Devtools Animations: Basic animation inspection & control in Styles pane

Source/core/inspector/InspectorAnimationAgent.h

+// Copyright 2014 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.
+
+#ifndef InspectorAnimationAgent_h
+#define InspectorAnimationAgent_h
+
+#include "core/InspectorFrontend.h"
+#include "core/inspector/InspectorBaseAgent.h"
+#include "wtf/PassOwnPtr.h"
+#include "wtf/text/WTFString.h"
+
+namespace blink {
+
+class AnimationNode;
+class AnimationPlayer;
+class InspectorDOMAgent;
+
+class InspectorAnimationAgent final : public InspectorBaseAgent<InspectorAnimationAgent>, public InspectorBackendDispatcher::AnimationCommandHandler {
+    WTF_MAKE_NONCOPYABLE(InspectorAnimationAgent);
+public:
+    static PassOwnPtrWillBeRawPtr<InspectorAnimationAgent> create(InspectorDOMAgent* domAgent)
+    {
+        return adoptPtrWillBeNoop(new InspectorAnimationAgent(domAgent));
+    }
+
+    // Base agent methods.
+    virtual void setFrontend(InspectorFrontend*) override;
+    virtual void clearFrontend() override;
+    void reset();
+
+    // Protocol method implementations.
+    virtual void getAnimationPlayersForNode(ErrorString*, int nodeId, RefPtr<TypeBuilder::Array<TypeBuilder::Animation::AnimationPlayer> >& animationPlayersArray) override;
+    virtual void pauseAnimationPlayer(ErrorString*, const String& id, RefPtr<TypeBuilder::Animation::AnimationPlayer>&) override;
+    virtual void playAnimationPlayer(ErrorString*, const String& id, RefPtr<TypeBuilder::Animation::AnimationPlayer>&) override;
+    virtual void setAnimationPlayerCurrentTime(ErrorString*, const String& id, double currentTime, RefPtr<TypeBuilder::Animation::AnimationPlayer>&) override;
+    virtual void getAnimationPlayerState(ErrorString*, const String& id, double* currentTime, bool* isRunning) override;
+
+    // Methods for other agents to use.
+    AnimationPlayer* assertAnimationPlayer(ErrorString*, const String& id);
+
+    virtual void trace(Visitor*) override;
+
+private:
+    InspectorAnimationAgent(InspectorDOMAgent*);
+
+    String playerId(AnimationPlayer&);
+
+    PassRefPtr<TypeBuilder::Animation::AnimationPlayer> buildObjectForAnimationPlayer(AnimationPlayer&);
+    PassRefPtr<TypeBuilder::Animation::AnimationNode> buildObjectForAnimationNode(AnimationNode&);
+
+    RawPtrWillBeMember<InspectorDOMAgent> m_domAgent;
+    InspectorFrontend::Animation* m_frontend;
+    WillBeHeapHashMap<String, RefPtrWillBeMember<AnimationPlayer> > m_idToAnimationPlayer;
+};
+
+}
+
+#endif // InspectorAnimationAgent_h