gecko/browser/components/tabview/test/browser_tabview_bug634672.js

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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
function test() {
let cw;
let win;
waitForExplicitFinish();
newWindowWithTabView(function (tvwin) {
win = tvwin;
cw = win.TabView.getContentWindow();
registerCleanupFunction(function () {
if (win && !win.closed)
win.close();
});
// fill the group item with some tabs
for (let i = 0; i < 5; i++)
win.gBrowser.loadOneTab("about:blank");
let groupItem = cw.GroupItems.groupItems[0];
groupItem.setSize(400, 400, true);
let range = new cw.Range(1, 400);
// determine the groupItem's largest possible stacked size
while (range.extent > 1) {
let pivot = Math.floor(range.extent / 2);
groupItem.setSize(range.min + pivot, range.min + pivot, true);
if (groupItem.isStacked())
range.min += pivot;
else
range.max -= pivot;
}
// stack the group
groupItem.setSize(range.min, range.min, true);
ok(groupItem.isStacked(), "groupItem is stacked");
// one step back to un-stack the groupItem
groupItem.setSize(range.max, range.max, true);
ok(!groupItem.isStacked(), "groupItem is no longer stacked");
// check that close buttons are visible
let tabItem = groupItem.getChild(0);
isnot(tabItem.$close.css("display"), "none", "close button is visible");
finish();
});
}