products/sources/formale Sprachen/C/Firefox/dom/base/test/test_NodeIterator_mutations_3.html
<!
DOCTYPE HTML >
<
html >
<
head >
<
title >DOM Traversal: NodeIterator: Mutations (3/x)</
title >
<
script src=
"/tests/SimpleTest/SimpleTest.js" ></
script >
<
link rel=
"stylesheet" type=
"text/css" href=
"/tests/SimpleTest/test.css" >
</
head >
<p id=
"display" ></p>
<
div id=
"content" style =
"display: none" >
<
span id=root><
span id=B></
span ><
span id=C></
span ><
span id=D></
span ><
span id=E><
span id=E1><
span id=E11></
span ></
span ></
span ></
span >
</
div >
<
pre id=
"test" >
<
script class=
"testbody" type=
"text/javascript" >
function removeNode(n) {
n.remove();
}
var initInner = $(
'content' ).innerHTML;
var content = $(
'content' );
function resetContent() {
content.innerHTML = initInner;
var checkIt = document.createNodeIterator(content, NodeFilter.SHOW_ELEMENT,
testNodeFilter);
var node;
while ((node = checkIt.nextNode()) != null) {
if (node.id) {
window[node.id] = node;
}
}
}
function makeSpan(id) {
var e = document.createElement(
'span' );
e.id = id;
return e;
}
function testNodeFilter(n) {
if (n.tagName ==
'SPAN' )
return NodeFilter.FILTER_ACCEPT;
return NodeFilter.FILTER_SKIP;
}
function checkseq(it, root, expect) {
var checkIt = document.createNodeIterator(root, NodeFilter.SHOW_ELEMENT,
testNodeFilter);
var printedPointer = (it.referenceNode == undefined);
var string =
'' ;
var node;
while ((node = checkIt.nextNode()) != null) {
if (!printedPointer && it.referenceNode == node) {
printedPointer = true;
var s =
'[' + node.id +
'] ' ;
if (it.pointerBeforeReferenceNode)
string +=
"* " + s;
else
string += s +
"* " ;
} else {
string += node.id +
" " ;
}
}
is(string.slice(0, -1), expect,
"sequence check" );
}
resetContent();
var it = document.createNodeIterator(E, NodeFilter.SHOW_ELEMENT,
testNodeFilter);
checkseq(it, root,
"root B C D * [E] E1 E11" );
removeNode(C);
checkseq(it, root,
"root B D * [E] E1 E11" );
it.nextNode();
removeNode(D);
checkseq(it, root,
"root B [E] * E1 E11" );
it.nextNode();
removeNode(B);
checkseq(it, root,
"root E [E1] * E11" );
it.nextNode();
checkseq(it, root,
"root E E1 [E11] *" );
it.nextNode();
checkseq(it, root,
"root E E1 [E11] *" );
it.previousNode();
it.previousNode();
it.previousNode();
it.previousNode();
it.previousNode();
checkseq(it, root,
"root * [E] E1 E11" );
resetContent();
it = document.createNodeIterator(E, NodeFilter.SHOW_ELEMENT,
testNodeFilter);
checkseq(it, root,
"root B C D * [E] E1 E11" );
it.nextNode();
it.nextNode();
checkseq(it, root,
"root B C D E [E1] * E11" );
it.previousNode();
it.previousNode();
checkseq(it, root,
"root B C D * [E] E1 E11" );
removeNode(D);
removeNode(B);
checkseq(it, root,
"root C * [E] E1 E11" );
n = makeSpan(
'n' );
root.insertBefore(n, E);
checkseq(it, root,
"root C n * [E] E1 E11" );
n2 = makeSpan(
'n2' );
root.insertBefore(n2, C);
checkseq(it, root,
"root n2 C n * [E] E1 E11" );
resetContent();
it = document.createNodeIterator(E, NodeFilter.SHOW_ELEMENT,
testNodeFilter);
checkseq(it, root,
"root B C D * [E] E1 E11" );
removeNode(root);
checkseq(it, root,
"root B C D * [E] E1 E11" );
removeNode(B);
checkseq(it, root,
"root C D * [E] E1 E11" );
removeNode(D);
checkseq(it, root,
"root C * [E] E1 E11" );
it.nextNode();
it.nextNode();
it.nextNode();
checkseq(it, root,
"root C E E1 [E11] *" );
removeNode(E1);
checkseq(it, root,
"root C [E] *" );
n = makeSpan(
'n' );
root.insertBefore(n, E);
checkseq(it, root,
"root C n [E] *" );
n2 = makeSpan(
'n2' );
E.appendChild(n2);
checkseq(it, root,
"root C n [E] * n2" );
it.nextNode();
checkseq(it, root,
"root C n E [n2] *" );
removeNode(E);
checkseq(it, root,
"root C n" );
</
script >
</
pre >
</
body >
</
html >
Messung V0.5 C=100 H=99 G=99
¤ Dauer der Verarbeitung: 0.20 Sekunden
(vorverarbeitet)
¤ *© Formatika GbR, Deutschland
