Create swapped-out opener RVHs after a process swap.

content/browser/web_contents/web_contents_impl.h

 // 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_
 #pragma once
 
 #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 "base/property_bag.h"
 #include "content/browser/browser_plugin/browser_plugin_web_contents_observer.h"
 #include "content/browser/renderer_host/java/java_bridge_dispatcher_host_manager.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/render_view_host_delegate.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/renderer_preferences.h"
 #include "net/base/load_states.h"
 #include "ui/gfx/size.h"
 #include "webkit/glue/resource_type.h"
 
 #if defined(OS_WIN)
 #include "base/win/scoped_handle.h"
 #endif
@@ skipping 17 matching lines @@
 struct LoadNotificationDetails;
 }
 
 namespace webkit_glue {
 struct WebIntentData;
 }
 
 class CONTENT_EXPORT WebContentsImpl
     : public NON_EXPORTED_BASE(content::WebContents),
       public content::RenderViewHostDelegate,
-      public RenderViewHostManager::Delegate {
+      public RenderViewHostManager::Delegate,
+      public content::NotificationObserver {
  public:
   // See WebContents::Create for a description of these parameters.
   WebContentsImpl(content::BrowserContext* browser_context,
                   content::SiteInstance* site_instance,
                   int routing_id,
                   const WebContentsImpl* base_web_contents,
+                  WebContentsImpl* opener,
                   SessionStorageNamespaceImpl* session_storage_namespace);
   virtual ~WebContentsImpl();
 
   // Returns the content specific prefs for the given RVH.
   static WebPreferences GetWebkitPrefs(
       content::RenderViewHost* rvh, const GURL& url);
 
   // Returns the SavePackage which manages the page saving job. May be NULL.
   SavePackage* save_package() const { return save_package_.get(); }
 
@@ skipping 34 matching lines @@
 
   // 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;
   }
 
-  void set_has_opener(bool has_opener) {
-    has_opener_ = has_opener;
-  }
-
   JavaBridgeDispatcherHostManager* java_bridge_dispatcher_host_manager() const {
     return java_bridge_dispatcher_host_manager_.get();
   }
 
   content::BrowserPluginWebContentsObserver*
       browser_plugin_web_contents_observer() const {
     return browser_plugin_web_contents_observer_.get();
   }
 
   // Like GetController from WebContents, but returns the concrete object.
@@ skipping 199 matching lines @@
   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) OVERRIDE;
   virtual void LostMouseLock() OVERRIDE;
 
   // RenderViewHostManager::Delegate -------------------------------------------
 
   virtual bool CreateRenderViewForRenderManager(
-      content::RenderViewHost* render_view_host) OVERRIDE;
+      content::RenderViewHost* render_view_host, int opener_route_id) OVERRIDE;
   virtual void BeforeUnloadFiredFromRenderManager(
       bool proceed,
       bool* proceed_to_fire_unload) OVERRIDE;
   virtual void DidStartLoadingFromRenderManager(
       content::RenderViewHost* render_view_host) 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;
+
  protected:
   friend class content::WebContentsObserver;
 
   // 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);
 
  private:
   friend class NavigationControllerImpl;
 
   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;
 
+  // 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);
 
   // IPC message handlers.
   void OnRegisterIntentService(const string16& action,
                                const string16& type,
                                const string16& href,
@@ skipping 106 matching lines @@
 
   // 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);
+
   // 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 GURL& referrer, bool is_main_frame);
 
   content::RenderViewHostImpl* GetRenderViewHostImpl();
 
   // Stores random bits of data for others to associate with this object.
   // WARNING: this needs to be deleted after NavigationController.
   base::PropertyBag property_bag_;
 
+  // Listen for notifications as well.
+  content::NotificationRegistrar registrar_;
+
   // 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_;
 
   // 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_;
 
@@ skipping 107 matching lines @@
   // 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_;
 
   // Our view type. Default is VIEW_TYPE_WEB_CONTENTS.
   content::ViewType view_type_;
 
-  // Is there an opener associated with this?
-  bool has_opener_;
-
   // Color chooser that was opened by this tab.
   content::ColorChooser* color_chooser_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsImpl);
 };
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_