tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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test_input_vsync_alignment_lower_than_normal.html (1485B)

      1 <!DOCTYPE HTML>
      2 <html>
      3 <head>
      4  <script src="/tests/SimpleTest/SimpleTest.js"></script>
      5  <script src="/tests/SimpleTest/EventUtils.js"></script>
      6  <link rel="stylesheet" href="/tests/SimpleTest/test.css">
      7 </head>
      8 <body >
      9  <script type="text/javascript">
     10  SimpleTest.waitForExplicitFinish();
     11 
     12  let runOrder = [];
     13  function checkResult() {
     14    if (runOrder.length == 3) {
     15      info(`Checking run: ${JSON.stringify(runOrder)}`);
     16      if (runOrder[0] === "Normal") {
     17        isDeeply(
     18            runOrder,
     19            ["Normal", "InputHigh", "Vsync"],
     20            "Input priority tasks should let normal tasks to run first when there's no pending vsync"
     21        );
     22        SimpleTest.finish();
     23      } else {
     24        runOrder = [];
     25        runTest();
     26      }
     27    }
     28  }
     29 
     30  function runTest() {
     31    window.requestAnimationFrame(() => {
     32      window.requestAnimationFrame(() => {
     33        runOrder.push("Vsync");
     34        checkResult();
     35      });
     36      SpecialPowers.Services.tm.dispatchToMainThread(function() {
     37        runOrder.push("InputHigh");
     38        checkResult();
     39      }, SpecialPowers.Ci.nsIRunnablePriority.PRIORITY_INPUT_HIGH);
     40      SpecialPowers.Services.tm.dispatchToMainThread(function() {
     41        runOrder.push("Normal");
     42        checkResult();
     43      }, SpecialPowers.Ci.nsIRunnablePriority.PRIORITY_NORMAL);
     44    });
     45  }
     46 
     47  SpecialPowers.pushPrefEnv({
     48      set: [["dom.input_events.strict_input_vsync_alignment", true]]
     49  }).then(runTest);
     50  </script>
     51 </body>
     52 </html>