зеркало из https://github.com/mozilla/gecko-dev.git
134 строки
4.6 KiB
C++
134 строки
4.6 KiB
C++
/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsAnimationManager_h_
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#define nsAnimationManager_h_
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#include "AnimationCommon.h"
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#include "nsCSSPseudoElements.h"
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#include "nsStyleContext.h"
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#include "nsDataHashtable.h"
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#include "nsGUIEvent.h"
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#include "mozilla/TimeStamp.h"
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#include "nsThreadUtils.h"
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class nsCSSKeyframesRule;
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struct AnimationPropertySegment;
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struct ElementAnimation;
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struct ElementAnimations;
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namespace mozilla {
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namespace css {
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class Declaration;
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}
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}
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class nsAnimationManager : public mozilla::css::CommonAnimationManager
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{
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public:
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nsAnimationManager(nsPresContext *aPresContext)
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: mozilla::css::CommonAnimationManager(aPresContext),
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mKeyframesListIsDirty(true)
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{
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mKeyframesRules.Init(16); // FIXME: make infallible!
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}
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struct AnimationEventInfo {
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nsRefPtr<mozilla::dom::Element> mElement;
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nsAnimationEvent mEvent;
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AnimationEventInfo(mozilla::dom::Element *aElement,
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const nsString& aAnimationName,
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PRUint32 aMessage, mozilla::TimeDuration aElapsedTime)
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: mElement(aElement),
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mEvent(true, aMessage, aAnimationName, aElapsedTime.ToSeconds())
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{
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}
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// nsAnimationEvent doesn't support copy-construction, so we need
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// to ourselves in order to work with nsTArray
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AnimationEventInfo(const AnimationEventInfo &aOther)
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: mElement(aOther.mElement),
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mEvent(true, aOther.mEvent.message,
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aOther.mEvent.animationName, aOther.mEvent.elapsedTime)
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{
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}
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};
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// nsIStyleRuleProcessor (parts)
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virtual void RulesMatching(ElementRuleProcessorData* aData);
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virtual void RulesMatching(PseudoElementRuleProcessorData* aData);
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virtual void RulesMatching(AnonBoxRuleProcessorData* aData);
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#ifdef MOZ_XUL
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virtual void RulesMatching(XULTreeRuleProcessorData* aData);
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#endif
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virtual NS_MUST_OVERRIDE size_t
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SizeOfExcludingThis(nsMallocSizeOfFun aMallocSizeOf) const MOZ_OVERRIDE;
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virtual NS_MUST_OVERRIDE size_t
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SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const MOZ_OVERRIDE;
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// nsARefreshObserver
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virtual void WillRefresh(mozilla::TimeStamp aTime);
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/**
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* Return the style rule that RulesMatching should add for
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* aStyleContext. This might be different from what RulesMatching
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* actually added during aStyleContext's construction because the
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* element's animation-name may have changed. (However, this does
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* return null during the non-animation restyling phase, as
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* RulesMatching does.)
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*
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* aStyleContext may be a style context for aElement or for its
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* :before or :after pseudo-element.
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*/
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nsIStyleRule* CheckAnimationRule(nsStyleContext* aStyleContext,
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mozilla::dom::Element* aElement);
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void KeyframesListIsDirty() {
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mKeyframesListIsDirty = true;
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}
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typedef InfallibleTArray<AnimationEventInfo> EventArray;
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/**
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* Dispatch any pending events. We accumulate animationend and
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* animationiteration events only during refresh driver notifications
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* (and dispatch them at the end of such notifications), but we
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* accumulate animationstart events at other points when style
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* contexts are created.
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*/
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void DispatchEvents() {
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// Fast-path the common case: no events
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if (!mPendingEvents.IsEmpty()) {
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DoDispatchEvents();
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}
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}
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private:
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ElementAnimations* GetElementAnimations(mozilla::dom::Element *aElement,
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nsCSSPseudoElements::Type aPseudoType,
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bool aCreateIfNeeded);
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void BuildAnimations(nsStyleContext* aStyleContext,
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InfallibleTArray<ElementAnimation>& aAnimations);
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bool BuildSegment(InfallibleTArray<AnimationPropertySegment>& aSegments,
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nsCSSProperty aProperty, const nsAnimation& aAnimation,
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float aFromKey, nsStyleContext* aFromContext,
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mozilla::css::Declaration* aFromDeclaration,
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float aToKey, nsStyleContext* aToContext);
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nsIStyleRule* GetAnimationRule(mozilla::dom::Element* aElement,
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nsCSSPseudoElements::Type aPseudoType);
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nsCSSKeyframesRule* KeyframesRuleFor(const nsSubstring& aName);
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// The guts of DispatchEvents
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void DoDispatchEvents();
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bool mKeyframesListIsDirty;
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nsDataHashtable<nsStringHashKey, nsCSSKeyframesRule*> mKeyframesRules;
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EventArray mPendingEvents;
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};
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#endif /* !defined(nsAnimationManager_h_) */
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