A layout component for splitting a space into resizable, nestable panes with draggable handles.
Whether a resize is currently in progress anywhere in the split.
Whether any boundary in the split can be moved. False when the split is not resizable, and when every resizer is individually inert.
Gets the axis panes are laid out and resized along.
Gets a scoped test helper for a pane by zero-based index.
Gets the number of panes, hidden ones included — a hidden pane stays mounted.
Gets a scoped test helper for each pane, in DOM order.
Gets each pane's share of the split, as percentages of the space available to panes, in DOM order. Hidden panes report 0. The values are measured, so round them before asserting exact shares.
Gets the text content of each pane, in DOM order.
Gets a scoped test helper for a resizer by zero-based index.
Gets the number of resizers.
Gets a scoped test helper for each resizer, in DOM order.
Whether the split resizable state matches the expected state.