Class Application

Application

Represents a single desktop application entry with launch frequency tracking.

Fires

changed - Emitted when application properties change

Hierarchy (View Summary)

default
- Application

Implements

Disposable

Index

Accessors

app

get app(): DesktopAppInfo
The underlying DesktopAppInfo instance.

Returns DesktopAppInfo
- Defined in src/service/applications.ts:53

description

get description(): any
A short human-readable description of the application.

Returns any
- Defined in src/service/applications.ts:78

desktop

get desktop(): any
The desktop file ID (e.g. "org.gnome.Calculator.desktop").

Returns any
- Defined in src/service/applications.ts:73

executable

get executable(): any
The executable command from the desktop entry.

Returns any
- Defined in src/service/applications.ts:88

frequency

get frequency(): number
How many times this application has been launched.

Returns number
- Defined in src/service/applications.ts:58
set frequency(value: number): void
Parameters
- value: number
Returns void
- Defined in src/service/applications.ts:62

icon_name

get icon_name(): any
The icon name from the desktop entry.

Returns any
- Defined in src/service/applications.ts:93

isDisposed

get isDisposed(): boolean
Check if service has been disposed

Returns boolean
Inherited from Service.isDisposed
- Defined in src/service.ts:411

name

get name(): any
The display name of the application.

Returns any
- Defined in src/service/applications.ts:68

wm_class

get wm_class(): any
The WM_CLASS hint used for window matching.

Returns any
- Defined in src/service/applications.ts:83

Constructors

constructor

new Application(app: DesktopAppInfo, frequency?: number): Application
Parameters
- app: DesktopAppInfo
- Optionalfrequency: number
Returns Application
Overrides default.constructor
- Defined in src/service/applications.ts:97

Methods

bind

bind<Prop extends any>(
prop: Prop,
): Binding<Application, Prop, Application[Prop]>
Creates a Binding for a property on this service.
Type Parameters
- Prop extends any
Parameters
- prop: Prop
  The property to bind
Returns Binding<Application, Prop, Application[Prop]>
A Binding that can be used in widget constructors
Example
```
const label = Widget.Label({
    label: audio.bind('volume').as(v => `${Math.round(v * 100)}%`),
});
```
Inherited from default.bind
- Defined in src/service.ts:348

changed

changed(property: string): void
Notifies listeners that a property changed and emits the 'changed' signal.
Parameters
- property: string
  The property name that changed
Returns void
Inherited from default.changed
- Defined in src/service.ts:330

connect

connect(signal?: string, callback: (_: this, ...args: any[]) => void): number
Connects a callback to a signal on this service.
Parameters
- signal: string = 'changed'
  The signal name (defaults to 'changed')
- callback: (_: this, ...args: any[]) => void
  The callback to invoke when the signal is emitted
Returns number
The signal connection ID
Inherited from default.connect
- Defined in src/service.ts:272

diffBind

diffBind<Item, Prop extends any>(
    prop: Prop,
    opts: {
        create: (item: Item) => Widget;
        key: (item: Item) => string | number;
        update?: (widget: Widget, item: Item) => void;
    },
): Binding<Application, Prop, Widget[]>
Creates an incremental list binding that reuses existing widgets.

Instead of recreating all widgets on every update, this method caches widgets by a key function and only creates new widgets for new items, destroying widgets for removed items.
Type Parameters
- Item
- Prop extends any
Parameters
- prop: Prop
  The property containing the item array
- opts: {
      create: (item: Item) => Widget;
      key: (item: Item) => string | number;
      update?: (widget: Widget, item: Item) => void;
  }
  Key extractor, widget factory, and optional update callback
Returns Binding<Application, Prop, Widget[]>
A Binding that produces an array of widgets
Example
```
const children = audio.diffBind('speakers', {
    key: (s) => s.name,
    create: (s) => Widget.Label({ label: s.description }),
    update: (w, s) => { w.label = s.description; },
});
```
Inherited from default.diffBind
- Defined in src/service.ts:472

`Protected`disconnectAll

disconnectAll(): void
Clean up all tracked signal connections Call this in service-specific dispose implementations

Returns void
Inherited from default.disconnectAll
- Defined in src/service.ts:380

dispose

dispose(): void
Dispose of service resources Override in subclasses to add specific cleanup

Returns void
Implementation of Disposable.dispose
Overrides default.dispose
- Defined in src/service/applications.ts:144

emit

emit(signal: string, ...args: any[]): void
Emits a signal, warning if the signal was not registered via Service.register.

The warning is cheap (a Set lookup per emit) and helps catch typos and missing signal declarations that silently break .bind().
Parameters
- signal: string
- ...args: any[]
Returns void
Inherited from default.emit
- Defined in src/service.ts:283

`Readonly`getKey

getKey(key: string): any
Retrieves a string value from the desktop entry by key.
Parameters
- key: string
  The desktop entry key to look up
Returns any
The string value or null
- Defined in src/service/applications.ts:117

`Readonly`launch

launch(): void
Launches the application and increments its frequency counter.

Returns void
- Defined in src/service/applications.ts:139

`Readonly`match

match(term: string): boolean
Tests whether the application matches the given search term.
Parameters
- term: string
  Case-insensitive search string matched against name, desktop, executable, and description
Returns boolean
True if any field contains the search term
- Defined in src/service/applications.ts:128

`Protected`retryWithBackoff

retryWithBackoff<T>(
    operation: () => Promise<T>,
    maxRetries?: number,
    baseDelay?: number,
): Promise<T>
Retry a DBus operation with exponential backoff
Type Parameters
- T
Parameters
- operation: () => Promise<T>
- maxRetries: number = 3
- baseDelay: number = 100
Returns Promise<T>
Inherited from default.retryWithBackoff
- Defined in src/service.ts:418

`Protected`trackConnection

trackConnection(emitter: Object, id: number): void
Track a signal connection for automatic cleanup
Parameters
- emitter: Object
  The object the signal is connected to (defaults to this)
- id: number
  The signal connection ID
Returns void
Inherited from default.trackConnection
- Defined in src/service.ts:361
trackConnection(id: number): void
Track a signal connection for automatic cleanup
Parameters
- id: number
  The signal connection ID
Returns void
Inherited from default.trackConnection
- Defined in src/service.ts:362

updateProperty

updateProperty(prop: string, value: unknown): void
Updates a property value and emits a notify signal if the value changed.

Performs a deep equality check via JSON serialization to avoid unnecessary notifications.
Parameters
- prop: string
  The property name in kebab-case
- value: unknown
  The new value
Returns void
Inherited from default.updateProperty
- Defined in src/service.ts:315

`Static`import

import<S extends keyof Services>(service: S): Promise<Services[S]>
Dynamically imports a built-in service by name.
Type Parameters
- S extends keyof Services
Parameters
- service: S
  The service name to import
Returns Promise<Services[S]>
The default export of the service module
Example
```
const Audio = await Service.import('audio');
const Battery = await Service.import('battery');
```
Inherited from default.import
- Defined in src/service.ts:234

`Static`pspec

pspec(name: string, type?: PspecType, handle?: PspecFlag): ParamSpec<unknown>
Creates a GObject property specification.
Parameters
- name: string
  The property name in kebab-case
- type: PspecType = 'jsobject'
  The property type (defaults to 'jsobject')
- handle: PspecFlag = 'r'
  The access flag: 'r', 'w', or 'rw' (defaults to 'r')
Returns ParamSpec<unknown>
A GObject.ParamSpec
Inherited from default.pspec
- Defined in src/service.ts:246

`Static`register

register(
    service: new (...args: any[]) => Object,
    signals?: { [signal: string]: PspecType[] },
    properties?: { [prop: string]: [type?: PspecType, handle?: PspecFlag] },
): void
Registers a GObject subclass with signals and properties.
Parameters
- service: new (...args: any[]) => Object
  The class constructor to register
- Optionalsignals: { [signal: string]: PspecType[] }
  Map of signal names to their parameter types
- Optionalproperties: { [prop: string]: [type?: PspecType, handle?: PspecFlag] }
  Map of property names to [type, accessFlag] tuples
Returns void
Inherited from default.register
- Defined in src/service.ts:257

Class Application

Fires

Hierarchy (View Summary)

Implements

Index

Accessors

Constructors

Methods

Accessors

app

Returns DesktopAppInfo

description

Returns any

desktop

Returns any

executable

Returns any

frequency

Returns number

Parameters

Returns void

icon_name

Returns any

isDisposed

Returns boolean

name

Returns any

wm_class

Returns any

Constructors

constructor

Parameters

Returns Application

Methods

bind

Type Parameters

Parameters

Returns Binding<Application, Prop, Application[Prop]>

Example

changed

Parameters

Returns void

connect

Parameters

Returns number

diffBind

Type Parameters

Parameters

Returns Binding<Application, Prop, Widget[]>

Example

ProtecteddisconnectAll

Returns void

dispose

Returns void

emit

Parameters

Returns void

ReadonlygetKey

Parameters

Returns any

Readonlylaunch

Returns void

Readonlymatch

Parameters

Returns boolean

ProtectedretryWithBackoff

Type Parameters

Parameters

Returns Promise<T>

ProtectedtrackConnection

Parameters

Returns void

Parameters

Returns void

updateProperty

Parameters

Returns void

Staticimport

Type Parameters

Parameters

`Protected`disconnectAll

`Readonly`getKey

`Readonly`launch

`Readonly`match

`Protected`retryWithBackoff

`Protected`trackConnection

`Static`import

`Static`pspec

`Static`register