forked from mirrors/gecko-dev
58c7fc4d20
Make the WindowProxyHolder hold a strong reference to a BrowsingContext, as in the future we might not have a nsPIDOMWindowOuter (if the document is loaded in a different process). Differential Revision: https://phabricator.services.mozilla.com/D12651 --HG-- extra : moz-landing-system : lando
143 lines
4.9 KiB
C++
143 lines
4.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsInProcessTabChildGlobal_h
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#define nsInProcessTabChildGlobal_h
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#include "mozilla/Attributes.h"
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#include "mozilla/DOMEventTargetHelper.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/dom/ContentFrameMessageManager.h"
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#include "nsCOMPtr.h"
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#include "nsFrameMessageManager.h"
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#include "nsIScriptContext.h"
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#include "nsIScriptObjectPrincipal.h"
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#include "nsIScriptContext.h"
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#include "nsIClassInfo.h"
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#include "nsDocShell.h"
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#include "nsCOMArray.h"
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#include "nsIRunnable.h"
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#include "nsWeakReference.h"
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namespace mozilla {
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class EventChainPreVisitor;
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namespace dom {
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/**
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* This class implements a ContentFrameMessageManager for use by frame loaders
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* in the parent process. It is bound to a DocShell rather than a TabChild, and
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* does not use any IPC infrastructure for its message passing.
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*/
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class InProcessTabChildMessageManager final
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: public ContentFrameMessageManager,
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public nsMessageManagerScriptExecutor,
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public nsIInProcessContentFrameMessageManager,
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public nsSupportsWeakReference,
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public mozilla::dom::ipc::MessageManagerCallback {
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typedef mozilla::dom::ipc::StructuredCloneData StructuredCloneData;
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private:
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InProcessTabChildMessageManager(nsDocShell* aShell, nsIContent* aOwner,
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nsFrameMessageManager* aChrome);
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public:
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static already_AddRefed<InProcessTabChildMessageManager> Create(
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nsDocShell* aShell, nsIContent* aOwner, nsFrameMessageManager* aChrome) {
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RefPtr<InProcessTabChildMessageManager> mm =
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new InProcessTabChildMessageManager(aShell, aOwner, aChrome);
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NS_ENSURE_TRUE(mm->Init(), nullptr);
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return mm.forget();
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}
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(
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InProcessTabChildMessageManager, DOMEventTargetHelper)
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void MarkForCC();
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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Nullable<WindowProxyHolder> GetContent(ErrorResult& aError) override;
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virtual already_AddRefed<nsIDocShell> GetDocShell(
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ErrorResult& aError) override {
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return do_AddRef(mDocShell);
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}
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virtual already_AddRefed<nsIEventTarget> GetTabEventTarget() override;
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virtual uint64_t ChromeOuterWindowID() override;
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NS_FORWARD_SAFE_NSIMESSAGESENDER(mMessageManager)
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NS_DECL_NSIINPROCESSCONTENTFRAMEMESSAGEMANAGER
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void CacheFrameLoader(nsFrameLoader* aFrameLoader);
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/**
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* MessageManagerCallback methods that we override.
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*/
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virtual bool DoSendBlockingMessage(JSContext* aCx, const nsAString& aMessage,
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StructuredCloneData& aData,
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JS::Handle<JSObject*> aCpows,
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nsIPrincipal* aPrincipal,
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nsTArray<StructuredCloneData>* aRetVal,
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bool aIsSync) override;
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virtual nsresult DoSendAsyncMessage(JSContext* aCx, const nsAString& aMessage,
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StructuredCloneData& aData,
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JS::Handle<JSObject*> aCpows,
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nsIPrincipal* aPrincipal) override;
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void GetEventTargetParent(EventChainPreVisitor& aVisitor) override;
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void LoadFrameScript(const nsAString& aURL, bool aRunInGlobalScope);
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void FireUnloadEvent();
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void DisconnectEventListeners();
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void Disconnect();
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void SendMessageToParent(const nsString& aMessage, bool aSync,
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const nsString& aJSON,
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nsTArray<nsString>* aJSONRetVal);
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nsFrameMessageManager* GetInnerManager() {
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return static_cast<nsFrameMessageManager*>(mMessageManager.get());
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}
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void SetOwner(nsIContent* aOwner) { mOwner = aOwner; }
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nsFrameMessageManager* GetChromeMessageManager() {
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return mChromeMessageManager;
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}
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void SetChromeMessageManager(nsFrameMessageManager* aParent) {
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mChromeMessageManager = aParent;
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}
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already_AddRefed<nsFrameLoader> GetFrameLoader();
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protected:
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virtual ~InProcessTabChildMessageManager();
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RefPtr<nsDocShell> mDocShell;
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bool mLoadingScript;
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// Is this the message manager for an in-process <iframe mozbrowser>? This
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// affects where events get sent, so it affects GetEventTargetParent.
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bool mIsBrowserFrame;
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bool mPreventEventsEscaping;
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// We keep a strong reference to the frameloader after we've started
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// teardown. This allows us to dispatch message manager messages during this
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// time.
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RefPtr<nsFrameLoader> mFrameLoader;
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public:
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nsIContent* mOwner;
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nsFrameMessageManager* mChromeMessageManager;
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};
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} // namespace dom
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} // namespace mozilla
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#endif
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