Struct gtk4::LinkButton [−][src]
pub struct LinkButton(_);Expand description
A LinkButton is a button with a hyperlink.
It is useful to show quick links to resources.
A link button is created by calling either new() or
with_label(). If using the former, the URI you
pass to the constructor is used as a label for the widget.
The URI bound to a LinkButton can be set specifically using
set_uri().
By default, LinkButton calls show_uri() when the button
is clicked. This behaviour can be overridden by connecting to the
signal::LinkButton::activate-link signal and returning true from
the signal handler.
CSS nodes
LinkButton has a single CSS node with name button. To differentiate
it from a plain Button, it gets the .link style class.
Accessibility
LinkButton uses the AccessibleRole::Link role.
Implements
ButtonExt, WidgetExt, glib::ObjectExt, AccessibleExt, BuildableExt, ConstraintTargetExt, ActionableExt, WidgetExtManual, AccessibleExtManual, ActionableExtManual
Implementations
Creates a new LinkButton with the URI as its text.
uri
a valid URI
Returns
a new link button widget.
Creates a new LinkButton containing a label.
uri
a valid URI
label
the text of the button
Returns
a new link button widget.
Creates a new builder-pattern struct instance to construct LinkButton objects.
This method returns an instance of LinkButtonBuilder which can be used to create LinkButton objects.
Retrieves the URI of the LinkButton.
Returns
a valid URI. The returned string is owned by the link button and should not be modified or freed.
Retrieves the “visited” state of the LinkButton.
The button becomes visited when it is clicked. If the URI is changed on the button, the “visited” state is unset again.
The state may also be changed using set_visited().
Returns
Sets uri as the URI where the LinkButton points.
As a side-effect this unsets the “visited” state of the button.
uri
a valid URI
Sets the “visited” state of the LinkButton.
See is_visited() for more details.
visited
the new “visited” state
pub fn connect_activate_link<F: Fn(&Self) -> Inhibit + 'static>(
&self,
f: F
) -> SignalHandlerId
pub fn connect_activate_link<F: Fn(&Self) -> Inhibit + 'static>(
&self,
f: F
) -> SignalHandlerId
Emitted each time the LinkButton is clicked.
The default handler will call show_uri() with the URI
stored inside the property::LinkButton::uri property.
To override the default behavior, you can connect to the
::activate-link signal and stop the propagation of the signal
by returning true from your handler.
Returns
true if the signal has been handled
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 LinkButton
impl !Send for LinkButton
impl !Sync for LinkButton
impl Unpin for LinkButton
impl UnwindSafe for LinkButton
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.