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test_css_filter.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Test CSS Filter</title>
<style>
fieldset {
display: inline-block;
border: 1px solid #ccc;
padding: 10px 20px;
}
fieldset.unthemed input, fieldset.unthemed select, fieldset.unthemed textarea {
background-color: white;
}
fieldset.styled {
background-color: black;
}
fieldset.styled legend {
color: #bbb;
}
fieldset.styled input, fieldset.styled select, fieldset.styled textarea {
background-color: black;
color: white;
}
.result {
margin: 1em 0 2em 0;
}
.controls label, .controls input {
vertical-align: middle;
}
label > span {
display: inline-block;
width: 5em;
}
input[type=range] {
width: 300px;
}
</style>
<script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>
<script>
$(function() {
let filters = {};
function changeFilter() {
let order = [];
$('.controls input[type=range]').each(function() {
order.push($(this).prop('name'));
});
let filter = order.map(key => key + '(' + filters[key] + ')').join(' ');
$('.samples').find('input, textarea, select').css('filter', filter);
$('.result').text('filter: '+ filter);
}
$('.controls input[type=range]').on('input', function() {
let name = $(this).prop('name');
let value = $(this).val();
switch(name) {
case 'hue-rotate':
value +='deg';
break;
default:
value += '%';
}
filters[name] = value;
$(this).parents('p').children('span').text(value);
changeFilter();
}).trigger('input');
$('input[type=reset]').click(function() {
setTimeout(function() {
$('.controls p input').trigger('input');
});
});
$('.controls div').sortable({
stop: changeFilter
});
});
</script>
</head>
<body>
<div class="samples">
<fieldset>
<legend>Themed</legend>
<p><input value="Sample Text"></p>
<p><textarea>Sample Text</textarea></p>
<p>
<select>
<option>Sample Text</option>
</select>
</p>
</fieldset>
<fieldset class="unthemed">
<legend>Unthemed</legend>
<p><input value="Sample Text"></p>
<p><textarea>Sample Text</textarea></p>
<p>
<select>
<option>Sample Text</option>
</select>
</p>
</fieldset>
<fieldset class="styled">
<legend>Styled</legend>
<p><input value="Sample Text"></p>
<p><textarea>Sample Text</textarea></p>
<p>
<select>
<option>Sample Text</option>
</select>
</p>
</fieldset>
</div>
<div class="result"></div>
<form class="controls">
<div>
<p>
<label>
<span>sepia:</span>
<input type="range" name="sepia" min="0" max="100" value="0">
</label>
<span></span>
</p>
<p>
<label>
<span>brightness:</span>
<input type="range" name="brightness" min="0" max="100" value="100">
</label>
<span></span>
</p>
<p>
<label>
<span>contrast:</span>
<input type="range" name="contrast" min="0" max="500" value="100">
</label>
<span></span>
</p>
<p>
<label>
<span>grayscale:</span>
<input type="range" name="grayscale" min="0" max="100" value="0">
</label>
<span></span>
</p>
<p>
<label>
<span>hue-rotate:</span>
<input type="range" name="hue-rotate" min="0" max="359" value="0">
</label>
<span></span>
</p>
<p>
<label>
<span>invert:</span>
<input type="range" name="invert" min="0" max="100" value="0">
</label>
<span></span>
</p>
<p>
<label>
<span>opacity:</span>
<input type="range" name="opacity" min="0" max="100" value="100">
</label>
<span></span>
</p>
<p>
<label>
<span>saturate:</span>
<input type="range" name="saturate" min="0" max="500" value="100">
</label>
<span></span>
</p>
</div>
<input type="reset">
</form>
</body>
</html>