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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/style/ServoDeclarationBlock.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'layout/style/ServoDeclarationBlock.cpp')
-rw-r--r--layout/style/ServoDeclarationBlock.cpp110
1 files changed, 110 insertions, 0 deletions
diff --git a/layout/style/ServoDeclarationBlock.cpp b/layout/style/ServoDeclarationBlock.cpp
new file mode 100644
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+++ b/layout/style/ServoDeclarationBlock.cpp
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "mozilla/ServoDeclarationBlock.h"
+
+#include "mozilla/ServoBindings.h"
+
+#include "nsCSSProps.h"
+
+namespace mozilla {
+
+/* static */ already_AddRefed<ServoDeclarationBlock>
+ServoDeclarationBlock::FromCssText(const nsAString& aCssText)
+{
+ NS_ConvertUTF16toUTF8 value(aCssText);
+ RefPtr<RawServoDeclarationBlock>
+ raw = Servo_ParseStyleAttribute(&value).Consume();
+ RefPtr<ServoDeclarationBlock> decl = new ServoDeclarationBlock(raw.forget());
+ return decl.forget();
+}
+
+/**
+ * An RAII class holding an atom for the given property.
+ */
+class MOZ_STACK_CLASS PropertyAtomHolder
+{
+public:
+ explicit PropertyAtomHolder(const nsAString& aProperty)
+ {
+ nsCSSPropertyID propID =
+ nsCSSProps::LookupProperty(aProperty, CSSEnabledState::eForAllContent);
+ if (propID == eCSSPropertyExtra_variable) {
+ mIsCustomProperty = true;
+ mAtom = NS_Atomize(
+ Substring(aProperty, CSS_CUSTOM_NAME_PREFIX_LENGTH)).take();
+ } else {
+ mIsCustomProperty = false;
+ if (propID != eCSSProperty_UNKNOWN) {
+ mAtom = nsCSSProps::AtomForProperty(propID);
+ } else {
+ mAtom = nullptr;
+ }
+ }
+ }
+
+ ~PropertyAtomHolder()
+ {
+ if (mIsCustomProperty) {
+ NS_RELEASE(mAtom);
+ }
+ }
+
+ explicit operator bool() const { return !!mAtom; }
+ nsIAtom* Atom() const { MOZ_ASSERT(mAtom); return mAtom; }
+ bool IsCustomProperty() const { return mIsCustomProperty; }
+
+private:
+ nsIAtom* mAtom;
+ bool mIsCustomProperty;
+};
+
+void
+ServoDeclarationBlock::GetPropertyValue(const nsAString& aProperty,
+ nsAString& aValue) const
+{
+ if (PropertyAtomHolder holder{aProperty}) {
+ Servo_DeclarationBlock_GetPropertyValue(
+ mRaw, holder.Atom(), holder.IsCustomProperty(), &aValue);
+ }
+}
+
+void
+ServoDeclarationBlock::GetPropertyValueByID(nsCSSPropertyID aPropID,
+ nsAString& aValue) const
+{
+ nsIAtom* atom = nsCSSProps::AtomForProperty(aPropID);
+ Servo_DeclarationBlock_GetPropertyValue(mRaw, atom, false, &aValue);
+}
+
+bool
+ServoDeclarationBlock::GetPropertyIsImportant(const nsAString& aProperty) const
+{
+ if (PropertyAtomHolder holder{aProperty}) {
+ return Servo_DeclarationBlock_GetPropertyIsImportant(
+ mRaw, holder.Atom(), holder.IsCustomProperty());
+ }
+ return false;
+}
+
+void
+ServoDeclarationBlock::RemoveProperty(const nsAString& aProperty)
+{
+ AssertMutable();
+ if (PropertyAtomHolder holder{aProperty}) {
+ Servo_DeclarationBlock_RemoveProperty(mRaw, holder.Atom(),
+ holder.IsCustomProperty());
+ }
+}
+
+void
+ServoDeclarationBlock::RemovePropertyByID(nsCSSPropertyID aPropID)
+{
+ AssertMutable();
+ nsIAtom* atom = nsCSSProps::AtomForProperty(aPropID);
+ Servo_DeclarationBlock_RemoveProperty(mRaw, atom, false);
+}
+
+} // namespace mozilla