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gecko-dev/docshell/base/nsDocShell.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is the Mozilla browser.
*
* The Initial Developer of the Original Code is Netscape
* Communications, Inc. Portions created by Netscape are
* Copyright (C) 1999, Mozilla. All Rights Reserved.
*
* Contributor(s):
* Travis Bogard <travis@netscape.com>
*/
#ifndef nsDocShell_h__
#define nsDocShell_h__
#include "nsIPresShell.h"
#include "nsIDOMNode.h"
#include "nsIDOMNodeList.h"
#include "nsIViewManager.h"
#include "nsIScrollableView.h"
#include "nsIContentViewer.h"
#include "nsIPref.h"
#include "nsVoidArray.h"
#include "nsIScriptContext.h"
#include "nsCDocShell.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIContentViewerContainer.h"
#include "nsIDeviceContext.h"
#include "nsIDocumentLoader.h"
#include "nsIURILoader.h"
#include "nsWeakReference.h"
// Local Includes
#include "nsDSURIContentListener.h"
// Helper Classes
#include "nsCOMPtr.h"
#include "nsPoint.h" // mCurrent/mDefaultScrollbarPreferences
#include "nsString.h"
// Threshold value in ms for META refresh based redirects
#define REFRESH_REDIRECT_TIMER 15000
// Interfaces Needed
#include "nsIDocumentCharsetInfo.h"
#include "nsIDocCharset.h"
#include "nsIGlobalHistory.h"
#include "nsIInterfaceRequestor.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIPrompt.h"
#include "nsIRefreshURI.h"
#include "nsIScriptGlobalObject.h"
#include "nsIScriptGlobalObjectOwner.h"
#include "nsISHistory.h"
#include "nsIStringBundle.h"
#include "nsISupportsArray.h"
#include "nsITimerCallback.h"
#include "nsIWebNavigation.h"
#include "nsIWebProgressListener.h"
#include "nsISHContainer.h"
#include "nsIDocShellLoadInfo.h"
#include "nsIDocShellHistory.h"
#include "nsIURIFixup.h"
#include "nsIWebBrowserFind.h"
#include "nsIHttpChannel.h"
#define MAKE_LOAD_TYPE(type, flags) ((type) | ((flags) << 16))
/* load commands */
enum LoadCmd {
LOAD_CMD_NORMAL = 0x1, // Normal load
LOAD_CMD_RELOAD = 0x2, // Reload
LOAD_CMD_HISTORY = 0x4 // Load from history
};
/* load types are legal combinations of load commands and flags */
enum LoadType {
LOAD_NORMAL = MAKE_LOAD_TYPE(LOAD_CMD_NORMAL, nsIWebNavigation::LOAD_FLAGS_NONE),
LOAD_NORMAL_REPLACE = MAKE_LOAD_TYPE(LOAD_CMD_NORMAL, nsIWebNavigation::LOAD_FLAGS_REPLACE_HISTORY),
LOAD_HISTORY = MAKE_LOAD_TYPE(LOAD_CMD_HISTORY, nsIWebNavigation::LOAD_FLAGS_NONE),
LOAD_RELOAD_NORMAL = MAKE_LOAD_TYPE(LOAD_CMD_RELOAD, nsIWebNavigation::LOAD_FLAGS_NONE),
LOAD_RELOAD_BYPASS_CACHE = MAKE_LOAD_TYPE(LOAD_CMD_RELOAD, nsIWebNavigation::LOAD_FLAGS_BYPASS_CACHE),
LOAD_RELOAD_BYPASS_PROXY = MAKE_LOAD_TYPE(LOAD_CMD_RELOAD, nsIWebNavigation::LOAD_FLAGS_BYPASS_PROXY),
LOAD_RELOAD_BYPASS_PROXY_AND_CACHE = MAKE_LOAD_TYPE(LOAD_CMD_RELOAD, nsIWebNavigation::LOAD_FLAGS_BYPASS_CACHE | nsIWebNavigation::LOAD_FLAGS_BYPASS_PROXY),
LOAD_LINK = MAKE_LOAD_TYPE(LOAD_CMD_NORMAL, nsIWebNavigation::LOAD_FLAGS_IS_LINK),
LOAD_REFRESH = MAKE_LOAD_TYPE(LOAD_CMD_NORMAL, nsIWebNavigation::LOAD_FLAGS_IS_REFRESH),
LOAD_RELOAD_CHARSET_CHANGE = MAKE_LOAD_TYPE(LOAD_CMD_RELOAD, nsIWebNavigation::LOAD_FLAGS_CHARSET_CHANGE),
LOAD_BYPASS_HISTORY = MAKE_LOAD_TYPE(LOAD_CMD_NORMAL, nsIWebNavigation::LOAD_FLAGS_BYPASS_HISTORY)
};
/* internally used ViewMode types */
enum ViewMode {
viewNormal = 0x0,
viewSource = 0x1
};
//*****************************************************************************
//*** nsRefreshTimer
//*****************************************************************************
class nsRefreshTimer : public nsITimerCallback
{
public:
nsRefreshTimer();
NS_DECL_ISUPPORTS
// nsITimerCallback interface
NS_IMETHOD_(void) Notify(nsITimer * timer);
nsCOMPtr<nsIDocShell> mDocShell;
nsCOMPtr<nsIURI> mURI;
PRBool mRepeat;
PRInt32 mDelay;
PRBool mMetaRefresh;
protected:
virtual ~nsRefreshTimer();
};
//*****************************************************************************
//*** nsDocShell
//*****************************************************************************
class nsDocShell : public nsIDocShell,
public nsIDocShellTreeItem,
public nsIDocShellTreeNode,
public nsIDocShellHistory,
public nsIWebNavigation,
public nsIBaseWindow,
public nsIScrollable,
public nsITextScroll,
public nsIDocCharset,
public nsIContentViewerContainer,
public nsIInterfaceRequestor,
public nsIScriptGlobalObjectOwner,
public nsIRefreshURI,
public nsIWebProgressListener,
public nsSupportsWeakReference
{
friend class nsDSURIContentListener;
public:
// Object Management
nsDocShell();
NS_DECL_ISUPPORTS
NS_DECL_NSIDOCSHELL
NS_DECL_NSIDOCSHELLTREEITEM
NS_DECL_NSIDOCSHELLTREENODE
NS_DECL_NSIDOCSHELLHISTORY
NS_DECL_NSIWEBNAVIGATION
NS_DECL_NSIBASEWINDOW
NS_DECL_NSISCROLLABLE
NS_DECL_NSITEXTSCROLL
NS_DECL_NSIDOCCHARSET
NS_DECL_NSIINTERFACEREQUESTOR
NS_DECL_NSISCRIPTGLOBALOBJECTOWNER
NS_DECL_NSIWEBPROGRESSLISTENER
NS_DECL_NSIREFRESHURI
NS_DECL_NSICONTENTVIEWERCONTAINER
nsresult SetLoadCookie(nsISupports * aCookie);
nsresult GetLoadCookie(nsISupports ** aResult);
nsDocShellInfoLoadType ConvertLoadTypeToDocShellLoadInfo(PRUint32 aLoadType);
PRUint32 ConvertDocShellLoadInfoToLoadType(nsDocShellInfoLoadType aDocShellLoadType);
protected:
// Object Management
virtual ~nsDocShell();
NS_IMETHOD DestroyChildren();
// Content Viewer Management
NS_IMETHOD EnsureContentViewer();
NS_IMETHOD EnsureDeviceContext();
NS_IMETHOD CreateAboutBlankContentViewer();
NS_IMETHOD CreateContentViewer(const char * aContentType,
nsIRequest * request, nsIStreamListener ** aContentHandler);
NS_IMETHOD NewContentViewerObj(const char * aContentType,
nsIRequest * request, nsILoadGroup * aLoadGroup,
nsIStreamListener ** aContentHandler, nsIContentViewer ** aViewer);
NS_IMETHOD SetupNewViewer(nsIContentViewer * aNewViewer);
NS_IMETHOD GetEldestPresContext(nsIPresContext** aPresContext);
NS_IMETHOD CreateFixupURI(const PRUnichar * aStringURI, nsIURI ** aURI);
NS_IMETHOD GetCurrentDocumentOwner(nsISupports ** aOwner);
virtual nsresult DoURILoad(nsIURI * aURI,
nsIURI * aReferrer,
nsISupports * aOwner,
nsIInputStream * aPostData,
nsIInputStream * aHeadersData);
NS_IMETHOD AddHeadersToChannel(nsIInputStream * aHeadersData,
nsIChannel * aChannel);
virtual nsresult DoChannelLoad(nsIChannel * aChannel,
nsIURILoader * aURILoader);
NS_IMETHOD ScrollIfAnchor(nsIURI * aURI, PRBool * aWasAnchor);
NS_IMETHOD OnLoadingSite(nsIChannel * aChannel);
NS_IMETHOD OnNewURI(nsIURI * aURI, nsIChannel * aChannel, PRUint32 aLoadType);
virtual void SetReferrerURI(nsIURI * aURI);
// Session History
virtual PRBool ShouldAddToSessionHistory(nsIURI * aURI);
virtual nsresult AddToSessionHistory(nsIURI * aURI, nsIChannel * aChannel,
nsISHEntry ** aNewEntry);
NS_IMETHOD LoadHistoryEntry(nsISHEntry * aEntry, PRUint32 aLoadType);
NS_IMETHOD PersistLayoutHistoryState();
NS_IMETHOD CloneAndReplace(nsISHEntry * srcEntry, PRUint32 aCloneID,
nsISHEntry * areplaceEntry, nsISHEntry ** destEntry);
nsresult GetRootSessionHistory(nsISHistory ** aReturn);
nsresult GetHttpChannel(nsIChannel * aChannel, nsIHttpChannel ** aReturn);
// Global History
NS_IMETHOD ShouldAddToGlobalHistory(nsIURI * aURI, PRBool * aShouldAdd);
NS_IMETHOD AddToGlobalHistory(nsIURI * aURI);
NS_IMETHOD UpdateCurrentGlobalHistory();
// Helper Routines
NS_IMETHOD GetPromptAndStringBundle(nsIPrompt ** aPrompt,
nsIStringBundle ** aStringBundle);
NS_IMETHOD GetChildOffset(nsIDOMNode * aChild, nsIDOMNode * aParent,
PRInt32 * aOffset);
NS_IMETHOD GetRootScrollableView(nsIScrollableView ** aOutScrollView);
NS_IMETHOD EnsureContentListener();
NS_IMETHOD EnsureScriptEnvironment();
NS_IMETHOD EnsureFind();
static inline PRUint32
PRTimeToSeconds(PRTime t_usec)
{
PRTime usec_per_sec;
PRUint32 t_sec;
LL_I2L(usec_per_sec, PR_USEC_PER_SEC);
LL_DIV(t_usec, t_usec, usec_per_sec);
LL_L2I(t_sec, t_usec);
return t_sec;
}
virtual nsresult FindTarget(const PRUnichar *aTargetName,
PRBool *aIsNewWindow,
nsIDocShell **aResult);
PRBool IsFrame();
//
// Helper method that is called when a new document (including any
// sub-documents - ie. frames) has been completely loaded.
//
virtual nsresult EndPageLoad(nsIWebProgress * aProgress,
nsIChannel * aChannel,
nsresult aResult);
protected:
nsString mName;
nsString mTitle;
nsVoidArray mChildren;
nsCOMPtr<nsISupportsArray> mRefreshURIList;
nsDSURIContentListener * mContentListener;
nsRect mBounds; // Dimensions of the docshell
nsCOMPtr<nsIContentViewer> mContentViewer;
nsCOMPtr<nsIDocumentCharsetInfo> mDocumentCharsetInfo;
nsCOMPtr<nsIDeviceContext> mDeviceContext;
nsCOMPtr<nsIDocumentLoader>mDocLoader;
nsCOMPtr<nsIWidget> mParentWidget;
nsCOMPtr<nsIPref> mPrefs;
nsCOMPtr<nsIURI> mCurrentURI;
nsCOMPtr<nsIURI> mReferrerURI;
nsCOMPtr<nsIScriptGlobalObject> mScriptGlobal;
nsCOMPtr<nsIScriptContext> mScriptContext;
nsCOMPtr<nsISHistory> mSessionHistory;
nsCOMPtr<nsIGlobalHistory> mGlobalHistory;
nsCOMPtr<nsISupports> mLoadCookie; // the load cookie associated with the window context.
nsCOMPtr<nsIURIFixup> mURIFixup;
nsCOMPtr<nsIWebBrowserFind> mFind;
PRInt32 mMarginWidth;
PRInt32 mMarginHeight;
PRInt32 mItemType;
nsPoint mCurrentScrollbarPref; // this document only
nsPoint mDefaultScrollbarPref; // persistent across doc loads
PRUint32 mLoadType;
PRBool mAllowSubframes;
PRPackedBool mAllowPlugins;
PRPackedBool mAllowJavascript;
PRPackedBool mAllowMetaRedirects;
PRPackedBool mAllowImages;
PRPackedBool mFocusDocFirst;
PRPackedBool mHasFocus;
PRPackedBool mCreatingDocument; // (should be) debugging only
PRUint32 mAppType;
PRInt32 mChildOffset; // Offset in the parent's child list.
PRUint32 mBusyFlags;
// Reference to the SHEntry for this docshell until the page is destroyed.
// Somebody give me better name
nsCOMPtr<nsISHEntry> mOSHE;
// Reference to the SHEntry for this docshell until the page is loaded
// Somebody give me better name
nsCOMPtr<nsISHEntry> mLSHE;
PRBool mFiredUnloadEvent;
// this flag is for bug #21358. a docshell may load many urls
// which don't result in new documents being created (i.e. a new content viewer)
// we want to make sure we don't call a on load event more than once for a given
// content viewer.
PRBool mEODForCurrentDocument;
PRBool mURIResultedInDocument;
// used to keep track of whether user click links should be handle by us
// or immediately kicked out to an external application. mscott: eventually
// i'm going to try to fold this up into the uriloader where it belongs but i haven't
// figured out how to do that yet.
PRBool mUseExternalProtocolHandler;
// Disallow popping up new windows with target=
PRBool mDisallowPopupWindows;
// Validate window targets to prevent frameset spoofing
PRBool mValidateOrigin;
PRBool mIsBeingDestroyed;
// WEAK REFERENCES BELOW HERE.
// Note these are intentionally not addrefd. Doing so will create a cycle.
// For that reasons don't use nsCOMPtr.
nsIDocShellTreeItem * mParent; // Weak Reference
nsIDocShellTreeOwner * mTreeOwner; // Weak Reference
nsIChromeEventHandler * mChromeEventHandler; //Weak Reference
};
#endif /* nsDocShell_h__ */
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