| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "third_party/blink/renderer/core/animation/element_animations.h" |
| |
| #include "third_party/blink/renderer/core/css/css_property_equality.h" |
| #include "third_party/blink/renderer/core/css/properties/css_property.h" |
| #include "third_party/blink/renderer/core/style/computed_style.h" |
| |
| namespace blink { |
| |
| namespace { |
| |
| void UpdateAnimationFlagsForEffect(const KeyframeEffect& effect, |
| ComputedStyle& style) { |
| if (effect.Affects(PropertyHandle(GetCSSPropertyOpacity()))) |
| style.SetHasCurrentOpacityAnimation(true); |
| if (effect.Affects(PropertyHandle(GetCSSPropertyTransform())) || |
| effect.Affects(PropertyHandle(GetCSSPropertyRotate())) || |
| effect.Affects(PropertyHandle(GetCSSPropertyScale())) || |
| effect.Affects(PropertyHandle(GetCSSPropertyTranslate()))) |
| style.SetHasCurrentTransformAnimation(true); |
| if (effect.Affects(PropertyHandle(GetCSSPropertyFilter()))) |
| style.SetHasCurrentFilterAnimation(true); |
| if (effect.Affects(PropertyHandle(GetCSSPropertyBackdropFilter()))) |
| style.SetHasCurrentBackdropFilterAnimation(true); |
| } |
| |
| #if DCHECK_IS_ON() |
| // Under certain conditions ComputedStyle::operator==() may return false for |
| // differences that are permitted during an animation. |
| bool ShouldCheckComputedStyles(const ComputedStyle& base_computed_style, |
| const ComputedStyle& computed_style) { |
| // The FontFaceCache version number may be increased without forcing a style |
| // recalc (see crbug.com/471079). |
| if (!base_computed_style.GetFont().IsFallbackValid()) |
| return false; |
| // Images use instance equality rather than value equality (see |
| // crbug.com/781461). |
| for (CSSPropertyID id : |
| {CSSPropertyBackgroundImage, CSSPropertyWebkitMaskImage}) { |
| if (!CSSPropertyEquality::PropertiesEqual( |
| PropertyHandle(CSSProperty::Get(id)), base_computed_style, |
| computed_style)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| #endif // DCHECK_IS_ON() |
| |
| } // namespace |
| |
| ElementAnimations::ElementAnimations() : animation_style_change_(false) {} |
| |
| ElementAnimations::~ElementAnimations() = default; |
| |
| void ElementAnimations::UpdateAnimationFlags(ComputedStyle& style) { |
| for (const auto& entry : animations_) { |
| const Animation& animation = *entry.key; |
| DCHECK(animation.effect()); |
| // FIXME: Needs to consider AnimationGroup once added. |
| DCHECK(animation.effect()->IsKeyframeEffect()); |
| const KeyframeEffect& effect = *ToKeyframeEffect(animation.effect()); |
| if (!effect.IsCurrent()) |
| continue; |
| UpdateAnimationFlagsForEffect(effect, style); |
| } |
| |
| for (const auto& entry : worklet_animations_) { |
| const KeyframeEffect& effect = *entry->GetEffect(); |
| // TODO(majidvp): we should check the effect's phase before updating the |
| // style once the timing of effect is ready to use. |
| // https://crbug.com/814851. |
| UpdateAnimationFlagsForEffect(effect, style); |
| } |
| |
| if (style.HasCurrentOpacityAnimation()) { |
| style.SetIsRunningOpacityAnimationOnCompositor( |
| effect_stack_.HasActiveAnimationsOnCompositor( |
| PropertyHandle(GetCSSPropertyOpacity()))); |
| } |
| if (style.HasCurrentTransformAnimation()) { |
| style.SetIsRunningTransformAnimationOnCompositor( |
| effect_stack_.HasActiveAnimationsOnCompositor( |
| PropertyHandle(GetCSSPropertyTransform()))); |
| } |
| if (style.HasCurrentFilterAnimation()) { |
| style.SetIsRunningFilterAnimationOnCompositor( |
| effect_stack_.HasActiveAnimationsOnCompositor( |
| PropertyHandle(GetCSSPropertyFilter()))); |
| } |
| if (style.HasCurrentBackdropFilterAnimation()) { |
| style.SetIsRunningBackdropFilterAnimationOnCompositor( |
| effect_stack_.HasActiveAnimationsOnCompositor( |
| PropertyHandle(GetCSSPropertyBackdropFilter()))); |
| } |
| } |
| |
| void ElementAnimations::RestartAnimationOnCompositor() { |
| for (const auto& entry : animations_) |
| entry.key->RestartAnimationOnCompositor(); |
| } |
| |
| void ElementAnimations::Trace(blink::Visitor* visitor) { |
| visitor->Trace(css_animations_); |
| visitor->Trace(effect_stack_); |
| visitor->Trace(animations_); |
| visitor->Trace(worklet_animations_); |
| } |
| |
| const ComputedStyle* ElementAnimations::BaseComputedStyle() const { |
| // When DCHECK is on we lie and claim to never have a base computed style |
| // stored. This allows us to check that an invariant holds; see the comments in |
| // |UpdateBaseComputedStyle|. |
| #if !DCHECK_IS_ON() |
| if (IsAnimationStyleChange()) |
| return base_computed_style_.get(); |
| #endif |
| return nullptr; |
| } |
| |
| void ElementAnimations::UpdateBaseComputedStyle( |
| const ComputedStyle* computed_style) { |
| DCHECK(computed_style); |
| if (!IsAnimationStyleChange()) { |
| base_computed_style_ = nullptr; |
| return; |
| } |
| #if DCHECK_IS_ON() |
| // The invariant in the base computed style optimization is that as long as |
| // |IsAnimationStyleChange| is true, the computed style that would be |
| // generated by the style resolver is equivalent to the one we hold |
| // internally. To ensure this we disable the optimization when DCHECKs are |
| // enabled, but keep the internal base computed style and make sure the |
| // equivalency holds here. |
| if (base_computed_style_ && computed_style && |
| ShouldCheckComputedStyles(*base_computed_style_, *computed_style)) { |
| DCHECK(*base_computed_style_ == *computed_style); |
| } |
| #endif |
| base_computed_style_ = ComputedStyle::Clone(*computed_style); |
| } |
| |
| void ElementAnimations::ClearBaseComputedStyle() { |
| base_computed_style_ = nullptr; |
| } |
| |
| } // namespace blink |