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109 lines
4.5 KiB
C++
109 lines
4.5 KiB
C++
/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is nsTransitionManager.
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*
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* The Initial Developer of the Original Code is the Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2009
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* L. David Baron <dbaron@dbaron.org>, Mozilla Corporation (original author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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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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// 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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