1/*
 2 * noVNC: HTML5 VNC client
 3 * Copyright (C) 2020 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 * HTML element utility functions
11 */
12
13export function clientToElement(x, y, elem) {
14    const bounds = elem.getBoundingClientRect();
15    let pos = { x: 0, y: 0 };
16    // Clip to target bounds
17    if (x < bounds.left) {
18        pos.x = 0;
19    } else if (x >= bounds.right) {
20        pos.x = bounds.width - 1;
21    } else {
22        pos.x = x - bounds.left;
23    }
24    if (y < bounds.top) {
25        pos.y = 0;
26    } else if (y >= bounds.bottom) {
27        pos.y = bounds.height - 1;
28    } else {
29        pos.y = y - bounds.top;
30    }
31    return pos;
32}