gecko/accessible/tests/mochitest/test_nsIAccessibleHyperLink.xul

<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin" type="text/css"?>
<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css"
                 type="text/css"?>

<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
        title="test for nsIAccessibleHyperLink interface on XUL:label elements">

  <script type="application/javascript" 
          src="chrome://mochikit/content/MochiKit/packed.js"></script>
  <script type="application/javascript"
          src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js" />
  <script type="application/javascript">
  <![CDATA[
    function testThis(aID, aAcc, aRole, aAnchorCount, aAnchorName, aURI,
                      aStartIndex, aEndIndex, aValid, aSelectedBefore,
                      aSelectedAfter)
    {
      is(aAcc.finalRole, aRole, "Wrong role for ID " + aID + "!");
      is(aAcc.anchorCount, aAnchorCount, "Wrong number of anchors for ID " 
         + aID + "!");
      is(aAcc.getAnchor(0).name, aAnchorName, "Wrong name for ID " + aID + "!");
      is(aAcc.getURI(0).spec, aURI, "URI wrong for ID " + aID + "!");
      is(aAcc.startIndex, aStartIndex, "Wrong startIndex value for ID " + aID 
         + "!");
      is(aAcc.endIndex, aEndIndex, "Wrong endIndex value for ID " + aID + "!");
      is(aAcc.valid, aValid, "Wrong valid state for ID " + aID + "!");      

      is(aAcc.selected, aSelectedBefore, "Wrong focused state before focus for "
         + aID + "!");
      document.getElementById(aID).focus();
      is(aAcc.selected, aSelectedAfter, "Wrong selected state after focus for "
         + aID + "!");
    }

    function testStates(aID, aAcc, aState, aExtraState, aUndesiredState)
    {
      var state = {}, extraState = {};
      aAcc.getFinalState(state, extraState);
      is(state.value & aState, aState, "Wrong state bits for " + aID + "!");
      is(extraState.value & aExtraState, aExtraState, 
         "Wrong extra state bits for " + aID + "!");
      if (aUndesiredState != 0)
        is(state.value & aUndesiredState, 0, "Bits should not be set for "
           + aID +"!");
    }

    function doTest()
    {
      // Mapping needed state flags for easier handling.
      const state_focusable = 
            Components.interfaces.nsIAccessibleStates.STATE_FOCUSABLE;
      const state_focused = 
            Components.interfaces.nsIAccessibleStates.STATE_FOCUSED;
      const state_selectable = 
            Components.interfaces.nsIAccessibleStates.STATE_SELECTABLE;
      const state_linked = 
            Components.interfaces.nsIAccessibleStates.STATE_LINKED;
      const state_traversed = 
            Components.interfaces.nsIAccessibleStates.STATE_TRAVERSED;

      const ext_state_multi_line = 
            Components.interfaces.nsIAccessibleStates.EXT_STATE_MULTI_LINE;
      const ext_state_horizontal = 
            Components.interfaces.nsIAccessibleStates.EXT_STATE_HORIZONTAL;
      const ext_state_required = 
            Components.interfaces.nsIAccessibleStates.STATE_REQUIRED;
      const ext_state_invalid = 
            Components.interfaces.nsIAccessibleStates.STATE_INVALID;

      // Activate accessibility.
      var accRetrieval = Components.classes["@mozilla.org/accessibleRetrieval;1"].
                    getService(Components.interfaces.nsIAccessibleRetrieval);

      var linkLabelElement = document.getElementById("linkedLabel");
      var linkedLabelAcc;
      try {
        linkedLabelAcc = accRetrieval.getAccessibleFor(linkLabelElement).
          QueryInterface(Components.interfaces.nsIAccessibleHyperLink);
      } catch(e) {
        ok(linkedLabelAcc, "no interface for linked label!");
      }
      testThis("linkedLabel", linkedLabelAcc,
               Components.interfaces.nsIAccessibleRole.ROLE_LINK, 1,
               "Mozilla Foundation home", "http://www.mozilla.org/", 1, 2, true,
               false, true);
      testStates("linkedLabel", linkedLabelAcc,
                 (state_focusable | state_linked),
                 (ext_state_horizontal), 0);

      var labelElementWithValue = document.getElementById("linkLabelWithValue");
      var labelWithValueAcc;
      try {
        labelWithValueAcc = accRetrieval.getAccessibleFor(labelElementWithValue).
          QueryInterface(Components.interfaces.nsIAccessibleHyperLink);
      } catch(e) {
        ok(labelWithValueAcc, "no interface for linked label with value!");
      }
      testThis("linkLabelWithValue", labelWithValueAcc,
               Components.interfaces.nsIAccessibleRole.ROLE_LINK, 1,
               "Mozilla Foundation", "http://www.mozilla.org/", 2, 3, true,
               false, true);
      testStates("linkLabelWithValue", labelWithValueAcc,
                 (state_focusable | state_linked),
                 (ext_state_horizontal), 0);

      var NormalLabelElement = document.getElementById("normalLabel");
      var normalLabelAcc;
      try {
        normalLabelAcc = accRetrieval.getAccessibleFor(NormalLabelElement);
      } catch(e) {
      }
      ok(normalLabelAcc, "no accessible for normalLabel!");
      if (normalLabelAcc) {
        is(normalLabelAcc.finalRole,
           Components.interfaces.nsIAccessibleRole.ROLE_LABEL,
           "Wrong role!");
        is(normalLabelAcc.name, "This label should not be a link",
           "Wrong name for normal label!");
    
        var stateNormal = {}, extraStateNormal = {};
        normalLabelAcc.getFinalState(stateNormal, extraStateNormal);
        undesiredState = (state_focusable | state_linked);
        is(stateNormal.value & undesiredState, 0, "Wrong state bits for normal label!");
      }

      SimpleTest.finish();
    }

    SimpleTest.waitForExplicitFinish();
    addLoadEvent(doTest);
  ]]>
  </script>

  <body xmlns="http://www.w3.org/1999/xhtml">
    <a target="_blank"
       href="https://bugzilla.mozilla.org/show_bug.cgi?id=421066"
       title="Implement Mochitests for the nsIAccessibleHyperLink interface on XUL:label elements">
      Mozilla Bug 421066
    </a>
    <p id="display"></p>
    <div id="content" style="display: none">
    </div>
    <pre id="test">
    </pre>
  </body>

  <label id="linkedLabel" class="text-link" href="http://www.mozilla.org/">
    Mozilla Foundation home</label>
  <label id="linkLabelWithValue" value="Mozilla Foundation" class="text-link"
   href="http://www.mozilla.org/" />
  <label id="normalLabel" value="This label should not be a link" />
</window>