Class: Gdk::AppLaunchContext

Inherits:
Gio::AppLaunchContext
  • Object
show all
Defined in:
(unknown)

Overview

GdkAppLaunchContext handles launching an application in a graphical context.

It is an implementation of GAppLaunchContext that provides startup notification and allows to launch applications on a specific workspace.

Launching an application

GdkAppLaunchContext *context;

context = gdk_display_get_app_launch_context (display);

gdk_app_launch_context_set_timestamp (gdk_event_get_time (event));

if (!g_app_info_launch_default_for_uri ("http://www.gtk.org", context, &error))
  g_warning ("Launching failed: %s\n", error->message);

g_object_unref (context);

Direct Known Subclasses

GdkX11::X11AppLaunchContext

Instance Method Summary collapse

Instance Method Details

#desktop=(desktop) ⇒ nil

Sets the workspace on which applications will be launched.

This only works when running under a window manager that supports multiple workspaces, as described in the Extended Window Manager Hints. Specifically this sets the _NET_WM_DESKTOP property described in that spec.

This only works when using the X11 backend.

When the workspace is not specified or desktop is set to -1, it is up to the window manager to pick one, typically it will be the current workspace.

Parameters:

  • desktop (Integer) —

    the number of a workspace, or -1

Returns:

  • (nil)

#display ⇒ Gdk::Display

The display that the GdkAppLaunchContext is on.

Returns:

#display=(display) ⇒ Gdk::Display

The display that the GdkAppLaunchContext is on.

Parameters:

Returns:

#icon=(icon) ⇒ nil

Sets the icon for applications that are launched with this context.

Window Managers can use this information when displaying startup notification.

See also [methodGdk.AppLaunchContext.set_icon_name].

Parameters:

  • icon (Gio::Icon) —

    a GIcon

Returns:

  • (nil)

#icon_name=(icon_name) ⇒ nil

Sets the icon for applications that are launched with this context.

The icon_name will be interpreted in the same way as the Icon field in desktop files. See also [methodGdk.AppLaunchContext.set_icon].

If both icon and icon_name are set, the icon_name takes priority. If neither icon or icon_name is set, the icon is taken from either the file that is passed to launched application or from the GAppInfo for the launched application itself.

Parameters:

  • icon_name (String) —

    an icon name

Returns:

  • (nil)

#timestamp=(timestamp) ⇒ nil

Sets the timestamp of context.

The timestamp should ideally be taken from the event that triggered the launch.

Window managers can use this information to avoid moving the focus to the newly launched application when the user is busy typing in another window. This is also known as 'focus stealing prevention'.

Parameters:

  • timestamp (Integer) —

    a timestamp

Returns:

  • (nil)