mshtml: Switch nsWebBrowset to editing mode in exec_editmod.

dlls/mshtml/nsiface.idl

@@ -108,6 +108,7 @@ typedef nsISupports nsIDOMHTMLFormElement;
 typedef nsISupports nsIDOMHTMLOptionsCollection;
 typedef nsISupports nsIDOMHTMLCollection;
 typedef nsISupports nsIDOMRange;
+typedef nsISupports nsIEditor;
 
 [
     object,
@@ -1157,6 +1158,22 @@ interface nsIWindowWatcher : nsISupports
     nsresult SetActiveWindow(nsIDOMWindow *aActiveWindow);
 }
 
+[
+    object,
+    uuid(d39fd2b4-3978-45d2-a4be-ba448171b61b)
+]
+interface nsIEditingSession : nsISupports
+{
+    nsresult GetEditorStatus(PRUint32 *aEditorStatus);
+    nsresult MakeWindowEditable(nsIDOMWindow *window, const char *aEditorType,
+                                PRBool doAfterUriLoad);
+    nsresult WindowIsEditable(nsIDOMWindow *window, PRBool *_retval);
+    nsresult GetEditorForWindow(nsIDOMWindow *window, nsIEditor **_retval);
+    nsresult SetupEditorOnWindow(nsIDOMWindow *window);
+    nsresult TearDownEditorOnWindow(nsIDOMWindow *window);
+    nsresult SetEditorOnControllers(nsIDOMWindow *aWindow, nsIEditor *aEditor);
+}
+
 /*
  * NOTE:
  * This is a private Wine interface that is implemented by our implementation

dlls/mshtml/olecmd.c

@@ -247,11 +247,59 @@ static HRESULT exec_browsemode(HTMLDocument *This)
     return S_OK;
 }
 
+static void setup_ns_editing(NSContainer *This)
+{
+    nsIInterfaceRequestor *iface_req;
+    nsIEditingSession *editing_session = NULL;
+    nsIURIContentListener *listener = NULL;
+    nsIDOMWindow *dom_window = NULL;
+    nsresult nsres;
+
+    nsres = nsIWebBrowser_QueryInterface(This->webbrowser,
+            &IID_nsIInterfaceRequestor, (void**)&iface_req);
+    if(NS_FAILED(nsres)) {
+        ERR("Could not get nsIInterfaceRequestor: %08lx\n", nsres);
+        return;
+    }
+
+    nsres = nsIInterfaceRequestor_GetInterface(iface_req, &IID_nsIEditingSession,
+                                               (void**)&editing_session);
+    nsIInterfaceRequestor_Release(iface_req);
+    if(NS_FAILED(nsres)) {
+        ERR("Could not get nsIEditingSession: %08lx\n", nsres);
+        return;
+    }
+
+    nsres = nsIWebBrowser_GetContentDOMWindow(This->webbrowser, &dom_window);
+    nsIDOMWindow_Release(dom_window);
+    if(NS_FAILED(nsres)) {
+        ERR("Could not get content DOM window: %08lx\n", nsres);
+        nsIEditingSession_Release(editing_session);
+        return;
+    }
+
+    nsres = nsIEditingSession_MakeWindowEditable(editing_session, dom_window, NULL, FALSE);
+    nsIEditingSession_Release(editing_session);
+    if(NS_FAILED(nsres)) {
+        ERR("MakeWindowEditable failed: %08lx\n", nsres);
+        return;
+    }
+
+    /* MakeWindowEditable changes WebBrowser's parent URI content listener.
+     * It seams to be a bug in Gecko. To workaround it we set our content
+     * listener again and Gecko's one as its parent.
+     */
+    nsIWebBrowser_GetParentURIContentListener(This->webbrowser, &listener);
+    nsIURIContentListener_SetParentContentListener(NSURICL(This), listener);
+    nsIURIContentListener_Release(listener);
+    nsIWebBrowser_SetParentURIContentListener(This->webbrowser, NSURICL(This));
+}
+
 static HRESULT exec_editmode(HTMLDocument *This)
 {
     HRESULT hres;
 
-    FIXME("(%p)\n", This);
+    TRACE("(%p)\n", This);
 
     This->usermode = EDITMODE;
 
@@ -306,6 +354,9 @@ static HRESULT exec_editmode(HTMLDocument *This)
         }
     }
 
+    if(This->nscontainer)
+        setup_ns_editing(This->nscontainer);
+
     return S_OK;
 }