gecko-dev/dom/svg/SVGAnimatedString.cpp
longsonr 0433fcdc52 Bug 1655324 - rewrite DOMSVGAnimatedString r=heycam
- Convert DOMSVGAnimatedString to a concrete class rather than having two almost identical derived classes that differ only by the class of the mVal pointer
- Introduce tear off support for SVGAnimatedClass
- Move to native refcounting rather than nsISupports

Differential Revision: https://phabricator.services.mozilla.com/D84924
2020-08-10 07:55:15 +00:00

99 lines
2.9 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "SVGAnimatedString.h"
#include <utility>
#include "SMILStringType.h"
#include "SVGAttrTearoffTable.h"
#include "mozilla/SMILValue.h"
using namespace mozilla::dom;
namespace mozilla {
/* Implementation */
void SVGAnimatedString::SetBaseValue(const nsAString& aValue,
SVGElement* aSVGElement, bool aDoSetAttr) {
NS_ASSERTION(aSVGElement, "Null element passed to SetBaseValue");
mIsBaseSet = true;
if (aDoSetAttr) {
aSVGElement->SetStringBaseValue(mAttrEnum, aValue);
}
if (mAnimVal) {
aSVGElement->AnimationNeedsResample();
}
aSVGElement->DidChangeString(mAttrEnum);
}
void SVGAnimatedString::GetAnimValue(nsAString& aResult,
const SVGElement* aSVGElement) const {
if (mAnimVal) {
aResult = *mAnimVal;
return;
}
aSVGElement->GetStringBaseValue(mAttrEnum, aResult);
}
void SVGAnimatedString::SetAnimValue(const nsAString& aValue,
SVGElement* aSVGElement) {
if (aSVGElement->IsStringAnimatable(mAttrEnum)) {
if (mAnimVal && mAnimVal->Equals(aValue)) {
return;
}
if (!mAnimVal) {
mAnimVal = MakeUnique<nsString>();
}
*mAnimVal = aValue;
aSVGElement->DidAnimateString(mAttrEnum);
}
}
UniquePtr<SMILAttr> SVGAnimatedString::ToSMILAttr(SVGElement* aSVGElement) {
return MakeUnique<SMILString>(this, aSVGElement);
}
nsresult SVGAnimatedString::SMILString::ValueFromString(
const nsAString& aStr, const dom::SVGAnimationElement* /*aSrcElement*/,
SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
SMILValue val(SMILStringType::Singleton());
*static_cast<nsAString*>(val.mU.mPtr) = aStr;
aValue = std::move(val);
aPreventCachingOfSandwich = false;
return NS_OK;
}
SMILValue SVGAnimatedString::SMILString::GetBaseValue() const {
SMILValue val(SMILStringType::Singleton());
mSVGElement->GetStringBaseValue(mVal->mAttrEnum,
*static_cast<nsAString*>(val.mU.mPtr));
return val;
}
void SVGAnimatedString::SMILString::ClearAnimValue() {
if (mVal->mAnimVal) {
mVal->mAnimVal = nullptr;
mSVGElement->DidAnimateString(mVal->mAttrEnum);
}
}
nsresult SVGAnimatedString::SMILString::SetAnimValue(const SMILValue& aValue) {
NS_ASSERTION(aValue.mType == SMILStringType::Singleton(),
"Unexpected type to assign animated value");
if (aValue.mType == SMILStringType::Singleton()) {
mVal->SetAnimValue(*static_cast<nsAString*>(aValue.mU.mPtr), mSVGElement);
}
return NS_OK;
}
} // namespace mozilla