Index: third_party/WebKit/Source/platform/animation/CompositorFloatAnimationCurve.h |
diff --git a/third_party/WebKit/Source/platform/animation/CompositorFloatAnimationCurve.h b/third_party/WebKit/Source/platform/animation/CompositorFloatAnimationCurve.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..1fb0469b6e4f25d2050a7b7a934bb53d91cf2c30 |
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+++ b/third_party/WebKit/Source/platform/animation/CompositorFloatAnimationCurve.h |
@@ -0,0 +1,59 @@ |
+// 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. |
+ |
+#ifndef CompositorFloatAnimationCurve_h |
+#define CompositorFloatAnimationCurve_h |
+ |
+#include "base/memory/scoped_ptr.h" |
+#include "platform/PlatformExport.h" |
+#include "platform/animation/CompositorAnimationCurve.h" |
+#include "platform/animation/CompositorFloatKeyframe.h" |
+#include "wtf/Noncopyable.h" |
+ |
+namespace cc { |
+class AnimationCurve; |
+class KeyframedFloatAnimationCurve; |
+} |
+ |
+namespace blink { |
+struct CompositorFloatKeyframe; |
+} |
+ |
+namespace blink { |
+ |
+// A keyframed float animation curve. |
+class PLATFORM_EXPORT CompositorFloatAnimationCurve : public CompositorAnimationCurve { |
+ WTF_MAKE_NONCOPYABLE(CompositorFloatAnimationCurve); |
+public: |
+ CompositorFloatAnimationCurve(); |
+ ~CompositorFloatAnimationCurve() override; |
+ |
+ // Adds the keyframe with the default timing function (ease). |
+ virtual void add(const CompositorFloatKeyframe&); |
+ virtual void add(const CompositorFloatKeyframe&, TimingFunctionType); |
+ // Adds the keyframe with a custom, bezier timing function. Note, it is |
+ // assumed that x0 = y0 , and x3 = y3 = 1. |
+ virtual void add(const CompositorFloatKeyframe&, double x1, double y1, double x2, double y2); |
+ // Adds the keyframe with a steps timing function. |
+ virtual void add(const CompositorFloatKeyframe&, int steps, float stepsStartOffset); |
+ |
+ virtual void setLinearTimingFunction(); |
+ virtual void setCubicBezierTimingFunction(TimingFunctionType); |
+ virtual void setCubicBezierTimingFunction(double x1, double y1, double x2, double y2); |
+ virtual void setStepsTimingFunction(int numberOfSteps, float stepsStartOffset); |
+ |
+ virtual float getValue(double time) const; |
+ |
+ // CompositorAnimationCurve implementation. |
+ AnimationCurveType type() const override; |
+ |
+ scoped_ptr<cc::AnimationCurve> cloneToAnimationCurve() const; |
+ |
+private: |
+ scoped_ptr<cc::KeyframedFloatAnimationCurve> m_curve; |
+}; |
+ |
+} // namespace blink |
+ |
+#endif // CompositorFloatAnimationCurve_h |