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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
#define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
#include <map>
#include <string>
#include "base/compiler_specific.h"
#include "base/gtest_prod_util.h"
#include "base/memory/scoped_ptr.h"
#include "base/observer_list.h"
#include "content/browser/browser_plugin/old/old_browser_plugin_host.h"
#include "content/browser/renderer_host/java/java_bridge_dispatcher_host_manager.h"
#include "content/browser/renderer_host/render_view_host_delegate.h"
#include "content/browser/renderer_host/render_widget_host_delegate.h"
#include "content/browser/web_contents/navigation_controller_impl.h"
#include "content/browser/web_contents/render_view_host_manager.h"
#include "content/common/content_export.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/renderer_preferences.h"
#include "net/base/load_states.h"
#include "ui/gfx/rect_f.h"
#include "ui/gfx/size.h"
#include "webkit/glue/resource_type.h"
#if defined(OS_WIN)
#include "base/win/scoped_handle.h"
#endif
class InterstitialPageImpl;
class SavePackage;
class SessionStorageNamespaceImpl;
class WebContentsImpl;
struct ViewMsg_PostMessage_Params;
namespace content {
class BrowserPluginEmbedder;
class BrowserPluginGuest;
class ColorChooser;
class DownloadItem;
class JavaScriptDialogCreator;
class RenderViewHost;
class RenderViewHostDelegateView;
class RenderViewHostImpl;
class SiteInstance;
class TestWebContents;
class WebContentsDelegate;
class WebContentsObserver;
class WebContentsView;
class WebContentsViewDelegate;
struct LoadNotificationDetails;
// Factory function for the implementations that content knows about. Takes
// ownership of |delegate|.
WebContentsView* CreateWebContentsView(
WebContentsImpl* web_contents,
WebContentsViewDelegate* delegate,
RenderViewHostDelegateView** render_view_host_delegate_view);
} // namespace content
namespace webkit_glue {
struct WebIntentData;
struct WebIntentServiceData;
}
class CONTENT_EXPORT WebContentsImpl
: public NON_EXPORTED_BASE(content::WebContents),
public content::RenderViewHostDelegate,
public content::RenderWidgetHostDelegate,
public RenderViewHostManager::Delegate,
public content::NotificationObserver {
public:
virtual ~WebContentsImpl();
static WebContentsImpl* Create(
content::BrowserContext* browser_context,
content::SiteInstance* site_instance,
int routing_id,
const WebContentsImpl* base_web_contents);
static WebContentsImpl* CreateWithOpener(
content::BrowserContext* browser_context,
content::SiteInstance* site_instance,
int routing_id,
const WebContentsImpl* base_web_contents,
WebContentsImpl* opener);
// Creates a WebContents to be used as a browser plugin guest.
static WebContentsImpl* CreateGuest(content::BrowserContext* browser_context,
const std::string& host,
int guest_instance_id);
// Returns the content specific prefs for the given RVH.
static webkit_glue::WebPreferences GetWebkitPrefs(
content::RenderViewHost* rvh, const GURL& url);
// Complex initialization here. Specifically needed to avoid having
// members call back into our virtual functions in the constructor.
virtual void Init(content::BrowserContext* browser_context,
content::SiteInstance* site_instance,
int routing_id,
const content::WebContents* base_web_contents);
// Returns the SavePackage which manages the page saving job. May be NULL.
SavePackage* save_package() const { return save_package_.get(); }
// Updates the max page ID for the current SiteInstance in this
// WebContentsImpl to be at least |page_id|.
void UpdateMaxPageID(int32 page_id);
// Updates the max page ID for the given SiteInstance in this WebContentsImpl
// to be at least |page_id|.
void UpdateMaxPageIDForSiteInstance(content::SiteInstance* site_instance,
int32 page_id);
// Copy the current map of SiteInstance ID to max page ID from another tab.
// This is necessary when this tab adopts the NavigationEntries from
// |web_contents|.
void CopyMaxPageIDsFrom(WebContentsImpl* web_contents);
// Called by the NavigationController to cause the WebContentsImpl to navigate
// to the current pending entry. The NavigationController should be called
// back with RendererDidNavigate on success or DiscardPendingEntry on failure.
// The callbacks can be inside of this function, or at some future time.
//
// The entry has a PageID of -1 if newly created (corresponding to navigation
// to a new URL).
//
// If this method returns false, then the navigation is discarded (equivalent
// to calling DiscardPendingEntry on the NavigationController).
bool NavigateToPendingEntry(
content::NavigationController::ReloadType reload_type);
// Called by InterstitialPageImpl when it creates a RenderViewHost.
void RenderViewForInterstitialPageCreated(
content::RenderViewHost* render_view_host);
// Sets the passed passed interstitial as the currently showing interstitial.
// |interstitial_page| should be non NULL (use the remove_interstitial_page
// method to unset the interstitial) and no interstitial page should be set
// when there is already a non NULL interstitial page set.
void set_interstitial_page(InterstitialPageImpl* interstitial_page) {
render_manager_.set_interstitial_page(interstitial_page);
}
// Unsets the currently showing interstitial.
void remove_interstitial_page() {
render_manager_.remove_interstitial_page();
}
void set_opener_web_ui_type(content::WebUI::TypeID opener_web_ui_type) {
opener_web_ui_type_ = opener_web_ui_type;
}
JavaBridgeDispatcherHostManager* java_bridge_dispatcher_host_manager() const {
return java_bridge_dispatcher_host_manager_.get();
}
content::old::BrowserPluginHost* old_browser_plugin_host() const {
return old_browser_plugin_host_.get();
}
// Expose the render manager for testing.
RenderViewHostManager* GetRenderManagerForTesting();
// Returns guest browser plugin object, or NULL if this WebContents is not a
// guest.
content::BrowserPluginGuest* GetBrowserPluginGuest();
// Returns embedder browser plugin object, or NULL if this WebContents is not
// an embedder.
content::BrowserPluginEmbedder* GetBrowserPluginEmbedder();
// content::WebContents ------------------------------------------------------
virtual content::WebContentsDelegate* GetDelegate() OVERRIDE;
virtual void SetDelegate(content::WebContentsDelegate* delegate) OVERRIDE;
virtual NavigationControllerImpl& GetController() OVERRIDE;
virtual const NavigationControllerImpl& GetController() const OVERRIDE;
virtual content::BrowserContext* GetBrowserContext() const OVERRIDE;
virtual content::RenderProcessHost* GetRenderProcessHost() const OVERRIDE;
virtual content::RenderViewHost* GetRenderViewHost() const OVERRIDE;
virtual int GetRoutingID() const OVERRIDE;
virtual content::RenderWidgetHostView*
GetRenderWidgetHostView() const OVERRIDE;
virtual content::WebContentsView* GetView() const OVERRIDE;
virtual content::WebUI* CreateWebUI(const GURL& url) OVERRIDE;
virtual content::WebUI* GetWebUI() const OVERRIDE;
virtual content::WebUI* GetCommittedWebUI() const OVERRIDE;
virtual void SetUserAgentOverride(const std::string& override) OVERRIDE;
virtual const std::string& GetUserAgentOverride() const OVERRIDE;
virtual const string16& GetTitle() const OVERRIDE;
virtual int32 GetMaxPageID() OVERRIDE;
virtual int32 GetMaxPageIDForSiteInstance(
content::SiteInstance* site_instance) OVERRIDE;
virtual content::SiteInstance* GetSiteInstance() const OVERRIDE;
virtual content::SiteInstance* GetPendingSiteInstance() const OVERRIDE;
virtual bool IsLoading() const OVERRIDE;
virtual bool IsWaitingForResponse() const OVERRIDE;
virtual const net::LoadStateWithParam& GetLoadState() const OVERRIDE;
virtual const string16& GetLoadStateHost() const OVERRIDE;
virtual uint64 GetUploadSize() const OVERRIDE;
virtual uint64 GetUploadPosition() const OVERRIDE;
virtual const std::string& GetEncoding() const OVERRIDE;
virtual bool DisplayedInsecureContent() const OVERRIDE;
virtual void SetCapturingContents(bool cap) OVERRIDE;
virtual bool IsCrashed() const OVERRIDE;
virtual void SetIsCrashed(base::TerminationStatus status,
int error_code) OVERRIDE;
virtual base::TerminationStatus GetCrashedStatus() const OVERRIDE;
virtual bool IsBeingDestroyed() const OVERRIDE;
virtual void NotifyNavigationStateChanged(unsigned changed_flags) OVERRIDE;
virtual base::TimeTicks GetLastSelectedTime() const OVERRIDE;
virtual void WasShown() OVERRIDE;
virtual void WasHidden() OVERRIDE;
virtual bool NeedToFireBeforeUnload() OVERRIDE;
virtual void Stop() OVERRIDE;
virtual content::WebContents* Clone() OVERRIDE;
virtual gfx::NativeView GetContentNativeView() const OVERRIDE;
virtual gfx::NativeView GetNativeView() const OVERRIDE;
virtual void GetContainerBounds(gfx::Rect* out) const OVERRIDE;
virtual void Focus() OVERRIDE;
virtual void FocusThroughTabTraversal(bool reverse) OVERRIDE;
virtual bool ShowingInterstitialPage() const OVERRIDE;
virtual content::InterstitialPage* GetInterstitialPage() const OVERRIDE;
virtual bool IsSavable() OVERRIDE;
virtual void OnSavePage() OVERRIDE;
virtual bool SavePage(const FilePath& main_file,
const FilePath& dir_path,
content::SavePageType save_type) OVERRIDE;
virtual void GenerateMHTML(
const FilePath& file,
const base::Callback<void(const FilePath&, int64)>& callback) OVERRIDE;
virtual bool IsActiveEntry(int32 page_id) OVERRIDE;
virtual const std::string& GetContentsMimeType() const OVERRIDE;
virtual bool WillNotifyDisconnection() const OVERRIDE;
virtual void SetOverrideEncoding(const std::string& encoding) OVERRIDE;
virtual void ResetOverrideEncoding() OVERRIDE;
virtual content::RendererPreferences* GetMutableRendererPrefs() OVERRIDE;
virtual void SetNewTabStartTime(const base::TimeTicks& time) OVERRIDE;
virtual base::TimeTicks GetNewTabStartTime() const OVERRIDE;
virtual void Close() OVERRIDE;
virtual void OnCloseStarted() OVERRIDE;
virtual bool ShouldAcceptDragAndDrop() const OVERRIDE;
virtual void SystemDragEnded() OVERRIDE;
virtual void UserGestureDone() OVERRIDE;
virtual void SetClosedByUserGesture(bool value) OVERRIDE;
virtual bool GetClosedByUserGesture() const OVERRIDE;
virtual double GetZoomLevel() const OVERRIDE;
virtual int GetZoomPercent(bool* enable_increment,
bool* enable_decrement) OVERRIDE;
virtual void ViewSource() OVERRIDE;
virtual void ViewFrameSource(const GURL& url,
const std::string& content_state) OVERRIDE;
virtual int GetMinimumZoomPercent() const OVERRIDE;
virtual int GetMaximumZoomPercent() const OVERRIDE;
virtual gfx::Size GetPreferredSize() const OVERRIDE;
virtual int GetContentRestrictions() const OVERRIDE;
virtual content::WebUI::TypeID GetWebUITypeForCurrentState() OVERRIDE;
virtual content::WebUI* GetWebUIForCurrentState() OVERRIDE;
virtual bool GotResponseToLockMouseRequest(bool allowed) OVERRIDE;
virtual bool HasOpener() const OVERRIDE;
virtual void DidChooseColorInColorChooser(int color_chooser_id,
SkColor color) OVERRIDE;
virtual void DidEndColorChooser(int color_chooser_id) OVERRIDE;
// Implementation of PageNavigator.
virtual content::WebContents* OpenURL(
const content::OpenURLParams& params) OVERRIDE;
// Implementation of IPC::Sender.
virtual bool Send(IPC::Message* message) OVERRIDE;
// RenderViewHostDelegate ----------------------------------------------------
virtual content::RenderViewHostDelegateView* GetDelegateView() OVERRIDE;
virtual content::RenderViewHostDelegate::RendererManagement*
GetRendererManagementDelegate() OVERRIDE;
virtual bool OnMessageReceived(content::RenderViewHost* render_view_host,
const IPC::Message& message) OVERRIDE;
virtual const GURL& GetURL() const OVERRIDE;
virtual content::WebContents* GetAsWebContents() OVERRIDE;
virtual gfx::Rect GetRootWindowResizerRect() const OVERRIDE;
virtual void RenderViewCreated(
content::RenderViewHost* render_view_host) OVERRIDE;
virtual void RenderViewReady(
content::RenderViewHost* render_view_host) OVERRIDE;
virtual void RenderViewGone(content::RenderViewHost* render_view_host,
base::TerminationStatus status,
int error_code) OVERRIDE;
virtual void RenderViewDeleted(
content::RenderViewHost* render_view_host) OVERRIDE;
virtual void DidStartProvisionalLoadForFrame(
content::RenderViewHost* render_view_host,
int64 frame_id,
bool main_frame,
const GURL& opener_url,
const GURL& url) OVERRIDE;
virtual void DidRedirectProvisionalLoad(
content::RenderViewHost* render_view_host,
int32 page_id,
const GURL& opener_url,
const GURL& source_url,
const GURL& target_url) OVERRIDE;
virtual void DidFailProvisionalLoadWithError(
content::RenderViewHost* render_view_host,
const ViewHostMsg_DidFailProvisionalLoadWithError_Params& params)
OVERRIDE;
virtual void DidNavigate(
content::RenderViewHost* render_view_host,
const ViewHostMsg_FrameNavigate_Params& params) OVERRIDE;
virtual void UpdateState(content::RenderViewHost* render_view_host,
int32 page_id,
const std::string& state) OVERRIDE;
virtual void UpdateTitle(content::RenderViewHost* render_view_host,
int32 page_id,
const string16& title,
base::i18n::TextDirection title_direction) OVERRIDE;
virtual void UpdateEncoding(content::RenderViewHost* render_view_host,
const std::string& encoding) OVERRIDE;
virtual void UpdateTargetURL(int32 page_id, const GURL& url) OVERRIDE;
virtual void Close(content::RenderViewHost* render_view_host) OVERRIDE;
virtual void RequestMove(const gfx::Rect& new_bounds) OVERRIDE;
virtual void SwappedOut(content::RenderViewHost* render_view_host) OVERRIDE;
virtual void DidStartLoading(
content::RenderViewHost* render_view_host) OVERRIDE;
virtual void DidStopLoading(
content::RenderViewHost* render_view_host) OVERRIDE;
virtual void DidCancelLoading() OVERRIDE;
virtual void DidChangeLoadProgress(double progress) OVERRIDE;
virtual void DidUpdateFrameTree(content::RenderViewHost* rvh) OVERRIDE;
virtual void DocumentAvailableInMainFrame(
content::RenderViewHost* render_view_host) OVERRIDE;
virtual void DocumentOnLoadCompletedInMainFrame(
content::RenderViewHost* render_view_host,
int32 page_id) OVERRIDE;
virtual void RequestOpenURL(content::RenderViewHost* rvh,
const GURL& url,
const content::Referrer& referrer,
WindowOpenDisposition disposition,
int64 source_frame_id) OVERRIDE;
virtual void RequestTransferURL(
const GURL& url,
const content::Referrer& referrer,
WindowOpenDisposition disposition,
int64 source_frame_id,
const content::GlobalRequestID& transferred_global_request_id) OVERRIDE;
virtual void RouteCloseEvent(content::RenderViewHost* rvh) OVERRIDE;
virtual void RouteMessageEvent(
content::RenderViewHost* rvh,
const ViewMsg_PostMessage_Params& params) OVERRIDE;
virtual void RunJavaScriptMessage(content::RenderViewHost* rvh,
const string16& message,
const string16& default_prompt,
const GURL& frame_url,
content::JavaScriptMessageType type,
IPC::Message* reply_msg,
bool* did_suppress_message) OVERRIDE;
virtual void RunBeforeUnloadConfirm(content::RenderViewHost* rvh,
const string16& message,
bool is_reload,
IPC::Message* reply_msg) OVERRIDE;
virtual bool AddMessageToConsole(int32 level,
const string16& message,
int32 line_no,
const string16& source_id) OVERRIDE;
virtual content::RendererPreferences GetRendererPrefs(
content::BrowserContext* browser_context) const OVERRIDE;
virtual webkit_glue::WebPreferences GetWebkitPrefs() OVERRIDE;
virtual void OnUserGesture() OVERRIDE;
virtual void OnIgnoredUIEvent() OVERRIDE;
virtual void RendererUnresponsive(content::RenderViewHost* render_view_host,
bool is_during_unload) OVERRIDE;
virtual void RendererResponsive(
content::RenderViewHost* render_view_host) OVERRIDE;
virtual void LoadStateChanged(const GURL& url,
const net::LoadStateWithParam& load_state,
uint64 upload_position,
uint64 upload_size) OVERRIDE;
virtual void WorkerCrashed() OVERRIDE;
virtual void Activate() OVERRIDE;
virtual void Deactivate() OVERRIDE;
virtual void LostCapture() OVERRIDE;
virtual void HandleMouseDown() OVERRIDE;
virtual void HandleMouseUp() OVERRIDE;
virtual void HandlePointerActivate() OVERRIDE;
virtual void HandleGestureBegin() OVERRIDE;
virtual void HandleGestureEnd() OVERRIDE;
virtual void RunFileChooser(
content::RenderViewHost* render_view_host,
const content::FileChooserParams& params) OVERRIDE;
virtual void ToggleFullscreenMode(bool enter_fullscreen) OVERRIDE;
virtual bool IsFullscreenForCurrentTab() const OVERRIDE;
virtual void UpdatePreferredSize(const gfx::Size& pref_size) OVERRIDE;
virtual void ResizeDueToAutoResize(const gfx::Size& new_size) OVERRIDE;
virtual void RequestToLockMouse(bool user_gesture,
bool last_unlocked_by_target) OVERRIDE;
virtual void LostMouseLock() OVERRIDE;
virtual void CreateNewWindow(
int route_id,
const ViewHostMsg_CreateWindow_Params& params,
content::SessionStorageNamespace* session_storage_namespace) OVERRIDE;
virtual void CreateNewWidget(int route_id,
WebKit::WebPopupType popup_type) OVERRIDE;
virtual void CreateNewFullscreenWidget(int route_id) OVERRIDE;
virtual void ShowCreatedWindow(int route_id,
WindowOpenDisposition disposition,
const gfx::Rect& initial_pos,
bool user_gesture) OVERRIDE;
virtual void ShowCreatedWidget(int route_id,
const gfx::Rect& initial_pos) OVERRIDE;
virtual void ShowCreatedFullscreenWidget(int route_id) OVERRIDE;
virtual void ShowContextMenu(
const content::ContextMenuParams& params,
content::ContextMenuSourceType type) OVERRIDE;
virtual void RequestMediaAccessPermission(
const content::MediaStreamRequest* request,
const content::MediaResponseCallback& callback) OVERRIDE;
#if defined(OS_ANDROID)
virtual void AttachLayer(WebKit::WebLayer* layer) OVERRIDE;
virtual void RemoveLayer(WebKit::WebLayer* layer) OVERRIDE;
#endif
// RenderWidgetHostDelegate --------------------------------------------------
virtual bool PreHandleKeyboardEvent(
const content::NativeWebKeyboardEvent& event,
bool* is_keyboard_shortcut) OVERRIDE;
virtual void HandleKeyboardEvent(
const content::NativeWebKeyboardEvent& event) OVERRIDE;
// RenderViewHostManager::Delegate -------------------------------------------
virtual bool CreateRenderViewForRenderManager(
content::RenderViewHost* render_view_host, int opener_route_id) OVERRIDE;
virtual void BeforeUnloadFiredFromRenderManager(
bool proceed,
bool* proceed_to_fire_unload) OVERRIDE;
virtual void RenderViewGoneFromRenderManager(
content::RenderViewHost* render_view_host) OVERRIDE;
virtual void UpdateRenderViewSizeForRenderManager() OVERRIDE;
virtual void NotifySwappedFromRenderManager() OVERRIDE;
virtual int CreateOpenerRenderViewsForRenderManager(
content::SiteInstance* instance) OVERRIDE;
virtual NavigationControllerImpl& GetControllerForRenderManager() OVERRIDE;
virtual WebUIImpl* CreateWebUIForRenderManager(const GURL& url) OVERRIDE;
virtual content::NavigationEntry*
GetLastCommittedNavigationEntryForRenderManager() OVERRIDE;
virtual bool FocusLocationBarByDefault() OVERRIDE;
virtual void SetFocusToLocationBar(bool select_all) OVERRIDE;
virtual void CreateViewAndSetSizeForRVH(
content::RenderViewHost* rvh) OVERRIDE;
// content::NotificationObserver ---------------------------------------------
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
private:
friend class NavigationControllerImpl;
friend class content::WebContentsObserver;
friend class content::WebContents; // To implement factory methods.
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, NoJSMessageOnInterstitials);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest, UpdateTitle);
FRIEND_TEST_ALL_PREFIXES(WebContentsImplTest,
CrossSiteCantPreemptAfterUnload);
FRIEND_TEST_ALL_PREFIXES(FormStructureBrowserTest, HTMLFiles);
FRIEND_TEST_ALL_PREFIXES(NavigationControllerTest, HistoryNavigate);
FRIEND_TEST_ALL_PREFIXES(RenderViewHostManagerTest, PageDoesBackAndReload);
// So InterstitialPageImpl can access SetIsLoading.
friend class InterstitialPageImpl;
// TODO(brettw) TestWebContents shouldn't exist!
friend class content::TestWebContents;
// See WebContents::Create for a description of these parameters.
WebContentsImpl(content::BrowserContext* browser_context,
WebContentsImpl* opener);
// Add and remove observers for page navigation notifications. Adding or
// removing multiple times has no effect. The order in which notifications
// are sent to observers is undefined. Clients must be sure to remove the
// observer before they go away.
void AddObserver(content::WebContentsObserver* observer);
void RemoveObserver(content::WebContentsObserver* observer);
// Clears this tab's opener if it has been closed.
void OnWebContentsDestroyed(content::WebContents* web_contents);
// Callback function when showing JS dialogs.
void OnDialogClosed(content::RenderViewHost* rvh,
IPC::Message* reply_msg,
bool success,
const string16& user_input);
// Callback function when requesting permission to access the PPAPI broker.
// |result| is true if permission was granted.
void OnPpapiBrokerPermissionResult(int request_id, bool result);
// IPC message handlers.
void OnRegisterIntentService(const webkit_glue::WebIntentServiceData& data,
bool user_gesture);
void OnWebIntentDispatch(const webkit_glue::WebIntentData& intent,
int intent_id);
void OnDidLoadResourceFromMemoryCache(const GURL& url,
const std::string& security_info,
const std::string& http_request,
const std::string& mime_type,
ResourceType::Type resource_type);
void OnDidDisplayInsecureContent();
void OnDidRunInsecureContent(const std::string& security_origin,
const GURL& target_url);
void OnDocumentLoadedInFrame(int64 frame_id);
void OnDidFinishLoad(int64 frame_id,
const GURL& validated_url,
bool is_main_frame);
void OnDidFailLoadWithError(int64 frame_id,
const GURL& validated_url,
bool is_main_frame,
int error_code,
const string16& error_description);
void OnUpdateContentRestrictions(int restrictions);
void OnGoToEntryAtOffset(int offset);
void OnUpdateZoomLimits(int minimum_percent,
int maximum_percent,
bool remember);
void OnSaveURL(const GURL& url, const content::Referrer& referrer);
void OnEnumerateDirectory(int request_id, const FilePath& path);
void OnJSOutOfMemory();
void OnRegisterProtocolHandler(const std::string& protocol,
const GURL& url,
const string16& title,
bool user_gesture);
void OnFindReply(int request_id,
int number_of_matches,
const gfx::Rect& selection_rect,
int active_match_ordinal,
bool final_update);
#if defined(OS_ANDROID)
void OnFindMatchRectsReply(int version,
const std::vector<gfx::RectF>& rects,
const gfx::RectF& active_rect);
#endif
void OnCrashedPlugin(const FilePath& plugin_path);
void OnAppCacheAccessed(const GURL& manifest_url, bool blocked_by_policy);
void OnOpenColorChooser(int color_chooser_id, SkColor color);
void OnEndColorChooser(int color_chooser_id);
void OnSetSelectedColorInColorChooser(int color_chooser_id, SkColor color);
void OnPepperPluginHung(int plugin_child_id,
const FilePath& path,
bool is_hung);
void OnWebUISend(const GURL& source_url,
const std::string& name,
const base::ListValue& args);
void OnRequestPpapiBrokerPermission(int request_id,
const GURL& url,
const FilePath& plugin_path);
void OnBrowserPluginNavigateGuest(int instance_id,
int64 frame_id,
const std::string& src,
const gfx::Size& size);
// Changes the IsLoading state and notifies delegate as needed
// |details| is used to provide details on the load that just finished
// (but can be null if not applicable). Can be overridden.
void SetIsLoading(bool is_loading,
content::LoadNotificationDetails* details);
// Called by derived classes to indicate that we're no longer waiting for a
// response. This won't actually update the throbber, but it will get picked
// up at the next animation step if the throbber is going.
void SetNotWaitingForResponse() { waiting_for_response_ = false; }
// Navigation helpers --------------------------------------------------------
//
// These functions are helpers for Navigate() and DidNavigate().
// Handles post-navigation tasks in DidNavigate AFTER the entry has been
// committed to the navigation controller. Note that the navigation entry is
// not provided since it may be invalid/changed after being committed. The
// current navigation entry is in the NavigationController at this point.
void DidNavigateMainFramePostCommit(
const content::LoadCommittedDetails& details,
const ViewHostMsg_FrameNavigate_Params& params);
void DidNavigateAnyFramePostCommit(
content::RenderViewHost* render_view_host,
const content::LoadCommittedDetails& details,
const ViewHostMsg_FrameNavigate_Params& params);
// If our controller was restored, update the max page ID associated with the
// given RenderViewHost to be larger than the number of restored entries.
// This is called in CreateRenderView before any navigations in the RenderView
// have begun, to prevent any races in updating RenderView::next_page_id.
void UpdateMaxPageIDIfNecessary(content::RenderViewHost* rvh);
// Saves the given title to the navigation entry and does associated work. It
// will update history and the view for the new title, and also synthesize
// titles for file URLs that have none (so we require that the URL of the
// entry already be set).
//
// This is used as the backend for state updates, which include a new title,
// or the dedicated set title message. It returns true if the new title is
// different and was therefore updated.
bool UpdateTitleForEntry(content::NavigationEntryImpl* entry,
const string16& title);
// Causes the WebContentsImpl to navigate in the right renderer to |entry|,
// which must be already part of the entries in the navigation controller.
// This does not change the NavigationController state.
bool NavigateToEntry(const content::NavigationEntryImpl& entry,
content::NavigationController::ReloadType reload_type);
// Sets the history for this WebContentsImpl to |history_length| entries, and
// moves the current page_id to the last entry in the list if it's valid.
// This is mainly used when a prerendered page is swapped into the current
// tab. The method is virtual for testing.
virtual void SetHistoryLengthAndPrune(
const content::SiteInstance* site_instance,
int merge_history_length,
int32 minimum_page_id);
// Recursively creates swapped out RenderViews for this tab's opener chain
// (including this tab) in the given SiteInstance, allowing other tabs to send
// cross-process JavaScript calls to their opener(s). Returns the route ID of
// this tab's RenderView for |instance|.
int CreateOpenerRenderViews(content::SiteInstance* instance);
// Helper for CreateNewWidget/CreateNewFullscreenWidget.
void CreateNewWidget(int route_id,
bool is_fullscreen,
WebKit::WebPopupType popup_type);
// Helper for ShowCreatedWidget/ShowCreatedFullscreenWidget.
void ShowCreatedWidget(int route_id,
bool is_fullscreen,
const gfx::Rect& initial_pos);
// Finds the new RenderWidgetHost and returns it. Note that this can only be
// called once as this call also removes it from the internal map.
content::RenderWidgetHostView* GetCreatedWidget(int route_id);
// Finds the new WebContentsImpl by route_id, initializes it for
// renderer-initiated creation, and returns it. Note that this can only be
// called once as this call also removes it from the internal map.
WebContentsImpl* GetCreatedWindow(int route_id);
// Misc non-view stuff -------------------------------------------------------
// Helper functions for sending notifications.
void NotifySwapped();
void NotifyConnected();
void NotifyDisconnected();
void SetEncoding(const std::string& encoding);
// Save a URL to the local filesystem.
void SaveURL(const GURL& url,
const content::Referrer& referrer,
bool is_main_frame);
content::RenderViewHostImpl* GetRenderViewHostImpl();
void GetBrowserPluginEmbedderInfo(content::RenderViewHost* render_view_host,
std::string* embedder_channel_name,
int* embedder_container_id);
// Removes browser plugin embedder if there is one.
void RemoveBrowserPluginEmbedder();
// Data for core operation ---------------------------------------------------
// Delegate for notifying our owner about stuff. Not owned by us.
content::WebContentsDelegate* delegate_;
// Handles the back/forward list and loading.
NavigationControllerImpl controller_;
// The corresponding view.
scoped_ptr<content::WebContentsView> view_;
// The view of the RVHD. Usually this is our WebContentsView implementation,
// but if an embedder uses a different WebContentsView, they'll need to
// provide this.
content::RenderViewHostDelegateView* render_view_host_delegate_view_;
// Tracks created WebContentsImpl objects that have not been shown yet. They
// are identified by the route ID passed to CreateNewWindow.
typedef std::map<int, WebContentsImpl*> PendingContents;
PendingContents pending_contents_;
// These maps hold on to the widgets that we created on behalf of the renderer
// that haven't shown yet.
typedef std::map<int, content::RenderWidgetHostView*> PendingWidgetViews;
PendingWidgetViews pending_widget_views_;
// A list of observers notified when page state changes. Weak references.
// This MUST be listed above render_manager_ since at destruction time the
// latter might cause RenderViewHost's destructor to call us and we might use
// the observer list then.
ObserverList<content::WebContentsObserver> observers_;
// The tab that opened this tab, if any. Will be set to null if the opener
// is closed.
WebContentsImpl* opener_;
// Helper classes ------------------------------------------------------------
// Manages creation and swapping of render views.
RenderViewHostManager render_manager_;
// Manages injecting Java objects into all RenderViewHosts associated with
// this WebContentsImpl.
scoped_ptr<JavaBridgeDispatcherHostManager>
java_bridge_dispatcher_host_manager_;
// TODO(fsamuel): Remove this once upstreaming of the new browser plugin
// implementation is complete.
// Manages the browser plugin instances hosted by this WebContents.
scoped_ptr<content::old::BrowserPluginHost> old_browser_plugin_host_;
// SavePackage, lazily created.
scoped_refptr<SavePackage> save_package_;
// Data for loading state ----------------------------------------------------
// Indicates whether we're currently loading a resource.
bool is_loading_;
// Indicates if the tab is considered crashed.
base::TerminationStatus crashed_status_;
int crashed_error_code_;
// Whether this WebContents is waiting for a first-response for the
// main resource of the page. This controls whether the throbber state is
// "waiting" or "loading."
bool waiting_for_response_;
// Map of SiteInstance ID to max page ID for this tab. A page ID is specific
// to a given tab and SiteInstance, and must be valid for the lifetime of the
// WebContentsImpl.
std::map<int32, int32> max_page_ids_;
// System time at which the current load was started.
base::TimeTicks current_load_start_;
// The current load state and the URL associated with it.
net::LoadStateWithParam load_state_;
string16 load_state_host_;
// Upload progress, for displaying in the status bar.
// Set to zero when there is no significant upload happening.
uint64 upload_size_;
uint64 upload_position_;
// Data for current page -----------------------------------------------------
// When a title cannot be taken from any entry, this title will be used.
string16 page_title_when_no_navigation_entry_;
// When a navigation occurs, we record its contents MIME type. It can be
// used to check whether we can do something for some special contents.
std::string contents_mime_type_;
// Character encoding.
std::string encoding_;
// True if this is a secure page which displayed insecure content.
bool displayed_insecure_content_;
// Data for misc internal state ----------------------------------------------
// Whether the WebContents is currently being screenshotted.
bool capturing_contents_;
// See getter above.
bool is_being_destroyed_;
// Indicates whether we should notify about disconnection of this
// WebContentsImpl. This is used to ensure disconnection notifications only
// happen if a connection notification has happened and that they happen only
// once.
bool notify_disconnection_;
// Pointer to the JavaScript dialog creator, lazily assigned. Used because the
// delegate of this WebContentsImpl is nulled before its destructor is called.
content::JavaScriptDialogCreator* dialog_creator_;
#if defined(OS_WIN)
// Handle to an event that's set when the page is showing a message box (or
// equivalent constrained window). Plugin processes check this to know if
// they should pump messages then.
base::win::ScopedHandle message_box_active_;
#endif
// Set to true when there is an active "before unload" dialog. When true,
// we've forced the throbber to start in Navigate, and we need to remember to
// turn it off in OnJavaScriptMessageBoxClosed if the navigation is canceled.
bool is_showing_before_unload_dialog_;
// Settings that get passed to the renderer process.
content::RendererPreferences renderer_preferences_;
// If this tab was created from a renderer using window.open, this will be
// non-NULL and represent the WebUI of the opening renderer.
content::WebUI::TypeID opener_web_ui_type_;
// The time that we started to create the new tab page.
base::TimeTicks new_tab_start_time_;
// The time that we started to close this WebContents.
base::TimeTicks close_start_time_;
// The time that this tab was last selected.
base::TimeTicks last_selected_time_;
// See description above setter.
bool closed_by_user_gesture_;
// Minimum/maximum zoom percent.
int minimum_zoom_percent_;
int maximum_zoom_percent_;
// If true, the default zoom limits have been overriden for this tab, in which
// case we don't want saved settings to apply to it and we don't want to
// remember it.
bool temporary_zoom_settings_;
// The intrinsic size of the page.
gfx::Size preferred_size_;
// Content restrictions, used to disable print/copy etc based on content's
// (full-page plugins for now only) permissions.
int content_restrictions_;
// Color chooser that was opened by this tab.
content::ColorChooser* color_chooser_;
// Manages the embedder state for browser plugins, if this WebContents is an
// embedder; NULL otherwise.
scoped_ptr<content::BrowserPluginEmbedder> browser_plugin_embedder_;
// Manages the guest state for browser plugin, if this WebContents is a guest;
// NULL otherwise.
scoped_ptr<content::BrowserPluginGuest> browser_plugin_guest_;
// This must be at the end, or else we might get notifications and use other
// member variables that are gone.
content::NotificationRegistrar registrar_;
// Used during IPC message dispatching so that the handlers can get a pointer
// to the RVH through which the message was received.
content::RenderViewHost* message_source_;
DISALLOW_COPY_AND_ASSIGN(WebContentsImpl);
};
#endif // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_