browser_bug1754298.js

Enable keyboard shortcuts

add_task(async function () {

  const PAGE = `

<!doctype html>

<select>

<option value="1">AA Option</option>

<option value="2">BB Option</option>

<option value="3">&nbsp;CC Option</option>

<option value="4">&nbsp;&nbsp;DD Option</option>

<option value="5">&nbsp;&nbsp;&nbsp;EE Option</option>

</select>`;

  const url = "data:text/html," + encodeURI(PAGE);

  await BrowserTestUtils.withNewTab(

      gBrowser,

      url,

},

    async function (browser) {

      let popupShownPromise = BrowserTestUtils.waitForSelectPopupShown(window);

      await BrowserTestUtils.synthesizeMouseAtCenter("select", {}, browser);

      let popup = await popupShownPromise;

      EventUtils.sendString("C", window);

      EventUtils.sendKey("RETURN", window);

ok(

        await TestUtils.waitForCondition(() => {

          return SpecialPowers.spawn(

            browser,

[],

            () => content.document.querySelector("select").value

          ).then(value => value == 3);

}),

        "Unexpected value for select element (expected 3)!"

);

);

});