зеркало из https://github.com/mozilla/gecko-dev.git
137 строки
4.8 KiB
C++
137 строки
4.8 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 MOZILLA_SVGANIMATEDPRESERVEASPECTRATIO_H__
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#define MOZILLA_SVGANIMATEDPRESERVEASPECTRATIO_H__
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#include "nsCycleCollectionParticipant.h"
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#include "nsError.h"
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#include "SVGPreserveAspectRatio.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/SMILAttr.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/dom/SVGElement.h"
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namespace mozilla {
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class SMILValue;
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namespace dom {
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class DOMSVGAnimatedPreserveAspectRatio;
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class SVGAnimationElement;
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} // namespace dom
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class SVGAnimatedPreserveAspectRatio final {
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public:
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void Init() {
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mBaseVal.mAlign =
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dom::SVGPreserveAspectRatio_Binding::SVG_PRESERVEASPECTRATIO_XMIDYMID;
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mBaseVal.mMeetOrSlice =
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dom::SVGPreserveAspectRatio_Binding::SVG_MEETORSLICE_MEET;
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mAnimVal = mBaseVal;
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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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dom::SVGElement* aSVGElement, bool aDoSetAttr);
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void GetBaseValueString(nsAString& aValue) const;
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void SetBaseValue(const SVGPreserveAspectRatio& aValue,
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dom::SVGElement* aSVGElement);
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nsresult SetBaseAlign(uint16_t aAlign, dom::SVGElement* aSVGElement) {
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if (aAlign < SVG_ALIGN_MIN_VALID || aAlign > SVG_ALIGN_MAX_VALID) {
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return NS_ERROR_FAILURE;
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}
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SetBaseValue(SVGPreserveAspectRatio(static_cast<uint8_t>(aAlign),
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mBaseVal.GetMeetOrSlice()),
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aSVGElement);
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return NS_OK;
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}
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nsresult SetBaseMeetOrSlice(uint16_t aMeetOrSlice,
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dom::SVGElement* aSVGElement) {
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if (aMeetOrSlice < SVG_MEETORSLICE_MIN_VALID ||
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aMeetOrSlice > SVG_MEETORSLICE_MAX_VALID) {
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return NS_ERROR_FAILURE;
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}
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SetBaseValue(SVGPreserveAspectRatio(mBaseVal.GetAlign(),
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static_cast<uint8_t>(aMeetOrSlice)),
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aSVGElement);
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return NS_OK;
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}
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void SetAnimValue(uint64_t aPackedValue, dom::SVGElement* aSVGElement);
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const SVGPreserveAspectRatio& GetBaseValue() const { return mBaseVal; }
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const SVGPreserveAspectRatio& GetAnimValue() const { return mAnimVal; }
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bool IsAnimated() const { return mIsAnimated; }
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bool IsExplicitlySet() const { return mIsAnimated || mIsBaseSet; }
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already_AddRefed<mozilla::dom::DOMSVGAnimatedPreserveAspectRatio>
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ToDOMAnimatedPreserveAspectRatio(dom::SVGElement* aSVGElement);
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UniquePtr<SMILAttr> ToSMILAttr(dom::SVGElement* aSVGElement);
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private:
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SVGPreserveAspectRatio mAnimVal;
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SVGPreserveAspectRatio mBaseVal;
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bool mIsAnimated;
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bool mIsBaseSet;
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public:
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struct SMILPreserveAspectRatio final : public SMILAttr {
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public:
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SMILPreserveAspectRatio(SVGAnimatedPreserveAspectRatio* aVal,
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dom::SVGElement* aSVGElement)
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: mVal(aVal), mSVGElement(aSVGElement) {}
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// These will stay alive because a SMILAttr 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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SVGAnimatedPreserveAspectRatio* mVal;
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dom::SVGElement* mSVGElement;
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// SMILAttr methods
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virtual nsresult ValueFromString(
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const nsAString& aStr, const dom::SVGAnimationElement* aSrcElement,
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SMILValue& aValue, bool& aPreventCachingOfSandwich) const override;
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virtual SMILValue GetBaseValue() const override;
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virtual void ClearAnimValue() override;
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virtual nsresult SetAnimValue(const SMILValue& aValue) override;
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};
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};
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namespace dom {
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class DOMSVGAnimatedPreserveAspectRatio final : public nsISupports,
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public nsWrapperCache {
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~DOMSVGAnimatedPreserveAspectRatio();
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(
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DOMSVGAnimatedPreserveAspectRatio)
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DOMSVGAnimatedPreserveAspectRatio(SVGAnimatedPreserveAspectRatio* aVal,
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dom::SVGElement* aSVGElement)
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: mVal(aVal), mSVGElement(aSVGElement) {}
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// WebIDL
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dom::SVGElement* GetParentObject() const { return mSVGElement; }
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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// These aren't weak refs because new objects are returned each time
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already_AddRefed<DOMSVGPreserveAspectRatio> BaseVal();
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already_AddRefed<DOMSVGPreserveAspectRatio> AnimVal();
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protected:
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// kept alive because it belongs to content:
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SVGAnimatedPreserveAspectRatio* mVal;
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RefPtr<dom::SVGElement> mSVGElement;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // MOZILLA_SVGANIMATEDPRESERVEASPECTRATIO_H__
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