Gio.AppInfoMonitor

g GObject.Object GObject.Object Gio.AppInfoMonitor Gio.AppInfoMonitor GObject.Object->Gio.AppInfoMonitor

Subclasses:None

Methods

Inherited:GObject.Object (37)
Structs:GObject.ObjectClass (5)
class get ()

Virtual Methods

Inherited:GObject.Object (7)

Properties

None

Signals

Inherited:GObject.Object (1)
Name Short Description
changed Signal emitted when the app info database for changes (ie: newly installed or removed applications).

Fields

Inherited:GObject.Object (1)

Class Details

class Gio.AppInfoMonitor(**kwargs)
Bases:GObject.Object
Abstract:No

Gio.AppInfoMonitor is a very simple object used for monitoring the app info database for changes (ie: newly installed or removed applications).

Call Gio.AppInfoMonitor.get() to get a Gio.AppInfoMonitor and connect to the “changed” signal.

In the usual case, applications should try to make note of the change (doing things like invalidating caches) but not act on it. In particular, applications should avoid making calls to Gio.AppInfo APIs in response to the change signal, deferring these until the time that the data is actually required. The exception to this case is when application information is actually being displayed on the screen (eg: during a search or when the list of all applications is shown). The reason for this is that changes to the list of installed applications often come in groups (like during system updates) and rescanning the list on every change is pointless and expensive.

New in version 2.40.

classmethod get()[source]
Returns:a reference to a Gio.AppInfoMonitor
Return type:Gio.AppInfoMonitor

Gets the Gio.AppInfoMonitor for the current thread-default main context.

The Gio.AppInfoMonitor will emit a “changed” signal in the thread-default main context whenever the list of installed applications (as reported by Gio.AppInfo.get_all()) may have changed.

You must only call GObject.Object.unref() on the return value from under the same main context as you created it.

New in version 2.40.

Signal Details

Gio.AppInfoMonitor.signals.changed(app_info_monitor)
Signal Name:changed
Flags:RUN_FIRST
Parameters:app_info_monitor (Gio.AppInfoMonitor) – The object which received the signal

Signal emitted when the app info database for changes (ie: newly installed or removed applications).