editor/libeditor/tests/test_bug1053048.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=1053048
   5 -->
   6 <head>
   7   <meta charset="utf-8">
   8   <title>Test for Bug 1053048</title>
   9   <script src="/tests/SimpleTest/SimpleTest.js"></script>
  10   <script src="/tests/SimpleTest/EventUtils.js"></script>
  11   <link rel="stylesheet" href="/tests/SimpleTest/test.css">
  12   <script type="application/javascript">
  13
  14   /** Test for Bug 1053048 **/
  15   SimpleTest.waitForExplicitFinish();
  16   SimpleTest.waitForFocus(runTests);
  17
  18   const nsISelectionListener = SpecialPowers.Ci.nsISelectionListener;
  19
  20   async function runTests() {
  21     var textarea = SpecialPowers.wrap(document.getElementById("textarea"));
  22     textarea.focus();
  23
  24     var editor = textarea.editor;
  25     var selectionPrivate = editor.selection;
  26
  27     // Move caret to the end of the textarea
  28     synthesizeMouse(textarea, 290, 10, {});
  29     is(textarea.selectionStart, 3, "selectionStart should be 3 (after \"foo\")");
  30     is(textarea.selectionEnd, 3, "selectionEnd should be 3 (after \"foo\")");
  31
  32     // This test **was** trying to check whether a selection listener which
  33     // runs while an editor handles an edit action does not stop handling it.
  34     // However, this selection listener caught previous selection change
  35     // notification immediately before synthesizing the `Enter` key press
  36     // unexpectedly.  And now, selection listener may not run immediately after
  37     // synthesizing the key press.  So, we don't need to check whether a
  38     // notification actually comes here.
  39     let selectionListener = {
  40       notifySelectionChanged() {
  41         ok(true, "selectionStart: " + textarea.selectionStart);
  42         ok(true, "selectionEnd: " + textarea.selectionEnd);
  43       },
  44     };
  45     selectionPrivate.addSelectionListener(selectionListener);
  46     synthesizeKey("KEY_Enter");
  47     is(textarea.selectionStart, 4, "selectionStart should be 4");
  48     is(textarea.selectionEnd, 4, "selectionEnd should be 4");
  49     is(textarea.value, "foo\n", "The line break should be appended");
  50     selectionPrivate.removeSelectionListener(selectionListener);
  51
  52     SimpleTest.finish();
  53   }
  54   </script>
  55 </head>
  56 <body>
  57 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1053048">Mozilla Bug 1053048</a>
  58 <p id="display"></p>
  59 <div id="content" style="display: none">
  60
  61 </div>
  62
  63 <textarea id="textarea"
  64           style="height: 100px; width: 300px; -moz-appearance: none"
  65           spellcheck="false"
  66           onkeydown="this.style.display='block'; this.style.height='200px';">foo</textarea>
  67
  68 <pre id="test">
  69 </pre>
  70 </body>
  71 </html>