fix some callers of editorshell's documentModified and documentEditable to use editor (bug 171798, r=cmanske, sr=alecf)

editor/ui/composer/content/ComposerCommands.js

@@ -661,8 +661,9 @@ var nsSaveCommand =
     //  when you first open a remote file.
     try {
       var docUrl = GetDocumentUrl();
-      return window.editorShell && window.editorShell.documentEditable &&
-        (window.editorShell.documentModified || window.gHTMLSourceChanged ||
+      var editor = GetCurrentEditor();
+      return editor && editor.isDocumentEditable &&
+        (editor.documentModified || window.gHTMLSourceChanged ||
          IsUrlAboutBlank(docUrl) || GetScheme(docUrl) != "file");
     } catch (e) {return false;}
   },
@@ -781,7 +782,8 @@ var nsPublishCommand =
       //  when you first open any local file.
       try {
         var docUrl = GetDocumentUrl();
-        return window.editorShell.documentModified || window.gHTMLSourceChanged
+        var editor = GetCurrentEditor();
+        return editor.documentModified || window.gHTMLSourceChanged
                || IsUrlAboutBlank(docUrl) || GetScheme(docUrl) == "file";
       } catch (e) {return false;}
     }
@@ -2132,8 +2134,9 @@ var nsRevertCommand =
 {
   isCommandEnabled: function(aCommand, dummy)
   {
-    return (window.editorShell && window.editorShell.documentEditable &&
-            window.editorShell.documentModified &&
+    var editor = GetCurrentEditor();
+    return (editor && editor.isDocumentEditable &&
+            editor.documentModified &&
             !IsUrlAboutBlank(GetDocumentUrl()));
   },
 
@@ -2225,9 +2228,10 @@ var nsPreviewCommand =
 {
   isCommandEnabled: function(aCommand, dummy)
   {
-    return (window.editorShell && window.editorShell.documentEditable && 
+    var editor = GetCurrentEditor();
+    return (editor && editor.isDocumentEditable && 
             isHTMLEditor() && 
-            (DocumentHasBeenSaved() || window.editorShell.documentModified));
+            (DocumentHasBeenSaved() || editor.documentModified));
   },
 
   getCommandStateParams: function(aCommand, aParams, aRefCon) {},
@@ -2282,8 +2286,9 @@ var nsSendPageCommand =
 {
   isCommandEnabled: function(aCommand, dummy)
   {
-    return (window.editorShell != null && window.editorShell.documentEditable &&
-            (DocumentHasBeenSaved() || window.editorShell.documentModified));
+    var editor = GetCurrentEditor();
+    return (editor && editor.isDocumentEditable &&
+            (DocumentHasBeenSaved() || editor.documentModified));
   },
 
   getCommandStateParams: function(aCommand, aParams, aRefCon) {},
@@ -2471,7 +2476,7 @@ var nsValidateCommand =
   {
     // If the document hasn't been modified,
     // then just validate the current url.
-    if (editorShell.documentModified || gHTMLSourceChanged)
+    if (GetCurrentEditor().documentModified || gHTMLSourceChanged)
     {
       if (!CheckAndSaveDocument("cmd_validate", false))
         return;