-
controllers
-
Type:
nsIControllers
-
A controllers list attached to the element. The controllers are used to respond to commands. The document's command dispatcher will locate controllers to handle a command by using the focused element's list.
Example
<window id="controller-example" title="Controller Example" onload="init();"
xmlns="https://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script>
function init()
{
var list = document.getElementById("theList");
var listController = {
supportsCommand : function(cmd){ return (cmd == "cmd_delete"); },
isCommandEnabled : function(cmd){
if (cmd == "cmd_delete") return (list.selectedItem != null);
return false;
},
doCommand : function(cmd){
list.removeItemAt(list.selectedIndex);
},
onEvent : function(evt){ }
};
list.controllers.appendController(listController);
}
</script>
<listbox id="theList">
<listitem label="Ocean"/>
<listitem label="Desert"/>
<listitem label="Jungle"/>
<listitem label="Swamp"/>
</listbox>
</window>