/*!
@Title: Layui
@Description:经典模块化前端框架
@Site: www.layui.com
@Author: 贤心
@License:LGPL
*/
//开头的分号,意在防止与其他js文件合并压缩时,由于上一个文件没有用分号结尾而产生问题
//常见的(多了一对括号),调用匿名函数:(function() {})()
//另外一种!function(){}()前面加上一个布尔运算符(只多了一个感叹号),就是表达式了,将执行后面的代码,也就合法实现调用
;!function(win){
“use strict”;//严格模式
var Lay = function(){
this.v = ‘1.0.0’; //版本号
};
Lay.fn = Lay.prototype;
var doc = document, config = Lay.fn.cache = {},
//获取layui所在目录
getPath = function(){
var js = doc.scripts, jsPath = js[js.length - 1].src;
return jsPath.substring(0, jsPath.lastIndexOf(’/’) + 1);
}(),
//异常提示
error = function(msg){
win.console && console.error && console.error('Layui hint: ’ + msg);
},
isOpera = typeof opera !== ‘undefined’ && opera.toString() === ‘[object Opera]’,
//内置模块
modules = {
layer: ‘modules/layer’ //弹层
,laydate: ‘modules/laydate’ //日期
,laypage: ‘modules/laypage’ //分页
,laytpl: ‘modules/laytpl’ //模板引擎
,layim: ‘modules/layim’ //web通讯
,layedit: ‘modules/layedit’ //富文本编辑器
,form: ‘modules/form’ //表单集
,upload: ‘modules/upload’ //上传
,tree: ‘modules/tree’ //树结构
,slide: ‘modules/slide’ //轮播/滚动
,table: ‘modules/table’ //富表格
,element: ‘modules/element’ //常用元素操作
,util: ‘modules/util’ //工具块
,flow: ‘modules/flow’ //流加载
,code: ‘modules/code’ //代码修饰器
,single: ‘modules/single’ //单页应用
,mobile: ‘modules/mobile’ //移动大模块
,jquery: ‘lib/jquery’ //DOM库(第三方)
,‘layui.all’: ‘dest/layui.all’ //PC模块合并版
};
config.modules = {}; //记录模块物理路径
config.status = {}; //记录模块加载状态
config.timeout = 10; //符合规范的模块请求最长等待秒数
config.event = {}; //记录模块自定义事件
//定义模块
Lay.fn.define = function(deps, callback){
var that = this
,type = typeof deps === ‘function’
,mods = function(){
typeof callback === ‘function’ && callback(function(app, exports){
layui[app] = exports;
config.status[app] = true;
});
return this;
};
type && (
callback = deps,
deps = []
);
if(layui[‘layui.all’]){
return mods.call(that);
};
that.use(deps, mods);
return that;
};
//使用特定模块
Lay.fn.use = function(apps, callback, exports){
var that = this, dir = config.dir = config.dir ? config.dir : getPath;
var head = doc.getElementsByTagName(‘head’)[0];
apps = typeof apps === ‘string’ ? [apps] : apps;
//如果页面已经存在jQuery1.7+库且所定义的模块依赖jQuery,则不加载内部jquery模块
if(window.jQuery && jQuery.fn.on){
that.each(apps, function(index, item){
if(item === ‘jquery’){
apps.splice(index, 1);
}
});
layui.jquery = jQuery;
}
var item = apps[0], timeout = 0;
exports = exports || [];
//静态资源host
config.host = config.host || (dir.match(///([\s\S]+?)//)||[’//’+ location.host +’/’])[0];
if(apps.length === 0){
return callback();
}
//加载完毕
function onScriptLoad(e, url){
var readyRegExp = navigator.platform === ‘PLaySTATION 3’ ? /^complete / : / ( c o m p l e t e ∣ l o a d e d ) / : /^(complete|loaded) /:/(complete∣loaded)/
if (e.type === ‘load’ || (readyRegExp.test((e.currentTarget || e.srcElement).readyState))) {
config.modules[item] = url;
head.removeChild(node);
(function poll() {
if(++timeout > config.timeout * 1000 / 4){
return error(item + ’ is not a valid module’);
};
config.status[item] ? onCallback() : setTimeout(poll, 4);
}());
}
}
//加载模块
var node = doc.createElement(‘script’), url = (
modules[item] ? (dir + ‘lay/’) : (config.base || ‘’)
) + (that.modules[item] || item) + ‘.js’;
node.async = true;
node.charset = ‘utf-8’;
node.src = url + function(){
var version = config.version === true
? (config.v || (new Date()).getTime())
: (config.version||’’);
return version ? (’?v=’ + version) : ‘’;
}();
//首次加载
if(!config.modules[item]){
head.appendChild(node);
if(node.attachEvent && !(node.attachEvent.toString && node.attachEvent.toString().indexOf(’[native code’) < 0) && !isOpera){
node.attachEvent(‘onreadystatechange’, function(e){
onScriptLoad(e, url);
});
} else {
node.addEventListener(‘load’, function(e){
onScriptLoad(e, url);
}, false);
}
} else {
(function poll() {
if(++timeout > config.timeout * 1000 / 4){
return error(item + ’ is not a valid module’);
};
(typeof config.modules[item] === ‘string’ && config.status[item])
? onCallback()
: setTimeout(poll, 4);
}());
}
config.modules[item] = url;
//回调
function onCallback(){
exports.push(layui[item]);
apps.length > 1 ?
that.use(apps.slice(1), callback, exports)
: ( typeof callback === ‘function’ && callback.apply(layui, exports) );
}
return that;
};
//使用打包好的完整Layui库
Lay.fn.all = function(callback){
this.use(‘layui.all’, callback)
return this;
};
//获取节点的style属性值
Lay.fn.getStyle = function(node, name){
var style = node.currentStyle ? node.currentStyle : win.getComputedStyle(node, null);
return stylestyle.getPropertyValue ? ‘getPropertyValue’ : ‘getAttribute’;
};
//css外部加载器
Lay.fn.link = function(href, fn, cssname){
var that = this, link = doc.createElement(‘link’);
var head = doc.getElementsByTagName(‘head’)[0];
if(typeof fn === ‘string’) cssname = fn;
var app = (cssname || href).replace(/.|//g, ‘’);
var id = link.id = ‘layuicss-’+app, timeout = 0;
link.rel = ‘stylesheet’;
link.href = href + (config.debug ? ‘?v=’+new Date().getTime() : ‘’);
link.media = ‘all’;
if(!doc.getElementById(id)){
head.appendChild(link);
}
if(typeof fn !== ‘function’) return ;
//轮询css是否加载完毕
(function poll() {
if(++timeout > config.timeout * 1000 / 100){
return error(href + ’ timeout’);
};
parseInt(that.getStyle(doc.getElementById(id), ‘width’)) === 1989 ? function(){
fn();
}() : setTimeout(poll, 100);
}());
};
//css内部加载器
Lay.fn.addcss = function(firename, fn, cssname){
layui.link(config.dir + ‘css/’ + firename, fn, cssname);
};
//图片预加载
Lay.fn.img = function(url, callback, error) {
var img = new Image();
img.src = url;
if(img.complete){
return callback(img);
}
img.onload = function(){
img.onload = null;
callback(img);
};
img.onerror = function(e){
img.onerror = null;
error(e);
};
};
//全局配置
Lay.fn.config = function(options){
options = options || {};
for(var key in options){
config[key] = options[key];
}
return this;
};
//记录全部模块
Lay.fn.modules = function(){
var clone = {};
for(var o in modules){
clone[o] = modules[o];
}
return clone;
}();
//拓展模块
Lay.fn.extend = function(options){
var that = this;
//验证模块是否被占用
options = options || {};
for(var o in options){
if(that[o] || that.modules[o]){
error(’\u6A21\u5757\u540D ‘+ o +’ \u5DF2\u88AB\u5360\u7528’);
} else {
that.modules[o] = options[o];
}
}
return that;
};
//路由
Lay.fn.router = function(hash){
var hashs = (hash || location.hash).replace(/^#/, ‘’).split(’/’) || [];
var item, param = {
dir: []
};
for(var i = 0; i < hashs.length; i++){
item = hashs[i].split(’=’);
/^\w+=/.test(hashs[i]) ? function(){
if(item[0] !== ‘dir’){
param[item[0]] = item[1];
}
}() : param.dir.push(hashs[i]);
item = null;
}
return param;
};
//本地存储
Lay.fn.data = function(table, settings){
table = table || ‘layui’;
settings = typeof settings === ‘object’
? settings
: {key: settings};
if(!win.JSON || !win.JSON.parse) return;
try{
var data = JSON.parse(localStorage[table]);
} catch(e){
var data = {};
}
if(settings.value) data[settings.key] = settings.value;
if(settings.remove) delete data[settings.key];
localStorage[table] = JSON.stringify(data);
return settings.key ? data[settings.key] : data;
};
//设备信息
Lay.fn.device = function(key){
var agent = navigator.userAgent.toLowerCase();
//获取版本号
var getVersion = function(label){
var exp = new RegExp(label + ‘/([^\s\_\-]+)’);
label = (agent.match(exp)||[])[1];
return label || false;
};
var result = {
os: function(){ //底层操作系统
if(/windows/.test(agent)){
return ‘windows’;
} else if(/linux/.test(agent)){
return ‘linux’;
} else if(/iphone|ipod|ipad|ios/.test(agent)){
return ‘ios’;
}
}()
,ie: function(){ //ie版本
return (!!win.ActiveXObject || “ActiveXObject” in win) ? (
(agent.match(/msie\s(\d+)/) || [])[1] || ‘11’ //由于ie11并没有msie的标识
) : false;
}()
,weixin: getVersion(‘micromessenger’) //是否微信
};
//任意的key
if(key && !result[key]){
result[key] = getVersion(key);
}
//移动设备
result.android = /android/.test(agent);
result.ios = result.os === ‘ios’;
return result;
};
//提示
Lay.fn.hint = function(){
return {
error: error
}
};
//遍历
Lay.fn.each = function(obj, fn){
var that = this, key;
if(typeof fn !== ‘function’) return that;
obj = obj || [];
if(obj.constructor === Object){
for(key in obj){
if(fn.call(obj[key], key, obj[key])) break;
}
} else {
for(key = 0; key < obj.length; key++){
if(fn.call(obj[key], key, obj[key])) break;
}
}
return that;
};
//阻止事件冒泡
Lay.fn.stope = function(e){
e = e || win.event;
e.stopPropagation ? e.stopPropagation() : e.cancelBubble = true;
};
//自定义模块事件
Lay.fn.onevent = function(modName, events, callback){
if(typeof modName !== ‘string’
|| typeof callback !== ‘function’) return this;
config.event[modName + ‘.’ + events]
? config.event[modName + ‘.’ + events].push(callback)
: config.event[modName + ‘.’ + events] = [callback];
return this;
};
//执行自定义模块事件
Lay.fn.event = function(modName, events, params){
var that = this, result = null, filter = events.match(/(.*)$/)||[]; //提取事件过滤器
var set = (events = modName + ‘.’+ events).replace(filter, ‘’); //获取事件本体名
var callback = function(_, item){
var res = item && item.call(that, params);
res === false && result === null && (result = false);
};
layui.each(config.event[set], callback);
filter[0] && layui.each(config.event[events], callback); //执行过滤器中的事件
return result;
};
win.layui = new Lay();
}(window);