Extjs2.x 实现文件下传组件

Extjs2.x 实现文件上传组件

该上传组件已经在项目中使用，分为两个模式，一种是弹出一个window;

对上传文件进行控制：



点击开始上传提示

上传成功后可以进行打包下载

另一种是直接嵌入到面板中。
入续会贴过来。

HM={};
HM.themis={};
HM.themis.FileUploadMgr={}
HM.themis.FileUploadMgr = {
	fileUploadFormWin : undefined,
//	linkInfoFormWin : undefined,
//	reportFormWins : undefined,
//	fsa : undefined,
    showAttachmentsUrl: 'sysFile_getFileList.action',
    uploadUrl:'sysFile_uploadFile.action',
    downloadUrl:'sysFile_downFile.action',
    deleteUrl: 'sysFile_deleteByLogic.action',
    relationId:'id',
    fileNum:0,
    invalidTypeMsg : '不能下载还未上传的文件！',
    zipFileName :'打包下载文件',
    title:'title',
	warnMsgTitle : '警告',
    sort:'document',
    width : 520,
    height : 340,
    viewFlag:false,
    show : function(id) {
		    Ext.ux.UploadDialog.EnableFileCount=this.fileNum;
            if(!this.permitted_extensions) {
             this.permitted_extensions = Ext.harmony.util.SystemConfig.allowFileTypes;
            }
			this.fileUploadFormWin = new Ext.ux.UploadDialog.Dialog({
				autoCreate : true,
				closable : true,
				modal : true,
				collapsible : false,
				draggable : true,
				minWidth : 380,
				minHeight : 220,
				width : this.width,
				height : this.height,
				proxyDrag : true,
				permitted_extensions:this.permitted_extensions,
                viewFlag : this.viewFlag,
                zipFileName : this.zipFileName,
				resizable : true,
				post_var_name : 'file',
				constraintoviewport : true,
				title : this.title,
                
                deleteUrl : this.deleteUrl,
				url : this.uploadUrl,
                base_params: {relationId:this.relationId,sort:this.sort},
				reset_on_hide : true,
				allow_close_on_upload : true
			});
		
		this.fileUploadFormWin.show();
		
		this.initData(this.relationId);

	},

//	hide : function() {
//		this.fileUploadFormWin.hide();
//	},

    initData : function(infoId) {

		this.fileUploadFormWin.grid_panel
				.on("rowdblclick", this.download, this);
		Ext.Ajax.request({
			url : this.showAttachmentsUrl,
			params : {relationId: infoId,sort:this.sort},
			method : "POST",
//			form : this.form,
//			isUpload : true,
			success : this.onAjaxSuccess,
			failure : this.onAjaxFailure,
			scope : this
		});

	},

    onAjaxSuccess : function(response, options) {
		var json_response;
        try {
			var rt = response.responseText;
			var filter = rt.match(/^<[^>]+>((?:.|\n)*)<\/[^>]+>$/);
			if (filter) {
				rt = filter[1];
			}

			json_response = Ext.util.JSON.decode(rt);
		} catch (e) {
            return;
		}

		var store = this.fileUploadFormWin.grid_panel.getStore();
     
		var button_container = this.fileUploadFormWin.el.child(".x-btn-center");
		button_container.position("relative");
		var myinput_file = Ext.DomHelper.append(button_container, {
			tag : "input",
			type : "file",
			size : 1,
			name : 'files',
			style : "position: absolute; display: none; border: none; cursor: pointer"
		}, true);
    
        for (var i = 0; i < json_response.datas.length; i++) {
			store.add(new Ext.ux.UploadDialog.FileRecord({
				state : Ext.ux.UploadDialog.FileRecord.STATE_FINISHED,
				filename : json_response.datas[i].fileName,
				note : "已上传",
				input_element : myinput_file,
				id : json_response.datas[i].id
			}));
		}
		  this.fileUploadFormWin.changeAddStat();
          this.fileUploadFormWin.changeDownZipStat();
	},

    download :  function(gridObj, rowIndex, e ) {
  
        var selRecord = gridObj.getStore().getAt(rowIndex);
        var id = selRecord.get("id");
        if (selRecord.get("state") == Ext.ux.UploadDialog.FileRecord.STATE_FINISHED && id) {
            document.location.href=this.downloadUrl + "?id=" + id;
        } else {
            Ext.Msg.alert(this.warnMsgTitle, this.invalidTypeMsg);
            return;
        }
//		var array = this.fileUploadFormWin.grid_panel.getSelectionModel()
//				.getSelections();
//		for (var i = 0; i < array.length; i++) {
//			if (array[i].get("id") == undefined) {
//				Ext.Msg.alert(this.warnMsgTitle, this.invalidTypeMsg);
//				return;
//			}
////			document.location.href = this.downloadUrl + "?id="
////					+ array[i].get("id");
//            window.open(this.downloadUrl + "?id="
//                    + array[i].get("id"));
//		}
	}

};
HM.themis.FileUploadWin = function(config) {
  Ext.apply(this, config);
}