| <!DOCTYPE html> |
| <html> |
| <body> |
| <p>This tests mouseenter and mouseleave event fires when capturing event listeners are only present on the slot element's parent.<br> |
| To manually test, move the mouse cursor into the box below and move it out.<br> |
| You should see mouseenter events on slotContainer, slot, and target in that order and mouseleave events in the reverse order.</p> |
| <div id="hostParent"><div id="host"><span id="target" style="border: solid 1px black; padding: 0.5rem;">content</span></div></div><pre id="log"></pre> |
| <script> |
| |
| const host = document.getElementById('host'); |
| const shadowRoot = host.attachShadow({mode: 'closed'}); |
| shadowRoot.innerHTML = ` |
| <div id="slotContainer"> |
| <slot id="slot"></slot> |
| </div>`; |
| const slot = shadowRoot.querySelector('slot'); |
| |
| const target = document.getElementById('target'); |
| slot.parentNode.addEventListener('mouseenter', logEvent, true); |
| slot.parentNode.addEventListener('mouseleave', logEvent, true); |
| |
| function log(text) { |
| document.getElementById('log').textContent += text + '\n'; |
| } |
| |
| function logEvent(event) { |
| log(`${event.type} on ${event.target.id}`); |
| } |
| |
| function logPhase(phase) { |
| log(`\n==${phase}==`); |
| } |
| |
| if (!window.eventSender) |
| document.write('This test requires eventSender'); |
| else { |
| testRunner.dumpAsText(); |
| const targetRect = target.getBoundingClientRect(); |
| const x = targetRect.x + 40; |
| logPhase('Entering target'); |
| eventSender.mouseMoveTo(x, targetRect.top + 5); |
| |
| logPhase('Leaving target'); |
| eventSender.mouseMoveTo(x, targetRect.bottom + 5); |
| |
| host.parentNode.style.display = 'none'; |
| } |
| |
| </script> |
| </body> |
| </html> |
