<!doctype html>
<meta charset=utf-8>
<meta name="variant" content="?editor=input&hide-target=editor">
<meta name="variant" content="?editor=textarea&hide-target=editor">
<meta name="variant" content="?editor=input&hide-target=parent">
<meta name="variant" content="?editor=textarea&hide-target=parent">
<title>Testing edit action in zombie editor</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<body>
<script>
"use strict";

const params = new URLSearchParams(location.search);

/**
 * The expected results is based on Chrome 93.
 * The behavior is reasonable because JS API which requires focus and user input
 * does not work if it's hidden.
 */

function init() {
  const div = document.createElement("div");
  const editor = document.createElement(params.get("editor"));
  const hideTarget = params.get("hide-target") == "editor" ? editor : div;
  editor.value = "default value";
  div.appendChild(editor);
  document.body.appendChild(div);
  return [ hideTarget, editor ];
}

function finalize(editor) {
  editor.blur();
  editor.parentNode.remove();
  document.body.getBoundingClientRect();
}

promise_test(async () => {
  await new Promise(resolve => addEventListener("load", resolve, {once: true}));
}, "Wait for load event");

promise_test(async () => {
  const [hideTarget, editor] = init();
  try {
    editor.select();
    hideTarget.style.display = "none";
    document.execCommand("insertText", false, "typed value");
    assert_equals(editor.value, "default value", "The value shouldn't be modified by \"insertText\" command");
  } finally {
    finalize(editor);
  }
}, `execCommand("insertText", false, "typed value") in <${params.get("editor")}>`);

promise_test(async () => {
  const [hideTarget, editor] = init();
  try {
    editor.select();
    hideTarget.style.display = "none";
    document.execCommand("delete");
    assert_equals(editor.value, "default value", "The value shouldn't be modified by \"delete\" command");
  } finally {
    finalize(editor);
  }
}, `execCommand("delete") in <${params.get("editor")}>`);

promise_test(async () => {
  const [hideTarget, editor] = init();
  try {
    editor.select();
    const waitForKeyDown = new Promise(resolve => {
      editor.addEventListener("keydown", () => {
        hideTarget.style.display = "none";
        resolve();
      });
    });
    await new test_driver.Actions()
      .keyDown("a").keyUp("a")
      .send();
    assert_equals(
      editor.value,
      "default value",
      "The value shouldn't be modified by user input if \"keydown\" event listener destroyed the editor"
    );
  } finally {
    finalize(editor);
  }
}, `<${params.get("editor")}> is hidden by "keydown" event listener`);

promise_test(async () => {
  const [hideTarget, editor] = init();
  try {
    editor.select();
    const waitForKeyDown = new Promise(resolve => {
      editor.addEventListener("keypress", () => {
        hideTarget.style.display = "none";
        resolve();
      });
    });
    await new test_driver.Actions()
      .keyDown("a").keyUp("a")
      .send();
    assert_equals(
      editor.value,
      "default value",
      "The value shouldn't be modified by user input if \"keypress\" event listener destroyed the editor"
    );
  } finally {
    finalize(editor);
  }
}, `<${params.get("editor")}> is hidden by "keypress" event listener`);

promise_test(async () => {
  const [hideTarget, editor] = init();
  try {
    editor.select();
    const waitForKeyDown = new Promise(resolve => {
      editor.addEventListener("beforeinput", () => {
        hideTarget.style.display = "none";
        resolve();
      });
    });
    await new test_driver.Actions()
      .keyDown("a").keyUp("a")
      .send();
    assert_equals(
      editor.value,
      "default value",
      "The value shouldn't be modified by user input if \"beforeinput\" event listener destroyed the editor"
    );
  } finally {
    finalize(editor);
  }
}, `<${params.get("editor")}> is hidden by "beforeinput" event listener`);
</script>
</body>
