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The high-level overview is that the parts of nsWebBrowserPersist which access the DOM have been factored out (as WebBrowserPersistLocalDocument) and abstracted (nsIWebBrowserPersistDocument) such that they can be implemented in the cross-process case using IPC.
80 lines
2.9 KiB
C++
80 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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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 WebBrowserPersistDocumentParent_h__
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#define WebBrowserPersistDocumentParent_h__
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#include "mozilla/Maybe.h"
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#include "mozilla/PWebBrowserPersistDocumentParent.h"
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#include "nsCOMPtr.h"
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#include "nsIWebBrowserPersistDocument.h"
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// This class is the IPC half of the glue between the
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// nsIWebBrowserPersistDocument interface and a remote document. When
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// (and if) it receives the Attributes message it constructs an
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// WebBrowserPersistRemoteDocument and releases it into the XPCOM
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// universe; otherwise, it invokes the document receiver's error
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// callback.
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//
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// This object's lifetime is the normal IPC lifetime; on destruction,
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// it calls its XPCOM reflection (if it exists yet) to remove that
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// reference. Normal deletion occurs when the XPCOM object is being
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// destroyed or after an InitFailure is received and handled.
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//
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// See also: TabParent::StartPersistence.
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namespace mozilla {
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class WebBrowserPersistRemoteDocument;
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class WebBrowserPersistDocumentParent final
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: public PWebBrowserPersistDocumentParent
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{
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public:
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WebBrowserPersistDocumentParent();
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virtual ~WebBrowserPersistDocumentParent();
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// Set a callback to be invoked when the actor leaves the START
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// state. This method must be called exactly once while the actor
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// is still in the START state (or is unconstructed).
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void SetOnReady(nsIWebBrowserPersistDocumentReceiver* aOnReady);
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using Attrs = WebBrowserPersistDocumentAttrs;
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// IPDL methods:
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virtual bool
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RecvAttributes(const Attrs& aAttrs,
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const OptionalInputStreamParams& aPostData,
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nsTArray<FileDescriptor>&& aPostFiles) override;
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virtual bool
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RecvInitFailure(const nsresult& aFailure) override;
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virtual PWebBrowserPersistResourcesParent*
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AllocPWebBrowserPersistResourcesParent() override;
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virtual bool
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DeallocPWebBrowserPersistResourcesParent(PWebBrowserPersistResourcesParent* aActor) override;
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virtual PWebBrowserPersistSerializeParent*
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AllocPWebBrowserPersistSerializeParent(
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const WebBrowserPersistURIMap& aMap,
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const nsCString& aRequestedContentType,
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const uint32_t& aEncoderFlags,
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const uint32_t& aWrapColumn) override;
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virtual bool
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DeallocPWebBrowserPersistSerializeParent(PWebBrowserPersistSerializeParent* aActor) override;
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virtual void
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ActorDestroy(ActorDestroyReason aWhy) override;
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private:
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// This is reset to nullptr when the callback is invoked.
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nsCOMPtr<nsIWebBrowserPersistDocumentReceiver> mOnReady;
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WebBrowserPersistRemoteDocument* mReflection;
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};
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} // namespace mozilla
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#endif // WebBrowserPersistDocumentParent_h__
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