electron/docs/api/tray.md
2014-06-23 22:58:42 +08:00

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# tray
A `Tray` represents an icon in operating system's notification area, it is
usually attached with a context menu.
```javascript
var app = require('app');
var Menu = require('menu');
var Tray = require('tray');
var appIcon = null;
app.on('ready', function(){
appIcon = new Tray('/path/to/my/icon');
var contextMenu = Menu.buildFromTemplate([
{ label: 'Item1', type: 'radio' },
{ label: 'Item2', type: 'radio' },
{ label: 'Item3', type: 'radio', clicked: true },
{ label: 'Item4', type: 'radio' },
]);
appIcon.setToolTip('This is my application.');
appIcon.setContextMenu(contextMenu);
});
```
__Platform limitations:__
* On OS X `clicked` event will be ignored if the tray icon has context menu.
* On Linux app indicator will be used if it is supported, otherwise
`GtkStatusIcon` will be used instead.
* App indicator will only be showed when it has context menu.
* When app indicator is used on Linux, `clicked` event is ignored.
So if you want to keep exact same behaviors on all platforms, you should not
rely on `clicked` event and always attach a context menu to the tray icon.
## Class: Tray
`Tray` is an [EventEmitter](event-emitter).
### new Tray(image)
* `image` [Image](image.md)
Creates a new tray icon associated with the `image`.
### Event: 'clicked'
Emitted when the tray icon is clicked.
### Tray.setImage(image)
* `image` [Image](image.md)
Sets the `image` associated with this tray icon.
### Tray.setPressedImage(image)
* `image` [Image](image.md)
Sets the `image` associated with this tray icon when pressed.
### Tray.setToolTip(toolTip)
* `toolTip` String
### Tray.setContextMenu(menu)
* `menu` Menu
[event-emitter]: http://nodejs.org/api/events.html#events_class_events_eventemitter