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convert MOZ_OVERRIDE override
convert MOZ_FINAL final
128 lines
4.1 KiB
C++
128 lines
4.1 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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#ifndef MOZILLA_SVGANIMATEDLENGTHLIST_H__
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#define MOZILLA_SVGANIMATEDLENGTHLIST_H__
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#include "mozilla/Attributes.h"
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#include "nsAutoPtr.h"
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#include "nsISMILAttr.h"
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#include "SVGLengthList.h"
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class nsSMILValue;
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class nsSVGElement;
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namespace mozilla {
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namespace dom {
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class SVGAnimationElement;
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}
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/**
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* Class SVGAnimatedLengthList
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*
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* This class is very different to the SVG DOM interface of the same name found
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* in the SVG specification. This is a lightweight internal class - see
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* DOMSVGAnimatedLengthList for the heavier DOM class that wraps instances of
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* this class and implements the SVG specification's SVGAnimatedLengthList DOM
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* interface.
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*
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* Except where noted otherwise, this class' methods take care of keeping the
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* appropriate DOM wrappers in sync (see the comment in
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* DOMSVGAnimatedLengthList::InternalBaseValListWillChangeTo) so that their
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* consumers don't need to concern themselves with that.
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*/
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class SVGAnimatedLengthList
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{
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// friends so that they can get write access to mBaseVal
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friend class DOMSVGLength;
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friend class DOMSVGLengthList;
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public:
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SVGAnimatedLengthList() {}
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/**
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* Because it's so important that mBaseVal and its DOMSVGLengthList wrapper
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* (if any) be kept in sync (see the comment in
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* DOMSVGAnimatedLengthList::InternalBaseValListWillChangeTo), this method
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* returns a const reference. Only our friend classes may get mutable
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* references to mBaseVal.
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*/
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const SVGLengthList& GetBaseValue() const {
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return mBaseVal;
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}
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nsresult SetBaseValueString(const nsAString& aValue);
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void ClearBaseValue(uint32_t aAttrEnum);
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const SVGLengthList& GetAnimValue() const {
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return mAnimVal ? *mAnimVal : mBaseVal;
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}
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nsresult SetAnimValue(const SVGLengthList& aValue,
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nsSVGElement *aElement,
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uint32_t aAttrEnum);
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void ClearAnimValue(nsSVGElement *aElement,
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uint32_t aAttrEnum);
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bool IsAnimating() const {
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return !!mAnimVal;
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}
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/// Callers own the returned nsISMILAttr
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nsISMILAttr* ToSMILAttr(nsSVGElement* aSVGElement, uint8_t aAttrEnum,
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uint8_t aAxis, bool aCanZeroPadList);
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private:
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// mAnimVal is a pointer to allow us to determine if we're being animated or
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// not. Making it a non-pointer member and using mAnimVal.IsEmpty() to check
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// if we're animating is not an option, since that would break animation *to*
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// the empty string (<set to="">).
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SVGLengthList mBaseVal;
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nsAutoPtr<SVGLengthList> mAnimVal;
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struct SMILAnimatedLengthList : public nsISMILAttr
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{
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public:
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SMILAnimatedLengthList(SVGAnimatedLengthList* aVal,
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nsSVGElement* aSVGElement,
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uint8_t aAttrEnum,
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uint8_t aAxis,
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bool aCanZeroPadList)
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: mVal(aVal)
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, mElement(aSVGElement)
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, mAttrEnum(aAttrEnum)
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, mAxis(aAxis)
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, mCanZeroPadList(aCanZeroPadList)
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{}
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// These will stay alive because a nsISMILAttr only lives as long
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// as the Compositing step, and DOM elements don't get a chance to
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// die during that.
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SVGAnimatedLengthList* mVal;
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nsSVGElement* mElement;
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uint8_t mAttrEnum;
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uint8_t mAxis;
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bool mCanZeroPadList; // See SVGLengthListAndInfo::CanZeroPadList
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// nsISMILAttr methods
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virtual nsresult ValueFromString(const nsAString& aStr,
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const dom::SVGAnimationElement* aSrcElement,
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nsSMILValue& aValue,
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bool& aPreventCachingOfSandwich) const override;
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virtual nsSMILValue GetBaseValue() const override;
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virtual void ClearAnimValue() override;
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virtual nsresult SetAnimValue(const nsSMILValue& aValue) override;
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};
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};
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} // namespace mozilla
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#endif // MOZILLA_SVGANIMATEDLENGTHLIST_H__
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