michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: function test() {
michael@0:   gPrefService.setBoolPref("browser.ctrlTab.previews", true);
michael@0: 
michael@0:   let [origTab] = gBrowser.visibleTabs;
michael@0:   let tabOne = gBrowser.addTab();
michael@0:   let tabTwo = gBrowser.addTab();
michael@0: 
michael@0:   // test the ctrlTab.tabList
michael@0:   pressCtrlTab();
michael@0:   ok(ctrlTab.tabList.length, 3, "Show 3 tabs in tab preview");
michael@0:   releaseCtrl();
michael@0: 
michael@0:   gBrowser.showOnlyTheseTabs([origTab]);
michael@0:   pressCtrlTab();
michael@0:   ok(ctrlTab.tabList.length, 1, "Show 1 tab in tab preview");
michael@0:   ok(!ctrlTab.isOpen, "With 1 tab open, Ctrl+Tab doesn't open the preview panel");
michael@0: 
michael@0:   gBrowser.showOnlyTheseTabs([origTab, tabOne, tabTwo]);
michael@0:   pressCtrlTab();
michael@0:   ok(ctrlTab.isOpen, "With 3 tabs open, Ctrl+Tab does open the preview panel");
michael@0:   releaseCtrl();
michael@0: 
michael@0:   // cleanup
michael@0:   gBrowser.removeTab(tabOne);
michael@0:   gBrowser.removeTab(tabTwo);
michael@0: 
michael@0:   if (gPrefService.prefHasUserValue("browser.ctrlTab.previews"))
michael@0:     gPrefService.clearUserPref("browser.ctrlTab.previews");
michael@0: }
michael@0: 
michael@0: function pressCtrlTab(aShiftKey) {
michael@0:   EventUtils.synthesizeKey("VK_TAB", { ctrlKey: true, shiftKey: !!aShiftKey });
michael@0: }
michael@0: 
michael@0: function releaseCtrl() {
michael@0:   EventUtils.synthesizeKey("VK_CONTROL", { type: "keyup" });
michael@0: }