forked from liferay/yui3-gallery
/
CheckboxGroup.js
183 lines (161 loc) · 3.5 KB
/
CheckboxGroup.js
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
"use strict";
var Direction =
{
SLIDE_UP: 0,
SLIDE_DOWN: 1
};
/**********************************************************************
* <p>Base class for enforcing constraints on groups of checkboxes.</p>
*
* <p>Derived classes must override <code>enforceConstraints()</code>.</p>
*
* @module gallery-checkboxgroups
* @class CheckboxGroup
* @constructor
* @param cb_list {String|Object|Array} The list of checkboxes to manage
*/
function CheckboxGroup(
/* string/object/array */ cb_list)
{
if (arguments.length === 0) // derived class prototype
{
return;
}
this.cb_list = [];
this.ev_list = [];
this.splice(0, 0, cb_list);
this.direction = Direction.SLIDE_UP;
this.ignore_change = false;
}
function checkboxChanged(
/* event */ e,
/* object */ obj)
{
this.checkboxChanged(e.target);
}
CheckboxGroup.prototype =
{
/**
* @return {Array} List of managed checkboxes
*/
getCheckboxList: function()
{
return this.cb_list;
},
/**
* Same functionality as <code>Array.splice()</code>. Operates on the
* list of managed checkboxes.
*
* @param start {Int} Insertion index
* @param delete_count {Int} Number of items to remove, starting from <code>start</code>
* @param cb_list {String|Object|Array} The list of checkboxes to insert at <code>start</code>
*/
splice: function(
/* int */ start,
/* int */ delete_count,
/* string/object/array */ cb_list)
{
for (var i=start; i<delete_count; i++)
{
this.ev_list[i].detach();
}
if (Y.Lang.isString(cb_list))
{
var node_list = Y.all(cb_list);
cb_list = [];
node_list.each(function(cb)
{
this.push(cb);
},
cb_list);
}
if (cb_list && Y.Lang.isNumber(cb_list.length))
{
for (i=0; i<cb_list.length; i++)
{
var j=start+i, k=(i===0 ? delete_count : 0);
this.cb_list.splice(j, k, Y.one(cb_list[i]));
this.ev_list.splice(j, k, this.cb_list[j].on('click', checkboxChanged, this));
}
}
else
{
this.cb_list.splice(start, delete_count);
this.ev_list.splice(start, delete_count);
}
},
checkboxChanged: function(
/* checkbox */ cb)
{
if (this.ignore_change || !this.cb_list.length || this.allDisabled())
{
return;
}
cb = Y.one(cb);
var count = this.cb_list.length;
for (var i=0; i<count; i++)
{
if (cb == this.cb_list[i])
{
this.enforceConstraints(this.cb_list, i);
}
}
},
/**
* Derived classes must override this function to implement the desired behavior.
*
* @param cb_list {String|Object|Array} The list of checkboxes
* @param index {Int} The index of the checkbox that changed
*/
enforceConstraints: function(
/* array */ cb_list,
/* int */ index)
{
},
/**
* @return {boolean} <code>true</code> if all checkboxes are checked
*/
allChecked: function()
{
var count = this.cb_list.length;
for (var i=0; i<count; i++)
{
if (!this.cb_list[i].get('disabled') && !this.cb_list[i].get('checked'))
{
return false;
}
}
return true;
},
/**
* @return {boolean} <code>true</code> if all checkboxes are unchecked
*/
allUnchecked: function()
{
var count = this.cb_list.length;
for (var i=0; i<count; i++)
{
if (this.cb_list[i].get('checked'))
{
return false;
}
}
return true;
},
/**
* @return {boolean} <code>true</code> if all checkboxes are disabled
*/
allDisabled: function()
{
var count = this.cb_list.length;
for (var i=0; i<count; i++)
{
if (!this.cb_list[i].get('disabled'))
{
return false;
}
}
return true;
}
};
Y.CheckboxGroup = CheckboxGroup;