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<!DOCTYPE HTML>
<html>
<head>
<title>Test event suppression</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<script src="/tests/gfx/layers/apz/test/mochitest/apz_test_utils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<div>Top</div>
<script type="application/javascript">
function waitForMessage(aMsg, aCallback) {
window.addEventListener("message", function handler(e) {
if (e.data != aMsg) {
return;
}
info(`received: ${e.data}`);
window.removeEventListener("message", handler);
if (aCallback) {
aCallback(e);
}
});
}
function waitForClickEvent(aElement, aWindow) {
return new Promise((aResolve) => {
aElement.addEventListener("click", aResolve, { once: true });
synthesizeMouseAtCenter(aElement, { type: "mousedown" }, aWindow);
synthesizeMouseAtCenter(aElement, { type: "mouseup" }, aWindow);
});
}
waitForMessage("ready", async function(e) {
await waitUntilApzStable();
let innerWin = e.source;
let innerDiv = innerWin.document.querySelector("div");
let eventCount = 0;
innerDiv.addEventListener("mousemove", function() {
eventCount++;
});
// Test that event handling is suppressed.
let utils = SpecialPowers.getDOMWindowUtils(window);
utils.suppressEventHandling(true);
const TOTAL = 100;
for (let i = 0; i < TOTAL; i++) {
synthesizeMouseAtCenter(innerDiv, { type: "mousemove" }, innerWin);
}
utils.suppressEventHandling(false);
// Wait for click event to ensure we have received all mousemove events.
await waitForClickEvent(innerDiv, innerWin);
opener.info(`eventCount: ${eventCount}`);
opener.ok(eventCount < TOTAL, "event should be suspressed");
// Test that event handling is not suppressed.
eventCount = 0;
for (let i = 0; i < TOTAL; i++) {
synthesizeMouseAtCenter(innerDiv, { type: "mousemove" }, innerWin);
}
// Wait for click event to ensure we have received all mousemove events.
await waitForClickEvent(innerDiv, innerWin);
opener.info(`eventCount: ${eventCount}`);
opener.is(eventCount, TOTAL, "event should not be suspressed");
opener.postMessage("done", "*");
});
</script>
<iframe src="http://example.org/tests/dom/base/test/file_suppressed_events_middle.html"></iframe>
</body>
</html>
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