pjs/webshell/public/nsIWebShell.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef nsIWebShell_h___
#define nsIWebShell_h___
#include "nsweb.h"
#include "nsIWidget.h"
#include "nsIParser.h"
#include "nsIScrollableView.h"
#include "nsIContentViewerContainer.h"
#include "nsIChannel.h"
#include "nsIScrollableView.h"
#include "nsISessionHistory.h"
#include "nsIUrlDispatcher.h"
class nsIDOMElement;
class nsIDOMWindow;
class nsIFactory;
//class nsIPostData;
class nsIStreamObserver;
class nsIDocumentLoader;
class nsIDocumentLoaderObserver;
class nsIWebShell;
class nsIWebShellContainer;
class nsIPref;
class nsIContent;
class nsIURIContentListener;
class nsIDOMDocument;
class nsIChromeEventHandler;
// Interface ID for nsIWebShell
#define NS_IWEB_SHELL_IID \
{ 0xa6cf9058, 0x15b3, 0x11d2,{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
// Interface ID for nsIWebShellContainer
#define NS_IWEB_SHELL_CONTAINER_IID \
{ 0xa6cf905a, 0x15b3, 0x11d2,{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
// Class ID for an implementation of nsIWebShell
#define NS_WEB_SHELL_CID \
{ 0xa6cf9059, 0x15b3, 0x11d2,{0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
//----------------------------------------------------------------------
typedef enum {
nsLoadURL,
nsLoadHistory,
nsLoadLink,
nsLoadRefresh
} nsLoadType;
typedef enum {
nsWebShellChrome,
nsWebShellContent
} nsWebShellType;
// Container for web shell's
class nsIWebShellContainer : public nsISupports {
public:
static const nsIID& GetIID() { static nsIID iid = NS_IWEB_SHELL_CONTAINER_IID; return iid; }
// History control
NS_IMETHOD WillLoadURL(nsIWebShell* aShell,
const PRUnichar* aURL,
nsLoadType aReason) = 0;
NS_IMETHOD BeginLoadURL(nsIWebShell* aShell,
const PRUnichar* aURL) = 0;
NS_IMETHOD ProgressLoadURL(nsIWebShell* aShell,
const PRUnichar* aURL,
PRInt32 aProgress,
PRInt32 aProgressMax) = 0;
NS_IMETHOD EndLoadURL(nsIWebShell* aShell,
const PRUnichar* aURL,
nsresult aStatus) = 0;
//instances
// XXX kipp sez: I don't think that this method should be a part of
// this interface.
NS_IMETHOD NewWebShell(PRUint32 aChromeMask,
PRBool aVisible,
nsIWebShell *&aNewWebShell) = 0;
NS_IMETHOD FindWebShellWithName(const PRUnichar* aName,
nsIWebShell*& aResult) = 0;
NS_IMETHOD ContentShellAdded(nsIWebShell* aChildShell, nsIContent* frameNode) = 0;
NS_IMETHOD CreatePopup(nsIDOMElement* aElement, nsIDOMElement* aPopupContent,
PRInt32 aXPos, PRInt32 aYPos,
const nsString& aPopupType, const nsString& anAnchorAlignment,
const nsString& aPopupAlignment,
nsIDOMWindow* aWindow, nsIDOMWindow** outPopup) = 0;
/**
* Notify the WebShellContainer that a contained webshell is
* offering focus (for example if it finshed tabbing through its
* contents). The container can choose to set focus to themselves
* or ignore the message and let the contained keep focus
*/
NS_IMETHOD FocusAvailable(nsIWebShell* aFocusedWebShell, PRBool& aFocusTaken) = 0;
// NS_IMETHOD SetHistoryIndex(PRInt32 aIndex, PRInt32 aMaxIndex) = 0;
// Link traversing control
};
// Return value from WillLoadURL
#define NS_WEB_SHELL_CANCEL_URL_LOAD 0xC0E70000
//----------------------------------------------------------------------
/**
* The web shell is a container for implementations of nsIContentViewer.
* It is a content-viewer-container and also knows how to delegate certain
* behavior to an nsIWebShellContainer.
*
* Web shells can be arranged in a tree.
*
* Web shells are also nsIWebShellContainer's because they can contain
* other web shells.
*/
class nsIWebShell : public nsIContentViewerContainer {
public:
static const nsIID& GetIID() { static nsIID iid = NS_IWEB_SHELL_IID; return iid; }
/**
* Initialization function for a WebShell instance. This method provides
* information needed by the WebShell to embed itself inside of a native
* window provided by the caller. It is assumed that this function will be
* called only once.
*/
NS_IMETHOD Init(nsNativeWidget aNativeParent,
PRInt32 x, PRInt32 y, PRInt32 w, PRInt32 h,
nsScrollPreference aScrolling = nsScrollPreference_kAuto,
PRBool aAllowPlugins = PR_TRUE,
PRBool aIsSunkenBorder = PR_FALSE) = 0;
NS_IMETHOD RemoveFocus() = 0;
/**
* Set the nsIWebShellContainer for the WebShell.
*/
NS_IMETHOD SetContainer(nsIWebShellContainer* aContainer) = 0;
/**
* Return the current nsIWebShellContainer.
*/
NS_IMETHOD GetContainer(nsIWebShellContainer*& aResult) = 0;
/**
* Returns the top level window (this would be the containing window
* the same object that implements nsIWebShellContainer, nsIWebShellWindow,
* and nsIBrowserWindow).
*/
NS_IMETHOD GetTopLevelWindow(nsIWebShellContainer** aTopLevelWindow) = 0;
/**
* Set the DocLoaderObserver which receives all notifications from URLs
* loaded by the document.
*/
NS_IMETHOD SetDocLoaderObserver(nsIDocumentLoaderObserver* anObserver) = 0;
/**
* Return the current nsIDocLoadeObserver
*/
NS_IMETHOD GetDocLoaderObserver(nsIDocumentLoaderObserver** aResult) = 0;
/**
* Set the nsIPref used to get/set preference values...
*/
NS_IMETHOD SetPrefs(nsIPref* aPrefs) = 0;
/**
* Return the current nsIPref interface.
*/
NS_IMETHOD GetPrefs(nsIPref*& aPrefs) = 0;
/**
* Return the root WebShell instance. Since WebShells can be nested
* (when frames are present for example) this instance represents the
* outermost WebShell.
*/
NS_IMETHOD GetRootWebShell(nsIWebShell*& aResult) = 0;
/**
* Set the parent WebShell.
*/
NS_IMETHOD SetParent(nsIWebShell* aParent) = 0;
/**
* Return the parent WebShell.
*/
NS_IMETHOD GetParent(nsIWebShell*& aParent) = 0;
/**
* Get the referrer of the link using this WebShell.
*/
NS_IMETHOD GetReferrer(nsIURI **aReferrer) = 0;
/**
* Return the current number of WebShells which are immediate children
* of the current WebShell.
*/
NS_IMETHOD GetChildCount(PRInt32& aResult) = 0;
/**
* Add a new child WebShell.
*/
NS_IMETHOD AddChild(nsIWebShell* aChild) = 0;
/**
* Remove a child WebShell.
*/
NS_IMETHOD RemoveChild(nsIWebShell* aChild) = 0;
/**
* Return the child WebShell at the requested index.
*/
NS_IMETHOD ChildAt(PRInt32 aIndex, nsIWebShell*& aResult) = 0;
/**
* Return the name of the current WebShell.
*/
NS_IMETHOD GetName(const PRUnichar** aName) = 0;
/**
* Set the name of the current WebShell.
*/
NS_IMETHOD SetName(const PRUnichar* aName) = 0;
/**
* Return the child WebShell with the specified name.
*/
NS_IMETHOD FindChildWithName(const PRUnichar* aName,
nsIWebShell*& aResult) = 0;
/**
* Set the type of the webshell to be content or chrome.
*/
NS_IMETHOD SetWebShellType(nsWebShellType aWebShellType) = 0;
/*
* Get Chrome Event Handler
*/
NS_IMETHOD GetChromeEventHandler(nsIChromeEventHandler** aChromeEventHandler) = 0;
/*
* Get Chrome Event Handler
*/
NS_IMETHOD SetChromeEventHandler(nsIChromeEventHandler* aChromeEventHandler) = 0;
/**
* Get the content viewer for this webshell.
*/
NS_IMETHOD GetContentViewer(nsIContentViewer** aResult) = 0;
//
// Document load api's
//
/**
* Return the nsIDocumentLoader associated with the WebShell.
*/
NS_IMETHOD GetDocumentLoader(nsIDocumentLoader*& aResult) = 0;
/**
* Lets us know if the webshell document fired off a load
*/
NS_IMETHOD IsBusy(PRBool& aResult) = 0;
/**
* Load the document associated with the specified URL into the WebShell.
*/
NS_IMETHOD LoadURL(const PRUnichar *aURLSpec,
nsIInputStream* aPostDataStream=nsnull,
PRBool aModifyHistory=PR_TRUE,
nsLoadFlags aType = nsIChannel::LOAD_NORMAL,
const PRUint32 aLocalIP=0,
nsISupports * aHistoryState=nsnull,
const PRUnichar* aReferrer=nsnull) = 0;
/**
* Load the document associated with the specified URL into the WebShell.
*/
NS_IMETHOD LoadURL(const PRUnichar *aURLSpec,
const char* aCommand,
nsIInputStream* aPostDataStream=nsnull,
PRBool aModifyHistory=PR_TRUE,
nsLoadFlags aType = nsIChannel::LOAD_NORMAL,
const PRUint32 aLocalIP=0,
nsISupports * aHistoryState=nsnull,
const PRUnichar* aReferrer=nsnull) = 0;
/**
* Load the document with the specified URI into the WebShell. Assuming you have
* an nsIURI instead of a PRUnichar string, this is the preferred way to load a url.
*/
NS_IMETHOD LoadURI(nsIURI * aUri,
const char * aCommand,
nsIInputStream* aPostDataStream=nsnull,
PRBool aModifyHistory=PR_TRUE,
nsLoadFlags aType = nsIChannel::LOAD_NORMAL,
const PRUint32 aLocalIP=0,
nsISupports * aHistoryState=nsnull,
const PRUnichar* aReferrer=nsnull) = 0;
/** Set the document for this webshell.
* This simulates a URI load, in that the same notifications are sent as
* if the caller had called LoadURI.
* @param aDOMDoc
* @param aRootNode
*/
NS_IMETHOD SetDocument(nsIDOMDocument *aDOMDoc, nsIDOMElement *aRootNode) = 0;
/**
* Stop loading the current document.
*/
NS_IMETHOD Stop(void) = 0;
// XXX Temp Hacks
NS_IMETHOD StopBeforeRequestingURL() = 0;
NS_IMETHOD StopAfterURLAvailable() = 0;
/**
* Reload the current document.
*/
NS_IMETHOD Reload(nsLoadFlags aType) = 0;
//
// History api's
//
/**
* Load the previous document in the history list.
*/
NS_IMETHOD Back() = 0;
NS_IMETHOD CanBack() = 0;
NS_IMETHOD Forward() = 0;
NS_IMETHOD CanForward() = 0;
NS_IMETHOD GoTo(PRInt32 aHistoryIndex) = 0;
NS_IMETHOD GetHistoryLength(PRInt32& aResult) = 0;
NS_IMETHOD GetHistoryIndex(PRInt32& aResult) = 0;
NS_IMETHOD GetURL(PRInt32 aHistoryIndex, const PRUnichar **aURLResult) = 0;
// SetToolBar
// SetMenuBar
// SetStatusBar
NS_IMETHOD SetContentViewer(nsIContentViewer* aViewer) = 0;
NS_IMETHOD SetScrolling(PRInt32 aScrolling, PRBool aSetCurrentAndInitial = PR_TRUE) = 0;
NS_IMETHOD GetScrolling(PRInt32& aScrolling) = 0;
// XXX these are here until there a better way to pass along info to a sub doc
NS_IMETHOD GetMarginWidth (PRInt32* aWidth) = 0;
NS_IMETHOD SetMarginWidth (PRInt32 aWidth) = 0;
NS_IMETHOD GetMarginHeight(PRInt32* aWidth) = 0;
NS_IMETHOD SetMarginHeight(PRInt32 aHeight) = 0;
// XXX this will go away, replaced by a new content viewer method
NS_IMETHOD SizeToContent() = 0;
/**
* Set/Get the document scale factor
*/
NS_IMETHOD SetZoom(float aZoom) = 0;
NS_IMETHOD GetZoom(float *aZoom) = 0;
/**
* Finds text in content
*/
NS_IMETHOD FindNext(const PRUnichar * aSearchStr, PRBool aMatchCase, PRBool aSearchDown, PRBool &aIsFound) = 0;
/**
* Return the URL of the current WebShell.
*/
NS_IMETHOD GetURL(const PRUnichar** aURL) = 0;
/**
* Set the URL of the current WebShell.
*/
NS_IMETHOD SetURL(const PRUnichar* aURL) = 0;
/**
* Return the handle to SessionHistory
*/
NS_IMETHOD GetSessionHistory(nsISessionHistory *& aResult) = 0;
/**
* Set a handle to SessionHistory
*/
NS_IMETHOD SetSessionHistory(nsISessionHistory * aSHist) = 0;
/* Set & Get Session History details */
NS_IMETHOD SetIsInSHist(PRBool aIsFrame) = 0;
NS_IMETHOD GetIsInSHist(PRBool& aIsFrame) = 0;
/**
* Get and set the history state for the document.
*/
NS_IMETHOD GetHistoryState(nsISupports** aLayoutHistoryState) = 0;
NS_IMETHOD SetHistoryState(nsISupports* aLayoutHistoryState) = 0;
NS_IMETHOD SetParentURIContentListener(nsIURIContentListener * aContentListener) = 0;
NS_IMETHOD GetParentURIContentListener(nsIURIContentListener ** aContentListener) = 0;
};
extern "C" NS_WEB nsresult
NS_NewWebShellFactory(nsIFactory** aFactory);
#ifdef DETECT_WEBSHELL_LEAKS
extern "C" NS_WEB
unsigned long
NS_TotalWebShellsInExistence();
#endif
#endif /* nsIWebShell_h___ */