gecko-dev/docshell/base/nsWebShell.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):
*
*/
#ifndef webshell____h
#define webshell____h
#include "nsIWebShellServices.h"
#include "nsIWebShell.h"
#include "nsILinkHandler.h"
#include "nsIClipboardCommands.h"
#include "nsDocShell.h"
class nsIController;
typedef enum {
eCharsetReloadInit,
eCharsetReloadRequested,
eCharsetReloadStopOrigional
} eCharsetReloadState;
class nsWebShell : public nsDocShell,
public nsIWebShell,
public nsIWebShellContainer,
public nsIWebShellServices,
public nsILinkHandler,
public nsIClipboardCommands
{
public:
nsWebShell();
virtual ~nsWebShell();
NS_DECL_AND_IMPL_ZEROING_OPERATOR_NEW
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIINTERFACEREQUESTOR
NS_DECL_NSICLIPBOARDCOMMANDS
NS_DECL_NSIWEBSHELLSERVICES
NS_IMETHOD SetupNewViewer(nsIContentViewer* aViewer);
// nsIContentViewerContainer
NS_IMETHOD Embed(nsIContentViewer* aDocViewer,
const char* aCommand,
nsISupports* aExtraInfo);
// nsIWebShell
NS_IMETHOD SetContainer(nsIWebShellContainer* aContainer);
NS_IMETHOD GetContainer(nsIWebShellContainer*& aResult);
NS_IMETHOD GetTopLevelWindow(nsIWebShellContainer** aWebShellWindow);
NS_IMETHOD GetRootWebShell(nsIWebShell*& aResult);
/*NS_IMETHOD SetParent(nsIWebShell* aParent);
NS_IMETHOD GetParent(nsIWebShell*& aParent);*/
NS_IMETHOD GetReferrer(nsIURI **aReferrer);
// Document load api's
NS_IMETHOD GetDocumentLoader(nsIDocumentLoader*& aResult);
void SetReferrer(const PRUnichar* aReferrer);
// History api's
NS_IMETHOD GoTo(PRInt32 aHistoryIndex);
NS_IMETHOD GetHistoryLength(PRInt32& aResult);
NS_IMETHOD GetHistoryIndex(PRInt32& aResult);
NS_IMETHOD GetURL(PRInt32 aHistoryIndex, const PRUnichar** aURLResult);
// nsIWebShellContainer
NS_IMETHOD SetHistoryState(nsISupports* aLayoutHistoryState);
NS_IMETHOD FireUnloadEvent(void);
// nsILinkHandler
NS_IMETHOD OnLinkClick(nsIContent* aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream = 0,
nsIInputStream* aHeadersDataStream = 0);
NS_IMETHOD OnOverLink(nsIContent* aContent,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec);
NS_IMETHOD GetLinkState(const char* aLinkURI, nsLinkState& aState);
NS_IMETHOD FindNext(const PRUnichar * aSearchStr, PRBool aMatchCase,
PRBool aSearchDown, PRBool &aIsFound);
// nsIBaseWindow
NS_IMETHOD SetPositionAndSize(PRInt32 x, PRInt32 y, PRInt32 cx,
PRInt32 cy, PRBool fRepaint);
NS_IMETHOD GetPositionAndSize(PRInt32* x, PRInt32* y,
PRInt32* cx, PRInt32* cy);
NS_IMETHOD Create();
NS_IMETHOD Destroy();
// nsWebShell
nsIEventQueue* GetEventQueue(void);
void HandleLinkClickEvent(nsIContent *aContent,
nsLinkVerb aVerb,
const PRUnichar* aURLSpec,
const PRUnichar* aTargetSpec,
nsIInputStream* aPostDataStream = 0,
nsIInputStream* aHeadersDataStream = 0);
static nsEventStatus PR_CALLBACK HandleEvent(nsGUIEvent *aEvent);
NS_IMETHOD SetURL(const PRUnichar* aURL);
protected:
void GetRootWebShellEvenIfChrome(nsIWebShell** aResult);
void InitFrameData();
// helpers for executing commands
virtual nsresult GetControllerForCommand ( const nsAReadableString & inCommand, nsIController** outController );
virtual nsresult IsCommandEnabled ( const nsAReadableString & inCommand, PRBool* outEnabled );
virtual nsresult DoCommand ( const nsAReadableString & inCommand );
//
// 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* channel,
nsresult aStatus);
nsIEventQueue* mThreadEventQueue;
nsIWebShellContainer* mContainer;
nsIDocumentLoader* mDocLoader;
PRBool mFiredUnloadEvent;
nsRect mBounds;
eCharsetReloadState mCharsetReloadState;
nsISupports* mHistoryState; // Weak reference. Session history owns this.
nsresult FireUnloadForChildren();
nsresult CreateViewer(nsIRequest* request,
const char* aContentType,
const char* aCommand,
nsIStreamListener** aResult);
#ifdef DEBUG
private:
// We're counting the number of |nsWebShells| to help find leaks
static unsigned long gNumberOfWebShells;
#endif /* DEBUG */
};
#endif /* webshell____h */