upload.js

/** layui-v2.5.6 MIT License By https://www.layui.com */
 ;layui.define("layer",function(e){"use strict";var t=layui.$,i=layui.layer,n=layui.hint(),o=layui.device(),a={config:{},set:function(e){var i=this;return i.config=t.extend({},i.config,e),i},on:function(e,t){return layui.onevent.call(this,r,e,t)}},l=function(){var e=this;return{upload:function(t){e.upload.call(e,t)},reload:function(t){e.reload.call(e,t)},config:e.config}},r="upload",u="layui-upload-file",c="layui-upload-form",f="layui-upload-iframe",s="layui-upload-choose",p=function(e){var i=this;i.config=t.extend({},i.config,a.config,e),i.render()};p.prototype.config={accept:"images",exts:"",auto:!0,bindAction:"",url:"",field:"file",acceptMime:"",method:"post",data:{},drag:!0,size:0,number:0,multiple:!1},p.prototype.render=function(e){var i=this,e=i.config;e.elem=t(e.elem),e.bindAction=t(e.bindAction),i.file(),i.events()},p.prototype.file=function(){var e=this,i=e.config,n=e.elemFile=t(['<input class="'+u+'" type="file" accept="'+i.acceptMime+'" name="'+i.field+'"',i.multiple?" multiple":"",">"].join("")),a=i.elem.next();(a.hasClass(u)||a.hasClass(c))&&a.remove(),o.ie&&o.ie<10&&i.elem.wrap('<div class="layui-upload-wrap"></div>'),e.isFile()?(e.elemFile=i.elem,i.field=i.elem[0].name):i.elem.after(n),o.ie&&o.ie<10&&e.initIE()},p.prototype.initIE=function(){var e=this,i=e.config,n=t('<iframe id="'+f+'" class="'+f+'" name="'+f+'" frameborder="0"></iframe>'),o=t(['<form target="'+f+'" class="'+c+'" method="post" key="set-mine" enctype="multipart/form-data" action="'+i.url+'">',"</form>"].join(""));t("#"+f)[0]||t("body").append(n),i.elem.next().hasClass(c)||(e.elemFile.wrap(o),i.elem.next("."+c).append(function(){var e=[];return layui.each(i.data,function(t,i){i="function"==typeof i?i():i,e.push('<input type="hidden" name="'+t+'" value="'+i+'">')}),e.join("")}()))},p.prototype.msg=function(e){return i.msg(e,{icon:2,shift:6})},p.prototype.isFile=function(){var e=this.config.elem[0];if(e)return"input"===e.tagName.toLocaleLowerCase()&&"file"===e.type},p.prototype.preview=function(e){var t=this;window.FileReader&&layui.each(t.chooseFiles,function(t,i){var n=new FileReader;n.readAsDataURL(i),n.onload=function(){e&&e(t,i,this.result)}})},p.prototype.upload=function(e,i){var n,a=this,l=a.config,r=a.elemFile[0],u=function(){var i=0,n=0,o=e||a.files||a.chooseFiles||r.files,u=function(){l.multiple&&i+n===a.fileLength&&"function"==typeof l.allDone&&l.allDone({total:a.fileLength,successful:i,aborted:n})};layui.each(o,function(e,o){var r=new FormData;r.append(l.field,o),layui.each(l.data,function(e,t){t="function"==typeof t?t():t,r.append(e,t)});var c={url:l.url,type:"post",data:r,contentType:!1,processData:!1,dataType:"json",headers:l.headers||{},success:function(t){i++,d(e,t),u()},error:function(){n++,a.msg("请求上传接口出现异常"),m(e),u()}};"function"==typeof l.progress&&(c.xhr=function(){var e=t.ajaxSettings.xhr();return e.upload.addEventListener("progress",function(e){if(e.lengthComputable){var t=Math.floor(e.loaded/e.total*100);l.progress(t,l.item[0],e)}}),e}),t.ajax(c)})},c=function(){var e=t("#"+f);a.elemFile.parent().submit(),clearInterval(p.timer),p.timer=setInterval(function(){var t,i=e.contents().find("body");try{t=i.text()}catch(n){a.msg("获取上传后的响应信息出现异常"),clearInterval(p.timer),m()}t&&(clearInterval(p.timer),i.html(""),d(0,t))},30)},d=function(e,t){if(a.elemFile.next("."+s).remove(),r.value="","object"!=typeof t)try{t=JSON.parse(t)}catch(i){return t={},a.msg("请对上传接口返回有效JSON")}"function"==typeof l.done&&l.done(t,e||0,function(e){a.upload(e)})},m=function(e){l.auto&&(r.value=""),"function"==typeof l.error&&l.error(e||0,function(e){a.upload(e)})},h=l.exts,v=function(){var t=[];return layui.each(e||a.chooseFiles,function(e,i){t.push(i.name)}),t}(),g={preview:function(e){a.preview(e)},upload:function(e,t){var i={};i[e]=t,a.upload(i)},pushFile:function(){return a.files=a.files||{},layui.each(a.chooseFiles,function(e,t){a.files[e]=t}),a.files},resetFile:function(e,t,i){var n=new File([t],i);a.files=a.files||{},a.files[e]=n}},y=function(){if("choose"!==i&&!l.auto||(l.choose&&l.choose(g),"choose"!==i))return l.before&&l.before(g),o.ie?o.ie>9?u():c():void u()};if(v=0===v.length?r.value.match(/[^\/\\]+\..+/g)||[]||"":v,0!==v.length){switch(l.accept){case"file":if(h&&!RegExp("\\w\\.("+h+")$","i").test(escape(v)))return a.msg("选择的文件中包含不支持的格式"),r.value="";break;case"video":if(!RegExp("\\w\\.("+(h||"avi|mp4|wma|rmvb|rm|flash|3gp|flv")+")$","i").test(escape(v)))return a.msg("选择的视频中包含不支持的格式"),r.value="";break;case"audio":if(!RegExp("\\w\\.("+(h||"mp3|wav|mid")+")$","i").test(escape(v)))return a.msg("选择的音频中包含不支持的格式"),r.value="";break;default:if(layui.each(v,function(e,t){RegExp("\\w\\.("+(h||"jpg|png|gif|bmp|jpeg$")+")","i").test(escape(t))||(n=!0)}),n)return a.msg("选择的图片中包含不支持的格式"),r.value=""}if(a.fileLength=function(){var t=0,i=e||a.files||a.chooseFiles||r.files;return layui.each(i,function(){t++}),t}(),l.number&&a.fileLength>l.number)return a.msg("同时最多只能上传的数量为："+l.number);if(l.size>0&&!(o.ie&&o.ie<10)){var F;if(layui.each(a.chooseFiles,function(e,t){if(t.size>1024*l.size){var i=l.size/1024;i=i>=1?i.toFixed(2)+"MB":l.size+"KB",r.value="",F=i}}),F)return a.msg("文件不能超过"+F)}y()}},p.prototype.reload=function(e){e=e||{},delete e.elem,delete e.bindAction;var i=this,e=i.config=t.extend({},i.config,a.config,e),n=e.elem.next();n.attr({name:e.name,accept:e.acceptMime,multiple:e.multiple})},p.prototype.events=function(){var e=this,i=e.config,a=function(t){e.chooseFiles={},layui.each(t,function(t,i){var n=(new Date).getTime();e.chooseFiles[n+"-"+t]=i})},l=function(t,n){var o=e.elemFile,a=t.length>1?t.length+"个文件":(t[0]||{}).name||o[0].value.match(/[^\/\\]+\..+/g)||[]||"";o.next().hasClass(s)&&o.next().remove(),e.upload(null,"choose"),e.isFile()||i.choose||o.after('<span class="layui-inline '+s+'">'+a+"</span>")};i.elem.off("upload.start").on("upload.start",function(){var o=t(this),a=o.attr("lay-data");if(a)try{a=new Function("return "+a)(),e.config=t.extend({},i,a)}catch(l){n.error("Upload element property lay-data configuration item has a syntax error: "+a)}e.config.item=o,e.elemFile[0].click()}),o.ie&&o.ie<10||i.elem.off("upload.over").on("upload.over",function(){var e=t(this);e.attr("lay-over","")}).off("upload.leave").on("upload.leave",function(){var e=t(this);e.removeAttr("lay-over")}).off("upload.drop").on("upload.drop",function(n,o){var r=t(this),u=o.originalEvent.dataTransfer.files||[];r.removeAttr("lay-over"),a(u),i.auto?e.upload(u):l(u)}),e.elemFile.off("upload.change").on("upload.change",function(){var t=this.files||[];a(t),i.auto?e.upload():l(t)}),i.bindAction.off("upload.action").on("upload.action",function(){e.upload()}),i.elem.data("haveEvents")||(e.elemFile.on("change",function(){t(this).trigger("upload.change")}),i.elem.on("click",function(){e.isFile()||t(this).trigger("upload.start")}),i.drag&&i.elem.on("dragover",function(e){e.preventDefault(),t(this).trigger("upload.over")}).on("dragleave",function(e){t(this).trigger("upload.leave")}).on("drop",function(e){e.preventDefault(),t(this).trigger("upload.drop",e)}),i.bindAction.on("click",function(){t(this).trigger("upload.action")}),i.elem.data("haveEvents",!0))},a.render=function(e){var t=new p(e);return l.call(t)},e(r,a)});