gecko-dev/layout/style/ServoDeclarationBlock.h

82 строки
2.9 KiB
C++

/* -*- 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/. */
#ifndef mozilla_ServoDeclarationBlock_h
#define mozilla_ServoDeclarationBlock_h
#include "mozilla/ServoBindings.h"
#include "mozilla/DeclarationBlock.h"
namespace mozilla {
class ServoDeclarationBlock final : public DeclarationBlock
{
public:
explicit ServoDeclarationBlock(
already_AddRefed<RawServoDeclarationBlock> aRaw)
: DeclarationBlock(), mRaw(aRaw) {}
ServoDeclarationBlock()
: ServoDeclarationBlock(Servo_DeclarationBlock_CreateEmpty().Consume()) {}
ServoDeclarationBlock(const ServoDeclarationBlock& aCopy)
: DeclarationBlock(aCopy)
, mRaw(Servo_DeclarationBlock_Clone(aCopy.mRaw).Consume()) {}
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(ServoDeclarationBlock)
static already_AddRefed<ServoDeclarationBlock>
FromCssText(const nsAString& aCssText, URLExtraData* aExtraData,
nsCompatibility aMode, css::Loader* aLoader);
RawServoDeclarationBlock* Raw() const { return mRaw; }
RawServoDeclarationBlock* const* RefRaw() const {
static_assert(sizeof(RefPtr<RawServoDeclarationBlock>) ==
sizeof(RawServoDeclarationBlock*),
"RefPtr should just be a pointer");
return reinterpret_cast<RawServoDeclarationBlock* const*>(&mRaw);
}
const RawServoDeclarationBlockStrong* RefRawStrong() const
{
static_assert(sizeof(RefPtr<RawServoDeclarationBlock>) ==
sizeof(RawServoDeclarationBlock*),
"RefPtr should just be a pointer");
static_assert(sizeof(RefPtr<RawServoDeclarationBlock>) ==
sizeof(RawServoDeclarationBlockStrong),
"RawServoDeclarationBlockStrong should be the same as RefPtr");
return reinterpret_cast<const RawServoDeclarationBlockStrong*>(&mRaw);
}
void ToString(nsAString& aResult) const {
Servo_DeclarationBlock_GetCssText(mRaw, &aResult);
}
uint32_t Count() const {
return Servo_DeclarationBlock_Count(mRaw);
}
bool GetNthProperty(uint32_t aIndex, nsAString& aReturn) const {
aReturn.Truncate();
return Servo_DeclarationBlock_GetNthProperty(mRaw, aIndex, &aReturn);
}
void GetPropertyValue(const nsAString& aProperty, nsAString& aValue) const;
void GetPropertyValueByID(nsCSSPropertyID aPropID, nsAString& aValue) const;
bool GetPropertyIsImportant(const nsAString& aProperty) const;
// The two functions blow return whether any property was removed.
bool RemoveProperty(const nsAString& aProperty);
bool RemovePropertyByID(nsCSSPropertyID aPropID);
private:
~ServoDeclarationBlock() {}
RefPtr<RawServoDeclarationBlock> mRaw;
};
} // namespace mozilla
#endif // mozilla_ServoDeclarationBlock_h