53 lines
1.7 KiB
JavaScript
53 lines
1.7 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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function getCenterY(acc) {
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const y = {};
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const h = {};
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acc.getBounds({}, y, {}, h);
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return y.value + h.value / 2;
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}
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/**
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* Test nsIAccessible::scrollTo.
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*/
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addAccessibleTask(
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`
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<div id="scroller" style="height: 100vh; overflow: scroll;">
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<hr style="height: 100vh;">
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<p id="p1" style="height: 10vh;">a</p>
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<hr style="height: 100vh;">
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<p id="p2" style="height: 10vh;">b</p>
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<hr style="height: 100vh;">
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</div>
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`,
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async function (browser, docAcc) {
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const scroller = findAccessibleChildByID(docAcc, "scroller");
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const scrollerY = getCenterY(scroller);
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// scroller can only show one of p1 or p2, not both.
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const p1 = findAccessibleChildByID(docAcc, "p1");
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info("scrollTo p1");
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let scrolled = waitForEvent(
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nsIAccessibleEvent.EVENT_SCROLLING_END,
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scroller
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);
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p1.scrollTo(SCROLL_TYPE_ANYWHERE);
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await scrolled;
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isWithin(getCenterY(p1), scrollerY, 10, "p1 scrolled to center");
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const p2 = findAccessibleChildByID(docAcc, "p2");
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info("scrollTo p2");
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scrolled = waitForEvent(nsIAccessibleEvent.EVENT_SCROLLING_END, scroller);
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p2.scrollTo(SCROLL_TYPE_ANYWHERE);
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await scrolled;
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isWithin(getCenterY(p2), scrollerY, 10, "p2 scrolled to center");
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info("scrollTo p1");
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scrolled = waitForEvent(nsIAccessibleEvent.EVENT_SCROLLING_END, scroller);
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p1.scrollTo(SCROLL_TYPE_ANYWHERE);
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await scrolled;
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isWithin(getCenterY(p1), scrollerY, 10, "p1 scrolled to center");
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},
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{ topLevel: true, iframe: true, remoteIframe: true, chrome: true }
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);
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