bool AnimationController::updateAnimations(RenderElement& renderer, const RenderStyle& newStyle, std::unique_ptr<RenderStyle>& animatedStyle) { auto* oldStyle = renderer.hasInitializedStyle() ? &renderer.style() : nullptr; if ((!oldStyle || (!oldStyle->animations() && !oldStyle->transitions())) && (!newStyle.animations() && !newStyle.transitions())) return false; if (renderer.document().pageCacheState() != Document::NotInPageCache) return false; // Don't run transitions when printing. if (renderer.view().printing()) return false; // Fetch our current set of implicit animations from a hashtable. We then compare them // against the animations in the style and make sure we're in sync. If destination values // have changed, we reset the animation. We then do a blend to get new values and we return // a new style. // We don't support anonymous pseudo elements like :first-line or :first-letter. ASSERT(renderer.element()); CompositeAnimation& rendererAnimations = m_data->ensureCompositeAnimation(renderer); bool animationStateChanged = rendererAnimations.animate(renderer, oldStyle, newStyle, animatedStyle); if (renderer.parent() || newStyle.animations() || (oldStyle && oldStyle->animations())) { m_data->updateAnimationTimerForRenderer(renderer); #if ENABLE(REQUEST_ANIMATION_FRAME) renderer.view().frameView().scheduleAnimation(); #endif } return animationStateChanged; }
PassRef<RenderStyle> AnimationController::updateAnimations(RenderElement& renderer, PassRef<RenderStyle> newStyle) { // Don't do anything if we're in the cache if (renderer.document().inPageCache()) return newStyle; RenderStyle* oldStyle = renderer.hasInitializedStyle() ? &renderer.style() : nullptr; if ((!oldStyle || (!oldStyle->animations() && !oldStyle->transitions())) && (!newStyle.get().animations() && !newStyle.get().transitions())) return newStyle; // Don't run transitions when printing. if (renderer.view().printing()) return newStyle; // Fetch our current set of implicit animations from a hashtable. We then compare them // against the animations in the style and make sure we're in sync. If destination values // have changed, we reset the animation. We then do a blend to get new values and we return // a new style. // We don't support anonymous pseudo elements like :first-line or :first-letter. ASSERT(renderer.element()); Ref<RenderStyle> newStyleBeforeAnimation(std::move(newStyle)); CompositeAnimation& rendererAnimations = m_data->ensureCompositeAnimation(&renderer); auto blendedStyle = rendererAnimations.animate(renderer, oldStyle, newStyleBeforeAnimation.get()); if (renderer.parent() || newStyleBeforeAnimation->animations() || (oldStyle && oldStyle->animations())) { m_data->updateAnimationTimerForRenderer(&renderer); #if ENABLE(REQUEST_ANIMATION_FRAME) renderer.view().frameView().scheduleAnimation(); #endif } if (&blendedStyle.get() != &newStyleBeforeAnimation.get()) { // If the animations/transitions change opacity or transform, we need to update // the style to impose the stacking rules. Note that this is also // done in StyleResolver::adjustRenderStyle(). if (blendedStyle.get().hasAutoZIndex() && (blendedStyle.get().opacity() < 1.0f || blendedStyle.get().hasTransform())) blendedStyle.get().setZIndex(0); } return blendedStyle; }