File: input-events-delete-selection.html

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<!DOCTYPE html>
<meta charset="utf-8" />
<title>
  Input Event tests for deletion with non-collapsed selection
</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>
<div id="rich" contenteditable></div>
<script>
  let inputEventsLog = [];
  const rich = document.getElementById("rich");
  const isMacOS = navigator.platform.indexOf("Mac") === 0;
  const MODIFIER_KEY = isMacOS ? "\uE00A" : "\uE009"; // Alt on Mac, Ctrl on others

  function log(event) {
    inputEventsLog.push({
      type: event.type,
      inputType: event.inputType,
      data: event.data,
    });
  }

  function resetRich() {
    inputEventsLog = [];
    rich.innerHTML = "";
  }

  function selectText(startNode, startOffset, endNode, endOffset) {
    const selection = window.getSelection();
    const range = document.createRange();
    range.setStart(startNode, startOffset);
    range.setEnd(endNode, endOffset);
    selection.removeAllRanges();
    selection.addRange(range);
  }

  rich.addEventListener("beforeinput", log);
  rich.addEventListener("input", log);

  // Test Ctrl+Backspace with non-collapsed selection
  promise_test(async function () {
    this.add_cleanup(resetRich);
    rich.innerHTML = "hello world";
    rich.focus();

    const textNode = rich.firstChild;
    // Select "or" in "world"
    selectText(textNode, 6, textNode, 8);

    // Simulate Ctrl+Backspace (Alt+Backspace on Mac)
    await new test_driver.Actions()
      .keyDown(MODIFIER_KEY)
      .keyDown("\uE003") // Backspace
      .keyUp("\uE003")
      .keyUp(MODIFIER_KEY)
      .send();

    assert_equals(inputEventsLog.length, 2, "Should have 2 events");
    const [beforeInputEvent, inputEvent] = inputEventsLog;
    assert_equals(beforeInputEvent.type, "beforeinput");
    assert_equals(inputEvent.type, "input");
    // When deleting a selection, inputType should be deleteContentBackward
    assert_equals(
      beforeInputEvent.inputType,
      "deleteContentBackward",
      "Ctrl+Backspace with selection should report deleteContentBackward"
    );
    assert_equals(
      inputEvent.inputType,
      "deleteContentBackward",
      "Ctrl+Backspace with selection should report deleteContentBackward"
    );
  }, "Ctrl+Backspace with non-collapsed selection should report deleteContentBackward");

  // Test Ctrl+Backspace with caret (collapsed selection)
  promise_test(async function () {
    this.add_cleanup(resetRich);
    rich.innerHTML = "hello world";
    rich.focus();

    const textNode = rich.firstChild;
    // Place caret after "world"
    selectText(textNode, 11, textNode, 11);

    // Simulate Ctrl+Backspace (Alt+Backspace on Mac)
    await new test_driver.Actions()
      .keyDown(MODIFIER_KEY)
      .keyDown("\uE003") // Backspace
      .keyUp("\uE003")
      .keyUp(MODIFIER_KEY)
      .send();

    assert_equals(inputEventsLog.length, 2, "Should have 2 events");
    const [beforeInputEvent, inputEvent] = inputEventsLog;
    assert_equals(beforeInputEvent.type, "beforeinput");
    assert_equals(inputEvent.type, "input");
    // With caret, should be deleteWordBackward
    assert_equals(
      beforeInputEvent.inputType,
      "deleteWordBackward",
      "Ctrl+Backspace with caret should report deleteWordBackward"
    );
    assert_equals(
      inputEvent.inputType,
      "deleteWordBackward",
      "Ctrl+Backspace with caret should report deleteWordBackward"
    );
  }, "Ctrl+Backspace with caret should report deleteWordBackward");

  // Test Ctrl+Delete with non-collapsed selection
  promise_test(async function () {
    this.add_cleanup(resetRich);
    rich.innerHTML = "hello world";
    rich.focus();

    const textNode = rich.firstChild;
    // Select "ell" in "hello"
    selectText(textNode, 1, textNode, 4);

    // Simulate Ctrl+Delete (Alt+Delete on Mac)
    await new test_driver.Actions()
      .keyDown(MODIFIER_KEY)
      .keyDown("\uE017") // Delete
      .keyUp("\uE017")
      .keyUp(MODIFIER_KEY)
      .send();

    assert_equals(inputEventsLog.length, 2, "Should have 2 events");
    const [beforeInputEvent, inputEvent] = inputEventsLog;
    assert_equals(beforeInputEvent.type, "beforeinput");
    assert_equals(inputEvent.type, "input");
    // When deleting a selection, inputType should be deleteContentForward
    assert_equals(
      beforeInputEvent.inputType,
      "deleteContentForward",
      "Ctrl+Delete with selection should report deleteContentForward"
    );
    assert_equals(
      inputEvent.inputType,
      "deleteContentForward",
      "Ctrl+Delete with selection should report deleteContentForward"
    );
  }, "Ctrl+Delete with non-collapsed selection should report deleteContentForward");

  // Test Ctrl+Delete with caret (collapsed selection)
  promise_test(async function () {
    this.add_cleanup(resetRich);
    rich.innerHTML = "hello world";
    rich.focus();

    const textNode = rich.firstChild;
    // Place caret before "world"
    selectText(textNode, 6, textNode, 6);

    // Simulate Ctrl+Delete (Alt+Delete on Mac)
    await new test_driver.Actions()
      .keyDown(MODIFIER_KEY)
      .keyDown("\uE017") // Delete
      .keyUp("\uE017")
      .keyUp(MODIFIER_KEY)
      .send();

    assert_equals(inputEventsLog.length, 2, "Should have 2 events");
    const [beforeInputEvent, inputEvent] = inputEventsLog;
    assert_equals(beforeInputEvent.type, "beforeinput");
    assert_equals(inputEvent.type, "input");
    // With caret, should be deleteWordForward
    assert_equals(
      beforeInputEvent.inputType,
      "deleteWordForward",
      "Ctrl+Delete with caret should report deleteWordForward"
    );
    assert_equals(
      inputEvent.inputType,
      "deleteWordForward",
      "Ctrl+Delete with caret should report deleteWordForward"
    );
  }, "Ctrl+Delete with caret should report deleteWordForward");

  // Test regular Backspace with non-collapsed selection (should still be deleteContentBackward)
  promise_test(async function () {
    this.add_cleanup(resetRich);
    rich.innerHTML = "hello world";
    rich.focus();

    const textNode = rich.firstChild;
    // Select "lo wo"
    selectText(textNode, 3, textNode, 8);

    // Simulate Backspace (without Ctrl)
    await test_driver.send_keys(rich, "\uE003"); // Backspace

    assert_equals(inputEventsLog.length, 2, "Should have 2 events");
    const [beforeInputEvent, inputEvent] = inputEventsLog;
    assert_equals(beforeInputEvent.type, "beforeinput");
    assert_equals(inputEvent.type, "input");
    assert_equals(
      beforeInputEvent.inputType,
      "deleteContentBackward",
      "Regular Backspace with selection should report deleteContentBackward"
    );
    assert_equals(
      inputEvent.inputType,
      "deleteContentBackward",
      "Regular Backspace with selection should report deleteContentBackward"
    );
  }, "Regular Backspace with non-collapsed selection should report deleteContentBackward");

  // Test regular Delete with non-collapsed selection (should be deleteContentForward)
  promise_test(async function () {
    this.add_cleanup(resetRich);
    rich.innerHTML = "hello world";
    rich.focus();

    const textNode = rich.firstChild;
    // Select "lo wo"
    selectText(textNode, 3, textNode, 8);

    // Simulate Delete (without Ctrl)
    await test_driver.send_keys(rich, "\uE017"); // Delete

    assert_equals(inputEventsLog.length, 2, "Should have 2 events");
    const [beforeInputEvent, inputEvent] = inputEventsLog;
    assert_equals(beforeInputEvent.type, "beforeinput");
    assert_equals(inputEvent.type, "input");
    assert_equals(
      beforeInputEvent.inputType,
      "deleteContentForward",
      "Regular Delete with selection should report deleteContentForward"
    );
    assert_equals(
      inputEvent.inputType,
      "deleteContentForward",
      "Regular Delete with selection should report deleteContentForward"
    );
  }, "Regular Delete with non-collapsed selection should report deleteContentForward");
</script>