Class ImageAddon

addons/addon-image/src/ImageAddon.ts:51–317

export class ImageAddon implements ITerminalAddon , IImageApi {
  private _opts: IImageAddonOptions;
  private _defaultOpts: IImageAddonOptions;
  private _storage: ImageStorage | undefined;
  private _renderer: ImageRenderer | undefined;
  private _disposables: IDisposable[] = [];
  private _terminal: ITerminalExt | undefined;
  private _handlers: Map<String, IResetHandler> = new Map();

  constructor(opts?: Partial<IImageAddonOptions>) {
    this._opts = Object.assign({}, DEFAULT_OPTIONS, opts);
    this._defaultOpts = Object.assign({}, DEFAULT_OPTIONS, opts);
  }

  public dispose(): void {
    for (const obj of this._disposables) {
      obj.dispose();
    }
    this._disposables.length = 0;
    this._handlers.clear();
  }

  private _disposeLater(...args: IDisposable[]): void {
    for (const obj of args) {
      this._disposables.push(obj);
    }
  }

  public activate(terminal: ITerminalExt): void {
    this._terminal = terminal;

    // internal data structures
    this._renderer = new ImageRenderer(terminal);
    this._storage = new ImageStorage(terminal, this._renderer, this._opts);

    // enable size reports
    if (this._opts.enableSizeReports) {
      // const windowOptions = terminal.getOption('windowOptions');
      // windowOptions.getWinSizePixels = true;
      // windowOptions.getCellSizePixels = true;
      // windowOptions.getWinSizeChars = true;
      // terminal.setOption('windowOptions', windowOptions);
      const windowOps = terminal.options.windowOptions || {};
      windowOps.getWinSizePixels = true;
      windowOps.getCellSizePixels = true;
      windowOps.getWinSizeChars = true;
      terminal.options.windowOptions = windowOps;
    }

    this._disposeLater(
      this._renderer,
      this._storage,

      // DECSET/DECRST/DA1/XTSMGRAPHICS handlers
      terminal.parser.registerCsiHandler({ prefix: '?', final: 'h' }, params => this._decset(params)),
      terminal.parser.registerCsiHandler({ prefix: '?', final: 'l' }, params => this._decrst(params)),
      terminal.parser.registerCsiHandler({ final: 'c' }, params => this._da1(params)),
      terminal.parser.registerCsiHandler({ prefix: '?', final: 'S' }, params => this._xtermGraphicsAttributes(params)),