gecko/toolkit/content/tests/browser/browser_bug295977_autoscroll_overflow.js

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function test()
{
const kPrefName_AutoScroll = "general.autoScroll";
Services.prefs.setBoolPref(kPrefName_AutoScroll, true);
const expectScrollNone = 0;
const expectScrollVert = 1;
const expectScrollHori = 2;
const expectScrollBoth = 3;
var allTests = [
{elem: 'a', expected: expectScrollNone},
{elem: 'b', expected: expectScrollBoth},
{elem: 'c', expected: expectScrollHori},
{elem: 'd', expected: expectScrollVert},
{elem: 'e', expected: expectScrollVert},
{elem: 'f', expected: expectScrollNone},
{elem: 'g', expected: expectScrollBoth},
{elem: 'h', expected: expectScrollNone}
];
var doc;
function nextTest() {
var test = allTests.shift();
if (!test) {
endTest();
return;
}
var elem = doc.getElementById(test.elem);
// Skip the first callback as it's the same callback that the browser
// uses to kick off the scrolling.
var skipFrames = 1;
var checkScroll = function () {
if (skipFrames--) {
window.mozRequestAnimationFrame(checkScroll);
return;
}
EventUtils.synthesizeKey("VK_ESCAPE", {}, gBrowser.contentWindow);
var scrollVert = test.expected & expectScrollVert;
ok((scrollVert && elem.scrollTop > 0) ||
(!scrollVert && elem.scrollTop == 0),
test.elem+' should'+(scrollVert ? '' : ' not')+' have scrolled vertically');
var scrollHori = test.expected & expectScrollHori;
ok((scrollHori && elem.scrollLeft > 0) ||
(!scrollHori && elem.scrollLeft == 0),
test.elem+' should'+(scrollHori ? '' : ' not')+' have scrolled horizontally');
nextTest();
};
EventUtils.synthesizeMouse(elem, 50, 50, { button: 1 },
gBrowser.contentWindow);
var iframe = gBrowser.contentDocument.getElementById("iframe");
var e = iframe.contentDocument.createEvent("pagetransition");
e.initPageTransitionEvent("pagehide", true, true, false);
iframe.contentDocument.dispatchEvent(e);
iframe.contentDocument.documentElement.dispatchEvent(e);
EventUtils.synthesizeMouse(elem, 100, 100,
{ type: "mousemove", clickCount: "0" },
gBrowser.contentWindow);
/*
* if scrolling didnt work, we wouldnt do any redraws and thus time out.
* so request and force redraws to get the chance to check for scrolling at
* all.
*/
window.mozRequestAnimationFrame(checkScroll);
}
waitForExplicitFinish();
var dataUri = 'data:text/html,<body><style type="text/css">div { display: inline-block; }</style>\
<div id="a" style="width: 100px; height: 100px; overflow: hidden;"><div style="width: 200px; height: 200px;"></div></div>\
<div id="b" style="width: 100px; height: 100px; overflow: auto;"><div style="width: 200px; height: 200px;"></div></div>\
<div id="c" style="width: 100px; height: 100px; overflow-x: auto; overflow-y: hidden;"><div style="width: 200px; height: 200px;"></div></div>\
<div id="d" style="width: 100px; height: 100px; overflow-y: auto; overflow-x: hidden;"><div style="width: 200px; height: 200px;"></div></div>\
<select id="e" style="width: 100px; height: 100px;" multiple="multiple"><option>aaaaaaaaaaaaaaaaaaaaaaaa</option><option>a</option><option>a</option>\
<option>a</option><option>a</option><option>a</option><option>a</option><option>a</option><option>a</option><option>a</option>\
<option>a</option><option>a</option><option>a</option><option>a</option><option>a</option><option>a</option><option>a</option></select>\
<select id="f" style="width: 100px; height: 100px;"><option>a</option><option>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</option><option>a</option>\
<option>a</option><option>a</option><option>a</option><option>a</option><option>a</option><option>a</option><option>a</option>\
<option>a</option><option>a</option><option>a</option><option>a</option><option>a</option><option>a</option><option>a</option></select>\
<div id="g" style="width: 99px; height: 99px; padding: 10px; border: 10px solid black; margin: 10px; overflow: auto;"><div style="width: 100px; height: 100px; margin: 10px;"></div></div>\
<div id="h" style="width: 100px; height: 100px; overflow: -moz-hidden-unscrollable;"><div style="width: 200px; height: 200px;"></div></div>\
<iframe id="iframe" style="display: none;"></iframe>\
</body>';
gBrowser.selectedBrowser.addEventListener("pageshow", onLoad, false);
gBrowser.loadURI(dataUri);
function onLoad() {
gBrowser.selectedBrowser.removeEventListener("pageshow", onLoad, false);
waitForFocus(onFocus, content);
}
function onFocus() {
doc = gBrowser.contentDocument;
nextTest();
}
function endTest() {
// restore the changed prefs
if (Services.prefs.prefHasUserValue(kPrefName_AutoScroll))
Services.prefs.clearUserPref(kPrefName_AutoScroll);
// cleaning-up
gBrowser.addTab("about:blank");
gBrowser.removeCurrentTab();
// waitForFocus() fixes a failure in the next test if the latter runs too soon.
waitForFocus(finish);
}
}