mirror of
https://github.com/classilla/tenfourfox.git
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185 lines
4.6 KiB
C++
185 lines
4.6 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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#include "nsSVGNumber2.h"
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#include "mozilla/Attributes.h"
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#include "nsContentUtils.h" // NS_ENSURE_FINITE
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#include "nsSMILFloatType.h"
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#include "nsSMILValue.h"
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#include "nsSVGAttrTearoffTable.h"
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#include "SVGContentUtils.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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/* Implementation */
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static nsSVGAttrTearoffTable<nsSVGNumber2, nsSVGNumber2::DOMAnimatedNumber>
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sSVGAnimatedNumberTearoffTable;
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static bool
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GetValueFromString(const nsAString& aString,
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bool aPercentagesAllowed,
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float& aValue)
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{
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RangedPtr<const char16_t> iter =
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SVGContentUtils::GetStartRangedPtr(aString);
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const RangedPtr<const char16_t> end =
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SVGContentUtils::GetEndRangedPtr(aString);
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if (!SVGContentUtils::ParseNumber(iter, end, aValue)) {
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return false;
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}
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if (aPercentagesAllowed) {
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const nsAString& units = Substring(iter.get(), end.get());
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if (units.EqualsLiteral("%")) {
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aValue /= 100;
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return true;
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}
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}
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return iter == end;
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}
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nsresult
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nsSVGNumber2::SetBaseValueString(const nsAString &aValueAsString,
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nsSVGElement *aSVGElement)
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{
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float val;
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if (!GetValueFromString(aValueAsString,
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aSVGElement->NumberAttrAllowsPercentage(mAttrEnum),
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val)) {
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return NS_ERROR_DOM_SYNTAX_ERR;
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}
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mBaseVal = val;
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mIsBaseSet = true;
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if (!mIsAnimated) {
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mAnimVal = mBaseVal;
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}
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else {
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aSVGElement->AnimationNeedsResample();
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}
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// We don't need to call DidChange* here - we're only called by
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// nsSVGElement::ParseAttribute under Element::SetAttr,
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// which takes care of notifying.
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return NS_OK;
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}
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void
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nsSVGNumber2::GetBaseValueString(nsAString & aValueAsString)
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{
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aValueAsString.Truncate();
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aValueAsString.AppendFloat(mBaseVal);
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}
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void
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nsSVGNumber2::SetBaseValue(float aValue, nsSVGElement *aSVGElement)
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{
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if (mIsBaseSet && aValue == mBaseVal) {
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return;
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}
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mBaseVal = aValue;
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mIsBaseSet = true;
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if (!mIsAnimated) {
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mAnimVal = mBaseVal;
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}
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else {
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aSVGElement->AnimationNeedsResample();
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}
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aSVGElement->DidChangeNumber(mAttrEnum);
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}
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void
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nsSVGNumber2::SetAnimValue(float aValue, nsSVGElement *aSVGElement)
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{
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if (mIsAnimated && aValue == mAnimVal) {
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return;
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}
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mAnimVal = aValue;
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mIsAnimated = true;
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aSVGElement->DidAnimateNumber(mAttrEnum);
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}
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already_AddRefed<SVGAnimatedNumber>
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nsSVGNumber2::ToDOMAnimatedNumber(nsSVGElement* aSVGElement)
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{
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RefPtr<DOMAnimatedNumber> domAnimatedNumber =
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sSVGAnimatedNumberTearoffTable.GetTearoff(this);
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if (!domAnimatedNumber) {
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domAnimatedNumber = new DOMAnimatedNumber(this, aSVGElement);
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sSVGAnimatedNumberTearoffTable.AddTearoff(this, domAnimatedNumber);
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}
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return domAnimatedNumber.forget();
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}
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nsSVGNumber2::DOMAnimatedNumber::~DOMAnimatedNumber()
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{
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sSVGAnimatedNumberTearoffTable.RemoveTearoff(mVal);
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}
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nsISMILAttr*
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nsSVGNumber2::ToSMILAttr(nsSVGElement *aSVGElement)
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{
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return new SMILNumber(this, aSVGElement);
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}
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nsresult
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nsSVGNumber2::SMILNumber::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
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{
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float value;
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if (!GetValueFromString(aStr,
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mSVGElement->NumberAttrAllowsPercentage(mVal->mAttrEnum),
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value)) {
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return NS_ERROR_DOM_SYNTAX_ERR;
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}
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nsSMILValue val(nsSMILFloatType::Singleton());
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val.mU.mDouble = value;
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aValue = val;
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aPreventCachingOfSandwich = false;
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return NS_OK;
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}
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nsSMILValue
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nsSVGNumber2::SMILNumber::GetBaseValue() const
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{
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nsSMILValue val(nsSMILFloatType::Singleton());
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val.mU.mDouble = mVal->mBaseVal;
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return val;
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}
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void
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nsSVGNumber2::SMILNumber::ClearAnimValue()
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{
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if (mVal->mIsAnimated) {
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mVal->mIsAnimated = false;
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mVal->mAnimVal = mVal->mBaseVal;
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mSVGElement->DidAnimateNumber(mVal->mAttrEnum);
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}
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}
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nsresult
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nsSVGNumber2::SMILNumber::SetAnimValue(const nsSMILValue& aValue)
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{
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NS_ASSERTION(aValue.mType == nsSMILFloatType::Singleton(),
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"Unexpected type to assign animated value");
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if (aValue.mType == nsSMILFloatType::Singleton()) {
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mVal->SetAnimValue(float(aValue.mU.mDouble), mSVGElement);
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}
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return NS_OK;
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}
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