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Enhanced multiSelect jquery plugin.

This commit is contained in:
Thomas Tanghus 2012-12-03 18:56:15 +01:00
parent 9e6ffece64
commit 9ddd754bce
2 changed files with 122 additions and 37 deletions
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25
core/css/multiselect.css
View File

@ -5,8 +5,6 @@
ul.multiselectoptions {
background-color:#fff;
border:1px solid #ddd;
border-bottom-left-radius:.5em;
border-bottom-right-radius:.5em;
border-top:none;
box-shadow:0 1px 1px #ddd;
padding-top:.5em;
@ -14,6 +12,16 @@
z-index:49;
}
ul.multiselectoptions.down {
border-bottom-left-radius:.5em;
border-bottom-right-radius:.5em;
}
ul.multiselectoptions.up {
border-top-left-radius:.5em;
border-top-right-radius:.5em;
}
ul.multiselectoptions>li {
overflow:hidden;
white-space:nowrap;
@ -30,11 +38,20 @@
div.multiselect.active {
background-color:#fff;
position:relative;
z-index:50;
}
div.multiselect.up {
border-top:0 none;
border-top-left-radius:0;
border-top-right-radius:0;
}
div.multiselect.down {
border-bottom:none;
border-bottom-left-radius:0;
border-bottom-right-radius:0;
position:relative;
z-index:50;
}
div.multiselect>span:first-child {

134
core/js/multiselect.js
View File

@ -1,3 +1,13 @@
/**
* @param 'createCallback' A function to be called when a new entry is created. Only argument to the function is the value of the option.
* @param 'createText' The placeholder text for the create action.
* @param 'title' The title to show if no options are selected.
* @param 'checked' An array containing values for options that should be checked. Any options which are already selected will be added to this array.
* @param 'labels' The corresponding labels to show for the checked items.
* @param 'oncheck' Callback function which will be called when a checkbox/radiobutton is selected. If the function returns false the input will be unchecked.
* @param 'onuncheck' @see 'oncheck'.
* @param 'singleSelect' If true radiobuttons will be used instead of checkboxes.
*/
(function( $ ){
var multiSelectId=-1;
$.fn.multiSelect=function(options){
@ -5,16 +15,25 @@
var settings = {
'createCallback':false,
'createText':false,
'singleSelect':false,
'title':this.attr('title'),
'checked':[],
'labels':[],
'oncheck':false,
'onuncheck':false,
'minWidth': 'default;',
};
$.extend(settings,options);
$.each(this.children(),function(i,option){
if($(option).attr('selected') && settings.checked.indexOf($(option).val())==-1){
// If the option is selected, but not in the checked array, add it.
if($(option).attr('selected') && settings.checked.indexOf($(option).val()) == -1){
settings.checked.push($(option).val());
settings.labels.push($(option).text().trim());
}
// If the option is in the checked array but not selected, select it.
else if(settings.checked.indexOf($(option).val()) !== -1 && !$(option).attr('selected')){
$(option).attr('selected', 'selected');
settings.labels.push($(option).text().trim());
}
});
var button=$('<div class="multiselect button"><span>'+settings.title+'</span><span>▾</span></div>');
@ -30,18 +49,31 @@
button.css('min-width',settings.minWidth);
settings.minOuterWidth=button.outerWidth()-2;
button.data('settings',settings);
if(settings.checked.length>0){
button.children('span').first().text(settings.checked.join(', '));
if(!settings.singleSelect && settings.checked.length>0){
//button.children('span').first().text(settings.checked.join(', '));
button.children('span').first().text(settings.labels.join(', '));
} else if(settings.singleSelect) {
button.children('span').first().text(this.find(':selected').text());
}
var self = this;
self.menuDirection = 'down';
button.click(function(event){
var button=$(this);
if(button.parent().children('ul').length>0){
button.parent().children('ul').slideUp(400,function(){
button.parent().children('ul').remove();
button.removeClass('active');
});
if(self.menuDirection === 'down') {
button.parent().children('ul').slideUp(400,function(){
button.parent().children('ul').remove();
button.removeClass('active');
});
} else {
button.parent().children('ul').fadeOut(400,function(){
button.parent().children('ul').remove();
button.removeClass('active').removeClass('up');
});
}
return;
}
var lists=$('ul.multiselectoptions');
@ -54,15 +86,19 @@
event.stopPropagation();
var options=$(this).parent().next().children();
var list=$('<ul class="multiselectoptions"/>').hide().appendTo($(this).parent());
var inputType = settings.singleSelect ? 'radio' : 'checkbox';
function createItem(element,checked){
element=$(element);
var item=element.val();
var id='ms'+multiSelectId+'-option-'+item;
var input=$('<input type="checkbox"/>');
var input=$('<input type="' + inputType + '"/>');
input.attr('id',id);
if(settings.singleSelect) {
input.attr('name', 'ms'+multiSelectId+'-option');
}
var label=$('<label/>');
label.attr('for',id);
label.text(item);
label.text(element.text() || item);
if(settings.checked.indexOf(item)!=-1 || checked){
input.attr('checked',true);
}
@ -70,33 +106,41 @@
settings.checked.push(item);
}
input.change(function(){
var groupname=$(this).next().text();
var value = $(this).attr('id').substring(String('ms'+multiSelectId+'-option').length+1);
var label = $(this).next().text().trim();
if($(this).is(':checked')){
if(settings.singleSelect) {
settings.checked = [];
settings.labels = [];
$.each(self.find('option'), function() {
$(this).removeAttr('selected');
});
}
element.attr('selected','selected');
if(settings.oncheck){
if(settings.oncheck(groupname)===false){
if(settings.oncheck(value)===false){
$(this).attr('checked', false);
return;
}
}
settings.checked.push(groupname);
settings.checked.push(value);
settings.labels.push(label);
}else{
var index=settings.checked.indexOf(groupname);
var index=settings.checked.indexOf(value);
element.attr('selected',null);
if(settings.onuncheck){
if(settings.onuncheck(groupname)===false){
if(settings.onuncheck(value)===false){
$(this).attr('checked',true);
return;
}
}
settings.checked.splice(index,1);
settings.labels.splice(index,1);
}
var oldWidth=button.width();
if(settings.checked.length>0){
button.children('span').first().text(settings.checked.join(', '));
}else{
button.children('span').first().text(settings.title);
}
button.children('span').first().text(settings.labels.length > 0
? settings.labels.join(', ')
: settings.title);
var newOuterWidth=Math.max((button.outerWidth()-2),settings.minOuterWidth)+'px';
var newWidth=Math.max(button.width(),settings.minWidth);
var pos=button.position();
@ -123,7 +167,7 @@
var input=$('<input class="new">');
li.append(input);
input.focus();
input.css('width',button.width());
input.css('width',button.innerWidth());
button.parent().data('preventHide',true);
input.keypress(function(event) {
if(event.keyCode == 13) {
@ -132,7 +176,7 @@
var value = $(this).val();
var exists = false;
$.each(options,function(index, item) {
if ($(item).val() == value) {
if ($(item).val() == value || $(item).text() == value) {
exists = true;
return false;
}
@ -143,15 +187,18 @@
var li=$(this).parent();
$(this).remove();
li.text('+ '+settings.createText);
li.before(createItem(this));
li.before(createItem(this, true));
if(self.menuDirection === 'up') {
var list = li.parent();
list.css('top', list.position().top-li.outerHeight());
}
var select=button.parent().next();
var option=$('<option selected="selected"/>');
option.attr('value',value);
option.text($(this).val());
select.append(option);
option.text($(this).val());
li.prev().children('input').trigger('click');
button.parent().data('preventHide',false);
if(settings.createCallback){
if(typeof settings.createCallback === 'function'){
settings.createCallback($(this).val());
}
}
@ -169,20 +216,41 @@
list.append(li);
}
var pos=button.position();
list.css('top',pos.top+button.outerHeight()-5);
list.css('left',pos.left+3);
list.css('width',(button.outerWidth()-2)+'px');
list.slideDown();
if($(document).height() > button.offset().top+button.outerHeight() + list.children().length * button.height()) {
list.css('top',pos.top+button.outerHeight()-5);
list.css('left',pos.left+3);
list.css('width',(button.outerWidth()-2)+'px');
list.addClass('down');
button.addClass('down');
list.slideDown();
} else {
list.css('top', pos.top - list.height());
list.css('left', pos.left+3);
list.css('width',(button.outerWidth()-2)+'px');
list.detach().insertBefore($(this));
list.addClass('up');
button.addClass('up');
list.fadeIn();
self.menuDirection = 'up';
}
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');
});
// How can I save the effect in a var?
if(self.menuDirection === 'down') {
button.parent().children('ul').slideUp(400,function(){
button.parent().children('ul').remove();
button.removeClass('active').removeClass('down');
});
} else {
button.parent().children('ul').fadeOut(400,function(){
button.parent().children('ul').remove();
button.removeClass('active').removeClass('up');
});
}
}
});