Emilio Cobos Álvarez
1c763198a6
The selection controller might be recreated without editor recreation itself. This could already realistically happen before bug 2016280 as far as I can tell. Differential Revision: https://phabricator.services.mozilla.com/D295508
48 lines
1.6 KiB
HTML
48 lines
1.6 KiB
HTML
<!doctype html>
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<meta charset="utf-8">
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<title>Testing nsIDOMWindowUtils.sendSelectionSetEvent works after the editor's selection controller is recreated (bug 2029505)</title>
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<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
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<script>
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"use strict";
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SimpleTest.waitForExplicitFinish();
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SimpleTest.waitForFocus(async () => {
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const flex = document.getElementById("flex");
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const input = flex.querySelector("input");
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function waitForFlushingIMEContentObserver() {
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return new Promise(resolve => requestAnimationFrame(
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() => requestAnimationFrame(resolve)
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));
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}
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input.focus();
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input.setSelectionRange(input.value.length, input.value.length);
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await waitForFlushingIMEContentObserver();
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// Force the input to be reframed. This can cause the focused editor's
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// selection controller to be recreated while the editor itself survives.
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flex.getBoundingClientRect();
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flex.style.display = "flex";
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flex.getBoundingClientRect();
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flex.style.display = "";
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flex.getBoundingClientRect();
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await waitForFlushingIMEContentObserver();
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const ret = windowUtils.sendSelectionSetEvent(
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1, 3,
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SpecialPowers.Ci.nsIDOMWindowUtils.SELECTION_SET_FLAG_USE_NATIVE_LINE_BREAK
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);
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ok(ret, "sendSelectionSetEvent should succeed");
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is(input.selectionStart, 1,
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"selectionStart should be updated after reframe");
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is(input.selectionEnd, 4,
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"selectionEnd should be updated after reframe");
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SimpleTest.finish();
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});
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</script>
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<div id="flex">
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<input value="test123">
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</div>
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