helper_zoomToFocusedInput_multiline.html

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<!DOCTYPE>

<html>

  <head>

  <title>Checking zoomToFocusedInput scrolls that focused non-input element is visible position</title>

  <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>

<div style="height: 8000px;">ABC</div>

<div id="content">

</div>

<!-- Leave additional room below the element so it can be scrolled to the center -->

<div style="height: 1000px;">ABC</div>

<script type="application/javascript">

async function test() {

  let utils = SpecialPowers.getDOMWindowUtils(window);

  // contenteditable

  let div = document.createElement("div");

  div.setAttribute("contenteditable", "true");

  for (let i = 0; i < 200; i++) {

    div.innerHTML += "foo<br>";

  div.innerHTML += "<span id=last>bar</span>";

  document.getElementById("content").appendChild(div);

  let selection = window.getSelection();

  selection.collapse(div.firstChild, 0);

  window.scrollTo(0, 0);

  await waitToClearOutAnyPotentialScrolls(window);

  is(0, window.scrollY, "scroll position is reset");

  let scrollendPromise = promiseScrollend();

  utils.zoomToFocusedInput();

  await scrollendPromise;

  await promiseApzFlushedRepaints();

  ok(window.scrollY > 0, "scroll position isn't top");

  let prevY = window.scrollY;

  selection.collapse(document.getElementById("last").firstChild, 0);

  window.scrollTo(0, 0);

  await waitToClearOutAnyPotentialScrolls(window);

  is(0, window.scrollY, "scroll position is reset");

  scrollendPromise = promiseScrollend();

  utils.zoomToFocusedInput();

  await scrollendPromise;

  await promiseApzFlushedRepaints();

  ok(prevY < window.scrollY, "scroll position is visibile position of caret");

  document.getElementById("content").removeChild(div);

  // Create a scrollable and overflowed in the viewport <textarea> element

  let textarea = document.createElement("textarea");

  textarea.style.overflow = "scroll";

  textarea.style.height = "150vh";

  // The textarea row is 200 so that "150vh / 100" is a reasonable font-size

  // to overflow the area.

  textarea.style.fontSize = "calc(150vh / 100)";

  textarea.rows = 200;

  for (let i = 0; i < 200; i++) {

    textarea.value += "foo\n";

  document.getElementById("content").appendChild(textarea);

  textarea.focus();

  await waitToClearOutAnyPotentialScrolls(window);

  textarea.setSelectionRange(0, 0);

  window.scrollTo(0, 0);

  await waitToClearOutAnyPotentialScrolls(window);

  is(0, window.scrollY, "scroll position is reset");

  scrollendPromise = promiseScrollend();

  utils.zoomToFocusedInput();

  await scrollendPromise;

  await promiseApzFlushedRepaints();

  ok(window.scrollY > 0, "scroll position isn't top");

  prevY = window.scrollY;

  textarea.setSelectionRange(textarea.value.length, textarea.value.length);

  window.scrollTo(0, 0);

  await waitToClearOutAnyPotentialScrolls(window);

  is(0, window.scrollY, "scroll position is reset");

  const scrollTopInTextArea = textarea.scrollTop;

  const scrollLeftInTextArea = textarea.scrollLeft;

  scrollendPromise = promiseScrollend();

  utils.zoomToFocusedInput();

  await scrollendPromise;

  await promiseApzFlushedRepaints();

  ok(prevY < window.scrollY, "scroll position is visibile position of caret");

  isfuzzy(textarea.scrollTop, scrollTopInTextArea, 2,

     "textarea's scrollTop is unchanged");

  isfuzzy(textarea.scrollLeft, scrollLeftInTextArea, 2,

     "textarea's scrollLeft is unchanged");

  document.getElementById("content").removeChild(textarea);

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

</script>

</body>

</html>