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<!DOCTYPE html>
<html>
<head>
<title>Test for nsIEditor.undoRedoEnabled</title>
<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>
<p id="display"></p>
<div id="content"><input><textarea></textarea><div contenteditable></div></div>
<pre id="test">
<script>

SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(() => {
  function isTextEditor(aElement) {
    return aElement.tagName.toLowerCase() == "input" ||
           aElement.tagName.toLowerCase() == "textarea";
  }
  function getEditor(aElement) {
    if (isTextEditor(aElement)) {
      return SpecialPowers.wrap(aElement).editor;
    }
    return SpecialPowers.wrap(window).docShell.editingSession?.getEditorForWindow(window);
  }
  function setValue(aElement, aValue) {
    if (isTextEditor(aElement)) {
      aElement.value = aValue;
      return;
    }
    aElement.innerHTML = aValue;
  }
  function getValue(aElement) {
    if (isTextEditor(aElement)) {
      return aElement.value;
    }
    return aElement.innerHTML.replace(/<br>/g, "");
  }
  for (const selector of ["input", "textarea", "div[contenteditable]"]) {
    const editableElement = document.querySelector(selector);
    editableElement.focus();
    const editor = getEditor(editableElement);
    setValue(editableElement, "");
    is(
      editor.undoRedoEnabled,
      true,
      `undo/redo in editor for ${selector} should be enabled by default`
    );
    editor.enableUndo(false);
    is(
      editor.undoRedoEnabled,
      false,
      `undo/redo in editor for ${selector} should be disable after calling enableUndo(false)`
    );
    synthesizeKey("a");
    is(
      getValue(editableElement),
      "a",
      `inserting text should be handled by editor for ${selector} even if undo/redo is disabled`
    );
    is(
      editor.canUndo,
      false,
      `undo transaction shouldn't be created by editor for ${selector} when undo/redo is disabled`
    );
    editor.enableUndo(true);
    is(
      editor.undoRedoEnabled,
      true,
      `undo/redo in editor for ${selector} should be enabled after calling enableUndo(true)`
    );
    synthesizeKey("b");
    is(
      getValue(editableElement),
      "ab",
      `inserting text should be handled by editor for ${selector} after enabling undo/redo`
    );
    is(
      editor.canUndo,
      true,
      `undo transaction should be created by editor for ${selector} when undo/redo is enabled again`
    );
  }
  SimpleTest.finish();
});

</script>
</pre>
</body>
</html>