',
].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 += "";
}
}
return [
"
",
"
",
"",
"
",
"",
'
',
'
',
"
",
"
",
"",
"
",
"
",
"
",
"
",
"",
'
',
'
',
'
',
"
",
'
',
"
",
"",
gradientFix,
'
',
'
',
"
",
'
',
"
",
"",
'
',
"",
"
",
"",
"",
'
',
'
',
'
',
].join('');
})();
function paletteTemplate(p, color, className, opts) {
var html = [];
for (var i = 0; i < p.length; i++) {
var current = p[i];
if (current) {
var tiny = tinycolor(current);
var c = tiny.toHsl().l < 0.5 ? 'sp-thumb-el sp-thumb-dark' : 'sp-thumb-el sp-thumb-light';
c += tinycolor.equals(color, current) ? ' sp-thumb-active' : '';
var formattedString = tiny.toString(opts.preferredFormat || 'rgb');
var swatchStyle = rgbaSupport ? 'background-color:' + tiny.toRgbString() : 'filter:' + tiny.toFilter();
html.push(
''
);
} else {
var cls = 'sp-clear-display';
html.push(
$('')
.append(
$('').attr(
'title',
opts.noColorSelectedText
)
)
.html()
);
}
}
return "
" + html.join('') + '
';
}
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,
showSelectionPalette = opts.showSelectionPalette,
localStorageKey = opts.localStorageKey,
theme = opts.theme,
callbacks = opts.callbacks,
resize = throttle(reflow, 10),
visible = false,
isDragging = false,
isDefault = true,
dragWidth = 0,
dragHeight = 0,
dragHelperHeight = 0,
slideHeight = 0,
slideWidth = 0,
alphaWidth = 0,
alphaSlideHelperWidth = 0,
slideHelperHeight = 0,
currentHue = 0,
currentSaturation = 0,
currentValue = 0,
currentAlpha = 1,
palette = [],
paletteArray = [],
paletteLookup = {},
selectionPalette = opts.selectionPalette.slice(0),
maxSelectionSize = opts.maxSelectionSize,
draggingClass = 'sp-dragging',
shiftMovementDirection = null;
var doc = element.ownerDocument,
body = doc.body,
boundElement = $(element),
disabled = false,
container = $(markup, doc).addClass(theme),
pickerContainer = container.find('.sp-picker-container'),
dragger = container.find('.sp-color'),
dragHelper = container.find('.sp-dragger'),
slider = container.find('.sp-hue'),
slideHelper = container.find('.sp-slider'),
alphaSliderInner = container.find('.sp-alpha-inner'),
alphaSlider = container.find('.sp-alpha'),
alphaSlideHelper = container.find('.sp-alpha-handle'),
textInput = container.find('.sp-input'),
paletteContainer = container.find('.sp-palette'),
initialColorContainer = container.find('.sp-initial'),
cancelButton = container.find('.sp-cancel'),
clearButton = container.find('.sp-clear'),
chooseButton = container.find('.sp-choose'),
toggleButton = container.find('.sp-palette-toggle'),
isInput = boundElement.is('input'),
isInputTypeColor = isInput && boundElement.attr('type') === 'color' && inputTypeColorSupport(),
shouldReplace = isInput && !flat,
replacer = shouldReplace
? $(replaceInput).addClass(theme).addClass(opts.className).addClass(opts.replacerClassName)
: $([]),
offsetElement = shouldReplace ? replacer : boundElement,
previewElement = replacer.find('.sp-preview-inner'),
initialColor = opts.color || (isInput && boundElement.val()),
colorOnShow = false,
currentPreferredFormat = opts.preferredFormat,
clickoutFiresChange = !opts.showButtons || opts.clickoutFiresChange,
isEmpty = !initialColor,
allowEmpty = opts.allowEmpty && !isInputTypeColor;
function applyOptions() {
if (opts.showPaletteOnly) {
opts.showPalette = true;
}
toggleButton.text(opts.showPaletteOnly ? opts.togglePaletteMoreText : opts.togglePaletteLessText);
if (opts.palette) {
palette = opts.palette.slice(0);
paletteArray = $.isArray(palette[0]) ? palette : [palette];
paletteLookup = {};
for (var i = 0; i < paletteArray.length; i++) {
for (var j = 0; j < paletteArray[i].length; j++) {
var rgb = tinycolor(paletteArray[i][j]).toRgbString();
paletteLookup[rgb] = true;
}
}
}
container.toggleClass('sp-flat', flat);
container.toggleClass('sp-input-disabled', !opts.showInput);
container.toggleClass('sp-alpha-enabled', opts.showAlpha);
container.toggleClass('sp-clear-enabled', allowEmpty);
container.toggleClass('sp-buttons-disabled', !opts.showButtons);
container.toggleClass('sp-palette-buttons-disabled', !opts.togglePaletteOnly);
container.toggleClass('sp-palette-disabled', !opts.showPalette);
container.toggleClass('sp-palette-only', opts.showPaletteOnly);
container.toggleClass('sp-initial-disabled', !opts.showInitial);
container.addClass(opts.className).addClass(opts.containerClassName);
reflow();
}
function initialize() {
if (IE) {
container.find('*:not(input)').attr('unselectable', 'on');
}
applyOptions();
if (shouldReplace) {
boundElement.after(replacer).hide();
}
if (!allowEmpty) {
clearButton.hide();
}
if (flat) {
boundElement.after(container).hide();
} else {
var appendTo = opts.appendTo === 'parent' ? boundElement.parent() : $(opts.appendTo);
if (appendTo.length !== 1) {
appendTo = $('body');
}
appendTo.append(container);
}
updateSelectionPaletteFromStorage();
offsetElement.bind('click.spectrum touchstart.spectrum', function (e) {
if (!disabled) {
toggle();
}
e.stopPropagation();
if (!$(e.target).is('input')) {
e.preventDefault();
}
});
if (boundElement.is(':disabled') || opts.disabled === true) {
disable();
}
// 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.text(opts.cancelText);
cancelButton.bind('click.spectrum', function (e) {
e.stopPropagation();
e.preventDefault();
revert();
hide();
});
clearButton.attr('title', opts.clearText);
clearButton.bind('click.spectrum', function (e) {
e.stopPropagation();
e.preventDefault();
isEmpty = true;
move();
if (flat) {
//for the flat style, this is a change event
updateOriginalInput(true);
}
});
chooseButton.text(opts.chooseText);
chooseButton.bind('click.spectrum', function (e) {
e.stopPropagation();
e.preventDefault();
if (IE && textInput.is(':focus')) {
textInput.trigger('change');
}
if (isValid()) {
updateOriginalInput(true);
hide();
}
});
toggleButton.text(opts.showPaletteOnly ? opts.togglePaletteMoreText : opts.togglePaletteLessText);
toggleButton.bind('click.spectrum', function (e) {
e.stopPropagation();
e.preventDefault();
opts.showPaletteOnly = !opts.showPaletteOnly;
// To make sure the Picker area is drawn on the right, next to the
// Palette area (and not below the palette), first move the Palette
// to the left to make space for the picker, plus 5px extra.
// The 'applyOptions' function puts the whole container back into place
// and takes care of the button-text and the sp-palette-only CSS class.
if (!opts.showPaletteOnly && !flat) {
container.css('left', '-=' + (pickerContainer.outerWidth(true) + 5));
}
applyOptions();
});
draggable(
alphaSlider,
function (dragX, dragY, e) {
currentAlpha = dragX / alphaWidth;
isEmpty = false;
if (e.shiftKey) {
currentAlpha = Math.round(currentAlpha * 10) / 10;
}
move();
},
dragStart,
dragStop
);
draggable(
slider,
function (dragX, dragY) {
currentHue = parseFloat(dragY / slideHeight);
isEmpty = false;
if (!opts.showAlpha) {
currentAlpha = 1;
}
move();
},
dragStart,
dragStop
);
draggable(
dragger,
function (dragX, dragY, e) {
// shift+drag should snap the movement to either the x or y axis.
if (!e.shiftKey) {
shiftMovementDirection = null;
} else if (!shiftMovementDirection) {
var oldDragX = currentSaturation * dragWidth;
var oldDragY = dragHeight - currentValue * dragHeight;
var furtherFromX = Math.abs(dragX - oldDragX) > Math.abs(dragY - oldDragY);
shiftMovementDirection = furtherFromX ? 'x' : 'y';
}
var setSaturation = !shiftMovementDirection || shiftMovementDirection === 'x';
var setValue = !shiftMovementDirection || shiftMovementDirection === 'y';
if (setSaturation) {
currentSaturation = parseFloat(dragX / dragWidth);
}
if (setValue) {
currentValue = parseFloat((dragHeight - dragY) / dragHeight);
}
isEmpty = false;
if (!opts.showAlpha) {
currentAlpha = 1;
}
move();
},
dragStart,
dragStop
);
if (!!initialColor) {
set(initialColor);
// In case color was black - update the preview UI and set the format
// since the set function will not run (default color is black).
updateUI();
currentPreferredFormat = opts.preferredFormat || tinycolor(initialColor).getFormat();
addColorToSelectionPalette(initialColor);
} else {
updateUI();
}
if (flat) {
show();
}
function paletteElementClick(e) {
if (e.data && e.data.ignore) {
set($(e.target).closest('.sp-thumb-el').data('color'));
move();
} else {
set($(e.target).closest('.sp-thumb-el').data('color'));
move();
if (opts.hideAfterPaletteSelect) {
updateOriginalInput(true);
hide();
}
}
return false;
}
var paletteEvent = IE ? 'mousedown.spectrum' : 'click.spectrum touchstart.spectrum';
paletteContainer.delegate('.sp-thumb-el', paletteEvent, paletteElementClick);
initialColorContainer.delegate('.sp-thumb-el:nth-child(1)', paletteEvent, { ignore: true }, paletteElementClick);
}
function updateSelectionPaletteFromStorage() {
if (localStorageKey && window.localStorage) {
// Migrate old palettes over to new format. May want to remove this eventually.
try {
var oldPalette = window.localStorage[localStorageKey].split(',#');
if (oldPalette.length > 1) {
delete window.localStorage[localStorageKey];
$.each(oldPalette, function (i, c) {
addColorToSelectionPalette(c);
});
}
} catch (e) {}
try {
selectionPalette = window.localStorage[localStorageKey].split(';');
} catch (e) {}
}
}
function addColorToSelectionPalette(color) {
if (showSelectionPalette) {
var rgb = tinycolor(color).toRgbString();
if (!paletteLookup[rgb] && $.inArray(rgb, selectionPalette) === -1) {
selectionPalette.push(rgb);
while (selectionPalette.length > maxSelectionSize) {
selectionPalette.shift();
}
}
if (localStorageKey && window.localStorage) {
try {
window.localStorage[localStorageKey] = selectionPalette.join(';');
} catch (e) {}
}
}
}
function getUniqueSelectionPalette() {
var unique = [];
if (opts.showPalette) {
for (var i = 0; i < selectionPalette.length; i++) {
var rgb = tinycolor(selectionPalette[i]).toRgbString();
if (!paletteLookup[rgb]) {
unique.push(selectionPalette[i]);
}
}
}
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, opts);
});
updateSelectionPaletteFromStorage();
if (selectionPalette) {
html.push(
paletteTemplate(getUniqueSelectionPalette(), currentColor, 'sp-palette-row sp-palette-row-selection', opts)
);
}
paletteContainer.html(html.join(''));
}
function drawInitial() {
if (opts.showInitial) {
var initial = colorOnShow;
var current = get();
initialColorContainer.html(paletteTemplate([initial, current], current, 'sp-palette-row-initial', opts));
}
}
function dragStart() {
if (dragHeight <= 0 || dragWidth <= 0 || slideHeight <= 0) {
reflow();
}
isDragging = true;
container.addClass(draggingClass);
shiftMovementDirection = null;
boundElement.trigger('dragstart.spectrum', [get()]);
}
function dragStop() {
isDragging = false;
container.removeClass(draggingClass);
boundElement.trigger('dragstop.spectrum', [get()]);
}
function setFromTextInput() {
var value = textInput.val();
if ((value === null || value === '') && allowEmpty) {
set(null);
updateOriginalInput(true);
} else {
var tiny = tinycolor(value);
if (tiny.isValid()) {
set(tiny);
updateOriginalInput(true);
} else {
textInput.addClass('sp-validation-error');
}
}
}
function toggle() {
if (visible) {
hide();
} else {
show();
}
}
function show() {
var event = $.Event('beforeShow.spectrum');
if (visible) {
reflow();
return;
}
boundElement.trigger('beforeShow.spectrum', [get()]);
if (callbacks.beforeShow(get()) === false || event.isDefaultPrevented()) {
return;
}
hideAll();
visible = true;
var $doc = $(doc);
$doc.bind('keydown.spectrum', onkeydown);
$doc.bind('click.spectrum', clickout);
$(window).bind('resize.spectrum', resize);
replacer.addClass('sp-active');
container.removeClass('sp-hidden');
reflow();
updateUI();
colorOnShow = get();
drawInitial();
callbacks.show(colorOnShow);
boundElement.trigger('show.spectrum', [colorOnShow]);
}
function onkeydown(e) {
// Close on ESC
if (e.keyCode === 27) {
hide();
}
}
function clickout(e) {
// Return on right click.
if (e.button == 2) {
return;
}
// If a drag event was happening during the mouseup, don't hide
// on click.
if (isDragging) {
return;
}
if (clickoutFiresChange) {
updateOriginalInput(true);
} else {
revert();
}
hide();
}
function hide() {
// Return if hiding is unnecessary
if (!visible || flat) {
return;
}
visible = false;
$(doc).unbind('keydown.spectrum', onkeydown);
$(doc).unbind('click.spectrum', clickout);
$(window).unbind('resize.spectrum', resize);
replacer.removeClass('sp-active');
container.addClass('sp-hidden');
callbacks.hide(get());
boundElement.trigger('hide.spectrum', [get()]);
}
function revert() {
set(colorOnShow, true);
}
function set(color, ignoreFormatChange) {
if (tinycolor.equals(color, get())) {
// Update UI just in case a validation error needs
// to be cleared.
updateUI();
return;
}
var newColor, newHsv;
if (!color && allowEmpty) {
isEmpty = true;
} else {
isEmpty = false;
isDefault = !color; // if no color is available an empty string will be passed. tinycolor will then set it to #000
newColor = tinycolor(color);
newHsv = newColor.toHsv();
currentHue = (newHsv.h % 360) / 360;
currentSaturation = newHsv.s;
currentValue = newHsv.v;
currentAlpha = newHsv.a;
}
updateUI();
if (newColor && newColor.isValid() && !ignoreFormatChange) {
currentPreferredFormat = opts.preferredFormat || newColor.getFormat();
}
}
function get(opts) {
opts = opts || {};
if (allowEmpty && isEmpty) {
return null;
}
return tinycolor.fromRatio(
{
h: currentHue,
s: currentSaturation,
v: currentValue,
a: Math.round(currentAlpha * 100) / 100,
},
{ format: opts.format || currentPreferredFormat }
);
}
function isValid() {
return !textInput.hasClass('sp-validation-error');
}
function move() {
updateUI();
callbacks.move(get());
boundElement.trigger('move.spectrum', [get()]);
}
function updateUI() {
textInput.removeClass('sp-validation-error');
updateHelperLocations();
// Update dragger background color (gradients take care of saturation and value).
var flatColor = tinycolor.fromRatio({ h: currentHue, s: 1, v: 1 });
dragger.css('background-color', flatColor.toHexString());
// Get a format that alpha will be included in (hex and names ignore alpha)
var format = currentPreferredFormat;
if (currentAlpha < 1 && !(currentAlpha === 0 && format === 'name')) {
if (format === 'hex' || format === 'hex3' || format === 'hex6' || format === 'name') {
format = 'rgb';
}
}
var realColor = get({ format: format }),
displayColor = '';
//reset background info for preview element
previewElement.removeClass('sp-clear-display');
previewElement.css('background-color', 'transparent');
if (!realColor && allowEmpty) {
// Update the replaced elements background with icon indicating no color selection
previewElement.addClass('sp-clear-display');
} else {
var realHex = realColor.toHexString(),
realRgb = realColor.toRgbString();
// Update the replaced elements background color (with actual selected color)
if (rgbaSupport || realColor.alpha === 1) {
previewElement.css('background-color', realRgb);
} else {
previewElement.css('background-color', 'transparent');
previewElement.css('filter', realColor.toFilter());
}
if (opts.showAlpha) {
var rgb = realColor.toRgb();
rgb.a = 0;
var realAlpha = tinycolor(rgb).toRgbString();
var gradient = 'linear-gradient(left, ' + realAlpha + ', ' + realHex + ')';
if (IE) {
alphaSliderInner.css('filter', tinycolor(realAlpha).toFilter({ gradientType: 1 }, realHex));
} else {
alphaSliderInner.css('background', '-webkit-' + gradient);
alphaSliderInner.css('background', '-moz-' + gradient);
alphaSliderInner.css('background', '-ms-' + gradient);
// Use current syntax gradient on unprefixed property.
alphaSliderInner.css('background', 'linear-gradient(to right, ' + realAlpha + ', ' + realHex + ')');
}
}
displayColor = realColor.toString(format);
}
// Update the text entry input as it changes happen
if (opts.showInput) {
textInput.val(displayColor);
}
if (opts.showPalette) {
drawPalette();
}
drawInitial();
}
function updateHelperLocations() {
var s = currentSaturation;
var v = currentValue;
if (allowEmpty && isEmpty) {
//if selected color is empty, hide the helpers
alphaSlideHelper.hide();
slideHelper.hide();
dragHelper.hide();
} else {
//make sure helpers are visible
alphaSlideHelper.show();
slideHelper.show();
dragHelper.show();
// 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 + 'px',
left: dragX + 'px',
});
var alphaX = currentAlpha * alphaWidth;
alphaSlideHelper.css({
left: alphaX - alphaSlideHelperWidth / 2 + 'px',
});
// Where to show the bar that displays your current selected hue
var slideY = currentHue * slideHeight;
slideHelper.css({
top: slideY - slideHelperHeight + 'px',
});
}
}
function updateOriginalInput(fireCallback) {
var color = get(),
displayColor = '',
hasChanged = isDefault ? true : !tinycolor.equals(color, colorOnShow);
if (color) {
displayColor = color.toString(currentPreferredFormat);
// Update the selection palette with the current color
!visible && addColorToSelectionPalette(color);
}
if (isInput) {
boundElement.val(displayColor);
}
if (fireCallback && hasChanged) {
callbacks.change(color);
boundElement.trigger('change', [color]);
}
}
function reflow() {
if (!visible) {
return; // Calculations would be useless and wouldn't be reliable anyways
}
dragWidth = dragger.width();
dragHeight = dragger.height();
dragHelperHeight = dragHelper.height();
slideWidth = slider.width();
slideHeight = slider.height();
slideHelperHeight = slideHelper.height();
alphaWidth = alphaSlider.width();
alphaSlideHelperWidth = alphaSlideHelper.width();
if (!flat) {
container.css('position', 'absolute');
if (opts.offset) {
container.offset(opts.offset);
} else {
container.offset(getOffset(container, offsetElement));
}
}
updateHelperLocations();
if (opts.showPalette) {
drawPalette();
}
boundElement.trigger('reflow.spectrum');
}
function destroy() {
boundElement.show();
offsetElement.unbind('click.spectrum touchstart.spectrum');
container.remove();
replacer.remove();
spectrums[spect.id] = null;
}
function option(optionName, optionValue) {
if (optionName === undefined) {
return $.extend({}, opts);
}
if (optionValue === undefined) {
return opts[optionName];
}
opts[optionName] = optionValue;
if (optionName === 'preferredFormat') {
currentPreferredFormat = opts.preferredFormat;
}
applyOptions();
}
function enable() {
disabled = false;
boundElement.attr('disabled', false);
offsetElement.removeClass('sp-disabled');
}
function disable() {
hide();
disabled = true;
boundElement.attr('disabled', true);
offsetElement.addClass('sp-disabled');
}
function setOffset(coord) {
opts.offset = coord;
reflow();
}
initialize();
var spect = {
show: show,
hide: hide,
toggle: toggle,
reflow: reflow,
option: option,
enable: enable,
disable: disable,
offset: setOffset,
set: function (c) {
set(c);
updateOriginalInput();
},
get: get,
destroy: destroy,
container: container,
};
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 inputHeight = input.outerHeight();
var doc = picker[0].ownerDocument;
var docElem = doc.documentElement;
var cW = docElem.clientWidth;
var cH = docElem.clientHeight;
var scL = $(doc).scrollLeft();
var scT = $(doc).scrollTop();
var viewWidth = cW + scL;
var viewHeight = cH + scT;
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 = document;
var dragging = false;
var offset = {};
var maxHeight = 0;
var maxWidth = 0;
var hasTouch = 'ontouchstart' in window;
var duringDragEvents = {};
duringDragEvents['selectstart'] = prevent;
duringDragEvents['dragstart'] = prevent;
duringDragEvents['touchmove mousemove'] = move;
duringDragEvents['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 && doc.documentMode < 9 && !e.button) {
return stop();
}
var t0 = e && e.touches && e.touches[0];
var pageX = (t0 && t0.pageX) || e.pageX;
var pageY = (t0 && t0.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, e]);
}
}
function start(e) {
var rightclick = e.which ? e.which == 3 : e.button == 2;
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');
move(e);
prevent(e);
}
}
}
function stop() {
if (dragging) {
$(doc).unbind(duringDragEvents);
$(doc.body).removeClass('sp-dragging');
// Wait a tick before notifying observers to allow the click event
// to fire in Chrome.
setTimeout(function () {
onstop.apply(element, arguments);
}, 0);
}
dragging = false;
}
$(element).bind('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);
};
}
function inputTypeColorSupport() {
return $.fn.spectrum.inputTypeColorSupport();
}
/**
* Define a jQuery plugin
*/
var dataID = 'spectrum.id';
$.fn.spectrum = function (opts, extra) {
if (typeof opts == 'string') {
var returnValue = this;
var args = Array.prototype.slice.call(arguments, 1);
this.each(function () {
var spect = spectrums[$(this).data(dataID)];
if (spect) {
var method = spect[opts];
if (!method) {
throw new Error("Spectrum: no such method: '" + opts + "'");
}
if (opts == 'get') {
returnValue = spect.get();
} else if (opts == 'container') {
returnValue = spect.container;
} else if (opts == 'option') {
returnValue = spect.option.apply(spect, args);
} else if (opts == 'destroy') {
spect.destroy();
$(this).removeData(dataID);
} else {
method.apply(spect, args);
}
}
});
return returnValue;
}
// Initializing a new instance of spectrum
return this.spectrum('destroy').each(function () {
var options = $.extend({}, opts, $(this).data());
var spect = spectrum(this, options);
$(this).data(dataID, spect.id);
});
};
$.fn.spectrum.load = true;
$.fn.spectrum.loadOpts = {};
$.fn.spectrum.draggable = draggable;
$.fn.spectrum.defaults = defaultOpts;
$.fn.spectrum.inputTypeColorSupport = function inputTypeColorSupport() {
if (typeof inputTypeColorSupport._cachedResult === 'undefined') {
var colorInput = $("")[0]; // if color element is supported, value will default to not null
inputTypeColorSupport._cachedResult = colorInput.type === 'color' && colorInput.value !== '';
}
return inputTypeColorSupport._cachedResult;
};
$.spectrum = {};
$.spectrum.localization = {};
$.spectrum.palettes = {};
$.fn.spectrum.processNativeColorInputs = function () {
var colorInputs = $('input[type=color]');
if (colorInputs.length && !inputTypeColorSupport()) {
colorInputs.spectrum({
preferredFormat: 'hex6',
});
}
};
// TinyColor v1.1.2
// https://github.com/bgrins/TinyColor
// Brian Grinstead, MIT License
//(function() {
var trimLeft = /^[\s,#]+/,
trimRight = /\s+$/,
tinyCounter = 0,
math = Math,
mathRound = math.round,
mathMin = math.min,
mathMax = math.max,
mathRandom = math.random;
var tinycolor = function (color, opts) {
color = color ? color : '';
opts = opts || {};
// If input is already a tinycolor, return itself
if (color instanceof tinycolor) {
return color;
}
// If we are called as a function, call using new instead
if (!(this instanceof tinycolor)) {
return new tinycolor(color, opts);
}
var rgb = inputToRGB(color);
(this._originalInput = color),
(this._r = rgb.r),
(this._g = rgb.g),
(this._b = rgb.b),
(this._a = rgb.a),
(this._roundA = mathRound(100 * this._a) / 100),
(this._format = opts.format || rgb.format);
this._gradientType = opts.gradientType;
// 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 by `inputToRgb`
if (this._r < 1) {
this._r = mathRound(this._r);
}
if (this._g < 1) {
this._g = mathRound(this._g);
}
if (this._b < 1) {
this._b = mathRound(this._b);
}
this._ok = rgb.ok;
this._tc_id = tinyCounter++;
};
tinycolor.prototype = {
isDark: function () {
return this.getBrightness() < 128;
},
isLight: function () {
return !this.isDark();
},
isValid: function () {
return this._ok;
},
getOriginalInput: function () {
return this._originalInput;
},
getFormat: function () {
return this._format;
},
getAlpha: function () {
return this._a;
},
getBrightness: function () {
var rgb = this.toRgb();
return (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000;
},
setAlpha: function (value) {
this._a = boundAlpha(value);
this._roundA = mathRound(100 * this._a) / 100;
return this;
},
toHsv: function () {
var hsv = rgbToHsv(this._r, this._g, this._b);
return { h: hsv.h * 360, s: hsv.s, v: hsv.v, a: this._a };
},
toHsvString: function () {
var hsv = rgbToHsv(this._r, this._g, this._b);
var h = mathRound(hsv.h * 360),
s = mathRound(hsv.s * 100),
v = mathRound(hsv.v * 100);
return this._a == 1
? 'hsv(' + h + ', ' + s + '%, ' + v + '%)'
: 'hsva(' + h + ', ' + s + '%, ' + v + '%, ' + this._roundA + ')';
},
toHsl: function () {
var hsl = rgbToHsl(this._r, this._g, this._b);
return { h: hsl.h * 360, s: hsl.s, l: hsl.l, a: this._a };
},
toHslString: function () {
var hsl = rgbToHsl(this._r, this._g, this._b);
var h = mathRound(hsl.h * 360),
s = mathRound(hsl.s * 100),
l = mathRound(hsl.l * 100);
return this._a == 1
? 'hsl(' + h + ', ' + s + '%, ' + l + '%)'
: 'hsla(' + h + ', ' + s + '%, ' + l + '%, ' + this._roundA + ')';
},
toHex: function (allow3Char) {
return rgbToHex(this._r, this._g, this._b, allow3Char);
},
toHexString: function (allow3Char) {
return '#' + this.toHex(allow3Char);
},
toHex8: function () {
return rgbaToHex(this._r, this._g, this._b, this._a);
},
toHex8String: function () {
return '#' + this.toHex8();
},
toRgb: function () {
return {
r: mathRound(this._r),
g: mathRound(this._g),
b: mathRound(this._b),
a: this._a,
};
},
toRgbString: function () {
return this._a == 1
? 'rgb(' + mathRound(this._r) + ', ' + mathRound(this._g) + ', ' + mathRound(this._b) + ')'
: 'rgba(' +
mathRound(this._r) +
', ' +
mathRound(this._g) +
', ' +
mathRound(this._b) +
', ' +
this._roundA +
')';
},
toPercentageRgb: function () {
return {
r: mathRound(bound01(this._r, 255) * 100) + '%',
g: mathRound(bound01(this._g, 255) * 100) + '%',
b: mathRound(bound01(this._b, 255) * 100) + '%',
a: this._a,
};
},
toPercentageRgbString: function () {
return this._a == 1
? 'rgb(' +
mathRound(bound01(this._r, 255) * 100) +
'%, ' +
mathRound(bound01(this._g, 255) * 100) +
'%, ' +
mathRound(bound01(this._b, 255) * 100) +
'%)'
: 'rgba(' +
mathRound(bound01(this._r, 255) * 100) +
'%, ' +
mathRound(bound01(this._g, 255) * 100) +
'%, ' +
mathRound(bound01(this._b, 255) * 100) +
'%, ' +
this._roundA +
')';
},
toName: function () {
if (this._a === 0) {
return 'transparent';
}
if (this._a < 1) {
return false;
}
return hexNames[rgbToHex(this._r, this._g, this._b, true)] || false;
},
toFilter: function (secondColor) {
var hex8String = '#' + rgbaToHex(this._r, this._g, this._b, this._a);
var secondHex8String = hex8String;
var gradientType = this._gradientType ? 'GradientType = 1, ' : '';
if (secondColor) {
var s = tinycolor(secondColor);
secondHex8String = s.toHex8String();
}
return (
'progid:DXImageTransform.Microsoft.gradient(' +
gradientType +
'startColorstr=' +
hex8String +
',endColorstr=' +
secondHex8String +
')'
);
},
toString: function (format) {
var formatSet = !!format;
format = format || this._format;
var formattedString = false;
var hasAlpha = this._a < 1 && this._a >= 0;
var needsAlphaFormat =
!formatSet && hasAlpha && (format === 'hex' || format === 'hex6' || format === 'hex3' || format === 'name');
if (needsAlphaFormat) {
// Special case for "transparent", all other non-alpha formats
// will return rgba when there is transparency.
if (format === 'name' && this._a === 0) {
return this.toName();
}
return this.toRgbString();
}
if (format === 'rgb') {
formattedString = this.toRgbString();
}
if (format === 'prgb') {
formattedString = this.toPercentageRgbString();
}
if (format === 'hex' || format === 'hex6') {
formattedString = this.toHexString();
}
if (format === 'hex3') {
formattedString = this.toHexString(true);
}
if (format === 'hex8') {
formattedString = this.toHex8String();
}
if (format === 'name') {
formattedString = this.toName();
}
if (format === 'hsl') {
formattedString = this.toHslString();
}
if (format === 'hsv') {
formattedString = this.toHsvString();
}
return formattedString || this.toHexString();
},
_applyModification: function (fn, args) {
var color = fn.apply(null, [this].concat([].slice.call(args)));
this._r = color._r;
this._g = color._g;
this._b = color._b;
this.setAlpha(color._a);
return this;
},
lighten: function () {
return this._applyModification(lighten, arguments);
},
brighten: function () {
return this._applyModification(brighten, arguments);
},
darken: function () {
return this._applyModification(darken, arguments);
},
desaturate: function () {
return this._applyModification(desaturate, arguments);
},
saturate: function () {
return this._applyModification(saturate, arguments);
},
greyscale: function () {
return this._applyModification(greyscale, arguments);
},
spin: function () {
return this._applyModification(spin, arguments);
},
_applyCombination: function (fn, args) {
return fn.apply(null, [this].concat([].slice.call(args)));
},
analogous: function () {
return this._applyCombination(analogous, arguments);
},
complement: function () {
return this._applyCombination(complement, arguments);
},
monochromatic: function () {
return this._applyCombination(monochromatic, arguments);
},
splitcomplement: function () {
return this._applyCombination(splitcomplement, arguments);
},
triad: function () {
return this._applyCombination(triad, arguments);
},
tetrad: function () {
return this._applyCombination(tetrad, arguments);
},
};
// 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, opts) {
if (typeof color == 'object') {
var newColor = {};
for (var i in color) {
if (color.hasOwnProperty(i)) {
if (i === 'a') {
newColor[i] = color[i];
} else {
newColor[i] = convertToPercentage(color[i]);
}
}
}
color = newColor;
}
return tinycolor(color, opts);
};
// Given a string or object, convert that input to RGB
// Possible string inputs:
//
// "red"
// "#f00" or "f00"
// "#ff0000" or "ff0000"
// "#ff000000" or "ff000000"
// "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 = String(color.r).substr(-1) === '%' ? 'prgb' : 'rgb';
} else if (color.hasOwnProperty('h') && color.hasOwnProperty('s') && color.hasOwnProperty('v')) {
color.s = convertToPercentage(color.s);
color.v = convertToPercentage(color.v);
rgb = hsvToRgb(color.h, color.s, color.v);
ok = true;
format = 'hsv';
} else if (color.hasOwnProperty('h') && color.hasOwnProperty('s') && color.hasOwnProperty('l')) {
color.s = convertToPercentage(color.s);
color.l = convertToPercentage(color.l);
rgb = hslToRgb(color.h, color.s, color.l);
ok = true;
format = 'hsl';
}
if (color.hasOwnProperty('a')) {
a = color.a;
}
}
a = boundAlpha(a);
return {
ok: ok,
format: color.format || format,
r: mathMin(255, mathMax(rgb.r, 0)),
g: mathMin(255, mathMax(rgb.g, 0)),
b: mathMin(255, mathMax(rgb.b, 0)),
a: a,
};
}
// Conversion Functions
// --------------------
// `rgbToHsl`, `rgbToHsv`, `hslToRgb`, `hsvToRgb` modified from:
//
// `rgbToRgb`
// Handle bounds / percentage checking to conform to CSS color spec
//
// *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) {
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, allow3Char) {
var hex = [pad2(mathRound(r).toString(16)), pad2(mathRound(g).toString(16)), pad2(mathRound(b).toString(16))];
// Return a 3 character hex if possible
if (
allow3Char &&
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('');
}
// `rgbaToHex`
// Converts an RGBA color plus alpha transparency to hex
// Assumes r, g, b and a are contained in the set [0, 255]
// Returns an 8 character hex
function rgbaToHex(r, g, b, a) {
var hex = [
pad2(convertDecimalToHex(a)),
pad2(mathRound(r).toString(16)),
pad2(mathRound(g).toString(16)),
pad2(mathRound(b).toString(16)),
];
return hex.join('');
}
// `equals`
// Can be called with any tinycolor input
tinycolor.equals = function (color1, color2) {
if (!color1 || !color2) {
return false;
}
return tinycolor(color1).toRgbString() == tinycolor(color2).toRgbString();
};
tinycolor.random = function () {
return tinycolor.fromRatio({
r: mathRandom(),
g: mathRandom(),
b: mathRandom(),
});
};
// Modification Functions
// ----------------------
// Thanks to less.js for some of the basics here
//
function desaturate(color, amount) {
amount = amount === 0 ? 0 : amount || 10;
var hsl = tinycolor(color).toHsl();
hsl.s -= amount / 100;
hsl.s = clamp01(hsl.s);
return tinycolor(hsl);
}
function saturate(color, amount) {
amount = amount === 0 ? 0 : amount || 10;
var hsl = tinycolor(color).toHsl();
hsl.s += amount / 100;
hsl.s = clamp01(hsl.s);
return tinycolor(hsl);
}
function greyscale(color) {
return tinycolor(color).desaturate(100);
}
function lighten(color, amount) {
amount = amount === 0 ? 0 : amount || 10;
var hsl = tinycolor(color).toHsl();
hsl.l += amount / 100;
hsl.l = clamp01(hsl.l);
return tinycolor(hsl);
}
function brighten(color, amount) {
amount = amount === 0 ? 0 : amount || 10;
var rgb = tinycolor(color).toRgb();
rgb.r = mathMax(0, mathMin(255, rgb.r - mathRound(255 * -(amount / 100))));
rgb.g = mathMax(0, mathMin(255, rgb.g - mathRound(255 * -(amount / 100))));
rgb.b = mathMax(0, mathMin(255, rgb.b - mathRound(255 * -(amount / 100))));
return tinycolor(rgb);
}
function darken(color, amount) {
amount = amount === 0 ? 0 : amount || 10;
var hsl = tinycolor(color).toHsl();
hsl.l -= amount / 100;
hsl.l = clamp01(hsl.l);
return tinycolor(hsl);
}
// Spin takes a positive or negative amount within [-360, 360] indicating the change of hue.
// Values outside of this range will be wrapped into this range.
function spin(color, amount) {
var hsl = tinycolor(color).toHsl();
var hue = (mathRound(hsl.h) + amount) % 360;
hsl.h = hue < 0 ? 360 + hue : hue;
return tinycolor(hsl);
}
// Combination Functions
// ---------------------
// Thanks to jQuery xColor for some of the ideas behind these
//
function complement(color) {
var hsl = tinycolor(color).toHsl();
hsl.h = (hsl.h + 180) % 360;
return tinycolor(hsl);
}
function triad(color) {
var hsl = tinycolor(color).toHsl();
var h = hsl.h;
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 }),
];
}
function tetrad(color) {
var hsl = tinycolor(color).toHsl();
var h = hsl.h;
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 }),
];
}
function splitcomplement(color) {
var hsl = tinycolor(color).toHsl();
var h = hsl.h;
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 }),
];
}
function analogous(color, results, slices) {
results = results || 6;
slices = slices || 30;
var hsl = tinycolor(color).toHsl();
var part = 360 / slices;
var ret = [tinycolor(color)];
for (hsl.h = (hsl.h - ((part * results) >> 1) + 720) % 360; --results; ) {
hsl.h = (hsl.h + part) % 360;
ret.push(tinycolor(hsl));
}
return ret;
}
function monochromatic(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;
}
// Utility Functions
// ---------------------
tinycolor.mix = function (color1, color2, amount) {
amount = amount === 0 ? 0 : amount || 50;
var rgb1 = tinycolor(color1).toRgb();
var rgb2 = tinycolor(color2).toRgb();
var p = amount / 100;
var w = p * 2 - 1;
var a = rgb2.a - rgb1.a;
var w1;
if (w * a == -1) {
w1 = w;
} else {
w1 = (w + a) / (1 + w * a);
}
w1 = (w1 + 1) / 2;
var w2 = 1 - w1;
var rgba = {
r: rgb2.r * w1 + rgb1.r * w2,
g: rgb2.g * w1 + rgb1.g * w2,
b: rgb2.b * w1 + rgb1.b * w2,
a: rgb2.a * p + rgb1.a * (1 - p),
};
return tinycolor(rgba);
};
// Readability Functions
// ---------------------
//
// `readability`
// Analyze the 2 colors and returns an object with the following properties:
// `brightness`: difference in brightness between the two colors
// `color`: difference in color/hue between the two colors
tinycolor.readability = function (color1, color2) {
var c1 = tinycolor(color1);
var c2 = tinycolor(color2);
var rgb1 = c1.toRgb();
var rgb2 = c2.toRgb();
var brightnessA = c1.getBrightness();
var brightnessB = c2.getBrightness();
var colorDiff =
Math.max(rgb1.r, rgb2.r) -
Math.min(rgb1.r, rgb2.r) +
Math.max(rgb1.g, rgb2.g) -
Math.min(rgb1.g, rgb2.g) +
Math.max(rgb1.b, rgb2.b) -
Math.min(rgb1.b, rgb2.b);
return {
brightness: Math.abs(brightnessA - brightnessB),
color: colorDiff,
};
};
// `readable`
// http://www.w3.org/TR/AERT#color-contrast
// Ensure that foreground and background color combinations provide sufficient contrast.
// *Example*
// tinycolor.isReadable("#000", "#111") => false
tinycolor.isReadable = function (color1, color2) {
var readability = tinycolor.readability(color1, color2);
return readability.brightness > 125 && readability.color > 500;
};
// `mostReadable`
// Given a base color and a list of possible foreground or background
// colors for that base, returns the most readable color.
// *Example*
// tinycolor.mostReadable("#123", ["#fff", "#000"]) => "#000"
tinycolor.mostReadable = function (baseColor, colorList) {
var bestColor = null;
var bestScore = 0;
var bestIsReadable = false;
for (var i = 0; i < colorList.length; i++) {
// We normalize both around the "acceptable" breaking point,
// but rank brightness constrast higher than hue.
var readability = tinycolor.readability(baseColor, colorList[i]);
var readable = readability.brightness > 125 && readability.color > 500;
var score = 3 * (readability.brightness / 125) + readability.color / 500;
if (
(readable && !bestIsReadable) ||
(readable && bestIsReadable && score > bestScore) ||
(!readable && !bestIsReadable && score > bestScore)
) {
bestIsReadable = readable;
bestScore = score;
bestColor = tinycolor(colorList[i]);
}
}
return bestColor;
};
// Big List of Colors
// ------------------
//
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',
rebeccapurple: '663399',
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;
}
// Return a valid alpha value [0,1] with all invalid values being set to 1
function boundAlpha(a) {
a = parseFloat(a);
if (isNaN(a) || a < 0 || a > 1) {
a = 1;
}
return a;
}
// 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 = parseInt(n * max, 10) / 100;
}
// Handle floating point rounding errors
if (math.abs(n - max) < 0.000001) {
return 1;
}
// Convert into [0, 1] range if it isn't already
return (n % max) / parseFloat(max);
}
// Force a number between 0 and 1
function clamp01(val) {
return mathMin(1, mathMax(0, val));
}
// Parse a base-16 hex value into a base-10 integer
function parseIntFromHex(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
//
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;
}
// Force a hex value to have 2 characters
function pad2(c) {
return c.length == 1 ? '0' + c : '' + c;
}
// Replace a decimal with it's percentage value
function convertToPercentage(n) {
if (n <= 1) {
n = n * 100 + '%';
}
return n;
}
// Converts a decimal to a hex value
function convertDecimalToHex(d) {
return Math.round(parseFloat(d) * 255).toString(16);
}
// Converts a hex value to a decimal
function convertHexToDecimal(h) {
return parseIntFromHex(h) / 255;
}
var matchers = (function () {
//
var CSS_INTEGER = '[-\\+]?\\d+%?';
//
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),
hsva: new RegExp('hsva' + PERMISSIVE_MATCH4),
hex3: /^([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
hex6: /^([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/,
hex8: /^([0-9a-fA-F]{2})([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, format: 'name' };
}
// 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.hsva.exec(color))) {
return { h: match[1], s: match[2], v: match[3], a: match[4] };
}
if ((match = matchers.hex8.exec(color))) {
return {
a: convertHexToDecimal(match[1]),
r: parseIntFromHex(match[2]),
g: parseIntFromHex(match[3]),
b: parseIntFromHex(match[4]),
format: named ? 'name' : 'hex8',
};
}
if ((match = matchers.hex6.exec(color))) {
return {
r: parseIntFromHex(match[1]),
g: parseIntFromHex(match[2]),
b: parseIntFromHex(match[3]),
format: named ? 'name' : 'hex',
};
}
if ((match = matchers.hex3.exec(color))) {
return {
r: parseIntFromHex(match[1] + '' + match[1]),
g: parseIntFromHex(match[2] + '' + match[2]),
b: parseIntFromHex(match[3] + '' + match[3]),
format: named ? 'name' : 'hex',
};
}
return false;
}
window.tinycolor = tinycolor;
//})();
$(function () {
if ($.fn.spectrum.load) {
$.fn.spectrum.processNativeColorInputs();
}
});
}