Queue Flash mouselock request if fullscreen is pending

webkit/plugins/ppapi/ppapi_plugin_instance.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 "webkit/plugins/ppapi/ppapi_plugin_instance.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/memory/linked_ptr.h"
@@ skipping 1329 matching lines @@
     if (!delay_report) {
       ReportGeometry();
     } else {
       MessageLoop::current()->PostTask(
           FROM_HERE, base::Bind(&PluginInstance::ReportGeometry, this));
     }
   }
 }
 
 void PluginInstance::UpdateFlashFullscreenState(bool flash_fullscreen) {
-  if (flash_fullscreen == flash_fullscreen_)
+  bool is_mouselock_pending = TrackedCallback::IsPending(lock_mouse_callback_);
+
+  if (flash_fullscreen == flash_fullscreen_) {
+    // Manually clear callback when fullscreen fails with mouselock pending.
+    if (!flash_fullscreen && is_mouselock_pending)
+      TrackedCallback::ClearAndRun(&lock_mouse_callback_, PP_ERROR_FAILED);
     return;
+  }
 
   bool old_plugin_focus = PluginHasFocus();
   flash_fullscreen_ = flash_fullscreen;
+  if (is_mouselock_pending && !delegate()->IsMouseLocked(this)) {
+    if (!delegate()->LockMouse(this))
+      TrackedCallback::ClearAndRun(&lock_mouse_callback_, PP_ERROR_FAILED);
+  }
+
   if (PluginHasFocus() != old_plugin_focus)
     SendFocusChangeNotification();
 }
 
 int32_t PluginInstance::Navigate(PPB_URLRequestInfo_Impl* request,
                                  const char* target,
                                  bool from_user_action) {
   if (!container_)
     return PP_ERROR_FAILED;
 
@@ skipping 619 matching lines @@
                                   scoped_refptr<TrackedCallback> callback) {
   if (TrackedCallback::IsPending(lock_mouse_callback_))
     return PP_ERROR_INPROGRESS;
 
   if (delegate()->IsMouseLocked(this))
     return PP_OK;
 
   if (!CanAccessMainFrame())
     return PP_ERROR_NOACCESS;
 
-  if (delegate()->LockMouse(this)) {
-    lock_mouse_callback_ = callback;
-    return PP_OK_COMPLETIONPENDING;
-  } else {
-    return PP_ERROR_FAILED;
+  // Attempt mouselock only if Flash isn't waiting on fullscreen, otherwise
+  // we wait and call LockMouse() in UpdateFlashFullscreenState().
+  if (!FlashIsFullscreenOrPending() || flash_fullscreen()) {
+    if (!delegate()->LockMouse(this))
+      return PP_ERROR_FAILED;
   }
+
+  // Either mouselock succeeded or a Flash fullscreen is pending.
+  lock_mouse_callback_ = callback;
+  return PP_OK_COMPLETIONPENDING;
 }
 
 void PluginInstance::UnlockMouse(PP_Instance instance) {
   delegate()->UnlockMouse(this);
 }
 
 PP_Bool PluginInstance::GetDefaultPrintSettings(
     PP_Instance instance,
     PP_PrintSettings_Dev* print_settings) {
   // TODO(raymes): Not implemented for in-process.
@@ skipping 214 matching lines @@
   screen_size_for_fullscreen_ = gfx::Size();
   WebElement element = container_->element();
   element.setAttribute(WebString::fromUTF8(kWidth), width_before_fullscreen_);
   element.setAttribute(WebString::fromUTF8(kHeight), height_before_fullscreen_);
   element.setAttribute(WebString::fromUTF8(kBorder), border_before_fullscreen_);
   element.setAttribute(WebString::fromUTF8(kStyle), style_before_fullscreen_);
 }
 
 }  // namespace ppapi
 }  // namespace webkit