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123 lines
3.7 KiB
C++
123 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 __NS_SVGINTEGER_H__
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#define __NS_SVGINTEGER_H__
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#include "nsAutoPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsError.h"
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#include "SVGAnimatedInteger.h"
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#include "nsISMILAttr.h"
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#include "nsSVGElement.h"
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#include "mozilla/Attributes.h"
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class nsSMILValue;
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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 nsSVGInteger
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{
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public:
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void Init(uint8_t aAttrEnum = 0xff, int32_t aValue = 0) {
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mAnimVal = mBaseVal = aValue;
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mAttrEnum = aAttrEnum;
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mIsAnimated = false;
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mIsBaseSet = false;
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}
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nsresult SetBaseValueString(const nsAString& aValue,
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nsSVGElement *aSVGElement);
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void GetBaseValueString(nsAString& aValue);
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void SetBaseValue(int32_t aValue, nsSVGElement *aSVGElement);
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int32_t GetBaseValue() const
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{ return mBaseVal; }
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void SetAnimValue(int aValue, nsSVGElement *aSVGElement);
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int GetAnimValue() const
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{ return mAnimVal; }
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// Returns true if the animated value of this integer has been explicitly
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// set (either by animation, or by taking on the base value which has been
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// explicitly set by markup or a DOM call), false otherwise.
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// If this returns false, the animated value is still valid, that is,
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// useable, and represents the default base value of the attribute.
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bool IsExplicitlySet() const
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{ return mIsAnimated || mIsBaseSet; }
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already_AddRefed<mozilla::dom::SVGAnimatedInteger>
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ToDOMAnimatedInteger(nsSVGElement* aSVGElement);
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// Returns a new nsISMILAttr object that the caller must delete
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nsISMILAttr* ToSMILAttr(nsSVGElement* aSVGElement);
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private:
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int32_t mAnimVal;
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int32_t mBaseVal;
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uint8_t mAttrEnum; // element specified tracking for attribute
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bool mIsAnimated;
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bool mIsBaseSet;
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public:
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struct DOMAnimatedInteger final : public mozilla::dom::SVGAnimatedInteger
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{
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DOMAnimatedInteger(nsSVGInteger* aVal, nsSVGElement* aSVGElement)
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: mozilla::dom::SVGAnimatedInteger(aSVGElement)
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, mVal(aVal)
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{}
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virtual ~DOMAnimatedInteger();
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nsSVGInteger* mVal; // kept alive because it belongs to content
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virtual int32_t BaseVal() override
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{
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return mVal->GetBaseValue();
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}
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virtual void SetBaseVal(int32_t aValue) override
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{
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mVal->SetBaseValue(aValue, mSVGElement);
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}
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// Script may have modified animation parameters or timeline -- DOM getters
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// need to flush any resample requests to reflect these modifications.
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virtual int32_t AnimVal() override
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{
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mSVGElement->FlushAnimations();
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return mVal->GetAnimValue();
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}
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};
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struct SMILInteger : public nsISMILAttr
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{
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public:
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SMILInteger(nsSVGInteger* aVal, nsSVGElement* aSVGElement)
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: mVal(aVal), mSVGElement(aSVGElement) {}
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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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nsSVGInteger* mVal;
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nsSVGElement* mSVGElement;
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// nsISMILAttr methods
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virtual nsresult ValueFromString(const nsAString& aStr,
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const mozilla::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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#endif //__NS_SVGINTEGER_H__
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