content/base/test/test_treewalker_nextsibling.xml

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/content/base/test/test_treewalker_nextsibling.xml	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,97 @@
     1.4 +<?xml-stylesheet type="text/css" href="/tests/SimpleTest/test.css" ?>
     1.5 +<root>
     1.6 +  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js" xmlns="http://www.w3.org/1999/xhtml"/>
     1.7 +
     1.8 +  <body xmlns="http://www.w3.org/1999/xhtml">
     1.9 +    <p id="display"></p>
    1.10 +    <div id="content" style="display: none;"></div>
    1.11 +    <textarea id="test" style="height: 300px; max-width: 800px; overflow: scroll;"
    1.12 +              rows="10" cols="160" readonly="readonly"/>
    1.13 +  </body>
    1.14 +
    1.15 +<pre id="test" xmlns="http://www.w3.org/1999/xhtml">
    1.16 +<script class="testbody" type="text/javascript" xmlns="http://www.w3.org/1999/xhtml">
    1.17 +<![CDATA[
    1.18 +var passedNodes = new WeakMap();
    1.19 +function setPass(aNode) {
    1.20 +  passedNodes.set(aNode, true);
    1.21 +}
    1.22 +
    1.23 +SimpleTest.waitForExplicitFinish();
    1.24 +
    1.25 +window.addEventListener("load", function() {
    1.26 +  const nsIDOMNodeFilter = SpecialPowers.Ci.nsIDOMNodeFilter;
    1.27 +  var walker = document.createTreeWalker(
    1.28 +    document,
    1.29 +    nsIDOMNodeFilter.SHOW_TEXT | nsIDOMNodeFilter.SHOW_DOCUMENT,
    1.30 +    null
    1.31 +  );
    1.32 +  setPass(walker.firstChild());
    1.33 +  while (walker.nextSibling()) {
    1.34 +    setPass(walker.currentNode);
    1.35 +  }
    1.36 +
    1.37 +/*
    1.38 +From http://www.w3.org/TR/2000/REC-DOM-Level-2-Traversal-Range-20001113/traversal.html#Traversal-TreeWalker
    1.39 +Omitting nodes from the logical view of a subtree can result in a structure that
    1.40 +is substantially different from the same subtree in the complete, unfiltered
    1.41 +document. Nodes that are siblings in the TreeWalker view may be children of
    1.42 +different, widely separated nodes in the original view. For instance, consider a
    1.43 +NodeFilter that skips all nodes except for Text nodes and the root node of a
    1.44 +document. In the logical view that results, all text nodes will be siblings and
    1.45 +appear as direct children of the root node, no matter how deeply nested the
    1.46 +structure of the original document.
    1.47 +*/
    1.48 +
    1.49 +  walker2 = document.createTreeWalker(document, nsIDOMNodeFilter.SHOW_TEXT, null);
    1.50 +  while (walker2.nextNode()) {
    1.51 +    var cNode = walker2.currentNode;
    1.52 +    ok(passedNodes.get(cNode), "Every text node should appear: " + walker2.currentNode.nodeValue);
    1.53 +    walker.currentNode = cNode;
    1.54 +    var parent = walker.parentNode();
    1.55 +    is(parent, document, "parent of text node should be document");
    1.56 +
    1.57 +    // Check nextSibling's previousSibling.
    1.58 +    walker.currentNode = cNode;
    1.59 +    if (walker.nextSibling()) {
    1.60 +      is(cNode, walker.previousSibling(), "nextSibling.previousSibling should be consistent");
    1.61 +    }
    1.62 +
    1.63 +    // Check previousSibling's nextSibling.
    1.64 +    walker.currentNode = cNode;
    1.65 +    if (walker.previousSibling()) {
    1.66 +      is(cNode, walker.nextSibling(), "previousSibling.nextSibling should be consistent");
    1.67 +    }
    1.68 +  }
    1.69 +  SimpleTest.finish();
    1.70 +}, true);
    1.71 +]]>
    1.72 +</script>
    1.73 +</pre>
    1.74 +
    1.75 +  <test>
    1.76 +    zero
    1.77 +    <one>
    1.78 +      one-A
    1.79 +      <two>
    1.80 +        two-A
    1.81 +      </two>
    1.82 +      <two>
    1.83 +        two-B
    1.84 +      </two>
    1.85 +      one-B
    1.86 +    </one>
    1.87 +    <one>
    1.88 +      one-C
    1.89 +      <two>
    1.90 +        two-D
    1.91 +      </two>
    1.92 +      <two>
    1.93 +        two-E
    1.94 +      </two>
    1.95 +      one-F
    1.96 +    </one>
    1.97 +    zero
    1.98 +  </test>
    1.99 +</root>
   1.100 +

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