInstance()->user_input_monitor())
: nullptr,
AudioStreamBrokerFactory::CreateImpl());
}
return &*audio_stream_factory_;
}
void WebContentsImpl::MediaStartedPlaying(
const WebContentsObserver::MediaPlayerInfo& media_info,
const MediaPlayerId& id) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::MediaStartedPlaying");
if (media_info.has_video)
currently_playing_video_count_++;
observers_.NotifyObservers(&WebContentsObserver::MediaStartedPlaying,
media_info, id);
}
void WebContentsImpl::MediaStoppedPlaying(
const WebContentsObserver::MediaPlayerInfo& media_info,
const MediaPlayerId& id,
WebContentsObserver::MediaStoppedReason reason) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::MediaStoppedPlaying");
if (media_info.has_video)
currently_playing_video_count_--;
observers_.NotifyObservers(&WebContentsObserver::MediaStoppedPlaying,
media_info, id, reason);
}
void WebContentsImpl::MediaResized(const gfx::Size& size,
const MediaPlayerId& id) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::MediaResized");
cached_video_sizes_[id] = size;
observers_.NotifyObservers(&WebContentsObserver::MediaResized, size, id);
}
void WebContentsImpl::MediaEffectivelyFullscreenChanged(bool is_fullscreen) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::MediaEffectivelyFullscreenChanged",
"is_fullscreen", is_fullscreen);
observers_.NotifyObservers(
&WebContentsObserver::MediaEffectivelyFullscreenChanged, is_fullscreen);
}
void WebContentsImpl::MediaDestroyed(const MediaPlayerId& id) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::MediaDestroyed");
observers_.NotifyObservers(&WebContentsObserver::MediaDestroyed, id);
}
int WebContentsImpl::GetCurrentlyPlayingVideoCount() {
return currently_playing_video_count_;
}
absl::optional<gfx::Size> WebContentsImpl::GetFullscreenVideoSize() {
absl::optional<MediaPlayerId> id =
media_web_contents_observer_->GetFullscreenVideoMediaPlayerId();
if (id && base::Contains(cached_video_sizes_, id.value()))
return absl::optional<gfx::Size>(cached_video_sizes_[id.value()]);
return absl::nullopt;
}
void WebContentsImpl::AudioContextPlaybackStarted(RenderFrameHostImpl* host,
int context_id) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::AudioContextPlaybackStarted",
"render_frame_host", host);
WebContentsObserver::AudioContextId audio_context_id(host, context_id);
observers_.NotifyObservers(&WebContentsObserver::AudioContextPlaybackStarted,
audio_context_id);
}
void WebContentsImpl::AudioContextPlaybackStopped(RenderFrameHostImpl* host,
int context_id) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::AudioContextPlaybackStopped",
"render_frame_host", host);
WebContentsObserver::AudioContextId audio_context_id(host, context_id);
observers_.NotifyObservers(&WebContentsObserver::AudioContextPlaybackStopped,
audio_context_id);
}
void WebContentsImpl::OnFrameAudioStateChanged(RenderFrameHostImpl* host,
bool is_audible) {
OPTIONAL_TRACE_EVENT2("content", "WebContentsImpl::OnFrameAudioStateChanged",
"render_frame_host", host, "is_audible", is_audible);
observers_.NotifyObservers(&WebContentsObserver::OnFrameAudioStateChanged,
host, is_audible);
}
media::MediaMetricsProvider::RecordAggregateWatchTimeCallback
WebContentsImpl::GetRecordAggregateWatchTimeCallback(
const GURL& page_main_frame_last_committed_url) {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::RecordAggregateWatchTimeCallback");
if (!delegate_ || !delegate_->GetDelegateWeakPtr())
return base::DoNothing();
return base::BindRepeating(
[](base::WeakPtr<WebContentsDelegate> delegate,
GURL page_main_frame_last_committed_url,
base::TimeDelta total_watch_time, base::TimeDelta time_stamp,
bool has_video, bool has_audio) {
content::MediaPlayerWatchTime watch_time(
page_main_frame_last_committed_url,
page_main_frame_last_committed_url.DeprecatedGetOriginAsURL(),
total_watch_time, time_stamp, has_video, has_audio);
// Save the watch time if the delegate is still alive.
if (delegate)
delegate->MediaWatchTimeChanged(watch_time);
},
delegate_->GetDelegateWeakPtr(), page_main_frame_last_committed_url);
}
std::vector<FrameTreeNode*> WebContentsImpl::GetUnattachedOwnedNodes(
RenderFrameHostImpl* owner) {
std::vector<FrameTreeNode*> unattached_owned_nodes;
BrowserPluginGuestManager* guest_manager =
GetBrowserContext()->GetGuestManager();
if (owner == GetMainFrame() && guest_manager) {
guest_manager->ForEachUnattachedGuest(
this, base::BindRepeating(
[](std::vector<FrameTreeNode*>& unattached_owned_nodes,
WebContents* guest_contents) {
unattached_owned_nodes.push_back(
static_cast<WebContentsImpl*>(guest_contents)
->primary_frame_tree_.root());
},
std::ref(unattached_owned_nodes)));
}
// TODO(mcnee): Also include orphaned portals here.
// See https://crbug.com/1196715
return unattached_owned_nodes;
}
void WebContentsImpl::IsClipboardPasteContentAllowed(
const GURL& url,
const ui::ClipboardFormatType& data_type,
const std::string& data,
IsClipboardPasteContentAllowedCallback callback) {
++suppress_unresponsive_renderer_count_;
GetContentClient()->browser()->IsClipboardPasteContentAllowed(
this, url, data_type, data,
base::BindOnce(
&WebContentsImpl::IsClipboardPasteContentAllowedWrapperCallback,
weak_factory_.GetWeakPtr(), std::move(callback)));
}
void WebContentsImpl::IsClipboardPasteContentAllowedWrapperCallback(
IsClipboardPasteContentAllowedCallback callback,
ClipboardPasteContentAllowed allowed) {
std::move(callback).Run(allowed);
--suppress_unresponsive_renderer_count_;
}
void WebContentsImpl::BindScreenOrientation(
RenderFrameHost* rfh,
mojo::PendingAssociatedReceiver<device::mojom::ScreenOrientation>
receiver) {
screen_orientation_provider_->BindScreenOrientation(rfh, std::move(receiver));
}
bool WebContentsImpl::HasSeenRecentScreenOrientationChange() {
static constexpr base::TimeDelta kMaxInterval = base::Seconds(1);
base::TimeDelta delta =
ui::EventTimeForNow() - last_screen_orientation_change_time_;
// Return whether a screen orientation change happened in the last 1 second.
return delta <= kMaxInterval;
}
bool WebContentsImpl::IsTransientAllowFullscreenActive() const {
return transient_allow_fullscreen_.IsActive();
}
bool WebContentsImpl::IsBackForwardCacheSupported() {
if (!GetDelegate())
return false;
return GetDelegate()->IsBackForwardCacheSupported();
}
FrameTree* WebContentsImpl::LoadingTree() {
return &GetPrimaryFrameTree();
}
void WebContentsImpl::DidChangeScreenOrientation() {
last_screen_orientation_change_time_ = ui::EventTimeForNow();
}
bool WebContentsImpl::ShowPopupMenu(
RenderFrameHostImpl* render_frame_host,
mojo::PendingRemote<blink::mojom::PopupMenuClient>* popup_client,
const gfx::Rect& bounds,
int32_t item_height,
double font_size,
int32_t selected_item,
std::vector<blink::mojom::MenuItemPtr>* menu_items,
bool right_aligned,
bool allow_multiple_selection) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::ShowPopupMenu",
"render_frame_host", render_frame_host);
DCHECK(render_frame_host->IsActive());
if (show_poup_menu_callback_) {
std::move(show_poup_menu_callback_).Run(bounds);
return true;
}
#if BUILDFLAG(IS_MAC)
if (browser_plugin_guest_) {
browser_plugin_guest_->ShowPopupMenu(
render_frame_host, popup_client, bounds, item_height, font_size,
selected_item, menu_items, right_aligned, allow_multiple_selection);
return true;
}
#endif
return false;
}
void WebContentsImpl::UpdateWebContentsVisibility(Visibility visibility) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::UpdateWebContentsVisibility",
"visibility", visibility);
// Occlusion is disabled when
// |switches::kDisableBackgroundingOccludedWindowsForTesting| is specified on
// the command line (to avoid flakiness in browser tests).
const bool occlusion_is_disabled =
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableBackgroundingOccludedWindowsForTesting);
if (occlusion_is_disabled && visibility == Visibility::OCCLUDED)
visibility = Visibility::VISIBLE;
if (!did_first_set_visible_) {
if (visibility == Visibility::VISIBLE) {
// A WebContents created with CreateParams::initially_hidden = false
// starts with GetVisibility() == Visibility::VISIBLE even though it is
// not really visible. Call WasShown() when it becomes visible for real as
// the page load mechanism and some WebContentsObserver rely on that.
WasShown();
did_first_set_visible_ = true;
}
// Trust the initial visibility of the WebContents and do not switch it to
// HIDDEN or OCCLUDED before it becomes VISIBLE for real. Doing so would
// result in destroying resources that would immediately be recreated (e.g.
// UpdateWebContents(HIDDEN) can be called when a WebContents is added to a
// hidden window that is about to be shown).
return;
}
if (visibility == visibility_)
return;
UpdateVisibilityAndNotifyPageAndView(visibility);
}
void WebContentsImpl::UpdateOverridingUserAgent() {
OPTIONAL_TRACE_EVENT0("content",
"WebContentsImpl::UpdateOverridingUserAgent");
NotifyPreferencesChanged();
}
void WebContentsImpl::SetJavaScriptDialogManagerForTesting(
JavaScriptDialogManager* dialog_manager) {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::SetJavaScriptDialogManagerForTesting");
dialog_manager_ = dialog_manager;
}
void WebContentsImpl::ShowInsecureLocalhostWarningIfNeeded(PageImpl& page) {
OPTIONAL_TRACE_EVENT0(
"content", "WebContentsImpl::ShowInsecureLocalhostWarningIfNeeded");
bool allow_localhost = base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kAllowInsecureLocalhost);
if (!allow_localhost)
return;
RenderFrameHostImpl& frame = page.GetMainDocument();
NavigationEntry* entry =
frame.frame_tree()->controller().GetLastCommittedEntry();
if (!entry || !net::IsLocalhost(entry->GetURL()))
return;
SSLStatus ssl_status = entry->GetSSL();
if (!net::IsCertStatusError(ssl_status.cert_status))
return;
frame.AddMessageToConsole(blink::mojom::ConsoleMessageLevel::kWarning,
"This site does not have a valid SSL "
"certificate! Without SSL, your site's and "
"visitors' data is vulnerable to theft and "
"tampering. Get a valid SSL certificate before "
" releasing your website to the public.");
}
bool WebContentsImpl::IsShowingContextMenuOnPage() const {
return showing_context_menu_;
}
download::DownloadUrlParameters::RequestHeadersType
WebContentsImpl::ParseDownloadHeaders(const std::string& headers) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::ParseDownloadHeaders",
"headers", headers);
download::DownloadUrlParameters::RequestHeadersType request_headers;
for (const base::StringPiece& key_value : base::SplitStringPiece(
headers, "\r\n", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY)) {
std::vector<std::string> pair = base::SplitString(
key_value, ":", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
if (2ul == pair.size())
request_headers.push_back(make_pair(pair[0], pair[1]));
}
return request_headers;
}
void WebContentsImpl::SetOpenerForNewContents(FrameTreeNode* opener,
bool opener_suppressed) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::SetOpenerForNewContents");
if (opener) {
FrameTreeNode* new_root = GetPrimaryFrameTree().root();
// For the "original opener", track the opener's main frame instead, because
// if the opener is a subframe, the opener tracking could be easily bypassed
// by spawning from a subframe and deleting the subframe.
// https://crbug.com/705316
new_root->SetOriginalOpener(opener->frame_tree()->root());
new_root->SetOpenerDevtoolsFrameToken(opener->devtools_frame_token());
opened_by_another_window_ = true;
if (!opener_suppressed) {
new_root->SetOpener(opener);
}
}
}
void WebContentsImpl::MediaMutedStatusChanged(const MediaPlayerId& id,
bool muted) {
OPTIONAL_TRACE_EVENT1("content", "WebContentsImpl::MediaMutedStatusChanged",
"muted", muted);
observers_.NotifyObservers(&WebContentsObserver::MediaMutedStatusChanged, id,
muted);
}
void WebContentsImpl::SetVisibilityForChildViews(bool visible) {
OPTIONAL_TRACE_EVENT1("content",
"WebContentsImpl::SetVisibilityForChildViews",
"visible", visible);
GetMainFrame()->SetVisibilityForChildViews(visible);
}
void WebContentsImpl::OnNativeThemeUpdated(ui::NativeTheme* observed_theme) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::OnNativeThemeUpdated");
DCHECK(native_theme_observation_.IsObservingSource(observed_theme));
bool using_dark_colors = observed_theme->ShouldUseDarkColors();
ui::NativeTheme::PreferredColorScheme preferred_color_scheme =
observed_theme->GetPreferredColorScheme();
ui::NativeTheme::PreferredContrast preferred_contrast =
observed_theme->GetPreferredContrast();
bool preferences_changed = false;
if (using_dark_colors_ != using_dark_colors) {
using_dark_colors_ = using_dark_colors;
preferences_changed = true;
}
if (preferred_color_scheme_ != preferred_color_scheme) {
preferred_color_scheme_ = preferred_color_scheme;
preferences_changed = true;
}
if (preferred_contrast_ != preferred_contrast) {
preferred_contrast_ = preferred_contrast;
preferences_changed = true;
}
if (preferences_changed)
NotifyPreferencesChanged();
}
void WebContentsImpl::OnCaptionStyleUpdated() {
NotifyPreferencesChanged();
}
void WebContentsImpl::OnColorProviderChanged() {
// TODO(tluk): Currently changes to theme related web prefs are being
// propagated in OnNativeThemeUpdated(). This logic should be moved here since
// there are instances where the system theme may not change but clients
// manually change the ColorProviderSource currently being observed by this
// WebContents.
// OnColorProviderChanged() might have been triggered as the result of the
// observed source being reset. If this is the case fallback to the default
// source.
if (!GetColorProviderSource()) {
SetColorProviderSource(DefaultColorProviderSource::GetInstance());
return;
}
observers_.NotifyObservers(&WebContentsObserver::OnColorProviderChanged);
}
const ui::ColorProvider& WebContentsImpl::GetColorProvider() const {
auto* source = GetColorProviderSource();
DCHECK(source);
auto* color_provider = source->GetColorProvider();
DCHECK(color_provider);
return *color_provider;
}
blink::mojom::FrameWidgetInputHandler*
WebContentsImpl::GetFocusedFrameWidgetInputHandler() {
auto* focused_render_widget_host =
GetFocusedRenderWidgetHost(GetMainFrame()->GetRenderWidgetHost());
if (!focused_render_widget_host)
return nullptr;
return focused_render_widget_host->GetFrameWidgetInputHandler();
}
ukm::SourceId WebContentsImpl::GetCurrentPageUkmSourceId() {
return GetMainFrame()->GetPageUkmSourceId();
}
void WebContentsImpl::ForEachRenderViewHost(
ForEachRenderViewHostTypes view_mask,
RenderViewHostIterationCallback on_render_view_host) {
std::set<RenderViewHostImpl*> render_view_hosts;
if ((view_mask & (ForEachRenderViewHostTypes::kPrerenderViews |
ForEachRenderViewHostTypes::kActiveViews)) != 0) {
ForEachFrameTree(base::BindRepeating(
[](ForEachRenderViewHostTypes view_mask,
std::set<RenderViewHostImpl*>& render_view_hosts,
FrameTree* frame_tree) {
// Check the view masks.
if (frame_tree->is_prerendering()) {
// We are in a prerendering page.
if ((view_mask & ForEachRenderViewHostTypes::kPrerenderViews) == 0)
return;
} else {
// We are in an active page.
if ((view_mask & ForEachRenderViewHostTypes::kActiveViews) == 0)
return;
}
for (auto& render_view_host : frame_tree->render_view_hosts()) {
render_view_hosts.insert(render_view_host.second);
}
},
view_mask, std::ref(render_view_hosts)));
}
if ((view_mask & ForEachRenderViewHostTypes::kBackForwardCacheViews) != 0) {
// Add RenderViewHostImpls in BackForwardCache.
const auto& entries = GetController().GetBackForwardCache().GetEntries();
for (const auto& entry : entries) {
std::set<RenderViewHostImpl*> bfcached_hosts = entry->render_view_hosts();
render_view_hosts.insert(bfcached_hosts.begin(), bfcached_hosts.end());
}
}
for (auto* render_view_host : render_view_hosts)
on_render_view_host.Run(render_view_host);
}
void WebContentsImpl::NotifyPageChanged(PageImpl& page) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::PrimaryPageChanged");
DCHECK_EQ(&page, &GetPrimaryPage());
// Clear |save_package_| since the primary page changed.
if (save_package_) {
save_package_->ClearPage();
save_package_.reset();
}
observers_.NotifyObservers(&WebContentsObserver::PrimaryPageChanged, page);
}
int WebContentsImpl::GetOuterDelegateFrameTreeNodeId() {
return node_.outer_contents_frame_tree_node_id();
}
void WebContentsImpl::RenderFrameHostStateChanged(
RenderFrameHost* render_frame_host,
LifecycleState old_state,
LifecycleState new_state) {
DCHECK_NE(old_state, new_state);
OPTIONAL_TRACE_EVENT2("content",
"WebContentsImpl::RenderFrameHostStateChanged",
"render_frame_host", render_frame_host, "states",
[&](perfetto::TracedValue context) {
// TODO(crbug.com/1183371): Replace this with passing
// more parameters to TRACE_EVENT directly when
// available.
auto dict = std::move(context).WriteDictionary();
dict.Add("old", old_state);
dict.Add("new", new_state);
});
#if BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC)
if (old_state == LifecycleState::kActive && !render_frame_host->GetParent()) {
// TODO(sreejakshetty): Remove this reset when ColorChooserHolder becomes
// per-frame.
// Close the color chooser popup when RenderFrameHost changes state from
// kActive.
color_chooser_holder_.reset();
}
#endif // BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_MAC)
observers_.NotifyObservers(&WebContentsObserver::RenderFrameHostStateChanged,
render_frame_host, old_state, new_state);
}
void WebContentsImpl::DecrementCapturerCount(bool stay_hidden,
bool stay_awake,
bool is_activity) {
OPTIONAL_TRACE_EVENT0("content", "WebContentsImpl::DecrementCapturerCount");
if (stay_hidden)
--hidden_capturer_count_;
else
--visible_capturer_count_;
if (stay_awake)
--stay_awake_capturer_count_;
DCHECK_GE(hidden_capturer_count_, 0);
DCHECK_GE(visible_capturer_count_, 0);
DCHECK_GE(stay_awake_capturer_count_, 0);
if (IsBeingDestroyed())
return;
view_->OnCapturerCountChanged();
const bool is_being_captured = IsBeingCaptured();
if (!is_being_captured) {
const gfx::Size old_size = preferred_size_for_capture_;
preferred_size_for_capture_ = gfx::Size();
OnPreferredSizeChanged(old_size);
}
if (capture_wake_lock_ && (!is_being_captured || !stay_awake_capturer_count_))
capture_wake_lock_->CancelWakeLock();
UpdateVisibilityAndNotifyPageAndView(GetVisibility(), is_activity);
}
void WebContentsImpl::NotifyPrimaryMainFrameProcessIsAlive() {
// The WebContents tracks the process state for the primary main frame's
// renderer.
// Consider renderer as terminated when exited with any termination status.
bool was_renderer_terminated = primary_main_frame_process_status_ !=
base::TERMINATION_STATUS_STILL_RUNNING;
SetPrimaryMainFrameProcessStatus(base::TERMINATION_STATUS_STILL_RUNNING, 0);
// Restore the focus to the tab (otherwise the focus will be on the top
// window).
if (was_renderer_terminated && !FocusLocationBarByDefault()) {
if (!delegate_ || delegate_->ShouldFocusPageAfterCrash()) {
view_->Focus();
}
}
}
void WebContentsImpl::UpdateBrowserControlsState(
cc::BrowserControlsState constraints,
cc::BrowserControlsState current,
bool animate) {
// Browser controls should be synchronised with the scroll state. Therefore,
// they are controlled from the renderer by the main RenderFrame(Host).
GetPrimaryPage().UpdateBrowserControlsState(constraints, current, animate);
}
void WebContentsImpl::SetTabSwitchStartTime(base::TimeTicks start_time,
bool destination_is_loaded) {
// TODO(crbug.com/1164477): Remove this UMA once the TabSwitchMetrics2
// experiment ends.
//
// The experiment is showing a mix shift, with more records received in
// the experiment group. The control group should preserve the old
// behaviour where Browser.Tabs.* metrics were never recorded if there
// was no RenderWidgetHostView at the time of the tab switch. To verify
// that this accounts for the mix shift, expect that:
//
// 1. The difference in Browser.Tabs.* record count between the control
// and enabled groups will match the count of
// Browser.Tabs.TabSwitchHasRWHV == false in the enabled group.
//
// 2. The count of Browser.Tabs.TabSwitchHasRWHV in the control and
// enabled groups are equal.
base::UmaHistogramBoolean("Browser.Tabs.TabSwitchHasRWHV",
GetRenderWidgetHostView());
auto* trigger = GetVisibleTimeRequestTrigger();
if (!trigger)
return;
trigger->UpdateRequest(start_time, destination_is_loaded,
/*show_reason_tab_switching=*/true,
/*show_reason_bfcache_restore=*/false);
}
VisibleTimeRequestTrigger* WebContentsImpl::GetVisibleTimeRequestTrigger() {
if (visible_time_request_trigger_.is_tab_switch_metrics2_feature_enabled())
return &visible_time_request_trigger_;
// TODO(crbug.com/1164477): Remove this obsolete implementation and return a
// reference instead of a pointer once kTabSwitchMetrics2 is validated and
// becomes the default.
if (auto* view =
static_cast<RenderWidgetHostViewBase*>(GetRenderWidgetHostView())) {
return view->GetVisibleTimeRequestTrigger();
}
return nullptr;
}
std::unique_ptr<PrerenderHandle> WebContentsImpl::StartPrerendering(
const GURL& prerendering_url,
PrerenderTriggerType trigger_type,
const std::string& embedder_histogram_suffix,
ui::PageTransition page_transition,
absl::optional<base::RepeatingCallback<bool(const GURL&)>>
url_match_predicate) {
PrerenderAttributes attributes(
prerendering_url, trigger_type, embedder_histogram_suffix,
content::Referrer(), /*initiator_origin=*/absl::nullopt, prerendering_url,
content::ChildProcessHost::kInvalidUniqueID,
/*initiator_frame_token=*/absl::nullopt,
/*initiator_frame_tree_node_id=*/RenderFrameHost::kNoFrameTreeNodeId,
ukm::kInvalidSourceId, page_transition, url_match_predicate);
int frame_tree_node_id =
GetPrerenderHostRegistry()->CreateAndStartHost(attributes, *this);
if (frame_tree_node_id != FrameTreeNode::kFrameTreeNodeInvalidId) {
return std::make_unique<PrerenderHandleImpl>(
GetPrerenderHostRegistry()->GetWeakPtr(), frame_tree_node_id,
prerendering_url);
}
return nullptr;
}
bool WebContentsImpl::CancelPrerendering(
FrameTreeNode* frame_tree_node,
PrerenderHost::FinalStatus final_status) {
if (!blink::features::IsPrerender2Enabled())
return false;
if (!frame_tree_node)
return false;
DCHECK_EQ(this, FromFrameTreeNode(frame_tree_node));
// A prerendered page is identified by its root FrameTreeNode id, so if the
// given `frame_tree_node` is in any way embedded, we need to iterate up to
// the prerender root.
if (frame_tree_node->GetParentOrOuterDocumentOrEmbedder()) {
return frame_tree_node->GetParentOrOuterDocumentOrEmbedder()
->CancelPrerendering(final_status);
}
return GetPrerenderHostRegistry()->CancelHost(
frame_tree_node->frame_tree_node_id(), final_status);
}
// static
std::pair<int, int> WebContentsImpl::GetAvailablePointerAndHoverTypes() {
// On Windows we have to temporarily allow blocking calls since
// ui::GetAvailablePointerAndHoverTypes needs to call some in order to
// figure out tablet device details in base::win::IsDeviceUsedAsATablet,
// see https://crbug.com/1262162.
#if BUILDFLAG(IS_WIN)
base::ScopedAllowBlocking scoped_allow_blocking;
#endif
return ui::GetAvailablePointerAndHoverTypes();
}
} // namespace content