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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef WebScrollOffsetAnimationCurve_h | |
6 #define WebScrollOffsetAnimationCurve_h | |
7 | |
8 #include "WebCompositorAnimationCurve.h" | |
9 #include "WebFloatPoint.h" | |
10 | |
11 namespace blink { | |
12 | |
13 class WebScrollOffsetAnimationCurve : public WebCompositorAnimationCurve { | |
14 public: | |
15 virtual ~WebScrollOffsetAnimationCurve() { } | |
16 | |
17 enum ScrollDurationBehavior { | |
18 ScrollDurationDeltaBased = 0, | |
19 ScrollDurationConstant, | |
20 ScrollDurationInverseDelta | |
21 }; | |
22 | |
23 virtual void setInitialValue(WebFloatPoint) = 0; | |
24 virtual WebFloatPoint getValue(double time) const = 0; | |
25 virtual double duration() const = 0; | |
26 virtual WebFloatPoint targetValue() const = 0; | |
27 virtual void updateTarget(double time, WebFloatPoint newTarget) = 0; | |
28 }; | |
29 | |
30 } // namespace blink | |
31 | |
32 #endif // WebScrollOffsetAnimationCurve_h | |
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