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// $Header: /cvsroot/bitweaver/_bit_util/javascript/libs/multifile.js,v 1.5 2007/07/09 18:29:25 squareing Exp $
// please modify this file and leave plenty of comments. This file will be
// compressed automatically. Please make sure you only use comments beginning
// with '//' and put comments on separate lines otherwise the packer will choke
// Multiple file selector by Stickman -- http://www.the-stickman.com
function MultiSelector( list_target, max ){
this.list_target = list_target;
this.count = 0;
this.id = 0;
if( max ){
this.max = max;
} else {
this.max = -1;
};
// BitMod allow us to know what the maximum for each named item is.
this.max_elements = Array();
// BitMod allow us to add elements that are disabled and enabled in unison
this.disable_array = Array();
// BitMod Added setType to allow us to add something besides a div.
this.type = 'file';
this.addDisableElement = function(element) {
this.disable_array[element] = element;
};
this.setType = function(type) {
this.type = type;
};
// BitMod Added to allow us to include a title textbox
this.includeText = 0;
this.setIncludeText = function(include) {
this.includeText = include;
};
// BitMod Added to allow us to set the new item dragable
this.makeDragable = 0;
this.setMakeDragable = function(drag) {
this.makeDragable = drag;
};
// BitMod Added addNamedElement function to allow us to name these.
// Thus we can have multiple on the same form
this.addNamedElement = function(element, name) {
// BitMod We need a way to tell where the end is to avoid an infinite
// loop when processing the uploads because ones in the middle may get removed
// so we can't reliably tell when we hit the end without some magic
if(name in this.max_elements) {
this.max_elements[name].value = this.id;
}
else {
var max_element = document.createElement('input');
max_element.type = 'hidden';
max_element.name = name + '_max';
max_element.value = this.count;
this.max_elements[name] = max_element;
this.list_target.appendChild(max_element);
};
if( element.tagName == 'INPUT' && element.type == 'file' ){
element.base_name = name;
element.name = name + '_' + this.id++;
element.multi_selector = this;
element.onchange = function(){
var new_element = document.createElement( 'input' );
new_element.type = 'file';
this.parentNode.insertBefore( new_element, this );
this.multi_selector.addNamedElement( new_element, element.base_name);
this.multi_selector.addListRow( this , element.name);
this.style.position = 'absolute';
this.style.left = '-1000px';
};
if( this.max != -1 && this.count >= this.max ){
element.disabled = true;
for (var item in this.disable_array) {
var elem = document.getElementById(item);
if (elem) {
elem.disabled = true;
}
}
};
this.count++;
this.current_element = element;
} else {
alert( 'Error: not a file input element' );
};
};
this.addElement = function( element ){
this.addNamedElement(element, 'file');
};
this.addListRow = function( element , name){
// BitMod create by type and set id so we can use it
// in a drag and drop li.
var new_row = document.createElement( this.type );
if (this.makeDragable) {
DragDrop.makeItemDragable(new_row);
};
new_row.id = name;
var new_row_button = document.createElement( 'input' );
new_row_button.type = 'button';
new_row_button.value = 'Remove';
new_row.element = element;
new_row_button.onclick= function(){
this.parentNode.element.parentNode.removeChild( this.parentNode.element );
this.parentNode.parentNode.removeChild( this.parentNode );
this.parentNode.element.multi_selector.count--;
this.parentNode.element.multi_selector.current_element.disabled = false;
for (var item in this.parentNode.element.multi_selector.disable_array) {
var elem = document.getElementById(item);
if (elem) {
elem.disabled = false;
};
};
return false;
};
new_row.innerHTML = '<span>'+element.value+'</span>';
// BitMod to allow us to add a text box
if (this.includeText) {
new_row.innerHTML += "<br />";
var new_row_text = document.createElement( 'input' );
new_row_text.type = 'text';
new_row_text.name = name + '_text';
new_row.appendChild(new_row_text);
};
new_row.appendChild( new_row_button );
this.list_target.appendChild( new_row );
};
};
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