FullscreenExitBubble temp UI for Mac.

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index bd221324a48707e3d077e8616bbcf3923e937611..ec2aa7360811d23a9aee4e340f9232049a92a49a 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -1314,7 +1314,13 @@ void Browser::WindowFullscreenStateChanged() {
   MessageLoop::current()->PostTask(
       FROM_HERE, method_factory_.NewRunnableMethod(
       &Browser::NotifyFullscreenChange));
-  if (!window_->IsFullscreen())
+  bool notify_tab_of_exit;
+#if defined(OS_MACOSX)
+  notify_tab_of_exit = !window_->InPresentationMode();
+#else
+  notify_tab_of_exit = !window_->IsFullscreen();
+#endif
+  if (notify_tab_of_exit)
     NotifyTabOfFullscreenExitIfNecessary();
 }
 
@@ -3831,10 +3837,21 @@ void Browser::ToggleFullscreenModeForTab(TabContents* tab,
     return;
   fullscreened_tab_ = enter_fullscreen ?
       TabContentsWrapper::GetCurrentWrapperForContents(tab) : NULL;
-  if (enter_fullscreen && !window_->IsFullscreen())
+  bool in_correct_mode_for_tab_fullscreen;
+#if defined(OS_MACOSX)
+  in_correct_mode_for_tab_fullscreen = window_->InPresentationMode();
+#else
+  in_correct_mode_for_tab_fullscreen = window_->IsFullscreen();
+#endif
+  if (enter_fullscreen && !in_correct_mode_for_tab_fullscreen)
     tab_caused_fullscreen_ = true;
-  if (tab_caused_fullscreen_)
+  if (tab_caused_fullscreen_) {
+#if defined(OS_MACOSX)

[Nico, 2011/09/16 17:20:43]

So the mode on OS X where the browser is still usable for browsing and is really
just in a fullscreen mode is called presentation mode, while the mode on windows
where only the current tab can be used and which isn't good for anything but
giving presentations is called fullscreen mode? Weird. (Nothing for you to do
here)

[jeremya, 2011/09/16 18:16:52]

In Lion, 'fullscreen' mode can mean either:
- 'presentation mode', in which the chrome is hidden by default and appears when
you mouse to the top of the screen
- Lion-style fullscreen mode, meaning that the chrome is permanently visible.

Content-initiated fullscreen mode makes use of the former.

The logic for the transitions between the various states is pretty messy; I'll
try to clean it up in a followup CL.

+    TogglePresentationMode();
+#else
     ToggleFullscreenMode();
+#endif
+  }
 }
 
 void Browser::JSOutOfMemory(TabContents* tab) {