| <!DOCTYPE html> |
| <html> |
| <title>View transitions: Touch event target during render blocking</title> |
| <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/7797"> |
| <link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/#document-rendering-suppression-for-view-transitions"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-actions.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| |
| <style> |
| :root { |
| /* Ensure clicks during the transition fall through the pseudo tree root to |
| * real DOM */ |
| view-transition-name: none; |
| } |
| |
| ::view-transition { |
| /* Ensure clicks during the transition fall through the pseudo tree root to |
| * real DOM */ |
| pointer-events: none; |
| width: 0; |
| height: 0; |
| } |
| |
| ::view-transition-group(*) { |
| animation-duration: 30s; |
| } |
| |
| #touchtarget { |
| width: 100px; |
| height: 100px; |
| background: green; |
| } |
| |
| #transition { |
| width: 100px; |
| height: 100px; |
| background: blue; |
| contain: paint; |
| view-transition-name: transitionElement; |
| } |
| </style> |
| |
| <div id="touchtarget"></div> |
| <div id="transition"></div> |
| |
| <script> |
| const touchTarget = document.getElementById("touchtarget"); |
| |
| promise_test(async t => { |
| assert_implements(document.startViewTransition, "Missing document.startViewTransition"); |
| assert_true(!!touchTarget, "Sanity check: touchTarget element exists"); |
| |
| const watcher = new EventWatcher(t, document, ["touchstart", "touchend"]); |
| |
| // Need to use a single action to avoid wptrunner implicitly releasing |
| const action = new test_driver.Actions() |
| .setContext(window) |
| .addPointer("touch1", "touch") |
| .pointerMove(10, 10, { origin: "viewport", sourceName: "touch1" }) |
| .pointerDown({ sourceName: "touch1" }) |
| // Pause to let the touchstart handler run and VT begin render-blocking. |
| .pause(100) |
| .pointerUp({ sourceName: "touch1" }) |
| .send(); |
| |
| const touchstartEvt = await watcher.wait_for("touchstart"); |
| assert_equals(touchstartEvt.target, touchTarget, "Action should target touchtarget"); |
| const cbDone = Promise.withResolvers(); |
| const transition = document.startViewTransition(() => cbDone.promise); |
| |
| const touchendEvt = await watcher.wait_for("touchend"); |
| assert_equals(touchendEvt.target, touchTarget, |
| "touchend targets touched element despite render-blocking"); |
| |
| cbDone.resolve(); |
| await Promise.all([action, transition]); |
| }, "Releasing touch during render-blocking targets touched element"); |
| |
| promise_test(async t => { |
| const watcher = new EventWatcher(t, document, ['touchstart', 'touchend']); |
| |
| const transition = document.startViewTransition(async () => { |
| await new test_driver.Actions() |
| .setContext(window) |
| .addPointer("touch1", "touch") |
| .pointerMove(10, 10, {origin: "viewport", sourceName: "touch1"}) |
| .pointerDown({sourceName: "touch1"}) |
| .pointerUp({sourceName: "touch1"}) |
| .send(); |
| }); |
| |
| const touchstartEvt = await watcher.wait_for("touchstart"); |
| const touchendEvt = await watcher.wait_for("touchend"); |
| |
| assert_equals(touchstartEvt.target, document.documentElement, "touchstart targeted root"); |
| assert_equals(touchendEvt.target, document.documentElement, "touchend targeted root"); |
| }, "While render-blocked, new touch targets root"); |
| </script> |
| </html> |
