receive.js
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/**
* 消息接收模块
* @author LQ <qi.li@yoho.cn>
* @date 2017/03/20
*/
var socketConf = require('./config');
var assetsPath = $('input[name=assetsPrefix]').val() || '';
/**
* 表情图片路径解析
* @param path
* @returns {*}
*/
var _emjPath = function(path) {
var reg = /src="(\d{3}).gif"/g;
var subFolder = '/img/service/emoji/';
var prePath = ['src="', assetsPath, subFolder].join('');
if (typeof path !== 'string') {
return '';
}
return path.replace(reg, prePath + '$1.gif"');
};
/**
* 用户头像处理
* @param url
* @returns {*}
*/
var _userAvatar = function(url, mode, w, h) {
if (!url || typeof url !== 'string') {
return assetsPath + socketConf.defaultUserHead;
}
return url.replace(/\{mode\}/, mode || 2)
.replace(/\{width\}/, w || 100)
.replace(/\{height\}/, h || 100);
};
/**
* 图片添加img标签
* @param url 图片链接
* @private
*/
var _imgMsg = function(url) {
return '<img class="img-msg" src="' + url + '">';
};
/**
* 图片标签添加
* @param msg 内部消息体
* @private
*/
var _createImgEl = function(msg) {
if (msg.type === 2) {
msg.newContent = _imgMsg(msg.content);
}
};
/**
* 接收消息体预处理
* @param rec 接收对象
*/
exports.preProcess = function(rec) {
var chatMsg = rec.chatMessage;
var allTypes = socketConf.recType;
var recType = rec.type;
switch (recType) {
case allTypes.CU_SEND:
rec.userHead = _userAvatar(rec.userHead);
chatMsg.newContent = _emjPath(chatMsg.newContent);
_createImgEl(chatMsg);
break;
case allTypes.CS_SEND:
chatMsg.newContent = _emjPath(chatMsg.newContent);
_createImgEl(chatMsg);
break;
default:
break;
}
};