1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
|
/**
* @param 'createCallback' A function to be called when a new entry is created. Two arguments are supplied to this function:
* The select element used and the value of the option. If the function returns false addition will be cancelled. If it returns
* anything else it will be used as the value of the newly added 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) {
multiSelectId++;
var settings = {
'createCallback':false,
'createText':false,
'singleSelect':false,
'selectedFirst':false,
'sort':true,
'title':this.attr('title'),
'checked':[],
'labels':[],
'oncheck':false,
'onuncheck':false,
'minWidth': 'default;',
};
$(this).attr('data-msid', multiSelectId);
$.extend(settings,options);
$.each(this.children(),function(i,option) {
// If the option is selected, but not in the checked array, add it.
if($(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=$('<div class="multiselect button"><span>'+settings.title+'</span><span>▾</span></div>');
var span=$('<span/>');
span.append(button);
button.data('id',multiSelectId);
button.selectedItems=[];
this.hide();
this.before(span);
if(settings.minWidth=='default') {
settings.minWidth=button.width();
}
button.css('min-width',settings.minWidth);
settings.minOuterWidth=button.outerWidth()-2;
button.data('settings',settings);
if(!settings.singleSelect && settings.checked.length>0) {
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=$(this);
if(button.parent().children('ul').length>0) {
if(self.menuDirection === 'down') {
button.parent().children('ul').slideUp(400,function() {
button.parent().children('ul').remove();
button.removeClass('active down');
});
} else {
button.parent().children('ul').fadeOut(400,function() {
button.parent().children('ul').remove();
button.removeClass('active up');
});
}
return;
}
var lists=$('ul.multiselectoptions');
lists.slideUp(400,function(){
lists.remove();
$('div.multiselect').removeClass('active');
button.addClass('active');
});
button.addClass('active');
event.stopPropagation();
var options=$(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="' + inputType + '"/>');
input.attr('id',id);
if(settings.singleSelect) {
input.attr('name', 'ms'+multiSelectId+'-option');
}
var label=$('<label/>');
label.attr('for',id);
label.text(element.text() || item);
if(settings.checked.indexOf(item)!=-1 || checked) {
input.attr('checked', true);
}
if(checked){
if(settings.singleSelect) {
settings.checked = [item];
settings.labels = [item];
} else {
settings.checked.push(item);
settings.labels.push(item);
}
}
input.change(function(){
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(typeof settings.oncheck === 'function') {
if(settings.oncheck(value)===false) {
$(this).attr('checked', false);
return;
}
}
settings.checked.push(value);
settings.labels.push(label);
$(this).parent().addClass('checked');
} else {
var index=settings.checked.indexOf(value);
element.attr('selected',null);
if(typeof settings.onuncheck === 'function') {
if(settings.onuncheck(value)===false) {
$(this).attr('checked',true);
return;
}
}
$(this).parent().removeClass('checked');
settings.checked.splice(index,1);
settings.labels.splice(index,1);
}
var oldWidth=button.width();
button.children('span').first().text(settings.labels.length > 0
? settings.labels.join(', ')
: settings.title);
var newOuterWidth=Math.max((button.outerWidth()-2),settings.minOuterWidth)+'px';
var newWidth=Math.max(button.width(),settings.minWidth);
var pos=button.position();
button.css('height',button.height());
button.css('white-space','nowrap');
button.css('width',oldWidth);
button.animate({'width':newWidth},undefined,undefined,function(){
button.css('width','');
});
list.animate({'width':newOuterWidth,'left':pos.left+3});
});
var li=$('<li></li>');
li.append(input).append(label);
if(input.is(':checked')) {
li.addClass('checked');
}
return li;
}
$.each(options,function(index,item){
list.append(createItem(item));
});
button.parent().data('preventHide',false);
if(settings.createText){
var li=$('<li class="creator">+ '+settings.createText+'</li>');
li.click(function(event){
li.empty();
var input=$('<input type="text" class="new">');
li.append(input);
input.focus();
input.css('width',button.innerWidth());
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 || $(item).text() == value) {
exists = true;
return false;
}
});
if (exists) {
return false;
}
var li=$(this).parent();
var val = $(this).val()
var select=button.parent().next();
if(typeof settings.createCallback === 'function') {
var response = settings.createCallback(select, val);
if(response === false) {
return false;
} else if(typeof response !== 'undefined') {
val = response;
}
}
if(settings.singleSelect) {
$.each(select.find('option:selected'), function() {
$(this).removeAttr('selected');
});
}
$(this).remove();
li.text('+ '+settings.createText);
li.before(createItem(this));
var option=$('<option selected="selected"/>');
option.text($(this).val()).val(val).attr('selected', 'selected');
select.append(option);
li.prev().children('input').prop('checked', true).trigger('change');
button.parent().data('preventHide',false);
button.children('span').first().text(settings.labels.length > 0
? settings.labels.join(', ')
: settings.title);
if(self.menuDirection === 'up') {
var list = li.parent();
list.css('top', list.position().top-li.outerHeight());
}
}
});
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 doSort = function(list, selector) {
var rows = list.find('li'+selector).get();
if(settings.sort) {
rows.sort(function(a, b) {
return $(a).text().toUpperCase().localeCompare($(b).text().toUpperCase());
});
}
$.each(rows, function(index, row) {
list.append(row);
});
};
if(settings.sort && settings.selectedFirst) {
doSort(list, '.checked');
doSort(list, ':not(.checked)');
} else if(settings.sort && !settings.selectedFirst) {
doSort(list, '');
}
list.append(list.find('li.creator'));
var pos=button.position();
if(($(document).height() > (button.offset().top+button.outerHeight() + list.children().length * button.height())
&& $(document).height() - button.offset().top > (button.offset().top+button.outerHeight() + list.children().length * button.height()))
|| $(document).height()/2 > button.offset().top
) {
list.css({
top:pos.top+button.outerHeight()-5,
left:pos.left+3,
width:(button.outerWidth()-2)+'px',
'max-height':($(document).height()-(button.offset().top+button.outerHeight()+10))+'px'
});
list.addClass('down');
button.addClass('down');
list.slideDown();
} else {
list.css('max-height', $(document).height()-($(document).height()-(pos.top)+50)+'px');
list.css({
top:pos.top - list.height(),
left:pos.left+3,
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')) {
// 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 down');
});
} else {
button.parent().children('ul').fadeOut(400,function() {
button.parent().children('ul').remove();
button.removeClass('active up');
});
}
}
});
return span;
};
})( jQuery );
|
