126 lines
3.8 KiB
Markdown
126 lines
3.8 KiB
Markdown
# systemPreferences
|
|
|
|
> Get system preferences.
|
|
|
|
```javascript
|
|
const {systemPreferences} = require('electron')
|
|
console.log(systemPreferences.isDarkMode())
|
|
```
|
|
|
|
## Methods
|
|
|
|
### `systemPreferences.isDarkMode()` _macOS_
|
|
|
|
This method returns `true` if the system is in Dark Mode, and `false` otherwise.
|
|
|
|
### `systemPreferences.isSwipeTrackingFromScrollEventsEnabled()` _macOS_
|
|
|
|
This method returns `true` if the Swipe between pages setting is on, and `false` otherwise.
|
|
|
|
### `systemPreferences.postNotification(event, userInfo)` _macOS_
|
|
|
|
* `event` String
|
|
* `userInfo` Dictionary
|
|
|
|
Posts `event` as native notifications of macOS. The `userInfo` is an Object
|
|
that contains the user information dictionary sent along with the notification.
|
|
|
|
### `systemPreferences.postLocalNotification(event, userInfo)` _macOS_
|
|
|
|
* `event` String
|
|
* `userInfo` Dictionary
|
|
|
|
Posts `event` as native notifications of macOS. The `userInfo` is an Object
|
|
that contains the user information dictionary sent along with the notification.
|
|
|
|
### `systemPreferences.subscribeNotification(event, callback)` _macOS_
|
|
|
|
* `event` String
|
|
* `callback` Function
|
|
|
|
Subscribes to native notifications of macOS, `callback` will be called with
|
|
`callback(event, userInfo)` when the corresponding `event` happens. The
|
|
`userInfo` is an Object that contains the user information dictionary sent
|
|
along with the notification.
|
|
|
|
The `id` of the subscriber is returned, which can be used to unsubscribe the
|
|
`event`.
|
|
|
|
Under the hood this API subscribes to `NSDistributedNotificationCenter`,
|
|
example values of `event` are:
|
|
|
|
* `AppleInterfaceThemeChangedNotification`
|
|
* `AppleAquaColorVariantChanged`
|
|
* `AppleColorPreferencesChangedNotification`
|
|
* `AppleShowScrollBarsSettingChanged`
|
|
|
|
### `systemPreferences.unsubscribeNotification(id)` _macOS_
|
|
|
|
* `id` Integer
|
|
|
|
Removes the subscriber with `id`.
|
|
|
|
### `systemPreferences.subscribeLocalNotification(event, callback)` _macOS_
|
|
|
|
* `event` String
|
|
* `callback` Function
|
|
|
|
Same as `subscribeNotification`, but uses `NSNotificationCenter` for local defaults.
|
|
This is necessary for events such as `NSUserDefaultsDidChangeNotification`
|
|
|
|
### `systemPreferences.unsubscribeLocalNotification(id)` _macOS_
|
|
|
|
* `id` Integer
|
|
|
|
Same as `unsubscribeNotification`, but removes the subscriber from `NSNotificationCenter`.
|
|
|
|
### `systemPreferences.getUserDefault(key, type)` _macOS_
|
|
|
|
* `key` String
|
|
* `type` String - Can be `string`, `boolean`, `integer`, `float`, `double`,
|
|
`url`, `array`, `dictionary`
|
|
|
|
Get the value of `key` in system preferences.
|
|
|
|
This API reads from `NSUserDefaults` on macOS, some popular `key` and `type`s
|
|
are:
|
|
|
|
* `AppleInterfaceStyle: string`
|
|
* `AppleAquaColorVariant: integer`
|
|
* `AppleHighlightColor: string`
|
|
* `AppleShowScrollBars: string`
|
|
* `NSNavRecentPlaces: array`
|
|
* `NSPreferredWebServices: dictionary`
|
|
* `NSUserDictionaryReplacementItems: array`
|
|
|
|
### `systemPreferences.isAeroGlassEnabled()` _Windows_
|
|
|
|
This method returns `true` if [DWM composition][dwm-composition] (Aero Glass) is
|
|
enabled, and `false` otherwise.
|
|
|
|
An example of using it to determine if you should create a transparent window or
|
|
not (transparent windows won't work correctly when DWM composition is disabled):
|
|
|
|
```javascript
|
|
const {BrowserWindow, systemPreferences} = require('electron')
|
|
let browserOptions = {width: 1000, height: 800}
|
|
|
|
// Make the window transparent only if the platform supports it.
|
|
if (process.platform !== 'win32' || systemPreferences.isAeroGlassEnabled()) {
|
|
browserOptions.transparent = true
|
|
browserOptions.frame = false
|
|
}
|
|
|
|
// Create the window.
|
|
let win = new BrowserWindow(browserOptions)
|
|
|
|
// Navigate.
|
|
if (browserOptions.transparent) {
|
|
win.loadURL(`file://${__dirname}/index.html`)
|
|
} else {
|
|
// No transparency, so we load a fallback that uses basic styles.
|
|
win.loadURL(`file://${__dirname}/fallback.html`)
|
|
}
|
|
```
|
|
|
|
[dwm-composition]:https://msdn.microsoft.com/en-us/library/windows/desktop/aa969540.aspx
|