widget/tests/window_bug478536.xhtml

   1 <?xml version="1.0"?>
   2 <?xml-stylesheet href="chrome://global/skin" type="text/css"?>
   3 <window title="Mozilla Bug 478536"
   4   width="600" height="600"
   5   onload="onload();"
   6   onunload="onunload();"
   7   xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
   8
   9   <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js" />
  10   <script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js" />
  11   <script src="chrome://mochikit/content/tests/SimpleTest/paint_listener.js" />
  12
  13 <body xmlns="http://www.w3.org/1999/xhtml" id="body">
  14 <style type="text/css">
  15   #view {
  16     overflow: auto;
  17     width: 100px;
  18     height: 100px;
  19     border: 1px solid;
  20     margin: 0;
  21   }
  22 </style>
  23 <pre id="view" onscroll="onScrollView(event);">
  24 Text. Text. Text. Text. Text. Text. Text. Text. Text. Text. Text.
  25 Text. Text. Text. Text. Text. Text. Text. Text. Text. Text. Text.
  26 Text. Text. Text. Text. Text. Text. Text. Text. Text. Text. Text.
  27 Text. Text. Text. Text. Text. Text. Text. Text. Text. Text. Text.
  28 Text. Text. Text. Text. Text. Text. Text. Text. Text. Text. Text.
  29 Text. Text. Text. Text. Text. Text. Text. Text. Text. Text. Text.
  30 Text. Text. Text. Text. Text. Text. Text. Text. Text. Text. Text.
  31 Text. Text. Text. Text. Text. Text. Text. Text. Text. Text. Text.
  32 Text. Text. Text. Text. Text. Text. Text. Text. Text. Text. Text.
  33 Text. Text. Text. Text. Text. Text. Text. Text. Text. Text. Text.
  34 </pre>
  35 </body>
  36
  37 <script class="testbody" type="application/javascript">
  38 <![CDATA[
  39
  40 function ok(aCondition, aMessage)
  41 {
  42   window.arguments[0].SimpleTest.ok(aCondition, aMessage);
  43 }
  44
  45 function is(aLeft, aRight, aMessage)
  46 {
  47   window.arguments[0].SimpleTest.is(aLeft, aRight, aMessage);
  48 }
  49
  50 function isnot(aLeft, aRight, aMessage)
  51 {
  52   window.arguments[0].SimpleTest.isnot(aLeft, aRight, aMessage);
  53 }
  54
  55 var gBody = document.getElementById("body");
  56 var gView = document.getElementById("view");
  57
  58 /**
  59  * Description:
  60  *
  61  *   First, lock the wheel scrolling target to "view" at first step.
  62  *   Next, scroll back to top most of the "view" at second step.
  63  *   Finally, scroll back again at third step.  This fails to scroll the "view",
  64  *   then, |onMouseScrollFailed| event should be fired.  And at that time, we
  65  *   can remove the "view".  So, in post processing of the event firere, the
  66  *   "view" should not be referred.
  67  *
  68  *   For suppressing random test failure, all tests will be retried if we handle
  69  *   unexpected timeout event.
  70  */
  71
  72 var gTests = [
  73  { scrollToForward: true,  shouldScroll: true },
  74  { scrollToForward: false, shouldScroll: true },
  75  { scrollToForward: false, shouldScroll: false }
  76 ];
  77 var gCurrentTestIndex = -1;
  78 var gIgnoreScrollEvent = true;
  79
  80 var gPrefSvc = Cc["@mozilla.org/preferences-service;1"].
  81                getService(Ci.nsIPrefBranch);
  82 const kPrefSmoothScroll = "general.smoothScroll";
  83 const kPrefNameTimeout = "mousewheel.transaction.timeout";
  84 const kDefaultTimeout = gPrefSvc.getIntPref(kPrefNameTimeout);
  85
  86 gPrefSvc.setBoolPref(kPrefSmoothScroll, false);
  87
  88 var gTimeout = kDefaultTimeout;
  89
  90 gBody.addEventListener("MozMouseScrollFailed", onMouseScrollFailed, false);
  91 gBody.addEventListener("MozMouseScrollTransactionTimeout",
  92                        onTransactionTimeout, false);
  93
  94 function setTimeoutPrefs(aTimeout)
  95 {
  96   gPrefSvc.setIntPref(kPrefNameTimeout, aTimeout);
  97   gTimeout = aTimeout;
  98 }
  99
 100 function resetTimeoutPrefs()
 101 {
 102   if (gTimeout == kDefaultTimeout)
 103     return;
 104   setTimeoutPrefs(kDefaultTimeout);
 105 }
 106
 107 function growUpTimeoutPrefs()
 108 {
 109   if (gTimeout != kDefaultTimeout)
 110     return;
 111   setTimeoutPrefs(5000);
 112 }
 113
 114 function onload()
 115 {
 116   disableNonTestMouseEvents(true);
 117   setTimeout(runNextTest, 0);
 118 }
 119
 120 function onunload()
 121 {
 122   resetTimeoutPrefs();
 123   disableNonTestMouseEvents(false);
 124   gPrefSvc.clearUserPref(kPrefSmoothScroll);
 125   SpecialPowers.DOMWindowUtils.restoreNormalRefresh();
 126   window.arguments[0].SimpleTest.finish();
 127 }
 128
 129 function finish()
 130 {
 131   window.close();
 132 }
 133
 134 // testing code
 135
 136 var gTimer;
 137 function clearTimer()
 138 {
 139   clearTimeout(gTimer);
 140   gTimer = 0;
 141 }
 142
 143 function runNextTest()
 144 {
 145   clearTimer();
 146   if (++gCurrentTestIndex >= gTests.length) {
 147     ok(true, "didn't crash, succeeded");
 148     finish();
 149     return;
 150   }
 151   fireWheelScrollEvent(gTests[gCurrentTestIndex].scrollToForward);
 152 }
 153
 154 var gRetryCount = 5;
 155 function retryAllTests()
 156 {
 157   clearTimer();
 158   if (--gRetryCount >= 0) {
 159     gView.scrollTop = 0;
 160     gView.scrollLeft = 0;
 161     gCurrentTestIndex = -1;
 162     growUpTimeoutPrefs();
 163     ok(true, "WARNING: retry current test-list...");
 164     gTimer = setTimeout(runNextTest, 0);
 165   } else {
 166     ok(false, "Failed by unexpected timeout");
 167     finish();
 168   }
 169 }
 170
 171 function fireWheelScrollEvent(aForward)
 172 {
 173   gIgnoreScrollEvent = false;
 174   var event = { deltaY: aForward ? 4.0 : -4.0,
 175                 deltaMode: WheelEvent.DOM_DELTA_LINE };
 176   sendWheelAndPaint(gView, 5, 5, event, function() {
 177     // No callback - we're just forcing the refresh driver to tick.
 178   }, window);
 179 }
 180
 181 function onScrollView(aEvent)
 182 {
 183   if (gIgnoreScrollEvent)
 184     return;
 185   gIgnoreScrollEvent = true;
 186   clearTimer();
 187   ok(gTests[gCurrentTestIndex].shouldScroll, "The view is scrolled");
 188   gTimer = setTimeout(runNextTest, 0);
 189 }
 190
 191 function onMouseScrollFailed(aEvent)
 192 {
 193   clearTimer();
 194   gIgnoreScrollEvent = true;
 195   ok(!gTests[gCurrentTestIndex].shouldScroll, "The view is not scrolled");
 196   if (!gTests[gCurrentTestIndex].shouldScroll)
 197     gBody.removeChild(gView);
 198   runNextTest();
 199 }
 200
 201 function onTransactionTimeout(aEvent)
 202 {
 203   if (!gTimer)
 204     return;
 205   gIgnoreScrollEvent = true;
 206   retryAllTests();
 207 }
 208
 209 ]]>
 210 </script>
 211
 212 </window>