Fullscreen JS API implementation.

chrome/browser/ui/browser.h

 // Copyright (c) 2011 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 CHROME_BROWSER_UI_BROWSER_H_
 #define CHROME_BROWSER_UI_BROWSER_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 454 matching lines @@
   void ShowSingletonTabOverwritingNTP(const browser::NavigateParams& params);
 
   // Creates a NavigateParams struct for a singleton tab navigation.
   browser::NavigateParams GetSingletonTabNavigateParams(const GURL& url);
 
   // Invoked when the fullscreen state of the window changes.
   // BrowserWindow::SetFullscreen invokes this after the window has become
   // fullscreen.
   void WindowFullscreenStateChanged();
 
+  // Sends a notification that the fullscreen state has changed.
+  void NotifyFullscreenChange();
+
   // Assorted browser commands ////////////////////////////////////////////////
 
   // NOTE: Within each of the following sections, the IDs are ordered roughly by
   // how they appear in the GUI/menus (left to right, top to bottom, etc.).
 
   // Navigation commands
   bool CanGoBack() const;
   void GoBack(WindowOpenDisposition disposition);
   bool CanGoForward() const;
   void GoForward(WindowOpenDisposition disposition);
@@ skipping 298 matching lines @@
   // Wrapper for the factory method in BrowserWindow. This allows subclasses to
   // set their own window.
   virtual BrowserWindow* CreateBrowserWindow();
 
  private:
   FRIEND_TEST_ALL_PREFIXES(AppModeTest, EnableAppModeTest);
   FRIEND_TEST_ALL_PREFIXES(BrowserTest, NoTabsInPopups);
   FRIEND_TEST_ALL_PREFIXES(BrowserTest, ConvertTabToAppShortcut);
   FRIEND_TEST_ALL_PREFIXES(BrowserTest, OpenAppWindowLikeNtp);
   FRIEND_TEST_ALL_PREFIXES(BrowserTest, AppIdSwitch);
+  FRIEND_TEST_ALL_PREFIXES(BrowserTest, TestToggleFullscreenModeForTab);
   FRIEND_TEST_ALL_PREFIXES(BrowserInitTest, OpenAppShortcutNoPref);
   FRIEND_TEST_ALL_PREFIXES(BrowserInitTest, OpenAppShortcutWindowPref);
   FRIEND_TEST_ALL_PREFIXES(BrowserInitTest, OpenAppShortcutTabPref);
   FRIEND_TEST_ALL_PREFIXES(BrowserInitTest, OpenAppShortcutPanel);
 
   // Used to describe why a tab is being detached. This is used by
   // TabDetachedAtImpl.
   enum DetachType {
     // Result of TabDetachedAt.
     DETACH_TYPE_DETACH,
@@ skipping 85 matching lines @@
       const history::HistoryAddPageArgs& add_page_args,
       NavigationType::Type navigation_type) OVERRIDE;
   virtual void ContentRestrictionsChanged(TabContents* source) OVERRIDE;
   virtual void RendererUnresponsive(TabContents* source) OVERRIDE;
   virtual void RendererResponsive(TabContents* source) OVERRIDE;
   virtual void WorkerCrashed(TabContents* source) OVERRIDE;
   virtual void DidNavigateMainFramePostCommit(TabContents* tab) OVERRIDE;
   virtual void DidNavigateToPendingEntry(TabContents* tab) OVERRIDE;
   virtual content::JavaScriptDialogCreator*
   GetJavaScriptDialogCreator() OVERRIDE;
+  virtual void ToggleFullscreenModeForTab(TabContents* tab,
+      bool enter_fullscreen) OVERRIDE;
 
   // Overridden from TabContentsWrapperDelegate:
   virtual void OnDidGetApplicationInfo(TabContentsWrapper* source,
                                        int32 page_id) OVERRIDE;
   virtual void OnInstallApplication(
       TabContentsWrapper* source,
       const WebApplicationInfo& app_info) OVERRIDE;
 
   // Note that the caller is responsible for deleting |old_tab_contents|.
   virtual void SwapTabContents(TabContentsWrapper* old_tab_contents,
@@ skipping 109 matching lines @@
   // this to return NULL if called before the toolbar has initialized.
   // TODO(beng): remove this.
   StatusBubble* GetStatusBubble();
 
   // Session restore functions ////////////////////////////////////////////////
 
   // Notifies the history database of the index for all tabs whose index is
   // >= index.
   void SyncHistoryWithTabs(int index);
 
+  // Tab fullscreen functions /////////////////////////////////////////////////
+
+  // There are two different kinds of fullscreen mode - "tab fullscreen" and
+  // "browser fullscreen". "Tab fullscreen" refers to when a tab enters
+  // fullscreen mode via the JS fullscreen API, and "browser fullscreen"
+  // refers to the user putting the browser itself into fullscreen mode from
+  // the UI. The difference is that tab fullscreen has implications for how
+  // the contents of the tab render (eg: a video element may grow to consume
+  // the whole tab), whereas browser fullscreen mode doesn't. Therefore if a
+  // user forces an exit from fullscreen, we need to notify the tab so it can
+  // stop rendering in its fullscreen mode.
+
+  // Make the current tab exit fullscreen mode if it is in it.
+  void ExitTabbedFullscreenModeIfNecessary();
+
+  // Notifies the tab that it has been forced out of fullscreen mode if
+  // necessary.
+  void NotifyTabOfFullscreenExitIfNecessary();
+
   // OnBeforeUnload handling //////////////////////////////////////////////////
 
   typedef std::set<TabContents*> UnloadListenerSet;
 
   // Processes the next tab that needs it's beforeunload/unload event fired.
   void ProcessPendingTabs();
 
   // Whether we've completed firing all the tabs' beforeunload/unload events.
   bool HasCompletedUnloadProcessing() const;
 
@@ skipping 103 matching lines @@
   // restrictions active.
   int GetContentRestrictionsForSelectedTab();
 
   // Resets |bookmark_bar_state_| based on the active tab. Notifies the
   // BrowserWindow if necessary.
   void UpdateBookmarkBarState(BookmarkBarStateChangeReason reason);
 
   // Open the bookmark manager with a defined hash action.
   void OpenBookmarkManagerWithHash(const std::string& action, int64 node_id);
 
+  // Make the current tab exit fullscreen mode. If the browser was fullscreen
+  // because of that (as opposed to the user clicking the fullscreen button)
+  // then take the browser out of fullscreen mode as well.
+  void ExitTabbedFullscreenMode();
+
+  // Notifies the tab that it has been forced out of fullscreen mode.
+  void NotifyTabOfFullscreenExit();
+
   // Data members /////////////////////////////////////////////////////////////
 
   NotificationRegistrar registrar_;
 
   PrefChangeRegistrar profile_pref_registrar_;
 
   PrefChangeRegistrar local_pref_registrar_;
 
   // This Browser's type.
   const Type type_;
@@ skipping 122 matching lines @@
   scoped_ptr<BrowserTabRestoreServiceDelegate> tab_restore_service_delegate_;
 
   // Helper which implements the SyncedWindowDelegate interface.
   scoped_ptr<BrowserSyncedWindowDelegate> synced_window_delegate_;
 
   scoped_ptr<InstantController> instant_;
   scoped_ptr<InstantUnloadHandler> instant_unload_handler_;
 
   BookmarkBar::State bookmark_bar_state_;
 
+  // Tab to notify when the browser exits fullscreen mode.
+  TabContentsWrapper* fullscreened_tab_;
+
+  // True if the current tab is in fullscreen mode.
+  bool tab_caused_fullscreen_;
+
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_H_