XUL Validator

	Sample 1 (Form Controls) \| Sample 2 (Menu)
Validator Options Run all tests Run the XUL structure tests only Run the best practices tests only Best Practices Options Include XUL structure checks Include accessibility checks

Type	Description

Basic Structure/Semantics

Well formed XML
Valid start element
Valid element
Valid attribute for a given element
Valid value for a given attribute

Best Practices

'accesskey' should be used to allow keyboard shortcut navigation
'label' should be used to determine button meaning, even if the label is hidden
'title' should be used to determine window or dialog context
'control' should be used to link labels and associated control elements
'tooltip' or 'tooltiptext' should be used to determine context
'command' should be used to simplify actions and ensure that toolbar buttons have menu item counterparts
'context' should be used to assign popup context menus instead of manually using mouse events

The validator is made up of a simple engine and a set of rules

<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  <toolbox>
    <menubar id="menubar">
      <menu id="file-menu" label="File">
        <menupopup id="file-popup">
          <menuitem label="New" oncommand="Test_doCommand();"/>
          <menuitem label="Open" oncommand="Test_doCommand();"/>
          <menuitem label="Save" oncommand="Test_doCommand();"/>
          <menuseparator/>
          <menuitem label="Exit" oncommand="Test_doCommand();"/>
        </menupopup>
      </menu>
      <menu id="edit-menu" label="Edit">
        <menupopup id="edit-popup">
          <menuitem label="Cut" oncommand="Test_doCommand();"/>
          <menuitem label="Copy" oncommand="Test_doCommand();"/>
          <menuitem label="Paste" oncommand="Test_doCommand();"/>
        </menupopup>
      </menu>
    </menubar>
  </toolbox>

</window>