The abstract base class for GTK's list widgets.

Shortcuts and Gestures

`GtkListBase` supports the following keyboard shortcuts:

• <kbd>Ctrl</kbd>+<kbd>A</kbd> or <kbd>Ctrl</kbd>+<kbd>&sol;</kbd> selects all items.
• <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>A</kbd> or <kbd>Ctrl</kbd>+<kbd>& bsol;</kbd> unselects all items.

The focused item is controlled by the navigation keys below, combined with the <kbd>Ctrl</kbd> modifier to prevent moving the selection, and the <kbd>Shift</kbd> modifier to extend the current selection.

• <kbd>←</kbd>, <kbd>→</kbd>, <kbd>↑</kbd>, <kbd>↓</kbd> move the focus on the next item in the designed direction.
• <kbd>Home</kbd> and <kbd>End</kbd> focus the first or last item.
• <kbd>PgUp</kbd> and <kbd>PgDn</kbd> move the focus one page up or down.

List item widgets support the following keyboard shortcuts:

• <kbd>Enter</kbd> activates the item.
• <kbd>␣</kbd> selects the item, with the same <kbd>Ctrl</kbd> and <kbd>Shift</kbd> modifiers combinations as the navigation keys.

Actions

`GtkListBase` defines a set of built-in actions:

• `list.scroll-to-item` moves the visible area to the item at given position with the minimum amount of scrolling required. If the item is already visible, nothing happens.
• `list.select-item` changes the selection.
• `list.select-all` selects all items in the model, if the selection model supports it.
• `list.unselect-all` unselects all items in the model, if the selection model supports it.

List item widgets install the following actions:

• `listitem.select` changes selection if the item is selectable.
• `listitem.scroll-to` moves the visible area of the list to this item with the minimum amount of scrolling required.