UI work: Implemented table commands (part of 20973), fixed Plain Text editor, don't remove toolbars for HTML Source editmode, helped ftang with new 'Save As Charset' dialog (moved methods shared with Page Properties dialog to common file)

git-svn-id: svn://10.0.0.236/trunk@69318 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/editor/ui/dialogs/content/EdDialogCommon.js

@@ -753,3 +753,122 @@ dump(fs.URLString+" = URL string\n");
   }
   return null;
 }
+
+function GetMetaElement(name)
+{
+  if (name)
+  {
+    name = name.toLowerCase();
+    if (name != "")
+    {
+      var metaNodes = editorShell.editorDocument.getElementsByTagName("meta");
+      if (metaNodes && metaNodes.length > 0)
+      {
+        for (var i = 0; i < metaNodes.length; i++)
+        {
+          var metaNode = metaNodes.item(i);
+          if (metaNode && metaNode.getAttribute("name") == name)
+            return metaNode;
+        }
+      }
+    }
+  }
+  return null;
+}
+
+function CreateMetaElement(name)
+{
+  metaElement = editorShell.CreateElementWithDefaults("meta");
+  if (metaElement)
+    metaElement.setAttribute("name", name);
+  else
+    dump("Failed to create metaElement!\n");
+  
+  return metaElement;
+}
+
+function GetHTTPEquivMetaElement(name)
+{
+  if (name)
+  {
+    name = name.toLowerCase();
+    if (name != "")
+    {
+      var metaNodes = editorShell.editorDocument.getElementsByTagName("meta");
+      if (metaNodes && metaNodes.length > 0)
+      {
+        for (var i = 0; i < metaNodes.length; i++)
+        {
+          var metaNode = metaNodes.item(i);
+          if (metaNode && metaNode.getAttribute("http-equiv") == name)
+            return metaNode;
+        }
+      }
+    }
+  }
+  return null;
+}
+
+function CreateHTTPEquivMetaElement(name)
+{
+  metaElement = editorShell.CreateElementWithDefaults("meta");
+  if (metaElement)
+    metaElement.setAttribute("http-equiv", name);
+  else
+    dump("Failed to create httpequivMetaElement!\n");
+  
+  return metaElement;
+}
+
+function CreateHTTPEquivElement(name)
+{
+  metaElement = editorShell.CreateElementWithDefaults("meta");
+  if (metaElement)
+    metaElement.setAttribute("http-equiv", name);
+  else
+    dump("Failed to create metaElement for http-equiv!\n");
+  
+  return metaElement;
+}
+
+// Change "content" attribute on a META element,
+//   or delete entire element it if content is empty
+// This uses undoable editor transactions 
+function SetMetaElementContent(metaElement, content, insertNew)
+{
+  if (metaElement)
+  {
+    if(!content || content == "")
+    {
+      if (!insertNew)
+        editorShell.DeleteElement(metaElement);
+    }
+    else
+    {
+      if (insertNew)
+      {
+        // Don't need undo for set attribute, just for InsertElement
+        metaElement.setAttribute("content", content);
+        AppendHeadElement(metaElement);
+      }
+      else
+        editorShell.SetAttribute(metaElement, "content", content);
+    }
+  }
+}
+
+function GetHeadElement()
+{
+  var headList = editorShell.editorDocument.getElementsByTagName("head");
+  if (headList)
+    return headList.item(0);
+  
+  return null;
+}
+
+function AppendHeadElement(element)
+{
+  var head = GetHeadElement();
+  if (head)
+    head.appendChild(element);
+}