server/core/js/multiselect.js

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(function( $ ){
var multiSelectId=-1;
$.fn.multiSelect=function(options){
multiSelectId++;
var settings = {
'createCallback':false,
'createText':false,
'title':this.attr('title'),
'checked':[],
'oncheck':false,
'onuncheck':false,
'minWidth': 'default;',
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};
$.extend(settings,options);
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$.each(this.children(),function(i,option){
if($(option).attr('selected') && settings.checked.indexOf($(option).val())==-1){
settings.checked.push($(option).val());
}
});
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var button=$('<div class="multiselect button"><span>'+settings.title+'</span><span>▾</span></div>');
var span=$('<span/>');
span.append(button);
button.data('id',multiSelectId);
button.selectedItems=[];
this.hide();
this.before(span);
if(settings.minWidth=='default'){
settings.minWidth=button.width();
}
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button.css('min-width',settings.minWidth);
settings.minOuterWidth=button.outerWidth()-2;
button.data('settings',settings);
if(settings.checked.length>0){
button.children('span').first().text(settings.checked.join(', '));
}
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button.click(function(event){
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var button=$(this);
if(button.parent().children('ul').length>0){
button.parent().children('ul').slideUp(400,function(){
button.parent().children('ul').remove();
button.removeClass('active');
});
return;
}
var lists=$('ul.multiselectoptions');
lists.slideUp(400,function(){
lists.remove();
$('div.multiselect').removeClass('active');
button.addClass('active');
});
button.addClass('active');
event.stopPropagation();
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var options=$(this).parent().next().children();
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var list=$('<ul class="multiselectoptions"/>').hide().appendTo($(this).parent());
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function createItem(element,checked){
element=$(element);
var item=element.val();
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var id='ms'+multiSelectId+'-option-'+item;
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var input=$('<input type="checkbox"/>');
input.attr('id',id);
var label=$('<label/>');
label.attr('for',id);
label.text(item);
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if(settings.checked.indexOf(item)!=-1 || checked){
input.attr('checked',true);
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}
if(checked){
settings.checked.push(item);
}
input.change(function(){
var groupname=$(this).next().text();
if($(this).is(':checked')){
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element.attr('selected','selected');
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if(settings.oncheck){
if(settings.oncheck(groupname)===false){
$(this).attr('checked', false);
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return;
}
}
settings.checked.push(groupname);
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}else{
var index=settings.checked.indexOf(groupname);
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element.attr('selected',null);
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if(settings.onuncheck){
if(settings.onuncheck(groupname)===false){
$(this).attr('checked',true);
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return;
}
}
settings.checked.splice(index,1);
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}
var oldWidth=button.width();
if(settings.checked.length>0){
button.children('span').first().text(settings.checked.join(', '));
}else{
button.children('span').first().text(settings.title);
}
var newOuterWidth=Math.max((button.outerWidth()-2),settings.minOuterWidth)+'px';
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var newWidth=Math.max(button.width(),settings.minWidth);
var pos=button.position();
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button.css('height',button.height());
button.css('white-space','nowrap');
button.css('width',oldWidth);
button.animate({'width':newWidth},undefined,undefined,function(){
button.css('width','');
});
list.animate({'width':newOuterWidth,'left':pos.left+3});
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});
var li=$('<li></li>');
li.append(input).append(label);
return li;
}
$.each(options,function(index,item){
list.append(createItem(item));
});
button.parent().data('preventHide',false);
if(settings.createText){
var li=$('<li>+ <em>'+settings.createText+'<em></li>');
li.click(function(event){
li.empty();
var input=$('<input class="new">');
li.append(input);
input.focus();
input.css('width',button.width());
button.parent().data('preventHide',true);
input.keypress(function(event) {
if(event.keyCode == 13) {
event.preventDefault();
event.stopPropagation();
var value = $(this).val();
var exists = false;
$.each(options,function(index, item) {
if ($(item).val() == value) {
exists = true;
return false;
}
});
if (exists) {
return false;
}
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var li=$(this).parent();
$(this).remove();
li.text('+ '+settings.createText);
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li.before(createItem(this));
var select=button.parent().next();
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var option=$('<option selected="selected"/>');
option.attr('value',value);
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option.text($(this).val());
select.append(option);
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li.prev().children('input').trigger('click');
button.parent().data('preventHide',false);
if(settings.createCallback){
settings.createCallback($(this).val());
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}
}
});
input.blur(function(){
event.preventDefault();
event.stopPropagation();
$(this).remove();
li.text('+ '+settings.createText);
setTimeout(function(){
button.parent().data('preventHide',false);
},100);
});
});
list.append(li);
}
var pos=button.position();
list.css('top',pos.top+button.outerHeight()-5);
list.css('left',pos.left+3);
list.css('width',(button.outerWidth()-2)+'px');
list.slideDown();
list.click(function(event){
event.stopPropagation();
});
});
$(window).click(function(){
if(!button.parent().data('preventHide')){
button.parent().children('ul').slideUp(400,function(){
button.parent().children('ul').remove();
button.removeClass('active');
});
}
});
return span;
};
})( jQuery );