/*!

 @Title: Layui
 @Description：经典模块化前端框架
 @Site: www.layui.com
 @Author: 贤心
 @License：MIT

 */

; !function (win) {
    "use strict";

    var doc = document, config = {
        modules: {} //记录模块物理路径
      , status: {} //记录模块加载状态
      , timeout: 10 //符合规范的模块请求最长等待秒数
      , event: {} //记录模块自定义事件
    }

    , Layui = function () {
        this.v = '2.2.45'; //版本号
    }

    //获取layui所在目录
    , getPath = function () {
        var jsPath = doc.currentScript ? doc.currentScript.src : function () {
            var js = doc.scripts
            , last = js.length - 1
            , src;
            for (var i = last; i > 0; i--) {
                if (js[i].readyState === 'interactive') {
                    src = js[i].src;
                    break;
                }
            }
            return src || js[last].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
      , table: 'modules/table' //表格
      , element: 'modules/element' //常用元素操作
      , util: 'modules/util' //工具块
      , flow: 'modules/flow' //流加载
      , carousel: 'modules/carousel' //轮播
      , code: 'modules/code' //代码修饰器
      , jquery: 'modules/jquery' //DOM库（第三方）
        , slider: 'modules/slider' //DOM库（第三方）
      , mobile: 'modules/mobile' //移动大模块 | 若当前为开发目录，则为移动模块入口，否则为移动模块集合
      , 'layui.all': '../layui.all' //PC模块合并版
    };

    //记录基础数据
    Layui.prototype.cache = config;

    //定义模块
    Layui.prototype.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'] || (!layui['layui.all'] && layui['layui.mobile'])) {
            return mods.call(that);
        }

        that.use(deps, mods);
        return that;
    };

    //使用特定模块
    Layui.prototype.use = function (apps, callback, exports) {
        var that = this
        , dir = config.dir = config.dir ? config.dir : getPath
        , 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 = layui.$ = 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];

        //加载完毕
        function onScriptLoad(e, url) {
            var readyRegExp = navigator.platform === 'PLaySTATION 3' ? /^complete$/ : /^(complete|loaded)$/
            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);
                }());
            }
        }

        //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));
        }

        //如果使用了 layui.all.js
        if (apps.length === 0
        || (layui['layui.all'] && modules[item])
        || (!layui['layui.all'] && layui['layui.mobile'] && modules[item])
        ) {
            return onCallback(), that;
        }

        //首次加载模块
        if (!config.modules[item]) {
            var node = doc.createElement('script')

            //如果是内置模块，则按照 dir 参数拼接模块路径
            //如果是扩展模块，则判断模块路径值是否为 {/} 开头，
            //如果路径值是 {/} 开头，则模块路径即为后面紧跟的字符。
            //否则，则按照 base 参数拼接模块路径
            , url = (modules[item] ? (dir + 'lay/')
              : (/^\{\/\}/.test(that.modules[item]) ? '' : (config.base || ''))
            ) + (that.modules[item] || item) + '.js';

            url = url.replace(/^\{\/\}/, '');

            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) : '';
            }();

            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);
            }

            config.modules[item] = url;
        } else { //缓存
            (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);
            }());
        }

        return that;
    };

    //获取节点的style属性值
    Layui.prototype.getStyle = function (node, name) {
        var style = node.currentStyle ? node.currentStyle : win.getComputedStyle(node, null);
        return style[style.getPropertyValue ? 'getPropertyValue' : 'getAttribute'](name);
    };

    //css外部加载器
    Layui.prototype.link = function (href, fn, cssname) {
        var that = this
        , link = doc.createElement('link')
        , head = doc.getElementsByTagName('head')[0];

        if (typeof fn === 'string') cssname = fn;

        var app = (cssname || href).replace(/\.|\//g, '')
        , 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 that;

        //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);
        }());

        return that;
    };

    //css内部加载器
    Layui.prototype.addcss = function (firename, fn, cssname) {
        return layui.link(config.dir + 'css/' + firename, fn, cssname);
    };

    //图片预加载
    Layui.prototype.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
    Layui.prototype.config = function (options) {
        options = options || {};
        for (var key in options) {
            config[key] = options[key];
        }
        return this;
    };

    //记录全部模块
    Layui.prototype.modules = function () {
        var clone = {};
        for (var o in modules) {
            clone[o] = modules[o];
        }
        return clone;
    }();

    //拓展模块
    Layui.prototype.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;
    };

    //路由解析
    Layui.prototype.router = function (hash) {
        var that = this
        , hash = hash || location.hash
        , data = {
            path: []
          , search: {}
          , hash: (hash.match(/[^#](#.*$)/) || [])[1] || ''
        };

        if (!/^#\//.test(hash)) return data; //禁止非路由规范
        hash = hash.replace(/^#\//, '').replace(/([^#])(#.*$)/, '$1').split('/') || [];

        //提取Hash结构
        that.each(hash, function (index, item) {
            /^\w+=/.test(item) ? function () {
                item = item.split('=');
                data.search[item[0]] = item[1];
            }() : data.path.push(item);
        });

        return data;
    };

    //本地存储
    Layui.prototype.data = function (table, settings) {
        table = table || 'layui';

        if (!win.JSON || !win.JSON.parse) return;

        //如果settings为null，则删除表
        if (settings === null) {
            return delete localStorage[table];
        }

        settings = typeof settings === 'object'
          ? settings
        : { key: settings };

        try {
            var data = JSON.parse(localStorage[table]);
        } catch (e) {
            var data = {};
        }

        if ('value' in settings) 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
    Layui.prototype.device = function (key) {
        var agent = navigator.userAgent.toLowerCase()

        //获取版本号
        , getVersion = function (label) {
            var exp = new RegExp(label + '/([^\\s\\_\\-]+)');
            label = (agent.match(exp) || [])[1];
            return label || false;
        }

        //返回结果集
        , 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';
                } else if (/mac/.test(agent)) {
                    return 'mac';
                }
            }()
          , 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
    Layui.prototype.hint = function () {
        return {
            error: error
        }
    };

    //遍历
    Layui.prototype.each = function (obj, fn) {
        var key
        , that = this;
        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;
    };

    //将数组中的对象按其某个成员排序
    Layui.prototype.sort = function (obj, key, desc) {
        var clone = JSON.parse(
          JSON.stringify(obj || [])
        );

        if (!key) return clone;

        //如果是数字，按大小排序，如果是非数字，按字典序排序
        clone.sort(function (o1, o2) {
            var isNum = /^-?\d+$/
            , v1 = o1[key]
            , v2 = o2[key];

            if (isNum.test(v1)) v1 = parseFloat(v1);
            if (isNum.test(v2)) v2 = parseFloat(v2);

            if (v1 && !v2) {
                return 1;
            } else if (!v1 && v2) {
                return -1;
            }

            if (v1 > v2) {
                return 1;
            } else if (v1 < v2) {
                return -1;
            } else {
                return 0;
            }
        });

        desc && clone.reverse(); //倒序
        return clone;
    };

    //阻止事件冒泡
    Layui.prototype.stope = function (e) {
        e = e || win.event;
        e.stopPropagation
          ? e.stopPropagation()
        : e.cancelBubble = true;
    };

    //自定义模块事件
    Layui.prototype.onevent = function (modName, events, callback) {
        if (typeof modName !== 'string'
        || typeof callback !== 'function') return this;
        config.event[modName + '.' + events] = [callback];

        //不再对多次事件监听做支持
        /*
        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
    Layui.prototype.event = function (modName, events, params) {
        var that = this
        , result = null
        , filter = events.match(/\(.*\)$/) || [] //提取事件过滤器
        , set = (events = modName + '.' + events).replace(filter, '') //获取事件本体名
        , 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 Layui();

}(window);