Struct gio::Notification

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pub struct Notification { /* private fields */ }
Expand description

GNotification is a mechanism for creating a notification to be shown to the user — typically as a pop-up notification presented by the desktop environment shell.

The key difference between GNotification and other similar APIs is that, if supported by the desktop environment, notifications sent with GNotification will persist after the application has exited, and even across system reboots.

Since the user may click on a notification while the application is not running, applications using GNotification should be able to be started as a D-Bus service, using Application.

In order for GNotification to work, the application must have installed a .desktop file. For example:

[Desktop Entry]
Name=Test Application
Comment=Description of what Test Application does
Exec=gnome-test-application
Icon=org.gnome.TestApplication
Terminal=false
Type=Application
Categories=GNOME;GTK;TestApplication Category;
StartupNotify=true
DBusActivatable=true
X-GNOME-UsesNotifications=true

The X-GNOME-UsesNotifications key indicates to GNOME Control Center that this application uses notifications, so it can be listed in the Control Center’s ‘Notifications’ panel.

The .desktop file must be named as org.gnome.TestApplication.desktop, where org.gnome.TestApplication is the ID passed to Application::new().

User interaction with a notification (either the default action, or buttons) must be associated with actions on the application (ie: app. actions). It is not possible to route user interaction through the notification itself, because the object will not exist if the application is autostarted as a result of a notification being clicked.

A notification can be sent with ApplicationExt::send_notification().

§Implements

[trait@glib::ObjectExt]

GLib type: GObject with reference counted clone semantics.

Implementations§

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impl Notification

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pub fn new(title: &str) -> Notification

Creates a new #GNotification with @title as its title.

After populating @notification with more details, it can be sent to the desktop shell with g_application_send_notification(). Changing any properties after this call will not have any effect until resending @notification.

§title

the title of the notification

§Returns

a new #GNotification instance

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pub fn add_button(&self, label: &str, detailed_action: &str)

Adds a button to @self that activates the action in @detailed_action when clicked. That action must be an application-wide action (starting with “app.”). If @detailed_action contains a target, the action will be activated with that target as its parameter.

See g_action_parse_detailed_name() for a description of the format for @detailed_action.

§label

label of the button

§detailed_action

a detailed action name

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pub fn add_button_with_target_value( &self, label: &str, action: &str, target: Option<&Variant>, )

Adds a button to @self that activates @action when clicked. @action must be an application-wide action (it must start with “app.”).

If @target is non-None, @action will be activated with @target as its parameter.

§label

label of the button

§action

an action name

§target

a #GVariant to use as @action’s parameter, or None

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pub fn set_body(&self, body: Option<&str>)

Sets the body of @self to @body.

§body

the new body for @self, or None

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pub fn set_category(&self, category: Option<&str>)

Available on crate feature v2_70 only.

Sets the type of @self to @category. Categories have a main type like email, im or device and can have a detail separated by a ., e.g. im.received or email.arrived. Setting the category helps the notification server to select proper feedback to the user.

Standard categories are listed in the specification.

§category

the category for @self, or None for no category

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pub fn set_default_action(&self, detailed_action: &str)

Sets the default action of @self to @detailed_action. This action is activated when the notification is clicked on.

The action in @detailed_action must be an application-wide action (it must start with “app.”). If @detailed_action contains a target, the given action will be activated with that target as its parameter. See g_action_parse_detailed_name() for a description of the format for @detailed_action.

When no default action is set, the application that the notification was sent on is activated.

§detailed_action

a detailed action name

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pub fn set_default_action_and_target_value( &self, action: &str, target: Option<&Variant>, )

Sets the default action of @self to @action. This action is activated when the notification is clicked on. It must be an application-wide action (start with “app.”).

If @target is non-None, @action will be activated with @target as its parameter. If @target is floating, it will be consumed.

When no default action is set, the application that the notification was sent on is activated.

§action

an action name

§target

a #GVariant to use as @action’s parameter, or None

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pub fn set_icon(&self, icon: &impl IsA<Icon>)

Sets the icon of @self to @icon.

§icon

the icon to be shown in @self, as a #GIcon

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pub fn set_priority(&self, priority: NotificationPriority)

Sets the priority of @self to @priority. See #GNotificationPriority for possible values.

§priority

a #GNotificationPriority

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pub fn set_title(&self, title: &str)

Sets the title of @self to @title.

§title

the new title for @self

Trait Implementations§

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impl Clone for Notification

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fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Notification

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl HasParamSpec for Notification

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type ParamSpec = ParamSpecObject

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type SetValue = Notification

Preferred value to be used as setter for the associated ParamSpec.
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type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, Notification>

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for Notification

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fn hash<H>(&self, state: &mut H)
where H: Hasher,

Hashes the memory address of this object.

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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for Notification

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fn cmp(&self, other: &Self) -> Ordering

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl ParentClassIs for Notification

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impl<OT: ObjectType> PartialEq<OT> for Notification

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fn eq(&self, other: &OT) -> bool

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<OT: ObjectType> PartialOrd<OT> for Notification

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fn partial_cmp(&self, other: &OT) -> Option<Ordering>

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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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 more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StaticType for Notification

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for Notification

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Tries to downcast to a subclass or interface implementor T. Read more
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Tries to downcast to a reference of its subclass or interface implementor T. Read more
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Sets the property property_name of the object to value value. Read more
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Sets the property property_name of the object to value value. Read more
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Get the ParamSpec of the property property_name of this object.
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Return all ParamSpec of the properties of this object.
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fn freeze_notify(&self) -> PropertyNotificationFreezeGuard

Freeze all property notifications until the return guard object is dropped. Read more
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fn block_signal(&self, handler_id: &SignalHandlerId)

Block a given signal handler. Read more
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Unblock a given signal handler.
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Stop emission of the currently emitted signal.
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Stop emission of the currently emitted signal by the (possibly detailed) signal name.
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fn connect<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,

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Connect to the signal signal_id on this object. Read more
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unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_name on this object. Read more
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unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F, ) -> SignalHandlerId
where F: Fn(&[Value]) -> Option<Value>,

Connect to the signal signal_id on this object. Read more
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Connect a closure to the signal signal_name on this object. Read more
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Connect a closure to the signal signal_id on this object. Read more
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fn watch_closure(&self, closure: &impl AsRef<Closure>)

Limits the lifetime of closure to the lifetime of the object. When the object’s reference count drops to zero, the closure will be invalidated. An invalidated closure will ignore any calls to invoke_with_values, or invoke when using Rust closures.
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Emit signal by signal id. Read more
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Same as Self::emit but takes Value for the arguments.
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Emit signal by its name. Read more
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Emit signal by its name with details. Read more
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Emit signal by its name with details. Read more
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Emit signal by signal id with details. Read more
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Emit signal by signal id with details. Read more
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fn disconnect(&self, handler_id: SignalHandlerId)

Disconnect a previously connected signal handler.
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fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&T, &ParamSpec) + Send + Sync + 'static,

Connect to the notify signal of the object. Read more
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fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId
where F: Fn(&T, &ParamSpec) + 'static,

Connect to the notify signal of the object. Read more
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unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F, ) -> SignalHandlerId
where F: Fn(&T, &ParamSpec),

Connect to the notify signal of the object. Read more
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fn notify(&self, property_name: &str)

Notify that the given property has changed its value. Read more
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Notify that the given property has changed its value. Read more
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fn downgrade(&self) -> WeakRef<T>

Downgrade this object to a weak reference.
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Add a callback to be notified when the Object is disposed.
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Bind property source_property on this object to the target_property on the target object. Read more
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Returns the strong reference count of this object.
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Runs the dispose mechanism of the object. Read more
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impl<T> Property for T
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type Value = T

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type Value = T

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