test_selection.html

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<html>

<head>

  <title>Text Range selection tests</title>

  <link rel="stylesheet" type="text/css"

        href="chrome://mochikit/content/tests/SimpleTest/test.css" />

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

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          src="../common.js"></script>

  <script type="application/javascript"

          src="../text.js"></script>

  <script type="application/javascript"

          src="../layout.js"></script>

  <script type="application/javascript">

    function doTest() {

      var sel = window.getSelection();

      var p = getNode("p1");

      var a = getNode("p2_a");

      var range = document.createRange();

      sel.addRange(range);

      // the accessible is contained by the range

      range.selectNode(p);

      var a11yranges = getAccessible(document, [nsIAccessibleText]).selectionRanges;

      var a11yrange = a11yranges.queryElementAt(0, nsIAccessibleTextRange);

      testTextRange(a11yrange, "selection range #1", document, 3, document, 4);

      ok(a11yrange.crop(getAccessible(a)), "Range failed to crop #1.");

      testTextRange(a11yrange, "cropped range #1", a, 0, a, 5);

      // the range is contained by the accessible

      range.selectNode(a);

      a11yranges = getAccessible(document, [nsIAccessibleText]).selectionRanges;

      a11yrange = a11yranges.queryElementAt(0, nsIAccessibleTextRange);

      testTextRange(a11yrange, "selection range #2", p, 5, p, 6);

      ok(a11yrange.crop(getAccessible(p)), "Range failed to crop #2.");

      testTextRange(a11yrange, "cropped range #2", p, 5, p, 6);

      // the range starts before the accessible and ends inside it

      range.setStart(p, 0);

      range.setEndAfter(a.firstChild, 4);

      a11yranges = getAccessible(document, [nsIAccessibleText]).selectionRanges;

      a11yrange = a11yranges.queryElementAt(0, nsIAccessibleTextRange);

      testTextRange(a11yrange, "selection range #3", p, 0, a, 4);

      ok(a11yrange.crop(getAccessible(a)), "Range failed to crop #3.");

      testTextRange(a11yrange, "cropped range #3", a, 0, a, 4);

      // the range starts inside the accessible and ends after it

      range.setStart(a.firstChild, 1);

      range.setEndAfter(p);

      a11yranges = getAccessible(document, [nsIAccessibleText]).selectionRanges;

      a11yrange = a11yranges.queryElementAt(0, nsIAccessibleTextRange);

      testTextRange(a11yrange, "selection range #4", a, 1, document, 4);

      ok(a11yrange.crop(getAccessible(a)), "Range failed to crop #4.");

      testTextRange(a11yrange, "cropped range #4", a, 1, a, 5);

      // the range ends before the accessible

      range.setStart(p.firstChild, 0);

      range.setEnd(p.firstChild, 4);

      a11yranges = getAccessible(document, [nsIAccessibleText]).selectionRanges;

      a11yrange = a11yranges.queryElementAt(0, nsIAccessibleTextRange);

      testTextRange(a11yrange, "selection range #5", p, 0, p, 4);

      ok(!a11yrange.crop(getAccessible(a)), "Crop #5 succeeded while it shouldn't");

      // the range starts after the accessible

      range.setStart(p.lastChild, 0);

      range.setEnd(p.lastChild, 4);

      a11yranges = getAccessible(document, [nsIAccessibleText]).selectionRanges;

      a11yrange = a11yranges.queryElementAt(0, nsIAccessibleTextRange);

      testTextRange(a11yrange, "selection range #6", p, 6, p, 10);

      ok(!a11yrange.crop(getAccessible(a)), "Crop #6 succeeded while it shouldn't");

      // crop a range by a table

      range.selectNode(getNode("c2"));

      a11yranges = getAccessible(document, [nsIAccessibleText]).selectionRanges;

      a11yrange = a11yranges.queryElementAt(0, nsIAccessibleTextRange);

      testTextRange(a11yrange, "selection range #7", document, 4, document, 5);

      ok(a11yrange.crop(getAccessible("table")), "Range failed to crop #7.");

      testTextRange(a11yrange, "cropped range #7", "table", 0, "table", 1);

      // test compare points for selection with start in nested node

      range.setStart(a.firstChild, 2);

      range.setEnd(p.lastChild, 3);

      a11yranges = getAccessible(document, [nsIAccessibleText]).selectionRanges;

      a11yrange = a11yranges.queryElementAt(0, nsIAccessibleTextRange);

      var res = a11yrange.compareEndPoints(EndPoint_Start, a11yrange, EndPoint_End);

      is(res, -1, "start must be lesser than end");

      res = a11yrange.compareEndPoints(EndPoint_End, a11yrange, EndPoint_Start);

      is(res, 1, "end must be greater than start");

      // Crop a range to its next sibling.

      range.selectNode(getNode("c3p1").firstChild);

      a11yranges = getAccessible(document, [nsIAccessibleText]).selectionRanges;

      a11yrange = a11yranges.queryElementAt(0, nsIAccessibleTextRange);

      testTextRange(a11yrange, "selection range #8", "c3p1", 0, "c3p1", 1);

      ok(!a11yrange.crop(getAccessible("c3p2")), "Crop #8 succeeded but shouldn't have.");

      // Crop a range to its previous sibling.

      range.selectNode(getNode("c3p2").firstChild);

      a11yranges = getAccessible(document, [nsIAccessibleText]).selectionRanges;

      a11yrange = a11yranges.queryElementAt(0, nsIAccessibleTextRange);

      testTextRange(a11yrange, "selection range #9", "c3p2", 0, "c3p2", 1);

      ok(!a11yrange.crop(getAccessible("c3p1")), "Crop #9 succeeded but shouldn't have.");

      SimpleTest.finish();

    SimpleTest.waitForExplicitFinish();

    addA11yLoadEvent(doTest);

  </script>

</head>

<body>

  <a target="_blank"

     title="Implement IAccessible2_3::selectionRanges"

     href="https://bugzilla.mozilla.org/show_bug.cgi?id=1233118">Bug 1233118</a>

  <p id="display"></p>

  <div id="content" style="display: none"></div>

  <pre id="test">

  </pre>

  <p id="p1">text <a id="p2_a" href="www">link<img id="p2_img", src="../moz.png"></a> text</p>

  <div id="c2">start<table id="table"><tr><td>cell</td></tr></table>end</div>

  <div id="c3"><p id="c3p1">a</p><p id="c3p2">b</p></div>

</body>

</html>