1 files changed, 186 insertions, 0 deletions
diff --git a/dom/svg/SVGAnimatedBoolean.cpp b/dom/svg/SVGAnimatedBoolean.cpp
new file mode 100644
index 0000000000..16fff045ec
--- /dev/null
+++ b/dom/svg/SVGAnimatedBoolean.cpp
@@ -0,0 +1,186 @@
+/* -*- 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 "SVGAnimatedBoolean.h"
+
+#include "DOMSVGAnimatedBoolean.h"
+#include "nsError.h"
+#include "SMILBoolType.h"
+#include "SVGAttrTearoffTable.h"
+#include "mozilla/SMILValue.h"
+
+using namespace mozilla::dom;
+
+namespace mozilla {
+
+/* Implementation */
+
+//----------------------------------------------------------------------
+// Helper class: AutoChangeBooleanNotifier
+// Stack-based helper class to ensure DidChangeBoolean is called.
+class MOZ_RAII AutoChangeBooleanNotifier {
+ public:
+  AutoChangeBooleanNotifier(SVGAnimatedBoolean* aBoolean,
+                            SVGElement* aSVGElement, bool aDoSetAttr = true)
+      : mBoolean(aBoolean), mSVGElement(aSVGElement), mDoSetAttr(aDoSetAttr) {
+    MOZ_ASSERT(mBoolean, "Expecting non-null boolean");
+    MOZ_ASSERT(mSVGElement, "Expecting non-null element");
+  }
+
+  ~AutoChangeBooleanNotifier() {
+    if (mDoSetAttr) {
+      mSVGElement->DidChangeBoolean(mBoolean->mAttrEnum);
+    }
+    if (mBoolean->mIsAnimated) {
+      mSVGElement->AnimationNeedsResample();
+    }
+  }
+
+ private:
+  SVGAnimatedBoolean* const mBoolean;
+  SVGElement* const mSVGElement;
+  bool mDoSetAttr;
+};
+
+static inline SVGAttrTearoffTable<SVGAnimatedBoolean, DOMSVGAnimatedBoolean>&
+SVGAnimatedBooleanTearoffTable() {
+  static SVGAttrTearoffTable<SVGAnimatedBoolean, DOMSVGAnimatedBoolean>
+      sSVGAnimatedBooleanTearoffTable;
+  return sSVGAnimatedBooleanTearoffTable;
+}
+
+static bool GetValueFromString(const nsAString& aValueAsString, bool& aValue) {
+  if (aValueAsString.EqualsLiteral("true")) {
+    aValue = true;
+    return true;
+  }
+  if (aValueAsString.EqualsLiteral("false")) {
+    aValue = false;
+    return true;
+  }
+  return false;
+}
+
+static nsresult GetValueFromAtom(const nsAtom* aValueAsAtom, bool* aValue) {
+  if (aValueAsAtom == nsGkAtoms::_true) {
+    *aValue = true;
+    return NS_OK;
+  }
+  if (aValueAsAtom == nsGkAtoms::_false) {
+    *aValue = false;
+    return NS_OK;
+  }
+  return NS_ERROR_DOM_SYNTAX_ERR;
+}
+
+nsresult SVGAnimatedBoolean::SetBaseValueAtom(const nsAtom* aValue,
+                                              SVGElement* aSVGElement) {
+  bool val = false;
+
+  nsresult rv = GetValueFromAtom(aValue, &val);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  // We don't need to call DidChange* here - we're only called by
+  // SVGElement::ParseAttribute under Element::SetAttr,
+  // which takes care of notifying.
+  AutoChangeBooleanNotifier notifier(this, aSVGElement, false);
+
+  mBaseVal = val;
+  if (!mIsAnimated) {
+    mAnimVal = mBaseVal;
+  }
+
+  return NS_OK;
+}
+
+nsAtom* SVGAnimatedBoolean::GetBaseValueAtom() const {
+  return mBaseVal ? nsGkAtoms::_true : nsGkAtoms::_false;
+}
+
+void SVGAnimatedBoolean::SetBaseValue(bool aValue, SVGElement* aSVGElement) {
+  if (aValue == mBaseVal) {
+    return;
+  }
+
+  AutoChangeBooleanNotifier notifier(this, aSVGElement);
+
+  mBaseVal = aValue;
+  if (!mIsAnimated) {
+    mAnimVal = mBaseVal;
+  }
+}
+
+void SVGAnimatedBoolean::SetAnimValue(bool aValue, SVGElement* aSVGElement) {
+  if (mIsAnimated && mAnimVal == aValue) {
+    return;
+  }
+  mAnimVal = aValue;
+  mIsAnimated = true;
+  aSVGElement->DidAnimateBoolean(mAttrEnum);
+}
+
+already_AddRefed<DOMSVGAnimatedBoolean>
+SVGAnimatedBoolean::ToDOMAnimatedBoolean(SVGElement* aSVGElement) {
+  RefPtr<DOMSVGAnimatedBoolean> domAnimatedBoolean =
+      SVGAnimatedBooleanTearoffTable().GetTearoff(this);
+  if (!domAnimatedBoolean) {
+    domAnimatedBoolean = new DOMSVGAnimatedBoolean(this, aSVGElement);
+    SVGAnimatedBooleanTearoffTable().AddTearoff(this, domAnimatedBoolean);
+  }
+
+  return domAnimatedBoolean.forget();
+}
+
+DOMSVGAnimatedBoolean::~DOMSVGAnimatedBoolean() {
+  SVGAnimatedBooleanTearoffTable().RemoveTearoff(mVal);
+}
+
+UniquePtr<SMILAttr> SVGAnimatedBoolean::ToSMILAttr(SVGElement* aSVGElement) {
+  return MakeUnique<SMILBool>(this, aSVGElement);
+}
+
+nsresult SVGAnimatedBoolean::SMILBool::ValueFromString(
+    const nsAString& aStr, const SVGAnimationElement* /*aSrcElement*/,
+    SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
+  bool value;
+  if (!GetValueFromString(aStr, value)) {
+    return NS_ERROR_DOM_SYNTAX_ERR;
+  }
+
+  SMILValue val(SMILBoolType::Singleton());
+  val.mU.mBool = value;
+  aValue = val;
+  aPreventCachingOfSandwich = false;
+
+  return NS_OK;
+}
+
+SMILValue SVGAnimatedBoolean::SMILBool::GetBaseValue() const {
+  SMILValue val(SMILBoolType::Singleton());
+  val.mU.mBool = mVal->mBaseVal;
+  return val;
+}
+
+void SVGAnimatedBoolean::SMILBool::ClearAnimValue() {
+  if (mVal->mIsAnimated) {
+    mVal->mIsAnimated = false;
+    mVal->mAnimVal = mVal->mBaseVal;
+    mSVGElement->DidAnimateBoolean(mVal->mAttrEnum);
+  }
+}
+
+nsresult SVGAnimatedBoolean::SMILBool::SetAnimValue(const SMILValue& aValue) {
+  NS_ASSERTION(aValue.mType == SMILBoolType::Singleton(),
+               "Unexpected type to assign animated value");
+  if (aValue.mType == SMILBoolType::Singleton()) {
+    mVal->SetAnimValue(uint16_t(aValue.mU.mBool), mSVGElement);
+  }
+  return NS_OK;
+}
+
+}  // namespace mozilla