FullscreenExitBubble temp UI for Mac.

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 821 matching lines @@
   // Figure out if there are tabs that have beforeunload handlers.
   bool TabsNeedBeforeUnloadFired();
 
   bool is_type_tabbed() const { return type_ == TYPE_TABBED; }
   bool is_type_popup() const { return type_ == TYPE_POPUP; }
   bool is_type_panel() const { return type_ == TYPE_PANEL; }
 
   bool is_app() const;
   bool is_devtools() const;
 
+  bool is_fullscreen_for_tab() const { return !!fullscreened_tab_; }

[Nico, 2011/09/15 04:37:32]

`return fullscreened_tab_ != NULL;` please

Also, I don't understand from the function name what this does.

(I looked at the comment for fullscreened_tab_ and didn't understand that
either. Is that the tab that was current when fullscreen was entered? Or the one
that's active when fullscreen is left? Or something else? What's this needed
for, why not a notification?)

[jeremya, 2011/09/15 06:33:28]

Done.
This is true when the current tab is in fullscreen mode as requested by
webkitRequestFullScreen. There can only be one such tab per browser window at a
time.

This is needed so we can avoid showing the bubble UI when entering FS mode as a
result of the user clicking the menu item ("Enter Presentation Mode"). I gather
from bug http://code.google.com/p/chromium/issues/detail?id=14471#c21 that this
is the desired behaviour.

+
  protected:
   // 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);
@@ skipping 572 matching lines @@
   // 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_