1/*
2 * Copyright (C) 2013 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef AnimationStack_h
32#define AnimationStack_h
33
34#include "core/animation/Animation.h"
35#include "core/animation/AnimationEffect.h"
36#include "core/animation/AnimationPlayer.h"
37#include "core/animation/SampledEffect.h"
38#include "platform/geometry/FloatBox.h"
39#include "wtf/HashSet.h"
40#include "wtf/Vector.h"
41
42namespace blink {
43
44class InertAnimation;
45
46class AnimationStack {
47    DISALLOW_ALLOCATION();
48    WTF_MAKE_NONCOPYABLE(AnimationStack);
49public:
50    AnimationStack();
51
52    void add(PassOwnPtrWillBeRawPtr<SampledEffect> effect) { m_effects.append(effect); }
53    bool isEmpty() const { return m_effects.isEmpty(); }
54    bool affects(CSSPropertyID) const;
55    bool hasActiveAnimationsOnCompositor(CSSPropertyID) const;
56    static WillBeHeapHashMap<CSSPropertyID, RefPtrWillBeMember<Interpolation> > activeInterpolations(AnimationStack*, const WillBeHeapVector<RawPtrWillBeMember<InertAnimation> >* newAnimations, const WillBeHeapHashSet<RawPtrWillBeMember<const AnimationPlayer> >* cancelledAnimationPlayers, Animation::Priority, double timelineCurrentTime);
57
58    bool getAnimatedBoundingBox(FloatBox&, CSSPropertyID) const;
59    void trace(Visitor*);
60
61private:
62    void simplifyEffects();
63    // Effects sorted by priority. Lower priority at the start of the list.
64    WillBeHeapVector<OwnPtrWillBeMember<SampledEffect> > m_effects;
65
66    friend class AnimationAnimationStackTest;
67};
68
69} // namespace blink
70
71#endif
72