Gio::AppLaunchContext Class Reference

This is used to handle, for instance, startup notification and launching of the new application on the same screen as the launching window. More...

#include <giomm/applaunchcontext.h>

Inheritance diagram for Gio::AppLaunchContext:

Public Member Functions
	AppLaunchContext (AppLaunchContext &&src) noexcept
AppLaunchContext &	operator= (AppLaunchContext &&src) noexcept
	~AppLaunchContext () noexcept override
GAppLaunchContext *	gobj ()
	Provides access to the underlying C GObject.
const GAppLaunchContext *	gobj () const
	Provides access to the underlying C GObject.
GAppLaunchContext *	gobj_copy ()
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
void	setenv (const Glib::ustring &variable, const Glib::ustring & value)
	Arranges for variable to be set to value in the child’s environment when context is used to launch an application.
void	unsetenv (const Glib::ustring &variable)
	Arranges for variable to be unset in the child’s environment when context is used to launch an application.
std::vector< Glib::ustring >	get_environment () const
	Gets the complete environment variable list to be passed to the child process when context is used to launch an application.
std::string	get_display (const Glib::RefPtr< AppInfo > &info, const std::vector< Glib::RefPtr< Gio::File > > &files)
	Gets the display string for the context.
std::string	get_startup_notify_id (const Glib::RefPtr< AppInfo > &info, const std::vector< Glib::RefPtr< Gio::File > > &files)
	Initiates startup notification for the application and returns the XDG_ACTIVATION_TOKEN or DESKTOP_STARTUP_ID for the launched operation, if supported.
void	launch_failed (const std::string &startup_notify_id)
	Called when an application has failed to launch, so that it can cancel the application startup notification started in Gio::AppLaunchContext::get_startup_notify_id().
Public Member Functions inherited from Glib::Object
	Object (const Object &)=delete
Object &	operator= (const Object &)=delete
	Object (Object &&src) noexcept
Object &	operator= (Object &&src) noexcept
void *	get_data (const QueryQuark & key)
void	set_data (const Quark & key, void *data)
void	set_data_with_c_callback (const Quark & key, void *data, GDestroyNotify notify)
void	set_data (const Quark & key, void *data, DestroyNotify notify)
	Prefer set_data_with_c_callback() with a callback with C linkage.
void	remove_data (const QueryQuark &quark)
void *	steal_data (const QueryQuark &quark)
Public Member Functions inherited from Glib::ObjectBase
	ObjectBase (const ObjectBase &)=delete
ObjectBase &	operator= (const ObjectBase &)=delete
void	set_property_value (const Glib::ustring & property_name, const Glib::ValueBase & value)
	You probably want to use a specific property_*() accessor method instead.
void	get_property_value (const Glib::ustring & property_name, Glib::ValueBase & value) const
	You probably want to use a specific property_*() accessor method instead.
template<class PropertyType >
void	set_property (const Glib::ustring & property_name, const PropertyType & value)
	You probably want to use a specific property_*() accessor method instead.
template<class PropertyType >
void	get_property (const Glib::ustring & property_name, PropertyType & value) const
	You probably want to use a specific property_*() accessor method instead.
template<class PropertyType >
PropertyType	get_property (const Glib::ustring & property_name) const
	You probably want to use a specific property_*() accessor method instead.
sigc::connection	connect_property_changed (const Glib::ustring & property_name, const sigc::slot< void()> &slot)
	You can use the signal_changed() signal of the property proxy instead.
sigc::connection	connect_property_changed (const Glib::ustring & property_name, sigc::slot< void()> &&slot)
	You can use the signal_changed() signal of the property proxy instead.
void	freeze_notify ()
	Increases the freeze count on object.
void	thaw_notify ()
	Reverts the effect of a previous call to freeze_notify().
virtual void	reference () const
	Increment the reference count for this object.
virtual void	unreference () const
	Decrement the reference count for this object.
GObject *	gobj ()
	Provides access to the underlying C GObject.
const GObject *	gobj () const
	Provides access to the underlying C GObject.
GObject *	gobj_copy () const
	Give a ref-ed copy to someone. Use for direct struct access.

Static Public Member Functions
static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system.
static Glib::RefPtr< AppLaunchContext >	create ()

Protected Member Functions
	AppLaunchContext ()
Protected Member Functions inherited from Glib::Object
	Object ()
	Object (const Glib::ConstructParams &construct_params)
	Object (GObject *castitem)
	~Object () noexcept override
Protected Member Functions inherited from Glib::ObjectBase
	ObjectBase ()
	This default constructor is called implicitly from the constructor of user-derived classes, even if, for instance, Gtk::Button calls a different ObjectBase constructor.
	ObjectBase (const char *custom_type_name)
	A derived constructor always overrides this choice.
	ObjectBase (const std::type_info &custom_type_info)
	This constructor is a special feature to allow creation of derived types on the fly, without having to use g_object_new() manually.
	ObjectBase (ObjectBase &&src) noexcept
ObjectBase &	operator= (ObjectBase &&src) noexcept
virtual	~ObjectBase () noexcept=0
void	initialize (GObject *castitem)
void	initialize_move (GObject *castitem, Glib::ObjectBase *previous_wrapper)

Related Symbols
(Note that these are not member symbols.)
Glib::RefPtr< Gio::AppLaunchContext >	wrap (GAppLaunchContext *object, bool take_copy=false)
	A Glib::wrap() method for this object.
Related Symbols inherited from Glib::Object
Glib::RefPtr< Glib::Object >	wrap (GObject *object, bool take_copy=false)

Additional Inherited Members
Public Types inherited from Glib::Object
using	DestroyNotify = void(*)(gpointer data)

Detailed Description

This is used to handle, for instance, startup notification and launching of the new application on the same screen as the launching window.

See also AppInfo.

Since glibmm 2.16:

Constructor & Destructor Documentation

AppLaunchContext() [1/2]

Gio::AppLaunchContext::AppLaunchContext ( AppLaunchContext &&  src )

noexcept

~AppLaunchContext()

Gio::AppLaunchContext::~AppLaunchContext ( )

overridenoexcept

AppLaunchContext() [2/2]

Gio::AppLaunchContext::AppLaunchContext ( )

protected

Member Function Documentation

create()

static Glib::RefPtr< AppLaunchContext > Gio::AppLaunchContext::create ( )

static

get_display()

std::string Gio::AppLaunchContext::get_display	(	const Glib::RefPtr< AppInfo > &	info,
		const std::vector< Glib::RefPtr< Gio::File > > &	files
	)

Gets the display string for the context.

This is used to ensure new applications are started on the same display as the launching application, by setting the DISPLAY environment variable.

Parameters

info	The app info.
files	A list of Gio::File objects.

Returns

A display string for the display.

get_environment()

std::vector< Glib::ustring > Gio::AppLaunchContext::get_environment

(

)

const

Gets the complete environment variable list to be passed to the child process when context is used to launch an application.

This is a nullptr-terminated array of strings, where each string has the form KEY=VALUE.

Since glibmm 2.32:

Returns

The child’s environment.

get_startup_notify_id()

std::string Gio::AppLaunchContext::get_startup_notify_id	(	const Glib::RefPtr< AppInfo > &	info,
		const std::vector< Glib::RefPtr< Gio::File > > &	files
	)

Initiates startup notification for the application and returns the XDG_ACTIVATION_TOKEN or DESKTOP_STARTUP_ID for the launched operation, if supported.

The returned token may be referred to equivalently as an ‘activation token’ (using Wayland terminology) or a ‘startup sequence ID’ (using X11 terminology). The two are interoperable.

Activation tokens are defined in the XDG Activation Protocol, and startup notification IDs are defined in the freedesktop.org Startup Notification Protocol.

Support for the XDG Activation Protocol was added in GLib 2.76. Since GLib 2.82 info and files can be nullptr. If that’s not supported by the backend, the returned token will be nullptr.

Parameters

info	The app info.
files	A list of Gio::File objects.

Returns

A startup notification ID for the application, or nullptr if not supported.

get_type()

static GType Gio::AppLaunchContext::get_type ( )

static

Get the GType for this class, for use with the underlying GObject type system.

gobj() [1/2]

GAppLaunchContext * Gio::AppLaunchContext::gobj ( )

inline

Provides access to the underlying C GObject.

gobj() [2/2]

const GAppLaunchContext * Gio::AppLaunchContext::gobj ( ) const

inline

Provides access to the underlying C GObject.

gobj_copy()

GAppLaunchContext * Gio::AppLaunchContext::gobj_copy

(

)

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

launch_failed()

void Gio::AppLaunchContext::launch_failed

(

const std::string &

startup_notify_id

)

Called when an application has failed to launch, so that it can cancel the application startup notification started in Gio::AppLaunchContext::get_startup_notify_id().

Parameters

startup_notify_id

The startup notification id that was returned by Gio::AppLaunchContext::get_startup_notify_id().

operator=()

AppLaunchContext & Gio::AppLaunchContext::operator= ( AppLaunchContext &&  src )

noexcept

setenv()

void Gio::AppLaunchContext::setenv	(	const Glib::ustring &	variable,
		const Glib::ustring &	value
	)

Arranges for variable to be set to value in the child’s environment when context is used to launch an application.

Since glibmm 2.32:

Parameters

variable	The environment variable to set.
value	The value for to set the variable to.

unsetenv()

void Gio::AppLaunchContext::unsetenv

(

const Glib::ustring &

variable

)

Arranges for variable to be unset in the child’s environment when context is used to launch an application.

Since glibmm 2.32:

Parameters

variable

The environment variable to remove.

Friends And Related Symbol Documentation

wrap()

Glib::RefPtr< Gio::AppLaunchContext > wrap ( GAppLaunchContext *  object, bool  take_copy = false  )

related

A Glib::wrap() method for this object.

Parameters

object	The C instance.
take_copy	False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns

A C++ instance that wraps this C instance.