The Tor Browser: toolkit/content/tests/chrome/test_mousescroll.xul@6474c204b198 (annotated)

toolkit/content/tests/chrome/test_mousescroll.xul@6474c204b198 (annotated)

toolkit/content/tests/chrome/test_mousescroll.xul

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 <?xml version="1.0"?>
 <?xml-stylesheet href="chrome://global/skin" type="text/css"?>
 <?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>
 <!--
 https://bugzilla.mozilla.org/show_bug.cgi?id=378028
 -->
 <window title="Mozilla Bug 378028"
   xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
   <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
   <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"/>
   <!-- test results are displayed in the html:body -->
   <body xmlns="http://www.w3.org/1999/xhtml">
   <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=378028"
      target="_blank">Mozilla Bug 378028</a>
   </body>
   <!-- richlistbox currently has no way of giving us a defined number of
        rows, so we just choose an arbitrary height limit that should give
        us plenty of vertical scrollability -->
   <richlistbox id="richlistbox" style="height:50px;">
     <richlistitem id="richlistbox_item0" hidden="true"><label value="Item 0"/></richlistitem>
     <richlistitem id="richlistbox_item1"><label value="Item 1"/></richlistitem>
     <richlistitem id="richlistbox_item2"><label value="Item 2"/></richlistitem>
     <richlistitem id="richlistbox_item3"><label value="Item 3"/></richlistitem>
     <richlistitem id="richlistbox_item4"><label value="Item 4"/></richlistitem>
     <richlistitem id="richlistbox_item5"><label value="Item 5"/></richlistitem>
     <richlistitem id="richlistbox_item6"><label value="Item 6"/></richlistitem>
     <richlistitem id="richlistbox_item7"><label value="Item 7"/></richlistitem>
     <richlistitem id="richlistbox_item8"><label value="Item 8"/></richlistitem>
   </richlistbox>
   <listbox id="listbox" rows="2">
     <listitem id="listbox_item0" label="Item 0" hidden="true"/>
     <listitem id="listbox_item1" label="Item 1"/>
     <listitem id="listbox_item2" label="Item 2"/>
     <listitem id="listbox_item3" label="Item 3"/>
     <listitem id="listbox_item4" label="Item 4"/>
     <listitem id="listbox_item5" label="Item 5"/>
     <listitem id="listbox_item6" label="Item 6"/>
     <listitem id="listbox_item7" label="Item 7"/>
     <listitem id="listbox_item8" label="Item 8"/>
   </listbox>
   <box orient="horizontal">
     <arrowscrollbox id="hscrollbox" clicktoscroll="true" orient="horizontal"
      smoothscroll="false" style="max-width:80px;" flex="1">
       <hbox style="width:40px; height:20px; background:black;" hidden="true"/>
       <hbox style="width:40px; height:20px; background:white;"/>
       <hbox style="width:40px; height:20px; background:black;"/>
       <hbox style="width:40px; height:20px; background:white;"/>
       <hbox style="width:40px; height:20px; background:black;"/>
       <hbox style="width:40px; height:20px; background:white;"/>
       <hbox style="width:40px; height:20px; background:black;"/>
       <hbox style="width:40px; height:20px; background:white;"/>
       <hbox style="width:40px; height:20px; background:black;"/>
     </arrowscrollbox>
   </box>
   <arrowscrollbox id="vscrollbox" clicktoscroll="true" orient="vertical"
    smoothscroll="false" style="max-height:80px;" flex="1">
       <vbox style="width:100px; height:40px; background:black;" hidden="true"/>
       <vbox style="width:100px; height:40px; background:white;"/>
       <vbox style="width:100px; height:40px; background:black;"/>
       <vbox style="width:100px; height:40px; background:white;"/>
       <vbox style="width:100px; height:40px; background:black;"/>
       <vbox style="width:100px; height:40px; background:white;"/>
       <vbox style="width:100px; height:40px; background:black;"/>
       <vbox style="width:100px; height:40px; background:white;"/>
       <vbox style="width:100px; height:40px; background:black;"/>
       <vbox style="width:100px; height:40px; background:white;"/>
       <vbox style="width:100px; height:40px; background:black;"/>
   </arrowscrollbox>
   <!-- test code goes here -->
   <script type="application/javascript"><![CDATA[
 /** Test for Bug 378028 **/
 /*   and for Bug 350471 **/
 var smoothScrollPref = "general.smoothScroll";
 SpecialPowers.setBoolPref(smoothScrollPref, false);
 SimpleTest.waitForExplicitFinish();
 const deltaModes = [
   WheelEvent.DOM_DELTA_PIXEL,  // 0
   WheelEvent.DOM_DELTA_LINE,   // 1
   WheelEvent.DOM_DELTA_PAGE    // 2
 ];
 function testListbox(id)
 {
   var listbox = document.getElementById(id);
   function helper(aStart, aDelta, aIntDelta, aDeltaMode)
   {
     listbox.scrollToIndex(aStart);
     synthesizeWheel(listbox, 10, 10,
                     { deltaMode: aDeltaMode, deltaY: aDelta,
                       lineOrPageDeltaY: aIntDelta });
     var expectedPos = aStart;
     if (aIntDelta) {
       if (aDeltaMode == WheelEvent.DOM_DELTA_PAGE) {
         expectedPos += aIntDelta > 0 ? listbox.getNumberOfVisibleRows() :
                                        -listbox.getNumberOfVisibleRows();
       } else {
         expectedPos += aIntDelta;
       }
     }
     is(listbox.getIndexOfFirstVisibleRow(), expectedPos,
        "testListbox(" + id +  "): vertical, starting " + aStart +
          " delta " + aDelta + " lineOrPageDelta " + aIntDelta +
          " aDeltaMode " + aDeltaMode);
     // Check that horizontal scrolling has no effect
     listbox.scrollToIndex(aStart);
     synthesizeWheel(listbox, 10, 10,
                     { deltaMode: aDeltaMode, deltaX: aDelta,
                       lineOrPageDeltaX: aIntDelta });
     is(listbox.getIndexOfFirstVisibleRow(), aStart,
        "testListbox(" + id +  "): horizontal, starting " + aStart +
          " delta " + aDelta + " lineOrPageDelta " + aIntDelta +
          " aDeltaMode " + aDeltaMode);
   }
   deltaModes.forEach(function(aDeltaMode) {
     let delta = (aDeltaMode == WheelEvent.DOM_DELTA_PIXEL) ? 5.0 : 0.3;
     helper(5, -delta,  0, aDeltaMode);
     helper(5, -delta, -1, aDeltaMode);
     helper(5,  delta,  1, aDeltaMode);
     helper(5,  delta,  0, aDeltaMode);
   });
 }
 function testRichListbox(id, andThen)
 {
   var listbox = document.getElementById(id);
   var tests = [];
   var winUtils = SpecialPowers.getDOMWindowUtils(window);
   winUtils.advanceTimeAndRefresh(100);
   function helper()
   {
     var [aStart, aDelta, aIntDelta, aDeltaMode] = tests[0];
     tests.shift();
     listbox.scrollToIndex(aStart);
     synthesizeWheel(listbox, 10, 10,
                     { deltaMode: aDeltaMode, deltaY: aDelta,
                       lineOrPageDeltaY: aIntDelta });
     winUtils.advanceTimeAndRefresh(100);
     var change = listbox.getIndexOfFirstVisibleRow() - aStart;
     var direction = (change > 0) - (change < 0);
     var expected = (aDelta > 0) - (aDelta < 0);
     is(direction, expected,
      "testRichListbox(" + id +  "): vertical, starting " + aStart +
        " delta " + aDelta + " lineOrPageDelta " + aIntDelta +
        " aDeltaMode " + aDeltaMode);
     // Check that horizontal scrolling has no effect
     listbox.scrollToIndex(aStart);
     synthesizeWheel(listbox, 10, 10,
                     { deltaMode: aDeltaMode, deltaX: aDelta,
                       lineOrPageDeltaX: aIntDelta });
     winUtils.advanceTimeAndRefresh(100);
     is(listbox.getIndexOfFirstVisibleRow(), aStart,
        "testRichListbox(" + id +  "): horizontal, starting " + aStart +
          " delta " + aDelta + " lineOrPageDelta " + aIntDelta +
          " aDeltaMode " + aDeltaMode);
     if (tests.length) {
       winUtils.advanceTimeAndRefresh(100);
       helper();
     } else {
       winUtils.restoreNormalRefresh();
       andThen();
     }
   }
   // richlistbox currently uses native XUL scrolling, so the "line"
   // amounts don't necessarily correspond 1-to-1 with listbox items. So
   // we just check that scrolling up/down scrolls in the right direction.
   deltaModes.forEach(function(aDeltaMode) {
     let delta = (aDeltaMode == WheelEvent.DOM_DELTA_PIXEL) ? 32.0 : 2.0;
     tests.push([5, -delta, -1, aDeltaMode]);
     tests.push([5, -delta,  0, aDeltaMode]);
     tests.push([5,  delta,  1, aDeltaMode]);
     tests.push([5,  delta,  0, aDeltaMode]);
   });
   helper();
 }
 function testArrowScrollbox(id)
 {
   var scrollbox = document.getElementById(id);
   var scrollBoxObject = scrollbox.scrollBoxObject;
   var orient = scrollbox.getAttribute("orient");
   function helper(aStart, aDelta, aIntDelta, aDeltaMode, aExpected)
   {
     var xpos = {};
     var ypos = {};
     var orientIsHorizontal = (orient == "horizontal");
     var pos = orientIsHorizontal ? xpos : ypos;
     scrollBoxObject.scrollTo(aStart, aStart);
     for (var i = orientIsHorizontal ? 2 : 0; i >= 0; i--) {
       synthesizeWheel(scrollbox, 5, 5,
                       { deltaMode: aDeltaMode, deltaY: aDelta,
                         lineOrPageDeltaY: aIntDelta });
       scrollBoxObject.getPosition(xpos, ypos);
       // Note, vertical mouse scrolling is allowed to scroll horizontal
       // arrowscrollboxes, because many users have no horizontal mouse scroll
       // capability
       let expected = !i ? aExpected : aStart;
       is(pos.value, expected,
          "testArrowScrollbox(" + id +  "): vertical, starting " + aStart +
            " delta " + aDelta + " lineOrPageDelta " + aIntDelta +
            " aDeltaMode " + aDeltaMode);
     }
     scrollBoxObject.scrollTo(aStart, aStart);
     for (var i = orientIsHorizontal ? 2 : 0; i >= 0; i--) {
       synthesizeWheel(scrollbox, 5, 5,
                       { deltaMode: aDeltaMode, deltaX: aDelta,
                         lineOrPageDeltaX: aIntDelta });
       // horizontal mouse scrolling is never allowed to scroll vertical
       // arrowscrollboxes
       scrollBoxObject.getPosition(xpos, ypos);
       let expected = (!i && orientIsHorizontal) ? aExpected : aStart;
       is(pos.value, expected,
          "testArrowScrollbox(" + id +  "): horizontal, starting " + aStart +
            " delta " + aDelta + " lineOrPageDelta " + aIntDelta +
            " aDeltaMode " + aDeltaMode);
     }
   }
   var scrolledWidth = {};
   var scrolledHeight = {};
   scrollBoxObject.getScrolledSize(scrolledWidth, scrolledHeight);
   var scrollMaxX = scrolledWidth.value - scrollBoxObject.width;
   var scrollMaxY = scrolledHeight.value - scrollBoxObject.height;
   var scrollMax = orient == "horizontal" ? scrollMaxX : scrollMaxY;
   deltaModes.forEach(function(aDeltaMode) {
     // These lineOrPageDelta values are not realistic.  However, it's enough to
     // test if it's scrolled by the lineOrPageDelta value.
     let delta = (aDeltaMode == WheelEvent.DOM_DELTA_PIXEL) ? 5.0 : 0.3;
     helper(50, -delta, -100, aDeltaMode, 0);
     helper(50,  delta,  100, aDeltaMode, scrollMax);
     helper(50, -delta,    0, aDeltaMode, 50);
     helper(50,  delta,    0, aDeltaMode, 50);
   });
 }
 function runTests()
 {
   testRichListbox("richlistbox", function() {
     testListbox("listbox");
     testArrowScrollbox("hscrollbox");
     testArrowScrollbox("vscrollbox");
     SpecialPowers.clearUserPref(smoothScrollPref);
     SimpleTest.finish();
   });
 }
 window.onload = function() { setTimeout(runTests, 0); };
   ]]></script>
 </window>

The Tor Browser / annotate

toolkit/content/tests/chrome/test_mousescroll.xul@6474c204b198 (annotated)

toolkit/content/tests/chrome/test_mousescroll.xul