| /* |
| * noVNC: HTML5 VNC client |
| * Copyright (C) 2020 The noVNC Authors |
| * Licensed under MPL 2.0 (see LICENSE.txt) |
| * |
| * See README.md for usage and integration instructions. |
| */ |
| |
| /* |
| * HTML element utility functions |
| */ |
| |
| export function clientToElement(x, y, elem) { |
| const bounds = elem.getBoundingClientRect(); |
| let pos = { x: 0, y: 0 }; |
| // Clip to target bounds |
| if (x < bounds.left) { |
| pos.x = 0; |
| } else if (x >= bounds.right) { |
| pos.x = bounds.width - 1; |
| } else { |
| pos.x = x - bounds.left; |
| } |
| if (y < bounds.top) { |
| pos.y = 0; |
| } else if (y >= bounds.bottom) { |
| pos.y = bounds.height - 1; |
| } else { |
| pos.y = y - bounds.top; |
| } |
| return pos; |
| } |