| 1 | /* |
| 2 | * noVNC: HTML5 VNC client |
| 3 | * Copyright (C) 2019 The noVNC Authors |
| 4 | * Licensed under MPL 2.0 (see LICENSE.txt) |
| 5 | * |
| 6 | * See README.md for usage and integration instructions. |
| 7 | * |
| 8 | */ |
| 9 | |
| 10 | export default class CopyRectDecoder { |
| 11 | decodeRect(x, y, width, height, sock, display, depth) { |
| 12 | if (sock.rQwait("COPYRECT", 4)) { |
| 13 | return false; |
| 14 | } |
| 15 | |
| 16 | let deltaX = sock.rQshift16(); |
| 17 | let deltaY = sock.rQshift16(); |
| 18 | |
| 19 | if ((width === 0) || (height === 0)) { |
| 20 | return true; |
| 21 | } |
| 22 | |
| 23 | display.copyImage(deltaX, deltaY, x, y, width, height); |
| 24 | |
| 25 | return true; |
| 26 | } |
| 27 | } |