Framed out the nsHTMLDocShell implementation. Setup to build a library.

docshell/html/makefile.win

@@ -22,27 +22,19 @@
 DEPTH=..\..
 MODULE=docshell_html
 
-MAKE_OBJ_TYPE=DLL
-DLLNAME=htmldshl
-DLL=.\$(OBJDIR)\$(DLLNAME).dll
-
 XPIDLSRCS=						\
 		.\nsCHTMLDocShell.idl	\
 		.\nsIHTMLDocShell.idl	\
 		$(NULL)
 
-#CPP_OBJS=											\
-#		.\$(OBJDIR)\nsCNativeAppImpl.obj			\
-#		.\$(OBJDIR)\nsCNativeAppModule.obj	\
-#		$(NULL)
+LIBRARY_NAME=htmldocshell_s
 
-#LLIBS=                              \
-#        $(DIST)\lib\xpcom.lib       \
-#        $(LIBNSPR)  
+CPP_OBJS=											\
+		.\$(OBJDIR)\nsHTMLDocShell.obj			\
+		$(NULL)
 
 include <$(DEPTH)\config\rules.mak>
 include <$(DEPTH)\config\config.mak>
 
-#install:: $(DLL)
-#	$(MAKE_INSTALL) .\$(OBJDIR)\$(DLLNAME).dll $(DIST)\bin\components
-#	$(MAKE_INSTALL) .\$(OBJDIR)\$(DLLNAME).lib $(DIST)\lib
+libs:: $(LIBRARY)
+	$(MAKE_INSTALL) $(LIBRARY) $(DIST)\lib

docshell/html/nsHTMLDocShell.cpp

@@ -0,0 +1,794 @@
+/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * 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>
+ */
+
+//#include "nsIComponentManager.h"
+
+#include "nsHTMLDocShell.h"
+
+//*****************************************************************************
+//***    nsHTMLDocShell: Object Management
+//*****************************************************************************
+
+nsHTMLDocShell::nsHTMLDocShell()
+{
+	NS_INIT_REFCNT();
+}
+
+nsHTMLDocShell::~nsHTMLDocShell()
+{
+}
+
+NS_IMETHODIMP nsHTMLDocShell::Create(nsISupports* aOuter, const nsIID& aIID, 
+	void** ppv)
+{
+	NS_ENSURE_ARG_POINTER(ppv);
+	NS_ENSURE_NO_AGGREGATION(aOuter);
+
+	nsHTMLDocShell* docShell = new  nsHTMLDocShell();
+	NS_ENSURE(docShell, NS_ERROR_OUT_OF_MEMORY);
+
+	NS_ADDREF(docShell);
+	nsresult rv = docShell->QueryInterface(aIID, ppv);
+	NS_RELEASE(docShell);  
+	return rv;
+}
+
+//*****************************************************************************
+// nsHTMLDocShell::nsISupports
+//*****************************************************************************   
+
+NS_IMPL_ISUPPORTS7(nsHTMLDocShell, nsIDocShell, nsIHTMLDocShell, 
+   nsIDocShellEdit, nsIDocShellFile, nsIGenericWindow, nsIScrollable, 
+   nsITextScroll)
+
+//*****************************************************************************
+// nsHTMLDocShell::nsIDocShell
+//*****************************************************************************   
+
+NS_IMETHODIMP nsHTMLDocShell::LoadURI(const PRUnichar* uri)
+{
+   NS_ENSURE_ARG(uri);
+   //XXX First Check
+	/*
+	Loads a given URI.  This will give priority to loading the requested URI
+	in the object implementing	this interface.  If it can't be loaded here
+	however, the URL dispatcher will go through its normal process of content
+	loading.
+
+	@param uri - The URI to load.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::LoadURIVia(const PRUnichar* uri, 
+   PRUint32 adapterBinding)
+{
+   NS_ENSURE_ARG(uri);
+   //XXX First Check
+	/*
+	Loads a given URI through the specified adapter.  This will give priority
+	to loading the requested URI in the object implementing this interface.
+	If it can't be loaded here	however, the URL dispatcher will go through its
+	normal process of content loading.
+
+	@param uri - The URI to load.
+	@param adapterBinding - The local IP address of the adapter to bind to.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetDocument(nsIDOMDocument** document)
+{
+   NS_ENSURE_ARG_POINTER(document);
+   //XXX First Check
+	/*
+	The current document that is loaded in the DocShell.  When setting this it
+	will will simulate the normal load process.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetDocument(nsIDOMDocument* document)
+{
+   //XXX First Check
+	/*
+	The current document that is loaded in the DocShell.  When setting this it
+	will will simulate the normal load process.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetName(PRUnichar** name)
+{
+   NS_ENSURE_ARG_POINTER(name);
+   //XXX First Check
+	/*
+	name of the DocShell
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetName(const PRUnichar* name)
+{
+   //XXX First Check
+	/*
+	name of the DocShell
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetPresContext(nsIPresContext** presContext)
+{
+   NS_ENSURE_ARG_POINTER(presContext);
+   //XXX First Check
+	/*
+	Presentation context
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetPresContext(nsIPresContext* presContext)
+{
+   //XXX First Check
+   /*
+   Presentation context
+   */
+   return NS_ERROR_FAILURE;
+}
+
+
+NS_IMETHODIMP nsHTMLDocShell::GetParent(nsIDocShell** parent)
+{
+   NS_ENSURE_ARG_POINTER(parent);
+   //XXX First Check
+	/*
+	Parent DocShell
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetParent(nsIDocShell* parent)
+{
+   //XXX First Check
+	/*
+	Parent DocShell
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetPrefs(nsIPref** prefs)
+{
+   NS_ENSURE_ARG_POINTER(prefs);
+   //XXX First Check
+	/*
+	Prefs to use for the DocShell.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetPrefs(nsIPref* prefs)
+{
+   //XXX First Check
+	/*
+	Prefs to use for the DocShell.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetRootDocShell(nsIDocShell** rootDocShell)
+{
+   NS_ENSURE_ARG_POINTER(rootDocShell);
+   //XXX First Check
+	/*
+	Returns the root DocShell instance.  Since DocShells can be nested
+	(when frames are present for example) this instance represents the 
+	outermost DocShell.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+//*****************************************************************************
+// nsHTMLDocShell::nsIHTMLDocShell
+//*****************************************************************************   
+
+NS_IMETHODIMP nsHTMLDocShell::ScrollToNode(nsIDOMNode* node)
+{
+   NS_ENSURE_ARG(node);
+   //XXX First Check
+    	/*
+	Scrolls to a given DOM content node. 
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetAllowPlugins(PRBool* allowPlugins)
+{
+   NS_ENSURE_ARG_POINTER(allowPlugins);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetAllowPlugins(PRBool allowPlugins)
+{
+   //XXX First Check
+	/** if true, plugins are allowed within the doc shell.  default = true */
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetMarginWidth(PRInt32* marginWidth)
+{
+   NS_ENSURE_ARG_POINTER(marginWidth);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetMarginWidth(PRInt32 marginWidth)
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetMarginHeight(PRInt32* marginHeight)
+{
+   NS_ENSURE_ARG_POINTER(marginHeight);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetMarginHeight(PRInt32 marginHeight)
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetIsFrame(PRBool* isFrame)
+{
+   NS_ENSURE_ARG_POINTER(isFrame);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetIsFrame(PRBool isFrame)
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetDefaultCharacterSet(PRUnichar** defaultCharacterSet)
+{
+   NS_ENSURE_ARG_POINTER(defaultCharacterSet);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetDefaultCharacterSet(const PRUnichar* defaultCharacterSet)
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetForceCharacterSet(PRUnichar** forceCharacterSet)
+{
+   NS_ENSURE_ARG_POINTER(forceCharacterSet);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetForceCharacterSet(const PRUnichar* forceCharacterSet)
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+//*****************************************************************************
+// nsHTMLDocShell::nsIDocShellEdit
+//*****************************************************************************   
+
+NS_IMETHODIMP nsHTMLDocShell::Search()
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetSearchable(PRBool* searchable)
+{
+   NS_ENSURE_ARG_POINTER(searchable);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::ClearSelection()
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SelectAll()
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::CopySelection()
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetCopyable(PRBool* copyable)
+{
+   NS_ENSURE_ARG_POINTER(copyable);
+   
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::CutSelection()
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetCutable(PRBool* cutable)
+{
+   NS_ENSURE_ARG_POINTER(cutable);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::Paste()
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetPasteable(PRBool* pasteable)
+{
+   NS_ENSURE_ARG_POINTER(pasteable);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+//*****************************************************************************
+// nsHTMLDocShell::nsIDocShellFile
+//*****************************************************************************   
+
+NS_IMETHODIMP nsHTMLDocShell::Save()
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+} 
+
+NS_IMETHODIMP nsHTMLDocShell::GetSaveable(PRBool* saveable)
+{
+   NS_ENSURE_ARG_POINTER(saveable);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+} 
+
+NS_IMETHODIMP nsHTMLDocShell::Print()
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+} 
+
+NS_IMETHODIMP nsHTMLDocShell::GetPrintable(PRBool* printable)
+{
+   NS_ENSURE_ARG_POINTER(printable);
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+} 
+
+//*****************************************************************************
+// nsHTMLDocShell::nsIGenericWindow
+//*****************************************************************************   
+
+NS_IMETHODIMP nsHTMLDocShell::InitWindow(nativeWindow parentNativeWindow,
+   nsIWidget* parentWidget, PRInt32 x, PRInt32 y, PRInt32 cx, PRInt32 cy)   
+{
+   //XXX First Check
+	/*
+	Allows a client to initialize an object implementing this interface with
+	the usually required window setup information.
+
+	@param parentNativeWindow - This allows a system to pass in the parenting
+		window as a native reference rather than relying on the calling
+		application to have created the parent window as an nsIWidget.  This 
+		value will be ignored (should be nsnull) if an nsIWidget is passed in to
+		the parentWidget parameter.  One of the two parameters however must be
+		passed.
+
+	@param parentWidget - This allows a system to pass in the parenting widget.
+		This allows some objects to optimize themselves and rely on the view
+		system for event flow rather than creating numerous native windows.  If
+		one of these is not available, nsnull should be passed and a 
+		valid native window should be passed to the parentNativeWindow parameter.
+
+	@param x - This is the x co-ordinate relative to the parent to place the
+		window.
+
+	@param y - This is the y co-ordinate relative to the parent to place the 
+		window.
+
+	@param cx - This is the width	for the window to be.
+
+	@param cy - This is the height for the window to be.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::Create()
+{
+   //XXX First Check
+	/*
+	Tells the window that intialization and setup is complete.  When this is
+	called the window can actually create itself based on the setup
+	information handed to it.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::Destroy()
+{
+   //XXX First Check
+	/*
+	Tell the window that it can destroy itself.  This allows re-using the same
+	object without re-doing a lot of setup.  This is not a required call 
+	before a release.
+
+	@return	NS_OK - Everything destroyed properly.
+				NS_ERROR_NOT_IMPLEMENTED - State preservation is not supported.
+					Release the interface and create a new object.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetPosition(PRInt32 x, PRInt32 y)
+{
+   //XXX First Check
+	/*
+	Sets the current x and y coordinates of the control.  This is relative to
+	the parent window.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetPosition(PRInt32* x, PRInt32* y)
+{
+   NS_ENSURE_ARG_POINTER(x && y);
+   //XXX First Check
+	/*
+	Gets the current x and y coordinates of the control.  This is relatie to the
+	parent window.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetSize(PRInt32 cx, PRInt32 cy, PRBool fRepaint)
+{
+   //XXX First Check
+	/*
+	Sets the width and height of the control.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetSize(PRInt32* cx, PRInt32* cy)
+{
+   NS_ENSURE_ARG_POINTER(cx && cy);
+
+   //XXX First Check
+	/*
+	Gets the width and height of the control.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetPositionAndSize(PRInt32 x, PRInt32 y, PRInt32 cx,
+   PRInt32 cy, PRBool fRepaint)
+{
+   //XXX First Check
+	/*
+	Convenience function combining the SetPosition and SetSize into one call.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SizeToContent()
+{
+   //XXX First Check
+	/**
+	* Tell the window to shrink-to-fit its contents
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::Repaint(PRBool fForce)
+{
+   //XXX First Check
+	/** 
+	 * Tell the window to repaint itself
+	 * @param aForce - if true, repaint immediately
+	 *                 if false, the window may defer repainting as it sees fit.
+	 */
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetParentWidget(nsIWidget** parentWidget)
+{
+   NS_ENSURE_ARG_POINTER(parentWidget);
+
+   //XXX First Check
+	/*			  
+	This is the parenting widget for the control.  This may be null if only the
+	native window was handed in for the parent during initialization.  If this
+	is returned, it should refer to the same object as parentNativeWindow.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetParentWidget(nsIWidget* parentWidget)
+{
+   //XXX First Check
+	/*			  
+	This is the parenting widget for the control.  This may be null if only the
+	native window was handed in for the parent during initialization.  If this
+	is returned, it should refer to the same object as parentNativeWindow.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+
+NS_IMETHODIMP nsHTMLDocShell::GetParentNativeWindow(nativeWindow* parentNativeWindow)
+{
+   NS_ENSURE_ARG_POINTER(parentNativeWindow);
+   //XXX First Check
+	/*
+	This is the native window parent of the control.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetParentNativeWindow(nativeWindow parentNativeWindow)
+{
+   //XXX First Check
+	/*
+	This is the native window parent of the control.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetVisibility(PRBool* visibility)
+{
+   NS_ENSURE_ARG_POINTER(visibility);
+
+   //XXX First Check
+	/*
+	Attribute controls the visibility of the object behind this interface.
+	Setting this attribute to false will hide the control.  Setting it to 
+	true will show it.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetVisibility(PRBool visibility)
+{
+   //XXX First Check
+	/*
+	Attribute controls the visibility of the object behind this interface.
+	Setting this attribute to false will hide the control.  Setting it to 
+	true will show it.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetMainWidget(nsIWidget** mainWidget)
+{
+   NS_ENSURE_ARG_POINTER(mainWidget);
+   //XXX First Check
+	/*
+	Allows you to find out what the widget is of a given object.  Depending
+	on the object, this may return the parent widget in which this object
+	lives if it has not had to create it's own widget.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetFocus()
+{
+   //XXX First Check
+	/**
+	* Give the window focus.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::RemoveFocus()
+{
+   //XXX First Check
+	/**
+	* Remove focus from the window
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetTitle(PRUnichar** title)
+{
+   NS_ENSURE_ARG_POINTER(title);
+
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetTitle(const PRUnichar* title)
+{
+   //XXX First Check
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetZoom(float* zoom)
+{
+   NS_ENSURE_ARG_POINTER(zoom);
+
+   //XXX First Check
+	/**
+	* Set/Get the document scale factor
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetZoom(float zoom)
+{
+   //XXX First Check
+	/**
+	* Set/Get the document scale factor
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+//*****************************************************************************
+// nsHTMLDocShell::nsIScrollable
+//*****************************************************************************   
+
+NS_IMETHODIMP nsHTMLDocShell::GetCurScrollPos(PRInt32 scrollOrientation, 
+   PRInt32* curPos)
+{
+   NS_ENSURE_ARG_POINTER(curPos);
+
+   //XXX First Check
+	/*
+	Retrieves or Sets the current thumb position to the curPos passed in for the
+	scrolling orientation passed in.  curPos should be between minPos and maxPos.
+
+	@return	NS_OK - Setting or Getting completed successfully.
+				NS_ERROR_INVALID_ARG - returned when curPos is not within the
+					minPos and maxPos.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetCurScrollPos(PRInt32 scrollOrientation, 
+   PRInt32 curPos)
+{
+   //XXX First Check
+	/*
+	Retrieves or Sets the current thumb position to the curPos passed in for the
+	scrolling orientation passed in.  curPos should be between minPos and maxPos.
+
+	@return	NS_OK - Setting or Getting completed successfully.
+				NS_ERROR_INVALID_ARG - returned when curPos is not within the
+					minPos and maxPos.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetScrollRange(PRInt32 scrollOrientation,
+   PRInt32* minPos, PRInt32* maxPos)
+{
+   NS_ENSURE_ARG_POINTER(minPos && maxPos);
+   //XXX First Check
+	/*
+	Retrieves or Sets the valid ranges for the thumb.  When maxPos is set to 
+	something less than the current thumb position, curPos is set = to maxPos.
+
+	@return	NS_OK - Setting or Getting completed successfully.
+				NS_ERROR_INVALID_ARG - returned when curPos is not within the
+					minPos and maxPos.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetScrollRange(PRInt32 scrollOrientation,
+   PRInt32 minPos, PRInt32 maxPos)
+{
+   //XXX First Check
+	/*
+	Retrieves or Sets the valid ranges for the thumb.  When maxPos is set to 
+	something less than the current thumb position, curPos is set = to maxPos.
+
+	@return	NS_OK - Setting or Getting completed successfully.
+				NS_ERROR_INVALID_ARG - returned when curPos is not within the
+					minPos and maxPos.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetScrollbarPreferences(PRInt32 scrollOrientation,
+   PRInt32* scrollbarPref)
+{
+   NS_ENSURE_ARG_POINTER(scrollbarPref);
+   //XXX First Check
+	/*
+	Retrieves of Set the preferences for the scroll bar.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::SetScrollbarPreferences(PRInt32 scrollOrientation,
+   PRInt32 scrollbarPref)
+{
+   //XXX First Check
+	/*
+	Retrieves of Set the preferences for the scroll bar.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::GetScrollbarVisibility(PRBool* verticalVisible,
+   PRBool* horizontalVisible)
+{
+   //XXX First Check
+	/*
+	Get information about whether the vertical and horizontal scrollbars are
+	currently visible.
+	*/
+   return NS_ERROR_FAILURE;
+}
+
+//*****************************************************************************
+// nsHTMLDocShell::nsITextScroll
+//*****************************************************************************   
+
+NS_IMETHODIMP nsHTMLDocShell::ScrollByLines(PRInt32 numLines)
+{
+   //XXX First Check
+  /**
+   * Scroll the view up or down by aNumLines lines. positive
+   * values move down in the view. Prevents scrolling off the
+   * end of the view.
+   * @param numLines number of lines to scroll the view by
+   */
+   return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP nsHTMLDocShell::ScrollByPages(PRInt32 numPages)
+{
+   //XXX First Check
+	/**
+   * Scroll the view up or down by numPages pages. a page
+   * is considered to be the amount displayed by the clip view.
+   * positive values move down in the view. Prevents scrolling
+   * off the end of the view.
+   * @param numPages number of pages to scroll the view by
+   */
+   return NS_ERROR_FAILURE;
+}

docshell/html/nsHTMLDocShell.h

@@ -0,0 +1,52 @@
+/* -*- Mode: IDL; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * 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 nsHTMLDocShell_h__
+#define nsHTMLDocShell_h__
+
+#include "nsCHTMLDocShell.h"
+
+class nsHTMLDocShell : public nsIDocShell, public nsIHTMLDocShell, 
+   public nsIDocShellEdit, public nsIDocShellFile, public nsIGenericWindow,
+   public nsIScrollable, public nsITextScroll
+{
+public:
+   NS_DECL_ISUPPORTS
+
+   NS_DECL_NSIDOCSHELL
+   NS_DECL_NSIHTMLDOCSHELL
+   NS_DECL_NSIDOCSHELLEDIT
+   NS_DECL_NSIDOCSHELLFILE
+   NS_DECL_NSIGENERICWINDOW
+   NS_DECL_NSISCROLLABLE
+   NS_DECL_NSITEXTSCROLL
+
+   static NS_METHOD Create(nsISupports* aOuter, const nsIID& aIID, void** ppv);
+
+protected:
+   nsHTMLDocShell();
+   virtual ~nsHTMLDocShell();
+
+protected:
+};
+
+#endif /* nsHTMLDocShell_h__ */