Quelle test_bug1644511.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/layout/generic/test/test_bug1644511.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>Test for Bug 1644511</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
<style>
  [contenteditable] {
    padding: .5em 40%;
  }
</style>

<div id="host" contenteditable="" dir="rtl">مرحبا عالم!<br>Hello World</div>

<button onclick="subtestLTR()"></button>

<script>
const caretMovementStyleFlag = "bidi.edit.caret_movement_style";

/**
* Can't use synthesizeKey("KEY_Arrow*") as it triggers
* nsFrameSelection::PhysicalMove() instead of CharacterMove() and thus
* suppresses the flag. See also Bug 1644489.
*/
function moveCaret(aRight, aSelect) {
  const select = aSelect ? "selectChar" : "char";
  const dir = aRight ? "Next" : "Previous";
  SpecialPowers.doCommand(window, `cmd_${select}${dir}`);
}

/**
* Safer to directly select text node when the paragraph ends with LTR text as
* the left edge is the end of the paragraph and then also the start of the LTR
* text.
*/
function putCaretInLastLine(div) {
  const { lastChild } = div;
  getSelection().collapse(lastChild, 1); // Pass 1 because of bug 1645877
}

// LTR behavior should be always same regardless of the flag
function subtestLTR() {
  putCaretInLastLine(host);
  moveCaret(true, true);
  is(getSelection().anchorOffset, 1, "Shift+ArrowRight should select from left");
  is(getSelection().focusOffset, 2, "Shift+ArrowRight should select to right");
  moveCaret(true, false);
  is(getSelection().anchorOffset, 2, "Collapsing by ArrowRight should put the caret to the right side");

  putCaretInLastLine(host);
  moveCaret(true, true);
  moveCaret(false, false);
  is(getSelection().anchorOffset, 1, "Collapsing by ArrowLeft should put the caret to the left side");
}

async function testLogicalMovement() {
  await SpecialPowers.pushPrefEnv({
    set: [[caretMovementStyleFlag, 0]]
  });
  getSelection().collapse(host);
  moveCaret(true, true);
  is(getSelection().anchorOffset, 0, "Shift+ArrowRight should select from right");
  is(getSelection().focusOffset, 1, "Shift+ArrowRight should select to left");
  moveCaret(true, false);
  is(getSelection().anchorOffset, 1, "Collapsing by ArrowRight should put the caret to the left side");

  getSelection().collapse(host);
  moveCaret(true, true);
  moveCaret(false, false);
  is(getSelection().anchorOffset, 0, "Collapsing by ArrowLeft should put the caret to the right side");

  subtestLTR();
}

async function testVisualMovement() {
  await SpecialPowers.pushPrefEnv({
    set: [[caretMovementStyleFlag, 1]]
  });
  getSelection().collapse(host);
  moveCaret(false, true);
  is(getSelection().anchorOffset, 0, "Shift+ArrowLeft should select from right");
  is(getSelection().focusOffset, 1, "Shift+ArrowLeft should select to left");
  moveCaret(false, false);
  is(getSelection().anchorOffset, 1, "Collapsing by ArrowLeft should put the caret to the left side");

  getSelection().collapse(host);
  moveCaret(false, true);
  moveCaret(true, false);
  is(getSelection().anchorOffset, 0, "Collapsing by ArrowRight should put the caret to the right side");

  subtestLTR();
}

async function testHybridMovement() {
  await SpecialPowers.pushPrefEnv({
    set: [[caretMovementStyleFlag, 2]]
  });
  getSelection().collapse(host);
  moveCaret(true, true);
  is(getSelection().anchorOffset, 0, "Shift+ArrowRight should select from right");
  is(getSelection().focusOffset, 1, "Shift+ArrowRight should select to left");
  moveCaret(false, false);
  is(getSelection().anchorOffset, 1, "Collapsing by ArrowLeft should put the caret to the left side");

  getSelection().collapse(host);
  moveCaret(true, true);
  moveCaret(true, false);
  is(getSelection().anchorOffset, 0, "Collapsing by ArrowRight should put the caret to the right side");

  subtestLTR();
}

SimpleTest.waitForExplicitFinish();
SimpleTest.promiseFocus().then(async () => {
  await testLogicalMovement();
  await testVisualMovement();
  await testHybridMovement();
  SimpleTest.finish();
});
</script>

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