michael@0: /* Any copyright is dedicated to the Public Domain.
michael@0:    http://creativecommons.org/publicdomain/zero/1.0/ */
michael@0: 
michael@0: function test() {
michael@0:   waitForExplicitFinish();
michael@0: 
michael@0:   newWindowWithTabView(function (win) {
michael@0:     registerCleanupFunction(function () win.close());
michael@0: 
michael@0:     for (let i = 0; i < 4; i++)
michael@0:       win.gBrowser.loadOneTab("about:blank", {inBackground: true});
michael@0: 
michael@0:     let cw = win.TabView.getContentWindow();
michael@0:     let groupItem = cw.GroupItems.groupItems[0];
michael@0:     let children = groupItem.getChildren();
michael@0: 
michael@0:     groupItem.setSize(200, 200, true);
michael@0:     ok(groupItem.isStacked(), "groupItem is now stacked");
michael@0:     is(win.gBrowser.tabs.length, 5, "we have five tabs");
michael@0: 
michael@0:     groupItem.addSubscriber("expanded", function onExpanded() {
michael@0:       groupItem.removeSubscriber("expanded", onExpanded);
michael@0: 
michael@0:       ok(groupItem.expanded, "groupItem is expanded");
michael@0:       let bounds = children[1].getBounds();
michael@0: 
michael@0:       // remove two tabs and see if the remaining tabs are re-arranged to fill
michael@0:       // the resulting gaps
michael@0:       for (let i = 0; i < 2; i++) {
michael@0:         EventUtils.synthesizeMouseAtCenter(children[1].container, {button: 1}, cw);
michael@0:         ok(bounds.equals(children[1].getBounds()), "tabItems were re-arranged");
michael@0:       }
michael@0: 
michael@0:       waitForFocus(finish);
michael@0:     });
michael@0: 
michael@0:     groupItem.expand();
michael@0:   });
michael@0: }