import type{LyraEventDetailSnapshot}from'../../../internal/lyra-element.js';import{type PropertyValues,type TemplateResult}from'lit';import{LyraElement}from'../../../internal/lyra-element.js';import'../../media/file-icon/file-icon.class.js';import'../../forms/input/input.class.js';import'../../forms/checkbox/checkbox.class.js';import'../../overlays/empty/empty.class.js';import{type LyraSize}from'../../../internal/variants.js';export interface LyraSourceEntry{id:string;label:string;
/** Drives the `lr-file-icon` badge. */
mimeType?:string;
/** Filename fallback for icon detection. */
name?:string;
/** Presence makes this a group/folder row. */
children?:readonly LyraSourceEntry[];}export interface LyraSourcePickerEventMap{'lr-sources-change':CustomEvent<LyraEventDetailSnapshot<{selectedSourceIds:string[];}>>;}
/**
* `<lr-source-picker>` — a checkbox tree/list scoping which sources ground the next answer:
* tri-state folders, select-all, type icons, search. **Not `FormAssociated`, deliberately**: this
* is a scoping panel, not a form control — the selection is immediate app state consumed by the
* next retrieval call, exactly the stance `lr-tool-select-dialog` already takes.
*
* Public collection properties take bounded, clone-owned readonly snapshots. Create a new
* collection and reassign it after changes; mutating the assigned array does not update the view.
*
* @customElement lr-source-picker
* @event lr-sources-change - `detail: { selectedSourceIds }` — the complete updated leaf-id array,
* fired after every toggle including select-all.
* @csspart base - The root wrapper.
* @csspart search - The built-in filter `lr-input`, only rendered when `searchable`.
* @csspart select-all - The header select-all row, only rendered when `showSelectAll`.
* @csspart select-all-control - The shared `lr-checkbox` that owns select-all semantics.
* @csspart summary - The "{selected} of {total} selected" text.
* @csspart tree - The `role="tree"` container.
* @csspart item - One `role="treeitem"` row. Its selection state is exposed only through
*   tri-state `aria-checked`; `aria-selected` is intentionally absent because it would duplicate
*   that same state.
* @csspart disclosure - A folder row's pointer-only expand/collapse indicator. Keyboard
* expansion remains owned by the surrounding treeitem.
* @csspart checkbox - The tri-state checkbox glyph.
* @csspart icon - The `lr-file-icon` type badge.
* @csspart label - The entry's label text.
* @csspart empty - The empty state (`noData` when `sources` is empty, `noMatches` when a filter
* empties the tree).
* @csspart error - A localized error shown when a nonempty source payload contains no valid rows.
* @csspart limit - Localized fail-closed status when a cyclic, duplicate, over-depth or
* over-budget input was truncated by the bounded source-tree normalizer.
* @cssprop [--lr-source-picker-checked-bg] - Background of a fully-checked selection control:
*   the `select-all` pill (defaults to `var(--lr-color-brand-quiet)`) and a fully-selected entry's
*   `[part="checkbox"]` (defaults to `var(--lr-color-brand)`). The two keep their distinct resting
*   defaults; setting this prop unifies both.
* @cssprop [--lr-source-picker-checked-border=var(--lr-color-brand)] - Border color of every
*   checked or mixed selection control.
* @cssprop [--lr-source-picker-mixed-bg=color-mix(in srgb, var(--lr-color-brand) 50%, var(--lr-color-surface))] -
*   Background of a partially-selected entry's `[part="checkbox"]`.
* @cssprop [--lr-source-picker-indent-size=var(--lr-size-1-25rem)] - Indent step added to
*   `[part="item"]`'s `padding-inline-start` per nesting level. The total indent is capped at
*   `--lr-size-8rem` so a deeply nested tree cannot push its labels out of view.
* @cssprop [--lr-source-picker-depth=0] - Internal indent plumbing, not a retheming knob: the row's
*   own nesting depth, written inline onto `[part="item"]` as a plain number and multiplied by
*   `--lr-source-picker-indent-size` to produce the indent.
* @status stable
* @since 4.0.0
*/
export declare class LyraSourcePicker extends LyraElement<LyraSourcePickerEventMap>{protected static readonly ownedCollectionProperties:readonly string[];static styles:import("lit").CSSResultGroup[];protected static readonly immutableEventDetails:readonly string[];
/** Flat (no `children`) or a tree. */
sources:readonly LyraSourceEntry[];
/** Leaf ids only. Duplicates and ids absent from `sources` are discarded. The picker updates
* its own copy on toggle *then* emits; reassign to control. */
selectedSourceIds:readonly string[];
/** Whether the header exposes one control for selecting or clearing every visible leaf source. */
showSelectAll:boolean;
/** Whether the built-in source filter is rendered. Toggling retains the query and selection,
*  while keeping a visible tree entry available whenever rows remain. */
searchable:boolean;private _size?;
/** Density tier for the built-in filter field, on the library's one size ladder, in either
*  spelling -- `2xs`/`xs`/`s`/`m`/`l`/`xl`, or Web Awesome's and Shoelace's
*  `small`/`medium`/`large`. Forwarded to the composed `<lr-input>`, which is the only way to
*  reach it: that control resolves its tier inside its own shadow root, so no custom property
*  this component could publish would get there. Forwarded as a property rather than an
*  attribute, because removing an already-written `size` attribute again would leave the child's
*  own `size` at `null` instead of back at its own default. Opt-in: with no size the field keeps
*  its own `m` default, exactly what it rendered before. Unsupported values normalize to the
*  omitted state and remove the attribute. */
get size():LyraSize|undefined;set size(next:LyraSize|undefined);
/** Visible/fallback accessible label for the source tree. Omitting it falls back to a
*  localized default; an explicit empty string clears it. */
label?:string;
/** JS-only accessible-name override for the tree. A markup `aria-label` names the component
*  as a whole, so it is not cloned onto the inner tree. */
accessibleLabel:string|null;private expandedIds;private query;private activeId;private pendingFocusIndex;private keyboardFocusGeneration;private normalizedInput?;private normalizedModel?;private announcementSink?;private isMounting;private lastFilterAnnouncement;private get sourceEntries();private get selectedIds();connectedCallback():void;disconnectedCallback():void;
/** Builds a bounded, acyclic, nonblank first-id-wins tree once per `sources` identity. */
private get sourceModel();private allLeafIds;private descendantLeafIds;private normalizedSelectedSourceIds;private checkedState;private matchesQuery;private isFiltering;private visibleRows;protected willUpdate(changed:PropertyValues):void;protected updated(changed:PropertyValues):void;private commitSelection;private toggleEntry;private toggleSelectAll;private focusRowByIndex;private onTreeKeyDown;private renderRow;render():TemplateResult;}declare global{interface HTMLElementTagNameMap{'lr-source-picker':LyraSourcePicker;}}