Quelle silent-ignore.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/testing/web-platform/tests/vibration/silent-ignore.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset='utf-8'/>
    <title>Vibration API: test that calls to vibrate() are silently ignored when the device cannot vibrate</title>
    <link rel='author' title='Robin Berjon' href='mailto:robin@berjon.com'/>
    <link rel='help' href='https://w3c.github.io/vibration/#dfn-perform-vibration'/>
    <meta name='flags' content='dom, no-vibrator'/>
    <meta name='assert' content='If the device does not provide a vibration mechanism, or it is disabled, the user agent must silently ignore any invocations of the vibrate() method.'/>
  </head>
  <body>
    <h1>Description</h1>
    <p>
      <strong>This test is only useful on devices that do not have vibration capability</strong>.
      If your device supports vibration, then <strong>skip</strong> this test. An implementation
      supporting this API but running on a device that cannot vibrate must silently ignore the
      call (we test that it doesn't throw).
    </p>
    <button type="button" id="button">Click here if the device doesn't support vibration
    <div id='log'></div>
    <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>
      if (undefined !== navigator.vibrate) {
          async_test(function (t) {
              var target = document.getElementById('button');
              target.addEventListener("click", t.step_func_done(function() {
                  assert_true(navigator.vibrate(1000), "vibrate() returns true when vibration is not supported");
              }));
              test_driver.click(target).catch(t.unreached_func("click failed"));
          }, "Calling vibrate returns true");
      }
    </script>
  </body>
</html>

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