Call media query change listeners asynchronously.

Source/core/dom/ScriptedAnimationController.cpp

 /*
  * Copyright (C) 2011 Google Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  *  THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
  *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  *  DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  *  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
 
 #include "config.h"
 #include "core/dom/ScriptedAnimationController.h"
 
+#include "core/css/MediaQueryListListener.h"
 #include "core/dom/Document.h"
 #include "core/dom/RequestAnimationFrameCallback.h"
 #include "core/events/Event.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/FrameView.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/inspector/InspectorTraceEvents.h"
 #include "core/loader/DocumentLoader.h"
 
 namespace WebCore {
@@ skipping 123 matching lines @@
             else
                 callback->handleEvent(highResNowMs);
             InspectorInstrumentation::didFireAnimationFrame(cookie);
             TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "UpdateCounters", "data", InspectorUpdateCountersEvent::data());
         }
     }
 
     m_callbacksToInvoke.clear();
 }
 
+void ScriptedAnimationController::callMediaQueryListListeners()
+{
+    MediaQueryListListeners listeners;
+    listeners.swap(m_mediaQueryListListeners);
+
+    for (MediaQueryListListeners::const_iterator it = m_mediaQueryListListeners.begin(), end = m_mediaQueryListListeners.end();
+        it != end; ++it) {
+        (*it)->call();
+    }
+}
+
 void ScriptedAnimationController::serviceScriptedAnimations(double monotonicTimeNow)
 {
-    if (!m_callbacks.size() && !m_eventQueue.size())
+    if (!m_callbacks.size() && !m_eventQueue.size() && !m_mediaQueryListListeners.size())
         return;
 
     if (m_suspendCount)
         return;
 
     RefPtrWillBeRawPtr<ScriptedAnimationController> protect(this);
 
+    callMediaQueryListListeners();
     dispatchEvents();
     executeCallbacks(monotonicTimeNow);
 
     scheduleAnimationIfNeeded();
 }
 
 void ScriptedAnimationController::enqueueEvent(PassRefPtrWillBeRawPtr<Event> event)
 {
     InspectorInstrumentation::didEnqueueEvent(event->target(), event.get());
     m_eventQueue.append(event);
     scheduleAnimationIfNeeded();
 }
 
 void ScriptedAnimationController::enqueuePerFrameEvent(PassRefPtrWillBeRawPtr<Event> event)
 {
     if (!m_perFrameEvents.add(eventTargetKey(event.get())).isNewEntry)
         return;
     enqueueEvent(event);
 }
 
+void ScriptedAnimationController::enqueueMediaQueryChangeListeners(WillBeHeapVector<RefPtrWillBeMember<MediaQueryListListener> >& listeners)
+{
+    for (size_t i = 0; i < listeners.size(); ++i) {
+        if (!m_mediaQueryListListeners.contains(listeners[i]))
+            m_mediaQueryListListeners.add(listeners[i]);

[esprehn, 2014/07/01 01:21:26]

You want a ListHashSet for this.

+    }
+    scheduleAnimationIfNeeded();
+}
+
 void ScriptedAnimationController::scheduleAnimationIfNeeded()
 {
     if (!m_document)
         return;
 
     if (m_suspendCount)
         return;
 
-    if (!m_callbacks.size() && !m_eventQueue.size())
+    if (!m_callbacks.size() && !m_eventQueue.size() && !m_mediaQueryListListeners.size())
         return;
 
     if (FrameView* frameView = m_document->view())
         frameView->scheduleAnimation();
 }
 
 }