| <!DOCTYPE html> |
| <script src="../resources/runner.js"></script> |
| <div id="container" style="-webkit-user-select:none;"></div> |
| <textarea id="text"></textarea> |
| <script> |
| const NUMBER_OF_NODES = 10000; |
| |
| var shadowRoot = container.createShadowRoot(); |
| for (var i = 0; i < NUMBER_OF_NODES; i++) { |
| var child = document.createElement("div"); |
| shadowRoot.appendChild(child); |
| } |
| var middle = shadowRoot.childNodes[NUMBER_OF_NODES / 2]; |
| middle.textContent = "textToClick"; |
| |
| function clickNode(node) { |
| eventSender.mouseMoveTo(node.offsetLeft + 5, node.offsetTop+5); |
| eventSender.mouseDown(); |
| eventSender.mouseUp(); |
| } |
| clickNode(text); |
| |
| PerfTestRunner.measureTime({ |
| description: `Measures performance of clicking a -webkit-user-select:none DOM node which contains ${NUMBER_OF_NODES} children.`, |
| run: function () { |
| clickNode(text); |
| clickNode(middle); |
| } |
| }); |
| </script> |
