/** common.js By Beginner Emain:zheng_jinfan@126.com HomePage:http://www.zhengjinfan.cn */
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layui.define(['jquery'], function(exports) {
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"use strict";
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var jQuery = layui.jquery;
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/**
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* jquery.citys.js 1.0
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* http://jquerywidget.com
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*/
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;
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(function($) {
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$.support.cors = true;
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$.fn.citys = function(parameter, getApi) {
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if(typeof parameter == 'function') { //重载
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getApi = parameter;
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parameter = {};
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} else {
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parameter = parameter || {};
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getApi = getApi || function() {};
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}
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var defaults = {
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dataUrl: 'http://passer-by.com/data_location/list.json', //数据库地址
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dataType: 'json', //数据库类型:'json'或'jsonp'
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provinceField: 'province', //省份字段名
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cityField: 'city', //城市字段名
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areaField: 'area', //地区字段名
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code: 0, //地区编码
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province: 0, //省份,可以为地区编码或者名称
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city: 0, //城市,可以为地区编码或者名称
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area: 0, //地区,可以为地区编码或者名称
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required: true, //是否必须选一个
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nodata: 'hidden', //当无数据时的表现形式:'hidden'隐藏,'disabled'禁用,为空不做任何处理
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onChange: function() {} //地区切换时触发,回调函数传入地区数据
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};
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var options = $.extend({}, defaults, parameter);
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return this.each(function() {
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//对象定义
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var _api = {};
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var $this = $(this);
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var $province = $this.find('select[name="' + options.provinceField + '"]'),
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$city = $this.find('select[name="' + options.cityField + '"]'),
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$area = $this.find('select[name="' + options.areaField + '"]');
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$.ajax({
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url: options.dataUrl,
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type: 'GET',
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crossDomain: true,
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dataType: options.dataType,
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jsonpCallback: 'jsonp_location',
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success: function(data) {
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var province, city, area, hasCity;
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if(options.code) { //如果设置地区编码，则忽略单独设置的信息
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var c = options.code - options.code % 1e4;
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if(data[c]) {
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options.province = c;
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}
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c = options.code - (options.code % 1e4 ? options.code % 1e2 : options.code);
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if(data[c]) {
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options.city = c;
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}
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c = options.code % 1e2 ? options.code : 0;
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if(data[c]) {
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options.area = c;
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}
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}
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var updateData = function() {
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province = {}, city = {}, area = {};
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hasCity = false; //判断是非有地级城市
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for(code in data) {
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if(!(code % 1e4)) { //获取所有的省级行政单位
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province[code] = data[code];
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if(options.required && !options.province) {
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if(options.city && !(options.city % 1e4)) { //省未填，并判断为直辖市
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options.province = options.city;
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} else {
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options.province = code;
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}
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} else if(data[code].indexOf(options.province) > -1) {
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options.province = isNaN(options.province) ? code : options.province;
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}
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} else {
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var p = code - options.province;
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if(options.province && p > 0 && p < 1e4) { //同省的城市或地区
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if(!(code % 100)) {
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hasCity = true;
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city[code] = data[code];
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if(options.required && !options.city) {
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options.city = code;
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} else if(data[code].indexOf(options.city) > -1) {
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options.city = isNaN(options.city) ? code : options.city;
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}
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} else if(p > 9000) { //省直辖县级行政单位
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city[code] = data[code];
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} else if(hasCity) { //非直辖市
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var c = code - options.city;
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if(options.city && c > 0 && c < 100) { //同个城市的地区
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area[code] = data[code];
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if(options.required && !options.area) {
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options.area = code;
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} else if(data[code].indexOf(options.area) > -1) {
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options.area = isNaN(options.area) ? code : options.area;
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}
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}
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} else {
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city[code] = data[code]; //直辖市
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if(options.area) {
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options.city = options.area;
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options.area = '';
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}
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if(options.required && !options.city) {
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options.city = code;
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} else if(data[code].indexOf(options.city) > -1) {
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options.city = isNaN(options.city) ? code : options.city;
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}
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}
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}
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}
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}
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};
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var format = {
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province: function() {
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$province.empty();
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if(!options.required) {
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$province.append('<option value=""> - 请选择 - </option>');
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}
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for(i in province) {
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$province.append('<option value="' + i + '">' + province[i] + '</option>');
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}
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if(options.province) {
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$province.val(options.province);
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}
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this.city();
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},
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city: function() {
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$city.empty();
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if(!options.required) {
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$city.append('<option value=""> - 请选择 - </option>');
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}
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if(options.nodata == 'disabled') {
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$city.prop('disabled', $.isEmptyObject(city));
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} else if(options.nodata == 'hidden') {
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$city.css('display', $.isEmptyObject(city) ? 'none' : '');
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}
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for(i in city) {
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$city.append('<option value="' + i + '">' + city[i] + '</option>');
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}
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if(options.city) {
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$city.val(options.city);
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}
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this.area();
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},
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area: function() {
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$area.empty();
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if(!hasCity) {
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$area.css('display', 'none');
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} else {
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$area.css('display', '');
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if(!options.required) {
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$area.append('<option value=""> - 请选择 - </option>');
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}
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if(options.nodata == 'disabled') {
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$area.prop('disabled', $.isEmptyObject(area));
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} else if(options.nodata == 'hidden') {
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$area.css('display', $.isEmptyObject(area) ? 'none' : '');
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}
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for(i in area) {
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$area.append('<option value="' + i + '">' + area[i] + '</option>');
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}
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if(options.area) {
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$area.val(options.area);
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}
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}
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}
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};
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//获取当前地理信息
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_api.getInfo = function() {
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var status = {
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direct: !hasCity,
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province: data[options.province] || '',
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city: data[options.city] || '',
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area: data[options.area] || '',
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code: options.area || options.city || options.province
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};
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return status;
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};
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//事件绑定
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$province.on('change', function() {
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options.province = $(this).val();
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options.city = 0;
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options.area = 0;
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updateData();
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format.city();
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options.onChange(_api.getInfo());
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});
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$city.on('change', function() {
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options.city = $(this).val();
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options.area = 0;
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updateData();
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format.area();
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options.onChange(_api.getInfo());
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});
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$area.on('change', function() {
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options.area = $(this).val();
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options.onChange(_api.getInfo());
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});
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//初始化
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updateData();
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format.province();
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getApi(_api);
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}
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});
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});
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};
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})(jQuery);
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exports('city', null);
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});
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