The Services.jsm 模块提供了一系列的javascript模块,用来简化各种常用的操作.
在使用它们之前,你必须首先将Services模块导入到自己的作用域内:
Components.utils.import("resource://gre/modules/Services.jsm");
然后你可以通过服务访问器来轻松的从Services对象导出所需要的模块. 例如,要想获取一个preferences服务,你可以用下面的语句:
var prefsService = Services.prefs;
服务访问器
| 服务访问器 | 服务接口 | 服务名 |
appinfo | nsIXULAppInfonsIXULRuntime | Application information service |
console | nsIConsoleService | Error console service |
contentPrefs | nsIContentPrefService | Content Preferences service |
cookies | nsICookieManager2 | Cookie Manager 2 service |
dirsvc | nsIDirectoryServicensIProperties | Directory service |
droppedLinkHandler | nsIDroppedLinkHandler | Dropped link handler service |
eTLD | nsIEffectiveTLDService | EffectiveTLD service |
io | nsIIOServicensIIOService2 | I/O Service |
locale | nsILocaleService | Locale service |
logins | nsILoginManager | Password Manager service |
obs | nsIObserverService | Observer service |
perms | nsIPermissionManager | Permission manager service |
prefs | nsIPrefBranchnsIPrefBranch2nsIPrefService | Preferences service |
prompt | nsIPromptService | Prompt service |
scriptloader | mozIJSSubScriptLoader | JavaScript subscript loader service |
search | nsIBrowserSearchService | Browser search service1 |
startup | nsIAppStartup | Application startup service |
storage | mozIStorageService | Storage API service |
strings | nsIStringBundleService | String bundle service |
sysinfo | nsIPropertyBag2 | System info service |
telemetry | nsITelemetry | Telemetry service |
tm | nsIThreadManager | Thread Manager service |
urlFormatter | nsIURLFormatter | URL Formatter service |
vc | nsIVersionComparator | Version comparator service |
wm | nsIWindowMediator | Window mediator service |
ww | nsIWindowWatcher | Window watcher service |
DOMRequest | nsIDOMRequestService | DOMRequest service |
cpmm | nsIFrameMessageManager | Child Process Message Manager |
| ppmm | nsIFrameMessageManager | Parent Process Message Manager |
Thunderbird 和 SeaMonkey中该特性不可用.