mirror of https://github.com/layui/layui
优化 upload 代码细节
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fbb83b52fd
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@ -6,76 +6,83 @@
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layui.define(['lay','layer'], function(exports){
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"use strict";
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var $ = layui.$
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,layer = layui.layer
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,device = layui.device()
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var $ = layui.$;
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var layer = layui.layer;
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var device = layui.device();
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//外部接口
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,upload = {
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config: {} //全局配置项
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//设置全局项
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,set: function(options){
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// 外部接口
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var upload = {
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config: {}, // 全局配置项
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// 设置全局项
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set: function(options){
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var that = this;
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that.config = $.extend({}, that.config, options);
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return that;
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}
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//事件
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,on: function(events, callback){
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},
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// 事件
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on: function(events, callback){
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return layui.onevent.call(this, MOD_NAME, events, callback);
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}
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}
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};
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//操作当前实例
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,thisUpload = function(){
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// 操作当前实例
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var thisUpload = function(){
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var that = this;
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return {
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upload: function(files){
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that.upload.call(that, files);
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}
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,reload: function(options){
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},
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reload: function(options){
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that.reload.call(that, options);
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}
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,config: that.config
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},
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config: that.config
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}
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}
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};
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//字符常量
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,MOD_NAME = 'upload', ELEM = 'layui-upload', THIS = 'layui-this', SHOW = 'layui-show', HIDE = 'layui-hide', DISABLED = 'layui-disabled'
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// 字符常量
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var MOD_NAME = 'upload';
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var ELEM = 'layui-upload';
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var THIS = 'layui-this';
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var SHOW = 'layui-show';
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var HIDE = 'layui-hide';
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var DISABLED = 'layui-disabled';
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,ELEM_FILE = 'layui-upload-file', ELEM_FORM = 'layui-upload-form', ELEM_IFRAME = 'layui-upload-iframe', ELEM_CHOOSE = 'layui-upload-choose', ELEM_DRAG = 'layui-upload-drag'
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var ELEM_FILE = 'layui-upload-file';
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var ELEM_FORM = 'layui-upload-form';
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var ELEM_IFRAME = 'layui-upload-iframe';
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var ELEM_CHOOSE = 'layui-upload-choose';
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var ELEM_DRAG = 'layui-upload-drag';
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//构造器
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,Class = function(options){
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// 构造器
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var Class = function(options){
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var that = this;
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that.config = $.extend({}, that.config, upload.config, options);
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that.render();
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};
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//默认配置
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// 默认配置
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Class.prototype.config = {
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accept: 'images' //允许上传的文件类型：images/file/video/audio
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,exts: '' //允许上传的文件后缀名
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,auto: true //是否选完文件后自动上传
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,bindAction: '' //手动上传触发的元素
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,url: '' //上传地址
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,force: '' //强制规定返回的数据格式，目前只支持是否强制 json
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,field: 'file' //文件字段名
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,acceptMime: '' //筛选出的文件类型，默认为所有文件
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,method: 'post' //请求上传的 http 类型
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,data: {} //请求上传的额外参数
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,drag: true //是否允许拖拽上传
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,size: 0 //文件限制大小，默认不限制
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,number: 0 //允许同时上传的文件数，默认不限制
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,multiple: false //是否允许多文件上传，不支持ie8-9
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accept: 'images', // 允许上传的文件类型：images/file/video/audio
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exts: '', // 允许上传的文件后缀名
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auto: true, // 是否选完文件后自动上传
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bindAction: '', // 手动上传触发的元素
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url: '', // 上传地址
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force: '', // 强制规定返回的数据格式，目前只支持是否强制 json
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field: 'file', // 文件字段名
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acceptMime: '', // 筛选出的文件类型，默认为所有文件
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method: 'post', // 请求上传的 http 类型
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data: {}, // 请求上传的额外参数
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drag: true, // 是否允许拖拽上传
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size: 0, // 文件限制大小，默认不限制
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number: 0, // 允许同时上传的文件数，默认不限制
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multiple: false // 是否允许多文件上传，不支持ie8-9
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};
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//初始渲染
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// 初始渲染
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Class.prototype.render = function(options){
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var that = this
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,options = that.config;
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var that = this;
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var options = that.config;
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options.elem = $(options.elem);
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options.bindAction = $(options.bindAction);
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@ -86,14 +93,14 @@ layui.define(['lay','layer'], function(exports){
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//追加文件域
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Class.prototype.file = function(){
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var that = this
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,options = that.config
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,elemFile = that.elemFile = $([
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var that = this;
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var options = that.config;
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var elemFile = that.elemFile = $([
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'<input class="'+ ELEM_FILE +'" type="file" accept="'+ options.acceptMime +'" name="'+ options.field +'"'
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,(options.multiple ? ' multiple' : '')
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,'>'
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].join(''))
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,next = options.elem.next();
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].join(''));
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var next = options.elem.next();
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if(next.hasClass(ELEM_FILE) || next.hasClass(ELEM_FORM)){
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next.remove();
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@ -105,8 +112,8 @@ layui.define(['lay','layer'], function(exports){
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}
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that.isFile() ? (
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that.elemFile = options.elem
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,options.field = options.elem[0].name
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that.elemFile = options.elem,
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options.field = options.elem[0].name
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) : options.elem.after(elemFile);
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//初始化ie8/9的Form域
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@ -117,10 +124,10 @@ layui.define(['lay','layer'], function(exports){
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//ie8-9初始化
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Class.prototype.initIE = function(){
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var that = this
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,options = that.config
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,iframe = $('<iframe id="'+ ELEM_IFRAME +'" class="'+ ELEM_IFRAME +'" name="'+ ELEM_IFRAME +'" frameborder="0"></iframe>')
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,elemForm = $(['<form target="'+ ELEM_IFRAME +'" class="'+ ELEM_FORM +'" method="post" key="set-mine" enctype="multipart/form-data" action="'+ options.url +'">'
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var that = this;
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var options = that.config;
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var iframe = $('<iframe id="'+ ELEM_IFRAME +'" class="'+ ELEM_IFRAME +'" name="'+ ELEM_IFRAME +'" frameborder="0"></iframe>');
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var elemForm = $(['<form target="'+ ELEM_IFRAME +'" class="'+ ELEM_FORM +'" method="post" key="set-mine" enctype="multipart/form-data" action="'+ options.url +'">'
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,'</form>'].join(''));
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//插入iframe
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@ -480,15 +487,15 @@ layui.define(['lay','layer'], function(exports){
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delete options.elem;
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delete options.bindAction;
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var that = this
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,options = that.config = $.extend({}, that.config, upload.config, options)
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,next = options.elem.next();
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var that = this;
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var options = that.config = $.extend({}, that.config, upload.config, options);
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var next = options.elem.next();
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//更新文件域相关属性
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next.attr({
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name: options.name
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,accept: options.acceptMime
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,multiple: options.multiple
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name: options.name,
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accept: options.acceptMime,
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multiple: options.multiple
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});
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};
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@ -508,9 +515,9 @@ layui.define(['lay','layer'], function(exports){
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// 设置选择的文本
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var setChooseText = function(files, filename){
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var elemFile = that.elemFile
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,item = options.item ? options.item : options.elem
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,value = files.length > 1
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var elemFile = that.elemFile;
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var item = options.item ? options.item : options.elem;
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var value = files.length > 1
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? files.length + '个文件'
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: ((files[0] || {}).name || (elemFile[0].value.match(/[^\/\\]+\..+/g)||[]) || '');
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@ -534,7 +541,7 @@ layui.define(['lay','layer'], function(exports){
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}
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};
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//点击上传容器
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// 点击上传容器
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options.elem.off('upload.start').on('upload.start', function(){
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var othis = $(this);
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@ -543,7 +550,7 @@ layui.define(['lay','layer'], function(exports){
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that.elemFile[0].click();
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});
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//拖拽上传
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// 拖拽上传
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if(!(device.ie && device.ie < 10)){
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options.elem.off('upload.over').on('upload.over', function(){
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var othis = $(this)
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@ -561,25 +568,25 @@ layui.define(['lay','layer'], function(exports){
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extendAttrs.call(this);
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setChooseFile(files);
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options.auto ? that.upload() : setChooseText(files); //是否自动触发上传
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options.auto ? that.upload() : setChooseText(files); // 是否自动触发上传
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});
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}
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//文件选择
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// 文件选择
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that.elemFile.off('upload.change').on('upload.change', function(){
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var files = this.files || [];
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extendAttrs.call(this);
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setChooseFile(files);
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options.auto ? that.upload() : setChooseText(files); //是否自动触发上传
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options.auto ? that.upload() : setChooseText(files); // 是否自动触发上传
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});
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//手动触发上传
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// 手动触发上传
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options.bindAction.off('upload.action').on('upload.action', function(){
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that.upload();
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});
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//防止事件重复绑定
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// 防止事件重复绑定
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if(options.elem.data('haveEvents')) return;
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that.elemFile.on('change', function(){
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@ -610,7 +617,7 @@ layui.define(['lay','layer'], function(exports){
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options.elem.data('haveEvents', true);
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};
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//核心入口
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// 核心入口
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upload.render = function(options){
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var inst = new Class(options);
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return thisUpload.call(inst);
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