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68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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/* representation of a SMIL-animatable CSS property on an element */
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#ifndef NS_SMILCSSPROPERTY_H_
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#define NS_SMILCSSPROPERTY_H_
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#include "nsISMILAttr.h"
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#include "nsIAtom.h"
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#include "nsCSSProperty.h"
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#include "nsCSSValue.h"
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class nsIContent;
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namespace mozilla {
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namespace dom {
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class Element;
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} // namespace dom
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} // namespace mozilla
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/**
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* nsSMILCSSProperty: Implements the nsISMILAttr interface for SMIL animations
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* that target CSS properties. Represents a particular animation-targeted CSS
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* property on a particular element.
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*/
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class nsSMILCSSProperty : public nsISMILAttr
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{
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public:
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/**
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* Constructs a new nsSMILCSSProperty.
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* @param aPropID The CSS property we're interested in animating.
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* @param aElement The element whose CSS property is being animated.
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*/
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nsSMILCSSProperty(nsCSSProperty aPropID, mozilla::dom::Element* aElement);
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// nsISMILAttr methods
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virtual nsresult ValueFromString(const nsAString& aStr,
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const nsISMILAnimationElement* aSrcElement,
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nsSMILValue& aValue,
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bool& aPreventCachingOfSandwich) const;
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virtual nsSMILValue GetBaseValue() const;
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virtual nsresult SetAnimValue(const nsSMILValue& aValue);
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virtual void ClearAnimValue();
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/**
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* Utility method - returns true if the given property is supported for
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* SMIL animation.
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*
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* @param aProperty The property to check for animation support.
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* @return true if the given property is supported for SMIL animation, or
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* false otherwise
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*/
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static bool IsPropertyAnimatable(nsCSSProperty aPropID);
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protected:
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nsCSSProperty mPropID;
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// Using non-refcounted pointer for mElement -- we know mElement will stay
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// alive for my lifetime because a nsISMILAttr (like me) only lives as long
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// as the Compositing step, and DOM elements don't get a chance to die during
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// that time.
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mozilla::dom::Element* mElement;
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};
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#endif // NS_SMILCSSPROPERTY_H_
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