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    Linear-gradient Generator

    linear-gradient generator

    HTML Content

        <div id="container">
            <div id="gradient-container" data-alpha="true">
            </div>
    
            <div id="controls">
                <div class="section">
                    <div class="title"> Active point </div>
                    <div class="property">
                    <div class="ui-input-slider" data-topic="point-position" data-info="position"
                        data-unit="px" data-min="-1000" data-value="0" data-max="1000" data-sensivity="5"></div>
                        <div id="delete-point" class="button"> delete point </div>
                    </div>
                    <div class="ui-color-picker" data-topic="picker"></div>
                </div>
    
                <div class="section">
                    <div class="title"> Active axis </div>
                    <div class="property">
                        <div class="name"> axis unit </div>
                        <div class="ui-dropdown" data-topic="axis-unit" data-selected="1">
                            <div data-value='px'> pixels (px) </div>
                            <div data-value='%'> percentage (%) </div>
                        </div>
                        <div id="delete-axis" class="button"> delete line </div>
                    </div>
                    <div class="property">
                        <div class="ui-slider" data-topic="axis-rotation" data-info="rotation"
                            data-min="-180" data-value="0" data-max="180"></div>
                    </div>
                </div>
    
                <div id="tool-section" class="section">
                    <div class="title"> Tool settings </div>
                    <div class="property">
                        <div class="name"> alpha background </div>
                        <div id="canvas-bg"></div>
                        <div id="add-axis" class="button"> add line </div>
                    </div>
                    <div id="order">
                        <div id="gradient-axes"></div>
                        <div id="gradient-order"></div>
                    </div>
                </div>
            </div>
    
            <div id="output">
                <div class="css-property">
                    <span class="property">background:</span>
                    <span class="value"></span>
                </div>
            </div>
        </div>

    CSS Content

    /*
     * COLOR PICKER TOOL
     */
    
    .ui-color-picker {
    	width: 420px;
    	margin: 0;
    	border: 1px solid #DDD;
    	background-color: #FFF;
    	display: table;
    
    	-moz-user-select: none;
    	-webkit-user-select: none;
    	-ms-user-select: none;
    	user-select: none;
    }
    
    .ui-color-picker .picking-area {
    	width: 198px;
    	height: 198px;
    	margin: 5px;
    	border: 1px solid #DDD;
    	position: relative;
    	float: left;
    	display: table;
    }
    
    .ui-color-picker .picking-area:hover {
    	cursor: default;
    }
    
    /* HSV format - Hue-Saturation-Value(Brightness) */
    .ui-color-picker .picking-area {
    	background: url("images/picker_mask.png");
    
    	background: -moz-linear-gradient(bottom, #000 0%, rgba(0, 0, 0, 0) 100%),
    				-moz-linear-gradient(left, #FFF 0%, rgba(255, 255, 255, 0) 100%);
    	background: -webkit-linear-gradient(bottom, #000 0%, rgba(0, 0, 0, 0) 100%),
    				-webkit-linear-gradient(left, #FFF 0%, rgba(255, 255, 255, 0) 100%);
    	background: -ms-linear-gradient(bottom, #000 0%, rgba(0, 0, 0, 0) 100%),
    				-ms-linear-gradient(left, #FFF 0%, rgba(255, 255, 255, 0) 100%);
    	background: -o-linear-gradient(bottom, #000 0%, rgba(0, 0, 0, 0) 100%),
    				-o-linear-gradient(left, #FFF 0%, rgba(255, 255, 255, 0) 100%);
    
    	background-color: #F00;
    }
    
    /* HSL format - Hue-Saturation-Lightness */
    .ui-color-picker[data-mode='HSL'] .picking-area {
    	background: -moz-linear-gradient(top, hsl(0, 0%, 100%) 0%, hsla(0, 0%, 100%, 0) 50%,
    									hsla(0, 0%, 0%, 0) 50%, hsl(0, 0%, 0%) 100%),
    				-moz-linear-gradient(left, hsl(0, 0%, 50%) 0%, hsla(0, 0%, 50%, 0) 100%);
    	background: -webkit-linear-gradient(top, hsl(0, 0%, 100%) 0%, hsla(0, 0%, 100%, 0) 50%,
    									hsla(0, 0%, 0%, 0) 50%, hsl(0, 0%, 0%) 100%),
    				-webkit-linear-gradient(left, hsl(0, 0%, 50%) 0%, hsla(0, 0%, 50%, 0) 100%);
    	background: -ms-linear-gradient(top, hsl(0, 0%, 100%) 0%, hsla(0, 0%, 100%, 0) 50%,
    									hsla(0, 0%, 0%, 0) 50%, hsl(0, 0%, 0%) 100%),
    				-ms-linear-gradient(left, hsl(0, 0%, 50%) 0%, hsla(0, 0%, 50%, 0) 100%);
    	background: -o-linear-gradient(top, hsl(0, 0%, 100%) 0%, hsla(0, 0%, 100%, 0) 50%,
    									hsla(0, 0%, 0%, 0) 50%, hsl(0, 0%, 0%) 100%),
    				-o-linear-gradient(left, hsl(0, 0%, 50%) 0%, hsla(0, 0%, 50%, 0) 100%);
    	background-color: #F00;
    }
    
    .ui-color-picker .picker {
    	width: 10px;
    	height: 10px;
    	margin: -5px 0 0 -5px;
    	border-radius: 50%;
    	border: 1px solid #FFF;
    	position: absolute;
    	top: 45%;
    	left: 45%;
    }
    
    .ui-color-picker .picker:before {
    	width: 8px;
    	height: 8px;
    	content: "";
    	position: absolute;
    	border: 1px solid #999;
    	border-radius: 50%;
    }
    
    .ui-color-picker .hue,
    .ui-color-picker .alpha {
    	width: 198px;
    	height: 28px;
    	margin: 5px;
    	border: 1px solid #FFF;
    	float: left;
    }
    
    .ui-color-picker .hue {
    	background: url("images/hue_mask.png");
    	background: -moz-linear-gradient(left, #F00 0%, #FF0 16.66%, #0F0 33.33%, #0FF 50%,
    				#00F 66.66%, #F0F 83.33%, #F00 100%);
    	background: -webkit-linear-gradient(left, #F00 0%, #FF0 16.66%, #0F0 33.33%, #0FF 50%,
    				#00F 66.66%, #F0F 83.33%, #F00 100%);
    	background: -ms-linear-gradient(left, #F00 0%, #FF0 16.66%, #0F0 33.33%, #0FF 50%,
    				#00F 66.66%, #F0F 83.33%, #F00 100%);
    	background: -o-linear-gradient(left, #F00 0%, #FF0 16.66%, #0F0 33.33%, #0FF 50%,
    				#00F 66.66%, #F0F 83.33%, #F00 100%);
    }
    
    .ui-color-picker .alpha {
    	border: 1px solid #CCC;
    	background: url("images/alpha_mask.png");
    }
    
    .ui-color-picker .slider-picker {
    	width: 2px;
    	height: 100%;
    	margin: 0 0 0 -2px;
    	border: 1px solid #777;
    	background-color: #FFF;
    	position: relative;
    	top: -1px;
    }
    
    /* input HSV and RGB */
    
    .ui-color-picker .info {
    	width: 200px;
    	margin: 5px;
    	float: left;
    }
    
    .ui-color-picker .info * {
    	float: left;
    }
    
    .ui-color-picker .input {
    	width: 64px;
    	margin: 5px 2px;
    	float: left;
    }
    
    .ui-color-picker .input .name {
    	height: 20px;
    	width: 30px;
    	text-align: center;
    	font-size: 14px;
    	line-height: 18px;
    	float: left;
    }
    
    .ui-color-picker .input input {
    	width: 30px;
    	height: 18px;
    	margin: 0;
    	padding: 0;
    	border: 1px solid #DDD;
    	text-align: center;
    	float: right;
    
    	-moz-user-select: text;
    	-webkit-user-select: text;
    	-ms-user-select: text;
    }
    
    .ui-color-picker .input[data-topic="lightness"] {
    	display: none;
    }
    
    .ui-color-picker[data-mode='HSL'] .input[data-topic="value"] {
    	display: none;
    }
    
    .ui-color-picker[data-mode='HSL'] .input[data-topic="lightness"] {
    	display: block;
    }
    
    .ui-color-picker .input[data-topic="alpha"] {
    	margin-top: 10px;
    	width: 93px;
    }
    
    .ui-color-picker .input[data-topic="alpha"] > .name {
    	width: 60px;
    }
    
    .ui-color-picker .input[data-topic="alpha"] > input {
    	float: right;
    }
    
    .ui-color-picker .input[data-topic="hexa"] {
    	width: auto;
    	float: right;
    	margin: 6px 8px 0 0;
    }
    
    .ui-color-picker .input[data-topic="hexa"] > .name {
    	display: none;
    }
    
    .ui-color-picker .input[data-topic="hexa"] > input {
    	width: 90px;
    	height: 24px;
    	padding: 2px 0;
    	-moz-box-sizing: border-box;
    	-webkit-box-sizing: border-box;
    	box-sizing: border-box;
    }
    
    /* Preview color */
    .ui-color-picker .preview {
    	width: 95px;
    	height: 53px;
    	margin: 5px;
    	margin-top: 10px;
    	border: 1px solid #DDD;
    	background-image: url("images/alpha.png");
    	float: left;
    	position: relative;
    }
    
    .ui-color-picker .preview:before {
    	height: 100%;
    	width: 50%;
    	left: 50%;
    	top: 0;
    	content: "";
    	background: #FFF;
    	position: absolute;
    	z-index: 1;
    }
    
    .ui-color-picker .preview-color {
    	width: 100%;
    	height: 100%;
    	background-color: rgba(255, 0, 0, 0.5);
    	position: absolute;
    	z-index: 1;
    }
    
    .ui-color-picker .switch_mode {
    	width: 10px;
    	height: 20px;
    	position: relative;
    	border-radius: 5px 0 0 5px;
    	border: 1px solid #DDD;
    	background-color: #EEE;
    	left: -12px;
    	top: -1px;
    	z-index: 1;
    	transition: all 0.5s;
    }
    
    .ui-color-picker .switch_mode:hover {
    	background-color: #CCC;
    	cursor: pointer;
    }
    
    /*
     * UI Component
     */
    
    .ui-input-slider {
    	height: 20px;
    	font-family: "Segoe UI", Arial, Helvetica, sans-serif;
    	-moz-user-select: none;
    	user-select: none;
    }
    
    .ui-input-slider * {
    	float: left;
    	height: 100%;
    }
    
    /* Input Slider */
    
    .ui-input-slider > input {
    	margin: 0;
    	padding: 0;
    	width: 50px;
    	text-align: center;
    
    	-moz-box-sizing: border-box;
    	-webkit-box-sizing: border-box;
    	box-sizing: border-box;
    }
    
    .ui-input-slider-info {
    	width: 90px;
    	padding: 0px 10px 0px 0px;
    	text-align: right;
    	text-transform: lowercase;
    	line-height: inherit;
    }
    
    .ui-input-slider-left, .ui-input-slider-right {
    	width: 16px;
    	cursor: pointer;
    	background: url("arrows.png") center left no-repeat;
    }
    
    .ui-input-slider-right {
    	background: url("arrows.png") center right no-repeat;
    }
    
    .ui-input-slider-name {
    	width: 90px;
    	padding: 0 10px 0 0;
    	text-align: right;
    	text-transform: lowercase;
    }
    
    .ui-input-slider-btn-set {
    	width: 25px;
    	background-color: #2C9FC9;
    	border-radius: 5px;
    	color: #FFF;
    	font-weight: bold;
    	line-height: 14px;
    	text-align: center;
    }
    
    .ui-input-slider-btn-set:hover {
    	background-color: #379B4A;
    	cursor: pointer;
    }
    
    /*
     * UI Slider
     */
    
    .ui-slider {
    	height: 20px;
    	margin: 10px 0;
    	font-family: "Segoe UI", Arial, Helvetica, sans-serif;
    	-moz-user-select: none;
    	user-select: none;
    }
    
    .ui-slider > * {
    	float: left;
    	height: 100%;
    	line-height: 100%;
    }
    
    /* Slider */
    
    .ui-slider-slider {
    	height: 10px;
    	width: 200px;
    	margin: 4px 10px;
    	display: block;
    	border: 1px solid #999;
    	border-radius: 3px;
    	background: #EEE;
    }
    
    .ui-slider-slider:hover {
    	cursor: pointer;
    }
    
    .ui-slider-name {
    	width: 90px;
    	padding: 0 10px 0 0;
    	text-align: right;
    	text-transform: lowercase;
    }
    
    .ui-slider-pointer {
    	width: 12px;
    	height: 13px;
    	margin: 0 0 0 -7px;
    	background-color: #EEE;
    	border: 1px solid #2C9FC9;
    	border-radius: 3px;
    	position: relative;
    	top: -3px;
    	left: 0%;
    }
    
    .ui-slider-button {
    	width: 25px;
    	background-color: #2C9FC9;
    	border-radius: 3px;
    	color: #FFF;
    	font-weight: bold;
    	line-height: 14px;
    	text-align: center;
    }
    
    .ui-slider-button:hover {
    	background-color: #379B4A;
    	cursor: pointer;
    }
    
    .ui-slider > input {
    	width: 50px;
    	margin: 0 10px;
    	padding: 0;
    	text-align: center;
    }
    
    /*
     * UI DropDown
     */
    
    /* Dropdown */
    
    .ui-dropdown {
    	height: 2em;
    	width: 120px;
    	font-family: "Segoe UI", Arial, Helvetica, sans-serif;
    	font-size: 12px;
    
    	background-image: url("dropdown_arrow.svg");
    	background-position: right 0.3em center;
    	background-repeat: no-repeat;
    	background-color: #359740;
    	background-size: 1.1em;
    
    	position: relative;
    
    	-moz-box-sizing: border-box;
    	-webkit-box-sizing: border-box;
    	box-sizing: border-box;
    
    	-moz-user-select: none;
    	-webkit-user-select: none;
    	-ms-user-select: none;
    	user-select: none;
    }
    
    .ui-dropdown:hover {
    	cursor: pointer;
    	background-color: #208B20;
    }
    
    /* Dropdown Select Button */
    
    .ui-dropdown-select {
    	padding: 0 0.75em;
    	color: #FFF;
    	line-height: 2em;
    }
    
    /* Dropdown List */
    
    .ui-dropdown-list {
    	width: 100%;
    	height: 150px;
    	max-height: 150px;
    	margin: 0;
    	padding: 0 0.3em;
    
    	border: 1px solid #3490D2;
    	border-color: #208B20;
    	background: #666;
    	background-color: #EEF1F5;
    	color: #000;
    
    	position: absolute;
    	top: 100%;
    	left: 0;
    	z-index: 100;
    
    	overflow: hidden;
    	transition: all 0.3s;
    
    	-moz-box-sizing: border-box;
    	-webkit-box-sizing: border-box;
    	box-sizing: border-box;
    }
    
    .ui-dropdown-list:hover {
    	overflow: auto;
    }
    
    .ui-dropdown-list[data-hidden='true'] {
    	height: 0 !important;
    	opacity: 0;
    	visibility: hidden;
    }
    
    .ui-dropdown[data-position='left'] .ui-dropdown-list {
    	left: -100%;
    	top: 0;
    }
    
    .ui-dropdown[data-position='right'] .ui-dropdown-list {
    	left: 100%;
    	top: 0;
    }
    
    .ui-dropdown-list > div {
    	width: 80%;
    	height: 1.6em;
    	margin: 0.3em 0;
    	padding: 0.3em 10%;
    	line-height: 1.6em;
    }
    
    .ui-dropdown-list > div:hover {
    	background: #3490D2;
    	color:#FFF;
    	border-radius: 2px;
    	cursor: pointer;
    }
    
    /*
     * COLOR PICKER TOOL
     */
    
    body {
    	width: 100%;
    	height: 100%;
    	margin: 0 auto;
    
    	font-family: "Segoe UI", Arial, Helvetica, sans-serif;
    
    	-moz-user-select: none;
    	-webkit-user-select: none;
    	-ms-user-select: none;
    	user-select: none;
    }
    
    body[data-dragging="true"] {
    }
    
    /**
     * Resize Handle
     */
    
    .resize-handle {
    	width: 10px;
    	height: 10px;
    	background: url("images/resize.png") center center no-repeat;
    	position: absolute;
    	bottom: 0;
    	right: 0;
    }
    
    [data-resize='both']:hover {
    	cursor: nw-resize !important;
    }
    
    [data-resize='width']:hover {
    	cursor: w-resize !important;
    }
    
    [data-resize='height']:hover {
    	cursor: n-resize !important;
    }
    
    /**
     * Main Container
     */
    
    #container {
    	width: 1000px;
    	height: 100%;
    	display: table;
    	margin: 0 auto;
    }
    
    
    #gradient-container {
    	width: 450px;
    	height: 250px;
    	min-width: 8px;
    	min-height: 8px;
    	margin: 100px auto;
    	border: 1px solid #DDD;
    	position: relative;
    }
    
    #gradient-container[data-alpha="true"]:after {
    	content: "";
    	width: 100%;
    	height: 100%;
    	background: url('images/canvas-pattern.png');
    	position: absolute;
    	z-index: -1;
    }
    
    /**
     * 	Gradient Axis
     */
    
    .gradient-axis {
    	width: 125%;
    	height: 4px;
    	margin: -3px 0 0 0;
    	border: 1px solid #CCC;
    	position: absolute;
    	top: 50%;
    	left: 0;
    	opacity: 0.5;
    }
    
    .gradient-axis[data-active='true'] {
    	opacity: 1;
    	z-index: 1;
    }
    
    .gradient-axis:after {
    	content: "";
    	width: 25px;
    	height: 100%;
    	background-color: #CCC;
    	position: absolute;
    	left: 0;
    	top: 0;
    }
    
    .gradient-axis .gradient-line {
    	width: 80%;
    	height: 100%;
    	margin: 0px auto;
    	position: relative;
    }
    
    .gradient-axis .gradient-line:hover {
    	cursor: pointer;
    }
    
    .gradient-axis .gradient-line:after,
    .gradient-axis .gradient-line:before {
    	content: "";
    	width: 1px;
    	height: 100px;
    	background-color: #CCC;
    	position: absolute;
    	top: -48px;
    }
    
    .gradient-axis .gradient-line:after {
    	left: -1px;
    }
    
    .gradient-axis .gradient-line:before {
    	right: -1px;
    }
    
    .gradient-axis .gradient-point {
    	width: 16px;
    	height: 16px;
    	margin: 0 0 0 -8px;
    	top: -7px;
    	border-radius: 50%;
    	background-color: #FFF;
    	border: 1px solid #999;
    	position: absolute;
    	z-index: 1;
    }
    
    .gradient-axis .gradient-point:after {
    	content: "";
    	width: 6px;
    	height: 6px;
    	border-radius: 50%;
    	background-color: #FFF;
    	border: 1px solid #999;
    	position: absolute;
    	top: 4px;
    	left: 4px;
    }
    
    .gradient-axis .gradient-point:hover:after,
    .gradient-axis .gradient-point[data-active="true"]:after {
    	background-color: #CCC;
    }
    
    .gradient-axis .rotate-point {
    	width: 25px;
    	height: 25px;
    	position: absolute;
    	top: -10.5px;
    	right: -12px;
    }
    
    .gradient-axis[axisID='0']:after {
    	background-color: #DA5C5C;
    }
    
    .gradient-axis[axisID='1']:after {
    	background-color: #5CDA9B;
    }
    
    .gradient-axis[axisID='2']:after {
    	background-color: #5C9BDA;
    }
    
    .gradient-axis[axisID='3']:after {
    	background-color: #5C5CDA;
    }
    
    .gradient-axis[axisID='0'] path {
    	fill: #DA5C5C;
    }
    
    .gradient-axis[axisID='1'] path {
    	fill: #5CDA9B;
    }
    
    .gradient-axis[axisID='2'] path {
    	fill: #5C9BDA;
    }
    
    .gradient-axis[axisID='3'] path {
    	fill: #5C5CDA;
    }
    
    
    .gradient-axis .rotate-point:hover {
    	cursor: pointer;
    }
    
    /**
     * Controls
     */
    
    #controls {
    	width: 100%;
    	margin: 0 auto;
    	display: table;
    }
    
    #controls .section {
    	width: 50%;
    	padding: 10px;
    	display: table;
    	float: left;
    
    	-moz-box-sizing: border-box;
    	-webkit-box-sizing: border-box;
    	box-sizing: border-box;
    }
    
    #controls .section .title {
    	width: 90%;
    	margin: 0 0 10px 0;
    	padding: 5px;
    	border-bottom: 1px solid #DDD;
    	font-size: 18px;
    	color: #777;
    }
    
    #controls .property {
    	width: 100%;
    	height: 24px;
    	margin: 10px 0;
    	padding: 3px 0;
    	display: table;
    }
    
    #controls .property > * {
    	float: left;
    }
    
    #controls .property .name {
    	width: 90px;
    	padding: 0px 10px 0px 0px;
    	text-align: right;
    	line-height: 150%;
    }
    
    /* Button */
    
    #controls .button {
    	height: 24px;
    	padding: 0 10px;
    	background-color: #379B4A;
    	border-radius: 3px;
    	font-size: 14px;
    	color: #FFF;
    	display: inline;
    	float: left;
    }
    
    #controls .button[data-state='disabled'] {
    	background-color: #CCC !important;
    	color: #777 !important;
    }
    
    #controls .button[data-state='disabled']:hover {
    	background-color: #CCC !important;
    	cursor: default !important;
    }
    
    #controls .button:hover {
    	cursor: pointer;
    	background-color: #208B20;
    }
    
    /* Active Point  */
    
    .ui-input-slider {
    	height: 24px;
    	line-height: 20px;
    }
    
    #delete-point {
    	margin: 0 58px 0 0;
    	float: right !important;
    }
    
    #controls .ui-color-picker[data-topic="picker"] {
    	margin: 20px 0 0 0;
    }
    
    #controls .ui-input-slider[data-topic="axis-rotation"] {
    }
    
    #controls .ui-dropdown {
    	width: 130px;
    	height: 24px;
    }
    
    #controls .ui-dropdown-select {
    	line-height: 24px;
    }
    
    #controls .ui-dropdown-list {
    	height: 66px;
    	line-height: 2.5em;
    	overflow: hidden;
    }
    
    #delete-axis {
    	margin: 0 38px 0 0;
    	float: right !important;
    }
    
    /* Tool controls */
    
    #tool-section .property .name {
    	width: 150px;
    }
    
    #canvas-bg {
    	width: 16px;
    	height: 16px;
    	margin: 5px;
    	background: url("images/toggle-background.png") center right no-repeat;
    }
    
    #canvas-bg:hover {
    	cursor: pointer;
    }
    
    #canvas-bg[data-alpha='false'] {
    	background-position: center left;
    }
    
    #canvas-bg[data-alpha='true'] {
    	background-position: center right;
    }
    
    /* Order gradients */
    
    #order {
    	margin-left: 24px;
    }
    
    #gradient-axes {
    	width: 100%;
    	height: 30px;
    	padding: 0 0 0 15px;
    	display: table;
    	position: relative;
    }
    
    #gradient-axes .axis {
    	width: 50px;
    	height: 20px;
    	margin: 5px 0;
    	background-color: #DDD;
    	text-align: center;
    	float: left;
    	transition: all 0.3s;
    	position: absolute;
    }
    
    #gradient-axes .axis:hover {
    	margin: 2px 0;
    	height: 26px;
    	background-color: #CCC;
    	cursor: pointer;
    }
    
    #gradient-axes .axis[data-state='active'] {
    	margin: 2px 0;
    	height: 26px;
    }
    
    #gradient-axes .axis[data-state='active']:after {
    	content: "*";
    	color: #FFF;
    	padding: 3px;
    }
    
    #gradient-axes .axis[axisID='0'] {
    	background-color: #DA5C5C;
    }
    
    #gradient-axes .axis[axisID='1'] {
    	background-color: #5CDA9B;
    }
    
    #gradient-axes .axis[axisID='2'] {
    	background-color: #5C9BDA;
    }
    
    #gradient-axes .axis[axisID='3'] {
    	background-color: #5C5CDA;
    }
    
    #add-axis.button {
    	margin: 0 38px 0 0;
    	float: right;
    }
    
    #gradient-order {
    	width: 60%;
    	height: 5px;
    	margin: 5px 0 0 0;
    	overflow: visible;
    	background-color: #CCC;
    	position: relative;
    }
    
    #gradient-order:before {
    	content: "gradient order - drag to order";
    	position: absolute;
    	top: 100%;
    	color: #CCC;
    }
    
    #gradient-order:after {
    	content: "";
    	width: 24px;
    	height: 24px;
    	background: url('images/arrow.svg');
    	background-size: 24px 24px;
    	position: absolute;
    	right: -10px;
    	top: -9.5px;
    }
    
    
    /**
     * Output
     */
    
    #output {
    	width: 100%;
    	padding: 10px 0;
    	margin: 20px 0 50px 0;
    	border: 2px dashed #CCC;
    	border-radius: 5px;
    	display: table;
    	font-size: 13px;
    	overflow: hidden;
    
    	-moz-user-select: text;
    	-webkit-user-select: text;
    	-ms-user-select: text;
    	user-select: text;
    }
    
    #output .css-property {
    	width: 90%;
    	margin: 5px 5%;
    	color: #777;
    	position: relative;
    	float: left;
    }
    
    #output .property {
    	height: 100%;
    	width: 12%;
    	position: absolute;
    	left: 0;
    }
    
    #output .value {
    	width: 88%;
    	position: absolute;
    	white-space: pre;
    	word-wrap: break-word;
    	display: block;
    	right: 0;
    
    }
    
    
    

    JavaScript Content

    var UIColorPicker = (function UIColorPicker() {
    	'use strict';
    
    	function getElemById(id) {
    		return document.getElementById(id);
    	}
    
    	var subscribers = [];
    	var pickers = [];
    
    	/**
    	 * RGBA Color class
    	 *
    	 * HSV/HSB and HSL (hue, saturation, value / brightness, lightness)
    	 * @param hue			0-360
    	 * @param saturation	0-100
    	 * @param value 		0-100
    	 * @param lightness		0-100
    	 */
    
    	function Color(color) {
    
    		if(color instanceof Color === true) {
    			this.copy(color);
    			return;
    		}
    
    		this.r = 0;
    		this.g = 0;
    		this.b = 0;
    		this.a = 1;
    		this.hue = 0;
    		this.saturation = 0;
    		this.value = 0;
    		this.lightness = 0;
    		this.format = 'HSV';
    	}
    
    	function RGBColor(r, g, b) {
    		var color = new Color();
    		color.setRGBA(r, g, b, 1);
    		return color;
    	}
    
    	function RGBAColor(r, g, b, a) {
    		var color = new Color();
    		color.setRGBA(r, g, b, a);
    		return color;
    	}
    
    	function HSVColor(h, s, v) {
    		var color = new Color();
    		color.setHSV(h, s, v);
    		return color;
    	}
    
    	function HSVAColor(h, s, v, a) {
    		var color = new Color();
    		color.setHSV(h, s, v);
    		color.a = a;
    		return color;
    	}
    
    	function HSLColor(h, s, l) {
    		var color = new Color();
    		color.setHSL(h, s, l);
    		return color;
    	}
    
    	function HSLAColor(h, s, l, a) {
    		var color = new Color();
    		color.setHSL(h, s, l);
    		color.a = a;
    		return color;
    	}
    
    	Color.prototype.copy = function copy(obj) {
    		if(obj instanceof Color !== true) {
    			console.log('Typeof parameter not Color');
    			return;
    		}
    
    		this.r = obj.r;
    		this.g = obj.g;
    		this.b = obj.b;
    		this.a = obj.a;
    		this.hue = obj.hue;
    		this.saturation = obj.saturation;
    		this.value = obj.value;
    		this.format = '' + obj.format;
    		this.lightness = obj.lightness;
    	};
    
    	Color.prototype.setFormat = function setFormat(format) {
    		if (format === 'HSV')
    			this.format = 'HSV';
    		if (format === 'HSL')
    			this.format = 'HSL';
    	};
    
    	/*========== Methods to set Color Properties ==========*/
    
    	Color.prototype.isValidRGBValue = function isValidRGBValue(value) {
    		return (typeof(value) === 'number' && isNaN(value) === false &&
    			value >= 0 && value <= 255);
    	};
    
    	Color.prototype.setRGBA = function setRGBA(red, green, blue, alpha) {
    		if (this.isValidRGBValue(red) === false ||
    			this.isValidRGBValue(green) === false ||
    			this.isValidRGBValue(blue) === false)
    			return;
    
    			this.r = red | 0;
    			this.g = green | 0;
    			this.b = blue | 0;
    
    		if (this.isValidRGBValue(alpha) === true)
    			this.a = alpha | 0;
    	};
    
    	Color.prototype.setByName = function setByName(name, value) {
    		if (name === 'r' || name === 'g' || name === 'b') {
    			if(this.isValidRGBValue(value) === false)
    				return;
    
    			this[name] = value;
    			this.updateHSX();
    		}
    	};
    
    	Color.prototype.setHSV = function setHSV(hue, saturation, value) {
    		this.hue = hue;
    		this.saturation = saturation;
    		this.value = value;
    		this.HSVtoRGB();
    	};
    
    	Color.prototype.setHSL = function setHSL(hue, saturation, lightness) {
    		this.hue = hue;
    		this.saturation = saturation;
    		this.lightness = lightness;
    		this.HSLtoRGB();
    	};
    
    	Color.prototype.setHue = function setHue(value) {
    		if (typeof(value) !== 'number' || isNaN(value) === true ||
    			value < 0 || value > 359)
    			return;
    		this.hue = value;
    		this.updateRGB();
    	};
    
    	Color.prototype.setSaturation = function setSaturation(value) {
    		if (typeof(value) !== 'number' || isNaN(value) === true ||
    			value < 0 || value > 100)
    			return;
    		this.saturation = value;
    		this.updateRGB();
    	};
    
    	Color.prototype.setValue = function setValue(value) {
    		if (typeof(value) !== 'number' || isNaN(value) === true ||
    			value < 0 || value > 100)
    			return;
    		this.value = value;
    		this.HSVtoRGB();
    	};
    
    	Color.prototype.setLightness = function setLightness(value) {
    		if (typeof(value) !== 'number' || isNaN(value) === true ||
    			value < 0 || value > 100)
    			return;
    		this.lightness = value;
    		this.HSLtoRGB();
    	};
    
    	Color.prototype.setAlpha = function setAlpha(value) {
    		if (typeof(value) !== 'number' || isNaN(value) === true ||
    			value < 0 || value > 1)
    			return;
    		this.a = parseFloat(value.toFixed(2));
    	};
    
    	Color.prototype.setHexa = function setHexa(value) {
    		var valid  = /(^#{0,1}[0-9A-F]{6}$)|(^#{0,1}[0-9A-F]{3}$)/i.test(value);
    
    		if (valid !== true)
    			return;
    
    		if (value[0] === '#')
    			value = value.slice(1, value.length);
    
    		if (value.length === 3)
    			value = value.replace(/([0-9A-F])([0-9A-F])([0-9A-F])/i,'$1$1$2$2$3$3');
    
    		this.r = parseInt(value.substr(0, 2), 16);
    		this.g = parseInt(value.substr(2, 2), 16);
    		this.b = parseInt(value.substr(4, 2), 16);
    
    		this.alpha	= 1;
    		this.RGBtoHSV();
    	};
    
    	/*========== Conversion Methods ==========*/
    
    	Color.prototype.convertToHSL = function convertToHSL() {
    		if (this.format === 'HSL')
    			return;
    
    		this.setFormat('HSL');
    		this.RGBtoHSL();
    	};
    
    	Color.prototype.convertToHSV = function convertToHSV() {
    		if (this.format === 'HSV')
    			return;
    
    		this.setFormat('HSV');
    		this.RGBtoHSV();
    	};
    
    	/*========== Update Methods ==========*/
    
    	Color.prototype.updateRGB = function updateRGB() {
    		if (this.format === 'HSV') {
    			this.HSVtoRGB();
    			return;
    		}
    
    		if (this.format === 'HSL') {
    			this.HSLtoRGB();
    			return;
    		}
    	};
    
    	Color.prototype.updateHSX = function updateHSX() {
    		if (this.format === 'HSV') {
    			this.RGBtoHSV();
    			return;
    		}
    
    		if (this.format === 'HSL') {
    			this.RGBtoHSL();
    			return;
    		}
    	};
    
    	Color.prototype.HSVtoRGB = function HSVtoRGB() {
    		var sat = this.saturation / 100;
    		var value = this.value / 100;
    		var C = sat * value;
    		var H = this.hue / 60;
    		var X = C * (1 - Math.abs(H % 2 - 1));
    		var m = value - C;
    		var precision = 255;
    
    		C = (C + m) * precision | 0;
    		X = (X + m) * precision | 0;
    		m = m * precision | 0;
    
    		if (H >= 0 && H < 1) {	this.setRGBA(C, X, m);	return; }
    		if (H >= 1 && H < 2) {	this.setRGBA(X, C, m);	return; }
    		if (H >= 2 && H < 3) {	this.setRGBA(m, C, X);	return; }
    		if (H >= 3 && H < 4) {	this.setRGBA(m, X, C);	return; }
    		if (H >= 4 && H < 5) {	this.setRGBA(X, m, C);	return; }
    		if (H >= 5 && H < 6) {	this.setRGBA(C, m, X);	return; }
    	};
    
    	Color.prototype.HSLtoRGB = function HSLtoRGB() {
    		var sat = this.saturation / 100;
    		var light = this.lightness / 100;
    		var C = sat * (1 - Math.abs(2 * light - 1));
    		var H = this.hue / 60;
    		var X = C * (1 - Math.abs(H % 2 - 1));
    		var m = light - C/2;
    		var precision = 255;
    
    		C = (C + m) * precision | 0;
    		X = (X + m) * precision | 0;
    		m = m * precision | 0;
    
    		if (H >= 0 && H < 1) {	this.setRGBA(C, X, m);	return; }
    		if (H >= 1 && H < 2) {	this.setRGBA(X, C, m);	return; }
    		if (H >= 2 && H < 3) {	this.setRGBA(m, C, X);	return; }
    		if (H >= 3 && H < 4) {	this.setRGBA(m, X, C);	return; }
    		if (H >= 4 && H < 5) {	this.setRGBA(X, m, C);	return; }
    		if (H >= 5 && H < 6) {	this.setRGBA(C, m, X);	return; }
    	};
    
    	Color.prototype.RGBtoHSV = function RGBtoHSV() {
    		var red		= this.r / 255;
    		var green	= this.g / 255;
    		var blue	= this.b / 255;
    
    		var cmax = Math.max(red, green, blue);
    		var cmin = Math.min(red, green, blue);
    		var delta = cmax - cmin;
    		var hue = 0;
    		var saturation = 0;
    
    		if (delta) {
    			if (cmax === red ) { hue = ((green - blue) / delta); }
    			if (cmax === green ) { hue = 2 + (blue - red) / delta; }
    			if (cmax === blue ) { hue = 4 + (red - green) / delta; }
    			if (cmax) saturation = delta / cmax;
    		}
    
    		this.hue = 60 * hue | 0;
    		if (this.hue < 0) this.hue += 360;
    		this.saturation = (saturation * 100) | 0;
    		this.value = (cmax * 100) | 0;
    	};
    
    	Color.prototype.RGBtoHSL = function RGBtoHSL() {
    		var red		= this.r / 255;
    		var green	= this.g / 255;
    		var blue	= this.b / 255;
    
    		var cmax = Math.max(red, green, blue);
    		var cmin = Math.min(red, green, blue);
    		var delta = cmax - cmin;
    		var hue = 0;
    		var saturation = 0;
    		var lightness = (cmax + cmin) / 2;
    		var X = (1 - Math.abs(2 * lightness - 1));
    
    		if (delta) {
    			if (cmax === red ) { hue = ((green - blue) / delta); }
    			if (cmax === green ) { hue = 2 + (blue - red) / delta; }
    			if (cmax === blue ) { hue = 4 + (red - green) / delta; }
    			if (cmax) saturation = delta / X;
    		}
    
    		this.hue = 60 * hue | 0;
    		if (this.hue < 0) this.hue += 360;
    		this.saturation = (saturation * 100) | 0;
    		this.lightness = (lightness * 100) | 0;
    	};
    
    	/*========== Get Methods ==========*/
    
    	Color.prototype.getHexa = function getHexa() {
    		var r = this.r.toString(16);
    		var g = this.g.toString(16);
    		var b = this.b.toString(16);
    		if (this.r < 16) r = '0' + r;
    		if (this.g < 16) g = '0' + g;
    		if (this.b < 16) b = '0' + b;
    		var value = '#' + r + g + b;
    		return value.toUpperCase();
    	};
    
    	Color.prototype.getRGBA = function getRGBA() {
    
    		var rgb = '(' + this.r + ', ' + this.g + ', ' + this.b;
    		var a = '';
    		var v = '';
    		var x = parseFloat(this.a);
    		if (x !== 1) {
    			a = 'a';
    			v = ', ' + x;
    		}
    
    		var value = 'rgb' + a + rgb + v + ')';
    		return value;
    	};
    
    	Color.prototype.getHSLA = function getHSLA() {
    		if (this.format === 'HSV') {
    			var color = new Color(this);
    			color.setFormat('HSL');
    			color.updateHSX();
    			return color.getHSLA();
    		}
    
    		var a = '';
    		var v = '';
    		var hsl = '(' + this.hue + ', ' + this.saturation + '%, ' + this.lightness +'%';
    		var x = parseFloat(this.a);
    		if (x !== 1) {
    			a = 'a';
    			v = ', ' + x;
    		}
    
    		var value = 'hsl' + a + hsl + v + ')';
    		return value;
    	};
    
    	Color.prototype.getColor = function getColor() {
    		if (this.a | 0 === 1)
    			return this.getHexa();
    		return this.getRGBA();
    	};
    
    	/*=======================================================================*/
    	/*=======================================================================*/
    
    	/*========== Capture Mouse Movement ==========*/
    
    	var setMouseTracking = function setMouseTracking(elem, callback) {
    		elem.addEventListener('mousedown', function(e) {
    			callback(e);
    			document.addEventListener('mousemove', callback);
    		});
    
    		document.addEventListener('mouseup', function(e) {
    			document.removeEventListener('mousemove', callback);
    		});
    	};
    
    	/*====================*/
    	// Color Picker Class
    	/*====================*/
    
    	function ColorPicker(node) {
    		this.color = new Color();
    		this.node = node;
    		this.subscribers = [];
    
    		var type = this.node.getAttribute('data-mode');
    		var topic = this.node.getAttribute('data-topic');
    
    		this.topic = topic;
    		this.picker_mode = (type === 'HSL') ? 'HSL' : 'HSV';
    		this.color.setFormat(this.picker_mode);
    
    		this.createPickingArea();
    		this.createHueArea();
    
    		this.newInputComponent('H', 'hue', this.inputChangeHue.bind(this));
    		this.newInputComponent('S', 'saturation', this.inputChangeSaturation.bind(this));
    		this.newInputComponent('V', 'value', this.inputChangeValue.bind(this));
    		this.newInputComponent('L', 'lightness', this.inputChangeLightness.bind(this));
    
    		this.createAlphaArea();
    
    		this.newInputComponent('R', 'red', this.inputChangeRed.bind(this));
    		this.newInputComponent('G', 'green', this.inputChangeGreen.bind(this));
    		this.newInputComponent('B', 'blue', this.inputChangeBlue.bind(this));
    
    		this.createPreviewBox();
    		this.createChangeModeButton();
    
    		this.newInputComponent('alpha', 'alpha', this.inputChangeAlpha.bind(this));
    		this.newInputComponent('hexa', 'hexa', this.inputChangeHexa.bind(this));
    
    		this.setColor(this.color);
    		pickers[topic] = this;
    	}
    
    	/*************************************************************************/
    	//				Function for generating the color-picker
    	/*************************************************************************/
    
    	ColorPicker.prototype.createPickingArea = function createPickingArea() {
    		var area = document.createElement('div');
    		var picker = document.createElement('div');
    
    		area.className = 'picking-area';
    		picker.className = 'picker';
    
    		this.picking_area = area;
    		this.color_picker = picker;
    		setMouseTracking(area, this.updateColor.bind(this));
    
    		area.appendChild(picker);
    		this.node.appendChild(area);
    	};
    
    	ColorPicker.prototype.createHueArea = function createHueArea() {
    		var area = document.createElement('div');
    		var picker = document.createElement('div');
    
    		area.className = 'hue';
    		picker.className ='slider-picker';
    
    		this.hue_area = area;
    		this.hue_picker = picker;
    		setMouseTracking(area, this.updateHueSlider.bind(this));
    
    		area.appendChild(picker);
    		this.node.appendChild(area);
    	};
    
    	ColorPicker.prototype.createAlphaArea = function createAlphaArea() {
    		var mask = document.createElement('div');
    		var picker = document.createElement('div');
    
    		mask.className = 'alpha';
    		picker.className = 'slider-picker';
    
    		this.alpha_mask = mask;
    		this.alpha_picker = picker;
    		setMouseTracking(mask, this.updateAlphaSlider.bind(this));
    
    		mask.appendChild(picker);
    		this.node.appendChild(mask);
    	};
    
    	ColorPicker.prototype.createPreviewBox = function createPreviewBox(e) {
    		var preview_box = document.createElement('div');
    		var preview_color = document.createElement('div');
    
    		preview_box.className = 'preview';
    		preview_color.className = 'preview-color';
    
    		this.preview_color = preview_color;
    
    		preview_box.appendChild(preview_color);
    		this.node.appendChild(preview_box);
    	};
    
    	ColorPicker.prototype.newInputComponent = function newInputComponent(title, topic, onChangeFunc) {
    		var wrapper = document.createElement('div');
    		var input = document.createElement('input');
    		var info = document.createElement('span');
    
    		wrapper.className = 'input';
    		wrapper.setAttribute('data-topic', topic);
    		info.textContent = title;
    		info.className = 'name';
    		input.setAttribute('type', 'text');
    
    		wrapper.appendChild(info);
    		wrapper.appendChild(input);
    		this.node.appendChild(wrapper);
    
    		input.addEventListener('change', onChangeFunc);
    		input.addEventListener('click', function() {
    			this.select();
    		});
    
    		this.subscribe(topic, function(value) {
    			input.value = value;
    		});
    	};
    
    	ColorPicker.prototype.createChangeModeButton = function createChangeModeButton() {
    
    		var button = document.createElement('div');
    		button.className = 'switch_mode';
    		button.addEventListener('click', function() {
    			if (this.picker_mode === 'HSV')
    				this.setPickerMode('HSL');
    			else
    				this.setPickerMode('HSV');
    
    		}.bind(this));
    
    		this.node.appendChild(button);
    	};
    
    	/*************************************************************************/
    	//					Updates properties of UI elements
    	/*************************************************************************/
    
    	ColorPicker.prototype.updateColor = function updateColor(e) {
    		var x = e.pageX - this.picking_area.offsetLeft;
    		var y = e.pageY - this.picking_area.offsetTop;
    
    		// width and height should be the same
    		var size = this.picking_area.clientWidth;
    
    		if (x > size) x = size;
    		if (y > size) y = size;
    		if (x < 0) x = 0;
    		if (y < 0) y = 0;
    
    		var value = 100 - (y * 100 / size) | 0;
    		var saturation = x * 100 / size | 0;
    
    		if (this.picker_mode === 'HSV')
    			this.color.setHSV(this.color.hue, saturation, value);
    		if (this.picker_mode === 'HSL')
    			this.color.setHSL(this.color.hue, saturation, value);
    
    		this.color_picker.style.left = x + 'px';
    		this.color_picker.style.top = y + 'px';
    
    		this.updateAlphaGradient();
    		this.updatePreviewColor();
    
    		this.notify('value', value);
    		this.notify('lightness', value);
    		this.notify('saturation', saturation);
    
    		this.notify('red', this.color.r);
    		this.notify('green', this.color.g);
    		this.notify('blue', this.color.b);
    		this.notify('hexa', this.color.getHexa());
    
    		notify(this.topic, this.color);
    	};
    
    	ColorPicker.prototype.updateHueSlider = function updateHueSlider(e) {
    		var x = e.pageX - this.hue_area.offsetLeft;
    		var width = this.hue_area.clientWidth;
    
    		if (x < 0) x = 0;
    		if (x > width) x = width;
    
    		var hue = ((359 * x) / width) | 0;
    
    		this.updateSliderPosition(this.hue_picker, x - 1);
    		this.setHue(hue);
    	};
    
    	ColorPicker.prototype.updateAlphaSlider = function updateAlphaSlider(e) {
    		var x = e.pageX - this.alpha_mask.offsetLeft;
    		var width = this.alpha_mask.clientWidth;
    
    		if (x < 0) x = 0;
    		if (x > width) x = width;
    
    		this.color.a = (x / width).toFixed(2);
    
    		this.updateSliderPosition(this.alpha_picker, x - 1);
    		this.updatePreviewColor();
    
    		this.notify('alpha', this.color.a);
    		notify(this.topic, this.color);
    	};
    
    	ColorPicker.prototype.setHue = function setHue(value) {
    		this.color.setHue(value);
    
    		this.updatePickerBackground();
    		this.updateAlphaGradient();
    		this.updatePreviewColor();
    
    		this.notify('red', this.color.r);
    		this.notify('green', this.color.g);
    		this.notify('blue', this.color.b);
    		this.notify('hexa', this.color.getHexa());
    		this.notify('hue', this.color.hue);
    
    		notify(this.topic, this.color);
    	};
    
    	// Updates when one of Saturation/Value/Lightness changes
    	ColorPicker.prototype.updateSLV = function updateSLV() {
    		this.updatePickerPosition();
    		this.updateAlphaGradient();
    		this.updatePreviewColor();
    
    		this.notify('red', this.color.r);
    		this.notify('green', this.color.g);
    		this.notify('blue', this.color.b);
    		this.notify('hexa', this.color.getHexa());
    
    		notify(this.topic, this.color);
    	};
    
    	/*************************************************************************/
    	//				Update positions of various UI elements
    	/*************************************************************************/
    
    	ColorPicker.prototype.updatePickerPosition = function updatePickerPosition() {
    		var size = this.picking_area.clientWidth;
    		var value = 0;
    
    		if (this.picker_mode === 'HSV')
    			value = this.color.value;
    		if (this.picker_mode === 'HSL')
    			value = this.color.lightness;
    
    		var x = (this.color.saturation * size / 100) | 0;
    		var y = size - (value * size / 100) | 0;
    
    		this.color_picker.style.left = x + 'px';
    		this.color_picker.style.top = y + 'px';
    	};
    
    	ColorPicker.prototype.updateSliderPosition = function updateSliderPosition(elem, pos) {
    		elem.style.left = pos + 'px';
    	};
    
    	ColorPicker.prototype.updateHuePicker = function updateHuePicker() {
    		var size = this.hue_area.clientWidth;
    		var pos = (this.color.hue * size / 360 ) | 0;
    		this.hue_picker.style.left = pos + 'px';
    	};
    
    	ColorPicker.prototype.updateAlphaPicker = function updateAlphaPicker() {
    		var size = this.alpha_mask.clientWidth;
    		var pos = (this.color.a * size) | 0;
    		this.alpha_picker.style.left = pos + 'px';
    	};
    
    	/*************************************************************************/
    	//						Update background colors
    	/*************************************************************************/
    
    	ColorPicker.prototype.updatePickerBackground = function updatePickerBackground() {
    		var nc = new Color(this.color);
    		nc.setHSV(nc.hue, 100, 100);
    		this.picking_area.style.backgroundColor = nc.getHexa();
    	};
    
    	ColorPicker.prototype.updateAlphaGradient = function updateAlphaGradient() {
    		this.alpha_mask.style.backgroundColor = this.color.getHexa();
    	};
    
    	ColorPicker.prototype.updatePreviewColor = function updatePreviewColor() {
    		this.preview_color.style.backgroundColor = this.color.getColor();
    	};
    
    	/*************************************************************************/
    	//						Update input elements
    	/*************************************************************************/
    
    	ColorPicker.prototype.inputChangeHue = function inputChangeHue(e) {
    		var value = parseInt(e.target.value);
    		this.setHue(value);
    		this.updateHuePicker();
    	};
    
    	ColorPicker.prototype.inputChangeSaturation = function inputChangeSaturation(e) {
    		var value = parseInt(e.target.value);
    		this.color.setSaturation(value);
    		e.target.value = this.color.saturation;
    		this.updateSLV();
    	};
    
    	ColorPicker.prototype.inputChangeValue = function inputChangeValue(e) {
    		var value = parseInt(e.target.value);
    		this.color.setValue(value);
    		e.target.value = this.color.value;
    		this.updateSLV();
    	};
    
    	ColorPicker.prototype.inputChangeLightness = function inputChangeLightness(e) {
    		var value = parseInt(e.target.value);
    		this.color.setLightness(value);
    		e.target.value = this.color.lightness;
    		this.updateSLV();
    	};
    
    	ColorPicker.prototype.inputChangeRed = function inputChangeRed(e) {
    		var value = parseInt(e.target.value);
    		this.color.setByName('r', value);
    		e.target.value = this.color.r;
    		this.setColor(this.color);
    	};
    
    	ColorPicker.prototype.inputChangeGreen = function inputChangeGreen(e) {
    		var value = parseInt(e.target.value);
    		this.color.setByName('g', value);
    		e.target.value = this.color.g;
    		this.setColor(this.color);
    	};
    
    	ColorPicker.prototype.inputChangeBlue = function inputChangeBlue(e) {
    		var value = parseInt(e.target.value);
    		this.color.setByName('b', value);
    		e.target.value = this.color.b;
    		this.setColor(this.color);
    	};
    
    	ColorPicker.prototype.inputChangeAlpha = function inputChangeAlpha(e) {
    		var value = parseFloat(e.target.value);
    
    		if (typeof value === 'number' && isNaN(value) === false &&
    			value >= 0 && value <= 1)
    			this.color.a = value.toFixed(2);
    
    		e.target.value = this.color.a;
    		this.updateAlphaPicker();
    		this.updatePreviewColor();
    	};
    
    	ColorPicker.prototype.inputChangeHexa = function inputChangeHexa(e) {
    		var value = e.target.value;
    		this.color.setHexa(value);
    		this.setColor(this.color);
    	};
    
    	/*************************************************************************/
    	//							Internal Pub/Sub
    	/*************************************************************************/
    
    	ColorPicker.prototype.subscribe = function subscribe(topic, callback) {
    		this.subscribers[topic] = callback;
    	};
    
    	ColorPicker.prototype.notify = function notify(topic, value) {
    		if (this.subscribers[topic])
    			this.subscribers[topic](value);
    	};
    
    	/*************************************************************************/
    	//							Set Picker Properties
    	/*************************************************************************/
    
    	ColorPicker.prototype.setColor = function setColor(color) {
    		if(color instanceof Color !== true) {
    			console.log('Typeof parameter not Color');
    			return;
    		}
    
    		if (color.format !== this.picker_mode) {
    			color.setFormat(this.picker_mode);
    			color.updateHSX();
    		}
    
    		this.color.copy(color);
    		this.updateHuePicker();
    		this.updatePickerPosition();
    		this.updatePickerBackground();
    		this.updateAlphaPicker();
    		this.updatePreviewColor();
    		this.updateAlphaGradient();
    
    		this.notify('red', this.color.r);
    		this.notify('green', this.color.g);
    		this.notify('blue', this.color.b);
    
    		this.notify('hue', this.color.hue);
    		this.notify('saturation', this.color.saturation);
    		this.notify('value', this.color.value);
    		this.notify('lightness', this.color.lightness);
    
    		this.notify('alpha', this.color.a);
    		this.notify('hexa', this.color.getHexa());
    		notify(this.topic, this.color);
    	};
    
    	ColorPicker.prototype.setPickerMode = function setPickerMode(mode) {
    		if (mode !== 'HSV' && mode !== 'HSL')
    			return;
    
    		this.picker_mode = mode;
    		this.node.setAttribute('data-mode', this.picker_mode);
    		this.setColor(this.color);
    	};
    
    	/*************************************************************************/
    	//								UNUSED
    	/*************************************************************************/
    
    	var setPickerMode = function setPickerMode(topic, mode) {
    		if (pickers[topic])
    			pickers[topic].setPickerMode(mode);
    	};
    
    	var setColor = function setColor(topic, color) {
    		if (pickers[topic])
    			pickers[topic].setColor(color);
    	};
    
    	var getColor = function getColor(topic) {
    		if (pickers[topic])
    			return new Color(pickers[topic].color);
    	};
    
    	var subscribe = function subscribe(topic, callback) {
    		if (subscribers[topic] === undefined)
    			subscribers[topic] = [];
    
    		subscribers[topic].push(callback);
    	};
    
    	var unsubscribe = function unsubscribe(callback) {
    		subscribers.indexOf(callback);
    		subscribers.splice(index, 1);
    	};
    
    	var notify = function notify(topic, value) {
    		if (subscribers[topic] === undefined || subscribers[topic].length === 0)
    			return;
    
    		var color = new Color(value);
    		for (var i in subscribers[topic])
    			subscribers[topic][i](color);
    	};
    
    	var init = function init() {
    		var elem = document.querySelectorAll('.ui-color-picker');
    		var size = elem.length;
    		for (var i = 0; i < size; i++)
    			new ColorPicker(elem[i]);
    	};
    
    	return {
    		init : init,
    		Color : Color,
    		RGBColor : RGBColor,
    		RGBAColor : RGBAColor,
    		HSVColor : HSVColor,
    		HSVAColor : HSVAColor,
    		HSLColor : HSLColor,
    		HSLAColor : HSLAColor,
    		setColor : setColor,
    		getColor : getColor,
    		subscribe : subscribe,
    		unsubscribe : unsubscribe,
    		setPickerMode : setPickerMode
    	};
    
    })();
    
    /**
     * UI-DropDown Select
     */
    
    var DropDownManager = (function DropdownManager() {
    	'use strict';
    
    	var subscribers = {};
    	var dropdowns = [];
    	var active = null;
    
    	var visbility = ["hidden", "visible"];
    
    	var DropDown = function DropDown(node) {
    		var topic = node.getAttribute('data-topic');
    		var label = node.getAttribute('data-label');
    		var selected = node.getAttribute('data-selected') | 0;
    
    		var select = document.createElement('div');
    		var list = document.createElement('div');
    		var uval = 0;
    		var option = null;
    		var option_value = null;
    
    		list.className = 'ui-dropdown-list';
    		select.className = 'ui-dropdown-select';
    
    		while (node.firstElementChild !== null) {
    			option = node.firstElementChild;
    			option_value = option.getAttribute('data-value');
    
    			if (option_value === null)
    				option.setAttribute('data-value', uval);
    
    			list.appendChild(node.firstElementChild);
    			uval++;
    		}
    
    		node.appendChild(select);
    		node.appendChild(list);
    
    		select.onclick = this.toggle.bind(this);
    		list.onclick = this.updateValue.bind(this);
    		document.addEventListener('click', clickOut);
    
    		this.state = 0;
    		this.time = 0;
    		this.dropmenu = list;
    		this.select = select;
    		this.toggle(false);
    		this.value = {};
    		this.topic = topic;
    
    		if (label)
    			select.textContent = label;
    		else
    			this.setNodeValue(list.children[selected]);
    
    		dropdowns[topic] = this;
    
    	};
    
    	DropDown.prototype.toggle = function toggle(state) {
    		if (typeof(state) === 'boolean')
    			this.state = state === false ? 0 : 1;
    		else
    			this.state = 1 ^ this.state;
    
    		if (active !== this) {
    			if (active)
    				active.toggle(false);
    			active = this;
    		}
    
    		if (this.state === 0)
    			this.dropmenu.setAttribute('data-hidden', 'true');
    		else
    			this.dropmenu.removeAttribute('data-hidden');
    
    	};
    
    	DropDown.prototype.updateValue = function updateValue(e) {
    
    		if (Date.now() - this.time < 500)
    			return;
    
    		if (e.target.className !== "ui-dropdown-list") {
    			this.setNodeValue(e.target);
    			this.toggle(false);
    		}
    
    		this.time = Date.now();
    	};
    
    	DropDown.prototype.setNodeValue = function setNodeValue(node, send_notify) {
    		this.value['name'] = node.textContent;
    		this.value['value'] = node.getAttribute('data-value');
    
    		this.select.textContent = node.textContent;
    		this.select.setAttribute('data-value', this.value['value']);
    
    		if (send_notify !== false)
    			notify.call(this);
    	};
    
    	var clickOut = function clickOut(e) {
    		if (active.state === 0 ||
    			e.target === active.dropmenu ||
    			e.target === active.select)
    			return;
    
    		active.toggle(false);
    	};
    
    	var createDropDown = function createDropDown(topic, options) {
    
    		var dropdown = document.createElement('div');
    		dropdown.setAttribute('data-topic', topic);
    		dropdown.className = 'ui-dropdown';
    
    		for (var i in options) {
    			var x = document.createElement('div');
    			x.setAttribute('data-value', i);
    			x.textContent = options[i];
    			dropdown.appendChild(x);
    		}
    
    		new DropDown(dropdown);
    
    		return dropdown;
    	};
    
    	var setValue = function setValue(topic, index, send_notify) {
    		if (dropdowns[topic] === undefined ||
    			index >= dropdowns[topic].dropmenu.children.length)
    			return;
    
    		dropdowns[topic].setNodeValue(dropdowns[topic].dropmenu.children[index], send_notify);
    	};
    
    	var subscribe = function subscribe(topic, callback) {
    		if (subscribers[topic] === undefined)
    			subscribers[topic] = [];
    		subscribers[topic].push(callback);
    	};
    
    	var unsubscribe = function unsubscribe(topic, callback) {
    		var index = subscribers[topic].indexOf(callback);
    		subscribers[topic].splice(index, 1);
    	};
    
    	var notify = function notify() {
    		if (subscribers[this.topic] === undefined)
    			return;
    
    		for (var i in subscribers[this.topic]) {
    			subscribers[this.topic][i](this.value);
    		}
    	};
    
    	var init = function init() {
    		var elem, size;
    
    		elem = document.querySelectorAll('.ui-dropdown');
    		size = elem.length;
    		for (var i = 0; i < size; i++)
    			new DropDown(elem[i]);
    
    	};
    
    	return {
    		init : init,
    		setValue : setValue,
    		subscribe : subscribe,
    		unsubscribe : unsubscribe,
    		createDropDown : createDropDown
    	};
    
    })();
    
    /**
     * UI-SlidersManager
     */
    
    var InputSliderManager = (function InputSliderManager() {
    	'use strict';
    
    	var subscribers = {};
    	var sliders = [];
    
    	var InputComponent = function InputComponent(obj) {
    		var input = document.createElement('input');
    		input.setAttribute('type', 'text');
    		input.style.width = 50 + obj.precision * 10 + 'px';
    
    		input.addEventListener('click', function(e) {
    			this.select();
    		});
    
    		input.addEventListener('change', function(e) {
    			var value = parseFloat(e.target.value);
    
    			if (isNaN(value) === true)
    				setValue(obj.topic, obj.value);
    			else
    				setValue(obj.topic, value);
    		});
    
    		return input;
    	};
    
    	var SliderComponent = function SliderComponent(obj, sign) {
    		var slider = document.createElement('div');
    		var startX = null;
    		var start_value = 0;
    
    		slider.addEventListener("click", function(e) {
    			document.removeEventListener("mousemove", sliderMotion);
    			setValue(obj.topic, obj.value + obj.step * sign);
    		});
    
    		slider.addEventListener("mousedown", function(e) {
    			startX = e.clientX;
    			start_value = obj.value;
    			document.body.style.cursor = "e-resize";
    
    			document.addEventListener("mouseup", slideEnd);
    			document.addEventListener("mousemove", sliderMotion);
    		});
    
    		var slideEnd = function slideEnd(e) {
    			document.removeEventListener("mousemove", sliderMotion);
    			document.body.style.cursor = "auto";
    			slider.style.cursor = "pointer";
    		};
    
    		var sliderMotion = function sliderMotion(e) {
    			slider.style.cursor = "e-resize";
    			var delta = (e.clientX - startX) / obj.sensivity | 0;
    			var value = delta * obj.step + start_value;
    			setValue(obj.topic, value);
    		};
    
    		return slider;
    	};
    
    	var InputSlider = function(node) {
    		var min		= parseFloat(node.getAttribute('data-min'));
    		var max		= parseFloat(node.getAttribute('data-max'));
    		var step	= parseFloat(node.getAttribute('data-step'));
    		var value	= parseFloat(node.getAttribute('data-value'));
    		var topic	= node.getAttribute('data-topic');
    		var unit	= node.getAttribute('data-unit');
    		var name 	= node.getAttribute('data-info');
    		var sensivity = node.getAttribute('data-sensivity') | 0;
    		var precision = node.getAttribute('data-precision') | 0;
    
    		this.min = isNaN(min) ? 0 : min;
    		this.max = isNaN(max) ? 100 : max;
    		this.precision = precision >= 0 ? precision : 0;
    		this.step = step < 0 || isNaN(step) ? 1 : step.toFixed(precision);
    		this.topic = topic;
    		this.node = node;
    		this.unit = unit === null ? '' : unit;
    		this.sensivity = sensivity > 0 ? sensivity : 5;
    		value = isNaN(value) ? this.min : value;
    
    		var input = new InputComponent(this);
    		var slider_left  = new SliderComponent(this, -1);
    		var slider_right = new SliderComponent(this,  1);
    
    		slider_left.className = 'ui-input-slider-left';
    		slider_right.className = 'ui-input-slider-right';
    
    		if (name) {
    			var info = document.createElement('span');
    			info.className = 'ui-input-slider-info';
    			info.textContent = name;
    			node.appendChild(info);
    		}
    
    		node.appendChild(slider_left);
    		node.appendChild(input);
    		node.appendChild(slider_right);
    
    		this.input = input;
    		sliders[topic] = this;
    		setValue(topic, value);
    	};
    
    	InputSlider.prototype.setInputValue = function setInputValue() {
    		this.input.value = this.value.toFixed(this.precision) + this.unit;
    	};
    
    	var setValue = function setValue(topic, value, send_notify) {
    		var slider = sliders[topic];
    		if (slider === undefined)
    			return;
    
    		value = parseFloat(value.toFixed(slider.precision));
    
    		if (value > slider.max) value = slider.max;
    		if (value < slider.min)	value = slider.min;
    
    		slider.value = value;
    		slider.node.setAttribute('data-value', value);
    
    		slider.setInputValue();
    
    		if (send_notify === false)
    			return;
    
    		notify.call(slider);
    	};
    
    	var setMax = function setMax(topic, value) {
    		var slider = sliders[topic];
    		if (slider === undefined)
    			return;
    
    		slider.max = value;
    		setValue(topic, slider.value);
    	};
    
    	var setMin = function setMin(topic, value) {
    		var slider = sliders[topic];
    		if (slider === undefined)
    			return;
    
    		slider.min = value;
    		setValue(topic, slider.value);
    	};
    
    	var setUnit = function setUnit(topic, unit, send_notify) {
    		var slider = sliders[topic];
    		if (slider === undefined)
    			return;
    
    		slider.unit = unit;
    		setValue(topic, slider.value, send_notify);
    	};
    
    	var setStep = function setStep(topic, value) {
    		var slider = sliders[topic];
    		if (slider === undefined)
    			return;
    
    		slider.step = parseFloat(value);
    		setValue(topic, slider.value);
    	};
    
    	var setPrecision = function setPrecision(topic, value) {
    		var slider = sliders[topic];
    		if (slider === undefined)
    			return;
    
    		value = value | 0;
    		slider.precision = value;
    
    		var step = parseFloat(slider.step.toFixed(value));
    		if (step === 0)
    			slider.step = 1 / Math.pow(10, value);
    
    		setValue(topic, slider.value);
    	};
    
    	var setSensivity = function setSensivity(topic, value) {
    		var slider = sliders[topic];
    		if (slider === undefined)
    			return;
    
    		value = value | 0;
    
    		slider.sensivity = value > 0 ? value : 5;
    	};
    
    	var getNode =  function getNode(topic) {
    		return sliders[topic].node;
    	};
    
    	var getPrecision =  function getPrecision(topic) {
    		return sliders[topic].precision;
    	};
    
    	var getStep =  function getStep(topic) {
    		return sliders[topic].step;
    	};
    
    	var subscribe = function subscribe(topic, callback) {
    		if (subscribers[topic] === undefined)
    			subscribers[topic] = [];
    		subscribers[topic].push(callback);
    	};
    
    	var unsubscribe = function unsubscribe(topic, callback) {
    		subscribers[topic].indexOf(callback);
    		subscribers[topic].splice(index, 1);
    	};
    
    	var notify = function notify() {
    		if (subscribers[this.topic] === undefined)
    			return;
    		for (var i = 0; i < subscribers[this.topic].length; i++)
    			subscribers[this.topic][i](this.value);
    	};
    
    	var createSlider = function createSlider(topic, label) {
    		var slider = document.createElement('div');
    		slider.className = 'ui-input-slider';
    		slider.setAttribute('data-topic', topic);
    
    		if (label !== undefined)
    			slider.setAttribute('data-info', label);
    
    		new InputSlider(slider);
    		return slider;
    	};
    
    	var init = function init() {
    		var elem = document.querySelectorAll('.ui-input-slider');
    		var size = elem.length;
    		for (var i = 0; i < size; i++)
    			new InputSlider(elem[i]);
    	};
    
    	return {
    		init : init,
    		setMax : setMax,
    		setMin : setMin,
    		setUnit : setUnit,
    		setStep : setStep,
    		getNode : getNode,
    		getStep : getStep,
    		setValue : setValue,
    		subscribe : subscribe,
    		unsubscribe : unsubscribe,
    		setPrecision : setPrecision,
    		setSensivity : setSensivity,
    		getPrecision : getPrecision,
    		createSlider : createSlider,
    	};
    
    })();
    
    /**
     * UI-SlidersManager
     */
    
    var SliderManager = (function SliderManager() {
    	'use strict';
    
    	var subscribers = {};
    	var sliders = [];
    
    	function trackMouse(elem, callback, startFunc, endFunc) {
    		startFunc = startFunc || function(e) {};
    		endFunc = endFunc || function(e) {};
    
    		elem.addEventListener('mousedown', function(e) {
    			e.preventDefault();
    			startFunc(e);
    
    			document.addEventListener('mousemove', callback);
    			document.addEventListener('mouseup', function up(e) {
    				document.removeEventListener('mousemove', callback);
    				document.removeEventListener('mouseup', up);
    				endFunc(e);
    			});
    		});
    
    		elem.addEventListener('click', function(e) {
    			e.stopPropagation();
    		});
    	}
    
    	var Slider = function(node) {
    		var topic = node.getAttribute('data-topic');
    		var info = node.getAttribute('data-info');
    		var unit = node.getAttribute('data-unit');
    		var min = node.getAttribute('data-min') | 0;
    		var max = node.getAttribute('data-max') | 0;
    		var step = node.getAttribute('data-step') | 0;
    		var value = node.getAttribute('data-value') | 0;
    		var snap = node.getAttribute('data-snap');
    
    		this.min = min;
    		this.max = max > 0 ? max : 100;
    		this.step = step === 0 ? 1 : step;
    		this.value = value <= max && value >= min ? value : (min + max) / 2 | 0;
    		this.snap = snap === "true" ? true : false;
    		this.topic = topic;
    		this.unit = unit;
    
    		var name = document.createElement('div');
    		var slider = document.createElement('div');
    		var pointer = document.createElement('div');
    
    		name.className = 'ui-slider-name';
    		name.textContent = info;
    
    		slider.className = 'ui-slider-slider';
    		pointer.className = 'ui-slider-pointer';
    
    		node.appendChild(name);
    		slider.appendChild(pointer);
    
    		this.pointer = pointer;
    		this.slider = slider;
    		this.node = node;
    
    		this.createSetButton('-', this.decrement.bind(this));
    		node.appendChild(slider);
    		this.createSetButton('+', this.increment.bind(this));
    		this.createInputField();
    
    		new trackMouse(slider, this.updateSlider.bind(this), this.startMove.bind(this));
    		slider.addEventListener('click', function(e) {
    			this.startMove();
    			this.updateSlider(e);
    		}.bind(this));
    
    		sliders[topic] = this;
    		this.setValue(this.value);
    	};
    
    	Slider.prototype.createSetButton = function createSetButton(type, callback) {
    		var button = document.createElement('div');
    		button.className = 'ui-slider-button';
    		button.textContent = type;
    		button.addEventListener("click", callback);
    		this.node.appendChild(button);
    	};
    
    	Slider.prototype.createInputField = function createInputField() {
    		var input = document.createElement('input');
    		input.setAttribute('type', 'text');
    		this.node.appendChild(input);
    
    		input.addEventListener('click', function(e) {
    			this.select();
    		});
    
    		input.addEventListener('change', function(e) {
    			this.setValue(e.target.value | 0);
    		}.bind(this));
    
    		subscribe(this.topic, function(value) {
    			input.value = value + this.unit;
    		}.bind(this));
    	};
    
    	Slider.prototype.startMove = function startMove(e) {
    		this.sliderX = this.slider.getBoundingClientRect().left;
    	};
    
    	Slider.prototype.updateSlider = function updateSlider(e) {
    		var width = this.slider.clientWidth;
    		var pos = e.clientX - this.sliderX;
    		var delta = this.max - this.min;
    
    		if (pos < 0) pos = 0;
    		if (pos > width) pos = width;
    
    		var value = pos * delta / width | 0;
    		var precision = value % this.step;
    		value = value - precision + this.min;
    
    		if (precision > this.step / 2)
    			value = value + this.step;
    
    		if (this.snap)
    			pos =  (value - this.min) * width / delta;
    
    		this.pointer.style.left = pos + "px";
    		this.value = value;
    		notify.call(this);
    	};
    
    	Slider.prototype.increment = function increment() {
    		this.setValue(this.value + this.step);
    	};
    
    	Slider.prototype.decrement = function decrement() {
    		this.setValue(this.value - this.step);
    	};
    
    	Slider.prototype.setValue = function setValue(value) {
    		if (value > this.max || value < this.min)
    			return;
    
    		var delta = this.max - this.min;
    		var width = this.slider.clientWidth;
    		var pos =  (value - this.min) * width / delta | 0;
    		this.value = value;
    		this.pointer.style.left = pos + "px";
    		notify.call(this);
    	};
    
    	var setValue = function setValue(topic, value) {
    		var slider = sliders[topic];
    		slider.setValue(value);
    	};
    
    	var subscribe = function subscribe(topic, callback) {
    		if (subscribers[topic] === undefined)
    			subscribers[topic] = [];
    		subscribers[topic].push(callback);
    	};
    
    	var unsubscribe = function unsubscribe(topic, callback) {
    		subscribers[topic].indexOf(callback);
    		subscribers[topic].splice(index, 1);
    	};
    
    	var notify = function notify() {
    		if (subscribers[this.topic] === undefined)
    			return;
    		for (var i = 0; i < subscribers[this.topic].length; i++)
    			subscribers[this.topic][i](this.value);
    	};
    
    	var init = function init() {
    		var elem = document.querySelectorAll('.ui-slider');
    		var size = elem.length;
    		for (var i = 0; i < size; i++)
    			new Slider(elem[i]);
    	};
    
    	return {
    		init : init,
    		setValue : setValue,
    		subscribe : subscribe,
    		unsubscribe : unsubscribe
    	};
    
    })();
    
    window.addEventListener("load", function() {
    	LinearGradientTool.init();
    });
    
    window.addEventListener("load", function() {
    	LinearGradientTool.init();
    });
    
    var LinearGradientTool = (function LinearGradientTool() {
    	'use strict';
    
    	var radian = 180 / Math.PI;
    	var inv_radian = Math.PI / 180;
    	var units = {'%': 1, 'px' : 0};
    
    	/*========== DOM Methods ==========*/
    
    	function getElemById(id) {
    		return document.getElementById(id);
    	}
    
    	function allowDropEvent(e) {
    		e.preventDefault();
    	}
    
    	function createClassElement(tag, className, parent) {
    		var elem = document.createElement(tag);
    		elem.className = className;
    		if (parent) parent.appendChild(elem);
    		return elem;
    	};
    
    	function trackMouse(elem, callback, startFunc, endFunc) {
    		startFunc = startFunc || function(e) {};
    		endFunc = endFunc || function(e) {};
    
    		elem.addEventListener('mousedown', function(e) {
    			e.preventDefault();
    			startFunc(e);
    
    			document.addEventListener('mousemove', callback);
    
    			document.addEventListener('mouseup', function up(e) {
    				document.removeEventListener('mousemove', callback);
    				document.removeEventListener('mouseup', up);
    				endFunc(e);
    			});
    		});
    
    		elem.addEventListener('click', function(e) {
    			e.stopPropagation();
    		});
    	}
    
    	var Color = UIColorPicker.Color;
    	var HSVColor = UIColorPicker.HSVColor;
    
    	var UIComponent = (function UIComponent() {
    
    		function makeResizable(elem, axis, callback, endFunc) {
    			var valueX = 0;
    			var valueY = 0;
    			var action = 0;
    			var callback = typeof callback === "function" ? callback : null;
    
    			endFunc = endFunc || function(e) {};
    
    			var resizeStart = function resizeStart(e) {
    				e.stopPropagation();
    				e.preventDefault();
    				if (e.button !== 0)
    					return;
    
    				valueX = e.clientX - elem.clientWidth;
    				valueY = e.clientY - elem.clientHeight;
    
    				document.body.setAttribute('data-resize', axis);
    				document.addEventListener('mousemove', mouseMove);
    				document.addEventListener('mouseup', resizeEnd);
    			};
    
    			var mouseMove = function mouseMove(e) {
    				if (action >= 0)
    					elem.style.width = e.clientX - valueX + 'px';
    				if (action <= 0)
    					elem.style.height = e.clientY - valueY + 'px';
    				if (callback)
    					callback();
    			};
    
    			var resizeEnd = function resizeEnd(e) {
    				if (e.button !== 0)
    					return;
    
    				document.body.removeAttribute('data-resize', axis);
    				document.removeEventListener('mousemove', mouseMove);
    				document.removeEventListener('mouseup', resizeEnd);
    				endFunc();
    			};
    
    			var handle = document.createElement('div');
    			handle.className = 'resize-handle';
    
    			if (axis === 'width') action = 1;
    			else if (axis === 'height') action = -1;
    			else axis = 'both';
    
    			handle.className = 'resize-handle';
    			handle.setAttribute('data-resize', axis);
    			handle.addEventListener('mousedown', resizeStart);
    			elem.appendChild(handle);
    		};
    
    		return {
    			makeResizable : makeResizable
    		};
    	})();
    
    
    	/**
    	 * Gradient Point
    	 */
    	var GradientPoint = function GradientPoint(Axis) {
    		var point = document.createElement('div');
    
    		point.className = 'gradient-point';
    
    		this.position = 0;
    		this.node = point;
    		this.Axis = Axis;
    		this.color = new HSVColor(0, 0, 100);
    		this.CSScolor = this.color.getColor();
    		this.CSSposition = 0;
    		this.PrevPoint = null;
    		this.NextPoint = null;
    
    		this.Axis.num_points++;
    
    		point.addEventListener('click', this.activate.bind(this));
    		trackMouse(point, this.updatePositionM.bind(this), this.startMove.bind(this),
    			this.endMove.bind(this));
    
    		Axis.line.appendChild(point);
    		return this;
    	};
    
    	GradientPoint.prototype.deletePoint = function deletePoint() {
    		this.Axis.line.removeChild(this.node);
    	};
    
    	GradientPoint.prototype.activate = function activate() {
    		if (this.Axis.state === false)
    			return;
    
    		this.Axis.setActivePoint(this);
    		this.node.setAttribute('data-active', 'true');
    		UIColorPicker.setColor('picker', this.color);
    		InputSliderManager.setValue('point-position', this.CSSposition);
    		if (this.Axis.num_points > 2)
    			AxesManager.setDeleteButtonState('active');
    	};
    
    	GradientPoint.prototype.deactivate = function deactivate() {
    		this.node.removeAttribute('data-active');
    	};
    
    	GradientPoint.prototype.startMove = function startMove(e) {
    		this.Axis.updateCenterPointPos();
    		this.node.setAttribute('data-active', 'true');
    		document.body.setAttribute('data-dragging', 'true');
    	};
    
    	GradientPoint.prototype.endMove = function endMove(e) {
    		this.node.removeAttribute('data-active', 'true');
    		document.body.removeAttribute('data-dragging');
    	};
    
    	GradientPoint.prototype.updatePositionM = function updatePositionM(e) {
    		var A = this.Axis;
    		var Qx = e.clientX - A.centerX;
    		var Qy = e.clientY - A.centerY;
    		this.position = (A.Px * Qx + A.Py * Qy) / A.Pmod + A.lsize;
    		this.updateCSSPosition();
    		this.Axis.reorderPoint(this);
    		this.Axis.updateGradient();
    		this.updateSlider();
    	};
    
    	GradientPoint.prototype.setPositionM = function setPositionM(posX, posY) {
    		var A = this.Axis;
    		var Qx = posX - A.centerX;
    		var Qy = posY - A.centerY;
    		this.position = (A.Px * Qx + A.Py * Qy) / A.Pmod + A.lsize;
    		this.updateCSSPosition();
    		this.Axis.reorderPoint(this);
    		this.Axis.updateGradient();
    		this.updateSlider();
    	};
    
    	GradientPoint.prototype.updateAbsolutePosition = function updateAbsolutePosition() {
    		if (this.Axis.unit ='%')
    			this.position = parseFloat(((this.CSSposition / 100) * (2 * this.Axis.lsize)).toFixed(1));;
    	};
    
    	GradientPoint.prototype.setPosition = function setPosition(pos) {
    		this.position = pos;
    		if (this.Axis.unit === '%')
    			this.position = parseFloat(((this.position / 100) * (2 * this.Axis.lsize)).toFixed(1));;
    		this.updateCSSPosition();
    		this.Axis.reorderPoint(this);
    		this.Axis.updateGradient();
    	};
    
    	GradientPoint.prototype.updateSlider = function updateSlider() {
    		if (this.Axis.ActivePoint === this && this.Axis.state === true)
    			InputSliderManager.setValue('point-position', this.CSSposition, false);
    	};
    
    	GradientPoint.prototype.updateColor = function updateColor(color) {
    		this.color.copy(color);
    		this.CSScolor = color.getColor();
    		this.updateCSSvalue();
    	};
    
    	GradientPoint.prototype.updateCSSPosition = function updateCSSPosition() {
    		this.CSSposition = this.position | 0;
    		if (this.Axis.unit === '%')
    			this.CSSposition = parseFloat((100 * this.position / (2 * this.Axis.lsize)).toFixed(1));
    
    		this.node.style.left = this.CSSposition + this.Axis.unit;
    		this.updateCSSvalue();
    	};
    
    	GradientPoint.prototype.updateCSSvalue = function updateCSSvalue() {
    		this.CSSvalue = this.CSScolor + ' ' + this.CSSposition + this.Axis.unit;
    	};
    
    	GradientPoint.prototype.insertBefore = function insertBefore(point) {
    		this.NextPoint = point;
    		this.PrevPoint = point.PrevPoint;
    		point.PrevPoint = this;
    		if (this.PrevPoint)
    			this.PrevPoint.NextPoint = this;
    	};
    
    	GradientPoint.prototype.insertAfter = function insertAfter(point) {
    		this.NextPoint = point.NextPoint;
    		this.PrevPoint = point;
    		point.NextPoint = this;
    		if (this.NextPoint)
    			this.NextPoint.PrevPoint = this;
    	};
    
    
    	/**
    	 * Gradient Axis
    	 */
    	function GradientAxis(container, id) {
    		var axis = createClassElement('div', 'gradient-axis', null);
    		var line = createClassElement('div', 'gradient-line', axis);
    		var rotate_point = createClassElement('div', 'rotate-point', axis);
    
    		axis.setAttribute('axisID', id);
    
    		var svg = this.createSVGArrow(id);
    		rotate_point.appendChild(svg);
    
    		this.id 	= id;
    		this.axis	= axis;
    		this.unit	= '%';
    		this.line	= line;
    		this.container = container;
    		this.lsize = container.clientWidth / 2;
    		this.FirstPoint = null;
    		this.ActivePoint = null;
    		this.gradient = '';
    		this.num_points = 0;
    
    		this.size = 0;
    		this.angle = 0;
    		this.state = false;
    		this.updateOnResize();
    
    		trackMouse(rotate_point, this.updateAxisAngle.bind(this),
    						this.startRotation.bind(this));
    
    		container.appendChild(axis);
    		line.addEventListener('click', this.placeGradientPoint.bind(this));
    	};
    
    
    	GradientAxis.prototype.createSVGArrow = function createSVGArrow(id) {
    		var xmlns = 'http://www.w3.org/2000/svg';
    		var svg = document.createElementNS(xmlns, 'svg');
    		var path = document.createElementNS(xmlns, 'path');
    
    		svg.setAttribute('class', 'gradient-arrow');
    
    		svg.setAttribute('width', '25');
    		svg.setAttribute('height', '25');
    
    		path.setAttribute('fill', '#CCC');
    		path.setAttribute('d', 'M 25,12.5 L 0,0 L 7.5,12.5 L 0,25');
    		svg.appendChild(path);
    
    		return svg;
    	};
    
    	GradientAxis.prototype.placeGradientPoint = function placeGradientPoint(e) {
    		this.updateCenterPointPos();
    		var point = new GradientPoint(this);
    		point.setPositionM(e.clientX, e.clientY);
    		point.activate();
    		this.attachPoint(point);
    		this.updateGradient();
    	};
    
    	GradientAxis.prototype.newGradientPoint = function newGradientPoint(pos) {
    		var point = new GradientPoint(this);
    		point.setPosition(pos);
    		point.activate();
    		this.attachPoint(point);
    		this.updateGradient();
    	};
    
    	GradientAxis.prototype.attachPoint = function attachPoint(point) {
    
    		// add the first point
    		if (this.FirstPoint === null) {
    			this.FirstPoint = point;
    			return;
    		}
    
    		// insert the point into the list
    		var p = this.FirstPoint;
    		while (p.NextPoint) {
    			if (point.CSSposition < p.CSSposition) {
    				point.insertBefore(p);
    				if (point.PrevPoint === null)
    					this.FirstPoint = point;
    				return;
    			}
    			p = p.NextPoint;
    		};
    
    		// test the last point
    		if (point.CSSposition < p.CSSposition)
    			point.insertBefore(p);
    		else
    			point.insertAfter(p);
    
    		if (point.PrevPoint === null)
    			this.FirstPoint = point;
    
    		return;
    	};
    
    	GradientAxis.prototype.detachPoint = function detachPoint(point) {
    		if (this.FirstPoint === point)
    			this.FirstPoint = point.NextPoint;
    		if (point.PrevPoint)
    			point.PrevPoint.NextPoint = point.NextPoint;
    		if (point.NextPoint)
    			point.NextPoint.PrevPoint = point.PrevPoint;
    		point.NextPoint = null;
    		point.PrevPoint = null;
    	};
    
    	GradientAxis.prototype.deleteActivePoint = function deleteActivePoint() {
    		// return if only 2 points left on the axis
    		if (this.num_points === 2)
    			return;
    
    		if (this.ActivePoint) {
    			this.ActivePoint.deletePoint();
    			this.detachPoint(this.ActivePoint);
    			this.updateGradient();
    			this.num_points--;
    		}
    	};
    
    	GradientAxis.prototype.reorderPoint = function reorderPoint(point) {
    		if (point.NextPoint && point.NextPoint.CSSposition > point.CSSposition &&
    			point.PrevPoint && point.PrevPoint.CSSposition < point.CSSposition)
    			return;
    		if (point.NextPoint === point.PrevPoint)
    			return;
    
    		this.detachPoint(point);
    		this.attachPoint(point);
    	};
    
    	GradientAxis.prototype.setActivePoint = function setActivePoint(point) {
    		if (this.ActivePoint)
    			this.ActivePoint.deactivate();
    		this.ActivePoint = point;
    	};
    
    	GradientAxis.prototype.activate = function activate() {
    		this.state = true;
    		this.axis.setAttribute('data-active', this.state);
    		InputSliderManager.setUnit('point-position', this.unit, false);
    		SliderManager.setValue('axis-rotation', this.angle | 0, false);
    		DropDownManager.setValue('axis-unit', units[this.unit], false);
    
    		if (this.ActivePoint)
    			this.ActivePoint.activate();
    	};
    
    	GradientAxis.prototype.deactivate = function deactivate() {
    		this.state = false;
    		this.axis.removeAttribute('data-active', this.state);
    		if (this.ActivePoint)
    			this.ActivePoint.deactivate();
    	};
    
    	GradientAxis.prototype.deleteAxis = function deleteAxis() {
    		this.deactivate();
    		this.container.removeChild(this.axis);
    	};
    
    	GradientAxis.prototype.updatePointColor = function updatePointColor(color) {
    		if (this.ActivePoint)
    			this.ActivePoint.updateColor(color);
    		this.updateGradient();
    	};
    
    	GradientAxis.prototype.updatePointPosition = function updatePointPosition(value) {
    		if (this.ActivePoint)
    			this.ActivePoint.setPosition(value);
    	};
    
    	GradientAxis.prototype.setUnit = function setUnit(unit) {
    		this.unit = unit;
    		this.updateAllPoints();
    		InputSliderManager.setUnit('point-position', unit, false);
    
    		if (this.ActivePoint)
    			this.ActivePoint.updateSlider();
    
    		this.updateGradient();
    	};
    
    	GradientAxis.prototype.updateAllPoints = function updateAllPoints() {
    		var p = this.FirstPoint;
    		while(p) {
    			p.updateCSSPosition();
    			p = p.NextPoint;
    		}
    	};
    
    	/* Axis events */
    	GradientAxis.prototype.startRotation = function startRotation(e) {
    		this.updateCenterPointPos();
    		this.updateAxisAngle(e);
    	};
    
    	GradientAxis.prototype.updateOnResize = function updateOnResize() {
    		this.updateContainer();
    		this.updateCenterPointPos();
    		this.setAxisAngle(this.angle);
    	};
    
    	GradientAxis.prototype.updateCenterPointPos = function updateCenterPointPos() {
    		var pos = this.container.getBoundingClientRect();
    		this.centerX = (pos.left + pos.right) / 2;
    		this.centerY = (pos.top + pos.bottom) / 2;
    	};
    
    	GradientAxis.prototype.updateContainer = function updateContainer() {
    		var W = this.container.clientWidth;
    		var H = this.container.clientHeight;
    
    		var max_size = Math.sqrt(W * W + H * H) + 50;
    
    		this.axis.style.width = max_size + 'px';
    		this.axis.style.left = (W - max_size)/2 - 1 + 'px';
    
    		this.mW = W / 2;
    		this.mH = H / 2;
    	};
    
    	GradientAxis.prototype.updateAxisAngle = function updateAxisAngle(e) {
    
    		var Px = e.clientX - this.centerX;
    		var Py = e.clientY - this.centerY;
    		var deg = -Math.atan2(Py, Px) * radian;
    		var Pmod = Math.sqrt(Px * Px + Py * Py);
    		this.lsize = (this.mW * Math.abs(Px) + this.mH * Math.abs(Py)) / Pmod;
    
    		if (this.state === true)
    			SliderManager.setValue('axis-rotation', deg | 0, false);
    
    		this.angle = deg;
    		this.updateCSS();
    		AxesManager.updateCSSGradient();
    
    		this.Px = Px;
    		this.Py = Py;
    		this.Pmod = Pmod;
    	};
    
    	GradientAxis.prototype.setAxisAngle = function setAxisAngle(deg) {
    		var rad = -deg * inv_radian;
    		var Px = Math.cos(rad);
    		var Py = Math.sin(rad);
    		this.lsize = this.mW * Math.abs(Px) + this.mH * Math.abs(Py);
    
    		this.angle = deg;
    		this.updateCSS();
    		AxesManager.updateCSSGradient();
    
    		this.Px = Px;
    		this.Py = Py;
    		this.Pmod = 1;
    	};
    
    	/* UI Methods - apply CSS */
    
    	GradientAxis.prototype.updateCSS = function updateCSS() {
    		this.line.style.width = 2 * this.lsize + 'px';
    		this.axis.style.transform = 'rotate('+ -this.angle +'deg)';
    		this.axis.style.webkitTransform = 'rotate('+ -this.angle +'deg)';
    	};
    
    	GradientAxis.prototype.updateGradient = function updateGradient() {
    		var p = this.FirstPoint;
    		if (p === null)
    			return;
    
    		this.gradient = p.CSSvalue;
    		p = p.NextPoint;
    		while(p) {
    			this.gradient += ', ' + p.CSSvalue;
    			p = p.NextPoint;
    		};
    		AxesManager.updateCSSGradient();
    	};
    
    	// this is the standard syntax
    	GradientAxis.prototype.getCSSGradient = function getCSSGradient() {
    		return 'linear-gradient('+ (-this.angle + 90 | 0) +'deg, ' + this.gradient + ')';
    	};
    
    	/**
    	 * AxesManager
    	 */
    	var AxesManager = (function AxesManager() {
    
    		var lg_axes = [];
    		var ActiveAxis = null;
    		var ActiveShortcut = null;
    		var axes_menu = null;
    		var gradient_container = null;
    		var add_axis_btn;
    		var delete_axis_btn;
    		var delete_point_btn;
    		var update_output;
    		var dragElem;
    
    		var createStartAxis = function createStartAxis(angle) {
    
    			if (ActiveAxis)
    				ActiveAxis.deactivate();
    
    			var axisID = getNextAxisID();
    			var axis = new GradientAxis(gradient_container, axisID);
    			var color = new HSVColor(210, 90, 90);
    			ActiveAxis = axis;
    
    			axis.activate();
    			axis.setAxisAngle(angle);
    			axis.newGradientPoint(10);
    			axis.updatePointColor(color);
    
    			color.setAlpha(0.5);
    			axis.newGradientPoint(50);
    			axis.updatePointColor(color);
    
    			color.setHue(275);
    			axis.newGradientPoint(50);
    			axis.updatePointColor(color);
    
    			color.setAlpha(1);
    			axis.newGradientPoint(90);
    			axis.updatePointColor(color);
    
    			UIColorPicker.setColor('picker', color);
    			lg_axes.push(axis);
    
    			axis.Shortcut = createAxisShortcut(axisID);
    			axis.activate();
    		};
    
    		var createAxis = function createAxis(angle) {
    
    			if (ActiveAxis)
    				ActiveAxis.deactivate();
    
    			var axisID = getNextAxisID();
    			var axis = new GradientAxis(gradient_container, axisID);
    			var color = new HSVColor(0, 0, 50);
    			ActiveAxis = axis;
    
    			axis.activate();
    			axis.setAxisAngle(angle);
    			axis.newGradientPoint(10);
    			axis.updatePointColor(color);
    
    			color.setValue(90);
    			axis.newGradientPoint(90);
    			axis.updatePointColor(color);
    
    			UIColorPicker.setColor('picker', color);
    			lg_axes.push(axis);
    
    			axis.Shortcut = createAxisShortcut(axisID);
    			axis.activate();
    		};
    
    		var createAxisShortcut = function createAxisShortcut(axisID) {
    			var axis = createClassElement('div', 'axis', axes_menu);
    
    			axis.setAttribute('axisID', axisID);
    			axis.setAttribute('draggable', 'true');
    			axis.style.left = (lg_axes.length - 1) * 60 + 'px';
    
    			axis.addEventListener('click', function() {
    				activateAxisShortcut(axis);
    				var axisID = this.getAttribute('axisID') | 0;
    				activateAxis(axisID);
    			});
    
    			axis.addEventListener('dragstart', function (e) {
    				dragElem = this;
    				e.dataTransfer.setData('axisID', this.getAttribute('axisID'));
    			});
    			axis.addEventListener('dragover', allowDropEvent);
    			axis.addEventListener('drop', function swap(e) {
    				if (dragElem === this)
    					return;
    
    				var from = getOrderID(e.dataTransfer.getData('axisID'));
    				var to = getOrderID(this.getAttribute('axisID'));
    
    				var swap = lg_axes[from];
    				lg_axes[from] = lg_axes[to];
    				lg_axes[to] = swap;
    
    				var left = dragElem.offsetLeft;
    				dragElem.style.left = this.offsetLeft + 'px';
    				this.style.left = left + 'px';
    
    				updateCSSGradient();
    			});
    
    			activateAxisShortcut(axis);
    			return axis;
    		};
    
    		var activateAxisShortcut = function activateAxisShortcut(node) {
    			if (ActiveShortcut)
    				ActiveShortcut.removeAttribute('data-state');
    			node.setAttribute('data-state', 'active');
    			ActiveShortcut = node;
    		};
    
    		var getNextAxisID = function getNextAxisID() {
    			var ids = [];
    			var idx = 0;
    			var len = lg_axes.length;
    
    			for (var i=0; i<len; !="=" &&="" (activeaxis="" (axis="==" (ids[idx]="" (idx="" (lg_axes.length="" (lg_axes[i].id="=" (var="" <="" activateaxis="function" activateaxis(axisid)="" activeaxis="" activeaxis.activate();="" activeaxis.deactivate();="" axis="lg_axes[getOrderID(axisID)];" axis)="" axisid)="" for="" getorderid="function" getorderid(axisid)="" i="0;" i++)="" i;="" i<len;="" ids[lg_axes[i].id]="true;" idx++;="" idx;="" if="" len="lg_axes.length;" lg_axes.length)="" null)="" return="" return;="" true)="" var="" while="" {="" }="" };=""> 1)
    				delete_axis_btn.removeAttribute('data-state');
    		};
    
    		/* Axis functions */
    
    		var updateAxisRotation = function updateAxisRotation(value) {
    			ActiveAxis.setAxisAngle(value);
    		};
    
    		var setAxisUnit = function setAxisUnit(obj) {
    			ActiveAxis.setUnit(obj.value);
    		};
    
    		var setAddAxisButton = function setAddAxisButton() {
    			add_axis_btn = getElemById('add-axis');
    			add_axis_btn.addEventListener('click', function() {
    				if (lg_axes.length === 4)
    					return;
    
    				createAxis(0);
    
    				if (lg_axes.length > 1)
    					delete_axis_btn.removeAttribute('data-state');
    				if (lg_axes.length === 4)
    					this.setAttribute('data-state', 'disabled');
    			});
    		};
    
    		var setDeleteAxisButton = function setDeleteAxisButton() {
    			delete_axis_btn = getElemById('delete-axis');
    			delete_axis_btn.addEventListener('click', function () {
    				if (this.hasAttribute('data-state'))
    					return;
    				if (lg_axes.length === 1)
    					return;
    
    				axes_menu.removeChild(ActiveAxis.Shortcut);
    				ActiveAxis.deleteAxis();
    				lg_axes.splice(getOrderID(ActiveAxis.id), 1);
    
    				ActiveAxis = null;
    				updateCSSGradient();
    
    				var len = lg_axes.length;
    				for (var i=0; i<len; '="" '');="" ');="" ';';="" 'both',="" 'disabled')="" 'disabled');="" 'px';="" ()="" (delete_point_btn)="" (lg_axes.length="" (this.getattribute('data-state')="==" (update_output)="" *="" **="" +="" ++i)="" 4)="" 500);="" :="" <="" activeaxis.deleteactivepoint();="" activeaxis.updatepointcolor(color);="" activeaxis.updatepointposition(color);="" add_axis_btn.removeattribute('data-state');="" axes_menu="getElemById('gradient-axes');" axesmanager.init();="" box="" button="getElemById('canvas-bg');" button.addeventlistener('click',="" code="prefix" container="" container.setattribute('data-alpha',="" container;="" createstartaxis(-18);="" createstartaxis(18);="" delete_point_btn="getElemById('delete-point');" delete_point_btn.addeventlistener('click',="" delete_point_btn.setattribute('data-state',="" dropdownmanager.init();="" dropdownmanager.subscribe('axis-unit',="" for(var="" function="" function()="" functions="" general="" gradient="[];" gradient.join(',\n="" gradient.push(lg_axes[i].getcssgradient());="" gradient_container="getElemById('gradient-container');" gradient_container.style.background="gradient.join('," i="" i++)="" if="" init="function" init()="" init,="" inputslidermanager.init();="" inputslidermanager.subscribe('point-position',="" k="0;" len="lg_axes.length;" len;="" lg_axes[i].shortcut.style.left="60" lg_axes[i].updateabsoluteposition();="" lg_axes[i].updateonresize();="" methods="" output="getElemById('output');" output.children[index].children[1].textcontent="code;" output.children[index].style.height="output.children[index].children[1].scrollHeight" output;="" point="" pre="" prefix)="" resizecontainer="function" resizecontainer()="" resizecontainer);="" resizecontainer,="" resizeend="function" resizeend()="" resizeend);="" return="" return;="" setaddaxisbutton();="" setaxisunit);="" setdeleteaxisbutton();="" setdeletebuttonstate="function" setdeletebuttonstate('disabled');="" setdeletebuttonstate(state)="" setdeletepointbutton="function" setdeletepointbutton()="" setdeletepointbutton();="" settogglealphabackground="function" settogglealphabackground()="" settogglealphabackground();="" slidermanager.init();="" slidermanager.subscribe('axis-rotation',="" state="true;" state);="" this.setattribute('data-alpha',="" this.setattribute('data-state',="" tool="" tool()="" tool.init();="" tool.updateoutputcsscode(gradient);="" uicolorpicker.init();="" uicolorpicker.subscribe('picker',="" uicomponent.makeresizable(gradient_container,="" update_output="setTimeout(" updateaxisrotation);="" updatecssgradient="function" updatecssgradient();="" updatecssgradient,="" updateoutputcsscode="function" updateoutputcsscode(gradient)="" updateoutputcsscode:="" updateoutputelem="function" updateoutputelem(0,="" updateoutputelem(index,="" updatepointcolor="function" updatepointcolor(color)="" updatepointcolor);="" updatepointposition="function" updatepointposition(color)="" updatepointposition);="" var="" window.addeventlistener('resize',="" window.cleartimeout(update_output);="" {="" }="" })();="" });="" },="" };=""></len;></len;>

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    This tool can be used to create custom CSS3 linear-gradient backgrounds.

    Document Tags and Contributors

    Tags: 
    Contributors to this page: gabriel_ivanica, teoli
    Last updated by: gabriel_ivanica,