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<!DOCTYPE html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi=id=1368544
-->
<html>
<head>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1368544">Mozilla Bug 1368544</a>
<div id="display"></div>
<textarea id=textarea></textarea>
<pre id="test">
</pre>

<script class="testbody" type="application/javascript">
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(() => {
  let textarea = document.getElementById("textarea");
  let editor = SpecialPowers.wrap(textarea).editor;

  let spellChecker = SpecialPowers.Cu.createSpellChecker();
  spellChecker.InitSpellChecker(editor, false);

  textarea.focus();

  SpecialPowers.Cu.import(
    "resource://testing-common/AsyncSpellCheckTestHelper.jsm")
  .onSpellCheck(textarea, () => {
    spellChecker.UpdateCurrentDictionary(() => {
      textarea.value = "ABC";
      ok(editor.rootElement.hasChildNodes(),
         "editor of textarea has child nodes");
      sendString("D");
      is(textarea.value, "ABCD", "D is last character");
      ok(editor.rootElement.hasChildNodes(),
         "editor of textarea has child nodes");
      textarea.value = "";
      ok(editor.rootElement.hasChildNodes(),
         "editor of textarea has child node even if value is empty");

      sendString("AAA");
      synthesizeKey("KEY_Backspace", {repeat: 3});
      is(textarea.value, "", "value is empty");
      ok(editor.rootElement.hasChildNodes(),
         "editor of textarea has child node even if value is empty");

      textarea.value = "ABC";
      SpecialPowers.wrap(textarea).setUserInput("");
      is(textarea.value, "",
         "textarea should become empty when setUserInput() is called with empty string");
      if (navigator.appVersion.includes("Android")) {
        todo(!editor.rootElement.hasChildNodes(),
             "editor of textarea should have no children when user input emulation set the value to empty");
        if (editor.rootElement.childNodes.length > 0) {
          is(editor.rootElement.childNodes.length, 1, "There should be only one <br> node");
          is(editor.rootElement.firstChild.tagName.toLowerCase(), "br", "The node should be a <br> element node");
          ok(!SpecialPowers.wrap(editor.rootElement.firstChild).isPaddingForEmptyEditor,
             "The <br> should not be a padding <br> element");
        }
      } else {
        ok(!editor.rootElement.hasChildNodes(),
           "editor of textarea should have no children when user input emulation set the value to empty");
      }
      textarea.value = "ABC";
      synthesizeKey("KEY_Enter", {repeat: 2});
      textarea.value = "";
      ok(editor.rootElement.hasChildNodes(),
         "editor of textarea has child node even if value is empty");

      sendString("AAA");
      is(textarea.value, "AAA", "value is AAA");
      textarea.addEventListener("keyup", (e) => {
        if (e.key == "Enter") {
          textarea.value = "";
          ok(editor.rootElement.hasChildNodes(),
             "editor of textarea has child node even if value is empty");
          SimpleTest.finish();
        }
      });

      synthesizeKey("KEY_Enter");
    });
 });
});
</script>
</body>
</html>