111 lines
4.5 KiB
HTML
111 lines
4.5 KiB
HTML
<!doctype html>
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<html>
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<head>
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<script src="../../resources/js-test-pre.js"></script>
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<style>
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testnode {
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background-color: white;
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}
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:nth-last-child(n+5).target {
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background-color: rgb(1, 2, 3);
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}
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</style>
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</head>
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<body>
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<div id="with-renderer">
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<testnode class="element_1 target"></testnode>
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<testnode class="element_2 target"></testnode>
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<testnode class="element_3 target"></testnode>
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<testnode class="element_4 target"></testnode>
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<testnode class="element_5 target"></testnode>
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</div>
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<div id="without-renderer" style="display:none;">
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<testnode class="element_1 target"></testnode>
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<testnode class="element_2 target"></testnode>
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<testnode class="element_3 target"></testnode>
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<testnode class="element_4 target"></testnode>
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<testnode class="element_5 target"></testnode>
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</div>
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</body>
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<script>
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description('Test style update of :nth-last-child() when the tree structure is modified. In this case, :nth-last-child() is not the last component of the compound selector, which is a bit less common.');
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function testColor(classesThatShouldMatch) {
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var alltestnodes = document.querySelectorAll("testnode");
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for (var i = 0; i < alltestnodes.length; ++i) {
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var expectMath = classesThatShouldMatch.indexOf(alltestnodes[i].classList[0]) != -1;
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shouldBeEqualToString('getComputedStyle(document.querySelectorAll("testnode")[' + i + ']).backgroundColor', expectMath ? 'rgb(1, 2, 3)' : 'rgb(255, 255, 255)');
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}
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}
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function addElementAsFirstChild(tagName, className)
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{
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var newElement = document.createElement(tagName);
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newElement.className = className;
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var withRenderer = document.getElementById("with-renderer");
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withRenderer.insertBefore(newElement, withRenderer.firstChild);
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var withoutRenderer = document.getElementById("without-renderer");
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withoutRenderer.insertBefore(newElement.cloneNode(), withoutRenderer.firstChild);
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}
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function removeElementsOfClass(className)
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{
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var allElementsToRemove = document.querySelectorAll('.' + className);
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for (var i = 0; i < allElementsToRemove.length; ++i)
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allElementsToRemove[i].parentElement.removeChild(allElementsToRemove[i]);
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}
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debug("Initialy, only the first element should match.");
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testColor(["element_1"]);
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debug("Adding an element <testnode> on top, we should now match 0 and 1.");
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addElementAsFirstChild("testnode", "element_0 target")
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testColor(["element_0", "element_1"]);
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// Using nottestnode is interesting because the ':nth-last-child()' part is not matched for those elements.
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debug("Adding an element <nottestnode> on top, we should now match -1, 0 and 1.");
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addElementAsFirstChild("testnode", "element_-1 target")
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testColor(["element_-1", "element_0", "element_1"]);
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debug("Adding an element <nottestnode> on top, we should now match -2, -1, 0 and 1.");
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addElementAsFirstChild("testnode", "element_-2 target")
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testColor(["element_-2", "element_-1", "element_0", "element_1"]);
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debug("Adding an element <testnode> on top, we should now match -3, -2, -1, 0 and 1.");
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addElementAsFirstChild("testnode", "element_-3 target")
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testColor(["element_-3", "element_-2", "element_-1", "element_0", "element_1"]);
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debug("Adding an element <nottestnode> on top, we should now match -4, -3, -2, -1, 0 and 1.");
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addElementAsFirstChild("testnode", "element_-4 target")
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testColor(["element_-4", "element_-3", "element_-2", "element_-1", "element_0", "element_1"]);
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debug("Removing one of the <nottestnode>, -2 should no longer match.");
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removeElementsOfClass("element_-2");
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testColor(["element_-4", "element_-3", "element_-1", "element_0", "element_1"]);
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debug("Removing one of the <testnode>, -4 should no longer match.");
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removeElementsOfClass("element_-4");
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testColor(["element_-3", "element_-1", "element_0", "element_1"]);
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debug("Removing one of the <notestnode>, -1 should no longer match.");
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removeElementsOfClass("element_-1");
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testColor(["element_-3", "element_0", "element_1"]);
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debug("Removing one of the <testnode>, -3 should no longer match.");
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removeElementsOfClass("element_-3");
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testColor(["element_0", "element_1"]);
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debug("Removing one of the <testnode>, 0 should no longer match.");
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removeElementsOfClass("element_0");
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testColor(["element_1"]);
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debug("Removing one of the <testnode>, there are only 4 siblings left, nothing can match.");
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removeElementsOfClass("element_1");
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testColor([]);
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</script>
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<script src="../../resources/js-test-post.js"></script>
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</html>
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