add code for hooking up stop button,r=putterman 12016

mailnews/base/public/nsIMsgWindow.idl

@@ -22,7 +22,8 @@
 #include "nsIMsgFolder.idl"
 
 interface nsITransactionManager;
-
+interface nsIWebShell;
+interface nsIDOMWindow;
 /*
  *  This interface can be used to set data specific to a window.
  */
@@ -35,4 +36,8 @@ interface nsIMsgWindow : nsISupports {
     attribute nsITransactionManager transactionManager;
 	attribute nsIMessageView messageView;
 	attribute nsIMsgFolder openFolder;
+	attribute nsIWebShell rootWebShell;
+	
+	void SetDOMWindow(in nsIDOMWindow window);
+	void StopUrls();
 };

mailnews/base/resources/content/msgMail3PaneWindow.js

@@ -231,7 +231,7 @@ function InitMsgWindow()
 {
 	msgWindow.statusFeedback = statusFeedback;
 	msgWindow.messageView = messageView;
-
+	msgWindow.SetDOMWindow(window);
 }
 
 function AddDataSources()
@@ -388,9 +388,7 @@ function ClearMessagePane()
 
 function StopUrls()
 {
-	dump("sorry, stop doesn't work yet.\n");
-	var windowData = folderDataSource.QueryInterface(Components.interfaces.nsIMsgWindowData);
-
+	msgWindow.StopUrls();
 }
 
 

mailnews/base/src/nsMsgWindow.cpp

@@ -17,15 +17,16 @@
  */
 
 #include "nsMsgWindow.h"
-
-
+#include "nsIScriptGlobalObject.h"
+#include "nsIDOMElement.h"
+#include "nsIDOMWindow.h"
 
 NS_IMPL_ISUPPORTS(nsMsgWindow, nsCOMTypeInfo<nsIMsgWindow>::GetIID())
 
 nsMsgWindow::nsMsgWindow()
 {
 	NS_INIT_REFCNT();
-
+	mRootWebShell = nsnull;
 }
 
 nsMsgWindow::~nsMsgWindow()
@@ -102,3 +103,49 @@ NS_IMETHODIMP nsMsgWindow::SetOpenFolder(nsIMsgFolder * aOpenFolder)
 	mOpenFolder = aOpenFolder;
 	return NS_OK;
 }
+
+NS_IMETHODIMP nsMsgWindow::GetRootWebShell(nsIWebShell * *aWebShell)
+{
+	if(!aWebShell)
+		return NS_ERROR_NULL_POINTER;
+
+	*aWebShell = mRootWebShell;
+	NS_IF_ADDREF(*aWebShell);
+	return NS_OK;
+
+}
+
+NS_IMETHODIMP nsMsgWindow::SetRootWebShell(nsIWebShell * aWebShell)
+{
+	mRootWebShell = aWebShell;
+	return NS_OK;
+}
+
+NS_IMETHODIMP nsMsgWindow::SetDOMWindow(nsIDOMWindow *aWindow)
+{
+	if (!aWindow)
+		return NS_ERROR_NULL_POINTER;
+
+	nsresult rv = NS_OK;
+
+	nsCOMPtr<nsIScriptGlobalObject>
+		globalScript(do_QueryInterface(aWindow));
+	nsCOMPtr<nsIWebShell> webshell, rootWebshell;
+	if (globalScript)
+		globalScript->GetWebShell(getter_AddRefs(webshell));
+	if (webshell)
+	{
+		webshell->GetRootWebShell(mRootWebShell);
+		nsIWebShell *root = mRootWebShell;
+		NS_RELEASE(root); // don't hold reference
+	}
+	return rv;
+}
+
+NS_IMETHODIMP nsMsgWindow::StopUrls()
+{
+	if (mRootWebShell)
+		return mRootWebShell->Stop();
+	return NS_ERROR_NULL_POINTER;
+}
+

mailnews/base/src/nsMsgWindow.h

@@ -24,6 +24,7 @@
 #include "nsITransactionManager.h"
 #include "nsIMessageView.h"
 #include "nsIMsgFolder.h"
+#include "nsIWebShell.h"
 
 #include "nsCOMPtr.h"
 
@@ -43,6 +44,8 @@ protected:
 	nsCOMPtr<nsITransactionManager> mTransactionManager;
 	nsCOMPtr<nsIMessageView> mMessageView;
 	nsCOMPtr<nsIMsgFolder> mOpenFolder;
+	// let's not make this a strong ref - we don't own it.
+	nsIWebShell *mRootWebShell;
 };