forked from Double-Lv/Huploadify
-
Notifications
You must be signed in to change notification settings - Fork 0
/
jquery.Huploadify.js
323 lines (307 loc) · 11.7 KB
/
jquery.Huploadify.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
(function($){
$.fn.Huploadify = function(opts){
var itemTemp = '<div id="${fileID}" class="uploadify-queue-item"><div class="uploadify-progress"><div class="uploadify-progress-bar"></div></div><span class="up_filename">${fileName}</span><a href="javascript:void(0);" class="uploadbtn">上传</a><a href="javascript:void(0);" class="delfilebtn">删除</a></div>';
var defaults = {
fileTypeExts:'*.*',//允许上传的文件类型,格式'*.jpg;*.doc'
uploader:'',//文件提交的地址
auto:false,//是否开启自动上传
method:'post',//发送请求的方式,get或post
multi:true,//是否允许选择多个文件
formData:null,//发送给服务端的参数,格式:{key1:value1,key2:value2}
fileObjName:'file',//在后端接受文件的参数名称,如PHP中的$_FILES['file']
fileSizeLimit:2048,//允许上传的文件大小,单位KB
showUploadedPercent:true,//是否实时显示上传的百分比,如20%
showUploadedSize:false,//是否实时显示已上传的文件大小,如1M/2M
buttonText:'选择文件',//上传按钮上的文字
removeTimeout: 1000,//上传完成后进度条的消失时间,单位毫秒
itemTemplate:itemTemp,//上传队列显示的模板
onUploadStart:null,//上传开始时的动作
onUploadSuccess:null,//上传成功的动作
onUploadComplete:null,//上传完成的动作
onUploadError:null, //上传失败的动作
onInit:null,//初始化时的动作
onCancel:null//删除掉某个文件后的回调函数,可传入参数file
}
var option = $.extend(defaults,opts);
//定义一个通用函数集合
var F = {
//将文件的单位由bytes转换为KB或MB,若第二个参数指定为true,则永远转换为KB
formatFileSize : function(size,withKB){
if (size > 1024 * 1024 && !withKB){
size = (Math.round(size * 100 / (1024 * 1024)) / 100).toString() + 'MB';
}
else{
size = (Math.round(size * 100 / 1024) / 100).toString() + 'KB';
}
return size;
},
//将输入的文件类型字符串转化为数组,原格式为*.jpg;*.png
getFileTypes : function(str){
var result = [];
var arr1 = str.split(";");
for(var i=0, len=arr1.length; i<len; i++){
result.push(arr1[i].split(".").pop());
}
return result;
},
////根据文件序号获取文件
getFile : function(index,files){
for(var i=0;i<files.length;i++){
if(files[i].index == index){
return files[i];
}
}
return null;
}
};
var uploadManager = null;
this.each(function(index, element){
var _this = $(element);
var instanceNumber = $('.uploadify').length+1;
uploadManager = {
container : _this,
filteredFiles : [],//过滤后的文件数组
init : function(){
var inputStr = '<input id="select_btn_'+instanceNumber+'" class="selectbtn" style="display:none;" type="file" name="fileselect[]"';
inputStr += option.multi ? ' multiple' : '';
inputStr += ' accept="';
inputStr += F.getFileTypes(option.fileTypeExts).join(",");
inputStr += '"/>';
inputStr += '<a id="file_upload_'+instanceNumber+'-button" href="javascript:void(0)" class="uploadify-button">';
inputStr += option.buttonText;
inputStr += '</a>';
var uploadFileListStr = '<div id="file_upload_'+instanceNumber+'-queue" class="uploadify-queue"></div>';
_this.append(inputStr+uploadFileListStr);
//文件选择控件选择
var fileInput = this._getInputBtn();
if (fileInput.length>0) {
fileInput.change(function(e) {
uploadManager._getFiles(e);
});
}
//点击选择文件按钮时触发file的click事件
_this.find('.uploadify-button').on('click',function(){
_this.find('.selectbtn').trigger('click');
});
option.onInit && option.onInit();
},
_filter: function(files) { //选择文件组的过滤方法
var arr = [];
var typeArray = F.getFileTypes(option.fileTypeExts);
if(typeArray.length>0){
for(var i=0,len=files.length;i<len;i++){
var f = files[i];
if(parseInt(F.formatFileSize(f.size,true))<=option.fileSizeLimit){
if($.inArray('*',typeArray)>=0 || $.inArray(f.name.split('.').pop(),typeArray)>=0){
arr.push(f);
}
else{
alert('文件 "'+f.name+'" 类型不允许!');
}
}
else{
alert('文件 "'+f.name+'" 大小超出限制!');
continue;
}
}
}
return arr;
},
_getInputBtn : function(){
return _this.find('.selectbtn');
},
_getFileList : function(){
return _this.find('.uploadify-queue');
},
//根据选择的文件,渲染DOM节点
_renderFile : function(file){
var $html = $(option.itemTemplate.replace(/\${fileID}/g,'fileupload_'+instanceNumber+'_'+file.index).replace(/\${fileName}/g,file.name).replace(/\${fileSize}/g,F.formatFileSize(file.size)).replace(/\${instanceID}/g,_this.attr('id')));
//如果是非自动上传,显示上传按钮
if(!option.auto){
$html.find('.uploadbtn').css('display','inline-block');
}
uploadManager._getFileList().append($html);
//判断是否显示已上传文件大小
if(option.showUploadedSize){
var num = '<span class="progressnum"><span class="uploadedsize">0KB</span>/<span class="totalsize">${fileSize}</span></span>'.replace(/\${fileSize}/g,F.formatFileSize(file.size));
$html.find('.uploadify-progress').after(num);
}
//判断是否显示上传百分比
if(option.showUploadedPercent){
var percentText = '<span class="up_percent">0%</span>';
$html.find('.uploadify-progress').after(percentText);
}
//判断是否是自动上传
if(option.auto){
uploadManager.uploadFile(file);
}
else{
//如果配置非自动上传,绑定上传事件
$html.find('.uploadbtn').on('click',function(){
if(!$(this).hasClass('.disabledbtn')){
$(this).addClass('.disabledbtn');
uploadManager._uploadFile(file);
}
});
}
//为删除文件按钮绑定删除文件事件
$html.find('.delfilebtn').on('click',function(){
if(!$(this).hasClass('.disabledbtn')){
$(this).addClass('.disabledbtn');
uploadManager._deleteFile(file);
}
});
},
//获取选择后的文件
_getFiles : function(e){
var files = e.target.files;
files = uploadManager._filter(files);
var fileCount = _this.find('.uploadify-queue .uploadify-queue-item').length;//队列中已经有的文件个数
for(var i=0,len=files.length;i<len;i++){
files[i].index = ++fileCount;
uploadManager.filteredFiles.push(files[i]);
uploadManager._renderFile(files[i]);
}
},
//删除文件
_deleteFile : function(file){
for (var i = 0,len=uploadManager.filteredFiles.length; i<len; i++) {
var f = uploadManager.filteredFiles[i];
if (f.index == file.index) {
uploadManager.filteredFiles.splice(i,1);
_this.find('#fileupload_'+instanceNumber+'_'+file.index).fadeOut();
option.onCancel && option.onCancel(file);
break;
}
}
},
//校正上传完成后的进度条误差
_regulateView : function(file){
var thisfile = _this.find('#fileupload_'+instanceNumber+'_'+file.index);
thisfile.find('.uploadify-progress-bar').css('width','100%');
option.showUploadedSize && thisfile.find('.uploadedsize').text(thisfile.find('.totalsize').text());
option.showUploadedPercent && thisfile.find('.up_percent').text('100%');
},
onProgress: function(file, loaded, total) {
var eleProgress = _this.find('#fileupload_'+instanceNumber+'_'+file.index+' .uploadify-progress');
var percent = (loaded / total * 100).toFixed(2) +'%';
if(option.showUploadedSize){
eleProgress.nextAll('.progressnum .uploadedsize').text(F.formatFileSize(loaded));
eleProgress.nextAll('.progressnum .totalsize').text(F.formatFileSize(total));
}
if(option.showUploadedPercent){
eleProgress.nextAll('.up_percent').text(percent);
}
eleProgress.children('.uploadify-progress-bar').css('width',percent);
},
//上传文件
_uploadFile : function(file){
var xhr = null;
try{
xhr=new XMLHttpRequest();
}catch(e){
xhr=ActiveXobject("Msxml12.XMLHTTP");
}
if(xhr.upload){
// 上传中
xhr.upload.onprogress = function(e) {
uploadManager.onProgress(file, e.loaded, e.total);
};
xhr.onreadystatechange = function(e) {
if(xhr.readyState == 4){
if(xhr.status == 200){
uploadManager._regulateView(file);
option.onUploadSuccess && option.onUploadSuccess(file, xhr.responseText);
//在指定的间隔时间后删掉进度条
setTimeout(function(){
_this.find('#fileupload_'+instanceNumber+'_'+file.index).fadeOut();
},option.removeTimeout);
}
else {
option.onUploadError && option.onUploadError(file, xhr.responseText);
}
option.onUploadComplete && option.onUploadComplete(file,xhr.responseText);
//清除文件选择框中的已有值
uploadManager._getInputBtn().val('');
}
}
option.onUploadStart && option.onUploadStart();
// 开始上传
xhr.open(option.method, option.uploader, true);
xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
var fd = new FormData();
fd.append(option.fileObjName,file);
if(option.formData){
for(key in option.formData){
fd.append(key,option.formData[key]);
}
}
xhr.send(fd);
}
}
};
uploadManager.init();
});
var returnObj = {
upload : function(fileIndex){
if(fileIndex === '*'){
for(var i=0,len=uploadManager.filteredFiles.length;i<len;i++){
uploadManager._uploadFile(uploadManager.filteredFiles[i]);
}
}
else{
var file = F.getFile(fileIndex,uploadManager.filteredFiles);
file && uploadManager._uploadFile(file);
}
},
cancel : function(fileIndex){
if(fileIndex === '*'){
var len=uploadManager.filteredFiles.length;
for(var i=len-1;i>=0;i--){
uploadManager._deleteFile(uploadManager.filteredFiles[i]);
}
}
else{
var file = F.getFile(fileIndex,uploadManager.filteredFiles);
file && uploadManager._deleteFile(file);
}
},
disable : function(instanceID){
var parent = instanceID ? $('file_upload_'+instanceID+'-button') : $('body');
parent.find('.uploadify-button').css('background-color','#888').off('click');
},
ennable : function(instanceID){
//点击上传按钮时触发file的click事件
var parent = instanceID ? $('file_upload_'+instanceID+'-button') : $('body');
parent.find('.uploadify-button').css('background-color','#707070').on('click',function(){
parent.find('.selectbtn').trigger('click');
});
},
destroy : function(){
uploadManager.container.html('');
uploadManager = null;
},
settings : function(name,value){
if(arguments.length==1){
return option[name];
}
else{
if(name=='formData'){
option.formData = $.extend(option.formData, value);
}
else{
option[name] = value;
}
}
},
Huploadify : function(){
var method = arguments[0];
if(method in this){
Array.prototype.splice.call(arguments, 0, 1);
this[method].apply(this[method], arguments);
}
}
};
return returnObj;
}
})(jQuery)