1 files changed, 79 insertions, 0 deletions
diff --git a/dom/smil/SMILSetAnimationFunction.cpp b/dom/smil/SMILSetAnimationFunction.cpp
new file mode 100644
index 0000000000..38f3498c01
--- /dev/null
+++ b/dom/smil/SMILSetAnimationFunction.cpp
@@ -0,0 +1,79 @@
+/* -*- 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 "SMILSetAnimationFunction.h"
+
+namespace mozilla {
+
+inline bool SMILSetAnimationFunction::IsDisallowedAttribute(
+    const nsAtom* aAttribute) const {
+  //
+  // A <set> element is similar to <animate> but lacks:
+  //   AnimationValue.attrib(calcMode, values, keyTimes, keySplines, from, to,
+  //                         by) -- BUT has 'to'
+  //   AnimationAddition.attrib(additive, accumulate)
+  //
+  return aAttribute == nsGkAtoms::calcMode || aAttribute == nsGkAtoms::values ||
+         aAttribute == nsGkAtoms::keyTimes ||
+         aAttribute == nsGkAtoms::keySplines || aAttribute == nsGkAtoms::from ||
+         aAttribute == nsGkAtoms::by || aAttribute == nsGkAtoms::additive ||
+         aAttribute == nsGkAtoms::accumulate;
+}
+
+bool SMILSetAnimationFunction::SetAttr(nsAtom* aAttribute,
+                                       const nsAString& aValue,
+                                       nsAttrValue& aResult,
+                                       nsresult* aParseResult) {
+  if (IsDisallowedAttribute(aAttribute)) {
+    aResult.SetTo(aValue);
+    if (aParseResult) {
+      // SMILANIM 4.2 says:
+      //
+      //   The additive and accumulate attributes are not allowed, and will be
+      //   ignored if specified.
+      //
+      // So at least for those two attributes we shouldn't report an error even
+      // if they're present. For now we'll also just silently ignore other
+      // attribute types too.
+      *aParseResult = NS_OK;
+    }
+    return true;
+  }
+
+  return SMILAnimationFunction::SetAttr(aAttribute, aValue, aResult,
+                                        aParseResult);
+}
+
+bool SMILSetAnimationFunction::UnsetAttr(nsAtom* aAttribute) {
+  if (IsDisallowedAttribute(aAttribute)) {
+    return true;
+  }
+
+  return SMILAnimationFunction::UnsetAttr(aAttribute);
+}
+
+bool SMILSetAnimationFunction::HasAttr(nsAtom* aAttName) const {
+  if (IsDisallowedAttribute(aAttName)) return false;
+
+  return SMILAnimationFunction::HasAttr(aAttName);
+}
+
+const nsAttrValue* SMILSetAnimationFunction::GetAttr(nsAtom* aAttName) const {
+  if (IsDisallowedAttribute(aAttName)) return nullptr;
+
+  return SMILAnimationFunction::GetAttr(aAttName);
+}
+
+bool SMILSetAnimationFunction::GetAttr(nsAtom* aAttName,
+                                       nsAString& aResult) const {
+  if (IsDisallowedAttribute(aAttName)) return false;
+
+  return SMILAnimationFunction::GetAttr(aAttName, aResult);
+}
+
+bool SMILSetAnimationFunction::WillReplace() const { return true; }
+
+}  // namespace mozilla