color.js
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/**
* @package Regular Labs Library
* @version 18.2.10140
*
* @author Peter van Westen <info@regularlabs.com>
* @link http://www.regularlabs.com
* @copyright Copyright © 2018 Regular Labs All Rights Reserved
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
*/
/**
* BASED ON:
* jQuery MiniColors: A tiny color picker built on jQuery
* Copyright Cory LaViska for A Beautiful Site, LLC. (http://www.abeautifulsite.net/)
* Dual-licensed under the MIT and GPL Version 2 licenses
*
*/
if (jQuery) (function($) {
$(document).ready(function() {
$('.rl_color').minicolors();
});
// Yay, MiniColors!
$.minicolors = {
// Default settings
defaultSettings: {
animationSpeed : 100,
animationEasing: 'swing',
change : null,
changeDelay : 0,
control : 'hue',
defaultValue : '',
hide : null,
hideSpeed : 100,
inline : false,
letterCase : 'lowercase',
opacity : false,
position : 'default',
show : null,
showSpeed : 100,
swatchPosition : 'left',
textfield : true,
theme : 'default'
}
};
// Public methods
$.extend($.fn, {
minicolors: function(method, data) {
switch (method) {
// Destroy the control
case 'destroy':
$(this).each(function() {
destroy($(this));
});
return $(this);
// Get/set opacity
case 'opacity':
if (data === undefined) {
// Getter
return $(this).attr('data-opacity');
} else {
// Setter
$(this).each(function() {
refresh($(this).attr('data-opacity', data));
});
return $(this);
}
// Get an RGB(A) object based on the current color/opacity
case 'rgbObject':
return rgbObject($(this), method === 'rgbaObject');
// Get an RGB(A) string based on the current color/opacity
case 'rgbString':
case 'rgbaString':
return rgbString($(this), method === 'rgbaString');
// Get/set settings on the fly
case 'settings':
if (data === undefined) {
return $(this).data('minicolors-settings');
} else {
// Setter
$(this).each(function() {
var settings = $(this).data('minicolors-settings') || {};
destroy($(this));
$(this).minicolors($.extend(true, settings, data));
});
return $(this);
}
// Get/set the hex color value
case 'value':
if (data === undefined) {
// Getter
return $(this).val();
} else {
// Setter
$(this).each(function() {
refresh($(this).val(data));
});
return $(this);
}
// Initializes the control
case 'create':
default:
if (method !== 'create') data = method;
$(this).each(function() {
init($(this), data);
});
return $(this);
}
}
});
// Initialize input elements
function init(input, settings) {
var minicolors = $('<span class="minicolors" />'),
defaultSettings = $.minicolors.defaultSettings;
// Do nothing if already initialized
if (input.data('minicolors-initialized')) return;
// Handle settings
settings = $.extend(true, {}, defaultSettings, settings);
// The wrapper
minicolors
.addClass('minicolors-theme-' + settings.theme)
.addClass('minicolors-swatch-position-' + settings.swatchPosition)
.toggleClass('minicolors-swatch-left', settings.swatchPosition === 'left')
.toggleClass('minicolors-with-opacity', settings.opacity);
// Custom positioning
if (settings.position !== undefined) {
$.each(settings.position.split(' '), function() {
minicolors.addClass('minicolors-position-' + this);
});
}
// The input
input
.addClass('minicolors-input')
.data('minicolors-initialized', true)
.data('minicolors-settings', settings)
.prop('size', 7)
.prop('maxlength', 7)
.wrap(minicolors)
.after(
'<span class="minicolors-panel minicolors-slider-' + settings.control + '">' +
'<span class="minicolors-slider">' +
'<span class="minicolors-picker"></span>' +
'</span>' +
'<span class="minicolors-opacity-slider">' +
'<span class="minicolors-picker"></span>' +
'</span>' +
'<span class="minicolors-grid">' +
'<span class="minicolors-grid-inner"></span>' +
'<span class="minicolors-picker"><span></span></span>' +
'</span>' +
'</span>'
);
// Prevent text selection in IE
input.parent().find('.minicolors-panel').on('selectstart', function() {
return false;
}).end();
// Detect swatch position
if (settings.swatchPosition === 'left') {
// Left
input.before('<span class="minicolors-swatch"><span></span></span>');
} else {
// Right
input.after('<span class="minicolors-swatch"><span></span></span>');
}
// Disable textfield
if (!settings.textfield) input.addClass('minicolors-hidden');
// Inline controls
if (settings.inline) input.parent().addClass('minicolors-inline');
updateFromInput(input);
}
// Returns the input back to its original state
function destroy(input) {
var minicolors = input.parent();
// Revert the input element
input
.removeData('minicolors-initialized')
.removeData('minicolors-settings')
.removeProp('size')
.removeProp('maxlength')
.removeClass('minicolors-input');
// Remove the wrap and destroy whatever remains
minicolors.before(input).remove();
}
// Refresh the specified control
function refresh(input) {
updateFromInput(input);
}
// Shows the specified dropdown panel
function show(input) {
var minicolors = input.parent(),
panel = minicolors.find('.minicolors-panel'),
settings = input.data('minicolors-settings');
// Do nothing if uninitialized, disabled, or already open
if (!input.data('minicolors-initialized') || input.prop('disabled') || minicolors.hasClass('minicolors-focus')) return;
hide();
minicolors.addClass('minicolors-focus');
panel
.stop(true, true)
.fadeIn(settings.showSpeed, function() {
if (settings.show) settings.show.call(input);
});
}
// Hides all dropdown panels
function hide() {
$('.minicolors-input').each(function() {
var input = $(this),
settings = input.data('minicolors-settings'),
minicolors = input.parent();
// Don't hide inline controls
if (settings.inline) return;
minicolors.find('.minicolors-panel').fadeOut(settings.hideSpeed, function() {
if (minicolors.hasClass('minicolors-focus')) {
if (settings.hide) settings.hide.call(input);
}
minicolors.removeClass('minicolors-focus');
});
});
}
// Moves the selected picker
function move(target, event, animate) {
var input = target.parents('.minicolors').find('.minicolors-input'),
settings = input.data('minicolors-settings'),
picker = target.find('[class$=-picker]'),
offsetX = target.offset().left,
offsetY = target.offset().top,
x = Math.round(event.pageX - offsetX),
y = Math.round(event.pageY - offsetY),
duration = animate ? settings.animationSpeed : 0,
wx, wy, r, phi;
// Touch support
if (event.originalEvent.changedTouches) {
x = event.originalEvent.changedTouches[0].pageX - offsetX;
y = event.originalEvent.changedTouches[0].pageY - offsetY;
}
// Constrain picker to its container
if (x < 0) x = 0;
if (y < 0) y = 0;
if (x > target.width()) x = target.width();
if (y > target.height()) y = target.height();
// Constrain color wheel values to the wheel
if (target.parent().is('.minicolors-slider-wheel') && picker.parent().is('.minicolors-grid')) {
wx = 75 - x;
wy = 75 - y;
r = Math.sqrt(wx * wx + wy * wy);
phi = Math.atan2(wy, wx);
if (phi < 0) phi += Math.PI * 2;
if (r > 75) {
r = 75;
x = 75 - (75 * Math.cos(phi));
y = 75 - (75 * Math.sin(phi));
}
x = Math.round(x);
y = Math.round(y);
}
// Move the picker
if (target.is('.minicolors-grid')) {
picker
.stop(true)
.animate({
top : y + 'px',
left: x + 'px'
}, duration, settings.animationEasing, function() {
updateFromControl(input);
});
} else {
picker
.stop(true)
.animate({
top: y + 'px'
}, duration, settings.animationEasing, function() {
updateFromControl(input);
});
}
}
// Sets the input based on the color picker values
function updateFromControl(input) {
function getCoords(picker, container) {
var left, top;
if (!picker.length || !container) return null;
left = picker.offset().left;
top = picker.offset().top;
return {
x: left - container.offset().left + (picker.outerWidth() / 2),
y: top - container.offset().top + (picker.outerHeight() / 2)
};
}
var hue, saturation, brightness, opacity, rgb, hex, x, y, r, phi,
// Helpful references
minicolors = input.parent(),
settings = input.data('minicolors-settings'),
panel = minicolors.find('.minicolors-panel'),
swatch = minicolors.find('.minicolors-swatch'),
// Panel objects
grid = minicolors.find('.minicolors-grid'),
slider = minicolors.find('.minicolors-slider'),
opacitySlider = minicolors.find('.minicolors-opacity-slider'),
// Picker objects
gridPicker = grid.find('[class$=-picker]'),
sliderPicker = slider.find('[class$=-picker]'),
opacityPicker = opacitySlider.find('[class$=-picker]'),
// Picker positions
gridPos = getCoords(gridPicker, grid),
sliderPos = getCoords(sliderPicker, slider),
opacityPos = getCoords(opacityPicker, opacitySlider);
// Determine HSB values
switch (settings.control) {
case 'wheel':
// Calculate hue, saturation, and brightness
x = (grid.width() / 2) - gridPos.x;
y = (grid.height() / 2) - gridPos.y;
r = Math.sqrt(x * x + y * y);
phi = Math.atan2(y, x);
if (phi < 0) phi += Math.PI * 2;
if (r > 75) {
r = 75;
gridPos.x = 69 - (75 * Math.cos(phi));
gridPos.y = 69 - (75 * Math.sin(phi));
}
saturation = keepWithin(r / 0.75, 0, 100);
hue = keepWithin(phi * 180 / Math.PI, 0, 360);
brightness = keepWithin(100 - Math.floor(sliderPos.y * (100 / slider.height())), 0, 100);
hex = hsb2hex({
h: hue,
s: saturation,
b: brightness
});
// Update UI
slider.css('backgroundColor', hsb2hex({h: hue, s: saturation, b: 100}));
break;
case 'saturation':
// Calculate hue, saturation, and brightness
hue = keepWithin(parseInt(gridPos.x * (360 / grid.width())), 0, 360);
saturation = keepWithin(100 - Math.floor(sliderPos.y * (100 / slider.height())), 0, 100);
brightness = keepWithin(100 - Math.floor(gridPos.y * (100 / grid.height())), 0, 100);
hex = hsb2hex({
h: hue,
s: saturation,
b: brightness
});
// Update UI
slider.css('backgroundColor', hsb2hex({h: hue, s: 100, b: brightness}));
minicolors.find('.minicolors-grid-inner').css('opacity', saturation / 100);
break;
case 'brightness':
// Calculate hue, saturation, and brightness
hue = keepWithin(parseInt(gridPos.x * (360 / grid.width())), 0, 360);
saturation = keepWithin(100 - Math.floor(gridPos.y * (100 / grid.height())), 0, 100);
brightness = keepWithin(100 - Math.floor(sliderPos.y * (100 / slider.height())), 0, 100);
hex = hsb2hex({
h: hue,
s: saturation,
b: brightness
});
// Update UI
slider.css('backgroundColor', hsb2hex({h: hue, s: saturation, b: 100}));
minicolors.find('.minicolors-grid-inner').css('opacity', 1 - (brightness / 100));
break;
default:
// Calculate hue, saturation, and brightness
hue = keepWithin(360 - parseInt(sliderPos.y * (360 / slider.height())), 0, 360);
saturation = keepWithin(Math.floor(gridPos.x * (100 / grid.width())), 0, 100);
brightness = keepWithin(100 - Math.floor(gridPos.y * (100 / grid.height())), 0, 100);
hex = hsb2hex({
h: hue,
s: saturation,
b: brightness
});
// Update UI
grid.css('backgroundColor', hsb2hex({h: hue, s: 100, b: 100}));
break;
}
// Determine opacity
if (settings.opacity) {
opacity = parseFloat(1 - (opacityPos.y / opacitySlider.height())).toFixed(2);
} else {
opacity = 1;
}
// Adjust case
input.val(convertCase(hex, settings.letterCase));
if (settings.opacity) input.attr('data-opacity', opacity);
// Set swatch color
swatch.find('SPAN').css({
backgroundColor: hex,
opacity : opacity
});
// Handle change event
if (hex + opacity !== input.data('minicolors-lastChange')) {
// Remember last-changed value
input.data('minicolors-lastChange', hex + opacity);
// Fire change event
if (settings.change) {
if (settings.changeDelay) {
// Call after a delay
clearTimeout(input.data('minicolors-changeTimeout'));
input.data('minicolors-changeTimeout', setTimeout(function() {
settings.change.call(input, hex, opacity);
}, settings.changeDelay));
} else {
// Call immediately
settings.change.call(input, hex, opacity);
}
}
}
}
// Sets the color picker values from the input
function updateFromInput(input, preserveInputValue) {
var hex,
hsb,
opacity,
x, y, r, phi,
// Helpful references
minicolors = input.parent(),
settings = input.data('minicolors-settings'),
swatch = minicolors.find('.minicolors-swatch'),
// Panel objects
grid = minicolors.find('.minicolors-grid'),
slider = minicolors.find('.minicolors-slider'),
opacitySlider = minicolors.find('.minicolors-opacity-slider'),
// Picker objects
gridPicker = grid.find('[class$=-picker]'),
sliderPicker = slider.find('[class$=-picker]'),
opacityPicker = opacitySlider.find('[class$=-picker]');
// Determine hex/HSB values
hex = convertCase(parseHex(input.val(), true), settings.letterCase);
if (!hex) hex = convertCase(parseHex(settings.defaultValue, true));
hsb = hex2hsb(hex);
// Update input value
if (!preserveInputValue) input.val(hex);
// Determine opacity value
if (settings.opacity) {
opacity = input.attr('data-opacity') === '' ? 1 : keepWithin(parseFloat(input.attr('data-opacity')).toFixed(2), 0, 1);
input.attr('data-opacity', opacity);
swatch.find('SPAN').css('opacity', opacity);
// Set opacity picker position
y = keepWithin(opacitySlider.height() - (opacitySlider.height() * opacity), 0, opacitySlider.height());
opacityPicker.css('top', y + 'px');
}
// Update swatch
swatch.find('SPAN').css('backgroundColor', hex);
// Determine picker locations
switch (settings.control) {
case 'wheel':
// Set grid position
r = keepWithin(Math.ceil(hsb.s * 0.75), 0, grid.height() / 2);
phi = hsb.h * Math.PI / 180;
x = keepWithin(75 - Math.cos(phi) * r, 0, grid.width());
y = keepWithin(75 - Math.sin(phi) * r, 0, grid.height());
gridPicker.css({
top : y + 'px',
left: x + 'px'
});
// Set slider position
y = 150 - (hsb.b / (100 / grid.height()));
if (hex === '') y = 0;
sliderPicker.css('top', y + 'px');
// Update panel color
slider.css('backgroundColor', hsb2hex({h: hsb.h, s: hsb.s, b: 100}));
break;
case 'saturation':
// Set grid position
x = keepWithin((5 * hsb.h) / 12, 0, 150);
y = keepWithin(grid.height() - Math.ceil(hsb.b / (100 / grid.height())), 0, grid.height());
gridPicker.css({
top : y + 'px',
left: x + 'px'
});
// Set slider position
y = keepWithin(slider.height() - (hsb.s * (slider.height() / 100)), 0, slider.height());
sliderPicker.css('top', y + 'px');
// Update UI
slider.css('backgroundColor', hsb2hex({h: hsb.h, s: 100, b: hsb.b}));
minicolors.find('.minicolors-grid-inner').css('opacity', hsb.s / 100);
break;
case 'brightness':
// Set grid position
x = keepWithin((5 * hsb.h) / 12, 0, 150);
y = keepWithin(grid.height() - Math.ceil(hsb.s / (100 / grid.height())), 0, grid.height());
gridPicker.css({
top : y + 'px',
left: x + 'px'
});
// Set slider position
y = keepWithin(slider.height() - (hsb.b * (slider.height() / 100)), 0, slider.height());
sliderPicker.css('top', y + 'px');
// Update UI
slider.css('backgroundColor', hsb2hex({h: hsb.h, s: hsb.s, b: 100}));
minicolors.find('.minicolors-grid-inner').css('opacity', 1 - (hsb.b / 100));
break;
default:
// Set grid position
x = keepWithin(Math.ceil(hsb.s / (100 / grid.width())), 0, grid.width());
y = keepWithin(grid.height() - Math.ceil(hsb.b / (100 / grid.height())), 0, grid.height());
gridPicker.css({
top : y + 'px',
left: x + 'px'
});
// Set slider position
y = keepWithin(slider.height() - (hsb.h / (360 / slider.height())), 0, slider.height());
sliderPicker.css('top', y + 'px');
// Update panel color
grid.css('backgroundColor', hsb2hex({h: hsb.h, s: 100, b: 100}));
break;
}
}
// Generates an RGB(A) object based on the input's value
function rgbObject(input) {
var hex = parseHex($(input).val(), true),
rgb = hex2rgb(hex),
opacity = $(input).attr('data-opacity');
if (!rgb) return null;
if (opacity !== undefined) $.extend(rgb, {a: parseFloat(opacity)});
return rgb;
}
// Genearates an RGB(A) string based on the input's value
function rgbString(input, alpha) {
var hex = parseHex($(input).val(), true),
rgb = hex2rgb(hex),
opacity = $(input).attr('data-opacity');
if (!rgb) return null;
if (opacity === undefined) opacity = 1;
if (alpha) {
return 'rgba(' + rgb.r + ', ' + rgb.g + ', ' + rgb.b + ', ' + parseFloat(opacity) + ')';
} else {
return 'rgb(' + rgb.r + ', ' + rgb.g + ', ' + rgb.b + ')';
}
}
// Converts to the letter case specified in settings
function convertCase(string, letterCase) {
return letterCase === 'uppercase' ? string.toUpperCase() : string.toLowerCase();
}
// Parses a string and returns a valid hex string when possible
function parseHex(string, expand) {
string = string.replace(/[^A-F0-9]/ig, '');
if (string.length !== 3 && string.length !== 6) return '';
if (string.length === 3 && expand) {
string = string[0] + string[0] + string[1] + string[1] + string[2] + string[2];
}
return '#' + string;
}
// Keeps value within min and max
function keepWithin(value, min, max) {
if (value < min) value = min;
if (value > max) value = max;
return value;
}
// Converts an HSB object to an RGB object
function hsb2rgb(hsb) {
var rgb = {};
var h = Math.round(hsb.h);
var s = Math.round(hsb.s * 255 / 100);
var v = Math.round(hsb.b * 255 / 100);
if (s === 0) {
rgb.r = rgb.g = rgb.b = v;
} else {
var t1 = v;
var t2 = (255 - s) * v / 255;
var t3 = (t1 - t2) * (h % 60) / 60;
if (h === 360) h = 0;
if (h < 60) {
rgb.r = t1;
rgb.b = t2;
rgb.g = t2 + t3;
}
else if (h < 120) {
rgb.g = t1;
rgb.b = t2;
rgb.r = t1 - t3;
}
else if (h < 180) {
rgb.g = t1;
rgb.r = t2;
rgb.b = t2 + t3;
}
else if (h < 240) {
rgb.b = t1;
rgb.r = t2;
rgb.g = t1 - t3;
}
else if (h < 300) {
rgb.b = t1;
rgb.g = t2;
rgb.r = t2 + t3;
}
else if (h < 360) {
rgb.r = t1;
rgb.g = t2;
rgb.b = t1 - t3;
}
else {
rgb.r = 0;
rgb.g = 0;
rgb.b = 0;
}
}
return {
r: Math.round(rgb.r),
g: Math.round(rgb.g),
b: Math.round(rgb.b)
};
}
// Converts an RGB object to a hex string
function rgb2hex(rgb) {
var hex = [
rgb.r.toString(16),
rgb.g.toString(16),
rgb.b.toString(16)
];
$.each(hex, function(nr, val) {
if (val.length === 1) hex[nr] = '0' + val;
});
return '#' + hex.join('');
}
// Converts an HSB object to a hex string
function hsb2hex(hsb) {
return rgb2hex(hsb2rgb(hsb));
}
// Converts a hex string to an HSB object
function hex2hsb(hex) {
var hsb = rgb2hsb(hex2rgb(hex));
if (hsb.s === 0) hsb.h = 360;
return hsb;
}
// Converts an RGB object to an HSB object
function rgb2hsb(rgb) {
var hsb = {h: 0, s: 0, b: 0};
var min = Math.min(rgb.r, rgb.g, rgb.b);
var max = Math.max(rgb.r, rgb.g, rgb.b);
var delta = max - min;
hsb.b = max;
hsb.s = max !== 0 ? 255 * delta / max : 0;
if (hsb.s !== 0) {
if (rgb.r === max) {
hsb.h = (rgb.g - rgb.b) / delta;
} else if (rgb.g === max) {
hsb.h = 2 + (rgb.b - rgb.r) / delta;
} else {
hsb.h = 4 + (rgb.r - rgb.g) / delta;
}
} else {
hsb.h = -1;
}
hsb.h *= 60;
if (hsb.h < 0) {
hsb.h += 360;
}
hsb.s *= 100 / 255;
hsb.b *= 100 / 255;
return hsb;
}
// Converts a hex string to an RGB object
function hex2rgb(hex) {
hex = parseInt(((hex.indexOf('#') > -1) ? hex.substring(1) : hex), 16);
return {
r: hex >> 16,
g: (hex & 0x00FF00) >> 8,
b: (hex & 0x0000FF)
};
}
// Handle events
$(document)
// Hide on clicks outside of the control
.on('mousedown.minicolors touchstart.minicolors', function(event) {
if (!$(event.target).parents().add(event.target).hasClass('minicolors')) {
hide();
}
})
// Start moving
.on('mousedown.minicolors touchstart.minicolors', '.minicolors-grid, .minicolors-slider, .minicolors-opacity-slider', function(event) {
var target = $(this);
event.preventDefault();
$(document).data('minicolors-target', target);
move(target, event, true);
})
// Move pickers
.on('mousemove.minicolors touchmove.minicolors', function(event) {
var target = $(document).data('minicolors-target');
if (target) move(target, event);
})
// Stop moving
.on('mouseup.minicolors touchend.minicolors', function() {
$(this).removeData('minicolors-target');
})
// Toggle panel when swatch is clicked
.on('mousedown.minicolors touchstart.minicolors', '.minicolors-swatch', function() {
var input = $(this).parent().find('.minicolors-input'),
minicolors = input.parent();
if (minicolors.hasClass('minicolors-focus')) {
hide(input);
} else {
show(input);
}
})
// Show on focus
.on('focus.minicolors', '.minicolors-input', function() {
var input = $(this);
if (!input.data('minicolors-initialized')) return;
show(input);
})
// Fix hex and hide on blur
.on('blur.minicolors', '.minicolors-input', function() {
var input = $(this),
settings = input.data('minicolors-settings');
if (!input.data('minicolors-initialized')) return;
// Parse Hex
input.val(parseHex(input.val(), true));
// Is it blank?
if (input.val() === '') input.val(parseHex(settings.defaultValue, true));
// Adjust case
input.val(convertCase(input.val(), settings.letterCase));
hide(input);
})
// Handle keypresses
.on('keydown.minicolors', '.minicolors-input', function(event) {
var input = $(this);
if (!input.data('minicolors-initialized')) return;
switch (event.keyCode) {
case 9: // tab
hide();
break;
case 27: // esc
hide();
input.blur();
break;
}
})
// Update on keyup
.on('keyup.minicolors', '.minicolors-input', function() {
var input = $(this);
if (!input.data('minicolors-initialized')) return;
updateFromInput(input, true);
})
// Update on paste
.on('paste.minicolors', '.minicolors-input', function() {
var input = $(this);
if (!input.data('minicolors-initialized')) return;
setTimeout(function() {
updateFromInput(input, true);
}, 1);
});
})(jQuery);