WAI-ARIA APG Window Splitter Pattern
Defines a window splitter as a moveable separator between panes, with focusable separator role, accessible pane naming, aria-valuenow, aria-valuemin, aria-valuemax, orientation, arrow-key resizing, Enter collapse or restore behavior, and optional Home and End movement.
What this source can teach
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Pattern Decisions This Source Supports
| Pattern | Supported decision | Required contract | Claim note |
|---|---|---|---|
| User-controlled layout | Choose user-controlled layout when users choose the arrangement, visibility, or order of workspace regions around the same task object. | Changing layout rearranges regions but does not change the active record, dataset, filters, columns, sort, density, theme, or saved view unless the user explicitly chooses those changes. | Supports accessible pane resizing, collapse, restore, orientation, and keyboard behavior used inside layout-changing workspaces. |
| Window splitter | Choose window splitter when adjacent panes are both part of the same durable workspace and users need control over their relative sizes. | The splitter separates two named panes and communicates which pane size its value represents. | APG defines window splitter behavior, role separator use, value attributes, orientation, keyboard resizing, collapse or restore, and pane naming. |
Comparisons supported by this source
- User-controlled layout vs custom dashboard vs dashboard layout vs saved view vs window splitter
WAI-ARIA defines accessible splitter behavior that informs, but does not fully replace, broader user-controlled layout choices.
- Window splitter vs details panel vs drawer vs side navigation
APG defines window splitter semantics, value attributes, orientation, keyboard resizing, collapse or restore, and pane naming.
Evidence Role
This source is treated as spec evidence. Its value comes from the specific claims and setting described above.
Publisher: W3C WAI. Last checked: .