import type{LyraEventDetailSnapshot}from'../../../internal/lyra-element.js';import{type TemplateResult}from'lit';import{LyraElement}from'../../../internal/lyra-element.js';import type{LyraNodeTypeStyle}from'../../../internal/node-type-style.js';export type{LyraNodeTypeStyle}from'../../../internal/node-type-style.js';export interface LyraGraphLegendVisibilityDetail{hiddenTypes:string[];}export interface LyraGraphLegendEventMap{'lr-before-visibility-change':CustomEvent<LyraEventDetailSnapshot<LyraGraphLegendVisibilityDetail>>;'lr-visibility-change':CustomEvent<LyraEventDetailSnapshot<LyraGraphLegendVisibilityDetail>>;}
/**
* `<lr-graph-legend>` — a node-type legend for a paired `lr-graph`: one swatch + label + count
* row per `lr-graph` node type, doubling as visibility filters. Never reads or writes a graph directly —
* the host forwards `types` in from `graph.nodeTypes` and `hiddenTypes` back out to
* `graph.hiddenTypes` on `lr-visibility-change`, the same event-decoupled contract every sibling
* in this family follows.
*
* 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.
* Rows without a nonblank string `id` and `label`, plus later duplicate ids, are omitted so an
* untyped payload cannot create an unnamed interactive filter.
*
* @customElement lr-graph-legend
* @event lr-before-visibility-change - Cancelable proposed visibility change. `detail: { hiddenTypes }`
*   is a frozen complete next array; canceling leaves state, announcements, and the post event unchanged.
* @event lr-visibility-change - `detail: { hiddenTypes }` — the complete updated array, fired
*   after an accepted toggle has assigned and announced it.
* @csspart base - The legend wrapper. It owns `role="group"` and the fallback name unless a
*   non-empty host `aria-label` makes the host the sole overall owner.
* @csspart item - One row per type — a `<button>` when `interactive`, a plain `<div>` otherwise.
* @csspart swatch - The type's shape glyph.
* @csspart label - The type's label text.
* @csspart count - The optional per-type count.
* @csspart live-region - The visually hidden filter-toggle announcement.
* @cssprop [--lr-graph-legend-hidden-color=var(--lr-color-text-quiet)] - Text color for a
* filtered-out (hidden) legend row's label/count, independent of the shared quiet-text token.
* @cssprop [--lr-graph-legend-hidden-swatch-opacity=0.5] - Opacity of a filtered-out row's
* decorative swatch.
* @status stable
* @since 4.0.0
*/
export declare class LyraGraphLegend extends LyraElement<LyraGraphLegendEventMap>{protected static readonly ownedCollectionProperties:readonly string[];static styles:import("lit").CSSResultGroup[];protected static readonly immutableEventDetails:readonly string[];
/** The `lr-graph.nodeTypes` array, passed through verbatim. */
types:readonly LyraNodeTypeStyle[];
/** Optional per-type node counts keyed by type id; a type with no entry renders no count. */
counts?:Readonly<Record<string,number>>;
/** Currently-hidden type ids. The legend toggles its own copy on activation *then* emits; a host
*  may also treat this as controlled by reassigning it after each event. */
hiddenTypes:readonly string[];
/** `false` renders a read-only legend (no buttons, no toggling). */
interactive:boolean;
/** Fallback name for the group; defaults to localized `graphLegendLabel`. A non-empty host
*  `aria-label` makes the host the sole overall owner; an explicitly empty host label stays
*  empty on the group. */
label:string;private liveText;
/** The documented part remains a shadow-DOM text mirror only; announcements use this shared
* light-DOM sink because shadow live regions are not reliable across AT/browser pairs. */
private announcementSink?;connectedCallback():void;disconnectedCallback():void;private paletteColor;private swatchColor;private isVisible;private toggle;private renderSwatchShape;render():TemplateResult;}declare global{interface HTMLElementTagNameMap{'lr-graph-legend':LyraGraphLegend;}}