Struct gtk4::Application
source · #[repr(transparent)]pub struct Application { /* private fields */ }Expand description
Application is a high-level API for writing applications.
It supports many aspects of writing a GTK application in a convenient fashion, without enforcing a one-size-fits-all model.
Currently, Application handles GTK initialization, application
uniqueness, session management, provides some basic scriptability and
desktop shell integration by exporting actions and menus and manages a
list of toplevel windows whose life-cycle is automatically tied to the
life-cycle of your application.
While Application works fine with plain Windows, it is
recommended to use it together with ApplicationWindow.
Automatic resources
Application will automatically load menus from the Builder
resource located at “gtk/menus.ui”, relative to the application’s
resource base path (see [ApplicationExtManual::set_resource_base_path()][crate::gio::prelude::ApplicationExtManual::set_resource_base_path()]).
The menu with the ID “menubar” is taken as the application’s
menubar. Additional menus (most interesting submenus) can be named
and accessed via GtkApplicationExt::menu_by_id() which allows for
dynamic population of a part of the menu structure.
Note that automatic resource loading uses the resource base path that is set at construction time and will not work if the resource base path is changed at a later time.
It is also possible to provide the menubar manually using
GtkApplicationExt::set_menubar().
Application will also automatically setup an icon search path for
the default icon theme by appending “icons” to the resource base
path. This allows your application to easily store its icons as
resources. See IconTheme::add_resource_path() for more
information.
If there is a resource located at gtk/help-overlay.ui which
defines a ShortcutsWindow with ID help_overlay then
Application associates an instance of this shortcuts window with
each ApplicationWindow and sets up the keyboard accelerator
Control+? to open it. To create a menu item that
displays the shortcuts window, associate the item with the action
win.show-help-overlay.
A simple application
A simple example is available in the GTK source code repository
Application optionally registers with a session manager of the
users session (if you set the property::Application::register-session
property) and offers various functionality related to the session
life-cycle.
An application can block various ways to end the session with
the GtkApplicationExt::inhibit() function. Typical use cases for
this kind of inhibiting are long-running, uninterruptible operations,
such as burning a CD or performing a disk backup. The session
manager may not honor the inhibitor, but it can be expected to
inform the user about the negative consequences of ending the
session while inhibitors are present.
See Also
HowDoI: Using GtkApplication, Getting Started with GTK: Basics
Implements
GtkApplicationExt, gio::prelude::ApplicationExt, glib::ObjectExt, gio::prelude::ActionGroupExt, gio::prelude::ActionMapExt
Implementations§
source§impl Application
impl Application
pub const NONE: Option<&'static Application> = None
sourcepub fn builder() -> ApplicationBuilder
pub fn builder() -> ApplicationBuilder
Creates a new builder-pattern struct instance to construct Application objects.
This method returns an instance of ApplicationBuilder which can be used to create Application objects.
source§impl Application
impl Application
pub fn new(application_id: Option<&str>, flags: ApplicationFlags) -> Self
Trait Implementations§
source§impl Clone for Application
impl Clone for Application
source§impl Debug for Application
impl Debug for Application
source§impl Default for Application
impl Default for Application
source§impl Display for Application
impl Display for Application
source§impl Hash for Application
impl Hash for Application
source§impl<T: GtkApplicationImpl> IsSubclassable<T> for Application
impl<T: GtkApplicationImpl> IsSubclassable<T> for Application
source§fn class_init(class: &mut Class<Self>)
fn class_init(class: &mut Class<Self>)
Override the virtual methods of this class for the given subclass and do other class
initialization. Read more
source§fn instance_init(instance: &mut InitializingObject<T>)
fn instance_init(instance: &mut InitializingObject<T>)
Instance specific initialization. Read more
source§impl Ord for Application
impl Ord for Application
source§impl ParentClassIs for Application
impl ParentClassIs for Application
type Parent = Application
source§impl<OT: ObjectType> PartialEq<OT> for Application
impl<OT: ObjectType> PartialEq<OT> for Application
source§impl<OT: ObjectType> PartialOrd<OT> for Application
impl<OT: ObjectType> PartialOrd<OT> for Application
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self and other) and is used by the <=
operator. Read moresource§impl StaticType for Application
impl StaticType for Application
source§fn static_type() -> Type
fn static_type() -> Type
Returns the type identifier of
Self.impl Eq for Application
impl IsA<ActionGroup> for Application
impl IsA<ActionMap> for Application
impl IsA<Application> for Application
Auto Trait Implementations§
impl RefUnwindSafe for Application
impl !Send for Application
impl !Sync for Application
impl Unpin for Application
impl UnwindSafe for Application
Blanket Implementations§
source§impl<O> ActionGroupExt for Owhere
O: IsA<ActionGroup>,
impl<O> ActionGroupExt for Owhere
O: IsA<ActionGroup>,
fn action_added(&self, action_name: &str)
fn action_enabled_changed(&self, action_name: &str, enabled: bool)
fn action_removed(&self, action_name: &str)
fn action_state_changed(&self, action_name: &str, state: &Variant)
fn activate_action(&self, action_name: &str, parameter: Option<&Variant>)
fn change_action_state(&self, action_name: &str, value: &Variant)
fn is_action_enabled(&self, action_name: &str) -> bool
fn action_parameter_type(&self, action_name: &str) -> Option<VariantType>
fn action_state(&self, action_name: &str) -> Option<Variant>
fn action_state_hint(&self, action_name: &str) -> Option<Variant>
fn action_state_type(&self, action_name: &str) -> Option<VariantType>
fn has_action(&self, action_name: &str) -> bool
fn list_actions(&self) -> Vec<GString, Global>
fn connect_action_added<F>(&self, detail: Option<&str>, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O, &str),
fn connect_action_enabled_changed<F>(
&self,
detail: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: 'static + Fn(&O, &str, bool),
fn connect_action_removed<F>(&self, detail: Option<&str>, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O, &str),
fn connect_action_state_changed<F>(
&self,
detail: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: 'static + Fn(&O, &str, &Variant),
source§impl<O> ActionMapExt for Owhere
O: IsA<ActionMap>,
impl<O> ActionMapExt for Owhere
O: IsA<ActionMap>,
fn add_action(&self, action: &impl IsA<Action>)
fn lookup_action(&self, action_name: &str) -> Option<Action>
fn remove_action(&self, action_name: &str)
source§impl<O> ActionMapExtManual for Owhere
O: IsA<ActionMap>,
impl<O> ActionMapExtManual for Owhere
O: IsA<ActionMap>,
fn add_action_entries(
&self,
entries: impl IntoIterator<Item = ActionEntry<O>>
) -> Result<(), BoolError>
source§impl<O> ApplicationExt for Owhere
O: IsA<Application>,
impl<O> ApplicationExt for Owhere
O: IsA<Application>,
fn activate(&self)
fn add_main_option(
&self,
long_name: &str,
short_name: Char,
flags: OptionFlags,
arg: OptionArg,
description: &str,
arg_description: Option<&str>
)
fn bind_busy_property(&self, object: &impl IsA<Object>, property: &str)
fn application_id(&self) -> Option<GString>
fn dbus_connection(&self) -> Option<DBusConnection>
fn dbus_object_path(&self) -> Option<GString>
fn flags(&self) -> ApplicationFlags
fn inactivity_timeout(&self) -> u32
fn is_busy(&self) -> bool
fn is_registered(&self) -> bool
fn is_remote(&self) -> bool
fn resource_base_path(&self) -> Option<GString>
fn open(&self, files: &[File], hint: &str)
fn quit(&self)
fn register(
&self,
cancellable: Option<&impl IsA<Cancellable>>
) -> Result<(), Error>
fn send_notification(&self, id: Option<&str>, notification: &Notification)
fn set_application_id(&self, application_id: Option<&str>)
fn set_default(&self)
fn set_flags(&self, flags: ApplicationFlags)
fn set_inactivity_timeout(&self, inactivity_timeout: u32)
fn set_option_context_description(&self, description: Option<&str>)
fn set_option_context_parameter_string(&self, parameter_string: Option<&str>)
fn set_option_context_summary(&self, summary: Option<&str>)
fn set_resource_base_path(&self, resource_path: Option<&str>)
fn unbind_busy_property(&self, object: &impl IsA<Object>, property: &str)
fn withdraw_notification(&self, id: &str)
fn set_action_group<P>(&self, action_group: Option<&P>)where
P: IsA<ActionGroup>,
fn connect_activate<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O),
fn connect_command_line<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O, &ApplicationCommandLine) -> i32,
fn connect_handle_local_options<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O, &VariantDict) -> i32,
source§fn connect_name_lost<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O) -> bool,
fn connect_name_lost<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O) -> bool,
Available on crate feature
v2_60 only.fn connect_shutdown<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O),
fn connect_startup<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O),
fn connect_action_group_notify<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O),
fn connect_application_id_notify<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O),
fn connect_flags_notify<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O),
fn connect_inactivity_timeout_notify<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O),
fn connect_is_busy_notify<F>(&self, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&O),
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F: 'static + Fn(&O),
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F: 'static + Fn(&O),
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F: 'static + Fn(&O),
source§impl<O> ApplicationExtManual for Owhere
O: IsA<Application>,
impl<O> ApplicationExtManual for Owhere
O: IsA<Application>,
source§impl<T> Cast for Twhere
T: ObjectType,
impl<T> Cast for Twhere
T: ObjectType,
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Block a given signal handler. Read more
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Unblock a given signal handler.
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callback: F
) -> SignalHandlerIdwhere
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&self,
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details: Option<Quark>,
after: bool,
callback: F
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) -> SignalHandlerIdwhere
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&self,
signal_name: &str,
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callback: F
) -> SignalHandlerIdwhere
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&self,
signal_id: SignalId,
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after: bool,
callback: F
) -> SignalHandlerIdwhere
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&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
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signal_name: &str,
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callback: F
) -> SignalHandlerIdwhere
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after: bool,
callback: F
) -> SignalHandlerIdwhere
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&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
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signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
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signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
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closure: RustClosure
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signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> SignalHandlerId
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signal_name: &str,
args: &[Value]
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signal_name: &str,
args: &[Value]
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args: &[&dyn ToValue]
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args: &[&dyn ToValue]
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Connect to the
notify signal of the object. Read moresource§fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&T, &ParamSpec),
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: 'static + Fn(&T, &ParamSpec),
Connect to the
notify signal of the object. Read moresource§unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec),
unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec),
Connect to the
notify signal of the object. Read moresource§fn notify(&self, property_name: &str)
fn notify(&self, property_name: &str)
Notify that the given property has changed its value. Read more
source§fn notify_by_pspec(&self, pspec: &ParamSpec)
fn notify_by_pspec(&self, pspec: &ParamSpec)
Notify that the given property has changed its value. Read more
source§fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>where
F: 'static + FnOnce() + Send,
fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>where
F: 'static + FnOnce() + Send,
Add a callback to be notified when the Object is disposed.
source§fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>where
F: 'static + FnOnce(),
fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>where
F: 'static + FnOnce(),
Add a callback to be notified when the Object is disposed. Read more
source§fn bind_property<'f, 't, O, 'a>(
&'a self,
source_property: &'a str,
target: &'a O,
target_property: &'a str
) -> BindingBuilder<'a, 'f, 't>where
O: ObjectType,
fn bind_property<'f, 't, O, 'a>(
&'a self,
source_property: &'a str,
target: &'a O,
target_property: &'a str
) -> BindingBuilder<'a, 'f, 't>where
O: ObjectType,
source§unsafe fn run_dispose(&self)
unsafe fn run_dispose(&self)
Runs the dispose mechanism of the object. Read more
source§impl<T> StaticTypeExt for Twhere
T: StaticType,
impl<T> StaticTypeExt for Twhere
T: StaticType,
source§fn ensure_type()
fn ensure_type()
Ensures that the type has been registered with the type system.