import{type PropertyValues,type TemplateResult}from'lit';import{LyraElement}from'../../../internal/lyra-element.js';export interface LyraChatSuggestion{suggestionId:string;
/** Nonblank text used as the chip button's visible and accessible name. */
label:string;
/** Optional literal icon hint (for example, an emoji). Rendered decoratively before the text. */
icon?:string;
/** An optional secondary line (Perplexity-style related questions). */
detail?:string;
/**
* Marks this suggestion non-actionable: its chip renders a genuinely disabled `<button>` (no
* roving tab stop, no hover/press affordance, no `lr-suggestion-select`), and arrow-key/Home/End
* roving navigation steps past it instead of landing on it. Omitted or `false` renders the chip
* exactly as before this field existed.
*/
disabled?:boolean;}export interface LyraSuggestionChipsEventMap{'lr-suggestion-select':CustomEvent<{suggestionId:string;label:string;}>;}
/**
* `<lr-suggestion-chips>` — starter prompts (empty thread) and follow-up suggestions (after a
* response) as a horizontally scrollable chip row; activation hands the prompt to the host, which
* decides whether to compose it into an input or send it directly. Never writes into a composer or
* sends anything itself.
*
* Streaming-friendly: chips render through a keyed `repeat()` on `suggestionId`, so replacing
* follow-ups mid-conversation preserves focus on any chip whose identifier survives. Identifiers
* must be nonempty and unique; invalid and later duplicate entries are omitted deterministically.
* Suggestions are a clone-owned, bounded readonly snapshot; create and reassign a new array after
* changing the sequence or a row.
*
* A suggestion may also set `disabled`, marking it non-actionable: its chip renders a genuinely
* disabled `<button>` (no roving tab stop, no hover/press affordance) and activating it -- by click
* or keyboard -- emits nothing and changes no state. Arrow-key/Home/End roving navigation steps
* past it instead of landing on it. Omitted or `false` renders the chip exactly as before this
* field existed.
*
* @customElement lr-suggestion-chips
* @event lr-suggestion-select - `detail: { suggestionId, label }`.
* @csspart base - The labeled group.
* @csspart row - The flex container holding the chips, in both the wrapping and the scrolling
*   layout. Style this to change how chip lines pack (`justify-content`, `row-gap`).
* @csspart chip - Each suggestion button.
* @csspart chip-icon - Optional decorative literal icon.
* @csspart chip-label - The primary text.
* @csspart chip-detail - The secondary line (only rendered when `detail` is set).
* @cssprop [--lr-suggestion-chips-justify=flex-start] - Main-axis packing of the chip row. `center`
*   centers every line, the wrapped final one included — what `::part(base)` alone cannot do.
* @cssprop [--lr-suggestion-chips-hover-bg=var(--lr-color-brand-quiet)] - Background of a hovered chip.
* @cssprop [--lr-suggestion-chips-hover-border=var(--lr-color-brand)] - Border color of a hovered chip.
* @cssprop [--lr-suggestion-chips-disabled-opacity=0.5] - Opacity of a chip whose suggestion sets `disabled`.
* @status stable
* @since 4.0.0
*/
export declare class LyraSuggestionChips extends LyraElement<LyraSuggestionChipsEventMap>{protected static readonly ownedCollectionProperties:readonly string[];static styles:import("lit").CSSResultGroup[];
/** The clone-owned suggestions to render, in order. `suggestionId` must be unique and nonempty;
*  the first valid occurrence wins. Empty renders nothing at all. Reassign a new array after
*  changes. */
suggestions:readonly LyraChatSuggestion[];
/** Wraps into multiple rows instead of a single horizontally scrollable line. */
wrap:boolean;
/** Accessible name for the group. Optional. Omitting it localizes the default `suggestionsLabel`
*  message; an explicit empty string renders no visible/accessible label. */
label?:string;private activeIndex;private pendingFocus?;private focusRepairGeneration;private normalizeSuggestions;private get effectiveSuggestions();disconnectedCallback():void;adoptedCallback():void;protected willUpdate(changed:PropertyValues):void;protected updated(changed:PropertyValues):void;private restorePendingFocus;
/** A `disabled` suggestion cannot be activated -- by click or keyboard -- and emits nothing and
*  changes no state, matching every other declared-non-actionable entry in this library. */
private select;private chipButtons;private focusChip;private onChipFocus;private isSuggestionDisabled;
/** Degrades `this.activeIndex` off a disabled suggestion to the nearest enabled one (forward
*  first, then backward), so the `tabindex="0"` resting stop this drives is never one a keyboard
*  user cannot reach. Returns `-1` only when every suggestion is disabled. Unset regression: with
*  no disabled suggestion, this is the same `clamp(activeIndex, 0, count - 1)` the tabindex
*  comparison always used. */
private effectiveActiveIndex;
/** Steps `from` by one chip in `direction`, wrapping around while skipping a disabled chip --
*  the wrap-around analogue of `stepEnabledIndex()` in `internal/catalog-picker.ts`. Returns `-1`
*  only when every suggestion is disabled. Unset regression: with no disabled suggestion, this
*  is the same `(from + direction + n) % n` the arrow-key handler always computed. */
private stepEnabledIndex;private firstEnabledIndex;private lastEnabledIndex;private onKeyDown;private renderChip;render():TemplateResult;}declare global{interface HTMLElementTagNameMap{'lr-suggestion-chips':LyraSuggestionChips;}}