xterm.js/src/common/services/CharsetService.ts

/**
 * Copyright (c) 2019 The xterm.js authors. All rights reserved.
 * @license MIT
 */

import { ICharsetService } from './Services';
import { ICharset } from '../Types';

export class CharsetService implements ICharsetService {
  public serviceBrand: any;

  public charset: ICharset | undefined;
  public glevel: number = 0;

  private _charsets: (ICharset | undefined)[] = [];

  public get charsets(): (ICharset | undefined)[] {
    return this._charsets;
  }

  public reset(): void {
    this.charset = undefined;
    this._charsets = [];
    this.glevel = 0;
  }

  public setgLevel(g: number): void {
    this.glevel = g;
    this.charset = this._charsets[g];
  }

  public setgCharset(g: number, charset: ICharset | undefined): void {
    this._charsets[g] = charset;
    if (this.glevel === g) {
      this.charset = charset;
    }
  }
}