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