traversal-reject.html | Explore in Territory

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html>
<head>
<script src="../../../resources/js-test.js"></script>
</head>
<body>
<script>
description('Test TreeWalker with rejection');

var walker;
var testElement = document.createElement("div");
testElement.innerHTML='<div id="A1">  <div id="B1">  <div id="C1"></div>  </div>  <div id="B2"></div><div id="B3"></div>  </div>';

var rejectB1Filter = {
  acceptNode: function(node) {
    if (node.id == 'B1')
      return NodeFilter.FILTER_REJECT;

    return NodeFilter.FILTER_ACCEPT;
  }
}

var rejectB2Filter = {
  acceptNode: function(node) {
    if (node.id == 'B2')
      return NodeFilter.FILTER_SKIP;

    return NodeFilter.FILTER_ACCEPT;
  }
}

debug("<br>Testing nextNode")
walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, rejectB1Filter, false);
shouldBe("walker.nextNode(); walker.currentNode.id", "'A1'");
shouldBe("walker.nextNode(); walker.currentNode.id", "'B2'");
shouldBe("walker.nextNode(); walker.currentNode.id", "'B3'");

debug("<br>Testing firstChild")
walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, rejectB1Filter, false);
shouldBe("walker.firstChild(); walker.currentNode.id", "'A1'");
shouldBe("walker.firstChild(); walker.currentNode.id", "'B2'");

debug("<br>Testing nextSibling")
walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, rejectB2Filter, false);
shouldBe("walker.firstChild(); walker.currentNode.id", "'A1'");
shouldBe("walker.firstChild(); walker.currentNode.id", "'B1'");
shouldBe("walker.nextSibling(); walker.currentNode.id", "'B3'");

debug("<br>Testing parentNode")
walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, rejectB1Filter, false);
walker.currentNode = testElement.querySelectorAll('#C1')[0];
shouldBe("walker.parentNode(); walker.currentNode.id", "'A1'");

debug("<br>Testing previousSibling")
walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, rejectB2Filter, false);
walker.currentNode = testElement.querySelectorAll('#B3')[0];
shouldBe("walker.previousSibling(); walker.currentNode.id", "'B1'");

debug("<br>Testing previousNode")
walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, rejectB1Filter, false);
walker.currentNode = testElement.querySelectorAll('#B3')[0];
shouldBe("walker.previousNode(); walker.currentNode.id", "'B2'");
shouldBe("walker.previousNode(); walker.currentNode.id", "'A1'");
</script>
</body>
</html>
chromium/third_party/blink/web_tests/fast/dom/TreeWalker/traversal-reject.html
