| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <script src="../../../../resources/js-test.js"></script> |
| <script src="../../../../resources/ui-helper.js"></script> |
| <style> |
| .target { |
| width: 150px; |
| height: 150px; |
| margin-bottom: 1em; |
| border: 4px solid black; |
| color: white; |
| font-size: 20px; |
| } |
| |
| #target1 { |
| background-color: rgb(52, 199, 89); |
| } |
| |
| #target2 { |
| background-color: rgb(52, 199, 89); |
| } |
| </style> |
| <script> |
| jsTestIsAsync = true; |
| handledFirstTouch = false; |
| handledSecondTouch = false; |
| |
| function spinForDuration(duration) { |
| const startTime = Date.now(); |
| while (true) { |
| if (Date.now() - startTime > duration) |
| break; |
| } |
| } |
| |
| function handleClick(event) { |
| event.target.style.backgroundColor = "rgb(255, 59, 48)"; |
| event.target.textContent = "A click event was dispatched."; |
| testFailed("Should not have handled a click"); |
| } |
| |
| addEventListener("load", async () => { |
| const target1 = document.getElementById("target1"); |
| target1.addEventListener("touchstart", event => { |
| spinForDuration(100); |
| event.preventDefault(); |
| }); |
| target1.addEventListener("touchend", event => handledFirstTouch = true); |
| target1.addEventListener("click", handleClick); |
| |
| const target2 = document.getElementById("target2"); |
| target2.addEventListener("touchstart", () => spinForDuration(100)); |
| target2.addEventListener("touchend", event => { |
| event.preventDefault(); |
| handledSecondTouch = true; |
| }); |
| target2.addEventListener("click", handleClick); |
| |
| description("Verifies that calling preventDefault() in touchstart and touchend listeners prevents click events from being dispatched when the web page takes a long time to process the touchstart event. To manually run the test, tap the two boxes and verify that no click events are dispatched."); |
| |
| if (!window.testRunner) |
| return; |
| |
| await UIHelper.activateElement(target1); |
| await new Promise(resolve => shouldBecomeEqual("handledFirstTouch", "true", resolve)); |
| |
| await UIHelper.activateElement(target2); |
| await new Promise(resolve => shouldBecomeEqual("handledSecondTouch", "true", resolve)); |
| |
| finishJSTest(); |
| }); |
| </script> |
| </head> |
| <body> |
| <div class="target" id="target1"></div> |
| <div class="target" id="target2"></div> |
| </body> |
| </html> |
