mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-23 12:51:06 +00:00
469b0c1c65
Depends on D145737 Differential Revision: https://phabricator.services.mozilla.com/D145738
78 lines
2.6 KiB
C++
78 lines
2.6 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_dom_WindowProxyHolder_h__
|
|
#define mozilla_dom_WindowProxyHolder_h__
|
|
|
|
#include "mozilla/dom/BrowsingContext.h"
|
|
|
|
struct JSContext;
|
|
class JSObject;
|
|
|
|
namespace JS {
|
|
template <typename T>
|
|
class MutableHandle;
|
|
} // namespace JS
|
|
|
|
namespace mozilla::dom {
|
|
|
|
/**
|
|
* This class is used for passing arguments and the return value for WebIDL
|
|
* binding code that takes/returns a WindowProxy object and for WebIDL
|
|
* unions/dictionaries that contain a WindowProxy member. It should never
|
|
* contain null; if the value in WebIDL is nullable the binding code will use a
|
|
* Nullable<WindowProxyHolder>.
|
|
*/
|
|
class WindowProxyHolder {
|
|
public:
|
|
WindowProxyHolder() = default;
|
|
explicit WindowProxyHolder(BrowsingContext* aBC) : mBrowsingContext(aBC) {
|
|
MOZ_ASSERT(mBrowsingContext, "Don't set WindowProxyHolder to null.");
|
|
}
|
|
explicit WindowProxyHolder(RefPtr<BrowsingContext>&& aBC)
|
|
: mBrowsingContext(std::move(aBC)) {
|
|
MOZ_ASSERT(mBrowsingContext, "Don't set WindowProxyHolder to null.");
|
|
}
|
|
WindowProxyHolder& operator=(BrowsingContext* aBC) {
|
|
mBrowsingContext = aBC;
|
|
MOZ_ASSERT(mBrowsingContext, "Don't set WindowProxyHolder to null.");
|
|
return *this;
|
|
}
|
|
WindowProxyHolder& operator=(RefPtr<BrowsingContext>&& aBC) {
|
|
mBrowsingContext = std::move(aBC);
|
|
MOZ_ASSERT(mBrowsingContext, "Don't set WindowProxyHolder to null.");
|
|
return *this;
|
|
}
|
|
|
|
BrowsingContext* get() const {
|
|
MOZ_ASSERT(mBrowsingContext, "WindowProxyHolder hasn't been initialized.");
|
|
return mBrowsingContext;
|
|
}
|
|
|
|
private:
|
|
friend void ImplCycleCollectionUnlink(WindowProxyHolder& aProxy);
|
|
|
|
RefPtr<BrowsingContext> mBrowsingContext;
|
|
};
|
|
|
|
inline void ImplCycleCollectionTraverse(
|
|
nsCycleCollectionTraversalCallback& aCallback, WindowProxyHolder& aProxy,
|
|
const char* aName, uint32_t aFlags = 0) {
|
|
CycleCollectionNoteChild(aCallback, aProxy.get(), "mBrowsingContext", aFlags);
|
|
}
|
|
|
|
inline void ImplCycleCollectionUnlink(WindowProxyHolder& aProxy) {
|
|
aProxy.mBrowsingContext = nullptr;
|
|
}
|
|
|
|
extern bool GetRemoteOuterWindowProxy(JSContext* aCx, BrowsingContext* aContext,
|
|
JS::Handle<JSObject*> aTransplantTo,
|
|
JS::MutableHandle<JSObject*> aValue);
|
|
|
|
} // namespace mozilla::dom
|
|
|
|
#endif /* mozilla_dom_WindowProxyHolder_h__ */
|