@yallaling/web-ai-core
Version:
Framework-agnostic Web AI integration core with secure practices
99 lines • 3.7 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.WebAILanguageDetector = void 0;
class WebAILanguageDetector extends EventTarget {
constructor() {
super();
this.session = null;
this.capabilities = null;
}
async initialize() {
try {
// Use the same API detection as the working React components
if (!('LanguageDetector' in self)) {
throw new Error('Chrome AI Language Detector API not available');
}
// Use availability() method like in working React components
const availabilityResult = await self.LanguageDetector.availability();
this.capabilities = { available: availabilityResult };
if (availabilityResult === 'no') {
throw new Error('Chrome AI Language Detection not available on this device');
}
this.dispatchEvent(new CustomEvent('initialized', {
detail: { capabilities: this.capabilities }
}));
}
catch (error) {
this.dispatchEvent(new CustomEvent('error', {
detail: { error: error instanceof Error ? error.message : 'Unknown error' }
}));
throw error;
}
}
async createSession(options = {}) {
try {
if (!this.capabilities) {
await this.initialize();
}
this.session = await self.LanguageDetector.create(options);
this.dispatchEvent(new CustomEvent('sessionCreated', {
detail: { options }
}));
}
catch (error) {
this.dispatchEvent(new CustomEvent('error', {
detail: { error: error instanceof Error ? error.message : 'Failed to create session' }
}));
throw error;
}
}
async detect(text) {
try {
if (!this.session) {
await this.createSession();
}
if (!this.session) {
throw new Error('Failed to create language detection session');
}
this.dispatchEvent(new CustomEvent('detectionStarted', {
detail: { text }
}));
const detections = await this.session.detect(text);
this.dispatchEvent(new CustomEvent('detectionCompleted', {
detail: { detections }
}));
return detections;
}
catch (error) {
this.dispatchEvent(new CustomEvent('error', {
detail: { error: error instanceof Error ? error.message : 'Language detection failed' }
}));
throw error;
}
}
async destroy() {
if (this.session) {
await this.session.destroy();
this.session = null;
this.dispatchEvent(new CustomEvent('sessionDestroyed'));
}
}
// Utility methods
isAvailable() {
var _a, _b;
return ((_a = this.capabilities) === null || _a === void 0 ? void 0 : _a.available) === 'readily' || ((_b = this.capabilities) === null || _b === void 0 ? void 0 : _b.available) === 'after-download';
}
needsDownload() {
var _a;
return ((_a = this.capabilities) === null || _a === void 0 ? void 0 : _a.available) === 'after-download';
}
getCapabilities() {
return this.capabilities;
}
getSupportedLanguages() {
var _a;
return ((_a = this.capabilities) === null || _a === void 0 ? void 0 : _a.languages) || [];
}
}
exports.WebAILanguageDetector = WebAILanguageDetector;
//# sourceMappingURL=language-detector.js.map