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81 lines
3.2 KiB
C++
81 lines
3.2 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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/* Code to start and animate CSS transitions. */
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#ifndef nsTransitionManager_h_
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#define nsTransitionManager_h_
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#include "AnimationCommon.h"
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#include "nsCSSPseudoElements.h"
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class nsStyleContext;
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class nsPresContext;
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class nsCSSPropertySet;
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struct nsTransition;
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struct ElementTransitions;
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class nsTransitionManager : public mozilla::css::CommonAnimationManager
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{
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public:
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nsTransitionManager(nsPresContext *aPresContext)
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: mozilla::css::CommonAnimationManager(aPresContext)
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{
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}
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/**
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* StyleContextChanged
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*
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* To be called from nsFrameManager::ReResolveStyleContext when the
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* style of an element has changed, to initiate transitions from
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* that style change. For style contexts with :before and :after
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* pseudos, aElement is expected to be the generated before/after
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* element.
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*
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* It may return a "cover rule" (see CoverTransitionStartStyleRule) to
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* cover up some of the changes for the duration of the restyling of
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* descendants. If it does, this function will take care of causing
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* the necessary restyle afterwards, but the caller must restyle the
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* element *again* with the original sequence of rules plus the
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* returned cover rule as the most specific rule.
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*/
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already_AddRefed<nsIStyleRule>
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StyleContextChanged(mozilla::dom::Element *aElement,
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nsStyleContext *aOldStyleContext,
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nsStyleContext *aNewStyleContext);
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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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private:
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void ConsiderStartingTransition(nsCSSProperty aProperty,
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const nsTransition& aTransition,
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mozilla::dom::Element *aElement,
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ElementTransitions *&aElementTransitions,
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nsStyleContext *aOldStyleContext,
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nsStyleContext *aNewStyleContext,
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bool *aStartedAny,
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nsCSSPropertySet *aWhichStarted);
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ElementTransitions* GetElementTransitions(mozilla::dom::Element *aElement,
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nsCSSPseudoElements::Type aPseudoType,
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bool aCreateIfNeeded);
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void WalkTransitionRule(RuleProcessorData* aData,
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nsCSSPseudoElements::Type aPseudoType);
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};
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#endif /* !defined(nsTransitionManager_h_) */
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