462 lines
13 KiB
JavaScript
462 lines
13 KiB
JavaScript
/**
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* 微信小程序JavaScriptSDK
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*
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* @version 1.0
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* @date 2017-01-10
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* @author jaysonzhou@tencent.com
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*/
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var ERROR_CONF = {
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KEY_ERR: 311,
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KEY_ERR_MSG: 'key格式错误',
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PARAM_ERR: 310,
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PARAM_ERR_MSG: '请求参数信息有误',
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SYSTEM_ERR: 600,
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SYSTEM_ERR_MSG: '系统错误',
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WX_ERR_CODE: 1000,
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WX_OK_CODE: 200
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};
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var BASE_URL = 'https://apis.map.qq.com/ws/';
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var URL_SEARCH = BASE_URL + 'place/v1/search';
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var URL_SUGGESTION = BASE_URL + 'place/v1/suggestion';
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var URL_GET_GEOCODER = BASE_URL + 'geocoder/v1/';
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var URL_CITY_LIST = BASE_URL + 'district/v1/list';
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var URL_AREA_LIST = BASE_URL + 'district/v1/getchildren';
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var URL_DISTANCE = BASE_URL + 'distance/v1/';
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var Utils = {
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/**
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* 得到终点query字符串
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* @param {Array|String} 检索数据
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*/
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location2query(data) {
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if (typeof data == 'string') {
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return data;
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}
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var query = '';
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for (var i = 0; i < data.length; i++) {
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var d = data[i];
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if (!!query) {
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query += ';';
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}
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if (d.location) {
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query = query + d.location.lat + ',' + d.location.lng;
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}
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if (d.latitude && d.longitude) {
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query = query + d.latitude + ',' + d.longitude;
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}
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}
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return query;
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},
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/**
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* 使用微信接口进行定位
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*/
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getWXLocation(success, fail, complete) {
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wx.getLocation({
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type: 'gcj02',
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success: success,
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fail: fail,
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complete: complete
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});
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},
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/**
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* 获取location参数
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*/
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getLocationParam(location) {
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if (typeof location == 'string') {
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var locationArr = location.split(',');
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if (locationArr.length === 2) {
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location = {
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latitude: location.split(',')[0],
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longitude: location.split(',')[1]
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};
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} else {
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location = {};
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}
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}
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return location;
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},
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/**
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* 回调函数默认处理
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*/
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polyfillParam(param) {
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param.success = param.success || function () { };
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param.fail = param.fail || function () { };
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param.complete = param.complete || function () { };
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},
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/**
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* 验证param对应的key值是否为空
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*
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* @param {Object} param 接口参数
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* @param {String} key 对应参数的key
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*/
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checkParamKeyEmpty(param, key) {
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if (!param[key]) {
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var errconf = this.buildErrorConfig(ERROR_CONF.PARAM_ERR, ERROR_CONF.PARAM_ERR_MSG + key +'参数格式有误');
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param.fail(errconf);
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param.complete(errconf);
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return true;
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}
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return false;
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},
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/**
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* 验证参数中是否存在检索词keyword
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*
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* @param {Object} param 接口参数
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*/
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checkKeyword(param){
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return !this.checkParamKeyEmpty(param, 'keyword');
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},
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/**
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* 验证location值
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*
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* @param {Object} param 接口参数
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*/
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checkLocation(param) {
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var location = this.getLocationParam(param.location);
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if (!location || !location.latitude || !location.longitude) {
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var errconf = this.buildErrorConfig(ERROR_CONF.PARAM_ERR, ERROR_CONF.PARAM_ERR_MSG + ' location参数格式有误')
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param.fail(errconf);
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param.complete(errconf);
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return false;
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}
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return true;
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},
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/**
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* 构造错误数据结构
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* @param {Number} errCode 错误码
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* @param {Number} errMsg 错误描述
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*/
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buildErrorConfig(errCode, errMsg) {
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return {
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status: errCode,
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message: errMsg
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};
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},
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/**
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* 构造微信请求参数，公共属性处理
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*
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* @param {Object} param 接口参数
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* @param {Object} param 配置项
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*/
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buildWxRequestConfig(param, options) {
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var that = this;
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options.header = { "content-type": "application/json" };
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options.method = 'GET';
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options.success = function (res) {
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var data = res.data;
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if (data.status === 0) {
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param.success(data);
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} else {
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param.fail(data);
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}
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};
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options.fail = function (res) {
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res.statusCode = ERROR_CONF.WX_ERR_CODE;
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param.fail(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, result.errMsg));
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};
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options.complete = function (res) {
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var statusCode = +res.statusCode;
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switch(statusCode) {
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case ERROR_CONF.WX_ERR_CODE: {
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param.complete(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg));
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break;
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}
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case ERROR_CONF.WX_OK_CODE: {
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var data = res.data;
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if (data.status === 0) {
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param.complete(data);
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} else {
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param.complete(that.buildErrorConfig(data.status, data.message));
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}
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break;
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}
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default:{
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param.complete(that.buildErrorConfig(ERROR_CONF.SYSTEM_ERR, ERROR_CONF.SYSTEM_ERR_MSG));
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}
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}
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}
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return options;
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},
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/**
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* 处理用户参数是否传入坐标进行不同的处理
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*/
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locationProcess(param, locationsuccess, locationfail, locationcomplete) {
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var that = this;
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locationfail = locationfail || function (res) {
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res.statusCode = ERROR_CONF.WX_ERR_CODE;
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param.fail(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg));
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};
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locationcomplete = locationcomplete || function (res) {
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if (res.statusCode == ERROR_CONF.WX_ERR_CODE) {
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param.complete(that.buildErrorConfig(ERROR_CONF.WX_ERR_CODE, res.errMsg));
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}
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};
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if (!param.location) {
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that.getWXLocation(locationsuccess, locationfail, locationcomplete);
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} else if (that.checkLocation(param)) {
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var location = Utils.getLocationParam(param.location);
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locationsuccess(location);
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}
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}
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}
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class QQMapWX {
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/**
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* 构造函数
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*
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* @param {Object} options 接口参数,key 为必选参数
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*/
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constructor(options) {
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if (!options.key) {
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throw Error('key值不能为空');
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}
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this.key = options.key;
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}
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/**
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* POI周边检索
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*
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* @param {Object} options 接口参数对象
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*
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* 参数对象结构可以参考
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* @see http://lbs.qq.com/webservice_v1/guide-search.html
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*/
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search(options) {
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var that = this;
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options = options || {};
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Utils.polyfillParam(options);
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if (!Utils.checkKeyword(options)) {
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return;
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}
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var requestParam = {
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keyword: options.keyword,
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orderby: options.orderby || '_distance',
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page_size: options.page_size || 10,
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page_index: options.page_index || 1,
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output: 'json',
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key: that.key
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};
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if (options.address_format) {
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requestParam.address_format = options.address_format;
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}
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if (options.filter) {
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requestParam.filter = options.filter;
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}
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var distance = options.distance || "1000";
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var auto_extend = options.auto_extend || 1;
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var locationsuccess = function (result) {
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requestParam.boundary = "nearby(" + result.latitude + "," + result.longitude + "," + distance + "," + auto_extend +")";
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wx.request(Utils.buildWxRequestConfig(options, {
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url: URL_SEARCH,
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data: requestParam
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}));
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}
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Utils.locationProcess(options, locationsuccess);
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}
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/**
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* sug模糊检索
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*
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* @param {Object} options 接口参数对象
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*
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* 参数对象结构可以参考
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* http://lbs.qq.com/webservice_v1/guide-suggestion.html
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*/
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getSuggestion(options) {
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var that = this;
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options = options || {};
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Utils.polyfillParam(options);
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if (!Utils.checkKeyword(options)) {
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return;
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}
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var requestParam = {
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keyword: options.keyword,
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region: options.region || '全国',
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region_fix: options.region_fix || 0,
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policy: options.policy || 0,
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output: 'json',
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key: that.key
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};
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wx.request(Utils.buildWxRequestConfig(options, {
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url: URL_SUGGESTION,
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data: requestParam
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}));
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}
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/**
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* 逆地址解析
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*
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* @param {Object} options 接口参数对象
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*
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* 请求参数结构可以参考
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* http://lbs.qq.com/webservice_v1/guide-gcoder.html
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*/
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reverseGeocoder(options) {
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var that = this;
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options = options || {};
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Utils.polyfillParam(options);
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var requestParam = {
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coord_type: options.coord_type || 5,
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get_poi: options.get_poi || 0,
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output: 'json',
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key: that.key
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};
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if (options.poi_options) {
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requestParam.poi_options = options.poi_options
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}
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var locationsuccess = function (result) {
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requestParam.location = result.latitude + ',' + result.longitude;
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wx.request(Utils.buildWxRequestConfig(options, {
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url: URL_GET_GEOCODER,
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data: requestParam
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}));
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};
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Utils.locationProcess(options, locationsuccess);
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}
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/**
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* 地址解析
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*
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* @param {Object} options 接口参数对象
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*
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* 请求参数结构可以参考
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* http://lbs.qq.com/webservice_v1/guide-geocoder.html
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*/
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geocoder(options) {
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var that = this;
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options = options || {};
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Utils.polyfillParam(options);
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if (Utils.checkParamKeyEmpty(options, 'address')) {
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return;
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}
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var requestParam = {
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address: options.address,
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output: 'json',
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key: that.key
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};
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wx.request(Utils.buildWxRequestConfig(options, {
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url: URL_GET_GEOCODER,
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data: requestParam
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}));
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}
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/**
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* 获取城市列表
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*
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* @param {Object} options 接口参数对象
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*
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* 请求参数结构可以参考
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* http://lbs.qq.com/webservice_v1/guide-region.html
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*/
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getCityList(options) {
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var that = this;
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options = options || {};
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Utils.polyfillParam(options);
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var requestParam = {
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output: 'json',
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key: that.key
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};
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wx.request(Utils.buildWxRequestConfig(options, {
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url: URL_CITY_LIST,
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data: requestParam
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}));
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}
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/**
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* 获取对应城市ID的区县列表
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*
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* @param {Object} options 接口参数对象
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*
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* 请求参数结构可以参考
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* http://lbs.qq.com/webservice_v1/guide-region.html
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*/
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getDistrictByCityId(options) {
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var that = this;
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options = options || {};
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Utils.polyfillParam(options);
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if (Utils.checkParamKeyEmpty(options, 'id')) {
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return;
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}
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var requestParam = {
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id: options.id || '',
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output: 'json',
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key: that.key
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};
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wx.request(Utils.buildWxRequestConfig(options, {
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url: URL_AREA_LIST,
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data: requestParam
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}));
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}
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/**
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* 用于单起点到多终点的路线距离(非直线距离)计算：
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* 支持两种距离计算方式：步行和驾车。
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* 起点到终点最大限制直线距离10公里。
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*
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* @param {Object} options 接口参数对象
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*
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* 请求参数结构可以参考
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* http://lbs.qq.com/webservice_v1/guide-distance.html
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*/
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calculateDistance(options) {
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var that = this;
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options = options || {};
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Utils.polyfillParam(options);
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if (Utils.checkParamKeyEmpty(options, 'to')) {
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return;
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}
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var requestParam = {
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mode: options.mode || 'walking',
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to: Utils.location2query(options.to),
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output: 'json',
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key: that.key
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};
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var locationsuccess = function (result) {
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requestParam.from = result.latitude + ',' + result.longitude;
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wx.request(Utils.buildWxRequestConfig(options, {
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url: URL_DISTANCE,
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data: requestParam
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}));
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}
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if (options.from) {
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options.location = options.from;
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}
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Utils.locationProcess(options, locationsuccess);
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}
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}
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module.exports = QQMapWX; |