280 lines
6.9 KiB
Markdown
280 lines
6.9 KiB
Markdown
**STRUCT**
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# `ComboRow`
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A [class@Gtk.ListBoxRow] used to choose from a list of items.
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<picture><source srcset="combo-row-dark.png" media="(prefers-color-scheme: dark)"><img src="combo-row.png" alt="combo-row"></picture>
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The `AdwComboRow` widget allows the user to choose from a list of valid
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choices. The row displays the selected choice. When activated, the row
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displays a popover which allows the user to make a new choice.
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Example of an `AdwComboRow` UI definition:
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```xml
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<object class="AdwComboRow"><property name="title" translatable="yes">Combo Row</property><property name="model"><object class="GtkStringList"><items><item translatable="yes">Foo</item><item translatable="yes">Bar</item><item translatable="yes">Baz</item></items></object></property></object>
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```
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The [property@ComboRow:selected] and [property@ComboRow:selected-item]
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properties can be used to keep track of the selected item and react to their
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changes.
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`AdwComboRow` mirrors [class@Gtk.DropDown], see that widget for details.
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`AdwComboRow` is [property@Gtk.ListBoxRow:activatable] if a model is set.
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## CSS nodes
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`AdwComboRow` has a main CSS node with name `row` and the `.combo` style
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class.
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Its popover has the node named `popover` with the `.menu` style class, it
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contains a [class@Gtk.ScrolledWindow], which in turn contains a
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[class@Gtk.ListView], both are accessible via their regular nodes.
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## Accessibility
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`AdwComboRow` uses the `GTK_ACCESSIBLE_ROLE_COMBO_BOX` role.
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## Properties
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### `updateFunctions`
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Additional update functions for type extensions.
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### `appearFunctions`
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Additional appear functions for type extensions.
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### `enableSearch`
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Whether to show a search entry in the popup.
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If set to `TRUE`, a search entry will be shown in the popup that
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allows to search for items in the list.
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Search requires [property@ComboRow:expression] to be set.
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### `selected`
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The position of the selected item.
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If no item is selected, the property has the value
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[const@Gtk.INVALID_LIST_POSITION]
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### `useSubtitle`
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Whether to use the current value as the subtitle.
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If you use a custom list item factory, you will need to give the row a
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name conversion expression with [property@ComboRow:expression].
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If set to `TRUE`, you should not access [property@ActionRow:subtitle].
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The subtitle is interpreted as Pango markup if
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[property@PreferencesRow:use-markup] is set to `TRUE`.
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### `activatableWidget`
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The widget to activate when the row is activated.
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The row can be activated either by clicking on it, calling
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[method@ActionRow.activate], or via mnemonics in the title.
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See the [property@PreferencesRow:use-underline] property to enable
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mnemonics.
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The target widget will be activated by emitting the
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[signal@Gtk.Widget::mnemonic-activate] signal on it.
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### `iconName`
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The icon name for this row.
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### `subtitle`
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The subtitle for this row.
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The subtitle is interpreted as Pango markup unless
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[property@PreferencesRow:use-markup] is set to `FALSE`.
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### `subtitleLines`
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The number of lines at the end of which the subtitle label will be
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ellipsized.
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If the value is 0, the number of lines won't be limited.
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### `subtitleSelectable`
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Whether the user can copy the subtitle from the label.
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See also [property@Gtk.Label:selectable].
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### `titleLines`
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The number of lines at the end of which the title label will be ellipsized.
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If the value is 0, the number of lines won't be limited.
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### `title`
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The title of the preference represented by this row.
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The title is interpreted as Pango markup unless
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[property@PreferencesRow:use-markup] is set to `FALSE`.
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### `titleSelectable`
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Whether the user can copy the title from the label.
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See also [property@Gtk.Label:selectable].
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### `useMarkup`
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Whether to use Pango markup for the title label.
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Subclasses may also use it for other labels, such as subtitle.
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See also [func@Pango.parse_markup].
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### `useUnderline`
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Whether an embedded underline in the title indicates a mnemonic.
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### `activated`
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This signal is emitted after the row has been activated.
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### `suffix`
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The body for the widget "suffix".
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### `prefix`
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The body for the widget "prefix".
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### `app`
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The application.
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### `window`
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The window.
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## Methods
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### `init()`
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Initialize `ComboRow`.
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### `container(modifiers:)`
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Get the widget's view storage.
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- Parameter modifiers: The view modifiers.
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- Returns: The view storage.
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### `update(_:modifiers:updateProperties:)`
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Update the widget's view storage.
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- Parameters:
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- storage: The view storage.
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- modifiers: The view modifiers.
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- updateProperties: Whether to update the view's properties.
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### `enableSearch(_:)`
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Whether to show a search entry in the popup.
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If set to `TRUE`, a search entry will be shown in the popup that
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allows to search for items in the list.
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Search requires [property@ComboRow:expression] to be set.
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### `selected(_:)`
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The position of the selected item.
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If no item is selected, the property has the value
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[const@Gtk.INVALID_LIST_POSITION]
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### `useSubtitle(_:)`
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Whether to use the current value as the subtitle.
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If you use a custom list item factory, you will need to give the row a
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name conversion expression with [property@ComboRow:expression].
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If set to `TRUE`, you should not access [property@ActionRow:subtitle].
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The subtitle is interpreted as Pango markup if
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[property@PreferencesRow:use-markup] is set to `TRUE`.
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### `activatableWidget(_:)`
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The widget to activate when the row is activated.
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The row can be activated either by clicking on it, calling
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[method@ActionRow.activate], or via mnemonics in the title.
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See the [property@PreferencesRow:use-underline] property to enable
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mnemonics.
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The target widget will be activated by emitting the
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[signal@Gtk.Widget::mnemonic-activate] signal on it.
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### `iconName(_:)`
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The icon name for this row.
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### `subtitle(_:)`
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The subtitle for this row.
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The subtitle is interpreted as Pango markup unless
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[property@PreferencesRow:use-markup] is set to `FALSE`.
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### `subtitleLines(_:)`
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The number of lines at the end of which the subtitle label will be
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ellipsized.
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If the value is 0, the number of lines won't be limited.
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### `subtitleSelectable(_:)`
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Whether the user can copy the subtitle from the label.
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See also [property@Gtk.Label:selectable].
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### `titleLines(_:)`
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The number of lines at the end of which the title label will be ellipsized.
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If the value is 0, the number of lines won't be limited.
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### `title(_:)`
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The title of the preference represented by this row.
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The title is interpreted as Pango markup unless
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[property@PreferencesRow:use-markup] is set to `FALSE`.
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### `titleSelectable(_:)`
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Whether the user can copy the title from the label.
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See also [property@Gtk.Label:selectable].
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### `useMarkup(_:)`
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Whether to use Pango markup for the title label.
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Subclasses may also use it for other labels, such as subtitle.
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See also [func@Pango.parse_markup].
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### `useUnderline(_:)`
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Whether an embedded underline in the title indicates a mnemonic.
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### `activated(_:)`
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This signal is emitted after the row has been activated.
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