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chinese-journal/yii/assets/7b3570a4/jquery.multifile.js

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trunk
2014-11-21 08:26:20 +00:00
/*
### jQuery Multiple File Upload Plugin v1.47 - 2010-03-26 ###
* Home: http://www.fyneworks.com/jquery/multiple-file-upload/
* Code: http://code.google.com/p/jquery-multifile-plugin/
*
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
###
*/
/*# AVOID COLLISIONS #*/
;if(window.jQuery) (function($){
/*# AVOID COLLISIONS #*/
// plugin initialization
$.fn.MultiFile = function(options){
if(this.length==0) return this; // quick fail
// Handle API methods
if(typeof arguments[0]=='string'){
// Perform API methods on individual elements
if(this.length>1){
var args = arguments;
return this.each(function(){
$.fn.MultiFile.apply($(this), args);
});
};
// Invoke API method handler
$.fn.MultiFile[arguments[0]].apply(this, $.makeArray(arguments).slice(1) || []);
// Quick exit...
return this;
};
// Initialize options for this call
var options = $.extend(
{}/* new object */,
$.fn.MultiFile.options/* default options */,
options || {} /* just-in-time options */
);
// Empty Element Fix!!!
// this code will automatically intercept native form submissions
// and disable empty file elements
$('form')
.not('MultiFile-intercepted')
.addClass('MultiFile-intercepted')
.submit($.fn.MultiFile.disableEmpty);
//### http://plugins.jquery.com/node/1363
// utility method to integrate this plugin with others...
if($.fn.MultiFile.options.autoIntercept){
$.fn.MultiFile.intercept( $.fn.MultiFile.options.autoIntercept /* array of methods to intercept */ );
$.fn.MultiFile.options.autoIntercept = null; /* only run this once */
};
// loop through each matched element
this
.not('.MultiFile-applied')
.addClass('MultiFile-applied')
.each(function(){
//#####################################################################
// MAIN PLUGIN FUNCTIONALITY - START
//#####################################################################
// BUG 1251 FIX: http://plugins.jquery.com/project/comments/add/1251
// variable group_count would repeat itself on multiple calls to the plugin.
// this would cause a conflict with multiple elements
// changes scope of variable to global so id will be unique over n calls
window.MultiFile = (window.MultiFile || 0) + 1;
var group_count = window.MultiFile;
// Copy parent attributes - Thanks to Jonas Wagner
// we will use this one to create new input elements
var MultiFile = {e:this, E:$(this), clone:$(this).clone()};
//===
//# USE CONFIGURATION
if(typeof options=='number') options = {max:options};
var o = $.extend({},
$.fn.MultiFile.options,
options || {},
($.metadata? MultiFile.E.metadata(): ($.meta?MultiFile.E.data():null)) || {}, /* metadata options */
{} /* internals */
);
// limit number of files that can be selected?
if(!(o.max>0) /*IsNull(MultiFile.max)*/){
o.max = MultiFile.E.attr('maxlength');
if(!(o.max>0) /*IsNull(MultiFile.max)*/){
o.max = (String(MultiFile.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 || MultiFile.E.attr('accept') || '';
if(!o.accept){
o.accept = (MultiFile.e.className.match(/\b(accept\-[\w\|]+)\b/gi)) || '';
o.accept = new String(o.accept).replace(/^(accept|ext)\-/i,'');
};
//===
// APPLY CONFIGURATION
$.extend(MultiFile, o || {});
MultiFile.STRING = $.extend({},$.fn.MultiFile.options.STRING,MultiFile.STRING);
//===
//#########################################
// PRIVATE PROPERTIES/METHODS
$.extend(MultiFile, {
n: 0, // How many elements are currently selected?
slaves: [], files: [],
instanceKey: MultiFile.e.id || 'MultiFile'+String(group_count), // Instance Key?
generateID: function(z){ return MultiFile.instanceKey + (z>0 ?'_F'+String(z):''); },
trigger: function(event, element){
var handler = MultiFile[event], value = $(element).attr('value');
if(handler){
var returnValue = handler(element, value, MultiFile);
if( returnValue!=null ) return returnValue;
}
return true;
}
});
//===
// Setup dynamic regular expression for extension validation
// - thanks to John-Paul Bader: http://smyck.de/2006/08/11/javascript-dynamic-regular-expresions/
if(String(MultiFile.accept).length>1){
MultiFile.accept = MultiFile.accept.replace(/\W+/g,'|').replace(/^\W|\W$/g,'');
MultiFile.rxAccept = new RegExp('\\.('+(MultiFile.accept?MultiFile.accept:'')+')$','gi');
};
//===
// Create wrapper to hold our file list
MultiFile.wrapID = MultiFile.instanceKey+'_wrap'; // Wrapper ID?
MultiFile.E.wrap('<div class="MultiFile-wrap" id="'+MultiFile.wrapID+'"></div>');
MultiFile.wrapper = $('#'+MultiFile.wrapID+'');
//===
// MultiFile MUST have a name - default: file1[], file2[], file3[]
MultiFile.e.name = MultiFile.e.name || 'file'+ group_count +'[]';
//===
if(!MultiFile.list){
// Create a wrapper for the list
// * OPERA BUG: NO_MODIFICATION_ALLOWED_ERR ('list' is a read-only property)
// this change allows us to keep the files in the order they were selected
MultiFile.wrapper.append( '<div class="MultiFile-list" id="'+MultiFile.wrapID+'_list"></div>' );
MultiFile.list = $('#'+MultiFile.wrapID+'_list');
};
MultiFile.list = $(MultiFile.list);
//===
// Bind a new element
MultiFile.addSlave = function( slave, slave_count ){
//if(window.console) console.log('MultiFile.addSlave',slave_count);
// Keep track of how many elements have been displayed
MultiFile.n++;
// Add reference to master element
slave.MultiFile = MultiFile;
// BUG FIX: http://plugins.jquery.com/node/1495
// Clear identifying properties from clones
if(slave_count>0) slave.id = slave.name = '';
// Define element's ID and name (upload components need this!)
//slave.id = slave.id || MultiFile.generateID(slave_count);
if(slave_count>0) slave.id = MultiFile.generateID(slave_count);
//FIX for: http://code.google.com/p/jquery-multifile-plugin/issues/detail?id=23
// 2008-Apr-29: New customizable naming convention (see url below)
// http://groups.google.com/group/jquery-dev/browse_frm/thread/765c73e41b34f924#
slave.name = String(MultiFile.namePattern
/*master name*/.replace(/\$name/gi,$(MultiFile.clone).attr('name'))
/*master id */.replace(/\$id/gi, $(MultiFile.clone).attr('id'))
/*group count*/.replace(/\$g/gi, group_count)//(group_count>0?group_count:''))
/*slave count*/.replace(/\$i/gi, slave_count)//(slave_count>0?slave_count:''))
);
// If we've reached maximum number, disable input slave
if( (MultiFile.max > 0) && ((MultiFile.n-1) > (MultiFile.max)) )//{ // MultiFile.n Starts at 1, so subtract 1 to find true count
slave.disabled = true;
//};
// Remember most recent slave
MultiFile.current = MultiFile.slaves[slave_count] = slave;
// We'll use jQuery from now on
slave = $(slave);
// Clear value
slave.val('').attr('value','')[0].value = '';
// Stop plugin initializing on slaves
slave.addClass('MultiFile-applied');
// Triggered when a file is selected
slave.change(function(){
//if(window.console) console.log('MultiFile.slave.change',slave_count);
// Lose focus to stop IE7 firing onchange again
$(this).blur();
//# Trigger Event! onFileSelect
if(!MultiFile.trigger('onFileSelect', this, MultiFile)) return false;
//# End Event!
//# Retrive value of selected file from element
var ERROR = '', v = String(this.value || ''/*.attr('value)*/);
// check extension
if(MultiFile.accept && v && !v.match(MultiFile.rxAccept))//{
ERROR = MultiFile.STRING.denied.replace('$ext', String(v.match(/\.\w{1,4}$/gi)));
//}
//};
// Disallow duplicates
for(var f in MultiFile.slaves)//{
if(MultiFile.slaves[f] && MultiFile.slaves[f]!=this)//{
//console.log(MultiFile.slaves[f],MultiFile.slaves[f].value);
if(MultiFile.slaves[f].value==v)//{
ERROR = MultiFile.STRING.duplicate.replace('$file', v.match(/[^\/\\]+$/gi));
//};
//};
//};
// Create a new file input element
var newEle = $(MultiFile.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
MultiFile.error(ERROR);
// 2007-06-24: BUG FIX - Thanks to Adrian Wr<57>bel <adrian [dot] wrobel [at] gmail.com>
// Ditch the trouble maker and add a fresh new element
MultiFile.n--;
MultiFile.addSlave(newEle[0], slave_count);
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
slave.after(newEle);
// Update list
MultiFile.addToList( this, slave_count );
// Bind functionality
MultiFile.addSlave( newEle[0], slave_count+1 );
//# Trigger Event! afterFileSelect
if(!MultiFile.trigger('afterFileSelect', this, MultiFile)) return false;
//# End Event!
}); // slave.change()
// Save control to element
$(slave).data('MultiFile', MultiFile);
};// MultiFile.addSlave
// Bind a new element
// Add a new file to the list
MultiFile.addToList = function( slave, slave_count ){
//if(window.console) console.log('MultiFile.addToList',slave_count);
//# Trigger Event! onFileAppend
if(!MultiFile.trigger('onFileAppend', slave, MultiFile)) return false;
//# End Event!
// Create label elements
var
r = $('<div class="MultiFile-label"></div>'),
v = String(slave.value || ''/*.attr('value)*/),
a = $('<span class="MultiFile-title" title="'+MultiFile.STRING.selected.replace('$file', v)+'">'+MultiFile.STRING.file.replace('$file', v.match(/[^\/\\]+$/gi)[0])+'</span>'),
b = $('<a class="MultiFile-remove" href="#'+MultiFile.wrapID+'">'+MultiFile.STRING.remove+'</a>');
// Insert label
MultiFile.list.append(
r.append(b, ' ', a)
);
b
.click(function(){
//# Trigger Event! onFileRemove
if(!MultiFile.trigger('onFileRemove', slave, MultiFile)) return false;
//# End Event!
MultiFile.n--;
MultiFile.current.disabled = false;
// Remove element, remove label, point to current
MultiFile.slaves[slave_count] = null;
$(slave).remove();
$(this).parent().remove();
// Show most current element again (move into view) and clear selection
$(MultiFile.current).css({ position:'', top: '' });
$(MultiFile.current).reset().val('').attr('value', '')[0].value = '';
//# Trigger Event! afterFileRemove
if(!MultiFile.trigger('afterFileRemove', slave, MultiFile)) return false;
//# End Event!
return false;
});
//# Trigger Event! afterFileAppend
if(!MultiFile.trigger('afterFileAppend', slave, MultiFile)) return false;
//# End Event!
}; // MultiFile.addToList
// Add element to selected files list
// Bind functionality to the first element
if(!MultiFile.MultiFile) MultiFile.addSlave(MultiFile.e, 0);
// Increment control count
//MultiFile.I++; // using window.MultiFile
MultiFile.n++;
// Save control to element
MultiFile.E.data('MultiFile', MultiFile);
//#####################################################################
// MAIN PLUGIN FUNCTIONALITY - END
//#####################################################################
}); // each element
};
/*--------------------------------------------------------*/
/*
### Core functionality and API ###
*/
$.extend($.fn.MultiFile, {
/**
* This method removes all selected files
*
* Returns a jQuery collection of all affected elements.
*
* @name reset
* @type jQuery
* @cat Plugins/MultiFile
* @author Diego A. (http://www.fyneworks.com/)
*
* @example $.fn.MultiFile.reset();
*/
reset: function(){
var settings = $(this).data('MultiFile');
//if(settings) settings.wrapper.find('a.MultiFile-remove').click();
if(settings) settings.list.find('a.MultiFile-remove').click();
return $(this);
},
/**
* 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 $.fn.MultiFile.disableEmpty();
* @param String class (optional) A string specifying a class to be applied to all affected elements - Default: 'mfD'.
*/
disableEmpty: function(klass){ klass = (typeof(klass)=='string'?klass:'')||'mfD';
var o = [];
$('input:file.MultiFile').each(function(){ if($(this).val()=='') o[o.length] = this; });
return $(o).each(function(){ this.disabled = true }).addClass(klass);
},
/**
* This method re-enables 'empty' file elements that were disabled (and marked) with the $.fn.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 $.fn.MultiFile.reEnableEmpty();
* @param String klass (optional) A string specifying the class that was used to mark affected elements - Default: 'mfD'.
*/
reEnableEmpty: function(klass){ klass = (typeof(klass)=='string'?klass:'')||'mfD';
return $('input:file.'+klass).removeClass(klass).each(function(){ this.disabled = false });
},
/**
* This method will intercept other jQuery plugins and disable empty file input elements prior to form submission
*
* @name intercept
* @cat Plugins/MultiFile
* @author Diego A. (http://www.fyneworks.com/)
*
* @example $.fn.MultiFile.intercept();
* @param Array methods (optional) Array of method names to be intercepted
*/
intercepted: {},
intercept: function(methods, context, args){
var method, value; args = args || [];
if(args.constructor.toString().indexOf("Array")<0) args = [ args ];
if(typeof(methods)=='function'){
$.fn.MultiFile.disableEmpty();
value = methods.apply(context || window, args);
//SEE-http://code.google.com/p/jquery-multifile-plugin/issues/detail?id=27
setTimeout(function(){ $.fn.MultiFile.reEnableEmpty() },1000);
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
$.fn.MultiFile.intercepted[method] = $.fn[method] || function(){};
$.fn[method] = function(){
$.fn.MultiFile.disableEmpty();
value = $.fn.MultiFile.intercepted[method].apply(this, arguments);
//SEE-http://code.google.com/p/jquery-multifile-plugin/issues/detail?id=27
setTimeout(function(){ $.fn.MultiFile.reEnableEmpty() },1000);
return value;
}; // interception
})(method); // MAKE SURE THAT method IS ISOLATED for the interception
};// for each method
} // $.fn.MultiFile.intercept
});
/*--------------------------------------------------------*/
/*
### Default Settings ###
eg.: You can override default control like this:
$.fn.MultiFile.options.accept = 'gif|jpg';
*/
$.fn.MultiFile.options = { //$.extend($.fn.MultiFile, { options: {
accept: '', // accepted file extensions
max: -1, // maximum number of selectable files
// name to use for newly created elements
namePattern: '$name', // same name by default (which creates an array)
// STRING: collection lets you show messages in different languages
STRING: {
remove:'x',
denied:'You cannot select a $ext file.\nTry again...',
file:'$file',
selected:'File selected: $file',
duplicate:'This file has already been selected:\n$file'
},
// name of methods that should be automcatically intercepted so the plugin can disable
// extra file elements that are empty before execution and automatically re-enable them afterwards
autoIntercept: [ 'submit', 'ajaxSubmit', 'ajaxForm', 'validate', 'valid' /* array of methods to intercept */ ],
// error handling function
error: function(s){
/*
ERROR! blockUI is not currently working in IE
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//{// save a byte!
*/
alert(s);
//}// save a byte!
}
}; //} });
/*--------------------------------------------------------*/
/*
### Additional Methods ###
Required functionality outside the plugin's scope
*/
// Native input reset method - because this alone doesn't always work: $(element).val('').attr('value', '')[0].value = '';
$.fn.reset = function(){ return this.each(function(){ try{ this.reset(); }catch(e){} }); };
/*--------------------------------------------------------*/
/*
### Default implementation ###
The plugin will attach itself to file inputs
with the class 'multi' when the page loads
*/
$(function(){
//$("input:file.multi").MultiFile();
$("input[type=file].multi").MultiFile();
});
/*# AVOID COLLISIONS #*/
})(jQuery);
/*# AVOID COLLISIONS #*/
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