uploader.js

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var uploader;

function createUploader(ids,functions)
{
	var image_filter=['jpg', 'jpeg', 'png', 'gif', 'bmp' ];
	var image_string= " jpg, jpeg, png, gif, bmp ";
	
	var params='&type='+ids;
			
	uploader = new qq.FileUploader({
		element: document.getElementById(ids),
		action: ajax_url+"?action=uploadImage&"+params+"&tbl",
		debug: false,
		onSubmit: function(id, fileName){
			
			  jQuery("."+ids+"_status_bar").css( { width: "1%" } );
			  
			  var ext = fileName.split('.').pop().toLowerCase();
			  var filter=null;
			  var filtermsg=null;

filter=image_filter;
			  filtermsg=image_string;
			  
			  			  
			  if(jQuery.inArray(ext,filter) == -1) {
					  alert(fileName + " has invalid extension. Only "+ filtermsg + "are allowed.");					  
					  return false;
			  }
			  
			  jQuery(".qq-upload-list").hide();			  
			  jQuery("."+ids+"_chart_status").show();
			 
			  ShowHideCancelUpload(ids,true);
			  
		 },
		onProgress: function(id, fileName, loaded, total){			
		   var percentage= loaded/total;
		   percentage=percentage*100;
		   var percent=percentage.toFixed(0);
		   		   
		   var loadedInMB = bytesToSize(loaded,2); //(loaded / (1024*1024)).toFixed(2);
		   var totalInMB =  bytesToSize(total,2); //(total / (1024*1024)).toFixed(2);

/**
* @name ShowHideCancelUpload
*/
function ShowHideCancelUpload(ids,a)
{	
    if (ids=="btnchart"){
	    if (a){
			jQuery("#cancelChart").show();
		}else{
			jQuery("#cancelChart").hide();
		}
    } else {
		 if (a){
			jQuery("#cancelvideo").show();
		}else{
			jQuery("#cancelvideo").hide();
		}
  	}
}
/*END: ShowHideCancelUpload*/

/**
* @name cancelUpload
*/
function cancelUpload(ids)
{	
	    
    if (ids=="btnchart"){
		uploader_chart._handler.cancelAll();		
	} else {
		uploader._handler.cancelAll();		
	}
		
}

/**
 * Convert number of bytes into human readable format
 *
 * @param integer bytes     Number of bytes to convert
 * @param integer precision Number of digits after the decimal separator
 * @return string
 */
function bytesToSize(bytes, precision)
{	
	var kilobyte = 1024;
	var megabyte = kilobyte * 1024;
	var gigabyte = megabyte * 1024;
	var terabyte = gigabyte * 1024;
	
	if ((bytes >= 0) && (bytes < kilobyte)) {
		return bytes + ' B';

} else if ((bytes >= kilobyte) && (bytes < megabyte)) {
		return (bytes / kilobyte).toFixed(precision) + ' KB';

} else if ((bytes >= megabyte) && (bytes < gigabyte)) {
		return (bytes / megabyte).toFixed(precision) + ' MB';

} else if ((bytes >= gigabyte) && (bytes < terabyte)) {
		return (bytes / gigabyte).toFixed(precision) + ' GB';

} else if (bytes >= terabyte) {
		return (bytes / terabyte).toFixed(precision) + ' TB';

} else {
		return bytes + ' B';
	}
}
/*END: bytesToSize*/