var noun_type_gmCommand = {
  _name: "GM command name",
 
  // Returns all GM commands available for the current page.
  getCommands: function(){
    var commands= {};
    var menuitems = jQuery(window.document)
                         .find('#userscript-commands-sb > menupopup > menuitem')
                         .get();
    for (var i=0; i<menuitems.length; i++){
      var cmd = menuitems[i];
      commands[cmd.getAttribute('label')] = cmd;
    }
    return commands;
  },
 
  suggest: function( text, html ) {
    
    var suggestions  = [];
    var commands = this.getCommands();
 
    for ( var cmd in commands ) {
      if ( cmd.match(text, "i") ){
          suggestions.push( CmdUtils.makeSugg(cmd, cmd, commands[cmd]) );
      }
    }
 
    // Return the list of input objects
    return suggestions;
  }
}
    
CmdUtils.CreateCommand({
  name:        "gm",
  author:      "esquifit",
  takes:       {"GM command": noun_type_gmCommand },
  description: "Issue Greasemonkey userscript commands from the Ubiquity command line",
  icon:        "chrome://greasemonkey/content/icon_small.png",
 
  execute: function( {data} ) {
      data._commandFunc();
  },
 
  preview: function( pblock, {text} ) {
    
      pblock.innerHTML  = 'Testing...';
      var commands = noun_type_gmCommand.getCommands();

      // Combine e4x with trimpath templates.
      // In trimpath templates, "{...}" is replaced with "[%...%]" 
      // to avoid conflict with e4x variables
      var list = <div>
                   {text}
                    <br/>
                    <hr/>
                    <h4><i>Commands available in this page:</i></h4>
                    <hr/>
                    [%if commands != null %]
                       <ul>
                          [%for c in commands %]
                              <li>
                                 <a name="$[%c_index%]">$[%c_index%]</a>
                              </li>
                          [%/for%]
                       </ul>
                    [%/if%]
                 </div>.toXMLString()
                         .replace(/\[%(.*?)%\]/g,"{$1}");
            
      pblock.innerHTML = CmdUtils.renderTemplate(list, {commands: commands} ) ; 
      
      // add click listener to links
      var ul = jQuery(pblock).find('li>a')
                             .bind('click', function(ev){
                                      // clicking closes the preview and executes the action
                                      context.chromeWindow.gUbiquity.closeWindow();
                                      commands[jQuery(this).attr('name')]._commandFunc();
                                   });
  }
   
});