Struct gtk4::AppChooserButton [−][src]
pub struct AppChooserButton(_);Expand description
The AppChooserButton lets the user select an application.
Initially, a AppChooserButton selects the first application
in its list, which will either be the most-recently used application
or, if property::AppChooserButton::show-default-item is true, the
default application.
The list of applications shown in a AppChooserButton includes
the recommended applications for the given content type. When
property::AppChooserButton::show-default-item is set, the default
application is also included. To let the user chooser other applications,
you can set the property::AppChooserButton::show-dialog-item property,
which allows to open a full AppChooserDialog.
It is possible to add custom items to the list, using
append_custom_item(). These items cause
the signal::AppChooserButton::custom-item-activated signal to be
emitted when they are selected.
To track changes in the selected application, use the
signal::AppChooserButton::changed signal.
CSS nodes
AppChooserButton has a single CSS node with the name “appchooserbutton”.
Implements
WidgetExt, glib::ObjectExt, AccessibleExt, BuildableExt, ConstraintTargetExt, AppChooserExt, WidgetExtManual, AccessibleExtManual
Implementations
Creates a new AppChooserButton for applications
that can handle content of the given type.
content_type
the content type to show applications for
Returns
a newly created AppChooserButton
Creates a new builder-pattern struct instance to construct AppChooserButton objects.
This method returns an instance of AppChooserButtonBuilder which can be used to create AppChooserButton objects.
Appends a custom item to the list of applications that is shown in the popup.
The item name must be unique per-widget. Clients can use the
provided name as a detail for the
signal::AppChooserButton::custom-item-activated signal, to add a
callback for the activation of a particular custom item in the list.
See also append_separator().
name
the name of the custom item
label
the label for the custom item
icon
the icon for the custom item
Appends a separator to the list of applications that is shown in the popup.
Returns whether the dropdown menu should show the default application at the top.
Returns
the value of property::AppChooserButton::show-default-item
Returns whether the dropdown menu shows an item
for a AppChooserDialog.
Returns
the value of property::AppChooserButton::show-dialog-item
Selects a custom item.
See append_custom_item().
Use AppChooserExt::refresh() to bring the selection
to its initial state.
name
the name of the custom item
Sets the text to display at the top of the dialog.
If the heading is not set, the dialog displays a default text.
heading
a string containing Pango markup
Sets whether the dropdown menu of this button should show the default application for the given content type at top.
setting
the new value for property::AppChooserButton::show-default-item
Sets whether the dropdown menu of this button should show an
entry to trigger a AppChooserDialog.
setting
the new value for property::AppChooserButton::show-dialog-item
This is supported on crate feature v4_4 only.
v4_4 only.Emitted to when the button is activated.
The ::activate signal on AppChooserButton is an action signal and
emitting it causes the button to pop up its dialog.
v4_4 only.Emitted when the active application changes.
pub fn connect_custom_item_activated<F: Fn(&Self, &str) + 'static>(
&self,
detail: Option<&str>,
f: F
) -> SignalHandlerId
pub fn connect_custom_item_activated<F: Fn(&Self, &str) + 'static>(
&self,
detail: Option<&str>,
f: F
) -> SignalHandlerId
Emitted when a custom item is activated.
Use append_custom_item(),
to add custom items.
item_name
the name of the activated item
pub fn connect_show_default_item_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_show_dialog_item_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId
Trait Implementations
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <=
operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
Returns the type identifier of Self.
Auto Trait Implementations
impl RefUnwindSafe for AppChooserButton
impl !Send for AppChooserButton
impl !Sync for AppChooserButton
impl Unpin for AppChooserButton
impl UnwindSafe for AppChooserButton
Blanket Implementations
Mutably borrows from an owned value. Read more
Upcasts an object to a superclass or interface T. Read more
Upcasts an object to a reference of its superclass or interface T. Read more
Tries to downcast to a subclass or interface implementor T. Read more
Tries to downcast to a reference of its subclass or interface implementor T. Read more
Tries to cast to an object of type T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read more
Tries to cast to reference to an object of type T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read more
Casts to T unconditionally. Read more
Casts to &T unconditionally. Read more
Returns true if the object is an instance of (can be cast to) T.
pub fn set_property<'a, N, V>(
&self,
property_name: N,
value: V
) -> Result<(), BoolError> where
N: Into<&'a str>,
V: ToValue,
pub fn set_property_from_value<'a, N>(
&self,
property_name: N,
value: &Value
) -> Result<(), BoolError> where
N: Into<&'a str>,
pub fn set_properties_from_value(
&self,
property_values: &[(&str, Value)]
) -> Result<(), BoolError>
pub fn has_property<'a, N>(&self, property_name: N, type_: Option<Type>) -> bool where
N: Into<&'a str>,
pub fn find_property<'a, N>(&self, property_name: N) -> Option<ParamSpec> where
N: Into<&'a str>,
Safety Read more
Safety Read more
Safety Read more
Safety Read more
pub fn connect<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
N: Into<&'a str>,
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
Same as connect but takes a SignalId instead of a signal name.
pub fn connect_local<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
N: Into<&'a str>,
F: 'static + Fn(&[Value]) -> Option<Value>,
Same as connect_local but takes a SignalId instead of a signal name.
pub unsafe fn connect_unsafe<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
N: Into<&'a str>,
F: Fn(&[Value]) -> Option<Value>,
Same as connect_unsafe but takes a SignalId instead of a signal name.
Emit signal by signal id.
Same as emit but takes Value for the arguments.
Emit signal by its name.
Same as emit_by_name but takes Value for the arguments.
Emit signal with details by signal id.
Same as emit_with_details but takes Value for the arguments.
pub fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec) + Send + Sync,
pub fn connect_notify_local<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec),
pub unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: Fn(&T, &ParamSpec),
pub fn bind_property<'a, O, N, M>(
&'a self,
source_property: N,
target: &'a O,
target_property: M
) -> BindingBuilder<'a> where
O: ObjectType,
N: Into<&'a str>,
M: Into<&'a str>,
Returns a SendValue clone of self.