| <!DOCTYPE html> |
| <html> |
| <title>View transitions: Pointer capture target while rendering is suppressed</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; |
| } |
| |
| #capturetarget { |
| width: 100px; |
| height: 100px; |
| background: green; |
| } |
| |
| #transition { |
| width: 100px; |
| height: 100px; |
| background: blue; |
| contain: paint; |
| view-transition-name: transitionElement; |
| } |
| </style> |
| |
| <div id="capturetarget"></div> |
| <div id="transition"></div> |
| |
| <script> |
| const captureTarget = document.getElementById("capturetarget"); |
| |
| function waitForEvent(target, name, condition = () => true) { |
| return new Promise(resolve => { |
| function func(e) { |
| if (condition(e)) { |
| target.removeEventListener(name, func); |
| resolve(e); |
| } |
| } |
| target.addEventListener(name, func); |
| }); |
| } |
| |
| promise_test(async t => { |
| assert_implements(document.startViewTransition, "Missing document.startViewTransition"); |
| assert_true(!!captureTarget, "Sanity check: captureTarget element exists"); |
| |
| // Need to use a single action to avoid wptrunner implicitly releasing |
| const action = new test_driver.Actions() |
| .setContext(window) |
| .addPointer("mousePointer1", "mouse") |
| .pointerMove(10, 10, { origin: "viewport", sourceName: "mousePointer1" }) |
| .pointerDown({ sourceName: "mousePointer1" }) |
| // Pause to let the pointerdown handler run: sets capture and starts VT. |
| .pause(100) |
| // While render-blocked, move outside capture target |
| .pointerMove(150, 150, { origin: "viewport", sourceName: "mousePointer1" }) |
| // Pause to let cbDone.resolve() run and transition.ready to settle. |
| .pause(100) |
| // After render-blocking, do another move outside capture target |
| .pointerMove(200, 200, { origin: "viewport", sourceName: "mousePointer1" }) |
| .pointerUp({ sourceName: "mousePointer1" }) |
| .send(); |
| |
| const eDown = await waitForEvent(document, "pointerdown"); |
| assert_equals(eDown.target, captureTarget, "Action should target captureTarget"); |
| captureTarget.setPointerCapture(eDown.pointerId); |
| |
| const cbDone = Promise.withResolvers(); |
| const transition = document.startViewTransition(() => cbDone.promise); |
| |
| // Checking for exactly e.clientX==150 might time out |
| const eMove1 = await waitForEvent(document, "pointermove", e => e.clientX > 120); |
| assert_equals(eMove1.target, captureTarget, "Capture is still active during render block"); |
| |
| cbDone.resolve(); |
| await transition.ready; |
| |
| const eMove2 = await waitForEvent(document, "pointermove", e => e.clientX > 170); |
| assert_equals(eMove2.target, captureTarget, "Capture is still active after render block"); |
| |
| await action; |
| }, "Input with active pointer capture targets captured element while render-blocked"); |
| </script> |
| </html> |
