forked from bgrins/spectrum
/
spectrum.js
2473 lines (2138 loc) · 85.1 KB
/
spectrum.js
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(function (factory) {
"use strict";
if (typeof define === 'function' && define.amd) { // AMD
define(['jquery'], factory);
}
else if (typeof exports == "object" && typeof module == "object") { // CommonJS
module.exports = factory(require('jquery'));
}
else { // Browser
factory(jQuery);
}
})(function($, undefined) {
"use strict";
var defaultOpts = {
// Callbacks
beforeShow: noop,
move: noop,
change: noop,
show: noop,
hide: noop,
onChoseValidate: noop,
// Options
color: false,
flat: false, // Deprecated - use type instead
type: '', // text, color, component or flat
showInput: false,
allowEmpty: true,
showButtons: true,
clickoutFiresChange: true,
closeOnClickout: true,
showInitial: false,
showPalette: true,
showPaletteOnly: false,
hideAfterPaletteSelect: false,
togglePaletteOnly: false,
showSelectionPalette: true,
localStorageKey: false,
appendTo: "body",
maxSelectionSize: 8,
locale: "en",
cancelText: "cancel",
chooseText: "choose",
togglePaletteMoreText: "more",
togglePaletteLessText: "less",
clearText: "Clear Color Selection",
preferredFormat: "name",
className: "", // Deprecated - use containerClassName and replacerClassName instead.
containerClassName: "",
replacerClassName: "",
showAlpha: true,
theme: "sp-light",
palette: [
["#000000","#444444","#5b5b5b","#999999","#bcbcbc","#eeeeee","#f3f6f4","#ffffff"],
["#f44336","#744700","#ce7e00","#8fce00","#2986cc","#16537e","#6a329f","#c90076"],
["#f4cccc","#fce5cd","#fff2cc","#d9ead3","#d0e0e3","#cfe2f3","#d9d2e9","#ead1dc"],
["#ea9999","#f9cb9c","#ffe599","#b6d7a8","#a2c4c9","#9fc5e8","#b4a7d6","#d5a6bd"],
["#e06666","#f6b26b","#ffd966","#93c47d","#76a5af","#6fa8dc","#8e7cc3","#c27ba0"],
["#cc0000","#e69138","#f1c232","#6aa84f","#45818e","#3d85c6","#674ea7","#a64d79"],
["#990000","#b45f06","#bf9000","#38761d","#134f5c","#0b5394","#351c75","#741b47"],
["#660000","#783f04","#7f6000","#274e13","#0c343d","#073763","#20124d","#4c1130"]
],
selectionPalette: [],
disabled: false,
offset: null
},
spectrums = [],
IE = !!/msie/i.exec( window.navigator.userAgent ),
rgbaSupport = (function() {
function contains( str, substr ) {
return !!~('' + str).indexOf(substr);
}
var elem = document.createElement('div');
var style = elem.style;
style.cssText = 'background-color:rgba(0,0,0,.5)';
return contains(style.backgroundColor, 'rgba') || contains(style.backgroundColor, 'hsla');
})(),
replaceInput = [
"<button type='button' class='sp-replacer'>",
"<span class='sp-preview'><span class='sp-preview-inner'></span></span>",
"<span class='sp-dd'>▼</span>",
"</button>"
].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 sp-hidden'>",
"<div class='sp-palette-container'>",
"<div class='sp-palette sp-thumb sp-cf'></div>",
"<div class='sp-palette-button-container sp-cf'>",
"<button type='button' class='sp-palette-toggle'></button>",
"</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' tabindex='0'></div>",
"</div>",
"</div>",
"</div>",
"<div class='sp-clear sp-clear-display'>",
"</div>",
"<div class='sp-hue'>",
"<div class='sp-slider' tabindex='0'></div>",
gradientFix,
"</div>",
"</div>",
"<div class='sp-alpha'><div class='sp-alpha-inner'><div class='sp-alpha-handle' tabindex='0'></div></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'>",
"<button type='button' class='sp-cancel'></button>",
"<button type='button' class='sp-choose'></button>",
"</div>",
"</div>",
"</div>"
].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('<span title="' + formattedString + '" data-color="' + tiny.toRgbString() + '" class="' + c + '" role="button" tabindex="0"><span class="sp-thumb-inner" style="' + swatchStyle + ';"></span></span>');
} else {
html.push('<span class="sp-thumb-el sp-clear-display" role="button" tabindex="0"><span class="sp-clear-palette-only" style="background-color: transparent;"></span></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) {
o.locale = o.locale || window.navigator.language;
if (o.locale) o.locale = o.locale.split('-')[0].toLowerCase(); // handle locale like "fr-FR"
if (o.locale != 'en' && $.spectrum.localization[o.locale]) {
o = $.extend({}, $.spectrum.localization[o.locale], o);
}
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),
type = opts.type,
flat = (type == 'flat'),
showSelectionPalette = opts.showSelectionPalette,
localStorageKey = opts.localStorageKey,
theme = opts.theme,
callbacks = opts.callbacks,
resize = throttle(reflow, 10),
visible = false,
isDragging = false,
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",
abortNextInputChange = false,
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 && type == 'color',
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;
// Element to be updated with the input color. Populated in initialize method
var originalInputContainer = null,
colorizeElement = null,
colorizeElementInitialColor = null,
colorizeElementInitialBackground = null;
//If there is a label for this element, when clicked on, show the colour picker
var thisId = boundElement.attr('id');
if(thisId !== undefined && thisId.length > 0) {
var label = $('label[for="'+thisId+'"]');
if(label.length) {
label.on('click', function(e){
e.preventDefault();
boundElement.spectrum('show');
return false;
});
}
}
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 = Array.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;
}
}
// if showPaletteOnly and didn't set initialcolor
// set initialcolor to first palette
if (opts.showPaletteOnly && !initialColor) {
initialColor = (palette[0][0] === '') ? palette[0][0] : Object.keys(paletteLookup)[0];
}
}
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();
originalInputContainer = $('<span class="sp-original-input-container"></span>');
['margin'].forEach(function(cssProp) {
originalInputContainer.css(cssProp, boundElement.css(cssProp));
});
// inline-flex by default, switching to flex if needed
if (boundElement.css('display') == 'block') originalInputContainer.css('display', 'flex');
if (shouldReplace) {
boundElement.after(replacer).hide();
} else if (type == 'text') {
originalInputContainer.addClass('sp-colorize-container');
boundElement.addClass('spectrum sp-colorize').wrap(originalInputContainer);
} else if (type == 'component') {
boundElement.addClass('spectrum').wrap(originalInputContainer);
var addOn = $(["<div class='sp-colorize-container sp-add-on'>",
"<div class='sp-colorize'></div> ",
"</div>"].join(''));
var addOnWidth = boundElement.outerHeight();
// if value isn't falsy (0, null, undefined cf : https://developer.mozilla.org/en-US/docs/Glossary/Falsy)
if (addOnWidth) {
addOn.width(addOnWidth + 'px')
.css('border-radius', boundElement.css('border-radius'))
.css('border', boundElement.css('border'));
} else {
// Less js processing..
addOn
.css('border-radius', boundElement.css('border-radius'))
.css('border', boundElement.css('border'));
}
boundElement.addClass('with-add-on').before(addOn);
}
colorizeElement = boundElement.parent().find('.sp-colorize');
colorizeElementInitialColor = colorizeElement.css('color');
colorizeElementInitialBackground = colorizeElement.css('background-color');
if (!allowEmpty) {
clearButton.hide();
}
if (flat) {
boundElement.after(container).hide();
}
else {
var appendTo = opts.appendTo === "parent" ? boundElement.parent() : $(document).find(opts.appendTo);
if (appendTo.length !== 1) {
appendTo = $("body");
}
appendTo.append(container);
}
updateSelectionPaletteFromStorage();
offsetElement.on("click.spectrum touchstart.spectrum", function (e) {
if (!disabled) {
show();
}
e.stopPropagation();
if (!$(e.target).is("input")) {
e.preventDefault();
}
});
colorizeElement.on("click.spectrum touchstart.spectrum", function (e) {
if (!disabled) {
show();
}
e.stopPropagation();
});
if(boundElement.is(":disabled") || (opts.disabled === true)) {
disable();
}
// Prevent clicks from bubbling up to document. This would cause it to be hidden.
container.on("click", stopPropagation);
container.on("keydown", 'div[role="button"]', function(e) {
if (e.keyCode == 13) {
e.preventDefault();
$(this).click();
}
});
// Handle user typed input
[textInput, boundElement].forEach(function(input) {
input.on("change", function() { setFromTextInput(input.val()); });
input.on("paste", function () {
setTimeout(function() { setFromTextInput(input.val()); }, 1);
});
input.on("keydown", function (e) { if (e.keyCode == 13) {
setFromTextInput($(input).val());
if (input == boundElement) hide();
} });
});
cancelButton.text(opts.cancelText);
cancelButton.on("click.spectrum", function (e) {
e.stopPropagation();
e.preventDefault();
revert();
hide();
});
clearButton.attr("title", opts.clearText);
clearButton.on("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.on("click.spectrum", function (e) {
e.stopPropagation();
e.preventDefault();
if (typeof opts.onChoseValidate === 'function') {
var colorObj = get();
if (colorObj) colorObj.hex = colorObj.toString(currentPreferredFormat);
opts.onChoseValidate(colorObj);
}
if (IE && textInput.is(":focus")) {
textInput.trigger('change');
}
if (isValid()) {
updateOriginalInput(true);
hide();
}
});
toggleButton.text(opts.showPaletteOnly ? opts.togglePaletteMoreText : opts.togglePaletteLessText);
toggleButton.on("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 = tinycolor(initialColor).format || opts.preferredFormat;
addColorToSelectionPalette(initialColor);
} else if (initialColor === '') {
set(initialColor);
updateUI();
} 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 the picker is going to close immediately, a palette selection
// is a change. Otherwise, it's a move only.
if (opts.hideAfterPaletteSelect) {
updateOriginalInput(true);
hide();
} else {
updateOriginalInput();
}
}
return false;
}
var paletteEvent = IE ? "mousedown.spectrum" : "click.spectrum touchstart.spectrum";
paletteContainer.on(paletteEvent, ".sp-thumb-el", paletteElementClick);
initialColorContainer.on(paletteEvent, ".sp-thumb-el:nth-child(1)", { ignore: true }, paletteElementClick);
}
function updateSelectionPaletteFromStorage() {
if (localStorageKey) {
// Migrate old palettes over to new format. May want to remove this eventually.
try {
var localStorage = window.localStorage;
var oldPalette = localStorage[localStorageKey].split(",#");
if (oldPalette.length > 1) {
delete 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) {
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(value) {
if (abortNextInputChange) { abortNextInputChange = false; return; }
if ((value === null || value === "") && allowEmpty) {
set(null);
move();
updateOriginalInput();
}
else {
var tiny = tinycolor(value);
if (tiny.isValid()) {
set(tiny);
move();
updateOriginalInput();
}
else {
textInput.addClass("sp-validation-error");
}
}
}
function toggle() {
if (visible) {
hide();
}
else {
show();
}
}
function show() {
// debugger;
var event = $.Event('beforeShow.spectrum');
if (visible) {
reflow();
return;
}
boundElement.trigger(event, [ get() ]);
if (callbacks.beforeShow(get()) === false || event.isDefaultPrevented()) {
return;
}
hideAll();
visible = true;
$(doc).on("keydown.spectrum", onkeydown);
if (opts.closeOnClickout) $(doc).on("click.spectrum", clickout);
$(window).on("resize.spectrum", resize);
replacer.attr("aria-expanded", true);
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).off("keydown.spectrum", onkeydown);
$(doc).off("click.spectrum", clickout);
$(window).off("resize.spectrum", resize);
replacer.attr("aria-expanded", false);
replacer.removeClass("sp-active");
container.addClass("sp-hidden");
callbacks.hide(get());
boundElement.trigger('hide.spectrum', [ get() ]);
}
function revert() {
set(colorOnShow, true);
updateOriginalInput(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 || color === undefined) && allowEmpty) {
isEmpty = true;
} else {
isEmpty = false;
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 * 1000) / 1000
}, { 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);
}
boundElement.val(displayColor);
if (opts.type == "text" || opts.type == "component") {
var color = realColor;
if (color && colorizeElement) {
var textColor = (color.isLight() || color.getAlpha() < 0.4) ? 'black' : 'white';
colorizeElement.css('background-color', color.toRgbString()).css('color', textColor);
} else {
colorizeElement.css('background-color', colorizeElementInitialBackground)
.css('color', colorizeElementInitialColor);
}
}
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 = !tinycolor.equals(color, colorOnShow);
if (color) {
displayColor = color.toString(currentPreferredFormat);
// Update the selection palette with the current color
addColorToSelectionPalette(color);
}
if (fireCallback && hasChanged) {
callbacks.change(color);
// we trigger the change event or input, but the input change event is also binded
// to some spectrum processing, that we do no need
abortNextInputChange = true;
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();