| <!doctype html> |
| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| <style> |
| target { |
| background-color: white; |
| } |
| target:nth-last-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-last-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 appendElement(tagName, className) |
| { |
| var newElement = document.createElement(tagName); |
| newElement.className = className + ' webkit'; |
| |
| var withRenderer = document.getElementById("with-renderer"); |
| withRenderer.appendChild(newElement); |
| |
| var withoutRenderer = document.getElementById("without-renderer"); |
| withoutRenderer.appendChild(newElement.cloneNode()); |
| } |
| |
| 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("Initial state."); |
| testColor(["element_1"]); |
| |
| debug("Removing the .webkit class from the fifth element, nothing should match."); |
| removeWebKitClassFromElementsOfClass("element_5"); |
| testColor([]); |
| |
| debug("Adding it back, we should be back to the original state."); |
| addWebKitClassToElementsOfClass("element_5"); |
| testColor(["element_1"]); |
| |
| 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_1"]); |
| |
| debug("Removing the .webkit class from the second element, nothing should match."); |
| removeWebKitClassFromElementsOfClass("element_2"); |
| testColor([]); |
| |
| debug("Appending we should have a match again, skipping 2."); |
| appendElement("target", "element_6") |
| testColor(["element_1"]); |
| |
| debug("Adding the .webkit class back on 2, we should now match 2 elements."); |
| addWebKitClassToElementsOfClass("element_2"); |
| testColor(["element_1", "element_2"]); |
| |
| debug("Removing the element we added should put us back in the initial state."); |
| removeElementsOfClass("element_6"); |
| testColor(["element_1"]); |
| |
| debug("Appending an element, we should match the first two targets again."); |
| appendElement("target", "element_6") |
| testColor(["element_1", "element_2"]); |
| |
| // Using nottarget is interesting because the ':nth-last-child()' part is not matched for those elements. |
| debug("Appending an element <nottarget>, we should now match 1, 2, 3."); |
| appendElement("nottarget", "element_-1") |
| testColor(["element_1", "element_2", "element_3"]); |
| |
| debug("Appending an element <nottarget>, we should now match 1, 2, 3, 4."); |
| appendElement("nottarget", "element_-2") |
| testColor(["element_1", "element_2", "element_3", "element_4"]); |
| |
| debug("Appending an element <target>, we should now match 1, 2, 3, 4 and 5."); |
| appendElement("target", "element_-3") |
| testColor(["element_1", "element_2", "element_3", "element_4", "element_5"]); |
| |
| debug("Removing one of the <nottarget>, 5 should no longer match."); |
| removeElementsOfClass("element_-2"); |
| testColor(["element_1", "element_2", "element_3", "element_4"]); |
| |
| debug("Removing the class from one of the <nottarget>, 4 should no longer match."); |
| removeWebKitClassFromElementsOfClass("element_-1"); |
| testColor(["element_1", "element_2", "element_3"]); |
| |
| debug("Removing one of the <notarget>, 3 should no longer match."); |
| removeElementsOfClass("element_-3"); |
| testColor(["element_1", "element_2"]); |
| |
| debug("Removing the class from one of the <target>, 2 should no longer match."); |
| removeWebKitClassFromElementsOfClass("element_3"); |
| testColor(["element_1"]); |
| |
| debug("Removing one of the <target>, nothing should match."); |
| removeElementsOfClass("element_4"); |
| testColor([]); |
| |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </html> |
