src/BufferSet.ts

   1 /**
   2  * @license MIT
   3  */
   4
   5 import { ITerminal } from './Interfaces';
   6 import { Buffer } from './Buffer';
   7 import { EventEmitter } from './EventEmitter';
   8
   9 export class BufferSet extends EventEmitter {
  10   private _normal: Buffer;
  11   private _alt: Buffer;
  12   private _activeBuffer: Buffer;
  13
  14   constructor(private _terminal: ITerminal) {
  15     super();
  16     this._normal = new Buffer(this._terminal);
  17     this._alt = new Buffer(this._terminal);
  18     this._activeBuffer = this._normal;
  19   }
  20
  21   public get alt(): Buffer {
  22     return this._alt;
  23   }
  24
  25   public get active(): Buffer {
  26     return this._activeBuffer;
  27   }
  28
  29   public get normal(): Buffer {
  30     return this._normal;
  31   }
  32
  33   private resetTerminal() {
  34     this._terminal.reset();
  35     this._terminal.viewport.syncScrollArea();
  36     this._terminal.showCursor();
  37   }
  38
  39   public activateNormalBuffer(): void {
  40     this._activeBuffer = this._normal;
  41     this.resetTerminal();
  42     this.emit('activate', this._normal);
  43   }
  44
  45   public activateAltBuffer(): void {
  46     this._activeBuffer = this._alt;
  47     this.resetTerminal();
  48     this.emit('activate', this._alt);
  49   }
  50 }