зеркало из https://github.com/mozilla/gecko-dev.git
73 строки
2.2 KiB
C++
73 строки
2.2 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/. */
|
|
|
|
/* representation of CSSRuleList for stylo */
|
|
|
|
#ifndef mozilla_ServoCSSRuleList_h
|
|
#define mozilla_ServoCSSRuleList_h
|
|
|
|
#include "mozilla/ServoBindingTypes.h"
|
|
#include "mozilla/dom/CSSRuleList.h"
|
|
|
|
namespace mozilla {
|
|
|
|
class ServoStyleSheet;
|
|
namespace css {
|
|
class Rule;
|
|
} // namespace css
|
|
|
|
class ServoCSSRuleList final : public dom::CSSRuleList
|
|
{
|
|
public:
|
|
ServoCSSRuleList(ServoStyleSheet* aStyleSheet,
|
|
already_AddRefed<ServoCssRules> aRawRules);
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(ServoCSSRuleList, dom::CSSRuleList)
|
|
|
|
ServoStyleSheet* GetParentObject() final { return mStyleSheet; }
|
|
|
|
nsIDOMCSSRule* IndexedGetter(uint32_t aIndex, bool& aFound) final;
|
|
uint32_t Length() final { return mRules.Length(); }
|
|
|
|
void DropReference();
|
|
|
|
css::Rule* GetRule(uint32_t aIndex);
|
|
nsresult InsertRule(const nsAString& aRule, uint32_t aIndex);
|
|
nsresult DeleteRule(uint32_t aIndex);
|
|
|
|
private:
|
|
virtual ~ServoCSSRuleList();
|
|
|
|
// XXX Is it possible to have an address lower than or equal to 255?
|
|
// Is it possible to have more than 255 CSS rule types?
|
|
static const uintptr_t kMaxRuleType = UINT8_MAX;
|
|
|
|
static uintptr_t CastToUint(css::Rule* aPtr) {
|
|
return reinterpret_cast<uintptr_t>(aPtr);
|
|
}
|
|
static css::Rule* CastToPtr(uintptr_t aInt) {
|
|
MOZ_ASSERT(aInt > kMaxRuleType);
|
|
return reinterpret_cast<css::Rule*>(aInt);
|
|
}
|
|
|
|
template<typename Func>
|
|
void EnumerateInstantiatedRules(Func aCallback);
|
|
|
|
// mStyleSheet may be nullptr when it drops the reference to us.
|
|
ServoStyleSheet* mStyleSheet;
|
|
RefPtr<ServoCssRules> mRawRules;
|
|
// Array stores either a number indicating rule type, or a pointer to
|
|
// css::Rule. If the value is less than kMaxRuleType, the given rule
|
|
// instance has not been constructed, and the value means the type
|
|
// of the rule. Otherwise, it is a pointer.
|
|
nsTArray<uintptr_t> mRules;
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_ServoCSSRuleList_h
|