import { HoverRegion, SpeechRegion, LiveRegion } from './Region.js';
import type { ExplorerMathItem, ExplorerMathDocument } from '../explorer.js';
import { Explorer, AbstractExplorer } from './Explorer.js';
import { ExplorerPool } from './ExplorerPool.js';
import { MmlNode } from '../../core/MmlTree/MmlNode.js';
import { SemAttr } from '../speech/SpeechUtil.js';
export interface KeyExplorer extends Explorer {
    KeyDown(event: KeyboardEvent): void;
    FocusIn(event: FocusEvent): void;
    FocusOut(event: FocusEvent): void;
    NoMove(): void;
}
export type keyMapping = (explorer: SpeechExplorer, event: KeyboardEvent) => boolean | void;
export declare function isContainer(el: HTMLElement): boolean;
export declare function hasModifiers(event: MouseEvent | KeyboardEvent, shift?: boolean): boolean;
export declare class SpeechExplorer extends AbstractExplorer<string> implements KeyExplorer {
    document: ExplorerMathDocument;
    pool: ExplorerPool;
    region: SpeechRegion;
    protected node: HTMLElement;
    brailleRegion: LiveRegion;
    magnifyRegion: HoverRegion;
    item: ExplorerMathItem;
    protected static helpMessage(title: string, select: string, braille: string): string;
    protected static helpData: Map<string, [string, string, string]>;
    protected static keyMap: Map<string, [keyMapping, boolean?]>;
    sound: boolean;
    private get generators();
    protected get role(): string;
    protected get description(): string;
    protected get none(): string;
    protected get brailleNone(): string;
    protected current: HTMLElement;
    protected clicked: HTMLElement;
    refocus: HTMLElement;
    protected focusSpeech: boolean;
    restarted: string;
    protected speech: HTMLElement;
    protected speechType: string;
    protected img: HTMLElement;
    attached: boolean;
    private eventsAttached;
    protected marks: HTMLElement[];
    protected currentMark: number;
    protected lastMark: HTMLElement;
    protected pendingIndex: number[];
    protected cellTypes: string[];
    protected anchors: HTMLElement[];
    protected tabs: HTMLElement[];
    protected backTab: boolean;
    protected events: [string, (x: Event) => void][];
    private subtrees;
    FocusIn(event: FocusEvent): void;
    FocusOut(_event: FocusEvent): void;
    KeyDown(event: KeyboardEvent): void;
    private MouseDown;
    Click(event: MouseEvent): void;
    DblClick(event: MouseEvent): void;
    protected spaceKey(): boolean;
    protected hKey(): boolean | void;
    protected escapeKey(event: KeyboardEvent): void | boolean;
    protected tabKey(event: KeyboardEvent): void | boolean;
    protected tabTo(node: HTMLElement): void;
    protected tabOut(): void;
    protected enterKey(event: KeyboardEvent): void | boolean;
    protected homeKey(): void;
    protected moveDown(shift: boolean): boolean | void;
    protected moveUp(shift: boolean): boolean | void;
    protected moveRight(shift: boolean): boolean | void;
    protected moveLeft(shift: boolean): boolean | void;
    protected moveTo(node: HTMLElement): void | boolean;
    protected moveToNeighborCell(di: number, dj: number): boolean | void;
    protected undefinedKey(event: KeyboardEvent): boolean;
    protected addMark(): void;
    protected prevMark(): void;
    protected clearMarks(): void;
    protected autoVoice(): void;
    protected toggleBraille(): void;
    protected numberKey(n: number): boolean | void;
    depth(): void;
    summary(): void;
    nextRules(): void;
    nextStyle(): void;
    details(): void;
    protected help(): void;
    protected setCurrent(node: HTMLElement, addDescription?: boolean): void;
    private cacheParts;
    protected getSplitNodes(node: HTMLElement): HTMLElement[];
    private subtree;
    protected addSpeech(node: HTMLElement, describe: boolean): void;
    protected addComma(words: string[]): string[];
    protected removeSpeech(): void;
    speak(speech: string, braille?: string, ssml?: string[], description?: string): void;
    unspeak(node: HTMLElement): void;
    attachSpeech(): void;
    detachSpeech(): void;
    protected adjustAnchors(): void;
    protected restoreAnchors(): void;
    protected getTabs(): void;
    protected getInternalTabs(node: HTMLElement): HTMLElement[];
    focus(): void;
    protected nodeId(node: HTMLElement): string;
    protected parentId(node: HTMLElement): string;
    protected getNode(id: string): HTMLElement;
    protected getParent(node: HTMLElement): HTMLElement;
    protected childArray(node: HTMLElement): string[];
    protected isCell(node: HTMLElement): boolean;
    protected isRow(node: HTMLElement): boolean;
    protected tableCell(node: HTMLElement): HTMLElement;
    protected cellTable(cell: HTMLElement): HTMLElement;
    protected cellPosition(cell: HTMLElement): [number, number];
    protected cellAt(table: HTMLElement, i: number, j: number): HTMLElement;
    protected firstNode(node: HTMLElement): HTMLElement;
    protected rootNode(): HTMLElement;
    protected nextSibling(node: HTMLElement): HTMLElement;
    protected prevSibling(node: HTMLElement): HTMLElement;
    protected findClicked(node: HTMLElement, x: number, y: number): HTMLElement;
    protected isLink(node?: HTMLElement): boolean;
    protected getAnchor(node?: HTMLElement): HTMLElement;
    protected linkFor(anchor: HTMLElement): HTMLElement;
    protected parentLink(node: HTMLElement): HTMLElement;
    protected focusTop(): void;
    protected SsmlAttributes(node: HTMLElement, center: SemAttr): string[];
    protected restartAfter(promise: Promise<void>): Promise<void>;
    constructor(document: ExplorerMathDocument, pool: ExplorerPool, region: SpeechRegion, node: HTMLElement, brailleRegion: LiveRegion, magnifyRegion: HoverRegion, _mml: MmlNode, item: ExplorerMathItem);
    protected findStartNode(): HTMLElement;
    Start(): Promise<void>;
    Stop(): void;
    Update(): void;
    protected get tabIndex(): string;
    Attach(): void;
    Detach(): void;
    NoMove(): void;
    AddEvents(): void;
    protected addHtmlEvents(): void;
    private actionable;
    protected triggerLinkKeyboard(event: KeyboardEvent): boolean;
    protected triggerLink(node: HTMLElement): boolean;
    protected triggerLinkMouse(): boolean;
    semanticFocus(): string;
    private getSubtrees;
}