49 lines
1.2 KiB
JavaScript
49 lines
1.2 KiB
JavaScript
/*
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* noVNC: HTML5 VNC client
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* Copyright (C) 2020 The noVNC Authors
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* Licensed under MPL 2.0 (see LICENSE.txt)
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*
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* See README.md for usage and integration instructions.
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*/
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/*
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* HTML element utility functions
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*/
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export function clientToElement(x, y, elem) {
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const bounds = elem.getBoundingClientRect();
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let pos = { x: 0, y: 0 };
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// Clip to target bounds
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if (x < bounds.left) {
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pos.x = 0;
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} else if (x >= bounds.right) {
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pos.x = bounds.width - 1;
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} else {
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pos.x = x - bounds.left;
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}
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if (y < bounds.top) {
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pos.y = 0;
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} else if (y >= bounds.bottom) {
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pos.y = bounds.height - 1;
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} else {
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pos.y = y - bounds.top;
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}
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//multiple KasmVNC screens, Window can still receive mouse events when cursor goes
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//outside of the window if the mouse is down while the moving occurs
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if (x > window.innerWidth) {
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pos.x += (x - window.innerWidth);
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}
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else if (x < 0) {
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pos.x = x + bounds.left;
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}
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if (y > window.innerHeight) {
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pos.y += (y - window.innerHeight);
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}
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else if (y < 0) {
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pos.y = y + bounds.top;
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}
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return pos;
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}
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