434 lines
11 KiB
JavaScript
434 lines
11 KiB
JavaScript
/*!
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@Title: Layui
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@Description：经典模块化前端框架
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@Site: www.layui.com
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@Author: 贤心
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@License：MIT
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*/
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;!function(win){
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"use strict";
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var Lay = function(){
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this.v = '1.0.9_rls'; //版本号
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};
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Lay.fn = Lay.prototype;
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var doc = document, config = Lay.fn.cache = {},
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//获取layui所在目录
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getPath = function(){
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var js = doc.scripts, jsPath = js[js.length - 1].src;
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return jsPath.substring(0, jsPath.lastIndexOf('/') + 1);
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}(),
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//异常提示
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error = function(msg){
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win.console && console.error && console.error('Layui hint: ' + msg);
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},
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isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]',
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//内置模块
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modules = {
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layer: 'modules/layer' //弹层
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,laydate: 'modules/laydate' //日期
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,laypage: 'modules/laypage' //分页
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,laytpl: 'modules/laytpl' //模板引擎
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,layim: 'modules/layim' //web通讯
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,layedit: 'modules/layedit' //富文本编辑器
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,form: 'modules/form' //表单集
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,upload: 'modules/upload' //上传
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,tree: 'modules/tree' //树结构
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,table: 'modules/table' //富表格
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,element: 'modules/element' //常用元素操作
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,util: 'modules/util' //工具块
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,flow: 'modules/flow' //流加载
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,carousel: 'modules/carousel' //轮播
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,code: 'modules/code' //代码修饰器
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,jquery: 'modules/jquery' //DOM库（第三方）
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,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
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,'layui.all': 'dest/layui.all' //PC模块合并版
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};
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config.modules = {}; //记录模块物理路径
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config.status = {}; //记录模块加载状态
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config.timeout = 10; //符合规范的模块请求最长等待秒数
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config.event = {}; //记录模块自定义事件
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//定义模块
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Lay.fn.define = function(deps, callback){
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var that = this
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,type = typeof deps === 'function'
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,mods = function(){
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typeof callback === 'function' && callback(function(app, exports){
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layui[app] = exports;
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config.status[app] = true;
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});
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return this;
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};
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type && (
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callback = deps,
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deps = []
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);
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if(layui['layui.all'] || (!layui['layui.all'] && layui['layui.mobile'])){
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return mods.call(that);
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}
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that.use(deps, mods);
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return that;
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};
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//使用特定模块
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Lay.fn.use = function(apps, callback, exports){
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var that = this, dir = config.dir = config.dir ? config.dir : getPath;
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var head = doc.getElementsByTagName('head')[0];
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apps = typeof apps === 'string' ? [apps] : apps;
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//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
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if(window.jQuery && jQuery.fn.on){
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that.each(apps, function(index, item){
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if(item === 'jquery'){
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apps.splice(index, 1);
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}
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});
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layui.jquery = jQuery;
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}
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var item = apps[0], timeout = 0;
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exports = exports || [];
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//静态资源host
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config.host = config.host || (dir.match(/\/\/([\s\S]+?)\//)||['//'+ location.host +'/'])[0];
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if(apps.length === 0
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|| (layui['layui.all'] && modules[item])
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|| (!layui['layui.all'] && layui['layui.mobile'] && modules[item])
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){
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return onCallback(), that;
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}
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//加载完毕
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function onScriptLoad(e, url){
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var readyRegExp = navigator.platform === 'PLaySTATION 3' ? /^complete$/ : /^(complete|loaded)$/
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if (e.type === 'load' || (readyRegExp.test((e.currentTarget || e.srcElement).readyState))) {
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config.modules[item] = url;
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head.removeChild(node);
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(function poll() {
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if(++timeout > config.timeout * 1000 / 4){
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return error(item + ' is not a valid module');
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};
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config.status[item] ? onCallback() : setTimeout(poll, 4);
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}());
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}
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}
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//加载模块
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var node = doc.createElement('script'), url = (
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modules[item] ? (dir + 'lay/') : (config.base || '')
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) + (that.modules[item] || item) + '.js';
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node.async = true;
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node.charset = 'utf-8';
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node.src = url + function(){
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var version = config.version === true
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? (config.v || (new Date()).getTime())
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: (config.version||'');
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return version ? ('?v=' + version) : '';
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}();
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//首次加载
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if(!config.modules[item]){
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head.appendChild(node);
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if(node.attachEvent && !(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) && !isOpera){
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node.attachEvent('onreadystatechange', function(e){
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onScriptLoad(e, url);
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});
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} else {
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node.addEventListener('load', function(e){
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onScriptLoad(e, url);
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}, false);
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}
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} else {
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(function poll() {
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if(++timeout > config.timeout * 1000 / 4){
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return error(item + ' is not a valid module');
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};
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(typeof config.modules[item] === 'string' && config.status[item])
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? onCallback()
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: setTimeout(poll, 4);
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}());
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}
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config.modules[item] = url;
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//回调
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function onCallback(){
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exports.push(layui[item]);
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apps.length > 1 ?
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that.use(apps.slice(1), callback, exports)
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: ( typeof callback === 'function' && callback.apply(layui, exports) );
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}
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return that;
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};
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//获取节点的style属性值
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Lay.fn.getStyle = function(node, name){
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var style = node.currentStyle ? node.currentStyle : win.getComputedStyle(node, null);
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return style[style.getPropertyValue ? 'getPropertyValue' : 'getAttribute'](name);
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};
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//css外部加载器
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Lay.fn.link = function(href, fn, cssname){
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var that = this, link = doc.createElement('link');
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var head = doc.getElementsByTagName('head')[0];
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if(typeof fn === 'string') cssname = fn;
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var app = (cssname || href).replace(/\.|\//g, '');
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var id = link.id = 'layuicss-'+app, timeout = 0;
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link.rel = 'stylesheet';
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link.href = href + (config.debug ? '?v='+new Date().getTime() : '');
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link.media = 'all';
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if(!doc.getElementById(id)){
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head.appendChild(link);
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}
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if(typeof fn !== 'function') return that;
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//轮询css是否加载完毕
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(function poll() {
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if(++timeout > config.timeout * 1000 / 100){
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return error(href + ' timeout');
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};
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parseInt(that.getStyle(doc.getElementById(id), 'width')) === 1989 ? function(){
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fn();
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}() : setTimeout(poll, 100);
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}());
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return that;
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};
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//css内部加载器
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Lay.fn.addcss = function(firename, fn, cssname){
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return layui.link(config.dir + 'css/' + firename, fn, cssname);
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};
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//图片预加载
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Lay.fn.img = function(url, callback, error) {
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var img = new Image();
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img.src = url;
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if(img.complete){
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return callback(img);
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}
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img.onload = function(){
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img.onload = null;
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callback(img);
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};
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img.onerror = function(e){
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img.onerror = null;
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error(e);
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};
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};
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//全局配置
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Lay.fn.config = function(options){
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options = options || {};
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for(var key in options){
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config[key] = options[key];
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}
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return this;
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};
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//记录全部模块
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Lay.fn.modules = function(){
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var clone = {};
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for(var o in modules){
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clone[o] = modules[o];
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}
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return clone;
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}();
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//拓展模块
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Lay.fn.extend = function(options){
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var that = this;
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//验证模块是否被占用
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options = options || {};
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for(var o in options){
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if(that[o] || that.modules[o]){
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error('\u6A21\u5757\u540D '+ o +' \u5DF2\u88AB\u5360\u7528');
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} else {
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that.modules[o] = options[o];
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}
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}
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return that;
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};
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//路由解析
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Lay.fn.router = function(hash){
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var that = this, hash = hash || location.hash, data = {
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path: []
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,search: {}
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,hash: (hash.match(/[^#](#.*$)/) || [])[1] || ''
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};
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if(!/^#\//.test(hash)) return data; //禁止非路由规范
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hash = hash.replace(/^#\//, '').replace(/([^#])(#.*$)/, '$1').split('/') || [];
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//提取Hash结构
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that.each(hash, function(index, item){
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/^\w+=/.test(item) ? function(){
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item = item.split('=');
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data.search[item[0]] = item[1];
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}() : data.path.push(item);
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});
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return data;
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};
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//本地存储
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Lay.fn.data = function(table, settings){
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table = table || 'layui';
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if(!win.JSON || !win.JSON.parse) return;
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//如果settings为null，则删除表
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if(settings === null){
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return delete localStorage[table];
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}
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settings = typeof settings === 'object'
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? settings
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: {key: settings};
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try{
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var data = JSON.parse(localStorage[table]);
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} catch(e){
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var data = {};
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}
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if(settings.value) data[settings.key] = settings.value;
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if(settings.remove) delete data[settings.key];
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localStorage[table] = JSON.stringify(data);
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return settings.key ? data[settings.key] : data;
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};
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//设备信息
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Lay.fn.device = function(key){
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var agent = navigator.userAgent.toLowerCase();
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//获取版本号
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var getVersion = function(label){
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var exp = new RegExp(label + '/([^\\s\\_\\-]+)');
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label = (agent.match(exp)||[])[1];
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return label || false;
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};
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var result = {
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os: function(){ //底层操作系统
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if(/windows/.test(agent)){
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return 'windows';
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} else if(/linux/.test(agent)){
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return 'linux';
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} else if(/mac/.test(agent)){
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return 'mac';
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} else if(/iphone|ipod|ipad|ios/.test(agent)){
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return 'ios';
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}
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}()
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,ie: function(){ //ie版本
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return (!!win.ActiveXObject || "ActiveXObject" in win) ? (
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(agent.match(/msie\s(\d+)/) || [])[1] || '11' //由于ie11并没有msie的标识
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) : false;
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}()
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,weixin: getVersion('micromessenger') //是否微信
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};
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//任意的key
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if(key && !result[key]){
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result[key] = getVersion(key);
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}
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//移动设备
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result.android = /android/.test(agent);
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result.ios = result.os === 'ios';
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return result;
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};
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//提示
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Lay.fn.hint = function(){
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return {
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error: error
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}
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};
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//遍历
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Lay.fn.each = function(obj, fn){
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var that = this, key;
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if(typeof fn !== 'function') return that;
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obj = obj || [];
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if(obj.constructor === Object){
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for(key in obj){
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if(fn.call(obj[key], key, obj[key])) break;
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}
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} else {
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for(key = 0; key < obj.length; key++){
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if(fn.call(obj[key], key, obj[key])) break;
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}
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}
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return that;
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};
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//阻止事件冒泡
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Lay.fn.stope = function(e){
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e = e || win.event;
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e.stopPropagation ? e.stopPropagation() : e.cancelBubble = true;
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};
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//自定义模块事件
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Lay.fn.onevent = function(modName, events, callback){
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if(typeof modName !== 'string'
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|| typeof callback !== 'function') return this;
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config.event[modName + '.' + events] = [callback];
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//不再对多次事件监听做支持
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/*
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config.event[modName + '.' + events]
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? config.event[modName + '.' + events].push(callback)
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: config.event[modName + '.' + events] = [callback];
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*/
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return this;
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};
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//执行自定义模块事件
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Lay.fn.event = function(modName, events, params){
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var that = this, result = null, filter = events.match(/\(.*\)$/)||[]; //提取事件过滤器
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var set = (events = modName + '.'+ events).replace(filter, ''); //获取事件本体名
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var callback = function(_, item){
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var res = item && item.call(that, params);
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res === false && result === null && (result = false);
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};
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layui.each(config.event[set], callback);
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filter[0] && layui.each(config.event[events], callback); //执行过滤器中的事件
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return result;
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};
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win.layui = new Lay();
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}(window);
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