tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_doc_busy.html (4393B)

      1 <!DOCTYPE html>
      2 <html>
      3 <head>
      4  <title>states of document</title>
      5  <link rel="stylesheet" type="text/css"
      6        href="chrome://mochikit/content/tests/SimpleTest/test.css" />
      7 
      8  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
      9  <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
     10 
     11  <script type="application/javascript"
     12          src="../common.js"></script>
     13  <script type="application/javascript"
     14          src="../role.js"></script>
     15  <script type="application/javascript"
     16          src="../states.js"></script>
     17  <script type="application/javascript"
     18          src="../promisified-events.js"></script>
     19 
     20  <script type="application/javascript">
     21    const { BrowserTestUtils } = ChromeUtils.importESModule(
     22      "resource://testing-common/BrowserTestUtils.sys.mjs");
     23    const { Downloads } = ChromeUtils.importESModule(
     24      "resource://gre/modules/Downloads.sys.mjs");
     25 
     26    function matchDocBusyChange(isBusy) {
     27      return function(event) {
     28        const scEvent = event.QueryInterface(nsIAccessibleStateChangeEvent);
     29        return (
     30          event.DOMNode == document &&
     31          scEvent.state === STATE_BUSY &&
     32          scEvent.isEnabled === isBusy
     33        );
     34      };
     35    }
     36 
     37    function getDownloadStartedPromise() {
     38      return Downloads.getList(Downloads.PUBLIC).then(list => {
     39        return new Promise(resolve => {
     40          list.addView({
     41            onDownloadAdded(download) {
     42              resolve(download);
     43            }
     44          })
     45        });
     46      });
     47    }
     48 
     49    async function downloadHandled(downloadResult) {
     50      if (Window.isInstance(downloadResult)) {
     51        return BrowserTestUtils.closeWindow(downloadResult);
     52      }
     53      // downloadResult is a download object.
     54      await downloadResult.finalize(true);
     55      return Downloads.getList(Downloads.PUBLIC).then(list => list.remove(downloadResult));
     56    }
     57 
     58    async function doTest() {
     59      // Because of variable timing, there are two acceptable possibilities:
     60      // 1. We get an event for busy and an event for not busy.
     61      // 2. The two events get coalesced, so no events are fired.
     62      // However, we fail this test if we get the first event but not the
     63      // second.
     64      let gotBusy = false;
     65      let gotNotBusy = false;
     66      const busyEvents = async function() {
     67        await waitForEvent(EVENT_STATE_CHANGE, matchDocBusyChange(true));
     68        info("Got busy event");
     69        gotBusy = true;
     70        await waitForEvent(EVENT_STATE_CHANGE, matchDocBusyChange(false));
     71        info("Got not-busy event");
     72        gotNotBusy = true;
     73      }();
     74 
     75      const downloadStarted = getDownloadStartedPromise();
     76 
     77      info("Clicking link to trigger download");
     78      synthesizeMouse(getNode("link"), 1, 1, {});
     79      info("Waiting for download prompt to open");
     80      const downloadResult = await downloadStarted;
     81 
     82      // Once we no longer show a dialog for downloads, the not busy event
     83      // might show up a bit later.
     84      if (gotBusy && !gotNotBusy) {
     85        await busyEvents;
     86      }
     87 
     88      // Any busy events should have been fired by the time the download
     89      // prompt has opened.
     90      if (gotBusy && gotNotBusy) {
     91        ok(true, "Got both busy change and not-busy change");
     92      } else if (!gotBusy && !gotNotBusy) {
     93        ok(true, "No busy events, coalesced");
     94      } else {
     95        ok(false, "Got busy change but didn't get not-busy change!");
     96      }
     97      testStates(document, 0, 0, STATE_BUSY, 0, "Document not busy");
     98 
     99      // Clean up.
    100      info("Closing download prompt");
    101      await downloadHandled(downloadResult);
    102      // We might still be waiting on busy events. Remove any pending observers.
    103      for (let observer of Services.obs.enumerateObservers(
    104        "accessible-event")
    105      ) {
    106        Services.obs.removeObserver(observer, "accessible-event");
    107      }
    108 
    109      SimpleTest.finish();
    110    }
    111 
    112    SimpleTest.waitForExplicitFinish();
    113    addA11yLoadEvent(doTest);
    114  </script>
    115 </head>
    116 
    117 <body>
    118 
    119  <a target="_blank"
    120     title="Missing busy state change event when downloading files"
    121     href="https://bugzilla.mozilla.org/show_bug.cgi?id=446469">Bug 446469</a>
    122 
    123  <p id="display"></p>
    124  <div id="content" style="display: none"></div>
    125  <pre id="test">
    126  </pre>
    127 
    128  <a id="link" href="http://example.com/a11y/accessible/tests/mochitest/dumbfile.zip">a file</a>
    129 </body>
    130 </html>