michael@0: const DG_BACKGROUND = "/desktop/gnome/background"
michael@0: const DG_IMAGE_KEY = DG_BACKGROUND + "/picture_filename";
michael@0: const DG_OPTION_KEY = DG_BACKGROUND + "/picture_options";
michael@0: const DG_DRAW_BG_KEY = DG_BACKGROUND + "/draw_background";
michael@0: 
michael@0: function onPageLoad() {
michael@0:   gBrowser.selectedBrowser.removeEventListener("load", onPageLoad, true);
michael@0: 
michael@0:   var bs = Cc["@mozilla.org/intl/stringbundle;1"].
michael@0:            getService(Ci.nsIStringBundleService);
michael@0:   var brandName = bs.createBundle("chrome://branding/locale/brand.properties").
michael@0:                   GetStringFromName("brandShortName");
michael@0: 
michael@0:   var dirSvc = Cc["@mozilla.org/file/directory_service;1"].
michael@0:                getService(Ci.nsIDirectoryServiceProvider);
michael@0:   var homeDir = dirSvc.getFile("Home", {});
michael@0: 
michael@0:   var wpFile = homeDir.clone();
michael@0:   wpFile.append(brandName + "_wallpaper.png");
michael@0: 
michael@0:   // Backup the existing wallpaper so that this test doesn't change the user's
michael@0:   // settings.
michael@0:   var wpFileBackup = homeDir.clone()
michael@0:   wpFileBackup.append(brandName + "_wallpaper.png.backup");
michael@0: 
michael@0:   if (wpFileBackup.exists())
michael@0:     wpFileBackup.remove(false);
michael@0: 
michael@0:   if (wpFile.exists())
michael@0:     wpFile.copyTo(null, wpFileBackup.leafName);
michael@0: 
michael@0:   var shell = Cc["@mozilla.org/browser/shell-service;1"].
michael@0:               getService(Ci.nsIShellService);
michael@0:   var gconf = Cc["@mozilla.org/gnome-gconf-service;1"].
michael@0:               getService(Ci.nsIGConfService);
michael@0: 
michael@0:   var prevImageKey = gconf.getString(DG_IMAGE_KEY);
michael@0:   var prevOptionKey = gconf.getString(DG_OPTION_KEY);
michael@0:   var prevDrawBgKey = gconf.getBool(DG_DRAW_BG_KEY);
michael@0: 
michael@0:   var image = content.document.images[0];
michael@0: 
michael@0:   function checkWallpaper(position, expectedGConfPosition) {
michael@0:     shell.setDesktopBackground(image, position);
michael@0:     ok(wpFile.exists(), "Wallpaper was written to disk");
michael@0:     is(gconf.getString(DG_IMAGE_KEY), wpFile.path,
michael@0:        "Wallpaper file GConf key is correct");
michael@0:     is(gconf.getString(DG_OPTION_KEY), expectedGConfPosition,
michael@0:        "Wallpaper position GConf key is correct");
michael@0:   }
michael@0: 
michael@0:   checkWallpaper(Ci.nsIShellService.BACKGROUND_TILE, "wallpaper");
michael@0:   checkWallpaper(Ci.nsIShellService.BACKGROUND_STRETCH, "stretched");
michael@0:   checkWallpaper(Ci.nsIShellService.BACKGROUND_CENTER, "centered");
michael@0:   checkWallpaper(Ci.nsIShellService.BACKGROUND_FILL, "zoom");
michael@0:   checkWallpaper(Ci.nsIShellService.BACKGROUND_FIT, "scaled");
michael@0: 
michael@0:   // Restore GConf and wallpaper
michael@0: 
michael@0:   gconf.setString(DG_IMAGE_KEY, prevImageKey);
michael@0:   gconf.setString(DG_OPTION_KEY, prevOptionKey);
michael@0:   gconf.setBool(DG_DRAW_BG_KEY, prevDrawBgKey);
michael@0: 
michael@0:   wpFile.remove(false);
michael@0:   if (wpFileBackup.exists())
michael@0:     wpFileBackup.moveTo(null, wpFile.leafName);
michael@0: 
michael@0:   gBrowser.removeCurrentTab();
michael@0:   finish();
michael@0: }
michael@0: 
michael@0: function test() {
michael@0:   var osString = Cc["@mozilla.org/xre/app-info;1"].
michael@0:                  getService(Ci.nsIXULRuntime).OS;
michael@0:   if (osString != "Linux") {
michael@0:     todo(false, "This test is Linux specific for now.");
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   try {
michael@0:     // If GSettings is available, then the GConf tests
michael@0:     // will fail
michael@0:     var gsettings = Cc["@mozilla.org/gsettings-service;1"].
michael@0:                     getService(Ci.nsIGSettingsService).
michael@0:                     getCollectionForSchema("org.gnome.desktop.background");
michael@0:     todo(false, "This test doesn't work when GSettings is available");
michael@0:     return;
michael@0:   } catch(e) { }
michael@0: 
michael@0:   gBrowser.selectedTab = gBrowser.addTab();
michael@0:   gBrowser.selectedBrowser.addEventListener("load", onPageLoad, true);
michael@0:   content.location = "about:logo";
michael@0: 
michael@0:   waitForExplicitFinish();
michael@0: }