1 files changed, 169 insertions, 0 deletions
diff --git a/dom/svg/SVGAnimatedInteger.cpp b/dom/svg/SVGAnimatedInteger.cpp
new file mode 100644
index 0000000000..2815e4df11
--- /dev/null
+++ b/dom/svg/SVGAnimatedInteger.cpp
@@ -0,0 +1,169 @@
+/* -*- 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 "SVGAnimatedInteger.h"
+
+#include "nsError.h"
+#include "SMILIntegerType.h"
+#include "SVGAttrTearoffTable.h"
+#include "mozilla/SMILValue.h"
+#include "mozilla/SVGContentUtils.h"
+
+using namespace mozilla::dom;
+
+namespace mozilla {
+
+/* Implementation */
+
+//----------------------------------------------------------------------
+// Helper class: AutoChangeIntegerNotifier
+// Stack-based helper class ensure DidChangeInteger is called.
+class MOZ_RAII AutoChangeIntegerNotifier {
+ public:
+  AutoChangeIntegerNotifier(SVGAnimatedInteger* aInteger,
+                            SVGElement* aSVGElement, bool aDoSetAttr = true)
+      : mInteger(aInteger), mSVGElement(aSVGElement), mDoSetAttr(aDoSetAttr) {
+    MOZ_ASSERT(mInteger, "Expecting non-null integer");
+    MOZ_ASSERT(mSVGElement, "Expecting non-null element");
+  }
+
+  ~AutoChangeIntegerNotifier() {
+    if (mDoSetAttr) {
+      mSVGElement->DidChangeInteger(mInteger->mAttrEnum);
+    }
+    if (mInteger->mIsAnimated) {
+      mSVGElement->AnimationNeedsResample();
+    }
+  }
+
+ private:
+  SVGAnimatedInteger* const mInteger;
+  SVGElement* const mSVGElement;
+  bool mDoSetAttr;
+};
+
+static SVGAttrTearoffTable<SVGAnimatedInteger,
+                           SVGAnimatedInteger::DOMAnimatedInteger>
+    sSVGAnimatedIntegerTearoffTable;
+
+nsresult SVGAnimatedInteger::SetBaseValueString(const nsAString& aValueAsString,
+                                                SVGElement* aSVGElement) {
+  bool success;
+  auto token = SVGContentUtils::GetAndEnsureOneToken(aValueAsString, success);
+
+  if (!success) {
+    return NS_ERROR_DOM_SYNTAX_ERR;
+  }
+
+  int32_t value;
+
+  if (!SVGContentUtils::ParseInteger(token, value)) {
+    return NS_ERROR_DOM_SYNTAX_ERR;
+  }
+
+  AutoChangeIntegerNotifier notifier(this, aSVGElement, false);
+
+  mIsBaseSet = true;
+  mBaseVal = value;
+  if (!mIsAnimated) {
+    mAnimVal = mBaseVal;
+  }
+  return NS_OK;
+}
+
+void SVGAnimatedInteger::GetBaseValueString(nsAString& aValueAsString) {
+  aValueAsString.Truncate();
+  aValueAsString.AppendInt(mBaseVal);
+}
+
+void SVGAnimatedInteger::SetBaseValue(int aValue, SVGElement* aSVGElement) {
+  // We can't just rely on SetParsedAttrValue (as called by DidChangeInteger)
+  // detecting redundant changes since it will compare false if the existing
+  // attribute value has an associated serialized version (a string value) even
+  // if the integers match due to the way integers are stored in nsAttrValue.
+  if (aValue == mBaseVal && mIsBaseSet) {
+    return;
+  }
+
+  AutoChangeIntegerNotifier notifier(this, aSVGElement);
+
+  mBaseVal = aValue;
+  mIsBaseSet = true;
+  if (!mIsAnimated) {
+    mAnimVal = mBaseVal;
+  }
+}
+
+void SVGAnimatedInteger::SetAnimValue(int aValue, SVGElement* aSVGElement) {
+  if (mIsAnimated && aValue == mAnimVal) {
+    return;
+  }
+  mAnimVal = aValue;
+  mIsAnimated = true;
+  aSVGElement->DidAnimateInteger(mAttrEnum);
+}
+
+already_AddRefed<DOMSVGAnimatedInteger>
+SVGAnimatedInteger::ToDOMAnimatedInteger(SVGElement* aSVGElement) {
+  RefPtr<DOMAnimatedInteger> domAnimatedInteger =
+      sSVGAnimatedIntegerTearoffTable.GetTearoff(this);
+  if (!domAnimatedInteger) {
+    domAnimatedInteger = new DOMAnimatedInteger(this, aSVGElement);
+    sSVGAnimatedIntegerTearoffTable.AddTearoff(this, domAnimatedInteger);
+  }
+
+  return domAnimatedInteger.forget();
+}
+
+SVGAnimatedInteger::DOMAnimatedInteger::~DOMAnimatedInteger() {
+  sSVGAnimatedIntegerTearoffTable.RemoveTearoff(mVal);
+}
+
+UniquePtr<SMILAttr> SVGAnimatedInteger::ToSMILAttr(SVGElement* aSVGElement) {
+  return MakeUnique<SMILInteger>(this, aSVGElement);
+}
+
+nsresult SVGAnimatedInteger::SMILInteger::ValueFromString(
+    const nsAString& aStr, const dom::SVGAnimationElement* /*aSrcElement*/,
+    SMILValue& aValue, bool& aPreventCachingOfSandwich) const {
+  int32_t val;
+
+  if (!SVGContentUtils::ParseInteger(aStr, val)) {
+    return NS_ERROR_DOM_SYNTAX_ERR;
+  }
+
+  SMILValue smilVal(SMILIntegerType::Singleton());
+  smilVal.mU.mInt = val;
+  aValue = smilVal;
+  aPreventCachingOfSandwich = false;
+  return NS_OK;
+}
+
+SMILValue SVGAnimatedInteger::SMILInteger::GetBaseValue() const {
+  SMILValue val(SMILIntegerType::Singleton());
+  val.mU.mInt = mVal->mBaseVal;
+  return val;
+}
+
+void SVGAnimatedInteger::SMILInteger::ClearAnimValue() {
+  if (mVal->mIsAnimated) {
+    mVal->mIsAnimated = false;
+    mVal->mAnimVal = mVal->mBaseVal;
+    mSVGElement->DidAnimateInteger(mVal->mAttrEnum);
+  }
+}
+
+nsresult SVGAnimatedInteger::SMILInteger::SetAnimValue(
+    const SMILValue& aValue) {
+  NS_ASSERTION(aValue.mType == SMILIntegerType::Singleton(),
+               "Unexpected type to assign animated value");
+  if (aValue.mType == SMILIntegerType::Singleton()) {
+    mVal->SetAnimValue(int(aValue.mU.mInt), mSVGElement);
+  }
+  return NS_OK;
+}
+
+}  // namespace mozilla