1 description('Test TreeWalker with skipping'); 2 3 var walker; 4 var testElement = document.createElement("div"); 5 testElement.innerHTML='<div id="A1"> <div id="B1"> <div id="C1"></div> </div> <div id="B2"></div><div id="B3"></div> </div>'; 6 7 var skipB1Filter = { 8 acceptNode: function(node) { 9 if (node.id == 'B1') 10 return NodeFilter.FILTER_SKIP; 11 12 return NodeFilter.FILTER_ACCEPT; 13 } 14 } 15 16 var skipB2Filter = { 17 acceptNode: function(node) { 18 if (node.id == 'B2') 19 return NodeFilter.FILTER_SKIP; 20 21 return NodeFilter.FILTER_ACCEPT; 22 } 23 } 24 25 debug("<br>Testing nextNode") 26 walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB1Filter, false); 27 shouldBe("walker.nextNode(); walker.currentNode.id", "'A1'"); 28 shouldBe("walker.nextNode(); walker.currentNode.id", "'C1'"); 29 shouldBe("walker.nextNode(); walker.currentNode.id", "'B2'"); 30 shouldBe("walker.nextNode(); walker.currentNode.id", "'B3'"); 31 32 debug("<br>Testing firstChild") 33 walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB1Filter, false); 34 shouldBe("walker.firstChild(); walker.currentNode.id", "'A1'"); 35 shouldBe("walker.firstChild(); walker.currentNode.id", "'C1'"); 36 37 debug("<br>Testing nextSibling") 38 walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB2Filter, false); 39 shouldBe("walker.firstChild(); walker.currentNode.id", "'A1'"); 40 shouldBe("walker.firstChild(); walker.currentNode.id", "'B1'"); 41 shouldBe("walker.nextSibling(); walker.currentNode.id", "'B3'"); 42 43 debug("<br>Testing parentNode") 44 walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB1Filter, false); 45 walker.currentNode = testElement.querySelectorAll('#C1')[0]; 46 shouldBe("walker.parentNode(); walker.currentNode.id", "'A1'"); 47 48 debug("<br>Testing previousSibling") 49 walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB2Filter, false); 50 walker.currentNode = testElement.querySelectorAll('#B3')[0]; 51 shouldBe("walker.previousSibling(); walker.currentNode.id", "'B1'"); 52 53 debug("<br>Testing previousNode") 54 walker = document.createTreeWalker(testElement, NodeFilter.SHOW_ELEMENT, skipB1Filter, false); 55 walker.currentNode = testElement.querySelectorAll('#B3')[0]; 56 shouldBe("walker.previousNode(); walker.currentNode.id", "'B2'"); 57 shouldBe("walker.previousNode(); walker.currentNode.id", "'C1'"); 58 shouldBe("walker.previousNode(); walker.currentNode.id", "'A1'"); 59 60 var successfullyParsed = true; 61
