Embed Flash Fullscreen widget within browser window.

chrome/browser/ui/fullscreen/fullscreen_controller.cc

 // 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.
 
 #include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/app_mode/app_mode_utils.h"
@@ skipping 85 matching lines @@
 #if defined(OS_WIN)
   // For now, avoid breaking when initiating full screen tab mode while in
   // a metro snap.
   // TODO(robertshield): Find a way to reconcile tab-initiated fullscreen
   //                     modes with metro snap.
   if (IsInMetroSnapMode())
     return;
 #endif
 
   bool in_browser_or_tab_fullscreen_mode = window_->IsFullscreen();
-  bool window_is_fullscreen_with_chrome = false;
-#if defined(OS_MACOSX)
-  window_is_fullscreen_with_chrome = window_->IsFullscreenWithChrome();
-#endif
 
   if (enter_fullscreen) {
     SetFullscreenedTab(web_contents);
     if (!in_browser_or_tab_fullscreen_mode) {
       state_prior_to_tab_fullscreen_ = STATE_NORMAL;
       ToggleFullscreenModeInternal(TAB);
-    } else if (window_is_fullscreen_with_chrome) {
 #if defined(OS_MACOSX)
+    } else if (window_->IsFullscreenWithChrome()) {

[yzshen1, 2013/09/12 18:39:43]

It is better not to put part of the if...else if...else struct inside #if. #if
should enclose complete statements.

[miu, 2013/09/12 23:16:44]

Done.  I was attempting to clean things up to be more readable.

       state_prior_to_tab_fullscreen_ = STATE_BROWSER_FULLSCREEN_WITH_CHROME;
       EnterFullscreenModeInternal(TAB);
-#else
-      NOTREACHED();
 #endif
     } else {
       state_prior_to_tab_fullscreen_ = STATE_BROWSER_FULLSCREEN_NO_CHROME;
 
       // We need to update the fullscreen exit bubble, e.g., going from browser
       // fullscreen to tab fullscreen will need to show different content.
       const GURL& url = web_contents->GetURL();
       if (!tab_fullscreen_accepted_) {
         tab_fullscreen_accepted_ =
             GetFullscreenSetting(url) == CONTENT_SETTING_ALLOW;
@@ skipping 96 matching lines @@
     web_contents->GotResponseToLockMouseRequest(false);
     return;
   }
   SetMouseLockTab(web_contents);
   FullscreenExitBubbleType bubble_type = GetFullscreenExitBubbleType();
 
   switch (GetMouseLockSetting(web_contents->GetURL())) {
     case CONTENT_SETTING_ALLOW:
       // If bubble already displaying buttons we must not lock the mouse yet,
       // or it would prevent pressing those buttons. Instead, merge the request.
-      if (fullscreen_bubble::ShowButtonsForType(bubble_type)) {
+      if (!IsPrivilegedFullscreenForTab() &&
+          fullscreen_bubble::ShowButtonsForType(bubble_type)) {
         mouse_lock_state_ = MOUSELOCK_REQUESTED;
       } else {
         // Lock mouse.
         if (web_contents->GotResponseToLockMouseRequest(true)) {
           if (last_unlocked_by_target) {
             mouse_lock_state_ = MOUSELOCK_ACCEPTED_SILENTLY;
           } else {
             mouse_lock_state_ = MOUSELOCK_ACCEPTED;
           }
         } else {
@@ skipping 255 matching lines @@
     state_prior_to_tab_fullscreen_ = STATE_INVALID;
     tab_fullscreen_accepted_ = false;
     if (rvh)
       rvh->ExitFullscreen();
   }
 
   if (mouse_lock_tab_) {
     if (IsMouseLockRequested()) {
       mouse_lock_tab_->GotResponseToLockMouseRequest(false);
       NotifyMouseLockChange();
-    } else if (mouse_lock_tab_->GetRenderViewHost() &&
-               mouse_lock_tab_->GetRenderViewHost()->GetView()) {
-      mouse_lock_tab_->GetRenderViewHost()->GetView()->UnlockMouse();
+    } else {
+      UnlockMouse();
     }
     SetMouseLockTab(NULL);
     mouse_lock_state_ = MOUSELOCK_NOT_REQUESTED;
   }
 
   UpdateFullscreenExitBubbleContent();
 }
 
 void FullscreenController::NotifyMouseLockChange() {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_MOUSE_LOCK_CHANGED,
       content::Source<FullscreenController>(this),
       content::NotificationService::NoDetails());
 }
 
-// TODO(koz): Change |for_tab| to an enum.
 void FullscreenController::ToggleFullscreenModeInternal(
     FullscreenInternalOption option) {
 #if defined(OS_WIN)
   // When in Metro snap mode, toggling in and out of fullscreen is prevented.
   if (IsInMetroSnapMode())
     return;
 #endif
 
   bool enter_fullscreen = !window_->IsFullscreen();
 #if defined(OS_MACOSX)
@@ skipping 94 matching lines @@
     ToggleFullscreenModeForTab(fullscreened_tab_, false);
   else
     NotifyTabOfExitIfNecessary();
 }
 
 void FullscreenController::UpdateFullscreenExitBubbleContent() {
   GURL url = GetFullscreenExitBubbleURL();
   FullscreenExitBubbleType bubble_type = GetFullscreenExitBubbleType();
 
   // If bubble displays buttons, unlock mouse to allow pressing them.
-  if (fullscreen_bubble::ShowButtonsForType(bubble_type) &&
-      IsMouseLocked() &&
-      mouse_lock_tab_ &&
-      mouse_lock_tab_->GetRenderViewHost() &&
-      mouse_lock_tab_->GetRenderViewHost()->GetView()) {
-    mouse_lock_tab_->GetRenderViewHost()->GetView()->UnlockMouse();
-  }
+  if (fullscreen_bubble::ShowButtonsForType(bubble_type) && IsMouseLocked())
+    UnlockMouse();
 
   window_->UpdateFullscreenExitBubbleContent(url, bubble_type);
 }
 
 ContentSetting
 FullscreenController::GetFullscreenSetting(const GURL& url) const {
-  if (url.SchemeIsFile())
+  if (IsPrivilegedFullscreenForTab() || url.SchemeIsFile())
     return CONTENT_SETTING_ALLOW;
 
   return profile_->GetHostContentSettingsMap()->GetContentSetting(url, url,
       CONTENT_SETTINGS_TYPE_FULLSCREEN, std::string());
 }
 
 ContentSetting
 FullscreenController::GetMouseLockSetting(const GURL& url) const {
-  if (url.SchemeIsFile())
+  if (IsPrivilegedFullscreenForTab() || url.SchemeIsFile())
     return CONTENT_SETTING_ALLOW;
 
   HostContentSettingsMap* settings_map = profile_->GetHostContentSettingsMap();
   return settings_map->GetContentSetting(url, url,
       CONTENT_SETTINGS_TYPE_MOUSELOCK, std::string());
 }
+
+bool FullscreenController::IsPrivilegedFullscreenForTab() const {
+  return fullscreened_tab_ &&
+      fullscreened_tab_->GetFullscreenRenderWidgetHostView() &&
+      implicit_cast<const content::WebContentsDelegate*>(browser_)->
+          EmbedsFullscreenWidget();
+}
+
+void FullscreenController::UnlockMouse() {
+  if (!mouse_lock_tab_)
+    return;
+  content::RenderWidgetHostView* mouse_lock_view =
+      (fullscreened_tab_ == mouse_lock_tab_ && IsPrivilegedFullscreenForTab()) ?
+      mouse_lock_tab_->GetFullscreenRenderWidgetHostView() : NULL;
+  if (!mouse_lock_view) {
+    RenderViewHost* const rvh = mouse_lock_tab_->GetRenderViewHost();
+    if (rvh)
+      mouse_lock_view = rvh->GetView();
+  }
+  if (mouse_lock_view)
+    mouse_lock_view->UnlockMouse();
+}