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