helper_zoomToFocusedInput_zoom.html

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<!DOCTYPE>

<html>

  <head>

  <title>Checking zoomToFocusedInput zooms if meta viewport allows it</title>

  <meta name="viewport" content="width=device-width, height=device-height, initial-scale=0.5 minimum-scale=0.5, maximum-scale=1" />

  <script type="application/javascript" src="apz_test_utils.js"></script>

  <script type="application/javascript" src="apz_test_native_event_utils.js"></script>

  <script src="/tests/SimpleTest/paint_listener.js"></script>

  </head>

<body>

<input id="input1" type="text" style="border: 5px solid black"/>

<script type="application/javascript">

async function test() {

  let utils = SpecialPowers.getDOMWindowUtils(window);

  let resolution = await getResolution();

  ok(resolution > 0,

     "The initial_resolution is " + resolution + ", which is some sane value");

  document.getElementById('input1').focus();

  await waitToClearOutAnyPotentialScrolls(window);

  await promiseApzFlushedRepaints();

  let prev_resolution = resolution;

  resolution = await getResolution();

  ok(resolution == prev_resolution, "focusing input did not change resolution " + resolution);

  let transformEndPromise = promiseTransformEnd();

  utils.zoomToFocusedInput();

  await waitToClearOutAnyPotentialScrolls(window);

  await transformEndPromise;

  await promiseApzFlushedRepaints();

  resolution = await getResolution();

  ok(resolution != prev_resolution, "zoomToFocusedInput input changed resolution " + resolution);

waitUntilApzStable().then(test).then(subtestDone, subtestFailed);

</script>

</body>

</html>