### Class

# Adw ExpanderRow

#### Description [src]

    class Adw.ExpanderRow : Adw.PreferencesRow
      implements Gtk.Accessible, Gtk.Actionable, Gtk.Buildable, Gtk.ConstraintTarget {
      /* No available fields */
    }

A `GtkListBoxRow` used to reveal widgets.

The `AdwExpanderRow` widget allows the user to reveal or hide widgets below it. It also allows the user to enable the expansion of the row, allowing to disable all that the row contains.

## AdwExpanderRow as GtkBuildable

The `AdwExpanderRow` implementation of the `GtkBuildable` interface supports adding a child as an suffix widget by specifying “suffix” as the “type” attribute of a <child> element.

It also supports adding it as a prefix widget by specifying “prefix” as the “type” attribute of a <child> element.

## CSS nodes

`AdwExpanderRow` has a main CSS node with name `row` and the `.expander` style class. It has the `.empty` style class when it contains no children.

It contains the subnodes `row.header` for its main embedded row, `list.nested` for the list it can expand, and `image.expander-row-arrow` for its arrow.

## Style classes

`AdwExpanderRow` can use the `.` style class to emphasize the row subtitle instead of the row title, which is useful for displaying read-only properties.

When used together with the `.monospace` style class, only the subtitle becomes monospace, not the title or any extra widgets.

#### Ancestors

- AdwPreferencesRow
- GtkListBoxRow
- GtkWidget
- GInitiallyUnowned
- GObject

#### Implements

- GtkAccessible
- GtkActionable
- GtkBuildable
- GtkConstraintTarget

#### Constructors

###### adw_expander_row_new

Creates a new `AdwExpanderRow`.

#### Instance methods

###### adw_expander_row_add_action

Adds an action widget to `self`.

deprecated: 1.4

###### adw_expander_row_add_prefix

Adds a prefix widget to `self`.

###### adw_expander_row_add_row

Adds a widget to `self`.

###### adw_expander_row_add_suffix

Adds an suffix widget to `self`.

since: 1.4

###### adw_expander_row_get_enable_expansion

Gets whether the expansion of `self` is enabled.

###### adw_expander_row_get_expanded

Gets whether `self` is expanded.

###### adw_expander_row_get_icon_name

Gets the icon name for `self`.

deprecated: 1.3

###### adw_expander_row_get_show_enable_switch

Gets whether the switch enabling the expansion of `self` is visible.

###### adw_expander_row_get_subtitle

Gets the subtitle for `self`.

###### adw_expander_row_get_subtitle_lines

Gets the number of lines at the end of which the subtitle label will be ellipsized.

since: 1.3

###### adw_expander_row_get_title_lines

Gets the number of lines at the end of which the title label will be ellipsized.

since: 1.3

###### adw_expander_row_remove

Removes a child from `self`.

###### adw_expander_row_set_enable_expansion

Sets whether the expansion of `self` is enabled.

###### adw_expander_row_set_expanded

Sets whether `self` is expanded.

###### adw_expander_row_set_icon_name

Sets the icon name for `self`.

deprecated: 1.3

###### adw_expander_row_set_show_enable_switch

Sets whether the switch enabling the expansion of `self` is visible.

###### adw_expander_row_set_subtitle

Sets the subtitle for `self`.

###### adw_expander_row_set_subtitle_lines

Sets the number of lines at the end of which the subtitle label will be ellipsized.

since: 1.3

###### adw_expander_row_set_title_lines

Sets the number of lines at the end of which the title label will be ellipsized.

since: 1.3

##### Methods inherited from AdwPreferencesRow (8)

###### adw_preferences_row_get_title

Gets the title of the preference represented by `self`.

###### adw_preferences_row_get_title_selectable

Gets whether the user can copy the title from the label.

since: 1.1

###### adw_preferences_row_get_use_markup

Gets whether to use Pango markup for the title label.

since: 1.2

###### adw_preferences_row_get_use_underline

Gets whether an embedded underline in the title indicates a mnemonic.

###### adw_preferences_row_set_title

Sets the title of the preference represented by `self`.

###### adw_preferences_row_set_title_selectable

Sets whether the user can copy the title from the label.

since: 1.1

###### adw_preferences_row_set_use_markup

Sets whether to use Pango markup for the title label.

since: 1.2

###### adw_preferences_row_set_use_underline

Sets whether an embedded underline in the title indicates a mnemonic.

##### Methods inherited from GtkListBoxRow (11)

###### gtk_list_box_row_changed

Marks `row` as changed, causing any state that depends on this to be updated.

###### gtk_list_box_row_get_activatable

Gets whether the row is activatable.

###### gtk_list_box_row_get_child

Gets the child widget of `row`.

###### gtk_list_box_row_get_header

Returns the current header of the `row`.

###### gtk_list_box_row_get_index

Gets the current index of the `row` in its `GtkListBox` container.

###### gtk_list_box_row_get_selectable

Gets whether the row can be selected.

###### gtk_list_box_row_is_selected

Returns whether the child is currently selected in its `GtkListBox` container.

###### gtk_list_box_row_set_activatable

Set whether the row is activatable.

###### gtk_list_box_row_set_child

Sets the child widget of `self`.

###### gtk_list_box_row_set_header

Sets the current header of the `row`.

###### gtk_list_box_row_set_selectable

Set whether the row can be selected.

##### Methods inherited from GtkWidget (164)

Please see GtkWidget for a full list of methods.

##### Methods inherited from GObject (43)

Please see GObject for a full list of methods.

##### Methods inherited from GtkAccessible (21)

###### gtk_accessible_announce

Requests the user’s screen reader to announce the given message.

###### gtk_accessible_get_accessible_id

Retrieves the accessible identifier for the accessible object.

###### gtk_accessible_get_accessible_parent

Retrieves the accessible parent for an accessible object.

###### gtk_accessible_get_accessible_role

Retrieves the accessible role of an accessible object.

###### gtk_accessible_get_at_context

Retrieves the implementation for the given accessible object.

###### gtk_accessible_get_bounds

Queries the coordinates and dimensions of this accessible.

###### gtk_accessible_get_first_accessible_child

Retrieves the first accessible child of an accessible object.

###### gtk_accessible_get_next_accessible_sibling

Retrieves the next accessible sibling of an accessible object.

###### gtk_accessible_get_platform_state

Queries a platform state, such as focus.

###### gtk_accessible_reset_property

Resets the accessible property to its default value.

###### gtk_accessible_reset_relation

Resets the accessible relation to its default value.

###### gtk_accessible_reset_state

Resets the accessible state to its default value.

###### gtk_accessible_set_accessible_parent

Sets the parent and sibling of an accessible object.

###### gtk_accessible_update_next_accessible_sibling

Updates the next accessible sibling.

###### gtk_accessible_update_platform_state

Informs ATs that the platform state has changed.

###### gtk_accessible_update_property

Updates a list of accessible properties.

###### gtk_accessible_update_property_value

Updates an array of accessible properties.

###### gtk_accessible_update_relation

Updates a list of accessible relations.

###### gtk_accessible_update_relation_value

Updates an array of accessible relations.

###### gtk_accessible_update_state

Updates a list of accessible states.

###### gtk_accessible_update_state_value

Updates an array of accessible states.

##### Methods inherited from GtkActionable (6)

###### gtk_actionable_get_action_name

Gets the action name for `actionable`.

###### gtk_actionable_get_action_target_value

Gets the current target value of `actionable`.

###### gtk_actionable_set_action_name

Specifies the name of the action with which this widget should be associated.

###### gtk_actionable_set_action_target

Sets the target of an actionable widget.

###### gtk_actionable_set_action_target_value

Sets the target value of an actionable widget.

###### gtk_actionable_set_detailed_action_name

Sets the action-name and associated string target value of an actionable widget.

##### Methods inherited from GtkBuildable (1)

###### gtk_buildable_get_buildable_id

Gets the ID of the `buildable` object.

#### Properties

###### Adw.ExpanderRow:enable-expansion

Whether expansion is enabled.

###### Adw.ExpanderRow:expanded

Whether the row is expanded.

###### Adw.ExpanderRow:icon-name

The icon name for this row.

deprecated: 1.3

###### Adw.ExpanderRow:show-enable-switch

Whether the switch enabling the expansion is visible.

###### Adw.ExpanderRow:subtitle

The subtitle for this row.

###### Adw.ExpanderRow:subtitle-lines

The number of lines at the end of which the subtitle label will be ellipsized.

since: 1.3

###### Adw.ExpanderRow:title-lines

The number of lines at the end of which the title label will be ellipsized.

since: 1.3

##### Properties inherited from AdwPreferencesRow (4)

###### Adw.PreferencesRow:title

The title of the preference represented by this row.

###### Adw.PreferencesRow:title-selectable

Whether the user can copy the title from the label.

since: 1.1

###### Adw.PreferencesRow:use-markup

Whether to use Pango markup for the title label.

since: 1.2

###### Adw.PreferencesRow:use-underline

Whether an embedded underline in the title indicates a mnemonic.

##### Properties inherited from GtkListBoxRow (3)

###### Gtk.ListBoxRow:activatable

Determines whether the ::row-activated signal will be emitted for this row.

###### Gtk.ListBoxRow:child

The child widget.

###### Gtk.ListBoxRow:selectable

Determines whether this row can be selected.

##### Properties inherited from GtkWidget (35)

###### Gtk.Widget:can-focus

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

###### Gtk.Widget:can-target

Whether the widget can receive pointer events.

###### Gtk.Widget:css-classes

A list of css classes applied to this widget.

###### Gtk.Widget:css-name

The name of this widget in the CSS tree.

###### Gtk.Widget:cursor

The cursor used by `widget`.

###### Gtk.Widget:focus-on-click

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

###### Gtk.Widget:focusable

Whether this widget itself will accept the input focus.

###### Gtk.Widget:halign

How to distribute horizontal space if widget gets extra space.

###### Gtk.Widget:has-default

Whether the widget is the default widget.

###### Gtk.Widget:has-focus

Whether the widget has the input focus.

###### Gtk.Widget:has-tooltip

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

###### Gtk.Widget:height-request

Overrides for height request of the widget.

###### Gtk.Widget:hexpand

Whether to expand horizontally.

###### Gtk.Widget:hexpand-set

Whether to use the `hexpand` property.

###### Gtk.Widget:layout-manager

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

###### Gtk.Widget:limit-events

Makes this widget act like a modal dialog, with respect to event delivery.

###### Gtk.Widget:margin-bottom

Margin on bottom side of widget.

###### Gtk.Widget:margin-end

Margin on end of widget, horizontally.

###### Gtk.Widget:margin-start

Margin on start of widget, horizontally.

###### Gtk.Widget:margin-top

Margin on top side of widget.

###### Gtk.Widget:name

The name of the widget.

###### Gtk.Widget:opacity

The requested opacity of the widget.

###### Gtk.Widget:overflow

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

###### Gtk.Widget:parent

The parent widget of this widget.

###### Gtk.Widget:receives-default

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

###### Gtk.Widget:root

The `GtkRoot` widget of the widget tree containing this widget.

###### Gtk.Widget:scale-factor

The scale factor of the widget.

###### Gtk.Widget:sensitive

Whether the widget responds to input.

###### Gtk.Widget:tooltip-markup

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

###### Gtk.Widget:tooltip-text

Sets the text of tooltip to be the given string.

###### Gtk.Widget:valign

How to distribute vertical space if widget gets extra space.

###### Gtk.Widget:vexpand

Whether to expand vertically.

###### Gtk.Widget:vexpand-set

Whether to use the `vexpand` property.

###### Gtk.Widget:visible

Whether the widget is visible.

###### Gtk.Widget:width-request

Overrides for width request of the widget.

##### Properties inherited from GtkAccessible (1)

###### Gtk.Accessible:accessible-role

The accessible role of the given `GtkAccessible` implementation.

##### Properties inherited from GtkActionable (2)

###### Gtk.Actionable:action-name

The name of the action with which this widget should be associated.

###### Gtk.Actionable:action-target

The target value of the actionable widget’s action.

#### Signals

##### Signals inherited from GtkListBoxRow (1)

###### GtkListBoxRow::activate

This is a keybinding signal, which will cause this row to be activated.

##### Signals inherited from GtkWidget (13)

###### GtkWidget::destroy

Signals that all holders of a reference to the widget should release the reference that they hold.

###### GtkWidget::direction-changed

Emitted when the text direction of a widget changes.

###### GtkWidget::hide

Emitted when `widget` is hidden.

###### GtkWidget::keynav-failed

Emitted if keyboard navigation fails.

###### GtkWidget::map

Emitted when `widget` is going to be mapped.

###### GtkWidget::mnemonic-activate

Emitted when a widget is activated via a mnemonic.

###### GtkWidget::move-focus

Emitted when the focus is moved.

###### GtkWidget::query-tooltip

Emitted when the widget’s tooltip is about to be shown.

###### GtkWidget::realize

Emitted when `widget` is associated with a `GdkSurface`.

###### GtkWidget::show

Emitted when `widget` is shown.

###### GtkWidget::state-flags-changed

Emitted when the widget state changes.

###### GtkWidget::unmap

Emitted when `widget` is going to be unmapped.

###### GtkWidget::unrealize

Emitted when the `GdkSurface` associated with `widget` is destroyed.

##### Signals inherited from GObject (1)

###### GObject::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

#### Class structure

    struct AdwExpanderRowClass {
      AdwPreferencesRowClass parent_class;

    }

No description available.

###### Class members

`parent_class: AdwPreferencesRowClass`

  The parent class.