dioxus-swdir-tree-core

The framework-free state machine behind dioxus-swdir-tree: a lazily loading, searchable, drag-and-drop-aware directory tree over swdir.

This crate depends only on swdir — no Dioxus, no GUI framework — so it is testable anywhere and reusable from other frontends. Most applications should depend on the flagship dioxus-swdir-tree crate instead.

What's inside

• DirectoryTree / TreeNode — the tree, the four toggle cases, and the flat visible_rows() draw model used by every consumer.
• ScanRequest / LoadPayload / scan::run — side effects as data; the embedding layer decides where blocking scans run.
• ScanExecutor / ThreadExecutor — pluggable async scan dispatch.
• DisplayFilter / TreeCache — zero-I/O filter switching with a raw-entry cache.
• SelectionMode / on_selected — insertion-ordered multi-selection with Replace, Toggle, and ExtendRange modes.
• handle_key / TreeKey / Modifiers — read-only keyboard navigation over visible_rows().
• DragMsg / DragOutcome / on_drag_msg — press → hover → release drag protocol; emits DragCompleted { sources, destination }.
• Prefetch — with_prefetch_limit, DEFAULT_PREFETCH_SKIP, parallel speculative pre-expansion.
• set_search_query / SearchState — incremental basename substring search that sees through collapsed subtrees, zero I/O.
• IconTheme / IconRole / UnicodeTheme — pluggable icon rendering; LucideTheme available behind the icons feature.

License: Apache-2.0.