dom/svg/SVGAnimatedClass.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "SVGAnimatedClass.h"
   8
   9 #include <utility>
  10
  11 #include "DOMSVGAnimatedString.h"
  12 #include "SMILStringType.h"
  13 #include "mozilla/SMILValue.h"
  14 #include "mozilla/dom/SVGElement.h"
  15
  16 namespace mozilla {
  17
  18 void SVGAnimatedClass::SetBaseValue(const nsAString& aValue,
  19                                     SVGElement* aSVGElement, bool aDoSetAttr) {
  20   NS_ASSERTION(aSVGElement, "Null element passed to SetBaseValue");
  21
  22   aSVGElement->SetMayHaveClass();
  23   if (aDoSetAttr) {
  24     aSVGElement->SetAttr(kNameSpaceID_None, nsGkAtoms::_class, aValue, true);
  25   }
  26   if (mAnimVal) {
  27     aSVGElement->AnimationNeedsResample();
  28   }
  29 }
  30
  31 void SVGAnimatedClass::GetBaseValue(nsAString& aValue,
  32                                     const SVGElement* aSVGElement) const {
  33   aSVGElement->GetAttr(nsGkAtoms::_class, aValue);
  34 }
  35
  36 void SVGAnimatedClass::GetAnimValue(nsAString& aResult,
  37                                     const SVGElement* aSVGElement) const {
  38   if (mAnimVal) {
  39     aResult = *mAnimVal;
  40     return;
  41   }
  42
  43   aSVGElement->GetAttr(nsGkAtoms::_class, aResult);
  44 }
  45
  46 void SVGAnimatedClass::SetAnimValue(const nsAString& aValue,
  47                                     SVGElement* aSVGElement) {
  48   if (mAnimVal && mAnimVal->Equals(aValue)) {
  49     return;
  50   }
  51   if (!mAnimVal) {
  52     mAnimVal = MakeUnique<nsString>();
  53   }
  54   *mAnimVal = aValue;
  55   aSVGElement->SetMayHaveClass();
  56   aSVGElement->DidAnimateClass();
  57 }
  58
  59 UniquePtr<SMILAttr> SVGAnimatedClass::ToSMILAttr(SVGElement* aSVGElement) {
  60   return MakeUnique<SMILString>(this, aSVGElement);
  61 }
  62
  63 nsresult SVGAnimatedClass::SMILString::ValueFromString(
  64     const nsAString& aStr, const dom::SVGAnimationElement* /*aSrcElement*/,
  65     SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
  66   SMILValue val(SMILStringType::Singleton());
  67
  68   *static_cast<nsAString*>(val.mU.mPtr) = aStr;
  69   aValue = std::move(val);
  70   return NS_OK;
  71 }
  72
  73 SMILValue SVGAnimatedClass::SMILString::GetBaseValue() const {
  74   SMILValue val(SMILStringType::Singleton());
  75   mSVGElement->GetAttr(nsGkAtoms::_class,
  76                        *static_cast<nsAString*>(val.mU.mPtr));
  77   return val;
  78 }
  79
  80 void SVGAnimatedClass::SMILString::ClearAnimValue() {
  81   if (mVal->mAnimVal) {
  82     mVal->mAnimVal = nullptr;
  83     mSVGElement->DidAnimateClass();
  84   }
  85 }
  86
  87 nsresult SVGAnimatedClass::SMILString::SetAnimValue(const SMILValue& aValue) {
  88   NS_ASSERTION(aValue.mType == SMILStringType::Singleton(),
  89                "Unexpected type to assign animated value");
  90   if (aValue.mType == SMILStringType::Singleton()) {
  91     mVal->SetAnimValue(*static_cast<nsAString*>(aValue.mU.mPtr), mSVGElement);
  92   }
  93   return NS_OK;
  94 }
  95
  96 }  // namespace mozilla