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chromium / chromium / src / 9cca359959ae7fa25a2ea3d942f0447e9ee38f6a / . / content / browser / web_contents / web_contents_impl.cc
blob: 393ca67e7978bb3edc56e53ff121857126ae64ae [file] [log] [blame]
// 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 <cmath>
#include <utility>
#include <vector>
#include "base/bind.h"
#include "base/command_line.h"
#include "base/debug/dump_without_crashing.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/macros.h"
#include "base/memory/ptr_util.h"
#include "base/memory/ref_counted.h"
#include "base/metrics/histogram_macros.h"
#include "base/metrics/user_metrics.h"
#include "base/no_destructor.h"
#include "base/optional.h"
#include "base/process/process.h"
#include "base/single_thread_task_runner.h"
#include "base/stl_util.h"
#include "base/strings/string16.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "base/task/post_task.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/time/time.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "components/download/public/common/download_stats.h"
#include "components/rappor/public/rappor_utils.h"
#include "components/url_formatter/url_formatter.h"
#include "content/browser/accessibility/accessibility_event_recorder.h"
#include "content/browser/accessibility/accessibility_tree_formatter_blink.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/devtools_instrumentation.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/find_request_manager.h"
#include "content/browser/frame_host/cross_process_frame_connector.h"
#include "content/browser/frame_host/frame_tree_node.h"
#include "content/browser/frame_host/interstitial_page_impl.h"
#include "content/browser/frame_host/navigation_entry_impl.h"
#include "content/browser/frame_host/navigation_request.h"
#include "content/browser/frame_host/navigator_impl.h"
#include "content/browser/frame_host/render_frame_host_impl.h"
#include "content/browser/frame_host/render_frame_proxy_host.h"
#include "content/browser/gpu/gpu_data_manager_impl.h"
#include "content/browser/manifest/manifest_manager_host.h"
#include "content/browser/media/audio_stream_broker.h"
#include "content/browser/media/audio_stream_monitor.h"
#include "content/browser/media/capture/web_contents_audio_muter.h"
#include "content/browser/media/media_web_contents_observer.h"
#include "content/browser/media/session/media_session_impl.h"
#include "content/browser/plugin_content_origin_whitelist.h"
#include "content/browser/renderer_host/frame_token_message_queue.h"
#include "content/browser/renderer_host/render_process_host_impl.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/screen_orientation/screen_orientation_provider.h"
#include "content/browser/site_instance_impl.h"
#include "content/browser/web_contents/javascript_dialog_navigation_deferrer.h"
#include "content/browser/web_contents/web_contents_view_child_frame.h"
#include "content/browser/web_contents/web_contents_view_guest.h"
#include "content/browser/webui/web_ui_controller_factory_registry.h"
#include "content/browser/webui/web_ui_impl.h"
#include "content/common/browser_plugin/browser_plugin_constants.h"
#include "content/common/browser_plugin/browser_plugin_messages.h"
#include "content/common/drag_messages.h"
#include "content/common/frame_messages.h"
#include "content/common/input_messages.h"
#include "content/common/page_messages.h"
#include "content/common/page_state_serialization.h"
#include "content/common/render_message_filter.mojom.h"
#include "content/common/view_messages.h"
#include "content/common/widget_messages.h"
#include "content/public/browser/accessibility_tree_formatter.h"
#include "content/public/browser/ax_event_notification_details.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_plugin_guest_manager.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/content_browser_client.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/guest_mode.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/restore_type.h"
#include "content/public/browser/security_style_explanations.h"
#include "content/public/browser/ssl_status.h"
#include "content/public/browser/storage_partition.h"
#include "content/public/browser/system_connector.h"
#include "content/public/browser/web_contents_binding_set.h"
#include "content/public/browser/web_contents_delegate.h"
#include "content/public/browser/web_ui_controller.h"
#include "content/public/common/bindings_policy.h"
#include "content/public/common/child_process_host.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/content_features.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/page_state.h"
#include "content/public/common/referrer_type_converters.h"
#include "content/public/common/result_codes.h"
#include "content/public/common/url_utils.h"
#include "content/public/common/use_zoom_for_dsf_policy.h"
#include "content/public/common/web_preferences.h"
#include "media/base/user_input_monitor.h"
#include "net/base/url_util.h"
#include "net/http/http_cache.h"
#include "net/http/http_transaction_factory.h"
#include "net/traffic_annotation/network_traffic_annotation.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_getter.h"
#include "ppapi/buildflags/buildflags.h"
#include "services/device/public/mojom/constants.mojom.h"
#include "services/metrics/public/cpp/ukm_recorder.h"
#include "services/network/public/cpp/features.h"
#include "services/service_manager/public/cpp/connector.h"
#include "services/service_manager/public/cpp/interface_provider.h"
#include "third_party/blink/public/common/associated_interfaces/associated_interface_provider.h"
#include "third_party/blink/public/common/frame/sandbox_flags.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/security/security_style.h"
#include "third_party/blink/public/mojom/frame/fullscreen.mojom.h"
#include "third_party/blink/public/mojom/loader/pause_subresource_loading_handle.mojom.h"
#include "third_party/blink/public/mojom/mediastream/media_stream.mojom-shared.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/accessibility/ax_tree_combiner.h"
#include "ui/base/layout.h"
#include "ui/events/base_event_utils.h"
#include "ui/events/blink/web_input_event_traits.h"
#include "ui/gl/gl_switches.h"
#if defined(OS_WIN)
#include "content/browser/renderer_host/dip_util.h"
#include "ui/gfx/geometry/dip_util.h"
#endif
#if defined(OS_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"
#else // !OS_ANDROID
#include "content/browser/host_zoom_map_impl.h"
#endif // OS_ANDROID
#if BUILDFLAG(ENABLE_PLUGINS)
#include "content/browser/media/session/pepper_playback_observer.h"
#endif
namespace content {
using AccessibilityEventCallback =
base::RepeatingCallback<void(const std::string&)>;
namespace {
const int kMinimumDelayBetweenLoadingUpdatesMS = 100;
const char kDotGoogleDotCom[] = ".google.com";
base::LazyInstance<std::vector<
WebContentsImpl::FriendWrapper::CreatedCallback>>::DestructorAtExit
g_created_callbacks = LAZY_INSTANCE_INITIALIZER;
bool HasMatchingProcess(FrameTree* tree, int render_process_id) {
for (FrameTreeNode* node : tree->Nodes()) {
if (node->current_frame_host()->GetProcess()->GetID() == render_process_id)
return true;
}
return false;
}
bool HasMatchingWidgetHost(FrameTree* tree, RenderWidgetHost* 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->Nodes()) {
if (node->current_frame_host()->GetRenderWidgetHost() == host)
return true;
}
return false;
}
void UpdateAccessibilityModeOnFrame(RenderFrameHost* frame_host) {
static_cast<RenderFrameHostImpl*>(frame_host)->UpdateAccessibilityMode();
}
void ResetAccessibility(RenderFrameHost* rfh) {
static_cast<RenderFrameHostImpl*>(rfh)->AccessibilityReset();
}
// Helper for GetInnerWebContents().
bool GetInnerWebContentsHelper(std::vector<WebContents*>* all_guest_contents,
WebContents* guest_contents) {
auto* web_contents_impl = static_cast<WebContentsImpl*>(guest_contents);
if (web_contents_impl->GetBrowserPluginGuest()->attached() &&
!GuestMode::IsCrossProcessFrameGuest(web_contents_impl)) {
all_guest_contents->push_back(web_contents_impl);
}
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::kMouseDown ||
type == blink::WebInputEvent::kGestureScrollBegin ||
type == blink::WebInputEvent::kTouchStart ||
type == blink::WebInputEvent::kRawKeyDown;
}
// Ensures that OnDialogClosed is only called once.
class CloseDialogCallbackWrapper
: public base::RefCountedThreadSafe<CloseDialogCallbackWrapper> {
public:
using CloseCallback =
base::OnceCallback<void(bool, bool, const base::string16&)>;
explicit CloseDialogCallbackWrapper(CloseCallback callback)
: callback_(std::move(callback)) {}
void Run(bool dialog_was_suppressed,
bool success,
const base::string16& user_input) {
if (callback_.is_null())
return;
std::move(callback_).Run(dialog_was_suppressed, success, user_input);
}
private:
friend class base::RefCountedThreadSafe<CloseDialogCallbackWrapper>;
~CloseDialogCallbackWrapper() {}
CloseCallback callback_;
};
bool FrameCompareDepth(RenderFrameHostImpl* a, RenderFrameHostImpl* b) {
return a->frame_tree_node()->depth() < b->frame_tree_node()->depth();
}
bool AreValidRegisterProtocolHandlerArguments(const std::string& protocol,
const GURL& url,
const url::Origin& origin) {
ChildProcessSecurityPolicyImpl* policy =
ChildProcessSecurityPolicyImpl::GetInstance();
if (policy->IsPseudoScheme(protocol))
return false;
url::Origin url_origin = url::Origin::Create(url);
if (url_origin.opaque())
return false;
if (!url_origin.IsSameOriginWith(origin))
return false;
return true;
}
void RecordMaxFrameCountUMA(size_t max_frame_count) {
UMA_HISTOGRAM_COUNTS_10000("Navigation.MainFrame.MaxFrameCount",
max_frame_count);
}
} // namespace
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) {
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 (auto it = session_storage_namespace_map.begin();
it != session_storage_namespace_map.end(); ++it) {
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);
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) {
if (!rvh)
return nullptr;
return rvh->GetDelegate()->GetAsWebContents();
}
WebContents* WebContents::FromRenderFrameHost(RenderFrameHost* rfh) {
if (!rfh)
return nullptr;
return static_cast<RenderFrameHostImpl*>(rfh)->delegate()->GetAsWebContents();
}
WebContents* WebContents::FromFrameTreeNodeId(int 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);
}
void WebContents::SetScreenOrientationDelegate(
ScreenOrientationDelegate* delegate) {
ScreenOrientationProvider::SetDelegate(delegate);
}
// WebContentsImpl::DestructionObserver ----------------------------------------
class WebContentsImpl::DestructionObserver : public WebContentsObserver {
public:
DestructionObserver(WebContentsImpl* owner, WebContents* watched_contents)
: WebContentsObserver(watched_contents),
owner_(owner) {
}
// WebContentsObserver:
void WebContentsDestroyed() override {
owner_->OnWebContentsDestroyed(
static_cast<WebContentsImpl*>(web_contents()));
}
private:
WebContentsImpl* owner_;
DISALLOW_COPY_AND_ASSIGN(DestructionObserver);
};
// WebContentsImpl::ColorChooser ----------------------------------------------
class WebContentsImpl::ColorChooser : public blink::mojom::ColorChooser {
public:
ColorChooser(content::ColorChooser* chooser,
mojo::PendingReceiver<blink::mojom::ColorChooser> receiver,
mojo::PendingRemote<blink::mojom::ColorChooserClient> client)
: chooser_(chooser),
receiver_(this, std::move(receiver)),
client_(std::move(client)) {
receiver_.set_disconnect_handler(
base::BindOnce([](content::ColorChooser* chooser) { chooser->End(); },
base::Unretained(chooser)));
}
~ColorChooser() override { chooser_->End(); }
void SetSelectedColor(SkColor color) override {
chooser_->SetSelectedColor(color);
}
void DidChooseColorInColorChooser(SkColor color) {
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_;
};
// 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_web_contents_(current_web_contents) {}
WebContentsImpl::WebContentsTreeNode::~WebContentsTreeNode() {}
std::unique_ptr<WebContents>
WebContentsImpl::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) {
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.focused_web_contents_ = nullptr;
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);
}
std::unique_ptr<WebContents>
WebContentsImpl::WebContentsTreeNode::DetachInnerWebContents(
WebContentsImpl* inner_web_contents) {
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();
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) {
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::SetFocusedWebContents(
WebContentsImpl* web_contents) {
DCHECK(!outer_web_contents())
<< "Only the outermost WebContents tracks focus.";
focused_web_contents_ = web_contents;
}
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;
}
// WebContentsImpl -------------------------------------------------------------
WebContentsImpl::WebContentsImpl(BrowserContext* browser_context)
: delegate_(nullptr),
controller_(this, browser_context),
render_view_host_delegate_view_(nullptr),
created_with_opener_(false),
node_(this),
frame_tree_(new NavigatorImpl(&controller_, this),
this,
this,
this,
this),
is_load_to_different_document_(false),
crashed_status_(base::TERMINATION_STATUS_STILL_RUNNING),
crashed_error_code_(0),
waiting_for_response_(false),
load_state_(net::LOAD_STATE_IDLE, base::string16()),
upload_size_(0),
upload_position_(0),
is_resume_pending_(false),
interstitial_page_(nullptr),
has_accessed_initial_document_(false),
capturer_count_(0),
is_being_destroyed_(false),
is_notifying_observers_(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),
fullscreen_widget_process_id_(ChildProcessHost::kInvalidUniqueID),
fullscreen_widget_routing_id_(MSG_ROUTING_NONE),
fullscreen_widget_had_focus_at_shutdown_(false),
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)),
#if !defined(OS_ANDROID)
page_scale_factor_is_one_(true),
#endif // !defined(OS_ANDROID)
is_overlay_content_(false),
showing_context_menu_(false),
text_autosizer_page_info_({0, 0, 1.f}),
had_inner_webcontents_(false) {
frame_tree_.SetFrameRemoveListener(
base::Bind(&WebContentsImpl::OnFrameRemoved,
base::Unretained(this)));
#if BUILDFLAG(ENABLE_PLUGINS)
pepper_playback_observer_.reset(new PepperPlaybackObserver(this));
#endif
#if defined(OS_ANDROID)
display_cutout_host_impl_ = std::make_unique<DisplayCutoutHostImpl>(this);
#endif
binders_.Add(base::BindRepeating(
&WebContentsImpl::OnColorChooserFactoryRequest, base::Unretained(this)));
}
WebContentsImpl::~WebContentsImpl() {
// Imperfect sanity check against double free, given some crashes unexpectedly
// observed in the wild.
CHECK(!is_being_destroyed_);
// 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(!is_notifying_observers_);
rwh_input_event_router_.reset();
for (auto& entry : binding_sets_)
entry.second->CloseAllBindings();
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();
for (FrameTreeNode* node : frame_tree_.Nodes()) {
// Delete all RFHs pending shutdown, which will lead the corresponding RVHs
// to be shutdown and be deleted as well.
node->render_manager()->ClearRFHsPendingShutdown();
node->render_manager()->ClearWebUIInstances();
}
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);
}
color_chooser_.reset();
find_request_manager_.reset();
NotifyDisconnected();
// Notify any observer that have a reference on this WebContents.
NotificationService::current()->Notify(
NOTIFICATION_WEB_CONTENTS_DESTROYED,
Source<WebContents>(this),
NotificationService::NoDetails());
// Destroy all subframes now. This notifies observers.
GetMainFrame()->ResetChildren();
GetRenderManager()->ResetProxyHosts();
// Manually call the observer methods for the root frame tree node. It is
// necessary to manually delete all objects tracking navigations
// (NavigationHandle, NavigationRequest) for observers to be properly
// notified of these navigations stopping before the WebContents is
// destroyed.
RenderFrameHostManager* root = GetRenderManager();
GetController().GetBackForwardCache().Shutdown();
root->current_frame_host()->SetRenderFrameCreated(false);
root->current_frame_host()->ResetNavigationRequests();
// Do not update state as the WebContents is being destroyed.
frame_tree_.root()->ResetNavigationRequest(true);
if (root->speculative_frame_host()) {
root->speculative_frame_host()->DeleteRenderFrame(
FrameDeleteIntention::kSpeculativeMainFrameForShutdown);
root->speculative_frame_host()->SetRenderFrameCreated(false);
root->speculative_frame_host()->ResetNavigationRequests();
}
#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;
for (auto& observer : observers_)
observer.OnAudioStateChanged(false);
if (GetOuterWebContents())
GetOuterWebContents()->OnAudioStateChanged();
}
for (auto& observer : observers_)
observer.FrameDeleted(root->current_frame_host());
for (auto& observer : observers_)
observer.RenderViewDeleted(root->current_host());
#if defined(OS_ANDROID)
// For simplicity, destroy the Java WebContents before we notify of the
// destruction of the WebContents.
ClearWebContentsAndroid();
#endif
for (auto& observer : observers_)
observer.WebContentsDestroyed();
if (display_cutout_host_impl_)
display_cutout_host_impl_->WebContentsDestroyed();
for (auto& observer : observers_)
observer.ResetWebContents();
SetDelegate(nullptr);
}
std::unique_ptr<WebContentsImpl> WebContentsImpl::CreateWithOpener(
const WebContents::CreateParams& params,
RenderFrameHostImpl* opener_rfh) {
TRACE_EVENT0("browser", "WebContentsImpl::CreateWithOpener");
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/#attr-iframe-sandbox.
FrameTreeNode* new_root = new_contents->GetFrameTree()->root();
if (opener) {
blink::WebSandboxFlags opener_flags = opener_rfh->active_sandbox_flags();
const blink::WebSandboxFlags inherit_flag =
blink::WebSandboxFlags::kPropagatesToAuxiliaryBrowsingContexts;
bool sandbox_propagates_to_auxilary_context =
(opener_flags & inherit_flag) == inherit_flag;
if (sandbox_propagates_to_auxilary_context)
new_root->SetPendingFramePolicy({opener_flags, {}});
if (opener_flags == blink::WebSandboxFlags::kNone ||
sandbox_propagates_to_auxilary_context) {
// TODO(ekaramad, iclelland): Do not propagate feature policies from non-
// sandboxed disowned openers (rel=noopener).
// If the current page is not sandboxed, or if the sandbox is to propagate
// to the popups then opener's feature policy will apply to the new popup
// as well.
new_root->SetOpenerFeaturePolicyState(
opener_rfh->feature_policy()->GetFeatureState());
}
}
// 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);
new_root->CommitPendingFramePolicy();
// This may be true even when opener is null, such as when opening blocked
// popups.
if (params.created_with_opener)
new_contents->created_with_opener_ = 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);
if (outer_web_contents)
outer_web_contents->InnerWebContentsCreated(new_contents.get());
return new_contents;
}
// static
std::vector<WebContentsImpl*> 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->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) {
return static_cast<WebContentsImpl*>(
WebContents::FromRenderFrameHost(frame_tree_node->current_frame_host()));
}
// static
WebContents* WebContentsImpl::FromRenderFrameHostID(int render_process_host_id,
int render_frame_host_id) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI) ||
!BrowserThread::IsThreadInitialized(BrowserThread::UI));
RenderFrameHost* render_frame_host =
RenderFrameHost::FromID(render_process_host_id, render_frame_host_id);
if (!render_frame_host)
return nullptr;
return WebContents::FromRenderFrameHost(render_frame_host);
}
// static
WebContentsImpl* WebContentsImpl::FromOuterFrameTreeNode(
const FrameTreeNode* frame_tree_node) {
return WebContentsImpl::FromFrameTreeNode(frame_tree_node)
->node_.GetInnerWebContentsInFrame(frame_tree_node);
}
RenderFrameHostManager* WebContentsImpl::GetRenderManagerForTesting() {
return GetRenderManager();
}
bool WebContentsImpl::OnMessageReceived(RenderViewHostImpl* render_view_host,
const IPC::Message& message) {
for (auto& observer : observers_) {
// TODO(nick, creis): https://crbug.com/758026: Replace all uses of this
// variant of OnMessageReceived with the version that takes a
// RenderFrameHost, and then delete it.
if (observer.OnMessageReceived(message))
return true;
}
bool handled = true;
IPC_BEGIN_MESSAGE_MAP_WITH_PARAM(WebContentsImpl, message, render_view_host)
IPC_MESSAGE_HANDLER(ViewHostMsg_PageScaleFactorChanged,
OnPageScaleFactorChanged)
IPC_MESSAGE_HANDLER(
ViewHostMsg_NotifyTextAutosizerPageInfoChangedInLocalMainFrame,
OnTextAutosizerPageInfoChanged)
#if BUILDFLAG(ENABLE_PLUGINS)
IPC_MESSAGE_HANDLER(ViewHostMsg_RequestPpapiBrokerPermission,
OnRequestPpapiBrokerPermission)
#endif
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
bool WebContentsImpl::OnMessageReceived(RenderFrameHostImpl* render_frame_host,
const IPC::Message& message) {
{
WebUIImpl* web_ui = render_frame_host->web_ui();
if (web_ui && web_ui->OnMessageReceived(message, render_frame_host))
return true;
}
for (auto& observer : observers_) {
if (observer.OnMessageReceived(message, render_frame_host))
return true;
}
bool handled = true;
IPC_BEGIN_MESSAGE_MAP_WITH_PARAM(WebContentsImpl, message, render_frame_host)
IPC_MESSAGE_HANDLER(FrameHostMsg_DomOperationResponse,
OnDomOperationResponse)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidFinishLoad, OnDidFinishLoad)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidLoadResourceFromMemoryCache,
OnDidLoadResourceFromMemoryCache)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidRunInsecureContent,
OnDidRunInsecureContent)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidDisplayContentWithCertificateErrors,
OnDidDisplayContentWithCertificateErrors)
IPC_MESSAGE_HANDLER(FrameHostMsg_DidRunContentWithCertificateErrors,
OnDidRunContentWithCertificateErrors)
IPC_MESSAGE_HANDLER(FrameHostMsg_GoToEntryAtOffset, OnGoToEntryAtOffset)
IPC_MESSAGE_HANDLER(FrameHostMsg_UpdatePageImportanceSignals,
OnUpdatePageImportanceSignals)
IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateFaviconURL, OnUpdateFaviconURL)
#if BUILDFLAG(ENABLE_PLUGINS)
IPC_MESSAGE_HANDLER(FrameHostMsg_PepperInstanceCreated,
OnPepperInstanceCreated)
IPC_MESSAGE_HANDLER(FrameHostMsg_PepperInstanceDeleted,
OnPepperInstanceDeleted)
IPC_MESSAGE_HANDLER(FrameHostMsg_PepperPluginHung, OnPepperPluginHung)
IPC_MESSAGE_HANDLER(FrameHostMsg_PepperStartsPlayback,
OnPepperStartsPlayback)
IPC_MESSAGE_HANDLER(FrameHostMsg_PepperStopsPlayback,
OnPepperStopsPlayback)
IPC_MESSAGE_HANDLER(FrameHostMsg_PluginCrashed, OnPluginCrashed)
IPC_MESSAGE_HANDLER_GENERIC(BrowserPluginHostMsg_Attach,
OnBrowserPluginMessage(render_frame_host,
message))
#endif
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
NavigationControllerImpl& WebContentsImpl::GetController() {
return controller_;
}
BrowserContext* WebContentsImpl::GetBrowserContext() {
return controller_.GetBrowserContext();
}
const GURL& WebContentsImpl::GetURL() {
return GetVisibleURL();
}
const GURL& WebContentsImpl::GetVisibleURL() {
// We may not have a navigation entry yet.
NavigationEntry* entry = controller_.GetVisibleEntry();
return entry ? entry->GetVirtualURL() : GURL::EmptyGURL();
}
const GURL& WebContentsImpl::GetLastCommittedURL() {
// We may not have a navigation entry yet.
NavigationEntry* entry = controller_.GetLastCommittedEntry();
return entry ? entry->GetVirtualURL() : GURL::EmptyGURL();
}
WebContentsDelegate* WebContentsImpl::GetDelegate() {
return delegate_;
}
void WebContentsImpl::SetDelegate(WebContentsDelegate* delegate) {
// TODO(cbentzel): remove this debugging code?
if (delegate == delegate_)
return;
if (delegate_)
delegate_->Detach(this);
delegate_ = delegate;
if (delegate_) {
delegate_->Attach(this);
// Ensure the visible RVH reflects the new delegate's preferences.
if (view_)
view_->SetOverscrollControllerEnabled(CanOverscrollContent());
if (GetRenderViewHost())
RenderFrameDevToolsAgentHost::WebContentsCreated(this);
}
}
RenderFrameHostImpl* WebContentsImpl::GetMainFrame() {
return frame_tree_.root()->current_frame_host();
}
RenderFrameHostImpl* WebContentsImpl::GetFocusedFrame() {
FrameTreeNode* focused_node = frame_tree_.GetFocusedFrame();
if (!focused_node)
return nullptr;
return focused_node->current_frame_host();
}
RenderFrameHostImpl* WebContentsImpl::FindFrameByFrameTreeNodeId(
int frame_tree_node_id,
int process_id) {
FrameTreeNode* frame = frame_tree_.FindByID(frame_tree_node_id);
// Sanity check that this is in the caller's expected process. Otherwise a
// recent cross-process navigation may have led to a privilege change that the
// caller is not expecting.
if (!frame ||
frame->current_frame_host()->GetProcess()->GetID() != process_id)
return nullptr;
return frame->current_frame_host();
}
RenderFrameHostImpl* WebContentsImpl::UnsafeFindFrameByFrameTreeNodeId(
int frame_tree_node_id) {
// Beware using this! The RenderFrameHost may have changed since the caller
// obtained frame_tree_node_id.
FrameTreeNode* frame = frame_tree_.FindByID(frame_tree_node_id);
return frame ? frame->current_frame_host() : nullptr;
}
void WebContentsImpl::ForEachFrame(
const base::RepeatingCallback<void(RenderFrameHost*)>& on_frame) {
for (FrameTreeNode* node : frame_tree_.Nodes()) {
on_frame.Run(node->current_frame_host());
}
}
std::vector<RenderFrameHost*> WebContentsImpl::GetAllFrames() {
std::vector<RenderFrameHost*> frame_hosts;
for (FrameTreeNode* node : frame_tree_.Nodes())
frame_hosts.push_back(node->current_frame_host());
return frame_hosts;
}
int WebContentsImpl::SendToAllFrames(IPC::Message* message) {
int number_of_messages = 0;
for (RenderFrameHost* rfh : GetAllFrames()) {
if (!rfh->IsRenderFrameLive())
continue;
++number_of_messages;
IPC::Message* message_copy = new IPC::Message(*message);
message_copy->set_routing_id(rfh->GetRoutingID());
rfh->Send(message_copy);
}
delete message;
return number_of_messages;
}
void WebContentsImpl::SendPageMessage(IPC::Message* msg) {
frame_tree_.root()->render_manager()->SendPageMessage(msg, nullptr);
}
RenderViewHostImpl* WebContentsImpl::GetRenderViewHost() {
return GetRenderManager()->current_host();
}
void WebContentsImpl::CancelActiveAndPendingDialogs() {
if (dialog_manager_) {
dialog_manager_->CancelDialogs(this, /*reset_state=*/false);
}
if (browser_plugin_embedder_)
browser_plugin_embedder_->CancelGuestDialogs();
}
void WebContentsImpl::ClosePage() {
GetRenderViewHost()->ClosePage();
}
RenderWidgetHostView* WebContentsImpl::GetRenderWidgetHostView() {
return GetRenderManager()->GetRenderWidgetHostView();
}
RenderWidgetHostView* WebContentsImpl::GetTopLevelRenderWidgetHostView() {
if (GetOuterWebContents())
return GetOuterWebContents()->GetTopLevelRenderWidgetHostView();
return GetRenderManager()->GetRenderWidgetHostView();
}
RenderWidgetHostView* WebContentsImpl::GetFullscreenRenderWidgetHostView() {
if (auto* widget_host = GetFullscreenRenderWidgetHost())
return widget_host->GetView();
return nullptr;
}
WebContentsView* WebContentsImpl::GetView() const {
return view_.get();
}
void WebContentsImpl::OnScreenOrientationChange() {
DCHECK(screen_orientation_provider_);
screen_orientation_provider_->OnOrientationChange();
}
base::Optional<SkColor> WebContentsImpl::GetThemeColor() {
return GetRenderViewHost()->theme_color();
}
void WebContentsImpl::SetAccessibilityMode(ui::AXMode mode) {
if (mode == accessibility_mode_)
return;
// Don't allow accessibility to be enabled for WebContents that are never
// visible, like background pages.
if (IsNeverVisible())
return;
accessibility_mode_ = mode;
for (FrameTreeNode* node : frame_tree_.Nodes()) {
UpdateAccessibilityModeOnFrame(node->current_frame_host());
// Also update accessibility mode on the speculative RenderFrameHost for
// this FrameTreeNode, if one exists.
RenderFrameHost* speculative_frame_host =
node->render_manager()->speculative_frame_host();
if (speculative_frame_host)
UpdateAccessibilityModeOnFrame(speculative_frame_host);
}
}
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 WebContentsImpl::AXTreeSnapshotCombiner
: public base::RefCounted<AXTreeSnapshotCombiner> {
public:
explicit AXTreeSnapshotCombiner(AXTreeSnapshotCallback callback)
: callback_(std::move(callback)) {}
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);
}
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_;
AXTreeSnapshotCallback callback_;
};
void WebContentsImpl::RequestAXTreeSnapshot(AXTreeSnapshotCallback callback,
ui::AXMode ax_mode) {
// 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|.
FrameTreeNode* root_node = frame_tree_.root();
auto combiner =
base::MakeRefCounted<AXTreeSnapshotCombiner>(std::move(callback));
RecursiveRequestAXTreeSnapshotOnFrame(root_node, combiner.get(), ax_mode);
}
void WebContentsImpl::RecursiveRequestAXTreeSnapshotOnFrame(
FrameTreeNode* root_node,
AXTreeSnapshotCombiner* combiner,
ui::AXMode ax_mode) {
for (FrameTreeNode* frame_tree_node : frame_tree_.Nodes()) {
WebContentsImpl* inner_contents =
node_.GetInnerWebContentsInFrame(frame_tree_node);
if (inner_contents) {
inner_contents->RecursiveRequestAXTreeSnapshotOnFrame(root_node, combiner,
ax_mode);
} else {
bool is_root = frame_tree_node == root_node;
frame_tree_node->current_frame_host()->RequestAXTreeSnapshot(
combiner->AddFrame(is_root), ax_mode);
}
}
}
void WebContentsImpl::NotifyViewportFitChanged(
blink::mojom::ViewportFit value) {
for (auto& observer : observers_)
observer.ViewportFitChanged(value);
}
FindRequestManager* WebContentsImpl::GetFindRequestManagerForTesting() {
return GetFindRequestManager();
}
#if !defined(OS_ANDROID)
void WebContentsImpl::UpdateZoom() {
RenderWidgetHostImpl* rwh = GetRenderViewHost()->GetWidget();
if (rwh->GetView())
rwh->SynchronizeVisualProperties();
}
void WebContentsImpl::UpdateZoomIfNecessary(const std::string& scheme,
const std::string& 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();
}
#endif // !defined(OS_ANDROID)
base::Closure WebContentsImpl::AddBindingSet(
const std::string& interface_name,
WebContentsBindingSet* binding_set) {
auto result =
binding_sets_.insert(std::make_pair(interface_name, binding_set));
DCHECK(result.second);
return base::Bind(&WebContentsImpl::RemoveBindingSet,
weak_factory_.GetWeakPtr(), interface_name);
}
WebContentsBindingSet* WebContentsImpl::GetBindingSet(
const std::string& interface_name) {
auto it = binding_sets_.find(interface_name);
if (it == binding_sets_.end())
return nullptr;
return it->second;
}
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::NotifyManifestUrlChanged(
const base::Optional<GURL>& manifest_url) {
for (auto& observer : observers_)
observer.DidUpdateWebManifestURL(manifest_url);
}
WebUI* WebContentsImpl::GetWebUI() {
WebUI* committed_web_ui = GetCommittedWebUI();
if (committed_web_ui)
return committed_web_ui;
if (GetRenderManager()->speculative_frame_host())
return GetRenderManager()->speculative_frame_host()->web_ui();
return nullptr;
}
WebUI* WebContentsImpl::GetCommittedWebUI() {
return frame_tree_.root()->current_frame_host()->web_ui();
}
void WebContentsImpl::SetUserAgentOverride(const std::string& override,
bool override_in_new_tabs) {
if (GetUserAgentOverride() == override)
return;
should_override_user_agent_in_new_tabs_ = override_in_new_tabs;
renderer_preferences_.user_agent_override = 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.
NavigationEntry* entry = controller_.GetVisibleEntry();
if (IsLoading() && entry != nullptr && entry->GetIsOverridingUserAgent())
controller_.Reload(ReloadType::BYPASSING_CACHE, true);
for (auto& observer : observers_)
observer.UserAgentOverrideSet(override);
}
const std::string& WebContentsImpl::GetUserAgentOverride() {
return renderer_preferences_.user_agent_override;
}
bool WebContentsImpl::ShouldOverrideUserAgentInNewTabs() {
return should_override_user_agent_in_new_tabs_;
}
void 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);
if (need_reset) {
for (RenderFrameHost* rfh : GetAllFrames())
ResetAccessibility(rfh);
}
}
bool WebContentsImpl::IsWebContentsOnlyAccessibilityModeForTesting() {
return accessibility_mode_ == ui::kAXModeWebContentsOnly;
}
bool WebContentsImpl::IsFullAccessibilityModeForTesting() {
return accessibility_mode_ == ui::kAXModeComplete;
}
const PageImportanceSignals& WebContentsImpl::GetPageImportanceSignals() {
return page_importance_signals_;
}
#if defined(OS_ANDROID)
void WebContentsImpl::SetDisplayCutoutSafeArea(gfx::Insets insets) {
if (display_cutout_host_impl_)
display_cutout_host_impl_->SetDisplayCutoutSafeArea(insets);
}
#endif
const base::string16& WebContentsImpl::GetTitle() {
// Transient entries take precedence. They are used for interstitial pages
// that are shown on top of existing pages.
NavigationEntry* entry = controller_.GetTransientEntry();
if (entry) {
return entry->GetTitleForDisplay();
}
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.
entry = controller_.GetVisibleEntry();
if (!(entry && entry->IsViewSourceMode())) {
// Give the Web UI the chance to override our title.
const base::string16& title = our_web_ui->GetOverriddenTitle();
if (!title.empty())
return title;
}
}
// 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.
entry = controller_.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 (controller_.IsInitialNavigation() &&
((controller_.GetVisibleEntry() &&
!controller_.GetVisibleEntry()->GetTitle().empty()) ||
controller_.GetPendingEntryIndex() != -1)) {
entry = controller_.GetVisibleEntry();
}
if (entry) {
return entry->GetTitleForDisplay();
}
// |page_title_when_no_navigation_entry_| is finally used
// if no title cannot be retrieved.
return page_title_when_no_navigation_entry_;
}
SiteInstanceImpl* WebContentsImpl::GetSiteInstance() {
return GetRenderManager()->current_host()->GetSiteInstance();
}
bool WebContentsImpl::IsLoading() {
return frame_tree_.IsLoading() &&
!(ShowingInterstitialPage() && interstitial_page_->pause_throbber());
}
double WebContentsImpl::GetLoadProgress() {
return frame_tree_.load_progress();
}
bool WebContentsImpl::IsLoadingToDifferentDocument() {
return IsLoading() && is_load_to_different_document_;
}
bool WebContentsImpl::IsDocumentOnLoadCompletedInMainFrame() {
return GetRenderViewHost()->IsDocumentOnLoadCompletedInMainFrame();
}
bool WebContentsImpl::IsWaitingForResponse() {
NavigationRequest* ongoing_navigation_request =
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 base::string16& 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 GetMainFrame()->GetEncoding();
}
bool WebContentsImpl::WasDiscarded() {
return GetFrameTree()->root()->was_discarded();
}
void WebContentsImpl::SetWasDiscarded(bool was_discarded) {
GetFrameTree()->root()->set_was_discarded();
}
void WebContentsImpl::IncrementCapturerCount(const gfx::Size& capture_size) {
DCHECK(!is_being_destroyed_);
const bool was_captured = IsBeingCaptured();
++capturer_count_;
DVLOG(1) << "There are now " << capturer_count_
<< " capturing(s) of WebContentsImpl@" << this;
// 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 (!was_captured)
UpdateVisibilityAndNotifyPageAndView(GetVisibility());
}
void WebContentsImpl::DecrementCapturerCount() {
--capturer_count_;
DVLOG(1) << "There are now " << capturer_count_
<< " capturing(s) of WebContentsImpl@" << this;
DCHECK_LE(0, capturer_count_);
if (is_being_destroyed_)
return;
if (!IsBeingCaptured()) {
const gfx::Size old_size = preferred_size_for_capture_;
preferred_size_for_capture_ = gfx::Size();
OnPreferredSizeChanged(old_size);
UpdateVisibilityAndNotifyPageAndView(GetVisibility());
}
}
bool WebContentsImpl::IsBeingCaptured() {
return capturer_count_ > 0;
}
bool WebContentsImpl::IsAudioMuted() {
if (base::FeatureList::IsEnabled(features::kAudioServiceAudioStreams)) {
return audio_stream_factory_ && audio_stream_factory_->IsMuted();
}
return audio_muter_.get() && audio_muter_->is_muting();
}
void WebContentsImpl::SetAudioMuted(bool mute) {
DVLOG(1) << "SetAudioMuted(mute=" << mute << "), was " << IsAudioMuted()
<< " for WebContentsImpl@" << this;
if (mute == IsAudioMuted())
return;
if (base::FeatureList::IsEnabled(features::kAudioServiceAudioStreams)) {
GetAudioStreamFactory()->SetMuted(mute);
} else {
if (mute) {
if (!audio_muter_)
audio_muter_.reset(new WebContentsAudioMuter(this));
audio_muter_->StartMuting();
} else {
DCHECK(audio_muter_);
audio_muter_->StopMuting();
}
}
for (auto& observer : observers_)
observer.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::IsConnectedToSerialPort() {
return serial_active_frame_count_ > 0;
}
bool WebContentsImpl::IsConnectedToHidDevice() {
return hid_active_frame_count_ > 0;
}
bool WebContentsImpl::HasNativeFileSystemHandles() {
return native_file_system_handle_count_ > 0;
}
bool WebContentsImpl::HasNativeFileSystemDirectoryHandles() {
return !native_file_system_directory_handles_.empty();
}
std::vector<base::FilePath>
WebContentsImpl::GetNativeFileSystemDirectoryHandles() {
std::vector<base::FilePath> result;
result.reserve(native_file_system_directory_handles_.size());
for (auto const& entry : native_file_system_directory_handles_)
result.push_back(entry.first);
return result;
}
bool WebContentsImpl::HasWritableNativeFileSystemHandles() {
return native_file_system_writable_handle_count_ > 0;
}
bool WebContentsImpl::HasPictureInPictureVideo() {
return has_picture_in_picture_video_;
}
void WebContentsImpl::SetHasPictureInPictureVideo(
bool 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;
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
for (auto& observer : observers_)
observer.MediaPictureInPictureChanged(has_picture_in_picture_video_);
}
bool WebContentsImpl::IsCrashed() {
switch (crashed_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 defined(OS_CHROMEOS)
case base::TERMINATION_STATUS_PROCESS_WAS_KILLED_BY_OOM:
#endif
#if defined(OS_ANDROID)
case base::TERMINATION_STATUS_OOM_PROTECTED:
#endif
#if defined(OS_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::SetIsCrashed(base::TerminationStatus status,
int error_code) {
if (status == crashed_status_)
return;
crashed_status_ = status;
crashed_error_code_ = error_code;
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
}
base::TerminationStatus WebContentsImpl::GetCrashedStatus() {
return crashed_status_;
}
int WebContentsImpl::GetCrashedErrorCode() {
return crashed_error_code_;
}
bool WebContentsImpl::IsBeingDestroyed() {
return is_being_destroyed_;
}
void WebContentsImpl::NotifyNavigationStateChanged(
InvalidateTypes 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);
}
RenderFrameHostImpl* WebContentsImpl::GetFocusedFrameFromFocusedDelegate() {
FrameTreeNode* focused_node =
GetFocusedWebContents()->frame_tree_.GetFocusedFrame();
return focused_node ? focused_node->current_frame_host() : nullptr;
}
void WebContentsImpl::OnVerticalScrollDirectionChanged(
viz::VerticalScrollDirection scroll_direction) {
for (auto& observer : observers_)
observer.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.
bool is_currently_audible =
audio_stream_monitor_.IsCurrentlyAudible() ||
(browser_plugin_embedder_ &&
browser_plugin_embedder_->AreAnyGuestsCurrentlyAudible());
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_;
SendPageMessage(
new PageMsg_AudioStateChanged(MSG_ROUTING_NONE, 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();
for (auto& observer : observers_)
observer.OnAudioStateChanged(is_currently_audible_);
}
base::TimeTicks WebContentsImpl::GetLastActiveTime() {
return last_active_time_;
}
void WebContentsImpl::WasShown() {
UpdateVisibilityAndNotifyPageAndView(Visibility::VISIBLE);
}
void WebContentsImpl::WasHidden() {
UpdateVisibilityAndNotifyPageAndView(Visibility::HIDDEN);
}
bool WebContentsImpl::HasRecentInteractiveInputEvent() {
static constexpr base::TimeDelta kMaxInterval =
base::TimeDelta::FromSeconds(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) {
ignore_input_events_ = ignore_input_events;
}
#if defined(OS_ANDROID)
void WebContentsImpl::SetMainFrameImportance(
ChildProcessImportance importance) {
GetMainFrame()->GetRenderWidgetHost()->SetImportance(importance);
if (ShowingInterstitialPage()) {
static_cast<RenderFrameHostImpl*>(interstitial_page_->GetMainFrame())
->GetRenderWidgetHost()
->SetImportance(importance);
}
}
#endif
void WebContentsImpl::WasOccluded() {
UpdateVisibilityAndNotifyPageAndView(Visibility::OCCLUDED);
}
Visibility WebContentsImpl::GetVisibility() {
return visibility_;
}
// TODO(alexmos): rename to NeedToFireBeforeUnloadOrUnload().
bool WebContentsImpl::NeedToFireBeforeUnload() {
// TODO(creis): Should we fire even for interstitial pages?
if (ShowingInterstitialPage())
return false;
if (!WillNotifyDisconnection())
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 handlers.
for (FrameTreeNode* node : frame_tree_.Nodes()) {
RenderFrameHostImpl* rfh = node->current_frame_host();
// No need to run beforeunload/unload if the RenderFrame isn't live.
if (!rfh->IsRenderFrameLive())
continue;
if (rfh->GetSuddenTerminationDisablerState(blink::kBeforeUnloadHandler |
blink::kUnloadHandler)) {
return true;
}
}
return false;
}
void WebContentsImpl::DispatchBeforeUnload(bool auto_cancel) {
auto before_unload_type =
auto_cancel ? RenderFrameHostImpl::BeforeUnloadType::DISCARD
: RenderFrameHostImpl::BeforeUnloadType::TAB_CLOSE;
GetMainFrame()->DispatchBeforeUnload(before_unload_type, false);
}
void WebContentsImpl::AttachInnerWebContents(
std::unique_ptr<WebContents> inner_web_contents,
RenderFrameHost* render_frame_host) {
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(&frame_tree_,
render_frame_host_impl->frame_tree_node()->frame_tree());
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_render_manager->current_host();
auto* outer_render_manager =
render_frame_host_impl->frame_tree_node()->render_manager();
// When attaching a WebContents as an inner WebContents, we need to replace
// the Webcontents' view with a WebContentsViewChildFrame.
inner_web_contents_impl->view_.reset(new WebContentsViewChildFrame(
inner_web_contents_impl,
GetContentClient()->browser()->GetWebContentsViewDelegate(
inner_web_contents_impl),
&inner_web_contents_impl->render_view_host_delegate_view_));
// 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_render_view_host, nullptr);
inner_main_frame->Init();
if (!inner_render_manager->GetRenderWidgetHostView()) {
inner_web_contents_impl->CreateRenderWidgetHostViewForRenderManager(
inner_render_view_host);
}
// 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_render_manager->CreateOuterDelegateProxy(
render_frame_host_impl->GetSiteInstance());
// 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 (frame_tree_.GetFocusedFrame() ==
render_frame_host_impl->frame_tree_node()) {
inner_web_contents_impl->SetFocusedFrame(
inner_web_contents_impl->frame_tree_.root(),
render_frame_host_impl->GetSiteInstance());
}
outer_render_manager->set_attach_complete();
}
std::unique_ptr<WebContents> WebContentsImpl::DetachFromOuterWebContents() {
DCHECK(node_.outer_web_contents());
if (RenderWidgetHostViewBase* view =
static_cast<RenderWidgetHostViewBase*>(GetMainFrame()->GetView())) {
view->Destroy();
}
GetRenderManager()->DeleteOuterDelegateProxy(
node_.OuterContentsFrameTreeNode()
->current_frame_host()
->GetSiteInstance());
view_.reset(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_.SetFocusedWebContents(this);
CreateRenderWidgetHostViewForRenderManager(GetRenderViewHost());
return web_contents;
}
void WebContentsImpl::RecursivelyRegisterFrameSinkIds() {
auto* view = static_cast<RenderWidgetHostViewBase*>(
GetRenderManager()->GetRenderWidgetHostView());
DCHECK(view);
if (!view->IsRenderWidgetHostViewChildFrame())
return;
static_cast<RenderWidgetHostViewChildFrame*>(view)->RegisterFrameSinkId();
for (auto* inner_web_contents : node_.GetInnerWebContents()) {
static_cast<WebContentsImpl*>(inner_web_contents)
->RecursivelyRegisterFrameSinkIds();
}
}
void WebContentsImpl::ReattachToOuterWebContentsFrame() {
DCHECK(node_.outer_web_contents());
auto* render_manager = GetRenderManager();
auto* parent_frame =
node_.OuterContentsFrameTreeNode()->current_frame_host()->GetParent();
render_manager->SetRWHViewForInnerContents(
render_manager->GetRenderWidgetHostView());
RecursivelyRegisterFrameSinkIds();
// Set up the the guest's AX tree to point back at the embedder's AX tree.
GetMainFrame()->set_browser_plugin_embedder_ax_tree_id(
parent_frame->GetAXTreeID());
GetMainFrame()->UpdateAXTreeData();
}
void WebContentsImpl::DidChangeVisibleSecurityState() {
if (delegate_)
delegate_->VisibleSecurityStateChanged(this);
for (auto& observer : observers_)
observer.DidChangeVisibleSecurityState();
}
void WebContentsImpl::NotifyPreferencesChanged() {
std::set<RenderViewHost*> render_view_host_set;
for (FrameTreeNode* node : frame_tree_.Nodes()) {
render_view_host_set.insert(
node->current_frame_host()->GetRenderViewHost());
}
for (RenderViewHost* render_view_host : render_view_host_set)
render_view_host->OnWebkitPreferencesChanged();
}
void WebContentsImpl::SyncRendererPrefs() {
blink::mojom::RendererPreferences renderer_preferences =
GetRendererPrefs(GetBrowserContext());
RenderViewHostImpl::GetPlatformSpecificPrefs(&renderer_preferences);
SendPageMessage(
new PageMsg_SetRendererPrefs(MSG_ROUTING_NONE, renderer_preferences));
}
void WebContentsImpl::OnCookiesRead(const GURL& url,
const GURL& first_party_url,
const net::CookieList& cookie_list,
bool blocked_by_policy) {
for (auto& observer : observers_) {
observer.OnCookiesRead(url, first_party_url, cookie_list,
blocked_by_policy);
}
}
void WebContentsImpl::OnCookieChange(const GURL& url,
const GURL& first_party_url,
const net::CanonicalCookie& cookie,
bool blocked_by_policy) {
for (auto& observer : observers_) {
observer.OnCookieChange(url, first_party_url, cookie, blocked_by_policy);
}
}
void WebContentsImpl::Stop() {
for (FrameTreeNode* node : frame_tree_.Nodes())
node->StopLoading();
for (auto& observer : observers_)
observer.NavigationStopped();
}
void WebContentsImpl::SetPageFrozen(bool frozen) {
// A visible page is never frozen.
DCHECK_NE(Visibility::VISIBLE, GetVisibility());
SendPageMessage(new PageMsg_SetPageFrozen(MSG_ROUTING_NONE, frozen));
}
std::unique_ptr<WebContents> 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 = 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(&controller_, true);
for (auto& observer : observers_)
observer.DidCloneToNewWebContents(this, tc.get());
return tc;
}
void WebContentsImpl::Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) {
switch (type) {
case NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED: {
RenderWidgetHost* host = Source<RenderWidgetHost>(source).ptr();
RenderWidgetHostView* view = host->GetView();
if (view == GetFullscreenRenderWidgetHostView()) {
// We cannot just call view_->RestoreFocus() here. On some platforms,
// attempting to focus the currently-invisible WebContentsView will be
// flat-out ignored. Therefore, this boolean is used to track whether
// we will request focus after the fullscreen widget has been
// destroyed.
fullscreen_widget_had_focus_at_shutdown_ = (view && view->HasFocus());
} else {
for (auto i = pending_widget_views_.begin();
i != pending_widget_views_.end(); ++i) {
if (host->GetView() == i->second) {
pending_widget_views_.erase(i);
break;
}
}
}
break;
}
default:
NOTREACHED();
}
}
WebContents* WebContentsImpl::GetWebContents() {
return this;
}
void WebContentsImpl::Init(const WebContents::CreateParams& params) {
// 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;
if (!params.last_active_time.is_null())
last_active_time_ = params.last_active_time;
// The routing ids must either all be set or all be unset.
DCHECK((params.routing_id == MSG_ROUTING_NONE &&
params.main_frame_routing_id == MSG_ROUTING_NONE &&
params.main_frame_widget_routing_id == MSG_ROUTING_NONE) ||
(params.routing_id != MSG_ROUTING_NONE &&
params.main_frame_routing_id != MSG_ROUTING_NONE &&
params.main_frame_widget_routing_id != MSG_ROUTING_NONE));
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();
}
// A main RenderFrameHost always has a RenderWidgetHost, since it is always a
// local root by definition.
// TODO(avi): Once RenderViewHostImpl has-a RenderWidgetHostImpl, it will no
// longer be necessary to eagerly grab a routing ID for the view.
// https://crbug.com/545684
int32_t view_routing_id = params.routing_id;
int32_t main_frame_widget_routing_id = params.main_frame_widget_routing_id;
if (main_frame_widget_routing_id == MSG_ROUTING_NONE) {
view_routing_id = site_instance->GetProcess()->GetNextRoutingID();
main_frame_widget_routing_id =
site_instance->GetProcess()->GetNextRoutingID();
}
DCHECK_NE(view_routing_id, main_frame_widget_routing_id);
GetRenderManager()->Init(
site_instance.get(), view_routing_id, params.main_frame_routing_id,
main_frame_widget_routing_id, params.renderer_initiated_creation);
// blink::FrameTree::setName always keeps |unique_name| empty in case of a
// main frame - let's do the same thing here.
std::string unique_name;
frame_tree_.root()->SetFrameName(params.main_frame_name, unique_name);
WebContentsViewDelegate* delegate =
GetContentClient()->browser()->GetWebContentsViewDelegate(this);
if (GuestMode::IsCrossProcessFrameGuest(this)) {
view_.reset(new WebContentsViewChildFrame(
this, delegate, &render_view_host_delegate_view_));
} else {
view_.reset(CreateWebContentsView(this, delegate,
&render_view_host_delegate_view_));
if (browser_plugin_guest_) {
view_ = std::make_unique<WebContentsViewGuest>(
this, browser_plugin_guest_.get(), std::move(view_),
&render_view_host_delegate_view_);
}
}
CHECK(render_view_host_delegate_view_);
CHECK(view_.get());
view_->CreateView(params.context);
#if BUILDFLAG(ENABLE_PLUGINS)
plugin_content_origin_whitelist_.reset(
new PluginContentOriginWhitelist(this));
#endif
registrar_.Add(this,
NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED,
NotificationService::AllBrowserContextsAndSources());
screen_orientation_provider_.reset(new ScreenOrientationProvider(this));
manifest_manager_host_.reset(new ManifestManagerHost(this));
#if defined(OS_ANDROID)
DateTimeChooserAndroid::CreateForWebContents(this);
#endif
// BrowserPluginGuest::Init needs to be called after this WebContents has
// a RenderWidgetHostViewGuest. That is, |view_->CreateView| above.
if (browser_plugin_guest_)
browser_plugin_guest_->Init();
for (size_t i = 0; i < g_created_callbacks.Get().size(); i++)
g_created_callbacks.Get().at(i).Run(this);
// If the WebContents creation was renderer-initiated, it means that the
// corresponding RenderView and main RenderFrame have already been created.
// Ensure observers are notified about this.
if (params.renderer_initiated_creation) {
GetRenderViewHost()->GetWidget()->set_renderer_initialized(true);
GetRenderViewHost()->DispatchRenderViewCreated();
GetRenderManager()->current_frame_host()->SetRenderFrameCreated(true);
}
// Create the renderer process in advance if requested.
if (params.desired_renderer_state ==
CreateParams::kInitializeAndWarmupRendererProcess) {
if (!GetRenderManager()->current_frame_host()->IsRenderFrameLive()) {
GetRenderManager()->InitRenderView(GetRenderViewHost(), nullptr);
}
}
// 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(), true);
// For WebContents that are never shown, do critical initialization here which
// would normally only happen when the WebContents is shown.
if (params.is_never_visible) {
// This has just been created so there can only be one frame. Thus it is
// safe to initialize the root.
GetMainFrame()->Init();
}
}
void WebContentsImpl::OnWebContentsDestroyed(WebContentsImpl* web_contents) {
RemoveDestructionObserver(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.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.release();
pending_contents_.erase(iter);
return;
}
NOTREACHED();
}
void WebContentsImpl::AddDestructionObserver(WebContentsImpl* web_contents) {
if (!base::Contains(destruction_observers_, web_contents)) {
destruction_observers_[web_contents] =
std::make_unique<DestructionObserver>(this, web_contents);
}
}
void WebContentsImpl::RemoveDestructionObserver(WebContentsImpl* web_contents) {
destruction_observers_.erase(web_contents);
}
void WebContentsImpl::AddObserver(WebContentsObserver* observer) {
observers_.AddObserver(observer);
}
void WebContentsImpl::RemoveObserver(WebContentsObserver* observer) {
observers_.RemoveObserver(observer);
}
std::set<RenderWidgetHostView*>
WebContentsImpl::GetRenderWidgetHostViewsInTree() {
std::set<RenderWidgetHostView*> set;
if (ShowingInterstitialPage()) {
if (RenderWidgetHostView* rwhv = GetRenderWidgetHostView())
set.insert(rwhv);
} else {
for (RenderFrameHost* rfh : GetAllFrames()) {
if (RenderWidgetHostView* rwhv = static_cast<RenderFrameHostImpl*>(rfh)
->frame_tree_node()
->render_manager()
->GetRenderWidgetHostView()) {
set.insert(rwhv);
}
}
}
return set;
}
void WebContentsImpl::Activate() {
if (delegate_)
delegate_->ActivateContents(this);
}
void WebContentsImpl::LostCapture(RenderWidgetHostImpl* render_widget_host) {
if (!RenderViewHostImpl::From(render_widget_host))
return;
if (delegate_)
delegate_->LostCapture();
}
ukm::SourceId WebContentsImpl::GetUkmSourceIdForLastCommittedSource() const {
return last_committed_source_id_;
}
ukm::SourceId
WebContentsImpl::GetUkmSourceIdForLastCommittedSourceIncludingSameDocument()
const {
return last_committed_source_id_including_same_document_;
}
void WebContentsImpl::SetTopControlsShownRatio(
RenderWidgetHostImpl* render_widget_host,
float 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) {
if (delegate_)
delegate_->SetTopControlsGestureScrollInProgress(in_progress);
}
void WebContentsImpl::RenderWidgetCreated(
RenderWidgetHostImpl* render_widget_host) {
created_widgets_.insert(render_widget_host);
}
void WebContentsImpl::RenderWidgetDeleted(
RenderWidgetHostImpl* render_widget_host) {
// Note that |is_being_destroyed_| can be true at this point as
// ~WebContentsImpl() calls RFHM::ClearRFHsPendingShutdown(), which might lead
// us here.
created_widgets_.erase(render_widget_host);
if (is_being_destroyed_)
return;
if (render_widget_host &&
render_widget_host->GetRoutingID() == fullscreen_widget_routing_id_ &&
render_widget_host->GetProcess()->GetID() ==
fullscreen_widget_process_id_) {
if (delegate_ && delegate_->EmbedsFullscreenWidget())
delegate_->ExitFullscreenModeForTab(this);
for (auto& observer : observers_)
observer.DidDestroyFullscreenWidget();
fullscreen_widget_process_id_ = ChildProcessHost::kInvalidUniqueID;
fullscreen_widget_routing_id_ = MSG_ROUTING_NONE;
if (fullscreen_widget_had_focus_at_shutdown_)
view_->RestoreFocus();
}
if (render_widget_host == mouse_lock_widget_)
LostMouseLock(mouse_lock_widget_);
CancelKeyboardLock(render_widget_host);
}
void WebContentsImpl::RenderWidgetGotFocus(
RenderWidgetHostImpl* render_widget_host) {
// Notify the observers if an embedded fullscreen widget was focused.
if (delegate_ && render_widget_host && delegate_->EmbedsFullscreenWidget() &&
render_widget_host->GetView() == GetFullscreenRenderWidgetHostView()) {
NotifyWebContentsFocused(render_widget_host);
}
}
void WebContentsImpl::RenderWidgetLostFocus(
RenderWidgetHostImpl* render_widget_host) {
// Notify the observers if an embedded fullscreen widget lost focus.
if (delegate_ && render_widget_host && delegate_->EmbedsFullscreenWidget() &&
render_widget_host->GetView() == GetFullscreenRenderWidgetHostView()) {
NotifyWebContentsLostFocus(render_widget_host);
}
}
void WebContentsImpl::RenderWidgetWasResized(
RenderWidgetHostImpl* render_widget_host,
bool width_changed) {
RenderFrameHostImpl* rfh = GetMainFrame();
if (!rfh || render_widget_host != rfh->GetRenderWidgetHost())
return;
for (auto& observer : observers_)
observer.MainFrameWasResized(width_changed);
}
KeyboardEventProcessingResult WebContentsImpl::PreHandleKeyboardEvent(
const NativeWebKeyboardEvent& event) {
return delegate_ ? delegate_->PreHandleKeyboardEvent(this, event)
: KeyboardEventProcessingResult::NOT_HANDLED;
}
bool WebContentsImpl::HandleMouseEvent(const blink::WebMouseEvent& event) {
// 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->controller_.CanGoBack()) {
outermost->controller_.GoBack();
return true;
} else if (event.button == blink::WebPointerProperties::Button::kForward &&
outermost->controller_.CanGoForward()) {
outermost->controller_.GoForward();
return true;
}
}
return false;
}
bool WebContentsImpl::HandleKeyboardEvent(const NativeWebKeyboardEvent& event) {
if (browser_plugin_embedder_ &&
browser_plugin_embedder_->HandleKeyboardEvent(event)) {
return true;
}
return delegate_ && delegate_->HandleKeyboardEvent(this, event);
}
bool WebContentsImpl::HandleWheelEvent(
const blink::WebMouseWheelEvent& event) {
#if !defined(OS_MACOSX)
// 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) {
return delegate_ && delegate_->PreHandleGestureEvent(this, event);
}
RenderWidgetHostInputEventRouter* WebContentsImpl::GetInputEventRouter() {
if (!is_being_destroyed_ && GetOuterWebContents())
return GetOuterWebContents()->GetInputEventRouter();
if (!rwh_input_event_router_.get() && !is_being_destroyed_)
rwh_input_event_router_.reset(new RenderWidgetHostInputEventRouter);
return rwh_input_event_router_.get();
}
void WebContentsImpl::ReplicatePageFocus(bool is_focused) {
// Focus loss may occur while this WebContents is being destroyed. Don't
// send the message in this case, as the main frame's RenderFrameHost and
// other state has already been cleared.
if (is_being_destroyed_)
return;
frame_tree_.ReplicatePageFocus(is_focused);
}
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;
WebContentsImpl* focused_contents = GetFocusedWebContents();
// If the focused WebContents is showing an interstitial, return the
// interstitial's widget.
if (focused_contents->ShowingInterstitialPage()) {
return static_cast<RenderFrameHostImpl*>(
focused_contents->interstitial_page_->GetMainFrame())
->GetRenderWidgetHost();
}
// If the focused WebContents is a guest WebContents, then get the focused
// frame in the embedder WebContents instead.
FrameTreeNode* focused_frame = nullptr;
if (focused_contents->browser_plugin_guest_ &&
!GuestMode::IsCrossProcessFrameGuest(focused_contents)) {
focused_frame = frame_tree_.GetFocusedFrame();
} else {
focused_frame = GetFocusedWebContents()->frame_tree_.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() {
WebContentsImpl* focused_web_contents = GetFocusedWebContents();
if (focused_web_contents->ShowingInterstitialPage()) {
return static_cast<RenderFrameHostImpl*>(
focused_web_contents->interstitial_page_->GetMainFrame())
->GetRenderWidgetHost();
}
if (!GuestMode::IsCrossProcessFrameGuest(focused_web_contents) &&
focused_web_contents->browser_plugin_guest_) {
// If this is a guest, we need to be controlled by our embedder.
return focused_web_contents->GetOuterWebContents()
->GetMainFrame()
->GetRenderWidgetHost();
}
return focused_web_contents->GetMainFrame()->GetRenderWidgetHost();
}
void WebContentsImpl::EnterFullscreenMode(
const GURL& origin,
const blink::mojom::FullscreenOptions& options) {
// This method is being called to enter renderer-initiated fullscreen mode.
// Make sure any existing fullscreen widget is shut down first.
RenderWidgetHostView* const widget_view = GetFullscreenRenderWidgetHostView();
if (widget_view) {
RenderWidgetHostImpl::From(widget_view->GetRenderWidgetHost())
->ShutdownAndDestroyWidget(true);
}
if (delegate_) {
delegate_->EnterFullscreenModeForTab(this, origin, options);
if (keyboard_lock_widget_)
delegate_->RequestKeyboardLock(this, esc_key_locked_);
}
for (auto& observer : observers_)
observer.DidToggleFullscreenModeForTab(IsFullscreenForCurrentTab(), false);
}
void WebContentsImpl::ExitFullscreenMode(bool will_cause_resize) {
// This method is being called to leave renderer-initiated fullscreen mode.
// Make sure any existing fullscreen widget is shut down first.
RenderWidgetHostView* const widget_view = GetFullscreenRenderWidgetHostView();
if (widget_view) {
RenderWidgetHostImpl::From(widget_view->GetRenderWidgetHost())
->ShutdownAndDestroyWidget(true);
}
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;
for (auto& observer : observers_) {
observer.DidToggleFullscreenModeForTab(IsFullscreenForCurrentTab(),
will_cause_resize);
}
if (display_cutout_host_impl_)
display_cutout_host_impl_->DidExitFullscreen();
}
void WebContentsImpl::FullscreenStateChanged(RenderFrameHost* rfh,
bool is_fullscreen) {
RenderFrameHostImpl* frame = static_cast<RenderFrameHostImpl*>(rfh);
if (is_fullscreen) {
if (!base::Contains(fullscreen_frames_, frame)) {
fullscreen_frames_.insert(frame);
FullscreenFrameSetUpdated();
}
return;
}
// If |frame| 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) {
return (current == frame || current->IsDescendantOf(frame));
});
if (size_before_deletion != fullscreen_frames_.size())
FullscreenFrameSetUpdated();
}
void 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;
for (auto& observer : observers_)
observer.DidAcquireFullscreen(new_fullscreen_frame);
if (display_cutout_host_impl_)
display_cutout_host_impl_->DidAcquireFullscreen(new_fullscreen_frame);
}
void WebContentsImpl::UpdateVisibilityAndNotifyPageAndView(
Visibility new_visibility) {
if (new_visibility == Visibility::VISIBLE)
controller_.SetActive(true);
// Only hide the page if there are no entities capturing screenshots
// or video (e.g. mirroring).
const bool page_is_visible =
new_visibility == Visibility::VISIBLE || IsBeingCaptured();
// If there are entities in Picture-in-Picture mode, don't activate
// the "disable rendering" optimization.
const bool view_is_visible = page_is_visible || HasPictureInPictureVideo();
// 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.
if (page_is_visible) {
SendPageMessage(new PageMsg_VisibilityChanged(
MSG_ROUTING_NONE, PageVisibilityState::kVisible));
}
// |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) {
view->Show();
#if defined(OS_MACOSX)
view->SetActive(true);
#endif
} else if (new_visibility == Visibility::HIDDEN) {
view->Hide();
} else {
view->WasOccluded();
}
}
if (!ShowingInterstitialPage())
SetVisibilityForChildViews(view_is_visible);
// Make sure to call SetVisibilityAndNotifyObservers(VISIBLE) before notifying
// the CrossProcessFrameConnector.
if (new_visibility == Visibility::VISIBLE) {
last_active_time_ = base::TimeTicks::Now();
SetVisibilityAndNotifyObservers(new_visibility);
}
if (!page_is_visible) {
// Similar to when showing the page, we only hide the page after
// hiding the individual RenderWidgets.
SendPageMessage(new PageMsg_VisibilityChanged(
MSG_ROUTING_NONE, PageVisibilityState::kHidden));
} else {
for (FrameTreeNode* node : frame_tree_.Nodes()) {
RenderFrameProxyHost* parent = node->render_manager()->GetProxyToParent();
if (!parent)
continue;
parent->cross_process_frame_connector()->DelegateWasShown();
}
}
if (new_visibility != Visibility::VISIBLE)
SetVisibilityAndNotifyObservers(new_visibility);
}
#if defined(OS_ANDROID)
void WebContentsImpl::UpdateUserGestureCarryoverInfo() {
if (delegate_)
delegate_->UpdateUserGestureCarryoverInfo(this);
}
#endif
bool WebContentsImpl::IsFullscreenForCurrentTab() {
return delegate_ ? delegate_->IsFullscreenForTabOrPending(this) : false;
}
bool WebContentsImpl::ShouldShowStaleContentOnEviction() {
return GetDelegate() && GetDelegate()->ShouldShowStaleContentOnEviction(this);
}
bool WebContentsImpl::IsFullscreen() {
return IsFullscreenForCurrentTab();
}
blink::mojom::DisplayMode WebContentsImpl::GetDisplayMode(
RenderWidgetHostImpl* render_widget_host) const {
if (!RenderViewHostImpl::From(render_widget_host))
return blink::mojom::DisplayMode::kBrowser;
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) {
for (WebContentsImpl* current = this; current;
current = current->GetOuterWebContents()) {
if (current->mouse_lock_widget_) {
render_widget_host->GotResponseToLockMouseRequest(false);
return;
}
}
if (privileged) {
DCHECK(!GetOuterWebContents());
mouse_lock_widget_ = render_widget_host;
render_widget_host->GotResponseToLockMouseRequest(true);
return;
}
bool widget_in_frame_tree = false;
for (FrameTreeNode* node : 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(false);
}
}
void WebContentsImpl::LostMouseLock(RenderWidgetHostImpl* render_widget_host) {
CHECK(mouse_lock_widget_);
if (mouse_lock_widget_->delegate()->GetAsWebContents() != 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()) ||
(GetFullscreenRenderWidgetHostView() &&
GetFullscreenRenderWidgetHostView()->IsMouseLocked())) {
return mouse_lock_widget_;
}
return nullptr;
}
bool WebContentsImpl::RequestKeyboardLock(
RenderWidgetHostImpl* render_widget_host,
bool esc_key_locked) {
DCHECK(render_widget_host);
if (render_widget_host->delegate()->GetAsWebContents() != 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) {
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_;
}
void WebContentsImpl::OnRenderFrameProxyVisibilityChanged(
blink::mojom::FrameVisibility visibility) {
switch (visibility) {
case blink::mojom::FrameVisibility::kRenderedInViewport:
WasShown();
break;
case blink::mojom::FrameVisibility::kNotRendered:
WasHidden();
break;
case blink::mojom::FrameVisibility::kRenderedOutOfViewport:
WasOccluded();
break;
}
}
RenderFrameHostDelegate* WebContentsImpl::CreateNewWindow(
RenderFrameHost* opener,
const mojom::CreateNewWindowParams& params,
bool is_new_browsing_instance,
bool has_user_gesture,
SessionStorageNamespace* session_storage_namespace) {
DCHECK(opener);
int render_process_id = opener->GetProcess()->GetID();
SiteInstance* source_site_instance = opener->GetSiteInstance();
// 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 (in a non-guest), we create a new
// SiteInstance in its own BrowsingInstance.
bool is_guest = BrowserPluginGuest::IsGuest(this);
scoped_refptr<SiteInstance> site_instance =
params.opener_suppressed && !is_guest
? SiteInstance::CreateForURL(GetBrowserContext(), params.target_url)
: source_site_instance;
// We must assign the SessionStorageNamespace before calling Init().
//
// http://crbug.com/142685
const std::string& partition_id =
GetContentClient()->browser()->
GetStoragePartitionIdForSite(GetBrowserContext(),
site_instance->GetSiteURL());
StoragePartition* partition = BrowserContext::GetStoragePartition(
GetBrowserContext(), site_instance.get());
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)) {
return static_cast<WebContentsImpl*>(delegate_->CreateCustomWebContents(
opener, source_site_instance, is_new_browsing_instance,
opener->GetLastCommittedURL(), params.frame_name, params.target_url,
partition_id, session_storage_namespace));
}
bool renderer_started_hidden =
params.disposition == WindowOpenDisposition::NEW_BACKGROUND_TAB;
// 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;
// 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;
// If |is_new_browsing_instance| is true, defer routing_id allocation
// to the WebContentsImpl::Create() call. This is required because with
// a new browsing instance, WebContentsImpl::Create() may elect a different
// SiteInstance from |site_instance| (which happens if |site_instance| is
// nullptr for example).
//
// TODO(ajwong): This routing id allocation should be pushed down further
// into WebContentsImpl::Create().
if (!is_new_browsing_instance) {
create_params.routing_id = opener->GetProcess()->GetNextRoutingID();
create_params.main_frame_routing_id =
opener->GetProcess()->GetNextRoutingID();
create_params.main_frame_widget_routing_id =
opener->GetProcess()->GetNextRoutingID();
}
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_id, 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();
// 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(), false);
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
DCHECK_NE(MSG_ROUTING_NONE, create_params.main_frame_routing_id);
GlobalRoutingID id(render_process_id,
create_params.main_frame_widget_routing_id);
pending_contents_[id] = std::move(new_contents);
AddDestructionObserver(new_contents_impl);
}
if (delegate_) {
delegate_->WebContentsCreated(this, render_process_id,
opener->GetRoutingID(), params.frame_name,
params.target_url, new_contents_impl);
}
for (auto& observer : observers_) {
observer.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
}
// Any new WebContents opened while this WebContents is in fullscreen can be
// used to confuse the user, so drop fullscreen.
ForSecurityDropFullscreen();
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.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->referrer = params.referrer.To<Referrer>();
load_params->transition_type = ui::PAGE_TRANSITION_LINK;
load_params->is_renderer_initiated = true;
load_params->has_user_gesture = has_user_gesture;
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->controller_.LoadURLWithParams(*load_params.get());
if (!is_guest)
new_contents_impl->Focus();
}
}
}
return new_contents_impl;
}
void WebContentsImpl::CreateNewWidget(int32_t render_process_id,
int32_t widget_route_id,
mojo::PendingRemote<mojom::Widget> widget,
RenderViewHostImpl* render_view_host) {
CreateNewWidget(render_process_id, widget_route_id, /*is_fullscreen=*/false,
std::move(widget), render_view_host);
}
void WebContentsImpl::CreateNewFullscreenWidget(
int32_t render_process_id,
int32_t widget_route_id,
mojo::PendingRemote<mojom::Widget> widget,
RenderViewHostImpl* render_view_host) {
CreateNewWidget(render_process_id, widget_route_id, /*is_fullscreen=*/true,
std::move(widget), render_view_host);
}
void WebContentsImpl::CreateNewWidget(int32_t render_process_id,
int32_t route_id,
bool is_fullscreen,
mojo::PendingRemote<mojom::Widget> widget,
RenderViewHostImpl* render_view_host) {
RenderProcessHost* process = RenderProcessHost::FromID(render_process_id);
// A message to create a new widget can only come from an active process for
// this WebContentsImpl instance. If any other process sends the request,
// it is invalid and the process must be terminated.
if (!HasMatchingProcess(&frame_tree_, render_process_id)) {
ReceivedBadMessage(process, bad_message::WCI_NEW_WIDGET_PROCESS_MISMATCH);
return;
}
RenderWidgetHostImpl* widget_host = new RenderWidgetHostImpl(
this, process, route_id, std::move(widget), IsHidden(),
std::make_unique<FrameTokenMessageQueue>());
RenderWidgetHostViewBase* widget_view =
static_cast<RenderWidgetHostViewBase*>(
view_->CreateViewForChildWidget(widget_host));
if (!widget_view)
return;
// Fullscreen child widgets are frames, other child widgets are popups, and
// popups should not get activated.
if (!is_fullscreen)
widget_view->SetWidgetType(WidgetType::kPopup);
// Save the created widget associated with the route so we can show it later.
pending_widget_views_[GlobalRoutingID(render_process_id, route_id)] =
widget_view;
}
void WebContentsImpl::ShowCreatedWindow(int process_id,
int main_frame_widget_route_id,
WindowOpenDisposition disposition,
const gfx::Rect& initial_rect,
bool user_gesture) {
// 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?
std::unique_ptr<WebContentsImpl> owned_created =
GetCreatedWindow(process_id, main_frame_widget_route_id);
WebContentsImpl* created = owned_created.get();
// The browser may have rejected the request to make a new window, or the
// renderer could be sending an invalid route id. Ignore the request then.
if (!created)
return;
// 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();
// 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();
base::WeakPtr<WebContentsImpl> weak_created =
created->weak_factory_.GetWeakPtr();
delegate->AddNewContents(this, std::move(owned_created), disposition,
initial_rect, user_gesture, nullptr);
// The delegate may delete |created| during AddNewContents().
if (!weak_created)
return;
}
RenderWidgetHostImpl* rwh = created->GetMainFrame()->GetRenderWidgetHost();
DCHECK_EQ(main_frame_widget_route_id, rwh->GetRoutingID());
rwh->Send(new WidgetMsg_SetBounds_ACK(rwh->GetRoutingID()));
}
void WebContentsImpl::ShowCreatedWidget(int process_id,
int widget_route_id,
const gfx::Rect& initial_rect) {
ShowCreatedWidget(process_id, widget_route_id, false, initial_rect);
}
void WebContentsImpl::ShowCreatedFullscreenWidget(int process_id,
int widget_route_id) {
ShowCreatedWidget(process_id, widget_route_id, true, gfx::Rect());
}
void WebContentsImpl::ShowCreatedWidget(int process_id,
int route_id,
bool is_fullscreen,
const gfx::Rect& initial_rect) {
RenderWidgetHostViewBase* widget_host_view =
static_cast<RenderWidgetHostViewBase*>(
GetCreatedWidget(process_id, 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);
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());
}
// Fullscreen child widgets are frames, other child widgets are popups.
if (is_fullscreen) {
DCHECK_EQ(MSG_ROUTING_NONE, fullscreen_widget_routing_id_);
view_->StoreFocus();
fullscreen_widget_process_id_ =
widget_host_view->GetRenderWidgetHost()->GetProcess()->GetID();
fullscreen_widget_routing_id_ = route_id;
if (delegate_ && delegate_->EmbedsFullscreenWidget()) {
widget_host_view->InitAsChild(GetRenderWidgetHostView()->GetNativeView());
delegate_->EnterFullscreenModeForTab(this, GURL(),
blink::mojom::FullscreenOptions());
} else {
widget_host_view->InitAsFullscreen(view);
}
for (auto& observer : observers_)
observer.DidShowFullscreenWidget();
if (!widget_host_view->HasFocus())
widget_host_view->Focus();
} else {
widget_host_view->InitAsPopup(view, transformed_rect);
}
RenderWidgetHostImpl* render_widget_host_impl = widget_host_view->host();
render_widget_host_impl->Init();
// Only allow privileged mouse lock for fullscreen render widget, which is
// used to implement Pepper Flash fullscreen.
render_widget_host_impl->set_allow_privileged_mouse_lock(is_fullscreen);
}
std::unique_ptr<WebContentsImpl> WebContentsImpl::GetCreatedWindow(
int process_id,
int 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 nullptr;
std::unique_ptr<WebContentsImpl> new_contents = std::move(iter->second);
pending_contents_.erase(key);
RemoveDestructionObserver(new_contents.get());
// Don't initialize the guest WebContents immediately.
if (BrowserPluginGuest::IsGuest(new_contents.get()))
return new_contents;
if (!new_contents->GetMainFrame()->GetProcess()->IsInitializedAndNotDead() ||
!new_contents->GetMainFrame()->GetView()) {
return nullptr;
}
return new_contents;
}
RenderWidgetHostView* WebContentsImpl::GetCreatedWidget(int process_id,
int route_id) {
auto iter = pending_widget_views_.find(GlobalRoutingID(process_id, route_id));
if (iter == pending_widget_views_.end()) {
DCHECK(false);
return nullptr;
}
RenderWidgetHostView* widget_host_view = iter->second;
pending_widget_views_.erase(GlobalRoutingID(process_id, route_id));
RenderWidgetHost* widget_host = widget_host_view->GetRenderWidgetHost();
if (!widget_host->GetProcess()->IsInitializedAndNotDead()) {
// The view has gone away or the renderer crashed. Nothing to do.
return nullptr;
}
return widget_host_view;
}
void WebContentsImpl::RequestMediaAccessPermission(
const MediaStreamRequest& request,
MediaResponseCallback callback) {
if (delegate_) {
delegate_->RequestMediaAccessPermission(this, request, std::move(callback));
} else {
std::move(callback).Run(
blink::MediaStreamDevices(),
blink::mojom::MediaStreamRequestResult::FAILED_DUE_TO_SHUTDOWN,
std::unique_ptr<MediaStreamUI>());
}
}
bool WebContentsImpl::CheckMediaAccessPermission(
RenderFrameHost* render_frame_host,
const url::Origin& security_origin,
blink::mojom::MediaStreamType type) {
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) {
if (!delegate_)
return std::string();
return delegate_->GetDefaultMediaDeviceID(this, type);
}
SessionStorageNamespace* WebContentsImpl::GetSessionStorageNamespace(
SiteInstance* instance) {
return controller_.GetSessionStorageNamespace(instance);
}
SessionStorageNamespaceMap WebContentsImpl::GetSessionStorageNamespaceMap() {
return controller_.GetSessionStorageNamespaceMap();
}
FrameTree* WebContentsImpl::GetFrameTree() {
return &frame_tree_;
}
bool WebContentsImpl::IsOverridingUserAgent() {
return GetController().GetVisibleEntry() &&
GetController().GetVisibleEntry()->GetIsOverridingUserAgent();
}
bool WebContentsImpl::IsJavaScriptDialogShowing() const {
return is_showing_javascript_dialog_;
}
bool WebContentsImpl::ShouldIgnoreUnresponsiveRenderer() {
// Ignore unresponsive renderers if the debugger is attached to them since the
// unresponsiveness might be a result of the renderer sitting on a breakpoint.
//
#ifdef OS_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 // OS_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::AccessibilityEventReceived(
const AXEventNotificationDetails& details) {
for (auto& observer : observers_)
observer.AccessibilityEventReceived(details);
}
void WebContentsImpl::AccessibilityLocationChangesReceived(
const std::vector<AXLocationChangeNotificationDetails>& details) {
for (auto& observer : observers_)
observer.AccessibilityLocationChangesReceived(details);
}
base::string16 WebContentsImpl::DumpAccessibilityTree(
bool internal,
std::vector<AccessibilityTreeFormatter::PropertyFilter> property_filters) {
auto* ax_mgr = GetOrCreateRootBrowserAccessibilityManager();
DCHECK(ax_mgr);
return AccessibilityTreeFormatter::DumpAccessibilityTreeFromManager(
ax_mgr, internal, property_filters);
}
void WebContentsImpl::RecordAccessibilityEvents(
AccessibilityEventCallback callback,
bool start) {
if (start) {
SetAccessibilityMode(ui::AXMode::kWebContents);
auto* ax_mgr = GetOrCreateRootBrowserAccessibilityManager();
DCHECK(ax_mgr);
base::ProcessId pid = base::Process::Current().Pid();
event_recorder_ = content::AccessibilityEventRecorder::Create(
ax_mgr, pid, base::StringPiece{});
event_recorder_->ListenToEvents(callback);
} else {
DCHECK(event_recorder_);
event_recorder_->FlushAsyncEvents();
event_recorder_ = nullptr;
}
}
RenderFrameHost* WebContentsImpl::GetGuestByInstanceID(
RenderFrameHost* render_frame_host,
int browser_plugin_instance_id) {
BrowserPluginGuestManager* guest_manager =
GetBrowserContext()->GetGuestManager();
if (!guest_manager)
return nullptr;
WebContents* guest = guest_manager->GetGuestByInstanceID(
render_frame_host->GetProcess()->GetID(), browser_plugin_instance_id);
if (!guest)
return nullptr;
return guest->GetMainFrame();
}
device::mojom::GeolocationContext* WebContentsImpl::GetGeolocationContext() {
if (geolocation_context_)
return geolocation_context_.get();
service_manager::Connector* connector = GetSystemConnector();
auto receiver = geolocation_context_.BindNewPipeAndPassReceiver();
if (connector)
connector->Connect(device::mojom::kServiceName, std::move(receiver));
return geolocation_context_.get();
}
device::mojom::WakeLockContext* WebContentsImpl::GetWakeLockContext() {
if (!wake_lock_context_host_)
wake_lock_context_host_.reset(new WakeLockContextHost(this));
return wake_lock_context_host_->GetWakeLockContext();
}
#if defined(OS_ANDROID)
void WebContentsImpl::GetNFC(
mojo::PendingReceiver<device::mojom::NFC> receiver) {
NFCHost nfc_host(this);
nfc_host.GetNFC(std::move(receiver));
}
#endif
void WebContentsImpl::SetNotWaitingForResponse() {
if (waiting_for_response_ == false)
return;
waiting_for_response_ = false;
if (delegate_)
delegate_->LoadingStateChanged(this, is_load_to_different_document_);
for (auto& observer : observers_)
observer.DidReceiveResponse();
}
void WebContentsImpl::SendScreenRects() {
for (FrameTreeNode* node : frame_tree_.Nodes()) {
if (node->current_frame_host()->is_local_root())
node->current_frame_host()->GetRenderWidgetHost()->SendScreenRects();
}
// Interstitials have their own |frame_tree_|.
if (interstitial_page_) {
FrameTree* interstitial_frame_tree = interstitial_page_->GetFrameTree();
for (FrameTreeNode* node : interstitial_frame_tree->Nodes()) {
if (node->current_frame_host()->is_local_root())
node->current_frame_host()->GetRenderWidgetHost()->SendScreenRects();
}
}
if (browser_plugin_embedder_ && !is_being_destroyed_)
browser_plugin_embedder_->DidSendScreenRects();
}
TextInputManager* WebContentsImpl::GetTextInputManager() {
if (GetOuterWebContents())
return GetOuterWebContents()->GetTextInputManager();
if (!text_input_manager_ && !browser_plugin_guest_) {
text_input_manager_.reset(new TextInputManager(
GetBrowserContext() &&
!GetBrowserContext()->IsOffTheRecord()) /* should_do_learning */);
}
return text_input_manager_.get();
}
bool WebContentsImpl::OnUpdateDragCursor() {
return browser_plugin_embedder_ &&
browser_plugin_embedder_->OnUpdateDragCursor();
}
bool WebContentsImpl::IsWidgetForMainFrame(
RenderWidgetHostImpl* render_widget_host) {
return render_widget_host == GetMainFrame()->GetRenderWidgetHost();
}
BrowserAccessibilityManager*
WebContentsImpl::GetRootBrowserAccessibilityManager() {
RenderFrameHostImpl* rfh = static_cast<RenderFrameHostImpl*>(
ShowingInterstitialPage() ? GetInterstitialPage()->GetMainFrame()
: GetMainFrame());
return rfh ? rfh->browser_accessibility_manager() : nullptr;
}
BrowserAccessibilityManager*
WebContentsImpl::GetOrCreateRootBrowserAccessibilityManager() {
RenderFrameHostImpl* rfh = static_cast<RenderFrameHostImpl*>(
ShowingInterstitialPage() ? GetInterstitialPage()->GetMainFrame()
: GetMainFrame());
return rfh ? rfh->GetOrCreateBrowserAccessibilityManager() : nullptr;
}
void WebContentsImpl::ExecuteEditCommand(
const std::string& command,
const base::Optional<base::string16>& value) {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->ExecuteEditCommand(command, value);
}
void WebContentsImpl::MoveRangeSelectionExtent(const gfx::Point& extent) {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->MoveRangeSelectionExtent(extent);
}
void WebContentsImpl::SelectRange(const gfx::Point& base,
const gfx::Point& extent) {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->SelectRange(base, extent);
}
void WebContentsImpl::MoveCaret(const gfx::Point& extent) {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->MoveCaret(extent);
}
void WebContentsImpl::AdjustSelectionByCharacterOffset(
int start_adjust,
int end_adjust,
bool show_selection_menu) {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
using blink::mojom::SelectionMenuBehavior;
input_handler->AdjustSelectionByCharacterOffset(
start_adjust, end_adjust,
show_selection_menu ? SelectionMenuBehavior::kShow
: SelectionMenuBehavior::kHide);
}
void WebContentsImpl::UpdatePreferredSize(const gfx::Size& pref_size) {
const gfx::Size old_size = GetPreferredSize();
preferred_size_ = pref_size;
OnPreferredSizeChanged(old_size);
}
void WebContentsImpl::ResizeDueToAutoResize(
RenderWidgetHostImpl* render_widget_host,
const gfx::Size& new_size) {
if (render_widget_host != GetRenderViewHost()->GetWidget())
return;
auto_resize_size_ = new_size;
// Out-of-process iframe visible viewport sizes usually come from the
// top-level RenderWidgetHostView, but when auto-resize is enabled on the
// top frame then that size is used instead.
for (FrameTreeNode* node : frame_tree_.Nodes()) {
if (node->current_frame_host()->is_local_root()) {
RenderWidgetHostImpl* host =
node->current_frame_host()->GetRenderWidgetHost();
if (host != render_widget_host)
host->SynchronizeVisualProperties();
}
}
if (delegate_)
delegate_->ResizeDueToAutoResize(this, new_size);
}
gfx::Size WebContentsImpl::GetAutoResizeSize() {
return auto_resize_size_;
}
void WebContentsImpl::ResetAutoResizeSize() {
auto_resize_size_ = gfx::Size();
}
InputEventShim* WebContentsImpl::GetInputEventShim() const {
// The only thing that intercepts text input and mouse lock is the
// BrowserPluginGuest. Delegate to the BrowserPluginGuest logic for
// whether or not it needs to shim these events.
if (browser_plugin_guest_) {
return browser_plugin_guest_->GetInputEventShim();
}
return nullptr;
}
WebContents* WebContentsImpl::OpenURL(const OpenURLParams& params) {
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;
}
WebContents* new_contents = delegate_->OpenURLFromTab(this, params);
RenderFrameHost* source_render_frame_host = RenderFrameHost::FromID(
params.source_render_process_id, params.source_render_frame_id);
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) {
for (auto& observer : observers_) {
observer.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::RenderFrameForInterstitialPageCreated(
RenderFrameHost* render_frame_host) {
for (auto& observer : observers_)
observer.RenderFrameForInterstitialPageCreated(render_frame_host);
}
void WebContentsImpl::AttachInterstitialPage(
InterstitialPageImpl* interstitial_page) {
DCHECK(!interstitial_page_ && interstitial_page);
interstitial_page_ = interstitial_page;
// Cancel any visible dialogs so that they don't interfere with the
// interstitial.
CancelActiveAndPendingDialogs();
for (auto& observer : observers_)
observer.DidAttachInterstitialPage();
// Stop the throbber if needed while the interstitial page is shown.
if (frame_tree_.IsLoading())
LoadingStateChanged(true, true, nullptr);
// Connect to outer WebContents if necessary.
if (node_.OuterContentsFrameTreeNode()) {
if (GetRenderManager()->GetProxyToOuterDelegate()) {
DCHECK(
static_cast<RenderWidgetHostViewBase*>(interstitial_page->GetView())
->IsRenderWidgetHostViewChildFrame());
RenderWidgetHostViewChildFrame* view =
static_cast<RenderWidgetHostViewChildFrame*>(
interstitial_page->GetView());
GetRenderManager()->SetRWHViewForInnerContents(view);
}
}
#if defined(OS_ANDROID)
// Update importance of the interstitial.
static_cast<RenderFrameHostImpl*>(interstitial_page_->GetMainFrame())
->GetRenderWidgetHost()
->SetImportance(GetMainFrame()->GetRenderWidgetHost()->importance());
#endif
if (accessibility_mode_.has_mode(ui::AXMode::kNativeAPIs)) {
// Make sure that the main page's accessibility tree is hidden and the
// interstitial gets focus.
RenderFrameHostImpl* rfh =
static_cast<RenderFrameHostImpl*>(GetMainFrame());
if (rfh) {
BrowserAccessibilityManager* accessibility_manager =
rfh->browser_accessibility_manager();
if (accessibility_manager)
accessibility_manager->set_hidden_by_interstitial_page(true);
}
rfh = static_cast<RenderFrameHostImpl*>(
GetInterstitialPage()->GetMainFrame());
if (rfh) {
BrowserAccessibilityManager* accessibility_manager =
rfh->GetOrCreateBrowserAccessibilityManager();
if (accessibility_manager)
accessibility_manager->OnWindowFocused();
}
}
}
void WebContentsImpl::DidProceedOnInterstitial() {
// The interstitial page should no longer be pausing the throbber.
DCHECK(!(ShowingInterstitialPage() && interstitial_page_->pause_throbber()));
// Restart the throbber now that the interstitial page no longer pauses it.
if (ShowingInterstitialPage() && frame_tree_.IsLoading())
LoadingStateChanged(true, true, nullptr);
}
bool WebContentsImpl::HadInnerWebContents() {
return had_inner_webcontents_;
}
void WebContentsImpl::DetachInterstitialPage(bool has_focus) {
bool interstitial_pausing_throbber =
ShowingInterstitialPage() && interstitial_page_->pause_throbber();
if (ShowingInterstitialPage())
interstitial_page_ = nullptr;
// Make sure that the main page's accessibility tree is no longer
// suppressed.
RenderFrameHostImpl* rfh = GetMainFrame();
if (rfh) {
BrowserAccessibilityManager* accessibility_manager =
rfh->browser_accessibility_manager();
if (accessibility_manager)
accessibility_manager->set_hidden_by_interstitial_page(false);
}
// If the focus was on the interstitial, let's keep it to the page.
// (Note that in unit-tests the RVH may not have a view).
if (has_focus && GetRenderViewHost()->GetWidget()->GetView())
GetRenderViewHost()->GetWidget()->GetView()->Focus();
for (auto& observer : observers_)
observer.DidDetachInterstitialPage();
// Disconnect from outer WebContents if necessary. This must happen after the
// interstitial page is cleared above, since the call to
// SetRWHViewForInnerContents below may loop over all the
// RenderWidgetHostViews in the tree (otherwise, including the now-deleted
// view for the interstitial).
if (node_.OuterContentsFrameTreeNode()) {
if (GetRenderManager()->GetProxyToOuterDelegate()) {
DCHECK(static_cast<RenderWidgetHostViewBase*>(
GetRenderManager()->current_frame_host()->GetView())
->IsRenderWidgetHostViewChildFrame());
RenderWidgetHostViewChildFrame* view =
static_cast<RenderWidgetHostViewChildFrame*>(
GetRenderManager()->current_frame_host()->GetView());
GetRenderManager()->SetRWHViewForInnerContents(view);
}
}
// Restart the throbber if needed now that the interstitial page is going
// away.
if (interstitial_pausing_throbber && frame_tree_.IsLoading())
LoadingStateChanged(true, true, nullptr);
}
void WebContentsImpl::SetHistoryOffsetAndLength(int history_offset,
int history_length) {
SendPageMessage(new PageMsg_SetHistoryOffsetAndLength(
MSG_ROUTING_NONE, history_offset, history_length));
}
void WebContentsImpl::SetHistoryOffsetAndLengthForView(
RenderViewHost* render_view_host,
int history_offset,
int history_length) {
render_view_host->Send(new PageMsg_SetHistoryOffsetAndLength(
render_view_host->GetRoutingID(), history_offset, history_length));
}
void WebContentsImpl::ReloadFocusedFrame() {
RenderFrameHost* focused_frame = GetFocusedFrame();
if (!focused_frame)
return;
focused_frame->Reload();
}
std::vector<mojo::Remote<blink::mojom::PauseSubresourceLoadingHandle>>
WebContentsImpl::PauseSubresourceLoading() {
std::vector<mojo::Remote<blink::mojom::PauseSubresourceLoadingHandle>>
handles;
for (RenderFrameHost* rfh : GetAllFrames()) {
if (!rfh->IsRenderFrameLive())
continue;
handles.push_back(rfh->PauseSubresourceLoading());
}
return handles;
}
void WebContentsImpl::Undo() {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->Undo();
RecordAction(base::UserMetricsAction("Undo"));
}
void WebContentsImpl::Redo() {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->Redo();
RecordAction(base::UserMetricsAction("Redo"));
}
void WebContentsImpl::Cut() {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->Cut();
RecordAction(base::UserMetricsAction("Cut"));
}
void WebContentsImpl::Copy() {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->Copy();
RecordAction(base::UserMetricsAction("Copy"));
}
void WebContentsImpl::CopyToFindPboard() {
#if defined(OS_MACOSX)
auto* input_handler = GetFocusedFrameInputHandler();
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() {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->Paste();
for (auto& observer : observers_)
observer.OnPaste();
RecordAction(base::UserMetricsAction("Paste"));
}
void WebContentsImpl::PasteAndMatchStyle() {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->PasteAndMatchStyle();
for (auto& observer : observers_)
observer.OnPaste();
RecordAction(base::UserMetricsAction("PasteAndMatchStyle"));
}
void WebContentsImpl::Delete() {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->Delete();
RecordAction(base::UserMetricsAction("DeleteSelection"));
}
void WebContentsImpl::SelectAll() {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->SelectAll();
RecordAction(base::UserMetricsAction("SelectAll"));
}
void WebContentsImpl::CollapseSelection() {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->CollapseSelection();
}
void WebContentsImpl::Replace(const base::string16& word) {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->Replace(word);
}
void WebContentsImpl::ReplaceMisspelling(const base::string16& word) {
auto* input_handler = GetFocusedFrameInputHandler();
if (!input_handler)
return;
input_handler->ReplaceMisspelling(word);
}
void WebContentsImpl::NotifyContextMenuClosed(
const CustomContextMenuContext& context) {
RenderFrameHost* focused_frame = GetFocusedFrame();
if (!focused_frame)
return;
focused_frame->Send(new FrameMsg_ContextMenuClosed(
focused_frame->GetRoutingID(), context));
}
void WebContentsImpl::ExecuteCustomContextMenuCommand(
int action, const CustomContextMenuContext& context) {
RenderFrameHost* focused_frame = GetFocusedFrame();
if (!focused_frame)
return;
focused_frame->Send(new FrameMsg_CustomContextMenuAction(
focused_frame->GetRoutingID(), context, 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() {
gfx::Rect rv;
view_->GetContainerBounds(&rv);
return rv;
}
DropData* WebContentsImpl::GetDropData() {
return view_->GetDropData();
}
void WebContentsImpl::Focus() {
view_->Focus();
}
void WebContentsImpl::SetInitialFocus() {
view_->SetInitialFocus();
}
void WebContentsImpl::StoreFocus() {
view_->StoreFocus();
}
void WebContentsImpl::RestoreFocus() {
view_->RestoreFocus();
}
void WebContentsImpl::FocusThroughTabTraversal(bool reverse) {
view_->FocusThroughTabTraversal(reverse);
}
bool WebContentsImpl::ShowingInterstitialPage() {
return interstitial_page_ != nullptr;
}
InterstitialPageImpl* WebContentsImpl::GetInterstitialPage() {
return interstitial_page_;
}
bool WebContentsImpl::IsSavable() {
// WebKit creates Document object when MIME type is application/xhtml+xml,
// so we also support this MIME type.
return contents_mime_type_ == "text/html" ||
contents_mime_type_ == "text/xml" ||
contents_mime_type_ == "application/xhtml+xml" ||
contents_mime_type_ == "text/plain" ||
contents_mime_type_ == "text/css" ||
blink::IsSupportedJavascriptMimeType(contents_mime_type_);
}
void 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());
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(this);
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) {
// Stop the page from navigating.
Stop();
save_package_ = new SavePackage(this, save_type, main_file, dir_path);
return save_package_->Init(SavePackageDownloadCreatedCallback());
}
void WebContentsImpl::SaveFrame(const GURL& url,
const Referrer& referrer) {
SaveFrameWithHeaders(url, referrer, std::string(), base::string16());
}
void WebContentsImpl::SaveFrameWithHeaders(
const GURL& url,
const Referrer& referrer,
const std::string& headers,
const base::string16& suggested_filename) {
// 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))
return;
// TODO(nasko): This check for main frame is incorrect and should be fixed
// by explicitly passing in which frame this method should target. This would
// indicate whether it's the main frame, and also tell us the frame pointer
// to use for routing.
bool is_main_frame = (url == GetLastCommittedURL());
RenderFrameHost* frame_host = GetMainFrame();
int64_t post_id = -1;
if (is_main_frame) {
NavigationEntry* entry = 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, frame_host->GetProcess()->GetID(),
frame_host->GetRenderViewHost()->GetRoutingID(),
frame_host->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()) {
params->set_prefer_cache(true);
} else {
for (download::DownloadUrlParameters::RequestHeadersNameValuePair
key_value : ParseDownloadHeaders(headers)) {
params->add_request_header(key_value.first, key_value.second);
}
}
params->set_suggested_name(suggested_filename);
params->set_download_source(download::DownloadSource::WEB_CONTENTS_API);
BrowserContext::GetDownloadManager(GetBrowserContext())
->DownloadUrl(std::move(params));
}
void WebContentsImpl::GenerateMHTML(
const MHTMLGenerationParams& params,
base::OnceCallback<void(int64_t)> callback) {
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) {
MHTMLGenerationManager::GetInstance()->SaveMHTML(this, params,
std::move(callback));
}
const std::string& WebContentsImpl::GetContentsMimeType() {
return contents_mime_type_;
}
bool WebContentsImpl::WillNotifyDisconnection() {
return notify_disconnection_;
}
blink::mojom::RendererPreferences* WebContentsImpl::GetMutableRendererPrefs() {
return &renderer_preferences_;
}
void WebContentsImpl::Close() {
Close(GetRenderViewHost());
}
void WebContentsImpl::DragSourceEndedAt(float client_x,
float client_y,
float screen_x,
float screen_y,
blink::WebDragOperation operation,
RenderWidgetHost* source_rwh) {
if (browser_plugin_embedder_) {
browser_plugin_embedder_->DragSourceEndedAt(
client_x, client_y, screen_x, screen_y, operation);
}
if (source_rwh) {
source_rwh->DragSourceEndedAt(gfx::PointF(client_x, client_y),
gfx::PointF(screen_x, screen_y), operation);
}
}
void WebContentsImpl::LoadStateChanged(
const std::string& host,
const net::LoadStateWithParam& load_state,
uint64_t upload_position,
uint64_t upload_size) {
base::string16 host16 = url_formatter::IDNToUnicode(host);
// Drop no-op updates.
if (load_state_.state == load_state.state &&
load_state_.param == load_state.param &&
upload_position_ == upload_position && upload_size_ == upload_size &&
load_state_host_ == host16) {
return;
}
load_state_ = load_state;
upload_position_ = upload_position;
upload_size_ = upload_size;
load_state_host_ = host16;
if (load_state_.state == net::LOAD_STATE_READING_RESPONSE)
SetNotWaitingForResponse();
if (IsLoading()) {
NotifyNavigationStateChanged(static_cast<InvalidateTypes>(
INVALIDATE_TYPE_LOAD | INVALIDATE_TYPE_TAB));
}
}
void WebContentsImpl::SetVisibilityAndNotifyObservers(Visibility 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_)) {
for (auto& observer : observers_)
observer.OnVisibilityChanged(visibility);
}
}
void WebContentsImpl::NotifyWebContentsFocused(
RenderWidgetHost* render_widget_host) {
for (auto& observer : observers_)
observer.OnWebContentsFocused(render_widget_host);
}
void WebContentsImpl::NotifyWebContentsLostFocus(
RenderWidgetHost* render_widget_host) {
for (auto& observer : observers_)
observer.OnWebContentsLostFocus(render_widget_host);
}
void WebContentsImpl::SystemDragEnded(RenderWidgetHost* source_rwh) {
if (source_rwh)
source_rwh->DragSourceSystemDragEnded();
if (browser_plugin_embedder_)
browser_plugin_embedder_->SystemDragEnded();
}
void WebContentsImpl::SetClosedByUserGesture(bool 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 page_scale_factor) {
GetRenderViewHost()->Send(new ViewMsg_SetPageScale(
GetRenderViewHost()->GetRoutingID(), page_scale_factor));
}
gfx::Size WebContentsImpl::GetPreferredSize() {
return IsBeingCaptured() ? preferred_size_for_capture_ : preferred_size_;
}
bool WebContentsImpl::GotResponseToLockMouseRequest(bool allowed) {
if (!GuestMode::IsCrossProcessFrameGuest(GetWebContents()) &&
GetBrowserPluginGuest())
return GetBrowserPluginGuest()->LockMouse(allowed);
if (mouse_lock_widget_) {
if (mouse_lock_widget_->delegate()->GetAsWebContents() != this) {
return mouse_lock_widget_->delegate()
->GetAsWebContents()
->GotResponseToLockMouseRequest(allowed);
}
if (mouse_lock_widget_->GotResponseToLockMouseRequest(allowed))
return true;
}
for (WebContentsImpl* current = this; current;
current = current->GetOuterWebContents()) {
current->mouse_lock_widget_ = nullptr;
}
return false;
}
bool WebContentsImpl::GotResponseToKeyboardLockRequest(bool allowed) {
if (!keyboard_lock_widget_)
return false;
if (keyboard_lock_widget_->delegate()->GetAsWebContents() != 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 = frame_tree_.root()->opener();
return opener_ftn ? opener_ftn->current_frame_host() : nullptr;
}
bool WebContentsImpl::HasOriginalOpener() {
return GetOriginalOpener() != nullptr;
}
RenderFrameHostImpl* WebContentsImpl::GetOriginalOpener() {
FrameTreeNode* opener_ftn = frame_tree_.root()->original_opener();
return opener_ftn ? opener_ftn->current_frame_host() : nullptr;
}
void WebContentsImpl::DidChooseColorInColorChooser(SkColor color) {
color_chooser_->DidChooseColorInColorChooser(color);
}
void WebContentsImpl::DidEndColorChooser() {
color_chooser_.reset();
}
int WebContentsImpl::DownloadImage(
const GURL& url,
bool is_favicon,
uint32_t max_bitmap_size,
bool bypass_cache,
WebContents::ImageDownloadCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
static int next_image_download_id = 0;
const mojo::Remote<blink::mojom::ImageDownloader>& mojo_image_downloader =
GetMainFrame()->GetMojoImageDownloader();
const int download_id = ++next_image_download_id;
if (!mojo_image_downloader) {
// 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.
base::PostTask(
FROM_HERE, {BrowserThread::UI},
base::BindOnce(&WebContentsImpl::OnDidDownloadImage,
weak_factory_.GetWeakPtr(), std::move(callback),
download_id, url, 400, std::vector<SkBitmap>(),
std::vector<gfx::Size>()));
return download_id;
}
mojo_image_downloader->DownloadImage(
url, is_favicon, max_bitmap_size, bypass_cache,
base::BindOnce(&WebContentsImpl::OnDidDownloadImage,
weak_factory_.GetWeakPtr(), std::move(callback),
download_id, url));
return download_id;
}
void WebContentsImpl::Find(int request_id,
const base::string16& search_text,
blink::mojom::FindOptionsPtr options) {
// Cowardly refuse to search for no text.
if (search_text.empty()) {
NOTREACHED();
return;
}
GetOrCreateFindRequestManager()->Find(request_id, search_text,
std::move(options));
}
void WebContentsImpl::StopFinding(StopFindAction action) {
if (FindRequestManager* manager = GetFindRequestManager())
manager->StopFinding(action);
}
bool WebContentsImpl::WasEverAudible() {
return was_ever_audible_;
}
void WebContentsImpl::GetManifest(GetManifestCallback callback) {
manifest_manager_host_->GetManifest(std::move(callback));
}
void WebContentsImpl::ExitFullscreen(bool will_cause_resize) {
// Clean up related state and initiate the fullscreen exit.
GetRenderViewHost()->GetWidget()->RejectMouseLockOrUnlockIfNecessary();
ExitFullscreenMode(will_cause_resize);
}
void WebContentsImpl::ForSecurityDropFullscreen() {
// There are two chains of WebContents to kick out of fullscreen.
//
// Chain 1, the inner/outer WebContents chain. If an inner WebContents has
// done something that requires the browser to drop fullscreen, drop
// fullscreen from it and any outer WebContents that may be in fullscreen.
//
// Chain 2, the opener WebContents chain. If a WebContents has done something
// that requires the browser to drop fullscreen, drop fullscreen from any
// WebContents that was involved in the chain of opening it.
//
// Note that these two chains don't interact, as only a top-level WebContents
// can have an opener. This simplifies things.
WebContents* web_contents = this;
while (web_contents) {
if (web_contents->IsFullscreenForCurrentTab())
web_contents->ExitFullscreen(true);
if (web_contents->HasOriginalOpener())
web_contents = FromRenderFrameHost(web_contents->GetOriginalOpener());
else
web_contents = web_contents->GetOuterWebContents();
}
}
void WebContentsImpl::ResumeLoadingCreatedWebContents() {
if (delayed_load_url_params_.get()) {
DCHECK(!delayed_open_url_params_);
controller_.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;
}
// Resume blocked requests for both the RenderViewHost and RenderFrameHost.
// TODO(brettw): It seems bogus to reach into here and initialize the host.
if (is_resume_pending_) {
is_resume_pending_ = false;
GetRenderViewHost()->GetWidget()->Init();
GetMainFrame()->Init();
}
}
bool WebContentsImpl::FocusLocationBarByDefault() {
if (should_focus_location_bar_by_default_)
return true;
return delegate_ && delegate_->ShouldFocusLocationBarByDefault(this);
}
void WebContentsImpl::SetFocusToLocationBar() {
if (delegate_)
delegate_->SetFocusToLocationBar();
}
void WebContentsImpl::DidStartNavigation(NavigationHandle* navigation_handle) {
TRACE_EVENT1("navigation", "WebContentsImpl::DidStartNavigation",
"navigation_handle", navigation_handle);
for (auto& observer : observers_)
observer.DidStartNavigation(navigation_handle);
if (display_cutout_host_impl_)
display_cutout_host_impl_->DidStartNavigation(navigation_handle);
if (navigation_handle->IsInMainFrame()) {
// 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_ =
controller_.IsInitialNavigation() &&
!navigation_handle->IsRendererInitiated() &&
navigation_handle->GetURL() == url::kAboutBlankURL;
}
}
void WebContentsImpl::DidRedirectNavigation(
NavigationHandle* navigation_handle) {
TRACE_EVENT1("navigation", "WebContentsImpl::DidRedirectNavigation",
"navigation_handle", navigation_handle);
for (auto& observer : observers_)
observer.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);
for (auto& observer : observers_)
observer.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 because unlike this method, SubresourceResponseStarted
// does not get called on network errors.
if (navigation_handle->IsInMainFrame() &&
navigation_handle->GetNetErrorCode() == net::OK) {
controller_.ssl_manager()->DidStartResourceResponse(
navigation_handle->GetURL(),
navigation_handle->GetSSLInfo().has_value()
? net::IsCertStatusError(
navigation_handle->GetSSLInfo()->cert_status)
: false);
}
SetNotWaitingForResponse();
}
void WebContentsImpl::DidFinishNavigation(NavigationHandle* navigation_handle) {
TRACE_EVENT1("navigation", "WebContentsImpl::DidFinishNavigation",
"navigation_handle", navigation_handle);
for (auto& observer : observers_)
observer.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();
}
}
if (navigation_handle->IsInMainFrame()) {
last_committed_source_id_including_same_document_ =
ukm::ConvertToSourceId(navigation_handle->GetNavigationId(),
ukm::SourceIdType::NAVIGATION_ID);
if (!navigation_handle->IsSameDocument()) {
was_ever_audible_ = false;
last_committed_source_id_ =
last_committed_source_id_including_same_document_;
}
}
}
// 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->IsInMainFrame() && first_navigation_completed_)
RecordMaxFrameCountUMA(max_loaded_frame_count_);
// If navigation has successfully finished in the main frame, set
// |first_navigation_completed_| to true so that we will record
// |max_loaded_frame_count_| above when future main frame navigations finish.
if (navigation_handle->IsInMainFrame() && !navigation_handle->IsErrorPage()) {
first_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_ =
GetMainFrame()->frame_tree_node()->GetFrameTreeSize();
}
}
void WebContentsImpl::DidFailLoadWithError(
RenderFrameHostImpl* render_frame_host,
const GURL& url,
int error_code,
const base::string16& error_description) {
for (auto& observer : observers_) {
observer.DidFailLoad(render_frame_host, url, error_code, error_description);
}
}
void WebContentsImpl::NotifyChangedNavigationState(
InvalidateTypes changed_flags) {
NotifyNavigationStateChanged(changed_flags);
}
void WebContentsImpl::DidStartNavigationToPendingEntry(const GURL& url,
ReloadType reload_type) {
// Notify observers about navigation.
for (auto& observer : observers_)
observer.DidStartNavigationToPendingEntry(url, reload_type);
}
bool WebContentsImpl::ShouldTransferNavigation(bool is_main_frame_navigation) {
if (!delegate_)
return true;
return delegate_->ShouldTransferNavigation(is_main_frame_navigation);
}
bool WebContentsImpl::ShouldPreserveAbortedURLs() {
if (!delegate_)
return false;
return delegate_->ShouldPreserveAbortedURLs(this);
}
void WebContentsImpl::DidNavigateMainFramePreCommit(
bool navigation_is_within_page) {
// 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 (IsFullscreenForCurrentTab())
ExitFullscreen(false);
DCHECK(!IsFullscreenForCurrentTab());
// Clean up keyboard lock state when navigating.
CancelKeyboardLock(keyboard_lock_widget_);
}
void WebContentsImpl::DidNavigateMainFramePostCommit(
RenderFrameHostImpl* render_frame_host,
const LoadCommittedDetails& details,
const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
if (details.is_navigation_to_different_page()) {
// 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*>(GetRenderWidgetHostView());
if (rwhvb)
rwhvb->OnDidNavigateMainFrameToNewPage();
}
if (delegate_)
delegate_->DidNavigateMainFramePostCommit(this);
view_->SetOverscrollControllerEnabled(CanOverscrollContent());
if (!details.is_same_document && GetInnerWebContents().empty())
had_inner_webcontents_ = false;
if (details.is_navigation_to_different_page() &&
GetRenderViewHost()->did_first_visually_non_empty_paint()) {
// This event will not fire again if the page is restored from the
// BackForwardCache. So fire it ourselves if needed.
DidFirstVisuallyNonEmptyPaint(GetRenderViewHost());
}
if (GetRenderViewHost()->theme_color() != last_sent_theme_color_) {
// This event will not fire again if the page is restored from the
// BackForwardCache. So fire it ourselves if needed.
OnThemeColorChanged(GetRenderViewHost());
}
}
void WebContentsImpl::DidNavigateAnyFramePostCommit(
RenderFrameHostImpl* render_frame_host,
const LoadCommittedDetails& details,
const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
// Now that something has committed, we don't need to track whether the
// initial page has been accessed.
has_accessed_initial_document_ = false;
// If we navigate off the page, close all JavaScript dialogs.
if (!details.is_same_document)
CancelActiveAndPendingDialogs();
// If this is a user-initiated navigation, start allowing JavaScript dialogs
// again.
if (params.gesture == NavigationGestureUser && dialog_manager_) {
dialog_manager_->CancelDialogs(this, /*reset_state=*/true);
}
}
void WebContentsImpl::SetMainFrameMimeType(const std::string& mime_type) {
contents_mime_type_ = mime_type;
}
bool WebContentsImpl::CanOverscrollContent() const {
// Disable overscroll when touch emulation is on. See crbug.com/369938.
if (force_disable_overscroll_content_)
return false;
if (delegate_)
return delegate_->CanOverscrollContent();
return false;
}
void WebContentsImpl::OnThemeColorChanged(RenderViewHostImpl* source) {
if (source->did_first_visually_non_empty_paint() &&
last_sent_theme_color_ != source->theme_color()) {
for (auto& observer : observers_)
observer.DidChangeThemeColor(source->theme_color());
last_sent_theme_color_ = source->theme_color();
}
}
void WebContentsImpl::OnDidLoadResourceFromMemoryCache(
RenderFrameHostImpl* source,
const GURL& url,
const std::string& http_method,
const std::string& mime_type,
ResourceType resource_type) {
for (auto& observer : observers_)
observer.DidLoadResourceFromMemoryCache(url, mime_type, resource_type);
if (url.is_valid() && url.SchemeIsHTTPOrHTTPS()) {
StoragePartition* partition = source->GetProcess()->GetStoragePartition();
partition->GetNetworkContext()->NotifyExternalCacheHit(
url, http_method, source->network_isolation_key());
}
}
void WebContentsImpl::DidDisplayInsecureContent() {
controller_.ssl_manager()->DidDisplayMixedContent();
}
void WebContentsImpl::DidContainInsecureFormAction() {
controller_.ssl_manager()->DidContainInsecureFormAction();
}
void WebContentsImpl::OnDidRunInsecureContent(RenderFrameHostImpl* source,
const GURL& security_origin,
const GURL& target_url) {
// TODO(nick, estark): Should we call FilterURL using |source|'s process on
// these parameters? |target_url| seems unused, except for a log message. And
// |security_origin| might be replaceable with the origin of the main frame.
DidRunInsecureContent(security_origin, target_url);
}
void WebContentsImpl::DidRunInsecureContent(const GURL& security_origin,
const GURL& target_url) {
LOG(WARNING) << security_origin << " ran insecure content from "
<< target_url.possibly_invalid_spec();
RecordAction(base::UserMetricsAction("SSL.RanInsecureContent"));
if (base::EndsWith(security_origin.spec(), kDotGoogleDotCom,
base::CompareCase::INSENSITIVE_ASCII))
RecordAction(base::UserMetricsAction("SSL.RanInsecureContentGoogle"));
controller_.ssl_manager()->DidRunMixedContent(security_origin);
}
void WebContentsImpl::PassiveInsecureContentFound(const GURL& resource_url) {
if (delegate_) {
delegate_->PassiveInsecureContentFound(resource_url);
}
}
bool WebContentsImpl::ShouldAllowRunningInsecureContent(
WebContents* web_contents,
bool allowed_per_prefs,
const url::Origin& origin,
const GURL& resource_url) {
if (delegate_) {
return delegate_->ShouldAllowRunningInsecureContent(
web_contents, allowed_per_prefs, origin, resource_url);
}
return allowed_per_prefs;
}
void WebContentsImpl::ViewSource(RenderFrameHostImpl* 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 =
static_cast<NavigationEntryImpl*>(frame->frame_tree_node()
->navigator()
->GetController()
->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.
ForSecurityDropFullscreen();
// 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 = nullptr;
// 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;
base::Optional<url::Origin> initiator_for_view_source = base::nullopt;
// Do not restore title, derive it from the url.
base::string16 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);
navigation_entry->SetVirtualURL(GURL(content::kViewSourceScheme +
std::string(":") +
frame_entry->url().spec()));
navigation_entry->set_network_isolation_key(
net::NetworkIsolationKey(GetMainFrame()->GetLastCommittedOrigin(),
frame->GetLastCommittedOrigin()));
// 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 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::CURRENT_SESSION,
&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),
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::SubresourceResponseStarted(const GURL& url,
net::CertStatus cert_status) {
controller_.ssl_manager()->DidStartResourceResponse(url, cert_status);
SetNotWaitingForResponse();
}
void WebContentsImpl::ResourceLoadComplete(
RenderFrameHost* render_frame_host,
const GlobalRequestID& request_id,
mojom::ResourceLoadInfoPtr resource_load_info) {
for (auto& observer : observers_) {
observer.ResourceLoadComplete(render_frame_host, request_id,
*resource_load_info);
}
}
void WebContentsImpl::PrintCrossProcessSubframe(
const gfx::Rect& rect,
int document_cookie,
RenderFrameHost* 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);
}
#if defined(OS_ANDROID)
base::android::ScopedJavaLocalRef<jobject>
WebContentsImpl::GetJavaRenderFrameHostDelegate() {
return GetJavaWebContents();
}
#endif
void WebContentsImpl::OnDidDisplayContentWithCertificateErrors(
RenderFrameHostImpl* source) {
controller_.ssl_manager()->DidDisplayContentWithCertErrors();
}
void WebContentsImpl::OnDidRunContentWithCertificateErrors(
RenderFrameHostImpl* source) {
// TODO(nick, estark): Do we need to consider |source| here somehow?
NavigationEntry* entry = controller_.GetVisibleEntry();
if (!entry)
return;
// TODO(estark): check that this does something reasonable for
// about:blank and sandboxed origins. https://crbug.com/609527
controller_.ssl_manager()->DidRunContentWithCertErrors(
entry->GetURL().GetOrigin());
}
void WebContentsImpl::DOMContentLoaded(RenderFrameHost* render_frame_host) {
for (auto& observer : observers_)
observer.DOMContentLoaded(render_frame_host);
}
void WebContentsImpl::OnDidFinishLoad(RenderFrameHostImpl* source,
const GURL& url) {
GURL validated_url(url);
source->GetProcess()->FilterURL(false, &validated_url);
for (auto& observer : observers_)
observer.DidFinishLoad(source, validated_url);
size_t tree_size = frame_tree_.root()->GetFrameTreeSize();
if (max_loaded_frame_count_ < tree_size)
max_loaded_frame_count_ = tree_size;
if (!source->GetParent())
UMA_HISTOGRAM_COUNTS_1000("Navigation.MainFrame.FrameCount", tree_size);
}
void WebContentsImpl::OnGoToEntryAtOffset(RenderFrameHostImpl* source,
int offset,
bool has_user_gesture) {
// Non-user initiated navigations coming from the renderer should be ignored
// if there is an ongoing browser-initiated navigation.
// See https://crbug.com/879965.
// TODO(arthursonzogni): See if this should check for ongoing navigations in
// the frame(s) affected by the session history navigation, rather than just
// the main frame.
if (!has_user_gesture) {
NavigationRequest* ongoing_navigation_request =
frame_tree_.root()->navigation_request();
if (ongoing_navigation_request &&
ongoing_navigation_request->browser_initiated()) {
return;
}
}
// All frames are allowed to navigate the global history.
if (!delegate_ || delegate_->OnGoToEntryOffset(offset)) {
if (source->IsSandboxed(blink::WebSandboxFlags::kTopNavigation)) {
// Keep track of whether this is a session history from a sandboxed iframe
// with top level navigation disallowed.
controller_.GoToOffsetInSandboxedFrame(offset,
source->GetFrameTreeNodeId());
} else {
controller_.GoToOffset(offset);
}
}
}
void WebContentsImpl::OnPageScaleFactorChanged(RenderViewHostImpl* source,
float page_scale_factor) {
#if !defined(OS_ANDROID)
// While page scale factor is used on mobile, this PageScaleFactorIsOne logic
// is only needed on desktop.
bool is_one = page_scale_factor == 1.f;
if (is_one != page_scale_factor_is_one_) {
page_scale_factor_is_one_ = is_one;
HostZoomMapImpl* host_zoom_map =
static_cast<HostZoomMapImpl*>(HostZoomMap::GetForWebContents(this));
if (host_zoom_map) {
host_zoom_map->SetPageScaleFactorIsOneForView(
source->GetProcess()->GetID(), source->GetRoutingID(),
page_scale_factor_is_one_);
}
}
#endif // !defined(OS_ANDROID)
for (auto& observer : observers_)
observer.OnPageScaleFactorChanged(page_scale_factor);
}
void WebContentsImpl::OnTextAutosizerPageInfoChanged(
RenderViewHostImpl* source,
const blink::WebTextAutosizerPageInfo& page_info) {
// Keep a copy of |page_info| in case we create a new RenderView before
// the next update.
text_autosizer_page_info_ = page_info;
frame_tree_.root()->render_manager()->SendPageMessage(
new PageMsg_UpdateTextAutosizerPageInfoForRemoteMainFrames(
MSG_ROUTING_NONE, page_info),
source->GetSiteInstance());
}
void WebContentsImpl::EnumerateDirectory(
RenderFrameHost* render_frame_host,
std::unique_ptr<FileSelectListener> listener,
const base::FilePath& directory_path) {
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,
const base::string16& title,
bool user_gesture) {
// TODO(nick): Should we consider |source| here or pass it to the delegate?
// TODO(nick): Do we need to apply FilterURL to |url|?
if (!delegate_)
return;
if (!AreValidRegisterProtocolHandlerArguments(
protocol, url, source->GetLastCommittedOrigin())) {
ReceivedBadMessage(source->GetProcess(),
bad_message::REGISTER_PROTOCOL_HANDLER_INVALID_URL);
return;
}
delegate_->RegisterProtocolHandler(this, protocol, url, user_gesture);
}
void WebContentsImpl::UnregisterProtocolHandler(RenderFrameHostImpl* source,
const std::string& protocol,
const GURL& url,
bool user_gesture) {
// TODO(nick): Should we consider |source| here or pass it to the delegate?
// TODO(nick): Do we need to apply FilterURL to |url|?
if (!delegate_)
return;
if (!AreValidRegisterProtocolHandlerArguments(
protocol, url, source->GetLastCommittedOrigin())) {
ReceivedBadMessage(source->GetProcess(),
bad_message::REGISTER_PROTOCOL_HANDLER_INVALID_URL);
return;
}
delegate_->UnregisterProtocolHandler(this, protocol, url, user_gesture);
}
void WebContentsImpl::OnUpdatePageImportanceSignals(
RenderFrameHostImpl* source,
const PageImportanceSignals& signals) {
// TODO(nick, kouhei): Fix this for oopifs; currently all frames' state gets
// written to this one field.
page_importance_signals_ = signals;
}
void WebContentsImpl::OnDomOperationResponse(RenderFrameHostImpl* source,
const std::string& json_string) {
// TODO(nick, lukasza): The notification below should probably be updated to
// include |source|.
std::string json = json_string;
NotificationService::current()->Notify(NOTIFICATION_DOM_OPERATION_RESPONSE,
Source<WebContents>(this),
Details<std::string>(&json));
}
void WebContentsImpl::OnAppCacheAccessed(const GURL& manifest_url,
bool blocked_by_policy) {
// TODO(nick): Should we consider |source| here? Should we call FilterURL on
// |manifest_url|?
// Notify observers about navigation.
for (auto& observer : observers_)
observer.AppCacheAccessed(manifest_url, blocked_by_policy);
}
void WebContentsImpl::OnColorChooserFactoryRequest(
mojo::PendingReceiver<blink::mojom::ColorChooserFactory> receiver) {
color_chooser_factory_receivers_.Add(this, std::move(receiver));
}
void WebContentsImpl::OpenColorChooser(
mojo::PendingReceiver<blink::mojom::ColorChooser> chooser_receiver,
mojo::PendingRemote<blink::mojom::ColorChooserClient> client,
SkColor color,
std::vector<blink::mojom::ColorSuggestionPtr> suggestions) {
content::ColorChooser* new_color_chooser =
delegate_ ? delegate_->OpenColorChooser(this, color, suggestions)
: nullptr;
if (!new_color_chooser)
return;
color_chooser_.reset();
color_chooser_ = std::make_unique<ColorChooser>(
new_color_chooser, std::move(chooser_receiver), std::move(client));
}
#if BUILDFLAG(ENABLE_PLUGINS)
void WebContentsImpl::OnPepperInstanceCreated(RenderFrameHostImpl* source,
int32_t pp_instance) {
for (auto& observer : observers_)
observer.PepperInstanceCreated();
pepper_playback_observer_->PepperInstanceCreated(source, pp_instance);
}
void WebContentsImpl::OnPepperInstanceDeleted(RenderFrameHostImpl* source,
int32_t pp_instance) {
for (auto& observer : observers_)
observer.PepperInstanceDeleted();
pepper_playback_observer_->PepperInstanceDeleted(source, pp_instance);
}
void WebContentsImpl::OnPepperPluginHung(RenderFrameHostImpl* source,
int plugin_child_id,
const base::FilePath& path,
bool is_hung) {
UMA_HISTOGRAM_COUNTS_1M("Pepper.PluginHung", 1);
for (auto& observer : observers_)
observer.PluginHungStatusChanged(plugin_child_id, path, is_hung);
}
void WebContentsImpl::OnPepperStartsPlayback(RenderFrameHostImpl* source,
int32_t pp_instance) {
pepper_playback_observer_->PepperStartsPlayback(source, pp_instance);
}
void WebContentsImpl::OnPepperStopsPlayback(RenderFrameHostImpl* source,
int32_t pp_instance) {
pepper_playback_observer_->PepperStopsPlayback(source, pp_instance);
}
void WebContentsImpl::OnPluginCrashed(RenderFrameHostImpl* source,
const base::FilePath& plugin_path,
base::ProcessId plugin_pid) {
// TODO(nick): Eliminate the |plugin_pid| parameter, which can't be trusted,
// and is only used by BlinkTestController.
for (auto& observer : observers_)
observer.PluginCrashed(plugin_path, plugin_pid);
}
void WebContentsImpl::OnRequestPpapiBrokerPermission(
RenderViewHostImpl* source,
int ppb_broker_route_id,
const GURL& url,
const base::FilePath& plugin_path) {
base::OnceCallback<void(bool)> permission_result_callback = base::BindOnce(
&WebContentsImpl::SendPpapiBrokerPermissionResult, base::Unretained(this),
source->GetProcess()->GetID(), ppb_broker_route_id);
if (!delegate_) {
std::move(permission_result_callback).Run(false);
return;
}
delegate_->RequestPpapiBrokerPermission(
this, url, plugin_path, std::move(permission_result_callback));
}
void WebContentsImpl::SendPpapiBrokerPermissionResult(int process_id,
int ppb_broker_route_id,
bool result) {
RenderProcessHost* rph = RenderProcessHost::FromID(process_id);
if (rph) {
// TODO(nick): Convert this from ViewMsg_ to a Ppapi msg, since it
// is not routed to a RenderView.
rph->Send(
new ViewMsg_PpapiBrokerPermissionResult(ppb_broker_route_id, result));
}
}
void WebContentsImpl::OnBrowserPluginMessage(RenderFrameHost* render_frame_host,
const IPC::Message& message) {
CHECK(!browser_plugin_embedder_);
CreateBrowserPluginEmbedderIfNecessary();
browser_plugin_embedder_->OnMessageReceived(message, render_frame_host);
}
#endif // BUILDFLAG(ENABLE_PLUGINS)
void WebContentsImpl::OnUpdateFaviconURL(
RenderFrameHostImpl* source,
const std::vector<FaviconURL>& candidates) {
// Ignore favicons for non-main frame.
if (source->GetParent()) {
NOTREACHED();
return;
}
// 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->IsCurrent())
return;
for (auto& observer : observers_)
observer.DidUpdateFaviconURL(candidates);
}
void WebContentsImpl::SetIsOverlayContent(bool is_overlay_content) {
is_overlay_content_ = is_overlay_content;
}
void WebContentsImpl::DidFirstVisuallyNonEmptyPaint(
RenderViewHostImpl* source) {
// TODO(nick): When this is ported to FrameHostMsg_, we should only listen if
// |source| is the main frame.
for (auto& observer : observers_)
observer.DidFirstVisuallyNonEmptyPaint();
if (source->theme_color() != last_sent_theme_color_) {
// Theme color should have updated by now if there was one.
for (auto& observer : observers_)
observer.DidChangeThemeColor(source->theme_color());
last_sent_theme_color_ = source->theme_color();
}
}
bool WebContentsImpl::IsPortal() const {
return portal();
}
void WebContentsImpl::NotifyBeforeFormRepostWarningShow() {
for (auto& observer : observers_)
observer.BeforeFormRepostWarningShow();
}
void WebContentsImpl::ActivateAndShowRepostFormWarningDialog() {
Activate();
if (delegate_)
delegate_->ShowRepostFormWarningDialog(this);
}
bool WebContentsImpl::HasAccessedInitialDocument() {
return has_accessed_initial_document_;
}
void WebContentsImpl::UpdateTitleForEntry(NavigationEntry* entry,
const base::string16& title) {
base::string16 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.
if (entry) {
if (final_title == entry->GetTitle())
return; // 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 {
if (page_title_when_no_navigation_entry_ == final_title)
return; // Nothing changed, don't bother.
page_title_when_no_navigation_entry_ = final_title;
}
// Lastly, set the title for the view.
view_->SetPageTitle(final_title);
for (auto& observer : observers_)
observer.TitleWasSet(entry);
// Broadcast notifications when the UI should be updated.
if (entry == controller_.GetEntryAtOffset(0))
NotifyNavigationStateChanged(INVALIDATE_TYPE_TITLE);
}
void WebContentsImpl::SendChangeLoadProgress() {
loading_last_progress_update_ = base::TimeTicks::Now();
for (auto& observer : observers_)
observer.LoadProgressChanged(frame_tree_.load_progress());
}
void WebContentsImpl::ResetLoadProgressState() {
frame_tree_.ResetLoadProgress();
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 to_different_document,
bool due_to_interstitial,
LoadNotificationDetails* details) {
if (is_being_destroyed_)
return;
// Do not send notifications about loading changes in the FrameTree while the
// interstitial page is pausing the throbber.
if (ShowingInterstitialPage() && interstitial_page_->pause_throbber() &&
!due_to_interstitial) {
return;
}
bool is_loading = IsLoading();
if (!is_loading) {
load_state_ = net::LoadStateWithParam(net::LOAD_STATE_IDLE,
base::string16());
load_state_host_.clear();
upload_size_ = 0;
upload_position_ = 0;
}
GetRenderManager()->SetIsLoading(is_loading);
waiting_for_response_ = is_loading;
is_load_to_different_document_ = to_different_document;
if (delegate_)
delegate_->LoadingStateChanged(this, to_different_document);
NotifyNavigationStateChanged(INVALIDATE_TYPE_LOAD);
std::string url = (details ? details->url.possibly_invalid_spec() : "NULL");
if (is_loading) {
TRACE_EVENT_ASYNC_BEGIN2("browser,navigation", "WebContentsImpl Loading",
this, "URL", url, "Main FrameTreeNode id",
GetFrameTree()->root()->frame_tree_node_id());
for (auto& observer : observers_)
observer.DidStartLoading();
} else {
TRACE_EVENT_ASYNC_END1("browser,navigation", "WebContentsImpl Loading",
this, "URL", url);
for (auto& observer : observers_)
observer.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>(&controller_), det);
}
void WebContentsImpl::NotifyViewSwapped(RenderViewHost* old_host,
RenderViewHost* new_host) {
// 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;
for (auto& observer : observers_)
observer.RenderViewHostChanged(old_host, new_host);
view_->RenderViewHostChanged(old_host, new_host);
// 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(RenderFrameHost* old_host,
RenderFrameHost* new_host,
bool is_main_frame) {
#if defined(OS_ANDROID)
// Copy importance from |old_host| if |new_host| is a main frame.
if (old_host && !new_host->GetParent()) {
static_cast<RenderFrameHostImpl*>(new_host)
->GetRenderWidgetHost()
->SetImportance(static_cast<RenderFrameHostImpl*>(old_host)
->GetRenderWidgetHost()
->importance());
}
#endif
for (auto& observer : observers_)
observer.RenderFrameHostChanged(old_host, new_host);
}
// TODO(avi): Remove this entire function because this notification is already
// covered by two observer functions. http://crbug.com/170921
void WebContentsImpl::NotifyDisconnected() {
if (!notify_disconnection_)
return;
notify_disconnection_ = false;
NotificationService::current()->Notify(
NOTIFICATION_WEB_CONTENTS_DISCONNECTED,
Source<WebContents>(this),
NotificationService::NoDetails());
}
void WebContentsImpl::NotifyNavigationEntryCommitted(
const LoadCommittedDetails& load_details) {
for (auto& observer : observers_)
observer.NavigationEntryCommitted(load_details);
}
void WebContentsImpl::NotifyNavigationEntryChanged(
const EntryChangedDetails& change_details) {
for (auto& observer : observers_)
observer.NavigationEntryChanged(change_details);
}
void WebContentsImpl::NotifyNavigationListPruned(
const PrunedDetails& pruned_details) {
for (auto& observer : observers_)
observer.NavigationListPruned(pruned_details);
}
void WebContentsImpl::NotifyNavigationEntriesDeleted() {
for (auto& observer : observers_)
observer.NavigationEntriesDeleted();
}
void WebContentsImpl::OnAssociatedInterfaceRequest(
RenderFrameHost* render_frame_host,
const std::string& interface_name,
mojo::ScopedInterfaceEndpointHandle handle) {
auto it = binding_sets_.find(interface_name);
if (it != binding_sets_.end())
it->second->OnRequestForFrame(render_frame_host, std::move(handle));
}
void WebContentsImpl::OnInterfaceRequest(
RenderFrameHost* render_frame_host,
const std::string& interface_name,
mojo::ScopedMessagePipeHandle* interface_pipe) {
binders_.TryBind(interface_name, interface_pipe);
for (auto& observer : observers_) {
observer.OnInterfaceRequestFromFrame(render_frame_host, interface_name,
interface_pipe);
if (!interface_pipe->is_valid())
break;
}
}
void WebContentsImpl::OnDidBlockNavigation(
const GURL& blocked_url,
const GURL& initiator_url,
blink::NavigationBlockedReason reason) {
if (delegate_)
delegate_->OnDidBlockNavigation(this, blocked_url, initiator_url, reason);
}
const GURL& WebContentsImpl::GetMainFrameLastCommittedURL() {
return GetLastCommittedURL();
}
void WebContentsImpl::RenderFrameCreated(RenderFrameHost* render_frame_host) {
for (auto& observer : observers_)
observer.RenderFrameCreated(render_frame_host);
UpdateAccessibilityModeOnFrame(render_frame_host);
if (display_cutout_host_impl_)
display_cutout_host_impl_->RenderFrameCreated(render_frame_host);
if (!render_frame_host->IsRenderFrameLive() || render_frame_host->GetParent())
return;
NavigationEntry* entry = controller_.GetPendingEntry();
if (entry && entry->IsViewSourceMode()) {
// Put the renderer in view source mode.
render_frame_host->Send(
new FrameMsg_EnableViewSourceMode(render_frame_host->GetRoutingID()));
}
}
void WebContentsImpl::RenderFrameDeleted(RenderFrameHost* render_frame_host) {
if (IsBeingDestroyed() && !render_frame_host->GetParent() &&
first_navigation_completed_ &&
!static_cast<RenderFrameHostImpl*>(render_frame_host)
->is_in_back_forward_cache()) {
// Main frame has been deleted because WebContents is being destroyed.
// Note that we aren't recording this here when the main frame is in the
// back-forward cache because that means we've actually already navigated
// away from it (and we got to this point because the WebContents is
// deleted), which means |max_loaded_frame_count_| is already overwritten.
// The |max_loaded_frame_count_| value will instead be recorded from within
// |WebContentsImpl::DidFinishNavigation()|.
RecordMaxFrameCountUMA(max_loaded_frame_count_);
}
is_notifying_observers_ = true;
for (auto& observer : observers_)
observer.RenderFrameDeleted(render_frame_host);
is_notifying_observers_ = false;
#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 */);
}
void WebContentsImpl::ShowContextMenu(RenderFrameHost* render_frame_host,
const ContextMenuParams& params) {
// 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;
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.
base::string16 NormalizeLineBreaks(const base::string16& source) {
static const base::NoDestructor<base::string16> kReturnNewline(
base::ASCIIToUTF16("\r\n"));
static const base::NoDestructor<base::string16> kReturn(
base::ASCIIToUTF16("\r"));
static const base::NoDestructor<base::string16> kNewline(
base::ASCIIToUTF16("\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(RenderFrameHost* render_frame_host,
const base::string16& message,
const base::string16& default_prompt,
JavaScriptDialogType dialog_type,
IPC::Message* reply_msg) {
// 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 =
static_cast<RenderFrameHostImpl*>(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
ForSecurityDropFullscreen();
auto callback =
base::BindOnce(&WebContentsImpl::OnDialogClosed, base::Unretained(this),
render_frame_host->GetProcess()->GetID(),
render_frame_host->GetRoutingID(), reply_msg);
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_navigation_deferrer_ =
std::make_unique<JavaScriptDialogNavigationDeferrer>();
// Suppress JavaScript dialogs when requested. Also suppress messages when
// showing an interstitial as it's shown over the previous page and we don't
// want the hidden page's dialogs to interfere with the interstitial.
bool should_suppress = ShowingInterstitialPage() ||
(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 (suppress_this_message) {
std::move(callback).Run(true, false, base::string16());
return;
}
scoped_refptr<CloseDialogCallbackWrapper> wrapper =
new CloseDialogCallbackWrapper(std::move(callback));
is_showing_javascript_dialog_ = true;
base::string16 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, base::string16());
}
}
void WebContentsImpl::RunBeforeUnloadConfirm(
RenderFrameHost* render_frame_host,
bool is_reload,
IPC::Message* reply_msg) {
// 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 =
static_cast<RenderFrameHostImpl*>(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
ForSecurityDropFullscreen();
RenderFrameHostImpl* rfhi =
static_cast<RenderFrameHostImpl*>(render_frame_host);
if (delegate_)
delegate_->WillRunBeforeUnloadConfirm();
auto callback =
base::BindOnce(&WebContentsImpl::OnDialogClosed, base::Unretained(this),
render_frame_host->GetProcess()->GetID(),
render_frame_host->GetRoutingID(), reply_msg);
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_navigation_deferrer_ =
std::make_unique<JavaScriptDialogNavigationDeferrer>();
bool should_suppress = ShowingInterstitialPage() || !rfhi->is_active() ||
(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, base::string16());
return;
}
is_showing_before_unload_dialog_ = true;
scoped_refptr<CloseDialogCallbackWrapper> wrapper =
new CloseDialogCallbackWrapper(std::move(callback));
GURL frame_url = rfhi->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,
std::unique_ptr<content::FileSelectListener> listener,
const blink::mojom::FileChooserParams& params) {
// Any explicit focusing of another window while this WebContents is in
// fullscreen can be used to confuse the user, so drop fullscreen.
ForSecurityDropFullscreen();
RenderFrameHostImpl* rfhi =
static_cast<RenderFrameHostImpl*>(render_frame_host);
if (devtools_instrumentation::InterceptFileChooser(rfhi, &listener, params))
return;
if (delegate_)
delegate_->RunFileChooser(render_frame_host, std::move(listener), params);
else
listener->FileSelectionCanceled();
}
WebContents* WebContentsImpl::GetAsWebContents() {
return this;
}
#if !defined(OS_ANDROID)
double WebContentsImpl::GetPendingPageZoomLevel() {
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));
}
#endif // !defined(OS_ANDROID)
bool WebContentsImpl::HideDownloadUI() const {
return is_overlay_content_;
}
bool WebContentsImpl::HasPersistentVideo() const {
return has_persistent_video_;
}
bool WebContentsImpl::IsSpatialNavigationDisabled() const {
return is_spatial_navigation_disabled_;
}
RenderFrameHostImpl* WebContentsImpl::GetPendingMainFrame() {
return GetRenderManager()->speculative_frame_host();
}
bool WebContentsImpl::HasActiveEffectivelyFullscreenVideo() const {
return media_web_contents_observer_->HasActiveEffectivelyFullscreenVideo();
}
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) {
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() {
if (auto* frame = GetFocusedFrame())
frame->ClearFocusedElement();
}
bool WebContentsImpl::IsNeverVisible() {
if (!delegate_)
return false;
return delegate_->IsNeverVisible(this);
}
RenderViewHostDelegateView* WebContentsImpl::GetDelegateView() {
return render_view_host_delegate_view_;
}
blink::mojom::RendererPreferences WebContentsImpl::GetRendererPrefs(
BrowserContext* browser_context) const {
return renderer_preferences_;
}
void WebContentsImpl::RemoveBrowserPluginEmbedder() {
browser_plugin_embedder_.reset();
}
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()->GetFrameTree());
return outer_node->parent()->current_frame_host();
}
WebContentsImpl* WebContentsImpl::GetOuterWebContents() {
if (GuestMode::IsCrossProcessFrameGuest(this))
return node_.outer_web_contents();
if (browser_plugin_guest_)
return browser_plugin_guest_->embedder_web_contents();
return node_.outer_web_contents();
}
std::vector<WebContents*> WebContentsImpl::GetInnerWebContents() {
std::vector<WebContents*> all_inner_contents;
if (browser_plugin_embedder_) {
BrowserPluginGuestManager* guest_manager =
GetBrowserContext()->GetGuestManager();
if (guest_manager) {
guest_manager->ForEachGuest(
this,
base::BindRepeating(&GetInnerWebContentsHelper, &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::GetFocusedWebContents() {
return GetOutermostWebContents()->node_.focused_web_contents();
}
bool WebContentsImpl::ContainsOrIsFocusedWebContents() {
for (WebContentsImpl* focused_contents = GetFocusedWebContents();
focused_contents;
focused_contents = focused_contents->GetOuterWebContents()) {
if (focused_contents == this)
return true;
}
return false;
}
WebContentsImpl* WebContentsImpl::GetOutermostWebContents() {
WebContentsImpl* root = this;
while (root->GetOuterWebContents())
root = root->GetOuterWebContents();
return root;
}
void WebContentsImpl::FocusOuterAttachmentFrameChain() {
WebContentsImpl* outer_contents = GetOuterWebContents();
if (!outer_contents)
return;
FrameTreeNode* outer_node =
FrameTreeNode::GloballyFindByID(GetOuterDelegateFrameTreeNodeId());
outer_contents->frame_tree_.SetFocusedFrame(outer_node, nullptr);
// For a browser initiated focus change, let embedding renderer know of the
// change. Otherwise, if the currently focused element is just across a
// process boundary in focus order, it will not be possible to move across
// that boundary. This is because the target element will already be focused
// (that renderer was not notified) and drop the event.
if (GetRenderManager()->GetProxyToOuterDelegate())
GetRenderManager()->GetProxyToOuterDelegate()->SetFocusedFrame();
outer_contents->FocusOuterAttachmentFrameChain();
}
void WebContentsImpl::InnerWebContentsCreated(WebContents* inner_web_contents) {
had_inner_webcontents_ = true;
for (auto& observer : observers_)
observer.InnerWebContentsCreated(inner_web_contents);
}
void WebContentsImpl::RenderViewCreated(RenderViewHost* render_view_host) {
if (delegate_)
view_->SetOverscrollControllerEnabled(CanOverscrollContent());
NotificationService::current()->Notify(
NOTIFICATION_WEB_CONTENTS_RENDER_VIEW_HOST_CREATED,
Source<WebContents>(this),
Details<RenderViewHost>(render_view_host));
view_->RenderViewCreated(render_view_host);
for (auto& observer : observers_)
observer.RenderViewCreated(render_view_host);
if (delegate_)
RenderFrameDevToolsAgentHost::WebContentsCreated(this);
}
void WebContentsImpl::RenderViewReady(RenderViewHost* 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;
bool was_crashed = IsCrashed();
SetIsCrashed(base::TERMINATION_STATUS_STILL_RUNNING, 0);
// Restore the focus to the tab (otherwise the focus will be on the top
// window).
if (was_crashed && !FocusLocationBarByDefault() &&
(!delegate_ || delegate_->ShouldFocusPageAfterCrash())) {
view_->Focus();
}
for (auto& observer : observers_)
observer.RenderViewReady();
view_->RenderViewReady();
}
void WebContentsImpl::RenderViewTerminated(RenderViewHost* rvh,
base::TerminationStatus status,
int error_code) {
if (rvh != GetRenderViewHost()) {
// The pending page's RenderViewHost is gone.
return;
}
// Ensure fullscreen mode is exited in the |delegate_| since a crashed
// renderer may not have made a clean exit.
if (IsFullscreenForCurrentTab())
ExitFullscreenMode(false);
// Ensure any video in Picture-in-Picture is exited in the |delegate_| since
// a crashed renderer may not have made a clean exit.
if (HasPictureInPictureVideo())
ExitPictureInPicture();
// Cancel any visible dialogs so they are not left dangling over the sad tab.
CancelActiveAndPendingDialogs();
audio_stream_monitor_.RenderProcessGone(rvh->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();
NotifyDisconnected();
SetIsCrashed(status, error_code);
for (auto& observer : observers_)
observer.RenderProcessGone(GetCrashedStatus());
}
void WebContentsImpl::RenderViewDeleted(RenderViewHost* rvh) {
for (auto& observer : observers_)
observer.RenderViewDeleted(rvh);
}
void WebContentsImpl::UpdateTargetURL(RenderViewHost* render_view_host,
const GURL& url) {
if (fullscreen_widget_routing_id_ != MSG_ROUTING_NONE) {
// If we're in flash fullscreen (i.e. Pepper plugin fullscreen) only update
// the url if it's from the fullscreen renderer.
RenderWidgetHostView* fs = GetFullscreenRenderWidgetHostView();
if (fs && fs->GetRenderWidgetHost() != render_view_host->GetWidget())
return;
}
// 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_view_host != view_that_set_last_target_url_)
return;
view_that_set_last_target_url_ = url.is_valid() ? render_view_host : nullptr;
if (delegate_)
delegate_->UpdateTargetURL(this, url);
}
void WebContentsImpl::ClearTargetURL() {
view_that_set_last_target_url_ = nullptr;
if (delegate_)
delegate_->UpdateTargetURL(this, GURL());
}
void WebContentsImpl::Close(RenderViewHost* rvh) {
#if defined(OS_MACOSX)
// 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::RequestSetBounds(const gfx::Rect& new_bounds) {
if (delegate_)
delegate_->SetContentsBounds(this, new_bounds);
}
void WebContentsImpl::DidStartLoading(FrameTreeNode* frame_tree_node,
bool to_different_document) {
LoadingStateChanged(frame_tree_node->IsMainFrame() && to_different_document,
false, 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() {
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 = controller_.GetLastCommittedEntry();
Navigator* navigator = frame_tree_.root()->navigator();
// 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) {
base::TimeDelta elapsed =
base::TimeTicks::Now() - navigator->GetCurrentLoadStart();
details.reset(new LoadNotificationDetails(
entry->GetVirtualURL(),
elapsed,
&controller_,
controller_.GetCurrentEntryIndex()));
}
LoadingStateChanged(true, false, details.get());
}
void WebContentsImpl::DidChangeLoadProgress() {
if (is_being_destroyed_)
return;
double load_progress = frame_tree_.load_progress();
// 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 =
base::TimeDelta::FromMilliseconds(kMinimumDelayBetweenLoadingUpdatesMS);
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;
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&WebContentsImpl::SendChangeLoadProgress,
loading_weak_factory_.GetWeakPtr()),
min_delay);
}
std::vector<std::unique_ptr<NavigationThrottle>>
WebContentsImpl::CreateThrottlesForNavigation(
NavigationHandle* navigation_handle) {
auto throttles = GetContentClient()->browser()->CreateThrottlesForNavigation(
navigation_handle);
// This is not a normal place to be adding a throttle. However, in the case
// javascript dialogs, related logic is present in the web_contents/ layer,
// and the purpose of the throttle is to ensure that navigation commits are
// deferred for the entire WebContents. Most throttles are either added by
// the embederrer outside of content/, or are per-frame and added by
// NavigationThrottleRunner.
std::unique_ptr<content::NavigationThrottle> dialog_throttle =
JavaScriptDialogNavigationThrottle::MaybeCreateThrottleFor(
navigation_handle);
if (dialog_throttle)
throttles.push_back(std::move(dialog_throttle));
return throttles;
}
std::unique_ptr<NavigationUIData> WebContentsImpl::GetNavigationUIData(
NavigationHandle* navigation_handle) {
return GetContentClient()->browser()->GetNavigationUIData(navigation_handle);
}
void WebContentsImpl::DidCancelLoading() {
controller_.DiscardNonCommittedEntries();
// Update the URL display.
NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
}
void WebContentsImpl::DidAccessInitialDocument() {
has_accessed_initial_document_ = true;
// We may have left a failed browser-initiated navigation in the address bar
// to let the user edit it and try again. Clear it now that content might
// show up underneath it.
if (!IsLoading() && controller_.GetPendingEntry())
controller_.DiscardPendingEntry(false);
// Update the URL display.
NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
}
void WebContentsImpl::DidChangeName(RenderFrameHost* render_frame_host,
const std::string& name) {
for (auto& observer : observers_)
observer.FrameNameChanged(render_frame_host, name);
}
void WebContentsImpl::DidReceiveFirstUserActivation(
RenderFrameHost* render_frame_host) {
for (auto& observer : observers_)
observer.FrameReceivedFirstUserActivation(render_frame_host);
}
void WebContentsImpl::DidChangeDisplayState(RenderFrameHost* render_frame_host,
bool is_display_none) {
for (auto& observer : observers_)
observer.FrameDisplayStateChanged(render_frame_host, is_display_none);
}
void WebContentsImpl::FrameSizeChanged(RenderFrameHost* render_frame_host,
const gfx::Size& frame_size) {
for (auto& observer : observers_)
observer.FrameSizeChanged(render_frame_host, frame_size);
}
void WebContentsImpl::DocumentOnLoadCompleted(
RenderFrameHost* render_frame_host) {
ShowInsecureLocalhostWarningIfNeeded();
GetRenderViewHost()->DocumentOnLoadCompletedInMainFrame();
is_notifying_observers_ = true;
for (auto& observer : observers_)
observer.DocumentOnLoadCompletedInMainFrame();
is_notifying_observers_ = false;
// TODO(avi): Remove. http://crbug.com/170921
NotificationService::current()->Notify(
NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
Source<WebContents>(this),
NotificationService::NoDetails());
}
void WebContentsImpl::UpdateStateForFrame(RenderFrameHost* render_frame_host,
const PageState& page_state) {
// The state update affects the last NavigationEntry associated with the given
// |render_frame_host|. This may not be the last committed NavigationEntry (as
// in the case of an UpdateState from a frame being swapped out). We track
// which entry this is in the RenderFrameHost's nav_entry_id.
RenderFrameHostImpl* rfhi =
static_cast<RenderFrameHostImpl*>(render_frame_host);
NavigationEntryImpl* entry =
controller_.GetEntryWithUniqueID(rfhi->nav_entry_id());
if (!entry)
return;
FrameNavigationEntry* frame_entry =
entry->GetFrameEntry(rfhi->frame_tree_node());
if (!frame_entry)
return;
// The SiteInstance might not match if we do a cross-process navigation with
// replacement (e.g., auto-subframe), in which case the swap out of the old
// RenderFrameHost runs in the background after the old FrameNavigationEntry
// has already been replaced and destroyed.
if (frame_entry->site_instance() != rfhi->GetSiteInstance())
return;
if (page_state == frame_entry->page_state())
return; // Nothing to update.
DCHECK(page_state.IsValid()) << "Shouldn't set an empty PageState.";
// The document_sequence_number and item_sequence_number recorded in the
// FrameNavigationEntry should not differ from the one coming with the update,
// since it must come from the same document. Do not update it if a difference
// is detected, as this indicates that |frame_entry| is not the correct one.
ExplodedPageState exploded_state;
if (!DecodePageState(page_state.ToEncodedData(), &exploded_state))
return;
if (exploded_state.top.document_sequence_number !=
frame_entry->document_sequence_number() ||
exploded_state.top.item_sequence_number !=
frame_entry->item_sequence_number()) {
return;
}
frame_entry->SetPageState(page_state);
controller_.NotifyEntryChanged(entry);
}
void WebContentsImpl::UpdateTitle(RenderFrameHost* render_frame_host,
const base::string16& title,
base::i18n::TextDirection title_direction) {
// Try to find the navigation entry, which might not be the current one.
// For example, it might be from a recently swapped out RFH.
NavigationEntryImpl* entry = controller_.GetEntryWithUniqueID(
static_cast<RenderFrameHostImpl*>(render_frame_host)->nav_entry_id());
// We can handle title updates when we don't have an entry in
// UpdateTitleForEntry, but only if the update is from the current RVH.
// TODO(avi): Change to make decisions based on the RenderFrameHost.
if (!entry && render_frame_host != GetMainFrame())
return;
// TODO(evan): make use of title_direction.
// http://code.google.com/p/chromium/issues/detail?id=27094
UpdateTitleForEntry(entry, title);
}
void WebContentsImpl::DocumentAvailableInMainFrame(
RenderViewHost* render_view_host) {
for (auto& observer : observers_)
observer.DocumentAvailableInMainFrame();
}
void WebContentsImpl::RouteCloseEvent(RenderViewHost* rvh) {
// Tell the active RenderViewHost to run unload handlers and close, as long
// as the request came from a RenderViewHost in the same BrowsingInstance.
// In most cases, we receive this from a swapped out RenderViewHost.
// It is possible to receive it from one that has just been swapped in,
// in which case we might as well deliver the message anyway.
if (rvh->GetSiteInstance()->IsRelatedSiteInstance(GetSiteInstance()))
ClosePage();
}
bool WebContentsImpl::ShouldRouteMessageEvent(
RenderFrameHost* target_rfh,
SiteInstance* source_site_instance) const {
// 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(RenderFrameHost* 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() &&
GuestMode::IsCrossProcessFrameGuest(source_web_contents)) {
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());
} else {
RenderFrameHostImpl* source_rfhi =
static_cast<RenderFrameHostImpl*>(source_rfh);
source_rfhi->frame_tree_node()->render_manager()->CreateOpenerProxies(
GetSiteInstance(), nullptr);
}
}
}
void WebContentsImpl::SetAsFocusedWebContentsIfNecessary() {
// Only change focus if we are not currently focused.
WebContentsImpl* old_contents = GetFocusedWebContents();
if (old_contents == this)
return;
GetOutermostWebContents()->node_.SetFocusedWebContents(this);
if (!GuestMode::IsCrossProcessFrameGuest(this) && browser_plugin_guest_)
return;
// Send a page level blur to the old contents so that it displays inactive UI
// and focus this contents to activate it.
if (old_contents)
old_contents->GetMainFrame()->GetRenderWidgetHost()->SetPageFocus(false);
// Make sure the outer web contents 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.
FocusOuterAttachmentFrameChain();
if (ShowingInterstitialPage()) {
static_cast<RenderFrameHostImpl*>(interstitial_page_->GetMainFrame())
->GetRenderWidgetHost()
->SetPageFocus(true);
} else {
GetMainFrame()->GetRenderWidgetHost()->SetPageFocus(true);
}
}
void WebContentsImpl::SetFocusedFrame(FrameTreeNode* node,
SiteInstance* source) {
frame_tree_.SetFocusedFrame(node, source);
if (auto* inner_contents = node_.GetInnerWebContentsInFrame(node)) {
// |this| is an outer WebContents and |node| represents an inner
// WebContents. Transfer the focus to the inner contents if |this| is
// focused.
if (GetFocusedWebContents() == this)
inner_contents->SetAsFocusedWebContentsIfNecessary();
} else if (node_.OuterContentsFrameTreeNode() &&
node_.OuterContentsFrameTreeNode()
->current_frame_host()
->GetSiteInstance() == source) {
// |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())
SetAsFocusedWebContentsIfNecessary();
} else if (!GetOuterWebContents()) {
// This is an outermost WebContents.
SetAsFocusedWebContentsIfNecessary();
} else if (!GuestMode::IsCrossProcessFrameGuest(this) &&
GetOuterWebContents()) {
// TODO(lfg, paulmeyer): Allows BrowserPlugins to set themselves as the
// focused WebContents. This works around a bug in FindRequestManager that
// doesn't support properly traversing BrowserPlugins.
SetAsFocusedWebContentsIfNecessary();
}
}
void WebContentsImpl::DidCallFocus() {
// Any explicit focusing of another window while this WebContents is in
// fullscreen can be used to confuse the user, so drop fullscreen.
ForSecurityDropFullscreen();
}
RenderFrameHost* WebContentsImpl::GetFocusedFrameIncludingInnerWebContents() {
WebContentsImpl* contents = this;
FrameTreeNode* focused_node = contents->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->frame_tree_.GetFocusedFrame();
if (!focused_node)
return contents->GetMainFrame();
}
}
void WebContentsImpl::OnAdvanceFocus(RenderFrameHostImpl* 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() == source_rfh->delegate()->GetAsWebContents() &&
GetFocusedWebContents() == GetOuterWebContents()) {
SetAsFocusedWebContentsIfNecessary();
}
}
void WebContentsImpl::OnFocusedElementChangedInFrame(
RenderFrameHostImpl* frame,
const gfx::Rect& bounds_in_root_view) {
RenderWidgetHostViewBase* root_view =
static_cast<RenderWidgetHostViewBase*>(GetRenderWidgetHostView());
if (!root_view || !frame->GetView())
return;
// Converting to screen coordinates.
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};
// TODO(ekaramad): We should replace this with an observer notification
// (https://crbug.com/675975).
NotificationService::current()->Notify(
NOTIFICATION_FOCUS_CHANGED_IN_PAGE,
Source<RenderViewHost>(GetRenderViewHost()),
Details<FocusedNodeDetails>(&details));
for (auto& observer : observers_)
observer.OnFocusChangedInPage(&details);
}
bool WebContentsImpl::DidAddMessageToConsole(
blink::mojom::ConsoleMessageLevel log_level,
const base::string16& message,
int32_t line_no,
const base::string16& source_id) {
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::Type type) {
if (!IsUserInteractionInputType(type))
return;
// Ignore unless the widget is currently in the frame tree.
if (!HasMatchingWidgetHost(&frame_tree_, render_widget_host))
return;
if (type != blink::WebInputEvent::kGestureScrollBegin)
last_interactive_input_event_time_ = ui::EventTimeForNow();
for (auto& observer : observers_)
observer.DidGetUserInteraction(type);
}
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) {
// The PDF plugin still runs as a BrowserPlugin and must go through the
// input redirection mechanism. It must not become focused direcly.
if (!GuestMode::IsCrossProcessFrameGuest(this) && browser_plugin_guest_)
return;
RenderWidgetHostImpl* focused_widget =
GetFocusedRenderWidgetHost(render_widget_host);
if (focused_widget != render_widget_host &&
(!focused_widget ||
focused_widget->delegate() != render_widget_host->delegate())) {
SetAsFocusedWebContentsIfNecessary();
}
}
void WebContentsImpl::OnIgnoredUIEvent() {
// Notify observers.
for (auto& observer : observers_)
observer.DidGetIgnoredUIEvent();
}
void WebContentsImpl::RendererUnresponsive(
RenderWidgetHostImpl* render_widget_host,
base::RepeatingClosure hang_monitor_restarter) {
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;
for (auto& observer : observers_)
observer.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) {
if (delegate_)
delegate_->RendererResponsive(this, render_widget_host);
}
void WebContentsImpl::SubframeCrashed(
blink::mojom::FrameVisibility visibility) {
// If a subframe crashed on a hidden tab, mark the tab for reload to avoid
// showing a sad frame to the user if they ever switch back to that tab. Do
// this for subframes that are either visible in viewport or visible but
// scrolled out of view, but skip subframes that are not rendered (e.g., via
// "display:none"), since in that case the user wouldn't see a sad frame
// anyway.
bool did_mark_for_reload = false;
if (IsHidden() && visibility != blink::mojom::FrameVisibility::kNotRendered &&
base::FeatureList::IsEnabled(
features::kReloadHiddenTabsWithCrashedSubframes)) {
controller_.SetNeedsReload(
NavigationControllerImpl::NeedsReloadType::kCrashedSubframe);
did_mark_for_reload = true;
UMA_HISTOGRAM_ENUMERATION(
"Stability.ChildFrameCrash.TabMarkedForReload.Visibility", visibility);
}
UMA_HISTOGRAM_BOOLEAN("Stability.ChildFrameCrash.TabMarkedForReload",
did_mark_for_reload);
}
void WebContentsImpl::BeforeUnloadFiredFromRenderManager(
bool proceed, const base::TimeTicks& proceed_time,
bool* proceed_to_fire_unload) {
for (auto& observer : observers_)
observer.BeforeUnloadFired(proceed, proceed_time);
if (delegate_)
delegate_->BeforeUnloadFired(this, proceed, proceed_to_fire_unload);
// Note: |this| might be deleted at this point.
}
void WebContentsImpl::RenderProcessGoneFromRenderManager(
RenderViewHost* render_view_host) {
DCHECK(crashed_status_ != base::TERMINATION_STATUS_STILL_RUNNING);
RenderViewTerminated(render_view_host, crashed_status_, crashed_error_code_);
}
void WebContentsImpl::UpdateRenderViewSizeForRenderManager(bool is_main_frame) {
// TODO(brettw) this is a hack. See WebContentsView::SizeContents.
gfx::Size size = GetSizeForNewRenderView(is_main_frame);
// 0x0 isn't a valid window size (minimal window size is 1x1) but it may be
// here during container initialization and normal window size will be set
// later. In case of tab duplication this resizing to 0x0 prevents setting
// normal size later so just ignore it.
if (!size.IsEmpty())
view_->SizeContents(size);
}
void 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(RenderFrameHost* old_host,
RenderFrameHost* new_host,
bool is_main_frame) {
if (is_main_frame) {
NotifyViewSwapped(old_host ? old_host->GetRenderViewHost() : nullptr,
new_host->GetRenderViewHost());
// Make sure the visible RVH reflects the new delegate's preferences.
if (delegate_)
view_->SetOverscrollControllerEnabled(CanOverscrollContent());
RenderWidgetHostViewBase* rwhv =
static_cast<RenderWidgetHostViewBase*>(GetRenderWidgetHostView());
if (rwhv)
rwhv->SetMainFrameAXTreeID(GetMainFrame()->GetAXTreeID());
}
NotifyFrameSwapped(old_host, new_host, is_main_frame);
}
void WebContentsImpl::NotifyMainFrameSwappedFromRenderManager(
RenderFrameHost* old_host,
RenderFrameHost* new_host) {
NotifyViewSwapped(old_host ? old_host->GetRenderViewHost() : nullptr,
new_host->GetRenderViewHost());
}
NavigationControllerImpl& WebContentsImpl::GetControllerForRenderManager() {
return GetController();
}
std::unique_ptr<WebUIImpl> WebContentsImpl::CreateWebUIForRenderFrameHost(
const GURL& url) {
return CreateWebUI(url);
}
InterstitialPageImpl* WebContentsImpl::GetInterstitialForRenderManager() {
return interstitial_page_;
}
void WebContentsImpl::CreateRenderWidgetHostViewForRenderManager(
RenderViewHost* render_view_host) {
RenderWidgetHostViewBase* rwh_view =
view_->CreateViewForWidget(render_view_host->GetWidget(), false);
rwh_view->SetSize(GetSizeForNewRenderView(true));
}
bool WebContentsImpl::CreateRenderViewForRenderManager(
RenderViewHost* render_view_host,
int opener_frame_routing_id,
int proxy_routing_id,
const base::UnguessableToken& devtools_frame_token,
const FrameReplicationState& replicated_frame_state) {
TRACE_EVENT0("browser,navigation",
"WebContentsImpl::CreateRenderViewForRenderManager");
if (proxy_routing_id == MSG_ROUTING_NONE)
CreateRenderWidgetHostViewForRenderManager(render_view_host);
if (!static_cast<RenderViewHostImpl*>(render_view_host)
->CreateRenderView(opener_frame_routing_id, proxy_routing_id,
devtools_frame_token, replicated_frame_state,
created_with_opener_)) {
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 (!render_view_host->GetMainFrame()) {
render_view_host->Send(
new PageMsg_UpdateTextAutosizerPageInfoForRemoteMainFrames(
render_view_host->GetRoutingID(), text_autosizer_page_info_));
}
if (proxy_routing_id == MSG_ROUTING_NONE && node_.outer_web_contents())
ReattachToOuterWebContentsFrame();
SetHistoryOffsetAndLengthForView(render_view_host,
controller_.GetLastCommittedEntryIndex(),
controller_.GetEntryCount());
#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_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;
}
bool WebContentsImpl::CreateRenderFrameForRenderManager(
RenderFrameHost* render_frame_host,
int previous_routing_id,
int opener_routing_id,
int parent_routing_id,
int previous_sibling_routing_id) {
TRACE_EVENT0("browser,navigation",
"WebContentsImpl::CreateRenderFrameForRenderManager");
RenderFrameHostImpl* rfh =
static_cast<RenderFrameHostImpl*>(render_frame_host);
if (!rfh->CreateRenderFrame(previous_routing_id, opener_routing_id,
parent_routing_id, previous_sibling_routing_id))
return false;
// TODO(nasko): When RenderWidgetHost is owned by RenderFrameHost, the passed
// RenderFrameHost will have to be associated with the appropriate
// RenderWidgetHostView or a new one should be created here.
return true;
}
#if defined(OS_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) {
GetOrCreateFindRequestManager()->ActivateNearestFindResult(x, y);
}
void WebContentsImpl::RequestFindMatchRects(int current_version) {
GetOrCreateFindRequestManager()->RequestFindMatchRects(current_version);
}
bool WebContentsImpl::CreateRenderViewForInitialEmptyDocument() {
return CreateRenderViewForRenderManager(
GetRenderViewHost(), MSG_ROUTING_NONE, MSG_ROUTING_NONE,
frame_tree_.root()->devtools_frame_token(),
frame_tree_.root()->current_replication_state());
}
service_manager::InterfaceProvider* WebContentsImpl::GetJavaInterfaces() {
if (!java_interfaces_) {
service_manager::mojom::InterfaceProviderPtr provider;
BindInterfaceRegistryForWebContents(mojo::MakeRequest(&provider), this);
java_interfaces_.reset(new service_manager::InterfaceProvider);
java_interfaces_->Bind(std::move(provider));
}
return java_interfaces_.get();
}
#endif
bool WebContentsImpl::CompletedFirstVisuallyNonEmptyPaint() {
return GetRenderViewHost()->did_first_visually_non_empty_paint();
}
void WebContentsImpl::OnDidDownloadImage(
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) {
std::move(callback).Run(id, http_status_code, image_url, images,
original_image_sizes);
}
void WebContentsImpl::OnDialogClosed(int render_process_id,
int render_frame_id,
IPC::Message* reply_msg,
bool dialog_was_suppressed,
bool success,
const base::string16& user_input) {
RenderFrameHostImpl* rfh = RenderFrameHostImpl::FromID(render_process_id,
render_frame_id);
last_dialog_suppressed_ = dialog_was_suppressed;
javascript_dialog_navigation_deferrer_.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();
controller_.DiscardNonCommittedEntries();
}
// Update the URL display either way, to avoid showing a stale URL.
NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
for (auto& observer : observers_)
observer.BeforeUnloadDialogCancelled();
}
if (rfh) {
rfh->JavaScriptDialogClosed(reply_msg, success, user_input);
std::vector<protocol::PageHandler*> page_handlers =
protocol::PageHandler::EnabledForWebContents(this);
for (auto* handler : page_handlers)
handler->DidCloseJavaScriptDialog(success, user_input);
} else {
// Don't leak the sync IPC reply if the RFH or process is gone.
delete reply_msg;
}
is_showing_javascript_dialog_ = false;
is_showing_before_unload_dialog_ = false;
}
bool WebContentsImpl::IsHidden() {
return !IsBeingCaptured() && visibility_ != Visibility::VISIBLE;
}
int WebContentsImpl::GetOuterDelegateFrameTreeNodeId() {
return node_.outer_contents_frame_tree_node_id();
}
RenderWidgetHostImpl* WebContentsImpl::GetFullscreenRenderWidgetHost() const {
return RenderWidgetHostImpl::FromID(fullscreen_widget_process_id_,
fullscreen_widget_routing_id_);
}
RenderFrameHostManager* WebContentsImpl::GetRenderManager() const {
return frame_tree_.root()->render_manager();
}
BrowserPluginGuest* WebContentsImpl::GetBrowserPluginGuest() const {
return browser_plugin_guest_.get();
}
void WebContentsImpl::SetBrowserPluginGuest(
std::unique_ptr<BrowserPluginGuest> guest) {
DCHECK(!browser_plugin_guest_);
DCHECK(guest);
browser_plugin_guest_ = std::move(guest);
}
base::UnguessableToken WebContentsImpl::GetAudioGroupId() {
if (!base::FeatureList::IsEnabled(features::kAudioServiceAudioStreams))
return base::UnguessableToken::Null();
return GetAudioStreamFactory()->group_id();
}
ukm::SourceId WebContentsImpl::GetLastCommittedSourceId() {
return last_committed_source_id_;
}
BrowserPluginEmbedder* WebContentsImpl::GetBrowserPluginEmbedder() const {
return browser_plugin_embedder_.get();
}
void WebContentsImpl::CreateBrowserPluginEmbedderIfNecessary() {
if (browser_plugin_embedder_)
return;
browser_plugin_embedder_.reset(BrowserPluginEmbedder::Create(this));
}
gfx::Size WebContentsImpl::GetSizeForNewRenderView(bool is_main_frame) {
gfx::Size size;
if (is_main_frame)
size = device_emulation_size_;
if (size.IsEmpty() && delegate_)
size = delegate_->GetSizeForNewRenderView(this);
if (size.IsEmpty())
size = GetContainerBounds().size();
return size;
}
void WebContentsImpl::OnFrameRemoved(RenderFrameHost* render_frame_host) {
for (auto& observer : observers_)
observer.FrameDeleted(render_frame_host);
}
void WebContentsImpl::OnPreferredSizeChanged(const gfx::Size& old_size) {
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(const GURL& url) {
std::unique_ptr<WebUIImpl> web_ui = std::make_unique<WebUIImpl>(this);
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_.reset(new 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) {
if (delegate_ && !is_being_destroyed_ &&
!GetMainFrame()->GetProcess()->FastShutdownStarted()) {
delegate_->FindReply(this, request_id, number_of_matches, selection_rect,
active_match_ordinal, final_update);
}
}
void 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) {
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
}
}
void 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) {
NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
}
}
void 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() {
// 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() {
// 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() {
// 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::IncrementNativeFileSystemHandleCount() {
// 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.
native_file_system_handle_count_++;
if (native_file_system_handle_count_ == 1) {
NotifyNavigationStateChanged(static_cast<content::InvalidateTypes>(
INVALIDATE_TYPE_TAB | INVALIDATE_TYPE_URL));
}
}
void WebContentsImpl::DecrementNativeFileSystemHandleCount() {
// 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, native_file_system_handle_count_);
native_file_system_handle_count_--;
if (native_file_system_handle_count_ == 0) {
NotifyNavigationStateChanged(static_cast<content::InvalidateTypes>(
INVALIDATE_TYPE_TAB | INVALIDATE_TYPE_URL));
}
}
void WebContentsImpl::AddNativeFileSystemDirectoryHandle(
const base::FilePath& path) {
// 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.
const bool was_empty = native_file_system_directory_handles_.empty();
native_file_system_directory_handles_[path]++;
if (was_empty) {
NotifyNavigationStateChanged(static_cast<content::InvalidateTypes>(
INVALIDATE_TYPE_TAB | INVALIDATE_TYPE_URL));
}
}
void WebContentsImpl::RemoveNativeFileSystemDirectoryHandle(
const base::FilePath& path) {
// 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.
auto it = native_file_system_directory_handles_.find(path);
DCHECK(it != native_file_system_directory_handles_.end());
DCHECK_NE(0u, it->second);
it->second--;
if (it->second == 0)
native_file_system_directory_handles_.erase(it);
if (native_file_system_directory_handles_.empty()) {
NotifyNavigationStateChanged(static_cast<content::InvalidateTypes>(
INVALIDATE_TYPE_TAB | INVALIDATE_TYPE_URL));
}
}
void WebContentsImpl::IncrementWritableNativeFileSystemHandleCount() {
// 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.
native_file_system_writable_handle_count_++;
if (native_file_system_writable_handle_count_ == 1) {
NotifyNavigationStateChanged(static_cast<content::InvalidateTypes>(
INVALIDATE_TYPE_TAB | INVALIDATE_TYPE_URL));
}
}
void WebContentsImpl::DecrementWritableNativeFileSystemHandleCount() {
// 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, native_file_system_writable_handle_count_);
native_file_system_writable_handle_count_--;
if (native_file_system_writable_handle_count_ == 0) {
NotifyNavigationStateChanged(static_cast<content::InvalidateTypes>(
INVALIDATE_TYPE_TAB | INVALIDATE_TYPE_URL));
}
}
void WebContentsImpl::SetHasPersistentVideo(bool 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) {
if (is_spatial_navigation_disabled_ == disabled)
return;
is_spatial_navigation_disabled_ = disabled;
NotifyPreferencesChanged();
}
void WebContentsImpl::BrowserPluginGuestWillDetach() {
WebContentsImpl* outermost = GetOutermostWebContents();
if (this != outermost && ContainsOrIsFocusedWebContents())
outermost->SetAsFocusedWebContentsIfNecessary();
}
PictureInPictureResult WebContentsImpl::EnterPictureInPicture(
const viz::SurfaceId& surface_id,
const gfx::Size& natural_size) {
return delegate_
? delegate_->EnterPictureInPicture(this, surface_id, natural_size)
: PictureInPictureResult::kNotSupported;
}
void WebContentsImpl::ExitPictureInPicture() {
if (delegate_)
delegate_->ExitPictureInPicture();
}
#if defined(OS_ANDROID)
void WebContentsImpl::NotifyFindMatchRectsReply(
int version,
const std::vector<gfx::RectF>& rects,
const gfx::RectF& active_rect) {
if (delegate_)
delegate_->FindMatchRectsReply(this, version, rects, active_rect);
}
#endif
void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
force_disable_overscroll_content_ = force_disable;
if (view_)
view_->SetOverscrollControllerEnabled(CanOverscrollContent());
}
bool WebContentsImpl::SetDeviceEmulationSize(const gfx::Size& new_size) {
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() {
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,
GetSystemConnector()->Clone(), AudioStreamBrokerFactory::CreateImpl());
}
return &*audio_stream_factory_;
}
void WebContentsImpl::MediaStartedPlaying(
const WebContentsObserver::MediaPlayerInfo& media_info,
const MediaPlayerId& id) {
if (media_info.has_video)
currently_playing_video_count_++;
for (auto& observer : observers_)
observer.MediaStartedPlaying(media_info, id);
}
void WebContentsImpl::MediaStoppedPlaying(
const WebContentsObserver::MediaPlayerInfo& media_info,
const MediaPlayerId& id,
WebContentsObserver::MediaStoppedReason reason) {
if (media_info.has_video)
currently_playing_video_count_--;
for (auto& observer : observers_)
observer.MediaStoppedPlaying(media_info, id, reason);
}
void WebContentsImpl::MediaResized(const gfx::Size& size,
const MediaPlayerId& id) {
cached_video_sizes_[id] = size;
for (auto& observer : observers_)
observer.MediaResized(size, id);
}
void WebContentsImpl::MediaEffectivelyFullscreenChanged(bool is_fullscreen) {
for (auto& observer : observers_)
observer.MediaEffectivelyFullscreenChanged(is_fullscreen);
}
base::Optional<gfx::Size> WebContentsImpl::GetFullscreenVideoSize() {
base::Optional<MediaPlayerId> id =
media_web_contents_observer_->GetFullscreenVideoMediaPlayerId();
if (id && base::Contains(cached_video_sizes_, id.value()))
return base::Optional<gfx::Size>(cached_video_sizes_[id.value()]);
return base::nullopt;
}
int WebContentsImpl::GetCurrentlyPlayingVideoCount() {
return currently_playing_video_count_;
}
void WebContentsImpl::AudioContextPlaybackStarted(RenderFrameHost* host,
int context_id) {
WebContentsObserver::AudioContextId audio_context_id(host, context_id);
for (auto& observer : observers_)
observer.AudioContextPlaybackStarted(audio_context_id);
}
void WebContentsImpl::AudioContextPlaybackStopped(RenderFrameHost* host,
int context_id) {
WebContentsObserver::AudioContextId audio_context_id(host, context_id);
for (auto& observer : observers_)
observer.AudioContextPlaybackStopped(audio_context_id);
}
void WebContentsImpl::MediaWatchTimeChanged(
const content::MediaPlayerWatchTime& watch_time) {
for (auto& observer : observers_)
observer.MediaWatchTimeChanged(watch_time);
}
RenderFrameHostImpl* WebContentsImpl::GetMainFrameForInnerDelegate(
FrameTreeNode* frame_tree_node) {
if (auto* web_contents = node_.GetInnerWebContentsInFrame(frame_tree_node))
return web_contents->GetMainFrame();
return nullptr;
}
bool WebContentsImpl::IsFrameLowPriority(
const RenderFrameHost* render_frame_host) {
if (!delegate_)
return false;
return delegate_->IsFrameLowPriority(this, render_frame_host);
}
void WebContentsImpl::UpdateWebContentsVisibility(Visibility visibility) {
// Occlusion is disabled when |features::kWebContentsOcclusion| is disabled
// (for power and speed impact assessment) or when
// |switches::kDisableBackgroundingOccludedWindowsForTesting| is specified on
// the command line (to avoid flakiness in browser tests).
const bool occlusion_is_disabled =
!base::FeatureList::IsEnabled(features::kWebContentsOcclusion) ||
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() {
NotifyPreferencesChanged();
}
void WebContentsImpl::SetJavaScriptDialogManagerForTesting(
JavaScriptDialogManager* dialog_manager) {
dialog_manager_ = dialog_manager;
}
void WebContentsImpl::RemoveBindingSet(const std::string& interface_name) {
auto it = binding_sets_.find(interface_name);
if (it != binding_sets_.end())
binding_sets_.erase(it);
}
bool WebContentsImpl::AddDomainInfoToRapporSample(rappor::Sample* sample) {
// Here we associate this metric to the main frame URL regardless of what
// caused it.
sample->SetStringField("Domain", ::rappor::GetDomainAndRegistrySampleFromGURL(
GetLastCommittedURL()));
return true;
}
void WebContentsImpl::FocusedNodeTouched(bool editable) {
#if defined(OS_WIN)
RenderWidgetHostView* view = GetRenderWidgetHostView();
if (!view)
return;
view->FocusedNodeTouched(editable);
#endif
}
void WebContentsImpl::ShowInsecureLocalhostWarningIfNeeded() {
bool allow_localhost = base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kAllowInsecureLocalhost);
if (!allow_localhost)
return;
content::NavigationEntry* entry = GetController().GetLastCommittedEntry();
if (!entry || !net::IsLocalhost(entry->GetURL()))
return;
content::SSLStatus ssl_status = entry->GetSSL();
if (!net::IsCertStatusError(ssl_status.cert_status))
return;
GetMainFrame()->AddMessageToConsole(
blink::mojom::ConsoleMessageLevel::kWarning,
base::StringPrintf("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) {
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) {
if (opener) {
FrameTreeNode* new_root = GetFrameTree()->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());
if (!opener_suppressed) {
new_root->SetOpener(opener);
created_with_opener_ = true;
}
}
}
void WebContentsImpl::MediaMutedStatusChanged(const MediaPlayerId& id,
bool muted) {
for (auto& observer : observers_)
observer.MediaMutedStatusChanged(id, muted);
}
void WebContentsImpl::SetVisibilityForChildViews(bool visible) {
GetMainFrame()->SetVisibilityForChildViews(visible);
}
mojom::FrameInputHandler* WebContentsImpl::GetFocusedFrameInputHandler() {
auto* focused_frame = GetFocusedFrame();
if (!focused_frame)
return nullptr;
return focused_frame->GetFrameInputHandler();
}
} // namespace content