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 = SpecialPowers.Services.prefs;
  81 const kPrefSmoothScroll = "general.smoothScroll";
  82 const kPrefNameTimeout = "mousewheel.transaction.timeout";
  83 const kDefaultTimeout = gPrefSvc.getIntPref(kPrefNameTimeout);
  84
  85 gPrefSvc.setBoolPref(kPrefSmoothScroll, false);
  86
  87 var gTimeout = kDefaultTimeout;
  88
  89 gBody.addEventListener("MozMouseScrollFailed", onMouseScrollFailed);
  90 gBody.addEventListener("MozMouseScrollTransactionTimeout",
  91                        onTransactionTimeout);
  92
  93 function setTimeoutPrefs(aTimeout)
  94 {
  95   gPrefSvc.setIntPref(kPrefNameTimeout, aTimeout);
  96   gTimeout = aTimeout;
  97 }
  98
  99 function resetTimeoutPrefs()
 100 {
 101   if (gTimeout == kDefaultTimeout)
 102     return;
 103   setTimeoutPrefs(kDefaultTimeout);
 104 }
 105
 106 function growUpTimeoutPrefs()
 107 {
 108   if (gTimeout != kDefaultTimeout)
 109     return;
 110   setTimeoutPrefs(5000);
 111 }
 112
 113 function onload()
 114 {
 115   disableNonTestMouseEvents(true);
 116   setTimeout(runNextTest, 0);
 117 }
 118
 119 function onunload()
 120 {
 121   resetTimeoutPrefs();
 122   disableNonTestMouseEvents(false);
 123   gPrefSvc.clearUserPref(kPrefSmoothScroll);
 124   SpecialPowers.DOMWindowUtils.restoreNormalRefresh();
 125   window.arguments[0].SimpleTest.finish();
 126 }
 127
 128 function finish()
 129 {
 130   window.close();
 131 }
 132
 133 // testing code
 134
 135 var gTimer;
 136 function clearTimer()
 137 {
 138   clearTimeout(gTimer);
 139   gTimer = 0;
 140 }
 141
 142 function runNextTest()
 143 {
 144   clearTimer();
 145   if (++gCurrentTestIndex >= gTests.length) {
 146     ok(true, "didn't crash, succeeded");
 147     finish();
 148     return;
 149   }
 150   fireWheelScrollEvent(gTests[gCurrentTestIndex].scrollToForward);
 151 }
 152
 153 var gRetryCount = 5;
 154 function retryAllTests()
 155 {
 156   clearTimer();
 157   if (--gRetryCount >= 0) {
 158     gView.scrollTop = 0;
 159     gView.scrollLeft = 0;
 160     gCurrentTestIndex = -1;
 161     growUpTimeoutPrefs();
 162     ok(true, "WARNING: retry current test-list...");
 163     gTimer = setTimeout(runNextTest, 0);
 164   } else {
 165     ok(false, "Failed by unexpected timeout");
 166     finish();
 167   }
 168 }
 169
 170 function fireWheelScrollEvent(aForward)
 171 {
 172   gIgnoreScrollEvent = false;
 173   var event = { deltaY: aForward ? 4.0 : -4.0,
 174                 deltaMode: WheelEvent.DOM_DELTA_LINE };
 175   sendWheelAndPaint(gView, 5, 5, event, function() {
 176     // No callback - we're just forcing the refresh driver to tick.
 177   }, window);
 178 }
 179
 180 function onScrollView(aEvent)
 181 {
 182   if (gIgnoreScrollEvent)
 183     return;
 184   gIgnoreScrollEvent = true;
 185   clearTimer();
 186   ok(gTests[gCurrentTestIndex].shouldScroll, "The view is scrolled");
 187   gTimer = setTimeout(runNextTest, 0);
 188 }
 189
 190 function onMouseScrollFailed(aEvent)
 191 {
 192   clearTimer();
 193   gIgnoreScrollEvent = true;
 194   ok(!gTests[gCurrentTestIndex].shouldScroll, "The view is not scrolled");
 195   if (!gTests[gCurrentTestIndex].shouldScroll)
 196     gBody.removeChild(gView);
 197   runNextTest();
 198 }
 199
 200 function onTransactionTimeout(aEvent)
 201 {
 202   if (!gTimer)
 203     return;
 204   gIgnoreScrollEvent = true;
 205   retryAllTests();
 206 }
 207
 208 ]]>
 209 </script>
 210
 211 </window>