xent-kit

Platform-agnostic declarative UI toolkit for the Xent framework, written in C17. xent-kit provides the Elm-architecture runtime, virtual DOM reconciler, and element API that all Xent backends share.

Architecture

• Element layer (xtk_el.h) — declarative element constructors (xtk_button, xtk_text, xtk_column, etc.) that build a per-frame element tree on an arena.
• Reconciler (xtk_reconcile.h) — diffs the previous and current element trees, mounts/unmounts/reorders nodes through an XtkBackend vtable, and patches props in place. Supports keyed identity for stable reorder.
• Runtime (xtk_runtime.h) — message queue, frame pump, and the Elm update/view loop. Backends call xtk_runtime_frame() each frame; the runtime drains messages, calls update, rebuilds the view, and reconciles.
• Backend vtable (XtkBackend) — 9 function pointers that a platform backend implements: create, destroy, apply_props, mount_setup, is_interactive, request_frame, pre_unmount, node_cleanup, binding_create. Write it once in xent-kit, implement it per platform.

Backends

Backend	Platform	Repo
fluxent	Windows (D3D11/D2D/DComp)	fluxent

Build

xmake                    # build library + tests
xmake run test_xtk_el    # run element layer tests

Requires a C17 compiler and xmake.

Dependencies

• xent-core

License

0BSD