The scan/opening/status/error lines, offline mode and its retry, pinning a
collection offline, the sync and thumbnail-sweep state, and the callbacks
that route the grid to a rescan, a sync, another library, a panorama merge
or an export — the last of what AppWindow still carried under the
library- prefix — move onto the `Library` global started earlier on this
branch. Rust reaches them through window.global::<Library>() rather than
window.set_/get_/on_/invoke_ on the root.
library-visible is the one name that stays: it is computed from
active-page and active-view, the shell's own routing state, which a
global cannot read. AppWindow now declares no other library- property or
callback.
AppWindow carried the sidebar's tree, its row menu, renaming, drag and
drop between rows, the trash row, and the membership sheet as ~40
properties and callbacks on the root component, in the pattern CH-1
describes and the develop screen's globals (Adjustments, Framing, Steps,
...) already replaced. Collections.* in collections.slint now holds that
state, declared next to the MembershipRow struct it and the membership
sheet both use; Rust reaches it through window.global::<Collections>()
instead of window.set_/get_/on_/invoke_ on the root.
collection-selected, collection-select, and collection-offline-menu stay
on AppWindow: library_ui.rs invokes collection-select directly and
registers collection-offline-menu's handler, and lib.rs reads
collection-selected for back-navigation, so moving them would have meant
editing library_ui.rs, which another change on this branch is splitting
into a module directory. collections-visible stays too — it is
lib.rs's panel-layout state, seeded from the saved layout before the
sidebar exists, and collections_ui never touches it. Everything prefixed
library- (the grid's drag, selection and keyword state that the sidebar's
Rust also wires for cross-feature gestures like filing a selection into
a collection) stays on the window as well, since it belongs to the
library screen, not the sidebar.
collections_ui.rs had grown to 4,591 lines covering the sidebar controller,
the click/drag selection policy, tree refresh, the drag gesture, the trash
worker, twelve wiring functions, and the row's rename/create/context menu,
all in one file. Split into collections_ui/ with one module per area, the
way develop/ and library/ were already split on this branch:
- controller.rs: CollectionsController and the pure drop/delete/release
decisions (decide_drop, decide_delete, decide_release, menu_detail,
delete_warning) that a test can drive without a window.
- press.rs: PressUndo and the click-and-release selection policy
(apply_press, select_row, commit_press, cancel_press).
- tree_sync.rs: rebuilding the sidebar from the catalog and pushing
catalog-derived state into the grid (refresh_tree, offline_state,
sync_lifted/sync_selection/sync_reorderable/sync_badges,
refresh_membership, direct_holdings).
- drag.rs: the cursor bitmap (compose_drag_image, blit_scaled) and the
hold/spring timers (arm_hold, arm_spring, should_spring,
collapse_spring_opened) plus their delay constants.
- trash.rs: the soft delete (start_trash, start_restore, drain_trash,
stop_trash, refresh_trash, format_bytes).
- wiring_grid.rs / wiring_tree.rs: the wire() entry point and its twelve
wire_* functions, split in two because together they were the largest
single piece (grid-facing selection/drag/trash vs. sidebar-facing
navigation/create/rename/row-drag/menu/membership).
- rename_menu.rs: creating, naming and renaming collections, and the row's
context menu (apply_rename, create_child, unique_name, open_row_menu,
close_row_menu, close_rename).
mod.rs carries the module's own top-level doc comment, the `pub use`
re-exports for the eight items the rest of the crate reaches by
`collections_ui::` path (CollectionsController, wire, refresh_tree,
sync_badges, sync_selection, select_row, commit_press, cancel_press), and a
shared `test_support` for the one fixture (`ids`) more than one file's
tests needed. Every item that only crossed a boundary within this module,
not out of it, was narrowed to `pub(super)` rather than kept at the
crate-wide `pub` a single file gave it for free.
Extracted with a brace-aware pass that kept each item's own leading doc
comment and attributes attached to it, and tests moved with the code they
exercise; every TRACES/GESTURE comment lands on the same code it did
before. No file outside the new directory changed — lib.rs's `mod
collections_ui;` resolves to the directory automatically, and every
outside caller's `collections_ui::` path still resolves through mod.rs's
re-exports.
dtourolle