test_spellcheck_selection.html

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<!DOCTYPE html>

<meta charset="utf-8">

<title>Bug 1779846: Test enableSelectionChecking=true on nsIEditorSpellCheck.InitSpellChecker</title>

<script src="/tests/SimpleTest/SimpleTest.js"></script>

<link rel="stylesheet" href="/tests/SimpleTest/test.css" />

<div contenteditable lang="en-US">missspelled</div>

<script>

add_task(async function() {

  await new Promise(resolve => SimpleTest.waitForFocus(resolve));

  let { maybeOnSpellCheck } = SpecialPowers.ChromeUtils.importESModule(

    "resource://testing-common/AsyncSpellCheckTestHelper.sys.mjs"

);

  let editingHost = document.querySelector("div[contenteditable][lang=en-US]");

  editingHost.focus();

  await new Promise(resolve => maybeOnSpellCheck(editingHost, resolve));

  let editingSession = SpecialPowers.wrap(window).docShell.editingSession;

  let editor = editingSession.getEditorForWindow(window);

  let spellchecker = SpecialPowers.Cu.createSpellChecker();

  spellchecker.setFilterType(spellchecker.FILTERTYPE_NORMAL);

  /* Select "missspelled" in the <div>. */

  window.getSelection().selectAllChildren(editingHost);

  /* Pass true to InitSpellChecker to spellcheck the current selection of the editor.*/

  await new Promise(resolve => spellchecker.InitSpellChecker(editor, true, resolve));

  /* InitSpellChecker with enableSelectionChecking=true shouldn't throw any errors. */

  ok(spellchecker.canSpellCheck());

});

</script>