// Spectrum: The No Hassle Colorpicker
// https://github.com/bgrins/spectrum
// Author: Brian Grinstead
// License: MIT
// Requires: jQuery, spectrum.css
(function (window, $, undefined) {
var defaultOpts = {
color: false,
flat: false,
showInput: false,
showButtons: true,
showInitial: false,
beforeShow: noop,
move: noop,
change: noop,
show: noop,
hide: noop,
localStorageKey: false,
showPalette: false,
showPaletteOnly: false,
showSelectionPalette: false,
addSelectionToPalette: true,
cancelText: "cancel",
chooseText: "choose",
preferredFormat: false,
maxSelectionSize: 7,
theme: 'sp-light',
palette: ['fff', '000'],
selectionPalette: []
},
spectrums = [],
IE = $.browser.msie,
replaceInput = [
"<div class='sp-replacer sp-cf'>",
"<div class='sp-preview'></div>",
"<div class='sp-dd'>▼</div>",
"</div>"
].join(''),
markup = (function () {
// IE does not support gradients with multiple stops, so we need to simulate
// that for the rainbow slider with 8 divs that each have a single gradient
var gradientFix = "";
if (IE) {
for (var i = 1; i <= 6; i++) {
gradientFix += "<div class='sp-" + i + "'></div>";
}
}
return [
"<div class='sp-container'>",
"<div class='sp-palette-container'>",
"<div class='sp-palette sp-thumb sp-cf'></div>",
"</div>",
"<div class='sp-picker-container'>",
"<div class='sp-top sp-cf'>",
"<div class='sp-fill'></div>",
"<div class='sp-top-inner'>",
"<div class='sp-color'>",
"<div class='sp-sat'>",
"<div class='sp-val'>",
"<div class='sp-dragger'></div>",
"</div>",
"</div>",
"</div>",
"<div class='sp-hue'>",
"<div class='sp-slider'></div>",
gradientFix,
"</div>",
"</div>",
"</div>",
"<div class='sp-input-container sp-cf'>",
"<input class='sp-input' type='text' spellcheck='false' />",
"</div>",
"<div class='sp-initial sp-thumb sp-cf'></div>",
"<div class='sp-button-container sp-cf'>",
"<a class='sp-cancel' href='#'></a>",
"<button class='sp-choose'></button>",
"</div>",
"</div>",
"</div>"
].join("");
})(),
paletteTemplate = function (p, color, className) {
var html = [];
for (var i = 0; i < p.length; i++) {
var tiny = tinycolor(p[i]);
var c = tiny.toHsl().l < .5 ? "sp-thumb-dark" : "sp-thumb-light";
c += (tinycolor.equals(color, p[i])) ? " sp-thumb-active" : "";
html.push('<span title="' + tiny.toHexString() + '" data-color="' + tiny.toHexString() + '" style="background-color:' + tiny.toRgbString() + ';" class="' + c + '"></span>');
}
return "<div class='sp-cf " + className + "'>" + html.join('') + "</div>";
};
function hideAll() {
for (var i = 0; i < spectrums.length; i++) {
if (spectrums[i]) {
spectrums[i].hide();
}
}
}
function instanceOptions(o, callbackContext) {
var opts = $.extend({}, defaultOpts, o);
opts.callbacks = {
'move': bind(opts.move, callbackContext),
'change': bind(opts.change, callbackContext),
'show': bind(opts.show, callbackContext),
'hide': bind(opts.hide, callbackContext),
'beforeShow': bind(opts.beforeShow, callbackContext)
};
return opts;
}
function spectrum(element, o) {
var opts = instanceOptions(o, element),
flat = opts.flat,
showPaletteOnly = opts.showPaletteOnly,
showPalette = opts.showPalette || showPaletteOnly,
showInitial = opts.showInitial && !flat,
showInput = opts.showInput,
showSelectionPalette = opts.showSelectionPalette,
addSelectionToPalette = opts.addSelectionToPalette,
localStorageKey = opts.localStorageKey,
theme = opts.theme,
callbacks = opts.callbacks,
resize = throttle(reflow, 10),
visible = false,
dragWidth = 0,
dragHeight = 0,
dragHelperHeight = 0,
slideHeight = 0,
slideWidth = 0,
slideHelperHeight = 0,
currentHue = 0,
currentSaturation = 0,
currentValue = 0,
palette = opts.palette.slice(0),
paletteArray = $.isArray(palette[0]) ? palette : [palette],
selectionPalette = opts.selectionPalette.slice(0),
draggingClass = "sp-dragging";
var doc = element.ownerDocument,
body = doc.body,
boundElement = $(element),
container = $(markup, doc).addClass(theme),
dragger = container.find(".sp-color"),
dragHelper = container.find(".sp-dragger"),
slider = container.find(".sp-hue"),
slideHelper = container.find(".sp-slider"),
textInput = container.find(".sp-input"),
paletteContainer = container.find(".sp-palette"),
initialColorContainer = container.find(".sp-initial"),
cancelButton = container.find(".sp-cancel"),
chooseButton = container.find(".sp-choose"),
isInput = boundElement.is("input"),
shouldReplace = isInput && !flat,
replacer = (shouldReplace) ? $(replaceInput).addClass(theme) : $([]),
offsetElement = (shouldReplace) ? replacer : boundElement,
previewElement = replacer.find(".sp-preview"),
initialColor = opts.color || (isInput && boundElement.val()),
colorOnShow = false,
preferredFormat = opts.preferredFormat,
currentPreferredFormat = false;
chooseButton.text(opts.chooseText);
cancelButton.text(opts.cancelText);
function initialize() {
if (IE) {
container.find("*:not(input)").attr("unselectable", "on");
}
container.toggleClass("sp-flat", flat);
container.toggleClass("sp-input-disabled", !showInput);
container.toggleClass("sp-buttons-disabled", !opts.showButtons || flat);
container.toggleClass("sp-palette-disabled", !showPalette);
container.toggleClass("sp-palette-only", showPaletteOnly);
container.toggleClass("sp-initial-disabled", !showInitial);
if (shouldReplace) {
boundElement.hide().after(replacer);
}
if (flat) {
boundElement.after(container).hide();
}
else {
$(body).append(container.hide());
}
if (localStorageKey && window.localStorage) {
try {
selectionPalette = window.localStorage[localStorageKey].split(",");
}
catch (e) {
}
}
offsetElement.bind("click.spectrum touchstart.spectrum", function (e) {
toggle();
e.stopPropagation();
if (!$(e.target).is("input")) {
e.preventDefault();
}
});
// Prevent clicks from bubbling up to document. This would cause it to be hidden.
container.click(stopPropagation);
// Handle user typed input
textInput.change(setFromTextInput);
textInput.bind("paste", function () {
setTimeout(setFromTextInput, 1);
});
textInput.keydown(function (e) { if (e.keyCode == 13) { setFromTextInput(); } });
cancelButton.bind("click touchstart", function (e) {
e.stopPropagation();
e.preventDefault();
cancel();
hide();
});
chooseButton.bind("click touchstart", function (e) {
e.stopPropagation();
e.preventDefault();
if (isValid()) {
updateOriginalInput();
hide();
}
});
draggable(slider, function (dragX, dragY) {
currentHue = (dragY / slideHeight);
move();
}, dragStart, dragStop);
draggable(dragger, function (dragX, dragY) {
currentSaturation = dragX / dragWidth;
currentValue = (dragHeight - dragY) / dragHeight;
move();
}, dragStart, dragStop);
if (!!initialColor) {
set(initialColor, true);
addColorToSelectionPalette(initialColor);
}
if (flat) {
show();
}
function palletElementClick(e) {
if (e.data && e.data.ignore) {
set($(this).data("color"), true);
}
else {
set($(this).data("color"));
hide();
}
return false;
}
var paletteEvent = $.browser.msie ? "mousedown.spectrum" : "click.spectrum touchstart.spectrum";
paletteContainer.delegate("span", paletteEvent, palletElementClick);
initialColorContainer.delegate("span::nth-child(1)", paletteEvent, { ignore: true }, palletElementClick);
}
function addColorToSelectionPalette(color) {
if (addSelectionToPalette) {
selectionPalette.push(tinycolor(color).toHexString());
if (localStorageKey && window.localStorage) {
window.localStorage[localStorageKey] = selectionPalette.join(",");
}
}
}
function getUniqueSelectionPalette() {
var unique = [];
var p = selectionPalette;
var paletteLookup = {};
if (showPalette) {
for (var i = 0; i < paletteArray.length; i++) {
for (var j = 0; j < paletteArray[i].length; j++) {
var hex = tinycolor(paletteArray[i][j]).toHexString();
paletteLookup[hex] = true;
}
}
for (var i = 0; i < p.length; i++) {
var color = tinycolor(p[i]);
var hex = color.toHexString();
if (!paletteLookup.hasOwnProperty(hex)) {
unique.push(p[i]);
paletteLookup[hex] = true;
}
}
}
return unique.reverse().slice(0, opts.maxSelectionSize);
}
function drawPalette() {
var currentColor = get();
var html = $.map(paletteArray, function (palette, i) {
return paletteTemplate(palette, currentColor, "sp-palette-row sp-palette-row-" + i);
});
if (selectionPalette) {
html.push(paletteTemplate(getUniqueSelectionPalette(), currentColor, "sp-palette-row sp-palette-row-selection"));
}
paletteContainer.html(html.join(""));
}
function drawInitial() {
if (showInitial) {
var initial = colorOnShow;
var current = get();
initialColorContainer.html(paletteTemplate([initial, current], current, "sp-palette-row-initial"));
}
}
function dragStart() {
if (dragHeight === 0 || dragWidth === 0 || slideHeight === 0) {
reflow();
}
container.addClass(draggingClass);
}
function dragStop() {
container.removeClass(draggingClass);
}
function setFromTextInput() {
var tiny = tinycolor(textInput.val());
if (tiny.ok) {
set(tiny, true);
}
else {
textInput.addClass("sp-validation-error");
}
}
function toggle() {
(visible) ? hide() : show();
}
function show() {
if (visible) { return; }
if (callbacks.beforeShow(get()) === false) return;
hideAll();
visible = true;
$(doc).bind("click touchstart", hide);
$(window).bind("resize", resize);
replacer.addClass("sp-active");
container.show();
reflow();
updateUI();
colorOnShow = get();
drawInitial();
callbacks.show(colorOnShow);
}
function cancel() {
hide();
}
function hide() {
if (!visible || flat) { return; }
visible = false;
$(doc).unbind("click touchstart", hide);
$(window).unbind("resize", resize);
replacer.removeClass("sp-active");
container.hide();
var colorHasChanged = !tinycolor.equals(get(), colorOnShow);
// Change hasn't been called yet, so call it now that the picker has closed
if (colorHasChanged) {
revert();
}
callbacks.hide(get());
}
function revert() {
set(colorOnShow, true, true);
}
function set(color, ignoreChange, ignoreFormatChange) {
if (tinycolor.equals(color, get())) {
return;
}
var newColor = tinycolor(color);
var newHsv = newColor.toHsv();
currentHue = newHsv.h;
currentSaturation = newHsv.s;
currentValue = newHsv.v;
updateUI();
if (!ignoreFormatChange) {
currentPreferredFormat = preferredFormat || newColor.format;
}
// set can be called from a default value, don't want to trigger a change in that case
if (!ignoreChange && !tinycolor.equals(color, colorOnShow)) {
updateOriginalInput();
}
}
function get() {
return tinycolor.fromRatio({ h: currentHue, s: currentSaturation, v: currentValue });
}
function isValid() {
return !textInput.hasClass("sp-validation-error");
}
function move() {
updateUI();
callbacks.move(get());
}
function updateUI() {
textInput.removeClass("sp-validation-error");
updateHelperLocations();
// Update dragger background color (gradients take care of saturation and value).
var flatColor = tinycolor({ h: currentHue, s: "1.0", v: "1.0" });
dragger.css("background-color", flatColor.toHexString());
var realColor = get(),
realHex = realColor.toHexString();
// Update the replaced elements background color (with actual selected color)
previewElement.css("background-color", realHex);
// Update the text entry input as it changes happen
if (showInput) {
textInput.val(realColor.toString(currentPreferredFormat));
}
if (showPalette) {
drawPalette();
}
drawInitial();
}
function updateHelperLocations() {
var h = currentHue;
var s = currentSaturation;
var v = currentValue;
// Where to show the little circle in that displays your current selected color
var dragX = s * dragWidth;
var dragY = dragHeight - (v * dragHeight);
dragX = Math.max(
-dragHelperHeight,
Math.min(dragWidth - dragHelperHeight, dragX - dragHelperHeight)
);
dragY = Math.max(
-dragHelperHeight,
Math.min(dragHeight - dragHelperHeight, dragY - dragHelperHeight)
);
dragHelper.css({
"top": dragY,
"left": dragX
});
// Where to show the bar that displays your current selected hue
var slideY = (currentHue) * slideHeight;
slideHelper.css({
"top": slideY - slideHelperHeight
});
}
function updateOriginalInput() {
var color = get();
if (isInput) {
boundElement.val(color.toHexString());
}
colorOnShow = color;
// Update the selection palette with the current color
addColorToSelectionPalette(color);
callbacks.change(color);
}
function reflow() {
dragWidth = dragger.width();
dragHeight = dragger.height();
dragHelperHeight = dragHelper.height();
slideWidth = slider.width();
slideHeight = slider.height();
slideHelperHelperHeight = slideHelper.height();
if (!flat) {
container.offset(getOffset(container, offsetElement));
}
updateHelperLocations();
}
function destroy() {
boundElement.show();
offsetElement.unbind("click.spectrum touchstart.spectrum");
container.remove();
replacer.remove();
spectrums[spect.id] = null;
}
initialize();
var spect = {
show: show,
hide: hide,
set: function (c) {
set(c, true);
},
get: get,
destroy: destroy
};
spect.id = spectrums.push(spect) - 1;
return spect;
}
/**
* checkOffset - get the offset below/above and left/right element depending on screen position
* Thanks https://github.com/jquery/jquery-ui/blob/master/ui/jquery.ui.datepicker.js
*/
function getOffset(picker, input) {
var extraY = 0;
var dpWidth = picker.outerWidth();
var dpHeight = picker.outerHeight();
var inputWidth = input.outerWidth();
var inputHeight = input.outerHeight();
var doc = picker[0].ownerDocument;
var docElem = doc.documentElement;
var viewWidth = docElem.clientWidth + $(doc).scrollLeft();
var viewHeight = docElem.clientHeight + $(doc).scrollTop();
var offset = input.offset();
offset.top += inputHeight;
offset.left -=
Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?
Math.abs(offset.left + dpWidth - viewWidth) : 0);
offset.top -=
Math.min(offset.top, ((offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ?
Math.abs(dpHeight + inputHeight - extraY) : extraY));
return offset;
}
/**
* noop - do nothing
*/
function noop() {
}
/**
* stopPropagation - makes the code only doing this a little easier to read in line
*/
function stopPropagation(e) {
e.stopPropagation();
}
/**
* Create a function bound to a given object
* Thanks to underscore.js
*/
function bind(func, obj) {
var slice = Array.prototype.slice;
var args = slice.call(arguments, 2);
return function () {
return func.apply(obj, args.concat(slice.call(arguments)));
}
}
/**
* Lightweight drag helper. Handles containment within the element, so that
* when dragging, the x is within [0,element.width] and y is within [0,element.height]
*/
function draggable(element, onmove, onstart, onstop) {
onmove = onmove || function () { };
onstart = onstart || function () { };
onstop = onstop || function () { };
var doc = element.ownerDocument || document;
var dragging = false;
var offset = {};
var maxHeight = 0;
var maxWidth = 0;
var IE = $.browser.msie;
var hasTouch = ('ontouchstart' in window);
var duringDragEvents = {};
duringDragEvents["selectstart"] = prevent;
duringDragEvents["dragstart"] = prevent;
duringDragEvents[(hasTouch ? "touchmove" : "mousemove")] = move;
duringDragEvents[(hasTouch ? "touchend" : "mouseup")] = stop;
function prevent(e) {
if (e.stopPropagation) {
e.stopPropagation();
}
if (e.preventDefault) {
e.preventDefault();
}
e.returnValue = false;
}
function move(e) {
if (dragging) {
// Mouseup happened outside of window
if (IE && !(document.documentMode >= 9) && !e.button) {
return stop();
}
var touches = e.originalEvent.touches;
var pageX = touches ? touches[0].pageX : e.pageX;
var pageY = touches ? touches[0].pageY : e.pageY;
var dragX = Math.max(0, Math.min(pageX - offset.left, maxWidth));
var dragY = Math.max(0, Math.min(pageY - offset.top, maxHeight));
if (hasTouch) {
// Stop scrolling in iOS
prevent(e);
}
onmove.apply(element, [dragX, dragY]);
}
}
function start(e) {
var rightclick = (e.which) ? (e.which == 3) : (e.button == 2);
var touches = e.originalEvent.touches;
if (!rightclick && !dragging) {
if (onstart.apply(element, arguments) !== false) {
dragging = true;
maxHeight = $(element).height();
maxWidth = $(element).width();
offset = $(element).offset();
$(doc).bind(duringDragEvents);
$(doc.body).addClass("sp-dragging");
if (!hasTouch) {
move(e);
}
else {
prevent(e);
}
}
}
}
function stop() {
if (dragging) {
$(doc).unbind(duringDragEvents);
$(doc.body).removeClass("sp-dragging");
onstop.apply(element, arguments);
}
dragging = false;
}
$(element).bind(hasTouch ? "touchstart" : "mousedown", start);
}
function throttle(func, wait, debounce) {
var timeout;
return function () {
var context = this, args = arguments;
var throttler = function () {
timeout = null;
func.apply(context, args);
};
if (debounce) clearTimeout(timeout);
if (debounce || !timeout) timeout = setTimeout(throttler, wait);
};
}
/**
* Define a jQuery plugin
*/
var dataID = "spectrum.id";
$.fn.spectrum = function (opts, extra) {
if (typeof opts == "string") {
if (opts == "get") {
return spectrums[this.eq(0).data(dataID)].get();
}
return this.each(function () {
var spect = spectrums[$(this).data(dataID)];
if (spect) {
if (opts == "show") { spect.show(); }
if (opts == "hide") { spect.hide(); }
if (opts == "set") { spect.set(extra); }
if (opts == "destroy") {
spect.destroy();
$(this).removeData(dataID);
}
}
});
}
// Initializing a new one
return this.spectrum("destroy").each(function () {
var spect = spectrum(this, opts);
$(this).data(dataID, spect.id);
});
};
$.fn.spectrum.load = true;
$.fn.spectrum.loadOpts = {};
$.fn.spectrum.draggable = draggable;
$(function () {
if ($.fn.spectrum.load) {
$("input[type=spectrum]").each(function () {
var existing = spectrums[$(this).data(dataID)];
if (!existing) {
$(this).spectrum($.fn.spectrum.loadOpts);
}
});
}
});
})(this, jQuery);
// TinyColor.js - <https://github.com/bgrins/TinyColor> - 2011 Brian Grinstead - v0.5
(function (window) {
var trimLeft = /^[\s,#]+/,
trimRight = /\s+$/,
tinyCounter = 0,
math = Math,
mathRound = math.round,
mathMin = math.min,
mathMax = math.max,
mathRandom = math.random,
parseFloat = window.parseFloat;
function tinycolor(color, opts) {
// If input is already a tinycolor, return itself
if (typeof color == "object" && color.hasOwnProperty("_tc_id")) {
return color;
}
var rgb = inputToRGB(color);
var r = rgb.r, g = rgb.g, b = rgb.b, a = parseFloat(rgb.a), format = rgb.format;
return {
ok: rgb.ok,
format: format,
_tc_id: tinyCounter++,
alpha: a,
toHsv: function () {
var hsv = rgbToHsv(r, g, b);
return { h: hsv.h, s: hsv.s, v: hsv.v, a: a };
},
toHsvString: function () {
var hsv = rgbToHsv(r, g, b);
var h = mathRound(hsv.h * 360), s = mathRound(hsv.s * 100), v = mathRound(hsv.v * 100);
return (a == 1) ?
"hsv(" + h + ", " + s + "%, " + v + "%)" :
"hsva(" + h + ", " + s + "%, " + v + "%, " + a + ")";
},
toHsl: function () {
var hsl = rgbToHsl(r, g, b);
return { h: hsl.h, s: hsl.s, l: hsl.l, a: a };
},
toHslString: function () {
var hsl = rgbToHsl(r, g, b);
var h = mathRound(hsl.h * 360), s = mathRound(hsl.s * 100), l = mathRound(hsl.l * 100);
return (a == 1) ?
"hsl(" + h + ", " + s + "%, " + l + "%)" :
"hsla(" + h + ", " + s + "%, " + l + "%, " + a + ")";
},
toHex: function () {
return rgbToHex(r, g, b);
},
toHexString: function (force6Char) {
return '#' + rgbToHex(r, g, b, force6Char);
},
toRgb: function () {
return { r: mathRound(r), g: mathRound(g), b: mathRound(b), a: a };
},
toRgbString: function () {
return (a == 1) ?
"rgb(" + mathRound(r) + ", " + mathRound(g) + ", " + mathRound(b) + ")" :
"rgba(" + mathRound(r) + ", " + mathRound(g) + ", " + mathRound(b) + ", " + a + ")";
},
toName: function () {
return hexNames[rgbToHex(r, g, b)] || false;
},
toFilter: function () {
var hex = rgbToHex(r, g, b);
var alphaHex = Math.round(parseFloat(a) * 255).toString(16);
return "progid:DXImageTransform.Microsoft.gradient(startColorstr=#" +
alphaHex + hex + ",endColorstr=#" + alphaHex + hex + ")";
},
toString: function (format) {
format = format || this.format;
var formattedString = false;
if (format === "rgb") {
formattedString = this.toRgbString();
}
if (format === "hex") {
formattedString = this.toHexString();
}
if (format === "name") {
formattedString = this.toName();
}
if (format === "hsl") {
formattedString = this.toHslString();
}
if (format === "hsv") {
formattedString = this.toHsvString();
}
return formattedString || this.toHexString();
}
};
}
// If input is an object, force 1 into "1.0" to handle ratios properly
// String input requires "1.0" as input, so 1 will be treated as 1
tinycolor.fromRatio = function(color) {
if (typeof color == "object") {
for (var i in color) {
if (color[i] === 1) {
color[i] = "1.0";
}
}
}
return tinycolor(color);
}
// Given a string or object, convert that input to RGB
// Possible string inputs:
//
// "red"
// "#f00" or "f00"
// "#ff0000" or "ff0000"
// "rgb 255 0 0" or "rgb (255, 0, 0)"
// "rgb 1.0 0 0" or "rgb (1, 0, 0)"
// "rgba (255, 0, 0, 1)" or "rgba 255, 0, 0, 1"
// "rgba (1.0, 0, 0, 1)" or "rgba 1.0, 0, 0, 1"
// "hsl(0, 100%, 50%)" or "hsl 0 100% 50%"
// "hsla(0, 100%, 50%, 1)" or "hsla 0 100% 50%, 1"
// "hsv(0, 100%, 100%)" or "hsv 0 100% 100%"
//
function inputToRGB(color) {
var rgb = { r: 0, g: 0, b: 0 };
var a = 1;
var ok = false;
var format = false;
if (typeof color == "string") {
color = stringInputToObject(color);
}
if (typeof color == "object") {
if (color.hasOwnProperty("r") && color.hasOwnProperty("g") && color.hasOwnProperty("b")) {
rgb = rgbToRgb(color.r, color.g, color.b);
ok = true;
format = "rgb";
}
else if (color.hasOwnProperty("h") && color.hasOwnProperty("s") && color.hasOwnProperty("v")) {
rgb = hsvToRgb(color.h, color.s, color.v);
ok = true;
format = "hsv";
}
else if (color.hasOwnProperty("h") && color.hasOwnProperty("s") && color.hasOwnProperty("l")) {
var rgb = hslToRgb(color.h, color.s, color.l);
ok = true;
format = "hsl";
}
if (color.hasOwnProperty("a")) {
a = color.a;
}
}
rgb.r = mathMin(255, mathMax(rgb.r, 0));
rgb.g = mathMin(255, mathMax(rgb.g, 0));
rgb.b = mathMin(255, mathMax(rgb.b, 0));
// Don't let the range of [0,255] come back in [0,1].
// Potentially lose a little bit of precision here, but will fix issues where
// .5 gets interpreted as half of the total, instead of half of 1.
// If it was supposed to be 128, this was already taken care of in the conversion function
if (rgb.r < 1) { rgb.r = mathRound(rgb.r); }
if (rgb.g < 1) { rgb.g = mathRound(rgb.g); }
if (rgb.b < 1) { rgb.b = mathRound(rgb.b); }
return {
ok: ok,
format: (color && color.format) || format,
r: rgb.r,
g: rgb.g,
b: rgb.b,
a: a
};
}
// Conversion Functions
// --------------------
// `rgbToHsl`, `rgbToHsv`, `hslToRgb`, `hsvToRgb` modified from:
// <http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript>
// `rgbToRgb`
// Handle bounds / percentage checking to conform to CSS color spec
// <http://www.w3.org/TR/css3-color/>
// *Assumes:* r, g, b in [0, 255] or [0, 1]
// *Returns:* { r, g, b } in [0, 255]
function rgbToRgb(r, g, b) {
return {
r: bound01(r, 255) * 255,
g: bound01(g, 255) * 255,
b: bound01(b, 255) * 255
};
}
// `rgbToHsl`
// Converts an RGB color value to HSL.
// *Assumes:* r, g, and b are contained in [0, 255] or [0, 1]
// *Returns:* { h, s, l } in [0,1]
function rgbToHsl(r, g, b) {
r = bound01(r, 255);
g = bound01(g, 255);
b = bound01(b, 255);
var max = mathMax(r, g, b), min = mathMin(r, g, b);
var h, s, l = (max + min) / 2;
if (max == min) {
h = s = 0; // achromatic
}
else {
var d = max - min;
s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
switch (max) {
case r: h = (g - b) / d + (g < b ? 6 : 0); break;
case g: h = (b - r) / d + 2; break;
case b: h = (r - g) / d + 4; break;
}
h /= 6;
}
return { h: h, s: s, l: l };
}
// `hslToRgb`
// Converts an HSL color value to RGB.
// *Assumes:* h is contained in [0, 1] or [0, 360] and s and l are contained [0, 1] or [0, 100]
// *Returns:* { r, g, b } in the set [0, 255]
function hslToRgb(h, s, l) {
var r, g, b;
h = bound01(h, 360);
s = bound01(s, 100);
l = bound01(l, 100);
function hue2rgb(p, q, t) {
if (t < 0) t += 1;
if (t > 1) t -= 1;
if (t < 1 / 6) return p + (q - p) * 6 * t;
if (t < 1 / 2) return q;
if (t < 2 / 3) return p + (q - p) * (2 / 3 - t) * 6;
return p;
}
if (s == 0) {
r = g = b = l; // achromatic
}
else {
var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
var p = 2 * l - q;
r = hue2rgb(p, q, h + 1 / 3);
g = hue2rgb(p, q, h);
b = hue2rgb(p, q, h - 1 / 3);
}
return { r: r * 255, g: g * 255, b: b * 255 };
}
// `rgbToHsv`
// Converts an RGB color value to HSV
// *Assumes:* r, g, and b are contained in the set [0, 255] or [0, 1]
// *Returns:* { h, s, v } in [0,1]
function rgbToHsv(r, g, b) {
r = bound01(r, 255);
g = bound01(g, 255);
b = bound01(b, 255);
var max = mathMax(r, g, b), min = mathMin(r, g, b);
var h, s, v = max;
var d = max - min;
s = max == 0 ? 0 : d / max;
if (max == min) {
h = 0; // achromatic
}
else {
switch (max) {
case r: h = (g - b) / d + (g < b ? 6 : 0); break;
case g: h = (b - r) / d + 2; break;
case b: h = (r - g) / d + 4; break;
}
h /= 6;
}
return { h: h, s: s, v: v };
}
// `hsvToRgb`
// Converts an HSV color value to RGB.
// *Assumes:* h is contained in [0, 1] or [0, 360] and s and v are contained in [0, 1] or [0, 100]
// *Returns:* { r, g, b } in the set [0, 255]
function hsvToRgb(h, s, v) {
var r, g, b;
h = bound01(h, 360) * 6;
s = bound01(s, 100);
v = bound01(v, 100);
var i = math.floor(h),
f = h - i,
p = v * (1 - s),
q = v * (1 - f * s),
t = v * (1 - (1 - f) * s),
mod = i % 6,
r = [v, q, p, p, t, v][mod],
g = [t, v, v, q, p, p][mod],
b = [p, p, t, v, v, q][mod];
return { r: r * 255, g: g * 255, b: b * 255 };
}
// `rgbToHex`
// Converts an RGB color to hex
// Assumes r, g, and b are contained in the set [0, 255]
// Returns a 3 or 6 character hex
function rgbToHex(r, g, b, force6Char) {
function pad(c) {
return c.length == 1 ? '0' + c : '' + c;
}
var hex = [
pad(mathRound(r).toString(16)),
pad(mathRound(g).toString(16)),
pad(mathRound(b).toString(16))
];
// Return a 3 character hex if possible
if (!force6Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1)) {
return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0);
}
return hex.join("");
}
// `equals`
// Can be called with any tinycolor input
tinycolor.equals = function (color1, color2) {
if (!color1 || !color2) { return false; }
return tinycolor(color1).toHex() == tinycolor(color2).toHex();
};
tinycolor.random = function () {
return tinycolor.fromRatio({
r: mathRandom(),
g: mathRandom(),
b: mathRandom()
});
};
// Modification Functions
// ----------------------
// Thanks to less.js for some of the basics here
// <https://github.com/cloudhead/less.js/blob/master/lib/less/functions.js>
tinycolor.desaturate = function (color, amount) {
var hsl = tinycolor(color).toHsl();
hsl.s -= ((amount || 10) / 100);
hsl.s = clamp01(hsl.s);
return tinycolor(hsl);
};
tinycolor.saturate = function (color, amount) {
var hsl = tinycolor(color).toHsl();
hsl.s += ((amount || 10) / 100);
hsl.s = clamp01(hsl.s);
return tinycolor(hsl);
};
tinycolor.greyscale = function (color) {
return tinycolor.desaturate(color, 100);
};
tinycolor.lighten = function (color, amount) {
var hsl = tinycolor(color).toHsl();
hsl.l += ((amount || 10) / 100);
hsl.l = clamp01(hsl.l);
return tinycolor(hsl);
};
tinycolor.darken = function (color, amount) {
var hsl = tinycolor(color).toHsl();
hsl.l -= ((amount || 10) / 100);
hsl.l = clamp01(hsl.l);
return tinycolor(hsl);
};
tinycolor.complement = function (color) {
var hsl = tinycolor(color).toHsl();
hsl.h = (hsl.h + .5) % 1;
return tinycolor(hsl);
};
// Combination Functions
// ---------------------
// Thanks to jQuery xColor for some of the ideas behind these
// <https://github.com/infusion/jQuery-xcolor/blob/master/jquery.xcolor.js>
tinycolor.triad = function (color) {
var hsl = tinycolor(color).toHsl();
var h = hsl.h * 360;
return [
tinycolor(color),
tinycolor({ h: (h + 120) % 360, s: hsl.s, l: hsl.l }),
tinycolor({ h: (h + 240) % 360, s: hsl.s, l: hsl.l })
];
};
tinycolor.tetrad = function (color) {
var hsl = tinycolor(color).toHsl();
var h = hsl.h * 360;
return [
tinycolor(color),
tinycolor({ h: (h + 90) % 360, s: hsl.s, l: hsl.l }),
tinycolor({ h: (h + 180) % 360, s: hsl.s, l: hsl.l }),
tinycolor({ h: (h + 270) % 360, s: hsl.s, l: hsl.l })
];
};
tinycolor.splitcomplement = function (color) {
var hsl = tinycolor(color).toHsl();
var h = hsl.h * 360;
return [
tinycolor(color),
tinycolor({ h: (h + 72) % 360, s: hsl.s, l: hsl.l }),
tinycolor({ h: (h + 216) % 360, s: hsl.s, l: hsl.l })
];
};
tinycolor.analogous = function (color, results, slices) {
results = results || 6;
slices = slices || 30;
var hsl = tinycolor(color).toHsl();
var part = 360 / slices
var ret = [tinycolor(color)];
hsl.h *= 360;
for (hsl.h = ((hsl.h - (part * results >> 1)) + 720) % 360; --results; ) {
hsl.h = (hsl.h + part) % 360;
ret.push(tinycolor(hsl));
}
return ret;
};
tinycolor.monochromatic = function (color, results) {
results = results || 6;
var hsv = tinycolor(color).toHsv();
var h = hsv.h, s = hsv.s, v = hsv.v;
var ret = [];
var modification = 1 / results;
while (results--) {
ret.push(tinycolor({ h: h, s: s, v: v }));
v = (v + modification) % 1;
}
return ret;
};
tinycolor.readable = function (color1, color2) {
var a = tinycolor(color1).toRgb(), b = tinycolor(color2).toRgb();
return (
(b.r - a.r) * (b.r - a.r) +
(b.g - a.g) * (b.g - a.g) +
(b.b - a.b) * (b.b - a.b)
) > 0x28A4;
};
// Big List of Colors
// ---------
// <http://www.w3.org/TR/css3-color/#svg-color>
var names = tinycolor.names = {
aliceblue: "f0f8ff",
antiquewhite: "faebd7",
aqua: "0ff",
aquamarine: "7fffd4",
azure: "f0ffff",
beige: "f5f5dc",
bisque: "ffe4c4",
black: "000",
blanchedalmond: "ffebcd",
blue: "00f",
blueviolet: "8a2be2",
brown: "a52a2a",
burlywood: "deb887",
burntsienna: "ea7e5d",
cadetblue: "5f9ea0",
chartreuse: "7fff00",
chocolate: "d2691e",
coral: "ff7f50",
cornflowerblue: "6495ed",
cornsilk: "fff8dc",
crimson: "dc143c",
cyan: "0ff",
darkblue: "00008b",
darkcyan: "008b8b",
darkgoldenrod: "b8860b",
darkgray: "a9a9a9",
darkgreen: "006400",
darkgrey: "a9a9a9",
darkkhaki: "bdb76b",
darkmagenta: "8b008b",
darkolivegreen: "556b2f",
darkorange: "ff8c00",
darkorchid: "9932cc",
darkred: "8b0000",
darksalmon: "e9967a",
darkseagreen: "8fbc8f",
darkslateblue: "483d8b",
darkslategray: "2f4f4f",
darkslategrey: "2f4f4f",
darkturquoise: "00ced1",
darkviolet: "9400d3",
deeppink: "ff1493",
deepskyblue: "00bfff",
dimgray: "696969",
dimgrey: "696969",
dodgerblue: "1e90ff",
firebrick: "b22222",
floralwhite: "fffaf0",
forestgreen: "228b22",
fuchsia: "f0f",
gainsboro: "dcdcdc",
ghostwhite: "f8f8ff",
gold: "ffd700",
goldenrod: "daa520",
gray: "808080",
green: "008000",
greenyellow: "adff2f",
grey: "808080",
honeydew: "f0fff0",
hotpink: "ff69b4",
indianred: "cd5c5c",
indigo: "4b0082",
ivory: "fffff0",
khaki: "f0e68c",
lavender: "e6e6fa",
lavenderblush: "fff0f5",
lawngreen: "7cfc00",
lemonchiffon: "fffacd",
lightblue: "add8e6",
lightcoral: "f08080",
lightcyan: "e0ffff",
lightgoldenrodyellow: "fafad2",
lightgray: "d3d3d3",
lightgreen: "90ee90",
lightgrey: "d3d3d3",
lightpink: "ffb6c1",
lightsalmon: "ffa07a",
lightseagreen: "20b2aa",
lightskyblue: "87cefa",
lightslategray: "789",
lightslategrey: "789",
lightsteelblue: "b0c4de",
lightyellow: "ffffe0",
lime: "0f0",
limegreen: "32cd32",
linen: "faf0e6",
magenta: "f0f",
maroon: "800000",
mediumaquamarine: "66cdaa",
mediumblue: "0000cd",
mediumorchid: "ba55d3",
mediumpurple: "9370db",
mediumseagreen: "3cb371",
mediumslateblue: "7b68ee",
mediumspringgreen: "00fa9a",
mediumturquoise: "48d1cc",
mediumvioletred: "c71585",
midnightblue: "191970",
mintcream: "f5fffa",
mistyrose: "ffe4e1",
moccasin: "ffe4b5",
navajowhite: "ffdead",
navy: "000080",
oldlace: "fdf5e6",
olive: "808000",
olivedrab: "6b8e23",
orange: "ffa500",
orangered: "ff4500",
orchid: "da70d6",
palegoldenrod: "eee8aa",
palegreen: "98fb98",
paleturquoise: "afeeee",
palevioletred: "db7093",
papayawhip: "ffefd5",
peachpuff: "ffdab9",
peru: "cd853f",
pink: "ffc0cb",
plum: "dda0dd",
powderblue: "b0e0e6",
purple: "800080",
red: "f00",
rosybrown: "bc8f8f",
royalblue: "4169e1",
saddlebrown: "8b4513",
salmon: "fa8072",
sandybrown: "f4a460",
seagreen: "2e8b57",
seashell: "fff5ee",
sienna: "a0522d",
silver: "c0c0c0",
skyblue: "87ceeb",
slateblue: "6a5acd",
slategray: "708090",
slategrey: "708090",
snow: "fffafa",
springgreen: "00ff7f",
steelblue: "4682b4",
tan: "d2b48c",
teal: "008080",
thistle: "d8bfd8",
tomato: "ff6347",
turquoise: "40e0d0",
violet: "ee82ee",
wheat: "f5deb3",
white: "fff",
whitesmoke: "f5f5f5",
yellow: "ff0",
yellowgreen: "9acd32"
};
// Make it easy to access colors via `hexNames[hex]`
var hexNames = tinycolor.hexNames = flip(names);
// Utilities
// ---------
// `{ 'name1': 'val1' }` becomes `{ 'val1': 'name1' }`
function flip(o) {
var flipped = {};
for (var i in o) {
if (o.hasOwnProperty(i)) {
flipped[o[i]] = i;
}
}
return flipped;
}
// Take input from [0, n] and return it as [0, 1]
function bound01(n, max) {
if (isOnePointZero(n)) { n = "100%"; }
var processPercent = isPercentage(n);
n = mathMin(max, mathMax(0, parseFloat(n)));
// Automatically convert percentage into number
if (processPercent) {
n = n * (max / 100);
}
// Handle floating point rounding errors
if ((math.abs(n - max) < 0.000001)) {
return 1;
}
else if (n >= 1) {
return (n % max) / parseFloat(max);
}
return n;
}
// Force a number between 0 and 1
function clamp01(val) {
return mathMin(1, mathMax(0, val));
}
// Parse an integer into hex
function parseHex(val) {
return parseInt(val, 16);
}
// Need to handle 1.0 as 100%, since once it is a number, there is no difference between it and 1
// <http://stackoverflow.com/questions/7422072/javascript-how-to-detect-number-as-a-decimal-including-1-0>
function isOnePointZero(n) {
return typeof n == "string" && n.indexOf('.') != -1 && parseFloat(n) === 1;
}
// Check to see if string passed in is a percentage
function isPercentage(n) {
return typeof n === "string" && n.indexOf('%') != -1;
}
var matchers = (function () {
// <http://www.w3.org/TR/css3-values/#integers>
var CSS_INTEGER = "[-\\+]?\\d+%?";
// <http://www.w3.org/TR/css3-values/#number-value>
var CSS_NUMBER = "[-\\+]?\\d*\\.\\d+%?";
// Allow positive/negative integer/number. Don't capture the either/or, just the entire outcome.
var CSS_UNIT = "(?:" + CSS_NUMBER + ")|(?:" + CSS_INTEGER + ")";
// Actual matching.
// Parentheses and commas are optional, but not required.
// Whitespace can take the place of commas or opening paren
var PERMISSIVE_MATCH3 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?";
var PERMISSIVE_MATCH4 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?";
return {
rgb: new RegExp("rgb" + PERMISSIVE_MATCH3),
rgba: new RegExp("rgba" + PERMISSIVE_MATCH4),
hsl: new RegExp("hsl" + PERMISSIVE_MATCH3),
hsla: new RegExp("hsla" + PERMISSIVE_MATCH4),
hsv: new RegExp("hsv" + PERMISSIVE_MATCH3),
hex3: /^([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
hex6: /^([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/
};
})();
// `stringInputToObject`
// Permissive string parsing. Take in a number of formats, and output an object
// based on detected format. Returns `{ r, g, b }` or `{ h, s, l }` or `{ h, s, v}`
function stringInputToObject(color) {
color = color.replace(trimLeft, '').replace(trimRight, '').toLowerCase();
var named = false;
if (names[color]) {
color = names[color];
named = true;
}
else if (color == 'transparent') {
return { r: 0, g: 0, b: 0, a: 0 };
}
// Try to match string input using regular expressions.
// Keep most of the number bounding out of this function - don't worry about [0,1] or [0,100] or [0,360]
// Just return an object and let the conversion functions handle that.
// This way the result will be the same whether the tinycolor is initialized with string or object.
var match;
if ((match = matchers.rgb.exec(color))) {
return { r: match[1], g: match[2], b: match[3] };
}
if ((match = matchers.rgba.exec(color))) {
return { r: match[1], g: match[2], b: match[3], a: match[4] };
}
if ((match = matchers.hsl.exec(color))) {
return { h: match[1], s: match[2], l: match[3] };
}
if ((match = matchers.hsla.exec(color))) {
return { h: match[1], s: match[2], l: match[3], a: match[4] };
}
if ((match = matchers.hsv.exec(color))) {
return { h: match[1], s: match[2], v: match[3] };
}
if ((match = matchers.hex6.exec(color))) {
return {
r: parseHex(match[1]),
g: parseHex(match[2]),
b: parseHex(match[3]),
format: named ? "name" : "hex"
};
}
if ((match = matchers.hex3.exec(color))) {
return {
r: parseHex(match[1] + '' + match[1]),
g: parseHex(match[2] + '' + match[2]),
b: parseHex(match[3] + '' + match[3]),
format: named ? "name" : "hex"
};
}
return false;
}
// Everything is ready, expose to window
window.tinycolor = tinycolor;
})(this);