Struct gtk4::SearchBar

pub struct SearchBar { /* private fields */ }

SearchBar is a container made to have a search entry.

It can also contain additional widgets, such as drop-down menus, or buttons. The search bar would appear when a search is started through typing on the keyboard, or the application’s search mode is toggled on.

For keyboard presses to start a search, the search bar must be told of a widget to capture key events from through set_key_capture_widget(). This widget will typically be the top-level window, or a parent container of the search bar. Common shortcuts such as Ctrl+F should be handled as an application action, or through the menu items.

You will also need to tell the search bar about which entry you are using as your search entry using connect_entry().

Creating a search bar

The following example shows you how to create a more complex search entry.

A simple example

CSS nodes

searchbar
╰── revealer
    ╰── box
         ├── [child]
         ╰── [button.close]

SearchBar has a main CSS node with name searchbar. It has a child node with name revealer that contains a node with name box. The box node contains both the CSS node of the child widget as well as an optional button node which gets the .close style class applied.

Accessibility

SearchBar uses the AccessibleRole::Search role.

Properties

child

The child widget.

Readable | Writeable | Construct

key-capture-widget

The key capture widget.

Readable | Writeable | Construct

search-mode-enabled

Whether the search mode is on and the search bar shown.

Readable | Writeable

show-close-button

Whether to show the close button in the search bar.

Readable | Writeable | Construct

Widget

can-focus

Whether the widget or any of its descendents can accept the input focus.

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable

can-target

Whether the widget can receive pointer events.

Readable | Writeable

css-classes

A list of css classes applied to this widget.

Readable | Writeable

css-name

The name of this widget in the CSS tree.

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable | Construct Only

cursor

The cursor used by @widget.

Readable | Writeable

focus-on-click

Whether the widget should grab focus when it is clicked with the mouse.

This property is only relevant for widgets that can take focus.

Readable | Writeable

focusable

Whether this widget itself will accept the input focus.

Readable | Writeable

halign

How to distribute horizontal space if widget gets extra space.

Readable | Writeable

has-default

Whether the widget is the default widget.

Readable

has-focus

Whether the widget has the input focus.

Readable

has-tooltip

Enables or disables the emission of the ::query-tooltip signal on @widget.

A value of true indicates that @widget can have a tooltip, in this case the widget will be queried using query-tooltip to determine whether it will provide a tooltip or not.

Readable | Writeable

height-request

Override for height request of the widget.

If this is -1, the natural request will be used.

Readable | Writeable

hexpand

Whether to expand horizontally.

Readable | Writeable

hexpand-set

Whether to use the hexpand property.

Readable | Writeable

layout-manager

The LayoutManager instance to use to compute the preferred size of the widget, and allocate its children.

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable

margin-bottom

Margin on bottom side of widget.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Readable | Writeable

margin-end

Margin on end of widget, horizontally.

This property supports left-to-right and right-to-left text directions.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Readable | Writeable

margin-start

Margin on start of widget, horizontally.

This property supports left-to-right and right-to-left text directions.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Readable | Writeable

margin-top

Margin on top side of widget.

This property adds margin outside of the widget’s normal size request, the margin will be added in addition to the size from WidgetExt::set_size_request() for example.

Readable | Writeable

name

The name of the widget.

Readable | Writeable

opacity

The requested opacity of the widget.

Readable | Writeable

overflow

How content outside the widget’s content area is treated.

This property is meant to be set by widget implementations, typically in their instance init function.

Readable | Writeable

parent

The parent widget of this widget.

Readable

receives-default

Whether the widget will receive the default action when it is focused.

Readable | Writeable

root

The Root widget of the widget tree containing this widget.

This will be None if the widget is not contained in a root widget.

Readable

scale-factor

The scale factor of the widget.

Readable

sensitive

Whether the widget responds to input.

Readable | Writeable

tooltip-markup

Sets the text of tooltip to be the given string, which is marked up with Pango markup.

Also see Tooltip::set_markup().

This is a convenience property which will take care of getting the tooltip shown if the given string is not None: has-tooltip will automatically be set to true and there will be taken care of query-tooltip in the default signal handler.

Note that if both tooltip-text and tooltip-markup are set, the last one wins.

Readable | Writeable

tooltip-text

Sets the text of tooltip to be the given string.

Also see Tooltip::set_text().

This is a convenience property which will take care of getting the tooltip shown if the given string is not None: has-tooltip will automatically be set to true and there will be taken care of query-tooltip in the default signal handler.

Note that if both tooltip-text and tooltip-markup are set, the last one wins.

Readable | Writeable

valign

How to distribute vertical space if widget gets extra space.

Readable | Writeable

vexpand

Whether to expand vertically.

Readable | Writeable

vexpand-set

Whether to use the vexpand property.

Readable | Writeable

visible

Whether the widget is visible.

Readable | Writeable

width-request

Override for width request of the widget.

If this is -1, the natural request will be used.

Readable | Writeable

Accessible

accessible-role

The accessible role of the given Accessible implementation.

The accessible role cannot be changed once set.

Readable | Writeable

Implements

WidgetExt, [trait@glib::ObjectExt], AccessibleExt, BuildableExt, ConstraintTargetExt, WidgetExtManual, AccessibleExtManual

Implementations

impl SearchBar

pub fn new() -> SearchBar

Creates a SearchBar.

You will need to tell it about which widget is going to be your text entry using connect_entry().

Returns

a new SearchBar

pub fn builder() -> SearchBarBuilder

Creates a new builder-pattern struct instance to construct SearchBar objects.

This method returns an instance of SearchBarBuilder which can be used to create SearchBar objects.

pub fn connect_entry(&self, entry: &impl IsA<Editable>)

Connects the Editable widget passed as the one to be used in this search bar.

The entry should be a descendant of the search bar. Calling this function manually is only required if the entry isn’t the direct child of the search bar (as in our main example).

entry

a Editable

pub fn child(&self) -> Option<Widget>

Gets the child widget of @self.

Returns

the child widget of @self

pub fn key_capture_widget(&self) -> Option<Widget>

Gets the widget that @self is capturing key events from.

Returns

The key capture widget.

pub fn is_search_mode(&self) -> bool

Returns whether the search mode is on or off.

Returns

whether search mode is toggled on

pub fn shows_close_button(&self) -> bool

Returns whether the close button is shown.

Returns

whether the close button is shown

pub fn set_child(&self, child: Option<&impl IsA<Widget>>)

Sets the child widget of @self.

child

the child widget

pub fn set_key_capture_widget(&self, widget: Option<&impl IsA<Widget>>)

Sets @widget as the widget that @self will capture key events from.

If key events are handled by the search bar, the bar will be shown, and the entry populated with the entered text.

Note that despite the name of this function, the events are only ‘captured’ in the bubble phase, which means that editable child widgets of @widget will receive text input before it gets captured. If that is not desired, you can capture and forward the events yourself with EventControllerKey::forward().

widget

a Widget

pub fn set_search_mode(&self, search_mode: bool)

Switches the search mode on or off.

search_mode

the new state of the search mode

pub fn set_show_close_button(&self, visible: bool)

Shows or hides the close button.

Applications that already have a “search” toggle button should not show a close button in their search bar, as it duplicates the role of the toggle button.

visible

whether the close button will be shown or not

pub fn connect_child_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

pub fn connect_key_capture_widget_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

pub fn connect_search_mode_enabled_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

pub fn connect_show_close_button_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

Trait Implementations

impl Clone for SearchBar

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SearchBar

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

Formats the value using the given formatter.

impl Default for SearchBar

fn default() -> Self

Returns the “default value” for a type.

impl HasParamSpec for SearchBar

type ParamSpec = ParamSpecObject

type SetValue = SearchBar

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, SearchBar>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for SearchBar

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

where H: Hasher,

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for SearchBar

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl ParentClassIs for SearchBar

type Parent = Widget

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

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

This method tests for self and other values to be equal, and is used by ==.

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.

impl<OT: ObjectType> PartialOrd<OT> for SearchBar

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

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl StaticType for SearchBar

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for SearchBar

impl IsA<Accessible> for SearchBar

impl IsA<Buildable> for SearchBar

impl IsA<ConstraintTarget> for SearchBar

impl IsA<Widget> for SearchBar