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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Tests that zoomToFocuedInput scrolls to show the cursor in input element</title>
<script src="apz_test_utils.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
</head>
<style>
@font-face {
font-family: Ahem;
src: url("/tests/layout/base/tests/Ahem.ttf");
}
body {
margin: 0px;
padding: 0px;
}
input {
/*
* This document gets scaled by 2.0x so that this `60vw` width element
* would be wider than the visual viewport.
*/
width: 60vw;
border: none;
padding: 0px;
font: 25px/1 Ahem;
}
</style>
<body>
<input id="target" type="text" maxlength="2048"/>
<script>
async function test() {
is(window.scrollY, 0, "The initial scroll offset should be 0");
is(visualViewport.scale, 2.0, "The document should get scaled by 2.0");
is(visualViewport.pageLeft, 0, "The initial visual viewport pageLeft should be 0");
const input = document.querySelector("#target");
const rect = input.getBoundingClientRect();
ok(rect.width > visualViewport.width,
`the input element width: ${rect.width} > the visual viewport width: ${visualViewport.width}`);
// Fill up the input element with N characters so that the last character should
// be outside of the visual viewport.
const nCharacters= Math.floor(rect.width / 25) + 1;
input.value = "X".repeat(nCharacters);
// And put the cursor at the tail of the characters.
input.setSelectionRange(nCharacters, nCharacters);
// Focus to the input element without scrolling.
const focusPromise = new Promise(resolve => {
input.addEventListener("focus", resolve);
});
input.focus({ preventScroll: true });
await focusPromise;
// Invoke zoom-to-focused-input.
const utils = SpecialPowers.getDOMWindowUtils(window);
utils.zoomToFocusedInput();
await promiseApzFlushedRepaints();
ok(visualViewport.pageLeft > 0,
`The visual viewport should have been scrolled: ${visualViewport.pageLeft}`);
}
SpecialPowers.getDOMWindowUtils(window).setResolutionAndScaleTo(2.0);
waitUntilApzStable()
.then(test)
.then(subtestDone, subtestFailed);
</script>
</body>
</html>