1 files changed, 194 insertions, 0 deletions
diff --git a/dom/svg/nsSVGEnum.cpp b/dom/svg/nsSVGEnum.cpp
new file mode 100644
index 000000000..cb6c7c450
--- /dev/null
+++ b/dom/svg/nsSVGEnum.cpp
@@ -0,0 +1,194 @@
+/* -*- 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 "nsError.h"
+#include "nsSVGAttrTearoffTable.h"
+#include "nsSVGEnum.h"
+#include "nsIAtom.h"
+#include "nsSVGElement.h"
+#include "nsSMILValue.h"
+#include "SMILEnumType.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+static nsSVGAttrTearoffTable<nsSVGEnum, nsSVGEnum::DOMAnimatedEnum>
+  sSVGAnimatedEnumTearoffTable;
+
+nsSVGEnumMapping *
+nsSVGEnum::GetMapping(nsSVGElement *aSVGElement)
+{
+  nsSVGElement::EnumAttributesInfo info = aSVGElement->GetEnumInfo();
+
+  NS_ASSERTION(info.mEnumCount > 0 && mAttrEnum < info.mEnumCount,
+               "mapping request for a non-attrib enum");
+
+  return info.mEnumInfo[mAttrEnum].mMapping;
+}
+
+nsresult
+nsSVGEnum::SetBaseValueAtom(const nsIAtom* aValue, nsSVGElement *aSVGElement)
+{
+  nsSVGEnumMapping *mapping = GetMapping(aSVGElement);
+
+  while (mapping && mapping->mKey) {
+    if (aValue == *(mapping->mKey)) {
+      mIsBaseSet = true;
+      if (mBaseVal != mapping->mVal) {
+        mBaseVal = mapping->mVal;
+        if (!mIsAnimated) {
+          mAnimVal = mBaseVal;
+        }
+        else {
+          aSVGElement->AnimationNeedsResample();
+        }
+        // We don't need to call DidChange* here - we're only called by
+        // nsSVGElement::ParseAttribute under Element::SetAttr,
+        // which takes care of notifying.
+      }
+      return NS_OK;
+    }
+    mapping++;
+  }
+
+  // only a warning since authors may mistype attribute values
+  NS_WARNING("unknown enumeration key");
+  return NS_ERROR_DOM_SYNTAX_ERR;
+}
+
+nsIAtom*
+nsSVGEnum::GetBaseValueAtom(nsSVGElement *aSVGElement)
+{
+  nsSVGEnumMapping *mapping = GetMapping(aSVGElement);
+
+  while (mapping && mapping->mKey) {
+    if (mBaseVal == mapping->mVal) {
+      return *mapping->mKey;
+    }
+    mapping++;
+  }
+  NS_ERROR("unknown enumeration value");
+  return nsGkAtoms::_empty;
+}
+
+nsresult
+nsSVGEnum::SetBaseValue(uint16_t aValue,
+                        nsSVGElement *aSVGElement)
+{
+  nsSVGEnumMapping *mapping = GetMapping(aSVGElement);
+
+  while (mapping && mapping->mKey) {
+    if (mapping->mVal == aValue) {
+      mIsBaseSet = true;
+      if (mBaseVal != uint8_t(aValue)) {
+        mBaseVal = uint8_t(aValue);
+        if (!mIsAnimated) {
+          mAnimVal = mBaseVal;
+        }
+        else {
+          aSVGElement->AnimationNeedsResample();
+        }
+        aSVGElement->DidChangeEnum(mAttrEnum);
+      }
+      return NS_OK;
+    }
+    mapping++;
+  }
+  return NS_ERROR_DOM_SYNTAX_ERR;
+}
+
+void
+nsSVGEnum::SetAnimValue(uint16_t aValue, nsSVGElement *aSVGElement)
+{
+  if (mIsAnimated && aValue == mAnimVal) {
+    return;
+  }
+  mAnimVal = aValue;
+  mIsAnimated = true;
+  aSVGElement->DidAnimateEnum(mAttrEnum);
+}
+
+already_AddRefed<SVGAnimatedEnumeration>
+nsSVGEnum::ToDOMAnimatedEnum(nsSVGElement* aSVGElement)
+{
+  RefPtr<DOMAnimatedEnum> domAnimatedEnum =
+    sSVGAnimatedEnumTearoffTable.GetTearoff(this);
+  if (!domAnimatedEnum) {
+    domAnimatedEnum = new DOMAnimatedEnum(this, aSVGElement);
+    sSVGAnimatedEnumTearoffTable.AddTearoff(this, domAnimatedEnum);
+  }
+
+  return domAnimatedEnum.forget();
+}
+
+nsSVGEnum::DOMAnimatedEnum::~DOMAnimatedEnum()
+{
+  sSVGAnimatedEnumTearoffTable.RemoveTearoff(mVal);
+}
+
+nsISMILAttr*
+nsSVGEnum::ToSMILAttr(nsSVGElement *aSVGElement)
+{
+  return new SMILEnum(this, aSVGElement);
+}
+
+nsresult
+nsSVGEnum::SMILEnum::ValueFromString(const nsAString& aStr,
+                                     const dom::SVGAnimationElement* /*aSrcElement*/,
+                                     nsSMILValue& aValue,
+                                     bool& aPreventCachingOfSandwich) const
+{
+  nsIAtom *valAtom = NS_GetStaticAtom(aStr);
+  if (valAtom) {
+    nsSVGEnumMapping *mapping = mVal->GetMapping(mSVGElement);
+
+    while (mapping && mapping->mKey) {
+      if (valAtom == *(mapping->mKey)) {
+        nsSMILValue val(SMILEnumType::Singleton());
+        val.mU.mUint = mapping->mVal;
+        aValue = val;
+        aPreventCachingOfSandwich = false;
+        return NS_OK;
+      }
+      mapping++;
+    }
+  }
+  
+  // only a warning since authors may mistype attribute values
+  NS_WARNING("unknown enumeration key");
+  return NS_ERROR_FAILURE;
+}
+
+nsSMILValue
+nsSVGEnum::SMILEnum::GetBaseValue() const
+{
+  nsSMILValue val(SMILEnumType::Singleton());
+  val.mU.mUint = mVal->mBaseVal;
+  return val;
+}
+
+void
+nsSVGEnum::SMILEnum::ClearAnimValue()
+{
+  if (mVal->mIsAnimated) {
+    mVal->mIsAnimated = false;
+    mVal->mAnimVal = mVal->mBaseVal;
+    mSVGElement->DidAnimateEnum(mVal->mAttrEnum);
+  }
+}
+
+nsresult
+nsSVGEnum::SMILEnum::SetAnimValue(const nsSMILValue& aValue)
+{
+  NS_ASSERTION(aValue.mType == SMILEnumType::Singleton(),
+               "Unexpected type to assign animated value");
+  if (aValue.mType == SMILEnumType::Singleton()) {
+    MOZ_ASSERT(aValue.mU.mUint <= USHRT_MAX,
+               "Very large enumerated value - too big for uint16_t");
+    mVal->SetAnimValue(uint16_t(aValue.mU.mUint), mSVGElement);
+  }
+  return NS_OK;
+}