зеркало из https://github.com/mozilla/gecko-dev.git
506 строки
15 KiB
C++
506 строки
15 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 "SVGAnimatedOrient.h"
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#include <utility>
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#include "DOMSVGAngle.h"
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#include "DOMSVGAnimatedAngle.h"
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#include "SVGAttrTearoffTable.h"
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#include "SVGOrientSMILType.h"
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#include "mozilla/ArrayUtils.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/SMILValue.h"
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#include "mozilla/dom/SVGMarkerElement.h"
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#include "mozAutoDocUpdate.h"
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#include "nsContentUtils.h"
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#include "nsTextFormatter.h"
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#include "nsPrintfCString.h"
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using namespace mozilla::dom;
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using namespace mozilla::dom::SVGAngle_Binding;
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using namespace mozilla::dom::SVGMarkerElement_Binding;
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namespace mozilla {
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static const nsStaticAtom* const angleUnitMap[] = {
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nullptr, /* SVG_ANGLETYPE_UNKNOWN */
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nullptr, /* SVG_ANGLETYPE_UNSPECIFIED */
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nsGkAtoms::deg, nsGkAtoms::rad, nsGkAtoms::grad};
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static SVGAttrTearoffTable<SVGAnimatedOrient, DOMSVGAnimatedEnumeration>
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sSVGAnimatedEnumTearoffTable;
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static SVGAttrTearoffTable<SVGAnimatedOrient, DOMSVGAnimatedAngle>
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sSVGAnimatedAngleTearoffTable;
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static SVGAttrTearoffTable<SVGAnimatedOrient, DOMSVGAngle>
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sBaseSVGAngleTearoffTable;
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static SVGAttrTearoffTable<SVGAnimatedOrient, DOMSVGAngle>
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sAnimSVGAngleTearoffTable;
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/* Helper functions */
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//----------------------------------------------------------------------
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// Helper class: AutoChangeOrientNotifier
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// Stack-based helper class to pair calls to WillChangeOrient and
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// DidChangeOrient with mozAutoDocUpdate.
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class MOZ_RAII AutoChangeOrientNotifier {
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public:
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AutoChangeOrientNotifier(SVGAnimatedOrient* aOrient, SVGElement* aSVGElement,
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bool aDoSetAttr = true)
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: mOrient(aOrient), mSVGElement(aSVGElement), mDoSetAttr(aDoSetAttr) {
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MOZ_ASSERT(mOrient, "Expecting non-null orient");
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if (mSVGElement && mDoSetAttr) {
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mUpdateBatch.emplace(mSVGElement->GetComposedDoc(), true);
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mEmptyOrOldValue = mSVGElement->WillChangeOrient(mUpdateBatch.ref());
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}
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}
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~AutoChangeOrientNotifier() {
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if (mSVGElement) {
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if (mDoSetAttr) {
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mSVGElement->DidChangeOrient(mEmptyOrOldValue, mUpdateBatch.ref());
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}
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if (mOrient->mIsAnimated) {
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mSVGElement->AnimationNeedsResample();
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}
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}
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}
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private:
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Maybe<mozAutoDocUpdate> mUpdateBatch;
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SVGAnimatedOrient* const mOrient;
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SVGElement* const mSVGElement;
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nsAttrValue mEmptyOrOldValue;
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bool mDoSetAttr;
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};
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static bool IsValidAngleUnitType(uint16_t unit) {
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return unit > SVG_ANGLETYPE_UNKNOWN && unit <= SVG_ANGLETYPE_GRAD;
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}
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static void GetAngleUnitString(nsAString& unit, uint16_t unitType) {
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if (IsValidAngleUnitType(unitType)) {
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if (angleUnitMap[unitType]) {
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angleUnitMap[unitType]->ToString(unit);
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}
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return;
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}
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MOZ_ASSERT_UNREACHABLE("Unknown unit type");
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}
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static uint16_t GetAngleUnitTypeForString(const nsAString& unitStr) {
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if (unitStr.IsEmpty()) return SVG_ANGLETYPE_UNSPECIFIED;
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nsStaticAtom* unitAtom = NS_GetStaticAtom(unitStr);
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if (unitAtom) {
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for (uint32_t i = 0; i < ArrayLength(angleUnitMap); i++) {
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if (angleUnitMap[i] == unitAtom) {
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return i;
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}
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}
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}
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return SVG_ANGLETYPE_UNKNOWN;
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}
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static void GetAngleValueString(nsAString& aValueAsString, float aValue,
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uint16_t aUnitType) {
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nsTextFormatter::ssprintf(aValueAsString, u"%g", (double)aValue);
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nsAutoString unitString;
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GetAngleUnitString(unitString, aUnitType);
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aValueAsString.Append(unitString);
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}
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/* static */
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bool SVGAnimatedOrient::GetValueFromString(const nsAString& aString,
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float& aValue, uint16_t* aUnitType) {
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bool success;
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auto token = SVGContentUtils::GetAndEnsureOneToken(aString, success);
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if (!success) {
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return false;
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}
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RangedPtr<const char16_t> iter = SVGContentUtils::GetStartRangedPtr(token);
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const RangedPtr<const char16_t> end = SVGContentUtils::GetEndRangedPtr(token);
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if (!SVGContentUtils::ParseNumber(iter, end, aValue)) {
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return false;
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}
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const nsAString& units = Substring(iter.get(), end.get());
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*aUnitType = GetAngleUnitTypeForString(units);
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return IsValidAngleUnitType(*aUnitType);
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}
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/* static */
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float SVGAnimatedOrient::GetDegreesPerUnit(uint8_t aUnit) {
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switch (aUnit) {
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case SVG_ANGLETYPE_UNSPECIFIED:
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case SVG_ANGLETYPE_DEG:
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return 1;
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case SVG_ANGLETYPE_RAD:
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return static_cast<float>(180.0 / M_PI);
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case SVG_ANGLETYPE_GRAD:
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return 90.0f / 100.0f;
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default:
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MOZ_ASSERT_UNREACHABLE("Unknown unit type");
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return 0;
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}
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}
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void SVGAnimatedOrient::SetBaseValueInSpecifiedUnits(float aValue,
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SVGElement* aSVGElement) {
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if (mBaseVal == aValue && mBaseType == SVG_MARKER_ORIENT_ANGLE) {
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return;
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}
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AutoChangeOrientNotifier notifier(this, aSVGElement);
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mBaseVal = aValue;
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mBaseType = SVG_MARKER_ORIENT_ANGLE;
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if (!mIsAnimated) {
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mAnimVal = mBaseVal;
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mAnimType = mBaseType;
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}
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}
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nsresult SVGAnimatedOrient::ConvertToSpecifiedUnits(uint16_t unitType,
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SVGElement* aSVGElement) {
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if (!IsValidAngleUnitType(unitType)) return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
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if (mBaseValUnit == uint8_t(unitType) &&
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mBaseType == SVG_MARKER_ORIENT_ANGLE) {
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return NS_OK;
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}
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float valueInUserUnits = mBaseVal * GetDegreesPerUnit(mBaseValUnit);
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SetBaseValue(valueInUserUnits, unitType, aSVGElement, true);
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return NS_OK;
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}
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nsresult SVGAnimatedOrient::NewValueSpecifiedUnits(uint16_t aUnitType,
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float aValueInSpecifiedUnits,
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SVGElement* aSVGElement) {
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NS_ENSURE_FINITE(aValueInSpecifiedUnits, NS_ERROR_ILLEGAL_VALUE);
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if (!IsValidAngleUnitType(aUnitType)) return NS_ERROR_DOM_NOT_SUPPORTED_ERR;
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if (mBaseVal == aValueInSpecifiedUnits &&
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mBaseValUnit == uint8_t(aUnitType) &&
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mBaseType == SVG_MARKER_ORIENT_ANGLE)
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return NS_OK;
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AutoChangeOrientNotifier notifier(this, aSVGElement);
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mBaseVal = aValueInSpecifiedUnits;
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mBaseValUnit = uint8_t(aUnitType);
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mBaseType = SVG_MARKER_ORIENT_ANGLE;
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if (!mIsAnimated) {
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mAnimVal = mBaseVal;
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mAnimValUnit = mBaseValUnit;
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mAnimType = mBaseType;
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}
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return NS_OK;
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}
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already_AddRefed<DOMSVGAngle> SVGAnimatedOrient::ToDOMBaseVal(
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SVGElement* aSVGElement) {
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RefPtr<DOMSVGAngle> domBaseVal = sBaseSVGAngleTearoffTable.GetTearoff(this);
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if (!domBaseVal) {
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domBaseVal =
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new DOMSVGAngle(this, aSVGElement, DOMSVGAngle::AngleType::BaseValue);
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sBaseSVGAngleTearoffTable.AddTearoff(this, domBaseVal);
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}
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return domBaseVal.forget();
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}
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already_AddRefed<DOMSVGAngle> SVGAnimatedOrient::ToDOMAnimVal(
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SVGElement* aSVGElement) {
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RefPtr<DOMSVGAngle> domAnimVal = sAnimSVGAngleTearoffTable.GetTearoff(this);
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if (!domAnimVal) {
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domAnimVal =
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new DOMSVGAngle(this, aSVGElement, DOMSVGAngle::AngleType::AnimValue);
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sAnimSVGAngleTearoffTable.AddTearoff(this, domAnimVal);
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}
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return domAnimVal.forget();
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}
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DOMSVGAngle::~DOMSVGAngle() {
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switch (mType) {
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case AngleType::BaseValue:
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sBaseSVGAngleTearoffTable.RemoveTearoff(mVal);
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break;
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case AngleType::AnimValue:
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sAnimSVGAngleTearoffTable.RemoveTearoff(mVal);
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break;
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default:
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delete mVal;
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}
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}
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/* Implementation */
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nsresult SVGAnimatedOrient::SetBaseValueString(const nsAString& aValueAsString,
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SVGElement* aSVGElement,
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bool aDoSetAttr) {
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uint8_t type;
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float value;
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uint16_t unitType;
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bool valueChanged = false;
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if (aValueAsString.EqualsLiteral("auto")) {
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type = SVG_MARKER_ORIENT_AUTO;
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if (type == mBaseType) {
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return NS_OK;
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}
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} else if (aValueAsString.EqualsLiteral("auto-start-reverse")) {
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type = SVG_MARKER_ORIENT_AUTO_START_REVERSE;
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if (type == mBaseType) {
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return NS_OK;
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}
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} else {
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if (!GetValueFromString(aValueAsString, value, &unitType)) {
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return NS_ERROR_DOM_SYNTAX_ERR;
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}
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if (mBaseVal == value && mBaseValUnit == uint8_t(unitType) &&
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mBaseType == SVG_MARKER_ORIENT_ANGLE) {
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return NS_OK;
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}
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valueChanged = true;
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}
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AutoChangeOrientNotifier notifier(this, aSVGElement, aDoSetAttr);
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if (valueChanged) {
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mBaseVal = value;
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mBaseValUnit = uint8_t(unitType);
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mBaseType = SVG_MARKER_ORIENT_ANGLE;
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} else {
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mBaseVal = .0f;
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mBaseValUnit = SVG_ANGLETYPE_UNSPECIFIED;
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mBaseType = type;
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}
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if (!mIsAnimated) {
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mAnimVal = mBaseVal;
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mAnimValUnit = mBaseValUnit;
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mAnimType = mBaseType;
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}
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return NS_OK;
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}
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void SVGAnimatedOrient::GetBaseValueString(nsAString& aValueAsString) const {
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switch (mBaseType) {
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case SVG_MARKER_ORIENT_AUTO:
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aValueAsString.AssignLiteral("auto");
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return;
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case SVG_MARKER_ORIENT_AUTO_START_REVERSE:
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aValueAsString.AssignLiteral("auto-start-reverse");
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return;
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}
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GetAngleValueString(aValueAsString, mBaseVal, mBaseValUnit);
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}
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void SVGAnimatedOrient::GetBaseAngleValueString(
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nsAString& aValueAsString) const {
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GetAngleValueString(aValueAsString, mBaseVal, mBaseValUnit);
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}
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void SVGAnimatedOrient::GetAnimAngleValueString(
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nsAString& aValueAsString) const {
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GetAngleValueString(aValueAsString, mAnimVal, mAnimValUnit);
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}
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void SVGAnimatedOrient::SetBaseValue(float aValue, uint8_t aUnit,
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SVGElement* aSVGElement, bool aDoSetAttr) {
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float valueInSpecifiedUnits = aValue / GetDegreesPerUnit(aUnit);
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if (aUnit == mBaseValUnit && mBaseVal == valueInSpecifiedUnits &&
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mBaseType == SVG_MARKER_ORIENT_ANGLE) {
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return;
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}
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AutoChangeOrientNotifier notifier(this, aSVGElement, aDoSetAttr);
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mBaseValUnit = aUnit;
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mBaseVal = valueInSpecifiedUnits;
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mBaseType = SVG_MARKER_ORIENT_ANGLE;
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if (!mIsAnimated) {
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mAnimValUnit = mBaseValUnit;
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mAnimVal = mBaseVal;
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mAnimType = mBaseType;
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}
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}
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void SVGAnimatedOrient::SetBaseType(SVGEnumValue aValue,
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SVGElement* aSVGElement, ErrorResult& aRv) {
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if (mBaseType == aValue) {
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return;
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}
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if (aValue == SVG_MARKER_ORIENT_AUTO || aValue == SVG_MARKER_ORIENT_ANGLE) {
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AutoChangeOrientNotifier notifier(this, aSVGElement);
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mBaseVal = .0f;
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mBaseValUnit = SVG_ANGLETYPE_UNSPECIFIED;
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mBaseType = aValue;
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if (!mIsAnimated) {
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mAnimVal = mBaseVal;
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mAnimValUnit = mBaseValUnit;
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mAnimType = mBaseType;
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}
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return;
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}
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nsPrintfCString err("Invalid base value %u for marker orient", aValue);
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aRv.ThrowTypeError(err);
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}
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void SVGAnimatedOrient::SetAnimValue(float aValue, uint8_t aUnit,
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SVGElement* aSVGElement) {
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if (mIsAnimated && mAnimVal == aValue && mAnimValUnit == aUnit &&
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mAnimType == SVG_MARKER_ORIENT_ANGLE) {
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return;
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}
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mAnimVal = aValue;
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mAnimValUnit = aUnit;
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mAnimType = SVG_MARKER_ORIENT_ANGLE;
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mIsAnimated = true;
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aSVGElement->DidAnimateOrient();
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}
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void SVGAnimatedOrient::SetAnimType(SVGEnumValue aValue,
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SVGElement* aSVGElement) {
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if (mIsAnimated && mAnimType == aValue) {
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return;
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}
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mAnimVal = .0f;
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mAnimValUnit = SVG_ANGLETYPE_UNSPECIFIED;
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mAnimType = aValue;
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mIsAnimated = true;
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aSVGElement->DidAnimateOrient();
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}
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already_AddRefed<DOMSVGAnimatedAngle> SVGAnimatedOrient::ToDOMAnimatedAngle(
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SVGElement* aSVGElement) {
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RefPtr<DOMSVGAnimatedAngle> domAnimatedAngle =
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sSVGAnimatedAngleTearoffTable.GetTearoff(this);
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if (!domAnimatedAngle) {
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domAnimatedAngle = new DOMSVGAnimatedAngle(this, aSVGElement);
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sSVGAnimatedAngleTearoffTable.AddTearoff(this, domAnimatedAngle);
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}
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return domAnimatedAngle.forget();
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}
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already_AddRefed<DOMSVGAnimatedEnumeration>
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SVGAnimatedOrient::ToDOMAnimatedEnum(SVGElement* aSVGElement) {
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RefPtr<DOMSVGAnimatedEnumeration> domAnimatedEnum =
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sSVGAnimatedEnumTearoffTable.GetTearoff(this);
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if (!domAnimatedEnum) {
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domAnimatedEnum = new DOMAnimatedEnum(this, aSVGElement);
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sSVGAnimatedEnumTearoffTable.AddTearoff(this, domAnimatedEnum);
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}
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return domAnimatedEnum.forget();
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}
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DOMSVGAnimatedAngle::~DOMSVGAnimatedAngle() {
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sSVGAnimatedAngleTearoffTable.RemoveTearoff(mVal);
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}
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SVGAnimatedOrient::DOMAnimatedEnum::~DOMAnimatedEnum() {
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sSVGAnimatedEnumTearoffTable.RemoveTearoff(mVal);
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}
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// we want to avoid exposing SVG_MARKER_ORIENT_AUTO_START_REVERSE to
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// Web content
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uint16_t SVGAnimatedOrient::DOMAnimatedEnum::Sanitize(uint16_t aValue) {
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return aValue == dom::SVG_MARKER_ORIENT_AUTO_START_REVERSE
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? dom::SVGMarkerElement_Binding::SVG_MARKER_ORIENT_UNKNOWN
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: aValue;
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}
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UniquePtr<SMILAttr> SVGAnimatedOrient::ToSMILAttr(SVGElement* aSVGElement) {
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if (aSVGElement->NodeInfo()->Equals(nsGkAtoms::marker, kNameSpaceID_SVG)) {
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return MakeUnique<SMILOrient>(this, aSVGElement);
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}
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// SMILOrient would not be useful for general angle attributes (also,
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// "orient" is the only animatable <angle>-valued attribute in SVG 1.1).
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MOZ_ASSERT_UNREACHABLE("Trying to animate unknown angle attribute.");
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return nullptr;
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}
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nsresult SVGAnimatedOrient::SMILOrient::ValueFromString(
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const nsAString& aStr, const SVGAnimationElement* /*aSrcElement*/,
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SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
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SMILValue val(&SVGOrientSMILType::sSingleton);
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if (aStr.EqualsLiteral("auto")) {
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val.mU.mOrient.mOrientType = SVG_MARKER_ORIENT_AUTO;
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val.mU.mOrient.mAngle = .0f;
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val.mU.mOrient.mUnit = SVG_ANGLETYPE_UNSPECIFIED;
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} else if (aStr.EqualsLiteral("auto-start-reverse")) {
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val.mU.mOrient.mOrientType = SVG_MARKER_ORIENT_AUTO_START_REVERSE;
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val.mU.mOrient.mAngle = .0f;
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val.mU.mOrient.mUnit = SVG_ANGLETYPE_UNSPECIFIED;
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} else {
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float value;
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uint16_t unitType;
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if (!GetValueFromString(aStr, value, &unitType)) {
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return NS_ERROR_DOM_SYNTAX_ERR;
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}
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val.mU.mOrient.mAngle = value;
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val.mU.mOrient.mUnit = unitType;
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val.mU.mOrient.mOrientType = SVG_MARKER_ORIENT_ANGLE;
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}
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aValue = std::move(val);
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aPreventCachingOfSandwich = false;
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return NS_OK;
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}
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SMILValue SVGAnimatedOrient::SMILOrient::GetBaseValue() const {
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SMILValue val(&SVGOrientSMILType::sSingleton);
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val.mU.mOrient.mAngle = mOrient->GetBaseValInSpecifiedUnits();
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|
val.mU.mOrient.mUnit = mOrient->GetBaseValueUnit();
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|
val.mU.mOrient.mOrientType = mOrient->mBaseType;
|
|
return val;
|
|
}
|
|
|
|
void SVGAnimatedOrient::SMILOrient::ClearAnimValue() {
|
|
if (mOrient->mIsAnimated) {
|
|
mOrient->mIsAnimated = false;
|
|
mOrient->mAnimVal = mOrient->mBaseVal;
|
|
mOrient->mAnimValUnit = mOrient->mBaseValUnit;
|
|
mOrient->mAnimType = mOrient->mBaseType;
|
|
mSVGElement->DidAnimateOrient();
|
|
}
|
|
}
|
|
|
|
nsresult SVGAnimatedOrient::SMILOrient::SetAnimValue(const SMILValue& aValue) {
|
|
NS_ASSERTION(aValue.mType == &SVGOrientSMILType::sSingleton,
|
|
"Unexpected type to assign animated value");
|
|
|
|
if (aValue.mType == &SVGOrientSMILType::sSingleton) {
|
|
if (aValue.mU.mOrient.mOrientType == SVG_MARKER_ORIENT_AUTO ||
|
|
aValue.mU.mOrient.mOrientType == SVG_MARKER_ORIENT_AUTO_START_REVERSE) {
|
|
mOrient->SetAnimType(aValue.mU.mOrient.mOrientType, mSVGElement);
|
|
} else {
|
|
mOrient->SetAnimValue(aValue.mU.mOrient.mAngle, aValue.mU.mOrient.mUnit,
|
|
mSVGElement);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace mozilla
|