/usr/share/doc/libjs-jquery-ui-docs/examples/slider/colorpicker.html is in libjs-jquery-ui-docs 1.12.1+dfsg-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>jQuery UI Slider - Colorpicker</title>
<link rel="stylesheet" href="/usr/share/javascript/jquery-ui/themes/base/jquery-ui.css">
<link rel="stylesheet" href="../demos.css">
<style>
#red, #green, #blue {
float: left;
clear: left;
width: 300px;
margin: 15px;
}
#swatch {
width: 120px;
height: 100px;
margin-top: 18px;
margin-left: 350px;
background-image: none;
}
#red .ui-slider-range { background: #ef2929; }
#red .ui-slider-handle { border-color: #ef2929; }
#green .ui-slider-range { background: #8ae234; }
#green .ui-slider-handle { border-color: #8ae234; }
#blue .ui-slider-range { background: #729fcf; }
#blue .ui-slider-handle { border-color: #729fcf; }
</style>
<script src="/usr/lib/nodejs/require.js"></script>
<script src="../bootstrap.js">
function hexFromRGB(r, g, b) {
var hex = [
r.toString( 16 ),
g.toString( 16 ),
b.toString( 16 )
];
$.each( hex, function( nr, val ) {
if ( val.length === 1 ) {
hex[ nr ] = "0" + val;
}
});
return hex.join( "" ).toUpperCase();
}
function refreshSwatch() {
var red = $( "#red" ).slider( "value" ),
green = $( "#green" ).slider( "value" ),
blue = $( "#blue" ).slider( "value" ),
hex = hexFromRGB( red, green, blue );
$( "#swatch" ).css( "background-color", "#" + hex );
}
$( "#red, #green, #blue" ).slider({
orientation: "horizontal",
range: "min",
max: 255,
value: 127,
slide: refreshSwatch,
change: refreshSwatch
});
$( "#red" ).slider( "value", 255 );
$( "#green" ).slider( "value", 140 );
$( "#blue" ).slider( "value", 60 );
</script>
</head>
<body class="ui-widget-content" style="border:0;">
<p class="ui-state-default ui-corner-all ui-helper-clearfix" style="padding:4px;">
<span class="ui-icon ui-icon-pencil" style="float:left; margin:-2px 5px 0 0;"></span>
Simple Colorpicker
</p>
<div id="red"></div>
<div id="green"></div>
<div id="blue"></div>
<div id="swatch" class="ui-widget-content ui-corner-all"></div>
<div class="demo-description">
<p>Combine three sliders to create a simple RGB colorpicker.</p>
</div>
</body>
</html>
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