From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- dom/base/WindowProxyHolder.h | 79 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 dom/base/WindowProxyHolder.h (limited to 'dom/base/WindowProxyHolder.h') diff --git a/dom/base/WindowProxyHolder.h b/dom/base/WindowProxyHolder.h new file mode 100644 index 0000000000..938000a725 --- /dev/null +++ b/dom/base/WindowProxyHolder.h @@ -0,0 +1,79 @@ +/* -*- 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 +class MutableHandle; +} // namespace JS + +namespace mozilla { +namespace 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. + */ +class WindowProxyHolder { + public: + WindowProxyHolder() = default; + explicit WindowProxyHolder(BrowsingContext* aBC) : mBrowsingContext(aBC) { + MOZ_ASSERT(mBrowsingContext, "Don't set WindowProxyHolder to null."); + } + explicit WindowProxyHolder(RefPtr&& 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&& 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 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 aTransplantTo, + JS::MutableHandle aValue); + +} // namespace dom +} // namespace mozilla + +#endif /* mozilla_dom_WindowProxyHolder_h__ */ -- cgit v1.2.3