1/*
2 * Copyright (C) 2012 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1.  Redistributions of source code must retain the above copyright
8 *     notice, this list of conditions and the following disclaimer.
9 * 2.  Redistributions in binary form must reproduce the above copyright
10 *     notice, this list of conditions and the following disclaimer in the
11 *     documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#ifndef WebTransformAnimationCurve_h
26#define WebTransformAnimationCurve_h
27
28#include "WebCommon.h"
29#include "WebCompositorAnimationCurve.h"
30#include "WebTransformKeyframe.h"
31
32namespace blink {
33
34// A keyframed transform animation curve.
35class WebTransformAnimationCurve : public WebCompositorAnimationCurve {
36public:
37    virtual ~WebTransformAnimationCurve() { }
38
39    // Adds the keyframe with the default timing function (ease).
40    virtual void add(const WebTransformKeyframe&) = 0;
41    virtual void add(const WebTransformKeyframe&, TimingFunctionType) = 0;
42    // Adds the keyframe with a custom, bezier timing function. Note, it is
43    // assumed that x0 = y0 = 0, and x3 = y3 = 1.
44    virtual void add(const WebTransformKeyframe&, double x1, double y1, double x2, double y2) = 0;
45};
46
47} // namespace blink
48
49#endif // WebTransformAnimationCurve_h
50