third_party/WebKit/LayoutTests/fast/events/event-fire-order.html

   1 <p>This page tests event listener fire order for a few objects that had it wrong in the past.</p>
   2 <p>If the test passes, you'll see a series of PASS messages below.</p>
   3
   4 <pre id="console"></pre>
   5
   6 <div id="div"></div>
   7
   8 <script>
   9 if (window.testRunner)
  10     testRunner.dumpAsText();
  11
  12 function log(s)
  13 {
  14     document.getElementById("console").appendChild(document.createTextNode(s + "\n"));
  15 }
  16
  17 var result;
  18
  19 function reset()
  20 {
  21     result = [ ];
  22 }
  23
  24 function f1()
  25 {
  26     result.push("f1");
  27 }
  28
  29 function f2(event)
  30 {
  31     result.push("f2");
  32     event.target.removeEventListener(event.type, f3, false); // Removed: should not fire.
  33     event.target.addEventListener(event.type, f4, false); // Added after dispatch began: should not fire.
  34 }
  35
  36 function f3()
  37 {
  38     result.push("f3");
  39 }
  40
  41 function f4()
  42 {
  43     result.push("f4");
  44 }
  45
  46 function reportResult(name, expected)
  47 {
  48     var passed = true;
  49     var end = result.length > expected.length ? result.length : expected.length;
  50     for (var i = 0; i < end; ++i) {
  51         if (result[i] != expected[i]) {
  52             log("FAIL: " + name + " result[" + i + "] should be " + expected[i] + " but instead is " + result[i] + ".");
  53             passed = false;
  54         }
  55     }
  56     if (passed)
  57         log("PASS: result should be " + expected + " and is.");
  58 }
  59
  60 var tests = [
  61     function testDiv()
  62     {
  63         reset();
  64         var x = document.getElementById("div");
  65         x.addEventListener("click", f1, false);
  66         x.onclick = f2;
  67         x.addEventListener("click", f3, false);
  68
  69         var event = document.createEvent("MouseEvent");
  70         event.initMouseEvent("click", true, true, document.defaultView, 1, 0, 0, 0, 0, false, false, false, false, 0, document);
  71         x.dispatchEvent(event);
  72
  73         reportResult(arguments.callee.name, [ "f1", "f2" ]);
  74     },
  75
  76     function testXHR()
  77     {
  78         reset();
  79         var x = new XMLHttpRequest;
  80         x.addEventListener("readystatechange", f1, false);
  81         x.onreadystatechange = f2;
  82         x.addEventListener("readystatechange", f3, false);
  83
  84         x.open("GET", "resources/does-not-exist");
  85
  86         reportResult(arguments.callee.name, [ "f1", "f2" ]);
  87     },
  88
  89     function testXHRUpload()
  90     {
  91         reset();
  92         var x = new XMLHttpRequest;
  93         x.upload.addEventListener("abort", f1, false);
  94         x.upload.onabort = f2;
  95         x.upload.addEventListener("abort", f3, false);
  96
  97         x.open("POST", "resources/does-not-exist");
  98         x.send();
  99         x.abort();
 100
 101         reportResult(arguments.callee.name, [ "f1", "f2" ]);
 102     }
 103 ];
 104
 105 for (var i = 0; i < tests.length; ++i)
 106     tests[i]();
 107 </script>