зеркало из https://github.com/mozilla/pjs.git
453 строки
17 KiB
C++
453 строки
17 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications, Inc.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Travis Bogard <travis@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsDocShell_h__
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#define nsDocShell_h__
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#include "nsIPresShell.h"
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#include "nsIDOMNode.h"
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#include "nsIDOMNodeList.h"
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#include "nsIViewManager.h"
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#include "nsIScrollableView.h"
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#include "nsIContentViewer.h"
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#include "nsIPrefBranch.h"
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#include "nsVoidArray.h"
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#include "nsIScriptContext.h"
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#include "nsITimer.h"
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#include "nsCDocShell.h"
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#include "nsIDocShellTreeOwner.h"
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#include "nsIContentViewerContainer.h"
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#include "nsIDeviceContext.h"
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#include "nsDocLoader.h"
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#include "nsIURILoader.h"
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#include "nsIEditorDocShell.h"
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#include "nsWeakReference.h"
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// Local Includes
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#include "nsDSURIContentListener.h"
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#include "nsDocShellEditorData.h"
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// Helper Classes
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#include "nsCOMPtr.h"
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#include "nsPoint.h" // mCurrent/mDefaultScrollbarPreferences
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#include "nsString.h"
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// Threshold value in ms for META refresh based redirects
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#define REFRESH_REDIRECT_TIMER 15000
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// Interfaces Needed
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#include "nsIDocumentCharsetInfo.h"
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#include "nsIDocCharset.h"
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#include "nsIGlobalHistory2.h"
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#include "nsIInterfaceRequestor.h"
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#include "nsIInterfaceRequestorUtils.h"
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#include "nsIPrompt.h"
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#include "nsIRefreshURI.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIScriptGlobalObjectOwner.h"
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#include "nsISHistory.h"
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#include "nsILayoutHistoryState.h"
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#include "nsIStringBundle.h"
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#include "nsISupportsArray.h"
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#include "nsIWebNavigation.h"
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#include "nsIWebPageDescriptor.h"
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#include "nsIWebProgressListener.h"
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#include "nsISHContainer.h"
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#include "nsIDocShellLoadInfo.h"
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#include "nsIDocShellHistory.h"
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#include "nsIURIFixup.h"
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#include "nsIWebBrowserFind.h"
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#include "nsIHttpChannel.h"
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#include "nsDocShellTransferableHooks.h"
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#include "nsIAuthPromptProvider.h"
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#define MAKE_LOAD_TYPE(type, flags) ((type) | ((flags) << 16))
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/* load commands were moved to nsIDocShell.h */
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/* load types are legal combinations of load commands and flags
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*
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* NOTE:
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* Remember to update the IsValidLoadType function below if you change this
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* enum to ensure bad flag combinations will be rejected.
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*/
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enum LoadType {
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LOAD_NORMAL = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_NORMAL, nsIWebNavigation::LOAD_FLAGS_NONE),
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LOAD_NORMAL_REPLACE = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_NORMAL, nsIWebNavigation::LOAD_FLAGS_REPLACE_HISTORY),
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LOAD_HISTORY = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_HISTORY, nsIWebNavigation::LOAD_FLAGS_NONE),
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LOAD_RELOAD_NORMAL = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_RELOAD, nsIWebNavigation::LOAD_FLAGS_NONE),
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LOAD_RELOAD_BYPASS_CACHE = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_RELOAD, nsIWebNavigation::LOAD_FLAGS_BYPASS_CACHE),
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LOAD_RELOAD_BYPASS_PROXY = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_RELOAD, nsIWebNavigation::LOAD_FLAGS_BYPASS_PROXY),
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LOAD_RELOAD_BYPASS_PROXY_AND_CACHE = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_RELOAD, nsIWebNavigation::LOAD_FLAGS_BYPASS_CACHE | nsIWebNavigation::LOAD_FLAGS_BYPASS_PROXY),
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LOAD_LINK = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_NORMAL, nsIWebNavigation::LOAD_FLAGS_IS_LINK),
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LOAD_REFRESH = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_NORMAL, nsIWebNavigation::LOAD_FLAGS_IS_REFRESH),
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LOAD_RELOAD_CHARSET_CHANGE = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_RELOAD, nsIWebNavigation::LOAD_FLAGS_CHARSET_CHANGE),
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LOAD_BYPASS_HISTORY = MAKE_LOAD_TYPE(nsIDocShell::LOAD_CMD_NORMAL, nsIWebNavigation::LOAD_FLAGS_BYPASS_HISTORY)
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// NOTE: Adding a new value? Remember to update IsValidLoadType!
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};
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static inline PRBool IsValidLoadType(PRUint32 aLoadType)
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{
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switch (aLoadType)
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{
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case LOAD_NORMAL:
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case LOAD_NORMAL_REPLACE:
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case LOAD_HISTORY:
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case LOAD_RELOAD_NORMAL:
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case LOAD_RELOAD_BYPASS_CACHE:
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case LOAD_RELOAD_BYPASS_PROXY:
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case LOAD_RELOAD_BYPASS_PROXY_AND_CACHE:
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case LOAD_LINK:
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case LOAD_REFRESH:
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case LOAD_RELOAD_CHARSET_CHANGE:
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case LOAD_BYPASS_HISTORY:
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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/* internally used ViewMode types */
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enum ViewMode {
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viewNormal = 0x0,
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viewSource = 0x1
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};
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//*****************************************************************************
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//*** nsRefreshTimer
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//*****************************************************************************
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class nsRefreshTimer : public nsITimerCallback
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{
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public:
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nsRefreshTimer();
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NS_DECL_ISUPPORTS
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NS_DECL_NSITIMERCALLBACK
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PRInt32 GetDelay() { return mDelay ;}
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nsCOMPtr<nsIDocShell> mDocShell;
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nsCOMPtr<nsIURI> mURI;
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PRInt32 mDelay;
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PRPackedBool mRepeat;
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PRPackedBool mMetaRefresh;
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protected:
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virtual ~nsRefreshTimer();
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};
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//*****************************************************************************
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//*** nsDocShell
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//*****************************************************************************
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class nsDocShell : public nsDocLoader,
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public nsIDocShell,
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public nsIDocShellTreeItem,
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public nsIDocShellTreeNode,
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public nsIDocShellHistory,
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public nsIWebNavigation,
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public nsIBaseWindow,
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public nsIScrollable,
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public nsITextScroll,
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public nsIDocCharset,
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public nsIContentViewerContainer,
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public nsIScriptGlobalObjectOwner,
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public nsIRefreshURI,
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public nsIWebProgressListener,
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public nsIEditorDocShell,
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public nsIWebPageDescriptor,
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public nsIAuthPromptProvider
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{
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friend class nsDSURIContentListener;
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public:
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// Object Management
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nsDocShell();
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virtual nsresult Init();
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_NSIDOCSHELL
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NS_DECL_NSIDOCSHELLTREEITEM
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NS_DECL_NSIDOCSHELLTREENODE
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NS_DECL_NSIDOCSHELLHISTORY
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NS_DECL_NSIWEBNAVIGATION
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NS_DECL_NSIBASEWINDOW
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NS_DECL_NSISCROLLABLE
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NS_DECL_NSITEXTSCROLL
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NS_DECL_NSIDOCCHARSET
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NS_DECL_NSIINTERFACEREQUESTOR
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NS_DECL_NSIWEBPROGRESSLISTENER
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NS_DECL_NSIREFRESHURI
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NS_DECL_NSICONTENTVIEWERCONTAINER
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NS_DECL_NSIEDITORDOCSHELL
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NS_DECL_NSIWEBPAGEDESCRIPTOR
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NS_DECL_NSIAUTHPROMPTPROVIDER
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NS_IMETHOD Stop() {
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// Need this here because otherwise nsIWebNavigation::Stop
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// overrides the docloader's Stop()
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return nsDocLoader::Stop();
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}
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// Need to implement (and forward) nsISecurityEventSink, because
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// nsIWebProgressListener has methods with identical names...
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NS_FORWARD_NSISECURITYEVENTSINK(nsDocLoader::)
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nsDocShellInfoLoadType ConvertLoadTypeToDocShellLoadInfo(PRUint32 aLoadType);
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PRUint32 ConvertDocShellLoadInfoToLoadType(nsDocShellInfoLoadType aDocShellLoadType);
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// nsIScriptGlobalObjectOwner methods
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virtual nsIScriptGlobalObject* GetScriptGlobalObject();
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protected:
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// Object Management
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virtual ~nsDocShell();
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virtual void DestroyChildren();
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// Content Viewer Management
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NS_IMETHOD EnsureContentViewer();
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NS_IMETHOD EnsureDeviceContext();
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NS_IMETHOD CreateAboutBlankContentViewer();
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NS_IMETHOD CreateContentViewer(const char * aContentType,
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nsIRequest * request, nsIStreamListener ** aContentHandler);
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NS_IMETHOD NewContentViewerObj(const char * aContentType,
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nsIRequest * request, nsILoadGroup * aLoadGroup,
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nsIStreamListener ** aContentHandler, nsIContentViewer ** aViewer);
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NS_IMETHOD SetupNewViewer(nsIContentViewer * aNewViewer);
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NS_IMETHOD GetEldestPresContext(nsPresContext** aPresContext);
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void GetCurrentDocumentOwner(nsISupports ** aOwner);
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virtual nsresult DoURILoad(nsIURI * aURI,
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nsIURI * aReferrer,
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PRBool aSendReferrer,
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nsISupports * aOwner,
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const char * aTypeHint,
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nsIInputStream * aPostData,
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nsIInputStream * aHeadersData,
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PRBool firstParty,
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nsIDocShell ** aDocShell,
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nsIRequest ** aRequest);
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NS_IMETHOD AddHeadersToChannel(nsIInputStream * aHeadersData,
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nsIChannel * aChannel);
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virtual nsresult DoChannelLoad(nsIChannel * aChannel,
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nsIURILoader * aURILoader);
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NS_IMETHOD ScrollIfAnchor(nsIURI * aURI, PRBool * aWasAnchor, PRUint32 aLoadType, nscoord *cx, nscoord *cy);
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NS_IMETHOD OnLoadingSite(nsIChannel * aChannel);
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NS_IMETHOD OnNewURI(nsIURI * aURI, nsIChannel * aChannel, PRUint32 aLoadType);
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virtual void SetReferrerURI(nsIURI * aURI);
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// Session History
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virtual PRBool ShouldAddToSessionHistory(nsIURI * aURI);
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virtual nsresult AddToSessionHistory(nsIURI * aURI, nsIChannel * aChannel,
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nsISHEntry ** aNewEntry);
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nsresult DoAddChildSHEntry(nsISHEntry* aNewEntry, PRInt32 aChildOffset);
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NS_IMETHOD LoadHistoryEntry(nsISHEntry * aEntry, PRUint32 aLoadType);
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NS_IMETHOD PersistLayoutHistoryState();
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NS_IMETHOD CloneAndReplace(nsISHEntry * srcEntry, PRUint32 aCloneID,
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nsISHEntry * areplaceEntry, nsISHEntry ** destEntry);
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nsresult GetRootSessionHistory(nsISHistory ** aReturn);
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nsresult GetHttpChannel(nsIChannel * aChannel, nsIHttpChannel ** aReturn);
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PRBool ShouldDiscardLayoutState(nsIHttpChannel * aChannel);
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// Global History
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nsresult AddToGlobalHistory(nsIURI * aURI, PRBool aRedirect, nsIURI * aReferrer);
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// Helper Routines
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NS_IMETHOD GetPromptAndStringBundle(nsIPrompt ** aPrompt,
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nsIStringBundle ** aStringBundle);
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NS_IMETHOD GetChildOffset(nsIDOMNode * aChild, nsIDOMNode * aParent,
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PRInt32 * aOffset);
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NS_IMETHOD GetRootScrollableView(nsIScrollableView ** aOutScrollView);
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NS_IMETHOD EnsureContentListener();
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NS_IMETHOD EnsureScriptEnvironment();
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NS_IMETHOD EnsureEditorData();
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nsresult EnsureTransferableHookData();
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NS_IMETHOD EnsureFind();
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NS_IMETHOD RefreshURIFromQueue();
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NS_IMETHOD DisplayLoadError(nsresult aError, nsIURI *aURI, const PRUnichar *aURL);
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NS_IMETHOD LoadErrorPage(nsIURI *aURI, const PRUnichar *aURL, const PRUnichar *aPage, const PRUnichar *aDescription);
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PRBool IsPrintingOrPP(PRBool aDisplayErrorDialog = PR_TRUE);
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nsresult SetBaseUrlForWyciwyg(nsIContentViewer * aContentViewer);
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static inline PRUint32
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PRTimeToSeconds(PRTime t_usec)
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{
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PRTime usec_per_sec;
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PRUint32 t_sec;
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LL_I2L(usec_per_sec, PR_USEC_PER_SEC);
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LL_DIV(t_usec, t_usec, usec_per_sec);
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LL_L2I(t_sec, t_usec);
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return t_sec;
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}
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virtual nsresult FindTarget(const PRUnichar *aTargetName,
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PRBool *aIsNewWindow,
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nsIDocShell **aResult);
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PRBool IsFrame();
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//
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// Helper method that is called when a new document (including any
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// sub-documents - ie. frames) has been completely loaded.
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//
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virtual nsresult EndPageLoad(nsIWebProgress * aProgress,
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nsIChannel * aChannel,
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nsresult aResult);
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nsresult CheckLoadingPermissions();
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protected:
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// Override the parent setter from nsDocLoader
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virtual nsresult SetDocLoaderParent(nsDocLoader * aLoader);
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PRPackedBool mAllowSubframes;
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PRPackedBool mAllowPlugins;
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PRPackedBool mAllowJavascript;
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PRPackedBool mAllowMetaRedirects;
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PRPackedBool mAllowImages;
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PRPackedBool mFocusDocFirst;
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PRPackedBool mHasFocus;
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PRPackedBool mCreatingDocument; // (should be) debugging only
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PRPackedBool mUseErrorPages;
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PRPackedBool mAllowAuth;
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PRPackedBool mFiredUnloadEvent;
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// this flag is for bug #21358. a docshell may load many urls
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// which don't result in new documents being created (i.e. a new
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// content viewer) we want to make sure we don't call a on load
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// event more than once for a given content viewer.
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PRPackedBool mEODForCurrentDocument;
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PRPackedBool mURIResultedInDocument;
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PRPackedBool mIsBeingDestroyed;
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// Validate window targets to prevent frameset spoofing
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PRPackedBool mValidateOrigin;
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PRPackedBool mIsExecutingOnLoadHandler;
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// Indicates that a DocShell in this "docshell tree" is printing
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PRPackedBool mIsPrintingOrPP;
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PRUint32 mAppType;
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// Offset in the parent's child list.
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PRInt32 mChildOffset;
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PRUint32 mBusyFlags;
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PRInt32 mMarginWidth;
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PRInt32 mMarginHeight;
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PRInt32 mItemType;
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PRUint32 mLoadType;
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nsString mName;
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nsString mTitle;
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/**
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* Content-Type Hint of the most-recently initiated load. Used for
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* session history entries.
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*/
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nsCString mContentTypeHint;
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nsCOMPtr<nsISupportsArray> mRefreshURIList;
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nsDSURIContentListener * mContentListener;
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nsRect mBounds; // Dimensions of the docshell
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nsCOMPtr<nsIContentViewer> mContentViewer;
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nsCOMPtr<nsIDocumentCharsetInfo> mDocumentCharsetInfo;
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nsCOMPtr<nsIDeviceContext> mDeviceContext;
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nsCOMPtr<nsIWidget> mParentWidget;
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nsCOMPtr<nsIPrefBranch> mPrefs;
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nsCOMPtr<nsIURI> mCurrentURI;
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nsCOMPtr<nsIURI> mReferrerURI;
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nsCOMPtr<nsIScriptGlobalObject> mScriptGlobal;
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nsCOMPtr<nsIScriptContext> mScriptContext;
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nsCOMPtr<nsISHistory> mSessionHistory;
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nsCOMPtr<nsIGlobalHistory2> mGlobalHistory;
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nsCOMPtr<nsIWebBrowserFind> mFind;
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nsPoint mDefaultScrollbarPref; // persistent across doc loads
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// Reference to the SHEntry for this docshell until the page is destroyed.
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// Somebody give me better name
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nsCOMPtr<nsISHEntry> mOSHE;
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// Reference to the SHEntry for this docshell until the page is loaded
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// Somebody give me better name
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nsCOMPtr<nsISHEntry> mLSHE;
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// Editor stuff
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nsDocShellEditorData* mEditorData; // editor data, if any
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// Transferable hooks/callbacks
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nsCOMPtr<nsIClipboardDragDropHookList> mTransferableHookData;
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// WEAK REFERENCES BELOW HERE.
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// Note these are intentionally not addrefd. Doing so will create a cycle.
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// For that reasons don't use nsCOMPtr.
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nsIDocShellTreeOwner * mTreeOwner; // Weak Reference
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nsIChromeEventHandler * mChromeEventHandler; //Weak Reference
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static nsIURIFixup *sURIFixup;
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public:
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class InterfaceRequestorProxy : public nsIInterfaceRequestor {
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public:
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InterfaceRequestorProxy(nsIInterfaceRequestor* p);
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virtual ~InterfaceRequestorProxy();
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NS_DECL_ISUPPORTS
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NS_DECL_NSIINTERFACEREQUESTOR
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protected:
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InterfaceRequestorProxy() {}
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nsWeakPtr mWeakPtr;
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};
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};
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#endif /* nsDocShell_h__ */
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