Class: Gdk::AppLaunchContext

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

Overview

GdkAppLaunchContext is an implementation of GApp::LaunchContext that handles launching an application in a graphical context. It provides startup notification and allows to launch applications on a specific screen or workspace.

## Launching an application

GdkAppLaunchContext *context;

context = gdk_display_get_app_launch_context (display);

gdk_app_launch_context_set_screen (screen);
gdk_app_launch_context_set_timestamp (event->time);

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);

Instance Method Summary collapse

Instance Method Details

#desktop=(desktop) ⇒ nil

Sets the workspace on which applications will be launched when using this context when running under a window manager that supports multiple workspaces, as described in the [Extended Window Manager Hints](www.freedesktop.org/Standards/wm-spec).

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

Returns display.

Returns:

#display=(display) ⇒ Gdk::Display

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 gdk_app_launch_context_set_icon_name().

Parameters:

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 gdk_app_launch_context_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 GApp::Info for the launched application itself.

Parameters:

  • icon_name (String) —

    an icon name, or nil

Returns:

  • (nil)

#new ⇒ Gdk::AppLaunchContext

Creates a new Gdk::AppLaunchContext.

Returns:

#screen=(screen) ⇒ nil

Sets the screen on which applications will be launched when using this context. See also gdk_app_launch_context_set_display().

If both screen and display are set, the screen takes priority. If neither screen or display are set, the default screen and display are used.

Parameters:

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)