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/*
### jQuery Multiple File Upload Plugin v 1.29 - 2008-06-26 ###
* http://www.fyneworks.com/ - diego@fyneworks.com
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
###
Project: http://jquery.com/plugins/project/MultiFile/
Website: http://www.fyneworks.com/jquery/multiple-file-upload/
*/
/*# AVOID COLLISIONS #*/
;if(jQuery) (function($){
/*# AVOID COLLISIONS #*/
// extend jQuery - $.MultiFile hook
$.extend($, {
MultiFile: function( o /* Object */ ){
//return $("INPUT[@type='file'].multi").MultiFile(o);
return $("input:file.multi").MultiFile(o);
}
});
//===
// extend $.MultiFile - default options
$.extend($.MultiFile, {
options: {
accept: '', max: -1,
// error handling function
error: function(s){
if($.blockUI){
$.blockUI({
message: s.replace(/\n/gi,'<br/>'),
css: {
border:'none', padding:'15px', size:'12.0pt',
backgroundColor:'#900', color:'#fff',
opacity:'.8','-webkit-border-radius': '10px','-moz-border-radius': '10px'
}
});
window.setTimeout($.unblockUI, 2000);
}
else{
alert(s);
}
},
// namePattern: $name/$id (from master element), $i (slave count), $g (group count)
namePattern: '$name',
// STRING: collection lets you show messages in different languages
STRING: {
remove:'remove',
denied:'You cannot select a $ext file.\nTry again...',
selected:'File selected: $file',
duplicate:'This file has already been selected:\n$file'
}
}
});
//===
// extend $.MultiFile - global methods
$.extend($.MultiFile, {
/**
* This utility makes it easy to disable all 'empty' file elements in the document before submitting a form.
* It marks the affected elements so they can be easily re-enabled after the form submission or validation.
*
* Returns a jQuery collection of all affected elements.
*
* @name disableEmpty
* @type jQuery
* @cat Plugins/Multifile
* @author Diego A. (http://www.fyneworks.com/)
*
* @example $.MultiFile.disableEmpty();
* @param String class (optional) A string specifying a class to be applied to all affected elements - Default: 'mfD'.
*/
disableEmpty: function(klass){
var o = [];
$('input:file').each(function(){ if($(this).val()=='') o[o.length] = this; });
return $(o).each(function(){ this.disabled = true }).addClass(klass || 'mfD');
},
/**
* This method re-enables 'empty' file elements that were disabled (and marked) with the $.MultiFile.disableEmpty method.
*
* Returns a jQuery collection of all affected elements.
*
* @name reEnableEmpty
* @type jQuery
* @cat Plugins/Multifile
* @author Diego A. (http://www.fyneworks.com/)
*
* @example $.MultiFile.reEnableEmpty();
* @param String klass (optional) A string specifying the class that was used to mark affected elements - Default: 'mfD'.
*/
reEnableEmpty: function(klass){
klass = klass || 'mfD';
return $('input:file.'+klass).removeClass(klass).each(function(){ this.disabled = false });
},
autoIntercept: [ 'submit', 'ajaxSubmit', 'validate' /* array of methods to intercept */ ],
intercepted: {},
intercept: function(methods, context, args){
var method, value; args = args || [];
if(args.constructor.toString().indexOf("Array")<0) args = [ args ];
if(typeof(methods)=='function'){
$.MultiFile.disableEmpty();
value = methods.apply(context || window, args);
$.MultiFile.reEnableEmpty();
return value;
};
if(methods.constructor.toString().indexOf("Array")<0) methods = [methods];
for(var i=0;i<methods.length;i++){
method = methods[i]+''; // make sure that we have a STRING
if(method) (function(method){ // make sure that method is ISOLATED for the interception
$.MultiFile.intercepted[method] = $.fn[method] || function(){};
$.fn[method] = function(){
$.MultiFile.disableEmpty();
value = $.MultiFile.intercepted[method].apply(this, arguments);
$.MultiFile.reEnableEmpty();
return value;
}; // interception
})(method); // MAKE SURE THAT method IS ISOLATED for the interception
};// for each method
}
});
//===
// extend jQuery function library
$.extend($.fn, {
// Use this function to clear values of file inputs
// But this doesn't always work: $(element).val('').attr('value', '')[0].value = '';
reset: function(){ return this.each(function(){ try{ this.reset(); }catch(e){} }); },
// MultiFile function
MultiFile: function( options /* Object */ ){
//### http://plugins.jquery.com/node/1363
// utility method to integrate this plugin with others...
if($.MultiFile.autoIntercept){
$.MultiFile.intercept( $.MultiFile.autoIntercept /* array of methods to intercept */ );
$.MultiFile.autoIntercept = null; /* only run this once */
};
//===
// Bind to each element in current jQuery object
return $(this).each(function(group_count){
if(this._MultiFile) return; this._MultiFile = true;
// BUG 1251 FIX: http://plugins.jquery.com/project/comments/add/1251
// variable group_count would repeat itself on multiple calls to the plugin.
// this would cause a conflict with multiple elements
// changes scope of variable to global so id will be unique over n calls
window.MultiFile = (window.MultiFile || 0) + 1;
group_count = window.MultiFile;
// Copy parent attributes - Thanks to Jonas Wagner
// we will use this one to create new input elements
var MF = {e:this, E:$(this), clone:$(this).clone()};
//===
//# USE CONFIGURATION
if(typeof options=='number') options = {max:options};
if(typeof options=='string') options = {accept:options};
var o = $.extend({},
$.MultiFile.options,
options || {},
($.meta ? MF.E.data()/*NEW metadata plugin*/ :
($.metadata ? MF.E.metadata()/*OLD metadata plugin*/ :
null/*metadata plugin not available*/)) || {}
);
// limit number of files that can be selected?
if(!(o.max>0) /*IsNull(MF.max)*/){
o.max = MF.E.attr('maxlength');
if(!(o.max>0) /*IsNull(MF.max)*/){
o.max = (String(MF.e.className.match(/\b(max|limit)\-([0-9]+)\b/gi) || ['']).match(/[0-9]+/gi) || [''])[0];
if(!(o.max>0)) o.max = -1;
else o.max = String(o.max).match(/[0-9]+/gi)[0];
}
};
o.max = new Number(o.max);
// limit extensions?
o.accept = o.accept || MF.E.attr('accept') || '';
if(!o.accept){
o.accept = (MF.e.className.match(/\b(accept\-[\w\|]+)\b/gi)) || '';
o.accept = new String(o.accept).replace(/^(accept|ext)\-/i,'');
};
//===
// APPLY CONFIGURATION
$.extend(MF, o || {});
MF.STRING = $.extend({},$.MultiFile.options.STRING,MF.STRING);
//===
//#########################################
// PRIVATE PROPERTIES/METHODS
$.extend(MF, {
n: 0, // How many elements are currently selected?
slaves: [], files: [],
instanceKey: MF.e.id || 'MultiFile'+String(group_count), // Instance Key?
generateID: function(z){ return MF.instanceKey + (z>0 ?'_F'+String(z):''); },
trigger: function(event, element){
var handler = MF[event], value = $(element).attr('value');
if(handler){
var returnValue = handler(element, value, MF);
if( returnValue!=null ) return returnValue;
}
return true;
}
});
//===
// Setup dynamic regular expression for extension validation
// - thanks to John-Paul Bader: http://smyck.de/2006/08/11/javascript-dynamic-regular-expresions/
if(String(MF.accept).length>1){
MF.rxAccept = new RegExp('\\.('+(MF.accept?MF.accept:'')+')$','gi');
};
//===
// Create wrapper to hold our file list
MF.wrapID = MF.instanceKey+'_wrap'; // Wrapper ID?
MF.E.wrap('<div id="'+MF.wrapID+'"></div>');
MF.wrapper = $('#'+MF.wrapID+'');
//===
// MF MUST have a name - default: file1[], file2[], file3[]
MF.e.name = MF.e.name || 'file'+ group_count +'[]';
//===
// Create a wrapper for the labels
// * OPERA BUG: NO_MODIFICATION_ALLOWED_ERR ('labels' is a read-only property)
// this changes allows us to keep the files in the order they were selected
MF.wrapper.append( '<span id="'+MF.wrapID+'_labels"></span>' );
MF.labels = $('#'+MF.wrapID+'_labels');
//===
// Bind a new element
MF.addSlave = function( slave, slave_count ){
// Keep track of how many elements have been displayed
MF.n++;
// Add reference to master element
slave.MF = MF;
// Count slaves
slave.i = slave_count;
// BUG FIX: http://plugins.jquery.com/node/1495
// Clear identifying properties from clones
if(slave.i>0) slave.id = slave.name = null;
// Define element's ID and name (upload components need this!)
slave.id = slave.id || MF.generateID(slave.i);
//slave.name = (slave.name || MF.E.attr('name') || 'file');// + (slave.i>0?slave.i:''); // same name as master element
// 2008-Apr-29: New customizable naming convention (see url below)
// http://groups.google.com/group/jquery-dev/browse_frm/thread/765c73e41b34f924#
slave.name = String(MF.namePattern
/*master name*/.replace(/\$name/gi,MF.E.attr('name'))
/*master id */.replace(/\$id/gi, MF.E.attr('id'))
/*group count*/.replace(/\$g/gi, (group_count>0?group_count:''))
/*slave count*/.replace(/\$i/gi, (slave_count>0?slave_count:''))
);
// Clear value
$(slave).val('').attr('value','')[0].value = '';
// If we've reached maximum number, disable input slave
if( (MF.max > 0) && ((MF.n-1) > (MF.max)) )//{ // MF.n Starts at 1, so subtract 1 to find true count
slave.disabled = true;
//};
// Remember most recent slave
MF.current = MF.slaves[slave.i] = slave;
// now let's use jQuery
slave = $(slave);
// Triggered when a file is selected
$(slave).change(function(){
// Lose focus to stop IE7 firing onchange again
$(this).blur();
//# Trigger Event! onFileSelect
if(!MF.trigger('onFileSelect', this, MF)) return false;
//# End Event!
//# Retrive value of selected file from element
var ERROR = '', v = String(this.value || ''/*.attr('value)*/);
// check extension
if(MF.accept){
if(v!=''){
if(!v.match(MF.rxAccept)){
ERROR = MF.STRING.denied.replace('$ext', String(v.match(/\.\w{1,4}$/gi)));
}
}
};
// Disallow duplicates
for(var f=0;f<MF.slaves.length;f++){
if(MF.slaves[f]!=this){
if(MF.slaves[f].value==v){
ERROR = MF.STRING.duplicate.replace('$file', v.match(/[^\/\\]+$/gi));
}
}
};
// Create a new file input element
//var newEle = $('<input name="'+(MF.E.attr('name') || '')+'" type="file"/>');
var newEle = $(MF.clone).clone();// Copy parent attributes - Thanks to Jonas Wagner
//# Let's remember which input we've generated so
// we can disable the empty ones before submission
// See: http://plugins.jquery.com/node/1495
newEle.addClass('MultiFile');
// Handle error
if(ERROR!=''){
// Handle error
MF.error(ERROR);
// Clear element value (DOES NOT WORK in some browsers)
//slave.reset().val('').attr('value', '')[0].value = '';
// 2007-06-24: BUG FIX - Thanks to Adrian Wróbel <adrian [dot] wrobel [at] gmail.com>
// Ditch the trouble maker and add a fresh new element
MF.n--;
MF.addSlave(newEle[0], this.i);
slave.parent().prepend(newEle);
slave.remove();
return false;
};
// Hide this element (NB: display:none is evil!)
$(this).css({ position:'absolute', top: '-3000px' });
// Add new element to the form
MF.labels.before(newEle);//.append(newEle);
// Update list
MF.addToList( this );
// Bind functionality
MF.addSlave( newEle[0], this.i+1 );
//# Trigger Event! afterFileSelect
if(!MF.trigger('afterFileSelect', this, MF)) return false;
//# End Event!
}); // slave.change()
};// MF.addSlave
// Bind a new element
// Add a new file to the list
MF.addToList = function( slave ){
//# Trigger Event! onFileAppend
if(!MF.trigger('onFileAppend', slave, MF)) return false;
//# End Event!
// Create label elements
var
r = $('<div></div>'),
v = String(slave.value || ''/*.attr('value)*/),
a = $('<span class="file" title="'+MF.STRING.selected.replace('$file', v)+'">'+v.match(/[^\/\\]+$/gi)[0]+'</span>'),
b = $('<a href="#'+MF.wrapID+'">'+MF.STRING.remove+'</a>');
// Insert label
MF.labels.append(
r.append('[', b, '] ', a)//.prepend(slave.i+': ')
);
b.click(function(){
//# Trigger Event! onFileRemove
if(!MF.trigger('onFileRemove', slave, MF)) return false;
//# End Event!
MF.n--;
MF.current.disabled = false;
// Remove element, remove label, point to current
if(slave.i==0){
$(MF.current).remove();
MF.current = slave;
}
else{
$(slave).remove();
};
$(this).parent().remove();
// Show most current element again (move into view) and clear selection
$(MF.current).css({ position:'', top: '' }).reset().val('').attr('value', '')[0].value = '';
//# Trigger Event! afterFileRemove
if(!MF.trigger('afterFileRemove', slave, MF)) return false;
//# End Event!
return false;
});
//# Trigger Event! afterFileAppend
if(!MF.trigger('afterFileAppend', slave, MF)) return false;
//# End Event!
}; // MF.addToList
// Add element to selected files list
// Bind functionality to the first element
if(!MF.MF) MF.addSlave(MF.e, 0);
// Increment control count
//MF.I++; // using window.MultiFile
MF.n++;
});
// each element
}
// MultiFile function
});
// extend jQuery function library
/*
### Default implementation ###
The plugin will attach itself to file inputs
with the class 'multi' when the page loads
*/
$(function(){ $.MultiFile() });
/*# AVOID COLLISIONS #*/
})(jQuery);
/*# AVOID COLLISIONS #*/