488 lines
15 KiB
Plaintext
488 lines
15 KiB
Plaintext
/**
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* Colorpicker component class
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*
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* @param {Object|String} element
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* @param {Object} options
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* @constructor
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*/
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var Colorpicker = function(element, options) {
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this.element = $(element).addClass('colorpicker-element');
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this.options = $.extend(true, {}, defaults, this.element.data(), options);
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this.component = this.options.component;
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this.component = (this.component !== false) ? this.element.find(this.component) : false;
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if (this.component && (this.component.length === 0)) {
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this.component = false;
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}
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this.container = (this.options.container === true) ? this.element : this.options.container;
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this.container = (this.container !== false) ? $(this.container) : false;
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// Is the element an input? Should we search inside for any input?
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this.input = this.element.is('input') ? this.element : (this.options.input ?
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this.element.find(this.options.input) : false);
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if (this.input && (this.input.length === 0)) {
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this.input = false;
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}
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// Set HSB color
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this.color = new Color(this.options.color !== false ? this.options.color : this.getValue(), this.options.colorSelectors);
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this.format = this.options.format !== false ? this.options.format : this.color.origFormat;
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if (this.options.color !== false) {
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this.updateInput(this.color);
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this.updateData(this.color);
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}
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// Setup picker
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this.picker = $(this.options.template);
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if (this.options.customClass) {
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this.picker.addClass(this.options.customClass);
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}
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if (this.options.inline) {
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this.picker.addClass('colorpicker-inline colorpicker-visible');
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} else {
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this.picker.addClass('colorpicker-hidden');
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}
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if (this.options.horizontal) {
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this.picker.addClass('colorpicker-horizontal');
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}
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if (this.format === 'rgba' || this.format === 'hsla' || this.options.format === false) {
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this.picker.addClass('colorpicker-with-alpha');
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}
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if (this.options.align === 'right') {
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this.picker.addClass('colorpicker-right');
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}
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if (this.options.inline === true) {
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this.picker.addClass('colorpicker-no-arrow');
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}
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if (this.options.colorSelectors) {
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var colorpicker = this;
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$.each(this.options.colorSelectors, function(name, color) {
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var $btn = $('<i />').css('background-color', color).data('class', name);
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$btn.click(function() {
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colorpicker.setValue($(this).css('background-color'));
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});
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colorpicker.picker.find('.colorpicker-selectors').append($btn);
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});
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this.picker.find('.colorpicker-selectors').show();
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}
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this.picker.on('mousedown.colorpicker touchstart.colorpicker', $.proxy(this.mousedown, this));
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this.picker.appendTo(this.container ? this.container : $('body'));
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// Bind events
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if (this.input !== false) {
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this.input.on({
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'keyup.colorpicker': $.proxy(this.keyup, this)
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});
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this.input.on({
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'change.colorpicker': $.proxy(this.change, this)
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});
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if (this.component === false) {
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this.element.on({
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'focus.colorpicker': $.proxy(this.show, this)
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});
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}
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if (this.options.inline === false) {
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this.element.on({
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'focusout.colorpicker': $.proxy(this.hide, this)
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});
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}
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}
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if (this.component !== false) {
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this.component.on({
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'click.colorpicker': $.proxy(this.show, this)
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});
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}
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if ((this.input === false) && (this.component === false)) {
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this.element.on({
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'click.colorpicker': $.proxy(this.show, this)
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});
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}
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// for HTML5 input[type='color']
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if ((this.input !== false) && (this.component !== false) && (this.input.attr('type') === 'color')) {
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this.input.on({
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'click.colorpicker': $.proxy(this.show, this),
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'focus.colorpicker': $.proxy(this.show, this)
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});
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}
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this.update();
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$($.proxy(function() {
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this.element.trigger('create');
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}, this));
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};
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Colorpicker.Color = Color;
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Colorpicker.prototype = {
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constructor: Colorpicker,
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destroy: function() {
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this.picker.remove();
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this.element.removeData('colorpicker', 'color').off('.colorpicker');
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if (this.input !== false) {
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this.input.off('.colorpicker');
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}
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if (this.component !== false) {
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this.component.off('.colorpicker');
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}
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this.element.removeClass('colorpicker-element');
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this.element.trigger({
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type: 'destroy'
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});
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},
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reposition: function() {
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if (this.options.inline !== false || this.options.container) {
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return false;
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}
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var type = this.container && this.container[0] !== document.body ? 'position' : 'offset';
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var element = this.component || this.element;
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var offset = element[type]();
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if (this.options.align === 'right') {
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offset.left -= this.picker.outerWidth() - element.outerWidth();
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}
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this.picker.css({
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top: offset.top + element.outerHeight(),
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left: offset.left
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});
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},
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show: function(e) {
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if (this.isDisabled()) {
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return false;
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}
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this.picker.addClass('colorpicker-visible').removeClass('colorpicker-hidden');
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this.reposition();
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$(window).on('resize.colorpicker', $.proxy(this.reposition, this));
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if (e && (!this.hasInput() || this.input.attr('type') === 'color')) {
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if (e.stopPropagation && e.preventDefault) {
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e.stopPropagation();
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e.preventDefault();
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}
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}
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if ((this.component || !this.input) && (this.options.inline === false)) {
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$(window.document).on({
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'mousedown.colorpicker': $.proxy(this.hide, this)
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});
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}
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this.element.trigger({
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type: 'showPicker',
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color: this.color
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});
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},
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hide: function() {
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this.picker.addClass('colorpicker-hidden').removeClass('colorpicker-visible');
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$(window).off('resize.colorpicker', this.reposition);
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$(document).off({
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'mousedown.colorpicker': this.hide
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});
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this.update();
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this.element.trigger({
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type: 'hidePicker',
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color: this.color
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});
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},
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updateData: function(val) {
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val = val || this.color.toString(this.format);
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this.element.data('color', val);
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return val;
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},
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updateInput: function(val) {
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val = val || this.color.toString(this.format);
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if (this.input !== false) {
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if (this.options.colorSelectors) {
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var color = new Color(val, this.options.colorSelectors);
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var alias = color.toAlias();
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if (typeof this.options.colorSelectors[alias] !== 'undefined') {
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val = alias;
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}
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}
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this.input.prop('value', val);
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}
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return val;
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},
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updatePicker: function(val) {
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if (val !== undefined) {
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this.color = new Color(val, this.options.colorSelectors);
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}
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var sl = (this.options.horizontal === false) ? this.options.sliders : this.options.slidersHorz;
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var icns = this.picker.find('i');
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if (icns.length === 0) {
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return;
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}
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if (this.options.horizontal === false) {
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sl = this.options.sliders;
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icns.eq(1).css('top', sl.hue.maxTop * (1 - this.color.value.h)).end()
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.eq(2).css('top', sl.alpha.maxTop * (1 - this.color.value.a));
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} else {
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sl = this.options.slidersHorz;
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icns.eq(1).css('left', sl.hue.maxLeft * (1 - this.color.value.h)).end()
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.eq(2).css('left', sl.alpha.maxLeft * (1 - this.color.value.a));
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}
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icns.eq(0).css({
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'top': sl.saturation.maxTop - this.color.value.b * sl.saturation.maxTop,
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'left': this.color.value.s * sl.saturation.maxLeft
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});
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this.picker.find('.colorpicker-saturation').css('backgroundColor', this.color.toHex(this.color.value.h, 1, 1, 1));
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this.picker.find('.colorpicker-alpha').css('backgroundColor', this.color.toHex());
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this.picker.find('.colorpicker-color, .colorpicker-color div').css('backgroundColor', this.color.toString(this.format));
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return val;
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},
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updateComponent: function(val) {
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val = val || this.color.toString(this.format);
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if (this.component !== false) {
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var icn = this.component.find('i').eq(0);
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if (icn.length > 0) {
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icn.css({
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'backgroundColor': val
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});
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} else {
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this.component.css({
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'backgroundColor': val
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});
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}
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}
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return val;
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},
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update: function(force) {
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var val;
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if ((this.getValue(false) !== false) || (force === true)) {
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// Update input/data only if the current value is not empty
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val = this.updateComponent();
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this.updateInput(val);
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this.updateData(val);
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this.updatePicker(); // only update picker if value is not empty
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}
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return val;
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},
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setValue: function(val) { // set color manually
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this.color = new Color(val, this.options.colorSelectors);
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this.update(true);
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this.element.trigger({
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type: 'changeColor',
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color: this.color,
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value: val
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});
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},
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getValue: function(defaultValue) {
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defaultValue = (defaultValue === undefined) ? '#000000' : defaultValue;
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var val;
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if (this.hasInput()) {
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val = this.input.val();
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} else {
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val = this.element.data('color');
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}
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if ((val === undefined) || (val === '') || (val === null)) {
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// if not defined or empty, return default
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val = defaultValue;
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}
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return val;
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},
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hasInput: function() {
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return (this.input !== false);
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},
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isDisabled: function() {
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if (this.hasInput()) {
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return (this.input.prop('disabled') === true);
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}
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return false;
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},
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disable: function() {
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if (this.hasInput()) {
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this.input.prop('disabled', true);
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this.element.trigger({
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type: 'disable',
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color: this.color,
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value: this.getValue()
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});
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return true;
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}
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return false;
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},
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enable: function() {
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if (this.hasInput()) {
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this.input.prop('disabled', false);
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this.element.trigger({
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type: 'enable',
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color: this.color,
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value: this.getValue()
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});
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return true;
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}
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return false;
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},
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currentSlider: null,
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mousePointer: {
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left: 0,
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top: 0
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},
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mousedown: function(e) {
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if (!e.pageX && !e.pageY && e.originalEvent && e.originalEvent.touches) {
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e.pageX = e.originalEvent.touches[0].pageX;
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e.pageY = e.originalEvent.touches[0].pageY;
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}
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e.stopPropagation();
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e.preventDefault();
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var target = $(e.target);
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//detect the slider and set the limits and callbacks
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var zone = target.closest('div');
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var sl = this.options.horizontal ? this.options.slidersHorz : this.options.sliders;
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if (!zone.is('.colorpicker')) {
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if (zone.is('.colorpicker-saturation')) {
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this.currentSlider = $.extend({}, sl.saturation);
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} else if (zone.is('.colorpicker-hue')) {
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this.currentSlider = $.extend({}, sl.hue);
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} else if (zone.is('.colorpicker-alpha')) {
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this.currentSlider = $.extend({}, sl.alpha);
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} else {
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return false;
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}
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var offset = zone.offset();
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//reference to guide's style
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this.currentSlider.guide = zone.find('i')[0].style;
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this.currentSlider.left = e.pageX - offset.left;
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this.currentSlider.top = e.pageY - offset.top;
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this.mousePointer = {
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left: e.pageX,
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top: e.pageY
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};
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//trigger mousemove to move the guide to the current position
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$(document).on({
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'mousemove.colorpicker': $.proxy(this.mousemove, this),
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'touchmove.colorpicker': $.proxy(this.mousemove, this),
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'mouseup.colorpicker': $.proxy(this.mouseup, this),
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'touchend.colorpicker': $.proxy(this.mouseup, this)
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}).trigger('mousemove');
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}
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return false;
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},
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mousemove: function(e) {
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if (!e.pageX && !e.pageY && e.originalEvent && e.originalEvent.touches) {
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e.pageX = e.originalEvent.touches[0].pageX;
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e.pageY = e.originalEvent.touches[0].pageY;
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}
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e.stopPropagation();
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e.preventDefault();
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var left = Math.max(
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0,
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Math.min(
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this.currentSlider.maxLeft,
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this.currentSlider.left + ((e.pageX || this.mousePointer.left) - this.mousePointer.left)
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)
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);
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var top = Math.max(
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0,
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Math.min(
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this.currentSlider.maxTop,
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this.currentSlider.top + ((e.pageY || this.mousePointer.top) - this.mousePointer.top)
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)
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);
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this.currentSlider.guide.left = left + 'px';
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this.currentSlider.guide.top = top + 'px';
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if (this.currentSlider.callLeft) {
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this.color[this.currentSlider.callLeft].call(this.color, left / this.currentSlider.maxLeft);
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}
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if (this.currentSlider.callTop) {
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this.color[this.currentSlider.callTop].call(this.color, top / this.currentSlider.maxTop);
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}
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// Change format dynamically
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// Only occurs if user choose the dynamic format by
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// setting option format to false
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if (this.currentSlider.callTop === 'setAlpha' && this.options.format === false) {
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// Converting from hex / rgb to rgba
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if (this.color.value.a !== 1) {
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this.format = 'rgba';
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this.color.origFormat = 'rgba';
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}
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// Converting from rgba to hex
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else {
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this.format = 'hex';
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this.color.origFormat = 'hex';
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}
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}
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this.update(true);
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this.element.trigger({
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type: 'changeColor',
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color: this.color
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});
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return false;
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},
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mouseup: function(e) {
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e.stopPropagation();
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e.preventDefault();
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$(document).off({
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'mousemove.colorpicker': this.mousemove,
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'touchmove.colorpicker': this.mousemove,
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'mouseup.colorpicker': this.mouseup,
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'touchend.colorpicker': this.mouseup
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});
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return false;
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},
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change: function(e) {
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this.keyup(e);
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},
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keyup: function(e) {
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if ((e.keyCode === 38)) {
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if (this.color.value.a < 1) {
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this.color.value.a = Math.round((this.color.value.a + 0.01) * 100) / 100;
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}
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this.update(true);
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} else if ((e.keyCode === 40)) {
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if (this.color.value.a > 0) {
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this.color.value.a = Math.round((this.color.value.a - 0.01) * 100) / 100;
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}
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this.update(true);
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} else {
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this.color = new Color(this.input.val(), this.options.colorSelectors);
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// Change format dynamically
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// Only occurs if user choose the dynamic format by
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// setting option format to false
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if (this.color.origFormat && this.options.format === false) {
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this.format = this.color.origFormat;
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}
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if (this.getValue(false) !== false) {
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this.updateData();
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this.updateComponent();
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this.updatePicker();
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}
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}
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this.element.trigger({
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type: 'changeColor',
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color: this.color,
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value: this.input.val()
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});
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}
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};
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$.colorpicker = Colorpicker;
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$.fn.colorpicker = function(option) {
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var pickerArgs = arguments,
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rv = null;
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var $returnValue = this.each(function() {
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var $this = $(this),
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inst = $this.data('colorpicker'),
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options = ((typeof option === 'object') ? option : {});
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if ((!inst) && (typeof option !== 'string')) {
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$this.data('colorpicker', new Colorpicker(this, options));
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} else {
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if (typeof option === 'string') {
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rv = inst[option].apply(inst, Array.prototype.slice.call(pickerArgs, 1));
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}
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}
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});
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if (option === 'getValue') {
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return rv;
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}
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return $returnValue;
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};
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$.fn.colorpicker.constructor = Colorpicker;
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