Introduce KeyframeEffectReadOnly interface

third_party/WebKit/Source/core/animation/KeyframeEffectReadOnly.cpp

+// Copyright 2016 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 "core/animation/KeyframeEffectReadOnly.h"
+
+#include "bindings/core/v8/Dictionary.h"
+#include "bindings/core/v8/ExceptionState.h"
+#include "core/animation/EffectInput.h"
+#include "core/animation/KeyframeEffect.h"
+#include "core/animation/KeyframeEffectOptions.h"
+#include "core/animation/SampledEffect.h"
+#include "core/animation/TimingInput.h"
+#include "core/dom/Element.h"
+#include "core/frame/UseCounter.h"
+
+namespace blink {
+
+// Web Animations API Bindings constructors. We never actually want to create a
+// KeyframeEffectReadOnly object, we just want to provide a read-only interface
+// to the KeyframeEffect object, so pass straight through to the subclass
+// factory methods.
+KeyframeEffectReadOnly* KeyframeEffectReadOnly::create(ExecutionContext* executionContext, Element* element, const DictionarySequenceOrDictionary& effectInput, double duration, ExceptionState& exceptionState)
+{
+    return KeyframeEffect::create(executionContext, element, effectInput, duration, exceptionState);
+}
+
+KeyframeEffectReadOnly* KeyframeEffectReadOnly::create(ExecutionContext* executionContext, Element* element, const DictionarySequenceOrDictionary& effectInput, const KeyframeEffectOptions& timingInput, ExceptionState& exceptionState)
+{
+    return KeyframeEffect::create(executionContext, element, effectInput, timingInput, exceptionState);
+}
+
+KeyframeEffectReadOnly* KeyframeEffectReadOnly::create(ExecutionContext* executionContext, Element* element, const DictionarySequenceOrDictionary& effectInput, ExceptionState& exceptionState)
+{
+    return KeyframeEffect::create(executionContext, element, effectInput, exceptionState);
+}
+
+KeyframeEffectReadOnly::KeyframeEffectReadOnly(Element* target, EffectModel* model, const Timing& timing, EventDelegate* eventDelegate)
+    : AnimationEffectReadOnly(timing, eventDelegate)
+    , m_target(target)
+    , m_model(model)
+    , m_sampledEffect(nullptr)
+{
+}
+
+DEFINE_TRACE(KeyframeEffectReadOnly)
+{
+    visitor->trace(m_target);
+    visitor->trace(m_model);
+    visitor->trace(m_sampledEffect);
+    AnimationEffectReadOnly::trace(visitor);
+}
+
+} // namespace blink