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/home/develito/www/media/regularlabs/js/color.js

/**
 * @package Regular Labs Library
 * @version 19.9.15966
 * 
 * @author Peter van Westen <info@regularlabs.com>
 * @link http://www.regularlabs.com
 * @copyright Copyright © 2019 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 = $(''),
			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(
				'' +
				'' +
				'' +
				'' +
				'' +
				'' +
				'' +
				'' +
				'' +
				'' +
				'' +
				''
			);

// 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('');
		} else {
			// Right
			input.after('');
		}

// 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);