mirror of
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161 lines
4.3 KiB
C++
161 lines
4.3 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 mozilla_css_AnimationCommon_h
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#define mozilla_css_AnimationCommon_h
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#include "nsIStyleRuleProcessor.h"
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#include "nsIStyleRule.h"
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#include "nsRefreshDriver.h"
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#include "prclist.h"
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#include "nsStyleAnimation.h"
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#include "nsCSSProperty.h"
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#include "mozilla/dom/Element.h"
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#include "nsSMILKeySpline.h"
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#include "nsStyleStruct.h"
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class nsPresContext;
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namespace mozilla {
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namespace css {
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struct CommonElementAnimationData;
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class CommonAnimationManager : public nsIStyleRuleProcessor,
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public nsARefreshObserver {
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public:
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CommonAnimationManager(nsPresContext *aPresContext);
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virtual ~CommonAnimationManager();
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// nsISupports
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NS_DECL_ISUPPORTS
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// nsIStyleRuleProcessor (parts)
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virtual nsRestyleHint HasStateDependentStyle(StateRuleProcessorData* aData);
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virtual bool HasDocumentStateDependentStyle(StateRuleProcessorData* aData);
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virtual nsRestyleHint
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HasAttributeDependentStyle(AttributeRuleProcessorData* aData);
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virtual bool MediumFeaturesChanged(nsPresContext* aPresContext);
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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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/**
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* Notify the manager that the pres context is going away.
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*/
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void Disconnect();
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static bool ExtractComputedValueForTransition(
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nsCSSProperty aProperty,
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nsStyleContext* aStyleContext,
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nsStyleAnimation::Value& aComputedValue);
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protected:
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friend struct CommonElementAnimationData; // for ElementDataRemoved
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void AddElementData(CommonElementAnimationData* aData);
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void ElementDataRemoved();
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void RemoveAllElementData();
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PRCList mElementData;
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nsPresContext *mPresContext; // weak (non-null from ctor to Disconnect)
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};
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/**
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* A style rule that maps property-nsStyleAnimation::Value pairs.
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*/
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class AnimValuesStyleRule : public nsIStyleRule
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{
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public:
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// nsISupports implementation
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NS_DECL_ISUPPORTS
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// nsIStyleRule implementation
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virtual void MapRuleInfoInto(nsRuleData* aRuleData);
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#ifdef DEBUG
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virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
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#endif
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void AddValue(nsCSSProperty aProperty, nsStyleAnimation::Value &aStartValue)
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{
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PropertyValuePair v = { aProperty, aStartValue };
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mPropertyValuePairs.AppendElement(v);
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}
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// Caller must fill in returned value.
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nsStyleAnimation::Value* AddEmptyValue(nsCSSProperty aProperty)
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{
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PropertyValuePair *p = mPropertyValuePairs.AppendElement();
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p->mProperty = aProperty;
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return &p->mValue;
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}
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struct PropertyValuePair {
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nsCSSProperty mProperty;
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nsStyleAnimation::Value mValue;
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};
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private:
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InfallibleTArray<PropertyValuePair> mPropertyValuePairs;
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};
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class ComputedTimingFunction {
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public:
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typedef nsTimingFunction::Type Type;
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void Init(const nsTimingFunction &aFunction);
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double GetValue(double aPortion) const;
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private:
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Type mType;
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nsSMILKeySpline mTimingFunction;
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PRUint32 mSteps;
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};
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struct CommonElementAnimationData : public PRCList
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{
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CommonElementAnimationData(dom::Element *aElement, nsIAtom *aElementProperty,
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CommonAnimationManager *aManager)
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: mElement(aElement)
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, mElementProperty(aElementProperty)
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, mManager(aManager)
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#ifdef DEBUG
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, mCalledPropertyDtor(false)
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#endif
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{
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MOZ_COUNT_CTOR(CommonElementAnimationData);
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PR_INIT_CLIST(this);
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}
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~CommonElementAnimationData()
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{
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NS_ABORT_IF_FALSE(mCalledPropertyDtor,
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"must call destructor through element property dtor");
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MOZ_COUNT_DTOR(CommonElementAnimationData);
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PR_REMOVE_LINK(this);
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mManager->ElementDataRemoved();
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}
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void Destroy()
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{
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// This will call our destructor.
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mElement->DeleteProperty(mElementProperty);
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}
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dom::Element *mElement;
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// the atom we use in mElement's prop table (must be a static atom,
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// i.e., in an atom list)
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nsIAtom *mElementProperty;
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CommonAnimationManager *mManager;
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#ifdef DEBUG
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bool mCalledPropertyDtor;
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#endif
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};
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}
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}
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#endif /* !defined(mozilla_css_AnimationCommon_h) */
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