111 lines
3.0 KiB
C++
111 lines
3.0 KiB
C++
/* -*- 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
|