Fullscreen JS API implementation.

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 f54bcf50505712137a5a87b34461f1cbc9816a65..b19503566fbd203688ba289766f3c8c50bc70db0 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -259,7 +259,9 @@ Browser::Browser(Type type, Profile* profile)
       ALLOW_THIS_IN_INITIALIZER_LIST(
           synced_window_delegate_(
               new BrowserSyncedWindowDelegate(this))),
-      bookmark_bar_state_(BookmarkBar::HIDDEN) {
+      bookmark_bar_state_(BookmarkBar::HIDDEN),
+      fullscreened_tab_(NULL),
+      tab_caused_fullscreen_(false) {
   registrar_.Add(this, content::NOTIFICATION_SSL_VISIBLE_STATE_CHANGED,
                  NotificationService::AllSources());
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UPDATE_DISABLED,
@@ -1274,6 +1276,16 @@ void Browser::ShowSingletonTabOverwritingNTP(
 void Browser::WindowFullscreenStateChanged() {
   UpdateCommandsForFullscreenMode(window_->IsFullscreen());
   UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TOGGLE_FULLSCREEN);
+  MessageLoop::current()->PostTask(
+    FROM_HERE, method_factory_.NewRunnableMethod(

[Ben Goodger (Google), 2011/08/24 18:21:49]

4-space indents here

[koz (OOO until 15th September), 2011/08/24 21:39:33]

Done.

+    &Browser::NotifyFullscreenChange));
+}
+
+void Browser::NotifyFullscreenChange() {
+  NotificationService::current()->Notify(
+    chrome::NOTIFICATION_FULLSCREEN_CHANGED,

[Ben Goodger (Google), 2011/08/24 18:21:49]

and here

[koz (OOO until 15th September), 2011/08/24 21:39:33]

Done.

+    Source<Browser>(this),
+    NotificationService::NoDetails());
 }
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -1622,6 +1634,8 @@ void Browser::ConvertPopupToTabbedBrowser() {
 }
 
 void Browser::ToggleFullscreenMode() {
+  bool entering_fullscreen = !window_->IsFullscreen();
+
 #if !defined(OS_MACOSX)
   // In kiosk mode, we always want to be fullscreen. When the browser first
   // starts we're not yet fullscreen, so let the initial toggle go through.
@@ -1631,7 +1645,7 @@ void Browser::ToggleFullscreenMode() {
 #endif
 
   UserMetrics::RecordAction(UserMetricsAction("ToggleFullscreen"));
-  window_->SetFullscreen(!window_->IsFullscreen());
+  window_->SetFullscreen(entering_fullscreen);
 
   // Once the window has become fullscreen it'll call back to
   // WindowFullscreenStateChanged(). We don't do this immediately as
@@ -1643,6 +1657,16 @@ void Browser::ToggleFullscreenMode() {
 #if defined(OS_MACOSX)
   WindowFullscreenStateChanged();
 #endif
+
+  if (!entering_fullscreen)
+    NotifyTabOfFullscreenExitIfNecessary();
+}
+
+void Browser::NotifyTabOfFullscreenExitIfNecessary() {
+  if (fullscreened_tab_)
+    fullscreened_tab_->ExitFullscreenMode();
+  fullscreened_tab_ = NULL;
+  tab_caused_fullscreen_ = false;
 }
 
 #if defined(OS_MACOSX)
@@ -2958,6 +2982,8 @@ void Browser::TabDetachedAt(TabContentsWrapper* contents, int index) {
 }
 
 void Browser::TabDeactivated(TabContentsWrapper* contents) {
+  if (contents == fullscreened_tab_)
+    ExitTabbedFullscreenModeIfNecessary();
   if (instant())
     instant()->DestroyPreviewContents();
 
@@ -3552,6 +3578,25 @@ content::JavaScriptDialogCreator* Browser::GetJavaScriptDialogCreator() {
   return GetJavaScriptDialogCreatorInstance();
 }
 
+void Browser::ToggleFullscreenModeForTab(TabContents* tab,
+    bool enter_fullscreen) {
+  if (tab != GetSelectedTabContents())
+    return;
+  fullscreened_tab_ = enter_fullscreen ?
+      TabContentsWrapper::GetCurrentWrapperForContents(tab) : NULL;
+  if (enter_fullscreen && !window_->IsFullscreen())
+    tab_caused_fullscreen_ = true;
+  if (tab_caused_fullscreen_)
+    ToggleFullscreenMode();
+}
+
+void Browser::ExitTabbedFullscreenModeIfNecessary() {
+  if (tab_caused_fullscreen_)
+    ToggleFullscreenMode();
+  else
+    NotifyTabOfFullscreenExitIfNecessary();
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 // Browser, TabContentsWrapperDelegate implementation: