@ordojs/accessibility/dist/screen-reader/index.mjs

Comprehensive accessibility system for OrdoJS with ARIA generation, automated testing, and screen reader support

import { EventEmitter } from 'events';

// src/screen-reader/index.ts
var ScreenReaderManager = class extends EventEmitter {
  config;
  announcements;
  liveRegions;
  isInitialized;
  /**
   * Create a new ScreenReaderManager instance
   *
   * @param config - Screen reader configuration
   */
  constructor(config) {
    super();
    this.config = config;
    this.announcements = /* @__PURE__ */ new Map();
    this.liveRegions = /* @__PURE__ */ new Map();
    this.isInitialized = false;
  }
  /**
   * Initialize the screen reader manager
   */
  async initialize() {
    if (this.isInitialized) {
      console.warn("Screen reader manager is already initialized");
      return;
    }
    try {
      await this.initializeScreenReader();
      this.isInitialized = true;
      console.log("Screen reader manager initialized successfully");
      this.emit("initialized");
    } catch (error) {
      console.error("Failed to initialize screen reader manager:", error);
      this.emit("error", error);
      throw error;
    }
  }
  /**
   * Announce message to screen readers
   *
   * @param message - Message to announce
   * @param options - Announcement options
   * @returns Announcement ID
   */
  announce(message, options = {}) {
    const announcementId = `announcement_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
    const announcement = {
      id: announcementId,
      message,
      priority: options.priority || "polite",
      type: options.type || "status",
      timestamp: /* @__PURE__ */ new Date()
    };
    if (options.duration !== void 0) {
      announcement.duration = options.duration;
    }
    if (options.element) {
      announcement.element = options.element;
    }
    if (options.context) {
      announcement.context = options.context;
    }
    this.announcements.set(announcementId, announcement);
    this.emit("announcementCreated", announcement);
    return announcementId;
  }
  /**
   * Create live region
   *
   * @param regionId - Region ID
   * @param element - Element selector
   * @param options - Region options
   * @returns Live region
   */
  createLiveRegion(regionId, element, options = {}) {
    const region = {
      id: regionId,
      type: options.type || "status",
      priority: options.priority || "polite",
      element,
      content: "",
      atomic: options.atomic || false,
      relevant: options.relevant || "additions",
      busy: options.busy || false
    };
    if (options.expanded !== void 0) {
      region.expanded = options.expanded;
    }
    if (options.controls) {
      region.controls = options.controls;
    }
    if (options.describedBy) {
      region.describedBy = options.describedBy;
    }
    if (options.label) {
      region.label = options.label;
    }
    this.liveRegions.set(regionId, region);
    this.emit("liveRegionCreated", region);
    return region;
  }
  /**
   * Update live region content
   *
   * @param regionId - Region ID
   * @param content - New content
   * @param options - Update options
   */
  updateLiveRegion(regionId, content, options = {}) {
    const region = this.liveRegions.get(regionId);
    if (region) {
      region.content = content;
      if (options.busy !== void 0) {
        region.busy = options.busy;
      }
      if (options.expanded !== void 0) {
        region.expanded = options.expanded;
      }
      this.liveRegions.set(regionId, region);
      this.emit("liveRegionUpdated", region);
    }
  }
  /**
   * Remove live region
   *
   * @param regionId - Region ID
   */
  removeLiveRegion(regionId) {
    const region = this.liveRegions.get(regionId);
    if (region) {
      this.liveRegions.delete(regionId);
      this.emit("liveRegionRemoved", region);
    }
  }
  /**
   * Get live region by ID
   *
   * @param regionId - Region ID
   * @returns Live region or undefined
   */
  getLiveRegion(regionId) {
    return this.liveRegions.get(regionId);
  }
  /**
   * Get all live regions
   *
   * @returns Array of live regions
   */
  getAllLiveRegions() {
    return Array.from(this.liveRegions.values());
  }
  /**
   * Get announcement by ID
   *
   * @param announcementId - Announcement ID
   * @returns Announcement or undefined
   */
  getAnnouncement(announcementId) {
    return this.announcements.get(announcementId);
  }
  /**
   * Get all announcements
   *
   * @returns Array of announcements
   */
  getAllAnnouncements() {
    return Array.from(this.announcements.values());
  }
  /**
   * Clear announcements
   */
  clearAnnouncements() {
    this.announcements.clear();
    this.emit("announcementsCleared");
  }
  /**
   * Get screen reader manager statistics
   *
   * @returns Statistics
   */
  getStats() {
    const announcementsByType = {};
    const liveRegionsByType = {};
    for (const announcement of this.announcements.values()) {
      announcementsByType[announcement.type] = (announcementsByType[announcement.type] || 0) + 1;
    }
    for (const region of this.liveRegions.values()) {
      liveRegionsByType[region.type] = (liveRegionsByType[region.type] || 0) + 1;
    }
    return {
      totalAnnouncements: this.announcements.size,
      totalLiveRegions: this.liveRegions.size,
      announcementsByType,
      liveRegionsByType
    };
  }
  /**
   * Initialize screen reader support
   */
  async initializeScreenReader() {
    console.log("Initializing screen reader support...");
    if (this.config.announcements) {
      this.setupAnnouncements();
    }
    if (this.config.liveRegions) {
      this.setupLiveRegions();
    }
    if (this.config.ariaLabels || this.config.ariaDescriptions || this.config.ariaLandmarks) {
      this.setupARIASupport();
    }
  }
  /**
   * Setup announcements
   */
  setupAnnouncements() {
    console.log("Setting up announcements...");
  }
  /**
   * Setup live regions
   */
  setupLiveRegions() {
    console.log("Setting up live regions...");
  }
  /**
   * Setup ARIA support
   */
  setupARIASupport() {
    console.log("Setting up ARIA support...");
  }
};

export { ScreenReaderManager };
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