зеркало из https://github.com/mozilla/gecko-dev.git
98 строки
2.7 KiB
HTML
98 строки
2.7 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>Bug 1481500: mouse enter / leave events in slotted content</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<script src="/tests/SimpleTest/EventUtils.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css">
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<script>
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// We move the mouse from the #host to #target, then to #child-target.
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//
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// By the time we get to #child-target, we shouldn't have fired any mouseleave.
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function runTests() {
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let iframe = document.createElement('iframe');
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iframe.style.width = "600px";
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iframe.style.height = "600px";
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document.body.appendChild(iframe);
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iframe.onload = () => frameLoaded(iframe);
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iframe.srcdoc = `
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<style>
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#child-target {
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width: 80px;
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height: 80px;
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background: yellow;
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}
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</style>
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<div id="host"><div id="target"><div id="child-target"></div></div></div>
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`;
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}
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function frameLoaded(iframe) {
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let host = iframe.contentDocument.getElementById('host');
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let target = iframe.contentDocument.getElementById('target');
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let childTarget = iframe.contentDocument.getElementById('child-target');
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let sawHost = false;
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let sawTarget = false;
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let finished = false;
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host.attachShadow({ mode: 'open' }).innerHTML = `
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<style>
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:host {
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width: 500px;
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height: 500px;
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background: purple;
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}
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::slotted(div) {
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width: 200px;
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height: 200px;
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background: green;
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}
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</style>
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<slot></slot>
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`;
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host.addEventListener("mouseenter", e => {
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if (finished)
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return;
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sawHost = true;
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ok(true, "Should fire mouseenter on the host.");
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});
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host.addEventListener("mouseleave", e => {
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if (finished)
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return;
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ok(false, "Should not fire mouseleave when moving the cursor to the slotted target");
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});
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target.addEventListener("mouseenter", () => {
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if (finished)
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return;
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ok(sawHost, "Should've seen the hostmouseenter already");
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sawTarget = true;
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ok(true, "Moving the mouse into the target should trigger a mouseenter there");
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});
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target.addEventListener("mouseleave", () => {
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if (finished)
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return;
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ok(false, "Should not fire mouseleave when moving the cursor to the slotted target's child");
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});
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childTarget.addEventListener("mouseenter", () => {
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if (finished)
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return;
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ok(sawTarget, "Should've seen the target mouseenter already");
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finished = true;
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SimpleTest.finish();
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});
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synthesizeMouseAtCenter(host, { type: "mousemove" });
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synthesizeMouseAtCenter(target, { type: "mousemove" });
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synthesizeMouseAtCenter(childTarget, { type: "mousemove" });
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}
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SimpleTest.waitForExplicitFinish();
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window.onload = () => {
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SimpleTest.waitForFocus(runTests);
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};
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</script>
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