tor-browser

The Tor Browser
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test_NodeIterator_mutations_2.html (3184B)

      1 <!DOCTYPE HTML>
      2 <html>
      3 <!-- NodeIterator mutation tests, 2.
      4     Originally part of WebKit, Mochi-ified by Zack Weinberg.
      5     This file based on node-iterator-00[...].html from
      6       http://svn.webkit.org/repository/webkit/trunk/LayoutTests/traversal/
      7  -->
      8 <head>
      9 <title>DOM Traversal: NodeIterator: Mutations (2/x)</title>
     10  <script src="/tests/SimpleTest/SimpleTest.js"></script>
     11  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">
     12 </head>
     13 <p id="display"></p>
     14 <div id="content" style="display: none">
     15 </div>
     16 <pre id="test">
     17 <script class="testbody" type="text/javascript">
     18  function resetContent() {
     19    var content = $('content');
     20    content.innerHTML = ('<span id="A"><\/span><span id="B"><\/span>'
     21 		 + '<span id="C"><\/span><span id="D"><\/span>'
     22 		 + '<span id="E"><\/span><span id="F"><\/span>'
     23 		 + '<span id="G"><\/span><span id="H"><\/span>'
     24 		 + '<span id="I"><\/span>');
     25    return content;
     26  }
     27 
     28  function makeSpan(id) {
     29    var e = document.createElement('span');
     30    e.id = id;
     31    return e;
     32  }
     33 
     34  function testNodeFilter(n) {
     35    if (n.tagName == 'SPAN')
     36      return NodeFilter.FILTER_ACCEPT;
     37    return NodeFilter.FILTER_SKIP;
     38  }
     39 
     40  function checkseq(it, root, expect) {
     41    var checkIt = document.createNodeIterator(root, NodeFilter.SHOW_ELEMENT,
     42 				      testNodeFilter);
     43    var printedPointer = (it.referenceNode == undefined);
     44    var string = '';
     45    var node;
     46    while ((node = checkIt.nextNode()) != null) {
     47      if (!printedPointer && it.referenceNode == node) {
     48        printedPointer = true;
     49 var s = '[' + node.id + '] ';
     50          if (it.pointerBeforeReferenceNode)
     51            string += "* " + s;
     52          else
     53            string += s + "* ";
     54      } else {
     55        string += node.id + " ";
     56      }
     57    }
     58    is(string.slice(0, -1), expect, "sequence check");
     59  }
     60 
     61  // first a basic sanity check [node-iterator-001]
     62  (function(){
     63     var root = resetContent();
     64     var it = document.createNodeIterator(root, NodeFilter.SHOW_ELEMENT,
     65 				  testNodeFilter);
     66 
     67     checkseq(it, root, 'A B C D E F G H I');
     68     it.nextNode();
     69     checkseq(it, root, '[A] * B C D E F G H I');
     70     it.previousNode();
     71     checkseq(it, root, '* [A] B C D E F G H I');
     72     it.previousNode();
     73     checkseq(it, root, '* [A] B C D E F G H I');
     74  })();
     75 
     76  // Mutations that should not move the iterator [node-iterator-002]
     77  (function(){
     78     var root = resetContent();
     79     var it = document.createNodeIterator(root, NodeFilter.SHOW_ELEMENT,
     80 				  testNodeFilter);
     81 
     82     for (var i = 0; i < 4; i++)
     83       it.nextNode();
     84     checkseq(it, root, 'A B C [D] * E F G H I');
     85 
     86     root.removeChild($('E'));
     87     checkseq(it, root, 'A B C [D] * F G H I');
     88 
     89     var X = makeSpan('X');
     90     root.insertBefore(X, $('F'));
     91     checkseq(it, root, 'A B C [D] * X F G H I');
     92 
     93     var I = $('I');
     94     root.removeChild(I);
     95     root.insertBefore(I, X);
     96     checkseq(it, root, 'A B C [D] * I X F G H');
     97  })();
     98 
     99  // 002 complete
    100 
    101  /* Template
    102  (function(){
    103     var root = resetContent();
    104     var it = document.createNodeIterator(root, NodeFilter.SHOW_ELEMENT,
    105 				  testNodeFilter);
    106 
    107  })();
    108  */
    109 </script>
    110 </pre>
    111 </body>
    112 </html>