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/*!
* colorpicker
* 颜色选择组件
*/
layui.define(['jquery', 'lay'], function(exports){
"use strict";
var $ = layui.jquery
,lay = layui.lay
,device = layui.device()
,clickOrMousedown = (device.mobile ? 'click' : 'mousedown')
//外部接口
,colorpicker = {
config: {}
,index: layui.colorpicker ? (layui.colorpicker.index + 10000) : 0
//设置全局项
,set: function(options){
var that = this;
that.config = $.extend({}, that.config, options);
return that;
}
//事件
,on: function(events, callback){
return layui.onevent.call(this, 'colorpicker', events, callback);
}
}
//操作当前实例
,thisColorPicker = function(){
var that = this
,options = that.config;
return {
config: options
}
}
//字符常量
,MOD_NAME = 'colorpicker', SHOW = 'layui-show', THIS = 'layui-this', ELEM = 'layui-colorpicker'
,ELEM_MAIN = '.layui-colorpicker-main', ICON_PICKER_DOWN = 'layui-icon-down', ICON_PICKER_CLOSE = 'layui-icon-close'
,PICKER_TRIG_SPAN = 'layui-colorpicker-trigger-span', PICKER_TRIG_I = 'layui-colorpicker-trigger-i', PICKER_SIDE = 'layui-colorpicker-side', PICKER_SIDE_SLIDER = 'layui-colorpicker-side-slider'
,PICKER_BASIS = 'layui-colorpicker-basis', PICKER_ALPHA_BG = 'layui-colorpicker-alpha-bgcolor', PICKER_ALPHA_SLIDER = 'layui-colorpicker-alpha-slider', PICKER_BASIS_CUR = 'layui-colorpicker-basis-cursor', PICKER_INPUT = 'layui-colorpicker-main-input'
//RGB转HSB
,RGBToHSB = function(rgb){
var hsb = {h:0, s:0, b:0};
var min = Math.min(rgb.r, rgb.g, rgb.b);
var max = Math.max(rgb.r, rgb.g, rgb.b);
var delta = max - min;
hsb.b = max;
hsb.s = max != 0 ? 255*delta/max : 0;
if(hsb.s != 0){
if(rgb.r == max){
hsb.h = (rgb.g - rgb.b) / delta;
}else if(rgb.g == max){
hsb.h = 2 + (rgb.b - rgb.r) / delta;
}else{
hsb.h = 4 + (rgb.r - rgb.g) / delta;
}
}else{
hsb.h = -1;
};
if(max == min){
hsb.h = 0;
};
hsb.h *= 60;
if(hsb.h < 0) {
hsb.h += 360;
};
hsb.s *= 100/255;
hsb.b *= 100/255;
return hsb;
}
//HEX转HSB
,HEXToHSB = function(hex){
var hex = hex.indexOf('#') > -1 ? hex.substring(1) : hex;
if(hex.length == 3){
var num = hex.split("");
hex = num[0]+num[0]+num[1]+num[1]+num[2]+num[2]
};
hex = parseInt(hex, 16);
var rgb = {r:hex >> 16, g:(hex & 0x00FF00) >> 8, b:(hex & 0x0000FF)};
return RGBToHSB(rgb);
}
//HSB转RGB
,HSBToRGB = function(hsb){
var rgb = {};
var h = hsb.h;
var s = hsb.s*255/100;
var b = hsb.b*255/100;
if(s == 0){
rgb.r = rgb.g = rgb.b = b;
}else{
var t1 = b;
var t2 = (255 - s) * b /255;
var t3 = (t1 - t2) * (h % 60) /60;
if(h == 360) h = 0;
if(h < 60) {rgb.r=t1; rgb.b=t2; rgb.g=t2+t3}
else if(h < 120) {rgb.g=t1; rgb.b=t2; rgb.r=t1-t3}
else if(h < 180) {rgb.g=t1; rgb.r=t2; rgb.b=t2+t3}
else if(h < 240) {rgb.b=t1; rgb.r=t2; rgb.g=t1-t3}
else if(h < 300) {rgb.b=t1; rgb.g=t2; rgb.r=t2+t3}
else if(h < 360) {rgb.r=t1; rgb.g=t2; rgb.b=t1-t3}
else {rgb.r=0; rgb.g=0; rgb.b=0}
}
return {r:Math.round(rgb.r), g:Math.round(rgb.g), b:Math.round(rgb.b)};
}
//HSB转HEX
,HSBToHEX = function(hsb){
var rgb = HSBToRGB(hsb);
var hex = [
rgb.r.toString(16)
,rgb.g.toString(16)
,rgb.b.toString(16)
];
$.each(hex, function(nr, val){
if(val.length == 1){
hex[nr] = '0' + val;
}
});
return hex.join('');
}
//转化成所需rgb格式
,RGBSTo = function(rgbs){
var regexp = /[0-9]{1,3}/g;
var re = rgbs.match(regexp) || [];
return {r:re[0], g:re[1], b:re[2]};
}
,$win = $(window)
,$doc = $(document)
//构造器
,Class = function(options){
var that = this;
that.index = ++colorpicker.index;
that.config = $.extend({}, that.config, colorpicker.config, options);
that.render();
};
//默认配置
Class.prototype.config = {
color: '' //默认颜色,默认没有
,size: null //选择器大小
,alpha: false //是否开启透明度
,format: 'hex' //颜色显示/输入格式,可选 rgb,hex
,predefine: false //预定义颜色是否开启
,colors: [ //默认预定义颜色列表
'#009688', '#5FB878', '#1E9FFF', '#FF5722', '#FFB800', '#01AAED', '#999', '#c00', '#ff8c00','#ffd700'
,'#90ee90', '#00ced1', '#1e90ff', '#c71585', 'rgb(0, 186, 189)', 'rgb(255, 120, 0)', 'rgb(250, 212, 0)', '#393D49', 'rgba(0,0,0,.5)', 'rgba(255, 69, 0, 0.68)', 'rgba(144, 240, 144, 0.5)', 'rgba(31, 147, 255, 0.73)'
]
};
//初始颜色选择框
Class.prototype.render = function(){
var that = this
,options = that.config
//颜色选择框对象
,elemColorBox = $(['<div class="layui-unselect layui-colorpicker">'
,'<span '+ (options.format == 'rgb' && options.alpha
? 'class="layui-colorpicker-trigger-bgcolor"'
: '') +'>'
,'<span class="layui-colorpicker-trigger-span" '
,'lay-type="'+ (options.format == 'rgb' ? (options.alpha ? 'rgba' : 'torgb') : '') +'" '
,'style="'+ function(){
var bgstr = '';
if(options.color){
bgstr = options.color;
if((options.color.match(/[0-9]{1,3}/g) || []).length > 3){ //需要优化
if(!(options.alpha && options.format == 'rgb')){
bgstr = '#' + HSBToHEX(RGBToHSB(RGBSTo(options.color)))
}
}
return 'background: '+ bgstr;
}
return bgstr;
}() +'">'
,'<i class="layui-icon layui-colorpicker-trigger-i '+ (options.color
? ICON_PICKER_DOWN
: ICON_PICKER_CLOSE) +'"></i>'
,'</span>'
,'</span>'
,'</div>'].join(''))
//初始化颜色选择框
var othis = $(options.elem);
options.size && elemColorBox.addClass('layui-colorpicker-'+ options.size); //初始化颜色选择框尺寸
//插入颜色选择框
othis.addClass('layui-inline').html(
that.elemColorBox = elemColorBox
);
//获取背景色值
that.color = that.elemColorBox.find('.'+ PICKER_TRIG_SPAN)[0].style.background;
//相关事件
that.events();
};
//渲染颜色选择器
Class.prototype.renderPicker = function(){
var that = this
,options = that.config
,elemColorBox = that.elemColorBox[0]
//颜色选择器对象
,elemPicker = that.elemPicker = $(['<div id="layui-colorpicker'+ that.index +'" data-index="'+ that.index +'" class="layui-anim layui-anim-downbit layui-colorpicker-main">'
//颜色面板
,'<div class="layui-colorpicker-main-wrapper">'
,'<div class="layui-colorpicker-basis">'
,'<div class="layui-colorpicker-basis-white"></div>'
,'<div class="layui-colorpicker-basis-black"></div>'
,'<div class="layui-colorpicker-basis-cursor"></div>'
,'</div>'
,'<div class="layui-colorpicker-side">'
,'<div class="layui-colorpicker-side-slider"></div>'
,'</div>'
,'</div>'
//透明度条块
,'<div class="layui-colorpicker-main-alpha '+ (options.alpha ? SHOW : '') +'">'
,'<div class="layui-colorpicker-alpha-bgcolor">'
,'<div class="layui-colorpicker-alpha-slider"></div>'
,'</div>'
,'</div>'
//预设颜色列表
,function(){
if(options.predefine){
var list = ['<div class="layui-colorpicker-main-pre">'];
layui.each(options.colors, function(i, v){
list.push(['<div class="layui-colorpicker-pre'+ ((v.match(/[0-9]{1,3}/g) || []).length > 3
? ' layui-colorpicker-pre-isalpha'
: '') +'">'
,'<div style="background:'+ v +'"></div>'
,'</div>'].join(''));
});
list.push('</div>');
return list.join('');
} else {
return '';
}
}()
//底部表单元素区域
,'<div class="layui-colorpicker-main-input">'
,'<div class="layui-inline">'
,'<input type="text" class="layui-input">'
,'</div>'
,'<div class="layui-btn-container">'
,'<button class="layui-btn layui-btn-primary layui-btn-sm" colorpicker-events="clear">清空</button>'
,'<button class="layui-btn layui-btn-sm" colorpicker-events="confirm">确定</button>'
,'</div'
,'</div>'
,'</div>'].join(''))
,elemColorBoxSpan = that.elemColorBox.find('.' + PICKER_TRIG_SPAN)[0];
//如果当前点击的颜色盒子已经存在选择器,则关闭
if($(ELEM_MAIN)[0] && $(ELEM_MAIN).data('index') == that.index){
that.removePicker(Class.thisElemInd);
} else { //插入颜色选择器
that.removePicker(Class.thisElemInd);
$('body').append(elemPicker);
}
Class.thisElemInd = that.index; //记录最新打开的选择器索引
Class.thisColor = elemColorBox.style.background //记录最新打开的选择器颜色选中值
that.position();
that.pickerEvents();
};
//颜色选择器移除
Class.prototype.removePicker = function(index){
var that = this
,options = that.config;
$('#layui-colorpicker'+ (index || that.index)).remove();
return that;
};
//定位算法
Class.prototype.position = function(){
var that = this
,options = that.config;
lay.position(that.bindElem || that.elemColorBox[0], that.elemPicker[0], {
position: options.position
,align: 'center'
});
return that;
};
//颜色选择器赋值
Class.prototype.val = function(){
var that = this
,options = that.config
,elemColorBox = that.elemColorBox.find('.' + PICKER_TRIG_SPAN)
,elemPickerInput = that.elemPicker.find('.' + PICKER_INPUT)
,e = elemColorBox[0]
,bgcolor = e.style.backgroundColor;
//判断是否有背景颜色
if(bgcolor){
//转化成hsb格式
var hsb = RGBToHSB(RGBSTo(bgcolor))
,type = elemColorBox.attr('lay-type');
//同步滑块的位置及颜色选择器的选择
that.select(hsb.h, hsb.s, hsb.b);
//如果格式要求为rgb
if(type === 'torgb'){
elemPickerInput.find('input').val(bgcolor);
};
//如果格式要求为rgba
if(type === 'rgba'){
var rgb = RGBSTo(bgcolor);
//如果开启透明度而没有设置,则给默认值
if((bgcolor.match(/[0-9]{1,3}/g) || []).length == 3){
elemPickerInput.find('input').val('rgba('+ rgb.r +', '+ rgb.g +', '+ rgb.b +', 1)');
that.elemPicker.find('.'+ PICKER_ALPHA_SLIDER).css("left", 280);
} else {
elemPickerInput.find('input').val(bgcolor);
var left = bgcolor.slice(bgcolor.lastIndexOf(",") + 1, bgcolor.length - 1) * 280;
that.elemPicker.find('.'+ PICKER_ALPHA_SLIDER).css("left", left);
};
//设置span背景色
that.elemPicker.find('.'+ PICKER_ALPHA_BG)[0].style.background = 'linear-gradient(to right, rgba('+ rgb.r +', '+ rgb.g +', '+ rgb.b +', 0), rgb('+ rgb.r +', '+ rgb.g +', '+ rgb.b +'))';
};
}else{
//如果没有背景颜色则默认到最初始的状态
that.select(0,100,100);
elemPickerInput.find('input').val("");
that.elemPicker.find('.'+ PICKER_ALPHA_BG)[0].style.background = '';
that.elemPicker.find('.'+ PICKER_ALPHA_SLIDER).css("left", 280);
}
};
//颜色选择器滑动 / 点击
Class.prototype.side = function(){
var that = this
,options = that.config
,span = that.elemColorBox.find('.' + PICKER_TRIG_SPAN)
,type = span.attr('lay-type')
,side = that.elemPicker.find('.' + PICKER_SIDE)
,slider = that.elemPicker.find('.' + PICKER_SIDE_SLIDER)
,basis = that.elemPicker.find('.' + PICKER_BASIS)
,choose = that.elemPicker.find('.' + PICKER_BASIS_CUR)
,alphacolor = that.elemPicker.find('.' + PICKER_ALPHA_BG)
,alphaslider = that.elemPicker.find('.' + PICKER_ALPHA_SLIDER)
,_h = slider[0].offsetTop/180*360
,_b = 100 - (choose[0].offsetTop + 3)/180*100
,_s = (choose[0].offsetLeft + 3)/260*100
,_a = Math.round(alphaslider[0].offsetLeft/280*100)/100
,i = that.elemColorBox.find('.' + PICKER_TRIG_I)
,pre = that.elemPicker.find('.layui-colorpicker-pre').children('div')
,change = function(x,y,z,a){
that.select(x, y, z);
var rgb = HSBToRGB({h:x, s:y, b:z});
i.addClass(ICON_PICKER_DOWN).removeClass(ICON_PICKER_CLOSE);
span[0].style.background = 'rgb('+ rgb.r +', '+ rgb.g +', '+ rgb.b +')';
if(type === 'torgb'){
that.elemPicker.find('.' + PICKER_INPUT).find('input').val('rgb('+ rgb.r +', '+ rgb.g +', '+ rgb.b +')');
};
if(type === 'rgba'){
var left = 0;
left = a * 280;
alphaslider.css("left", left);
that.elemPicker.find('.' + PICKER_INPUT).find('input').val('rgba('+ rgb.r +', '+ rgb.g +', '+ rgb.b +', '+ a +')');
span[0].style.background = 'rgba('+ rgb.r +', '+ rgb.g +', '+ rgb.b +', '+ a +')';
alphacolor[0].style.background = 'linear-gradient(to right, rgba('+ rgb.r +', '+ rgb.g +', '+ rgb.b +', 0), rgb('+ rgb.r +', '+ rgb.g +', '+ rgb.b +'))'
};
//回调更改的颜色
options.change && options.change(that.elemPicker.find('.' + PICKER_INPUT).find('input').val());
}
//拖拽元素
,elemMove = $(['<div class="layui-auxiliar-moving" id="LAY-colorpicker-moving"></div>'].join(''))
,createMoveElem = function(call){
$('#LAY-colorpicker-moving')[0] || $('body').append(elemMove);
elemMove.on('mousemove', call);
elemMove.on('mouseup', function(){
elemMove.remove();
}).on('mouseleave', function(){
elemMove.remove();
});
};
//右侧主色选择
slider.on('mousedown', function(e){
var oldtop = this.offsetTop
,oldy = e.clientY;
var move = function(e){
var top = oldtop + (e.clientY - oldy)
,maxh = side[0].offsetHeight;
if(top < 0)top = 0;
if(top > maxh)top = maxh;
var h = top/180*360;
_h = h;
change(h, _s, _b, _a);
e.preventDefault();
};
createMoveElem(move);
//layui.stope(e);
e.preventDefault();
});
side.on('click', function(e){
var top = e.clientY - $(this).offset().top;
if(top < 0)top = 0;
if(top > this.offsetHeight)top = this.offsetHeight;
var h = top/180*360;
_h = h;
change(h, _s, _b, _a);
e.preventDefault();
});
//中间小圆点颜色选择
choose.on('mousedown', function(e){
var oldtop = this.offsetTop
,oldleft = this.offsetLeft
,oldy = e.clientY
,oldx = e.clientX;
var move = function(e){
var top = oldtop + (e.clientY - oldy)
,left = oldleft + (e.clientX - oldx)
,maxh = basis[0].offsetHeight - 3
,maxw = basis[0].offsetWidth - 3;
if(top < -3)top = -3;
if(top > maxh)top = maxh;
if(left < -3)left = -3;
if(left > maxw)left = maxw;
var s = (left + 3)/260*100
,b = 100 - (top + 3)/180*100;
_b = b;
_s = s;
change(_h, s, b, _a);
e.preventDefault();
};
layui.stope(e);
createMoveElem(move);
e.preventDefault();
});
basis.on('mousedown', function(e){
var top = e.clientY - $(this).offset().top - 3 + $win.scrollTop()
,left = e.clientX - $(this).offset().left - 3 + $win.scrollLeft()
if(top < -3)top = -3;
if(top > this.offsetHeight - 3)top = this.offsetHeight - 3;
if(left < -3)left = -3;
if(left > this.offsetWidth - 3)left = this.offsetWidth - 3;
var s = (left + 3)/260*100
,b = 100 - (top + 3)/180*100;
_b = b;
_s = s;
change(_h, s, b, _a);
layui.stope(e);
e.preventDefault();
choose.trigger(e, 'mousedown');
});
//底部透明度选择
alphaslider.on('mousedown', function(e){
var oldleft = this.offsetLeft
,oldx = e.clientX;
var move = function(e){
var left = oldleft + (e.clientX - oldx)
,maxw = alphacolor[0].offsetWidth;
if(left < 0)left = 0;
if(left > maxw)left = maxw;
var a = Math.round(left /280*100) /100;
_a = a;
change(_h, _s, _b, a);
e.preventDefault();
};
createMoveElem(move);
e.preventDefault();
});
alphacolor.on('click', function(e){
var left = e.clientX - $(this).offset().left
if(left < 0)left = 0;
if(left > this.offsetWidth)left = this.offsetWidth;
var a = Math.round(left /280*100) /100;
_a = a;
change(_h, _s, _b, a);
e.preventDefault();
});
//预定义颜色选择
pre.each(function(){
$(this).on('click', function(){
$(this).parent('.layui-colorpicker-pre').addClass('selected').siblings().removeClass('selected');
var color = this.style.backgroundColor
,hsb = RGBToHSB(RGBSTo(color))
,a = color.slice(color.lastIndexOf(",") + 1, color.length - 1),left;
_h = hsb.h;
_s = hsb.s;
_b = hsb.b;
if((color.match(/[0-9]{1,3}/g) || []).length == 3) a = 1;
_a = a;
left = a * 280;
change(hsb.h, hsb.s, hsb.b, a);
})
});
};
//颜色选择器hsb转换
Class.prototype.select = function(h, s, b, type){
var that = this
,options = that.config
,hex = HSBToHEX({h:h, s:100, b:100})
,color = HSBToHEX({h:h, s:s, b:b})
,sidetop = h/360*180
,top = 180 - b/100*180 - 3
,left = s/100*260 - 3;
that.elemPicker.find('.' + PICKER_SIDE_SLIDER).css("top", sidetop); //滑块的top
that.elemPicker.find('.' + PICKER_BASIS)[0].style.background = '#' + hex; //颜色选择器的背景
//选择器的top left
that.elemPicker.find('.' + PICKER_BASIS_CUR).css({
"top": top
,"left": left
});
if(type === 'change') return;
//选中的颜色
that.elemPicker.find('.' + PICKER_INPUT).find('input').val('#' + color);
};
Class.prototype.pickerEvents = function(){
var that = this
,options = that.config
,elemColorBoxSpan = that.elemColorBox.find('.' + PICKER_TRIG_SPAN) //颜色盒子
,elemPickerInput = that.elemPicker.find('.' + PICKER_INPUT + ' input') //颜色选择器表单
,pickerEvents = {
//清空
clear: function(othis){
elemColorBoxSpan[0].style.background ='';
that.elemColorBox.find('.' + PICKER_TRIG_I).removeClass(ICON_PICKER_DOWN).addClass(ICON_PICKER_CLOSE);
that.color = '';
options.done && options.done('');
that.removePicker();
}
//确认
,confirm: function(othis, change){
var value = elemPickerInput.val()
,colorValue = value
,hsb = {};
if(value.indexOf(',') > -1){
hsb = RGBToHSB(RGBSTo(value));
that.select(hsb.h, hsb.s, hsb.b);
elemColorBoxSpan[0].style.background = (colorValue = '#' + HSBToHEX(hsb));
if((value.match(/[0-9]{1,3}/g) || []).length > 3 && elemColorBoxSpan.attr('lay-type') === 'rgba'){
var left = value.slice(value.lastIndexOf(",") + 1, value.length - 1) * 280;
that.elemPicker.find('.' + PICKER_ALPHA_SLIDER).css("left", left);
elemColorBoxSpan[0].style.background = value;
colorValue = value;
};
} else {
hsb = HEXToHSB(value);
elemColorBoxSpan[0].style.background = (colorValue = '#' + HSBToHEX(hsb));
that.elemColorBox.find('.' + PICKER_TRIG_I).removeClass(ICON_PICKER_CLOSE).addClass(ICON_PICKER_DOWN);
};
if(change === 'change'){
that.select(hsb.h, hsb.s, hsb.b, change);
options.change && options.change(colorValue);
return;
}
that.color = value;
options.done && options.done(value);
that.removePicker();
}
};
//选择器面板点击事件
that.elemPicker.on('click', '*[colorpicker-events]', function(){
var othis = $(this)
,attrEvent = othis.attr('colorpicker-events');
pickerEvents[attrEvent] && pickerEvents[attrEvent].call(this, othis);
});
//输入框事件
elemPickerInput.on('keyup', function(e){
var othis = $(this)
pickerEvents.confirm.call(this, othis, e.keyCode === 13 ? null : 'change');
});
}
//颜色选择器输入
Class.prototype.events = function(){
var that = this
,options = that.config
,elemColorBoxSpan = that.elemColorBox.find('.' + PICKER_TRIG_SPAN)
//弹出颜色选择器
that.elemColorBox.on('click' , function(){
that.renderPicker();
if($(ELEM_MAIN)[0]){
that.val();
that.side();
};
});
if(!options.elem[0] || that.elemColorBox[0].eventHandler) return;
//绑定关闭控件事件
$doc.on(clickOrMousedown, function(e){
//如果点击的元素是颜色框
if($(e.target).hasClass(ELEM)
|| $(e.target).parents('.'+ELEM)[0]
) return;
//如果点击的元素是选择器
if($(e.target).hasClass(ELEM_MAIN.replace(/\./g, ''))
|| $(e.target).parents(ELEM_MAIN)[0]
) return;
if(!that.elemPicker) return;
if(that.color){
var hsb = RGBToHSB(RGBSTo(that.color));
that.select(hsb.h, hsb.s, hsb.b);
} else {
that.elemColorBox.find('.' + PICKER_TRIG_I).removeClass(ICON_PICKER_DOWN).addClass(ICON_PICKER_CLOSE);
}
elemColorBoxSpan[0].style.background = that.color || '';
that.removePicker();
});
//自适应定位
$win.on('resize', function(){
if(!that.elemPicker || !$(ELEM_MAIN)[0]){
return false;
}
that.position();
});
that.elemColorBox[0].eventHandler = true;
};
//核心入口
colorpicker.render = function(options){
var inst = new Class(options);
return thisColorPicker.call(inst);
};
exports(MOD_NAME, colorpicker);
});