Struct gtk4::ShortcutController
source · #[repr(transparent)]pub struct ShortcutController { /* private fields */ }
Expand description
ShortcutController
is an event controller that manages shortcuts.
Most common shortcuts are using this controller implicitly, e.g. by
adding a mnemonic underline to a Label
, or by installing a key
binding using Gtk::WidgetClass::add_binding()
, or by adding accelerators
to global actions using GtkApplicationExt::set_accels_for_action()
.
But it is possible to create your own shortcut controller, and add shortcuts to it.
ShortcutController
implements GListModel
for querying the
shortcuts that have been added to it.
GtkShortcutController as a GtkBuildable
GtkShortcutControllers
can be creates in ui files to set up
shortcuts in the same place as the widgets.
An example of a UI definition fragment with ShortcutController
:
<object class='GtkButton'>
<child>
<object class='GtkShortcutController'>
<property name='scope'>managed</property>
<child>
<object class='GtkShortcut'>
<property name='trigger'><Control>k</property>
<property name='action'>activate</property>
</object>
</child>
</object>
</child>
</object>
This example creates a ActivateAction
for triggering the
activate
signal of the Button
. See ShortcutAction::parse_string()
for the syntax for other kinds of ShortcutAction
. See
ShortcutTrigger::parse_string()
to learn more about the syntax
for triggers.
Properties
item-type
The type of items. See [ListModelExtManual::item_type()
][crate::gio::prelude::ListModelExtManual::item_type()].
Readable
mnemonic-modifiers
The modifiers that need to be pressed to allow mnemonics activation.
Readable | Writeable
model
A list model to take shortcuts from.
Writeable | Construct Only
n-items
The number of items. See [ListModelExtManual::n_items()
][crate::gio::prelude::ListModelExtManual::n_items()].
Readable
scope
What scope the shortcuts will be handled in.
Readable | Writeable
EventController
name
The name for this controller, typically used for debugging purposes.
Readable | Writeable
propagation-limit
The limit for which events this controller will handle.
Readable | Writeable
propagation-phase
The propagation phase at which this controller will handle events.
Readable | Writeable
widget
The widget receiving the GdkEvents
that the controller will handle.
Readable
Implements
EventControllerExt
, glib::ObjectExt
, gio::prelude::ListModelExt
, BuildableExt
Implementations§
source§impl ShortcutController
impl ShortcutController
sourcepub fn new() -> ShortcutController
pub fn new() -> ShortcutController
sourcepub fn for_model(model: &impl IsA<ListModel>) -> ShortcutController
pub fn for_model(model: &impl IsA<ListModel>) -> ShortcutController
Creates a new shortcut controller that takes its shortcuts from the given list model.
A controller created by this function does not let you add or remove individual shortcuts using the shortcut controller api, but you can change the contents of the model.
model
a GListModel
containing shortcuts
Returns
a newly created shortcut controller
sourcepub fn add_shortcut(&self, shortcut: Shortcut)
pub fn add_shortcut(&self, shortcut: Shortcut)
sourcepub fn mnemonics_modifiers(&self) -> ModifierType
pub fn mnemonics_modifiers(&self) -> ModifierType
Gets the mnemonics modifiers for when this controller activates its shortcuts.
Returns
the controller’s mnemonics modifiers
sourcepub fn scope(&self) -> ShortcutScope
pub fn scope(&self) -> ShortcutScope
Gets the scope for when this controller activates its shortcuts.
See set_scope()
for details.
Returns
the controller’s scope
sourcepub fn remove_shortcut(&self, shortcut: &Shortcut)
pub fn remove_shortcut(&self, shortcut: &Shortcut)
sourcepub fn set_mnemonics_modifiers(&self, modifiers: ModifierType)
pub fn set_mnemonics_modifiers(&self, modifiers: ModifierType)
Sets the controller to use the given modifier for mnemonics.
The mnemonics modifiers determines which modifiers need to be pressed to allow activation of shortcuts with mnemonics triggers.
GTK normally uses the Alt modifier for mnemonics, except in PopoverMenu
s,
where mnemonics can be triggered without any modifiers. It should be very
rarely necessary to change this, and doing so is likely to interfere with
other shortcuts.
This value is only relevant for local shortcut controllers. Global and managed shortcut controllers will have their shortcuts activated from other places which have their own modifiers for activating mnemonics.
modifiers
the new mnemonics_modifiers to use
sourcepub fn set_scope(&self, scope: ShortcutScope)
pub fn set_scope(&self, scope: ShortcutScope)
Sets the controller to have the given @scope.
The scope allows shortcuts to be activated outside of the normal event propagation. In particular, it allows installing global keyboard shortcuts that can be activated even when a widget does not have focus.
With ShortcutScope::Local
, shortcuts will only be activated
when the widget has focus.
scope
the new scope to use
sourcepub fn mnemonic_modifiers(&self) -> ModifierType
pub fn mnemonic_modifiers(&self) -> ModifierType
The modifiers that need to be pressed to allow mnemonics activation.
sourcepub fn set_mnemonic_modifiers(&self, mnemonic_modifiers: ModifierType)
pub fn set_mnemonic_modifiers(&self, mnemonic_modifiers: ModifierType)
The modifiers that need to be pressed to allow mnemonics activation.
pub fn connect_mnemonic_modifiers_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
pub fn connect_scope_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId
Trait Implementations§
source§impl Clone for ShortcutController
impl Clone for ShortcutController
source§impl Debug for ShortcutController
impl Debug for ShortcutController
source§impl Default for ShortcutController
impl Default for ShortcutController
source§impl Display for ShortcutController
impl Display for ShortcutController
source§impl HasParamSpec for ShortcutController
impl HasParamSpec for ShortcutController
type ParamSpec = ParamSpecObject
§type SetValue = ShortcutController
type SetValue = ShortcutController
type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, ShortcutController>
fn param_spec_builder() -> Self::BuilderFn
source§impl Hash for ShortcutController
impl Hash for ShortcutController
source§impl Ord for ShortcutController
impl Ord for ShortcutController
source§impl ParentClassIs for ShortcutController
impl ParentClassIs for ShortcutController
type Parent = EventController
source§impl<OT: ObjectType> PartialEq<OT> for ShortcutController
impl<OT: ObjectType> PartialEq<OT> for ShortcutController
source§impl<OT: ObjectType> PartialOrd<OT> for ShortcutController
impl<OT: ObjectType> PartialOrd<OT> for ShortcutController
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl StaticType for ShortcutController
impl StaticType for ShortcutController
source§fn static_type() -> Type
fn static_type() -> Type
Self
.impl Eq for ShortcutController
impl IsA<Buildable> for ShortcutController
impl IsA<EventController> for ShortcutController
impl IsA<ListModel> for ShortcutController
Auto Trait Implementations§
impl RefUnwindSafe for ShortcutController
impl !Send for ShortcutController
impl !Sync for ShortcutController
impl Unpin for ShortcutController
impl UnwindSafe for ShortcutController
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details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value] ) -> Option<Value>
source§fn disconnect(&self, handler_id: SignalHandlerId)
fn disconnect(&self, handler_id: SignalHandlerId)
source§fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
notify
signal of the object. Read moresource§fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + 'static,
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + 'static,
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),
notify
signal of the object. Read more