зеркало из https://github.com/mozilla/gecko-dev.git
101 строка
2.7 KiB
C++
101 строка
2.7 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 nsDSURIContentListener_h__
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#define nsDSURIContentListener_h__
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#include "nsCOMPtr.h"
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#include "nsIURIContentListener.h"
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#include "nsWeakReference.h"
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#include "nsITimer.h"
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class nsDocShell;
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class nsIInterfaceRequestor;
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class nsIWebNavigationInfo;
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class nsPIDOMWindowOuter;
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// Helper Class to eventually close an already openend window
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class MaybeCloseWindowHelper final
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: public nsITimerCallback
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSITIMERCALLBACK
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explicit MaybeCloseWindowHelper(nsIInterfaceRequestor* aContentContext);
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/**
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* Closes the provided window async (if mShouldCloseWindow is true)
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* and returns its opener if the window was just openend.
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*/
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nsIInterfaceRequestor* MaybeCloseWindow();
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void SetShouldCloseWindow(bool aShouldCloseWindow);
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protected:
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~MaybeCloseWindowHelper();
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private:
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/**
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* The dom window associated to handle content.
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*/
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nsCOMPtr<nsIInterfaceRequestor> mContentContext;
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/**
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* Used to close the window on a timer, to avoid any exceptions that are
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* thrown if we try to close the window before it's fully loaded.
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*/
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nsCOMPtr<nsPIDOMWindowOuter> mWindowToClose;
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nsCOMPtr<nsITimer> mTimer;
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/**
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* This is set based on whether the channel indicates that a new window
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* was opened, e.g. for a download, or was blocked. If so, then we
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* close it.
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*/
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bool mShouldCloseWindow;
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};
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class nsDSURIContentListener final
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: public nsIURIContentListener
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, public nsSupportsWeakReference
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{
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friend class nsDocShell;
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public:
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIURICONTENTLISTENER
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nsresult Init();
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protected:
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explicit nsDSURIContentListener(nsDocShell* aDocShell);
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virtual ~nsDSURIContentListener();
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void DropDocShellReference()
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{
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mDocShell = nullptr;
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mExistingJPEGRequest = nullptr;
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mExistingJPEGStreamListener = nullptr;
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}
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protected:
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nsDocShell* mDocShell;
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// Hack to handle multipart images without creating a new viewer
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nsCOMPtr<nsIStreamListener> mExistingJPEGStreamListener;
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nsCOMPtr<nsIChannel> mExistingJPEGRequest;
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// Store the parent listener in either of these depending on
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// if supports weak references or not. Proper weak refs are
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// preferred and encouraged!
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nsWeakPtr mWeakParentContentListener;
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nsIURIContentListener* mParentContentListener;
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nsCOMPtr<nsIWebNavigationInfo> mNavInfo;
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};
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#endif /* nsDSURIContentListener_h__ */
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