Quelle test_bug1230473.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/editor/libeditor/tests/test_bug1230473.html

<!DOCTYPE HTML>
<html>

<head>
  <meta charset="utf-8">
  <title>Test for Bug 1230473</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1230473">Mozilla Bug 1230473</a>
<input id="input">
<textarea id="textarea"></textarea>
<div id="div" contenteditable></div>
<script type="application/javascript">
/** Test for Bug 1230473 **/
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(() => {
  function runTest(aEditor) {
    function committer() {
      aEditor.blur();
      aEditor.focus();
    }
    function isNSEditableElement() {
      return aEditor.tagName.toLowerCase() == "input" || aEditor.tagName.toLowerCase() == "textarea";
    }
    function value() {
      return isNSEditableElement() ? aEditor.value : aEditor.textContent;
    }
    function isComposing() {
      return isNSEditableElement() ? SpecialPowers.wrap(aEditor)
                                                  .editor
                                                  .composing :
                                     SpecialPowers.wrap(window)
                                                  .docShell
                                                  .editor
                                                  .composing;
    }
    function clear() {
      if (isNSEditableElement()) {
        aEditor.value = "";
      } else {
        aEditor.textContent = "";
      }
    }

    clear();

    // FYI: Chrome commits composition if blur() and focus() are called during
    //      composition.  But note that if they are called by compositionupdate
    //      listener, the behavior is unstable.  On Windows, composition is
    //      canceled.  On Linux and macOS, the composition is committed
    //      internally but the string keeps underlined.  If they are called
    //      by input event listener, committed on any platforms though.
    //      On the other hand, Edge and Safari keeps composition even with
    //      calling both blur() and focus().

    // Committing at compositionstart
    aEditor.focus();
    aEditor.addEventListener("compositionstart", committer, true);
    synthesizeCompositionChange({ composition: { string: "a", clauses: [{length: 1, attr: COMPOSITION_ATTR_RAW_CLAUSE }] },
                                  caret: { start: 1, length: 0 }, key: { key: "a" }});
    aEditor.removeEventListener("compositionstart", committer, true);
    ok(!isComposing(), "composition in " + aEditor.id + " should be committed by compositionstart event handler");
    is(value(), "", "composition in " + aEditor.id + " shouldn't insert any text since it's committed at compositionstart");
    clear();

    // Committing at first compositionupdate
    aEditor.focus();
    aEditor.addEventListener("compositionupdate", committer, true);
    synthesizeCompositionChange({ composition: { string: "a", clauses: [{length: 1, attr: COMPOSITION_ATTR_RAW_CLAUSE }] },
                                  caret: { start: 1, length: 0 }, key: { key: "a" }});
    aEditor.removeEventListener("compositionupdate", committer, true);
    ok(!isComposing(), "composition in " + aEditor.id + " should be committed by compositionupdate event handler");
    is(value(), "a", "composition in " + aEditor.id + " should have \"a\" since IME committed with it");
    clear();

    // Committing at second compositionupdate
    aEditor.focus();
    // FYI: "compositionstart" will be dispatched automatically.
    synthesizeCompositionChange({ composition: { string: "a", clauses: [{length: 1, attr: COMPOSITION_ATTR_RAW_CLAUSE }] },
                                  caret: { start: 1, length: 0 }, key: { key: "a" }});
    ok(isComposing(), "composition should be in " + aEditor.id + " before dispatching second compositionupdate");
    is(value(), "a", "composition in " + aEditor.id + " should be 'a' before dispatching second compositionupdate");
    aEditor.addEventListener("compositionupdate", committer, true);
    synthesizeCompositionChange({ composition: { string: "ab", clauses: [{length: 2, attr: COMPOSITION_ATTR_RAW_CLAUSE }] },
                                  caret: { start: 2, length: 0 }, key: { key: "b" }});
    aEditor.removeEventListener("compositionupdate", committer, true);
    ok(!isComposing(), "composition in " + aEditor.id + " should be committed by compositionupdate event handler");
    is(value(), "ab", "composition in " + aEditor.id + " should have \"ab\" since IME committed with it");
    clear();
  }
  runTest(document.getElementById("input"));
  runTest(document.getElementById("textarea"));
  runTest(document.getElementById("div"));
  SimpleTest.finish();
});
</script>
</body>
</html>

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