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background color change

Rajanit Navapara answered on April 5, 2022 Popularity 10/10 Helpfulness 2/10

answer background color change

background color change

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<!-- Code that change background colour with mouse movement -->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Changing Color with Mouse Motion</title>
    <style>
        body{
            background-color: blueviolet;
        }
    </style>
</head>
<body onload="">
    <h1>Changing colors</h1>
    <script>
        (function() {
            var mousePos;
            
            document.onmousemove = handleMouseMove;
            setInterval(getMousePosition, 1); // setInterval repeats every X ms
        
            function handleMouseMove(event) {
                var dot, eventDoc, doc, body, pageX, pageY;
        
                event = event || window.event; // IE-ism
        
                // If pageX/Y aren't available and clientX/Y are,
                // calculate pageX/Y - logic taken from jQuery.
                // (This is to support old IE)
                if (event.pageX == null && event.clientX != null) {
                    eventDoc = (event.target && event.target.ownerDocument) || document;
                    doc = eventDoc.documentElement;
                    body = eventDoc.body;
        
                    event.pageX = event.clientX +
                      (doc && doc.scrollLeft || body && body.scrollLeft || 0) -
                      (doc && doc.clientLeft || body && body.clientLeft || 0);
                    event.pageY = event.clientY +
                      (doc && doc.scrollTop  || body && body.scrollTop  || 0) -
                      (doc && doc.clientTop  || body && body.clientTop  || 0 );
                }
        
                mousePos = {
                    x: event.pageX,
                    y: event.pageY
                };
            }
            function getMousePosition() {
                var pos = mousePos;
                if (!pos) {
                    // We haven't seen any movement yet
                }
                else {
                    // 0,0 -> 1040,840
                    // Use pos.x and pos.y
                    let bg = document.getElementsByTagName("body")[0];
                    percen_x = (pos.x*255)/1040
                    percen_y = (pos.y*255)/840
                    //console.log(pos.x,percen_x,pos.y,percen_y)
                    r = percen_x
                    g = percen_y
                    b = 255
                    bg.style.backgroundColor = 'rgb(' + r + ',' + g + ',' + b + ')';
                }
            }
        })();
    </script>
</body>
</html>
<!-- Credits : Rajanit Navapara, 
			   https://stackoverflow.com/users/157247/t-j-crowder,
               https://stackoverflow.com/users/2519416/martijn,
-->

Popularity 10/10 Helpfulness 2/10 Language html

Source: Grepper

Tags: background-color html

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Contributed on Apr 05 2022

Rajanit Navapara

0 Answers Avg Quality 2/10

background color change

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