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webkit / WebKit / 15e4da4b5ce83fcfe6de6863df44c60571019d5f / . / LayoutTests / fast / selectors / nth-child-of-class-style-update.html
blob: 1fdb1a763724cbfb6467bbdebe2959303dcaf576 [file] [log] [blame]
<!doctype html>
<html>
<head>
<script src="../../resources/js-test-pre.js"></script>
<style>
target {
background-color: white;
}
target:nth-child(n+5 of .webkit) {
background-color: rgb(1, 2, 3);
}
</style>
</head>
<body>
<div id="with-renderer">
<target class="element_1 webkit"></target>
<target class="element_2 webkit"></target>
<target class="element_3 webkit"></target>
<target class="element_4 webkit"></target>
<target class="element_5 webkit"></target>
</div>
<div id="without-renderer" style="display:none;">
<target class="element_1 webkit"></target>
<target class="element_2 webkit"></target>
<target class="element_3 webkit"></target>
<target class="element_4 webkit"></target>
<target class="element_5 webkit"></target>
</div>
</body>
<script>
description('Test style update of :nth-child() when the tree structure is modified.');
function testColor(classesThatShouldMatch) {
var allTargets = document.querySelectorAll("target");
for (var i = 0; i < allTargets.length; ++i) {
var expectMath = classesThatShouldMatch.indexOf(allTargets[i].classList[0]) != -1;
shouldBeEqualToString('getComputedStyle(document.querySelectorAll("target")[' + i + ']).backgroundColor', expectMath ? 'rgb(1, 2, 3)' : 'rgb(255, 255, 255)');
}
}
function addElementAsFirstChild(tagName, className)
{
var newElement = document.createElement(tagName);
newElement.className = className + ' webkit';
var withRenderer = document.getElementById("with-renderer");
withRenderer.insertBefore(newElement, withRenderer.firstChild);
var withoutRenderer = document.getElementById("without-renderer");
withoutRenderer.insertBefore(newElement.cloneNode(), withoutRenderer.firstChild);
}
function removeWebKitClassFromElementsOfClass(className)
{
var allElementsToUpdate = document.querySelectorAll('.' + className);
for (var i = 0; i < allElementsToUpdate.length; ++i)
allElementsToUpdate[i].classList.remove("webkit");
}
function addWebKitClassToElementsOfClass(className)
{
var allElementsToUpdate = document.querySelectorAll('.' + className);
for (var i = 0; i < allElementsToUpdate.length; ++i)
allElementsToUpdate[i].classList.add("webkit");
}
function removeElementsOfClass(className)
{
var allElementsToRemove = document.querySelectorAll('.' + className);
for (var i = 0; i < allElementsToRemove.length; ++i)
allElementsToRemove[i].parentElement.removeChild(allElementsToRemove[i]);
}
debug("Initialy, &lt;foo&gt; is the first of its type, the style should match.");
testColor(["element_5"]);
debug("Removing the .webkit class from the first element, nothing should match.");
removeWebKitClassFromElementsOfClass("element_1");
testColor([]);
debug("Adding it back, we should be back to the original state.");
addWebKitClassToElementsOfClass("element_1");
testColor(["element_5"]);
debug("Removing the .webkit class from the third element, nothing should match.");
removeWebKitClassFromElementsOfClass("element_3");
testColor([]);
debug("Adding it back, we should be back to the original state.");
addWebKitClassToElementsOfClass("element_3");
testColor(["element_5"]);
debug("Removing the .webkit class from the second element, nothing should match.");
removeWebKitClassFromElementsOfClass("element_2");
testColor([]);
debug("Adding an element &lt;target&gt; on top, we should have a match again, skipping 2.");
addElementAsFirstChild("target", "element_0")
testColor(["element_5"]);
debug("Adding the .webkit calss back on 2, we should now match 2 elements.");
addWebKitClassToElementsOfClass("element_2");
testColor(["element_4", "element_5"]);
debug("Removing the element we added should put us back in the initial state.");
removeElementsOfClass("element_0");
testColor(["element_5"]);
debug("Adding an element &lt;target&gt; on top, we should now match 4 and 5.");
addElementAsFirstChild("target", "element_0")
testColor(["element_4", "element_5"]);
// Using nottarget is interesting because the ':nth-child()' part is not matched for those elements.
debug("Adding an element &lt;nottarget&gt; on top, we should now match 3, 4 and 5.");
addElementAsFirstChild("nottarget", "element_-1")
testColor(["element_3", "element_4", "element_5"]);
debug("Adding an element &lt;nottarget&gt; on top, we should now match 2, 3, 4 and 5.");
addElementAsFirstChild("nottarget", "element_-2")
testColor(["element_2", "element_3", "element_4", "element_5"]);
debug("Adding an element &lt;target&gt; on top, we should now match 1, 2, 3, 4 and 5.");
addElementAsFirstChild("target", "element_-3")
testColor(["element_1", "element_2", "element_3", "element_4", "element_5"]);
debug("Adding an element &lt;nottarget&gt; on top, we should now match 0, 1, 2, 3, 4 and 5.");
addElementAsFirstChild("nottarget", "element_-4")
testColor(["element_0", "element_1", "element_2", "element_3", "element_4", "element_5"]);
debug("Removing one of the &lt;nottarget&gt;, 0 should no longer match.");
removeElementsOfClass("element_-2");
testColor(["element_1", "element_2", "element_3", "element_4", "element_5"]);
debug("Removing one of the &lt;target&gt;, 1 should no longer match.");
removeElementsOfClass("element_-4");
testColor(["element_2", "element_3", "element_4", "element_5"]);
debug("Removing one of the &lt;notarget&gt;, 2 should no longer match.");
removeElementsOfClass("element_-1");
testColor(["element_3", "element_4", "element_5"]);
debug("Removing one of the &lt;target&gt;, 3 should no longer match.");
removeElementsOfClass("element_-3");
testColor(["element_4", "element_5"]);
debug("Removing one of the &lt;target&gt;, 4 should no longer match.");
removeElementsOfClass("element_0");
testColor(["element_5"]);
debug("Removing one of the &lt;target&gt;, there are only 4 siblings left, nothing can match.");
removeElementsOfClass("element_1");
testColor([]);
</script>
<script src="../../resources/js-test-post.js"></script>
</html>