tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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iframe-no-root.html (2169B)

      1 <!DOCTYPE html>
      2 <meta name="viewport" content="width=device-width,initial-scale=1">
      3 <script src="/resources/testharness.js"></script>
      4 <script src="/resources/testharnessreport.js"></script>
      5 <script src="./resources/intersection-observer-test-utils.js"></script>
      6 
      7 <style>
      8 pre, #log {
      9  position: absolute;
     10  top: 0;
     11  left: 200px;
     12 }
     13 .spacer {
     14  height: calc(100vh + 100px);
     15 }
     16 iframe {
     17  height: 100px;
     18  width: 150px;
     19 }
     20 </style>
     21 
     22 <div class="spacer"></div>
     23 <iframe id="target-iframe" src="resources/iframe-no-root-subframe.html"></iframe>
     24 <div class="spacer"></div>
     25 
     26 <script>
     27 var vw = document.documentElement.clientWidth;
     28 var vh = document.documentElement.clientHeight;
     29 
     30 var iframe = document.getElementById("target-iframe");
     31 var target;
     32 var entries = [];
     33 
     34 iframe.onload = function() {
     35  runTestCycle(function() {
     36    assert_true(!!iframe, "iframe exists");
     37 
     38    target = iframe.contentDocument.getElementById("target");
     39    assert_true(!!target, "Target element exists.");
     40    var observer = new IntersectionObserver(function(changes) {
     41      entries = entries.concat(changes)
     42    });
     43    observer.observe(target);
     44    entries = entries.concat(observer.takeRecords());
     45    assert_equals(entries.length, 0, "No initial notifications.");
     46    runTestCycle(step0, "First rAF.");
     47  }, "Observer with the implicit root; target in a same-origin iframe.");
     48 };
     49 
     50 function step0() {
     51  document.scrollingElement.scrollTop = 200;
     52  runTestCycle(step1, "document.scrollingElement.scrollTop = 200");
     53  checkLastEntry(entries, 0, [8, 108, 208, 308, 0, 0, 0, 0, 0, vw, 0, vh, false]);
     54 }
     55 
     56 function step1() {
     57  iframe.contentDocument.scrollingElement.scrollTop = 250;
     58  runTestCycle(step2, "iframe.contentDocument.scrollingElement.scrollTop = 250");
     59  assert_equals(entries.length, 1, "entries.length == 1");
     60 }
     61 
     62 function step2() {
     63  document.scrollingElement.scrollTop = 100;
     64  runTestCycle(step3, "document.scrollingElement.scrollTop = 100");
     65  checkLastEntry(entries, 1, [8, 108, -42, 58, 8, 108, 0, 58, 0, vw, 0, vh, true]);
     66 }
     67 
     68 function step3() {
     69  checkLastEntry(entries, 2, [8, 108, -42, 58, 0, 0, 0, 0, 0, vw, 0, vh, false]);
     70  document.scrollingElement.scrollTop = 0;
     71 }
     72 </script>