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 THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_EFFECT_STACK_H_ 32 #define THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_EFFECT_STACK_H_ 33 34 #include "base/macros.h" 35 #include "third_party/blink/renderer/core/animation/animation.h" 36 #include "third_party/blink/renderer/core/animation/effect_model.h" 37 #include "third_party/blink/renderer/core/animation/keyframe_effect.h" 38 #include "third_party/blink/renderer/core/animation/property_handle.h" 39 #include "third_party/blink/renderer/core/animation/sampled_effect.h" 40 #include "third_party/blink/renderer/core/core_export.h" 41 #include "third_party/blink/renderer/core/css/properties/css_bitset.h" 42 #include "third_party/blink/renderer/platform/geometry/float_box.h" 43 #include "third_party/blink/renderer/platform/wtf/hash_set.h" 44 #include "third_party/blink/renderer/platform/wtf/vector.h" 45 46 namespace blink { 47 48 class InertEffect; 49 50 // Represents the order in which a sequence of SampledEffects should apply. 51 // This sequence is broken down to per PropertyHandle granularity. 52 class CORE_EXPORT EffectStack { 53 DISALLOW_NEW(); 54 55 public: 56 EffectStack(); 57 Add(SampledEffect * sampled_effect)58 void Add(SampledEffect* sampled_effect) { 59 sampled_effects_.push_back(sampled_effect); 60 } 61 static bool CompareSampledEffects(const Member<SampledEffect>&, 62 const Member<SampledEffect>&); IsEmpty()63 bool IsEmpty() const { return sampled_effects_.IsEmpty(); } 64 bool HasActiveAnimationsOnCompositor(const PropertyHandle&) const; 65 66 using PropertyHandleFilter = bool (*)(const PropertyHandle&); 67 bool AffectsProperties(PropertyHandleFilter) const; 68 bool AffectsProperties(const CSSBitset&, 69 KeyframeEffect::Priority priority) const; 70 bool HasRevert() const; 71 72 // Produces a map of properties to active effects. 73 // |effect_stack| contains the sequence of sample effects for an element. 74 // |new_animations| is an optional list of animations to be explicitly added 75 // to the active animations map. 76 // |suppressed_animations| is an optional list of animations to ignore. 77 // |priority| is for matching the effect priority and may be kDefaultPriority 78 // or kTransitionPriority. 79 // |property_handle_filter| is an optional filter for determining which 80 // properties to include in the interpolations map. 81 // |partial_effect_stack_cutoff| is an optional cutoff point, used to create 82 // a partial effect stack. 83 static ActiveInterpolationsMap ActiveInterpolations( 84 EffectStack* effect_stack, 85 const HeapVector<Member<const InertEffect>>* new_animations, 86 const HeapHashSet<Member<const Animation>>* suppressed_animations, 87 KeyframeEffect::Priority priority, 88 PropertyHandleFilter property_handle_filter = nullptr, 89 KeyframeEffect* partial_effect_stack_cutoff = nullptr); 90 91 void Trace(Visitor*) const; 92 93 private: 94 void RemoveRedundantSampledEffects(); 95 96 // Effects sorted by priority. Lower priority at the start of the list. 97 HeapVector<Member<SampledEffect>> sampled_effects_; 98 99 friend class AnimationEffectStackTest; 100 DISALLOW_COPY_AND_ASSIGN(EffectStack); 101 }; 102 103 } // namespace blink 104 105 #endif // THIRD_PARTY_BLINK_RENDERER_CORE_ANIMATION_EFFECT_STACK_H_ 106