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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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146
dom/svg/nsSVGString.cpp Normal file
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/* -*- 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 "nsSVGString.h"
#include "mozilla/Move.h"
#include "nsSVGAttrTearoffTable.h"
#include "nsSMILValue.h"
#include "SMILStringType.h"
using namespace mozilla;
using namespace mozilla::dom;
NS_SVG_VAL_IMPL_CYCLE_COLLECTION_WRAPPERCACHED(nsSVGString::DOMAnimatedString, mSVGElement)
NS_IMPL_CYCLE_COLLECTING_ADDREF(nsSVGString::DOMAnimatedString)
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsSVGString::DOMAnimatedString)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsSVGString::DOMAnimatedString)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
static inline
nsSVGAttrTearoffTable<nsSVGString, nsSVGString::DOMAnimatedString>&
SVGAnimatedStringTearoffTable()
{
static nsSVGAttrTearoffTable<nsSVGString, nsSVGString::DOMAnimatedString>
sSVGAnimatedStringTearoffTable;
return sSVGAnimatedStringTearoffTable;
}
/* Implementation */
void
nsSVGString::SetBaseValue(const nsAString& aValue,
nsSVGElement *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
nsSVGString::GetAnimValue(nsAString& aResult, const nsSVGElement *aSVGElement) const
{
if (mAnimVal) {
aResult = *mAnimVal;
return;
}
aSVGElement->GetStringBaseValue(mAttrEnum, aResult);
}
void
nsSVGString::SetAnimValue(const nsAString& aValue, nsSVGElement *aSVGElement)
{
if (aSVGElement->IsStringAnimatable(mAttrEnum)) {
if (mAnimVal && mAnimVal->Equals(aValue)) {
return;
}
if (!mAnimVal) {
mAnimVal = new nsString();
}
*mAnimVal = aValue;
aSVGElement->DidAnimateString(mAttrEnum);
}
}
already_AddRefed<SVGAnimatedString>
nsSVGString::ToDOMAnimatedString(nsSVGElement* aSVGElement)
{
RefPtr<DOMAnimatedString> domAnimatedString =
SVGAnimatedStringTearoffTable().GetTearoff(this);
if (!domAnimatedString) {
domAnimatedString = new DOMAnimatedString(this, aSVGElement);
SVGAnimatedStringTearoffTable().AddTearoff(this, domAnimatedString);
}
return domAnimatedString.forget();
}
nsSVGString::DOMAnimatedString::~DOMAnimatedString()
{
SVGAnimatedStringTearoffTable().RemoveTearoff(mVal);
}
nsISMILAttr*
nsSVGString::ToSMILAttr(nsSVGElement *aSVGElement)
{
return new SMILString(this, aSVGElement);
}
nsresult
nsSVGString::SMILString::ValueFromString(const nsAString& aStr,
const dom::SVGAnimationElement* /*aSrcElement*/,
nsSMILValue& aValue,
bool& aPreventCachingOfSandwich) const
{
nsSMILValue val(SMILStringType::Singleton());
*static_cast<nsAString*>(val.mU.mPtr) = aStr;
aValue = Move(val);
aPreventCachingOfSandwich = false;
return NS_OK;
}
nsSMILValue
nsSVGString::SMILString::GetBaseValue() const
{
nsSMILValue val(SMILStringType::Singleton());
mSVGElement->GetStringBaseValue(mVal->mAttrEnum, *static_cast<nsAString*>(val.mU.mPtr));
return val;
}
void
nsSVGString::SMILString::ClearAnimValue()
{
if (mVal->mAnimVal) {
mVal->mAnimVal = nullptr;
mSVGElement->DidAnimateString(mVal->mAttrEnum);
}
}
nsresult
nsSVGString::SMILString::SetAnimValue(const nsSMILValue& 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;
}