app/src/main/webapp/roller-ui/authoring/editors/xinha-1.5.1/plugins/ListOperations/ListOperations.js

/** 
 ListOperations for Xinha
 ===============================================================================
 
 Provides some additional features for working with lists in Xinha.
 
 At present the only feature is
 
 {{{
   xinha_config.ListOperations.tabToIndent = [true | 'atstart' | false];
 }}}
 
 which causes pressig tab ina list to indent (or shift-tab to detent) to 
 a new list level
 
 Note that the HTML structure of this list may be, for example
 {{{
   <ul>
     <li>Item 1</li>
     <ul>
       <li>Item 1.1</li>
     </ul>
     <li>Item 2</li>
   </ul>
 }}}
 
See ticket:1614
*/

ListOperations._pluginInfo = {
  name          : "ListOperations",
  version       : "1.0",
  developer     : "The Xinha Core Developer Team",
  developer_url : "http://trac.xinha.org/ticket/1614",
  sponsor       : "",
  sponsor_url   : "",
  license       : "htmlArea"
}

Xinha.Config.prototype.ListOperations = 
{ 
  // One of true, false, 'atstart'
  //  where 'atstart' will indent only at the start of a list item (can be a bit wonky if there is a leading space)
  tabToIndent: true 
}

function ListOperations(editor)
{
  this.editor = editor;
}

ListOperations.prototype.onKeyPress = function(ev)
{
  var editor = this.editor;
 
  // Not enabled, drop out
  if(!editor.config.ListOperations.tabToIndent) return false;
  
  if( ev.keyCode !== 9 ) { return false; }

  var sel = editor.getSelection(),
      rng = editor.createRange(sel),
      containing_list = editor._getFirstAncestorAndWhy(sel, ["ol", "ul"]);

  if( containing_list[0] === null ) {
      return false;
  }

  containing_list_type = ["ol", "ul"][containing_list[1]];
  containing_list = containing_list[0];

  if(!editor.config.ListOperations.tabToIndent == 'atstart')
  {
    if( rng.startOffset !== 0 ) {
      return false;
    }
  }

  Xinha._stopEvent(ev);

  if( ev.shiftKey ) {
    if( editor._getFirstAncestorForNodeAndWhy(containing_list, ["ol", "ul"])[0] !== null ) {
      editor.execCommand("outdent");
    }
  } else {
    editor.execCommand("indent");
  }

  return true;
}