-
Notifications
You must be signed in to change notification settings - Fork 0
/
plastik-horizontal-multiselect.html
executable file
·219 lines (194 loc) · 8.87 KB
/
plastik-horizontal-multiselect.html
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
<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../core-selector/core-selector.html">
<!--
plastik-horizontal-multiselect is a horizontal, multi-selectable listbox with support for reset items.
##### Example
<plastik-horizontal-multiselect>
<core-item reset>Any</core-item>
<core-item value="0">Free</core-item>
<core-item value="1-100">$1 - $100</core-item>
<core-item value="101-500">$101 - $500</core-item>
<core-item value="501+">$501+</core-item>
</plastik-horizontal-multiselect>
@element plastik-horizontal-multiselect
@blurb Horizontal, multi-selectable listbox with support for reset items.
@status alpha
@homepage https://github.com/vsimonian/plastik-horizontal-multiselect
-->
<polymer-element name="plastik-horizontal-multiselect" attributes="single selected valueattr required" extends="core-selector">
<template>
<link rel="stylesheet" href="plastik-horizontal-multiselect.css">
<shadow></shadow>
</template>
<script>
Polymer('plastik-horizontal-multiselect', {
/**
* Gets or sets the array of currently selected values. If `single` is true, gets or sets
* a single value instead of an array.
*
* @attribute selected
* @type Object
* @default null
*/
selected: { value: null, reflect: true },
/**
* Gets or sets the name of the attribute to use when referencing an item's value.
*
* @attribute valueattr
* @type String
* @default 'value'
*/
valueattr: 'value',
/**
* If true, at least one item must be selected at all times.
*
* @attribute required
* @type bool
* @default false
*/
required: false,
/**
* If true, only a single item can be selected at a time.
*
* @attribute single
* @type bool
* @default false
*/
single: false,
ready: function (event, detail, sender) {
this.multi = !this.single;
this.cleanSelectedVariable();
if ((this.selected === undefined || this.selected === null || (this.selected.length && this.selected.length == 0)) && !this.single && this.getResetItemIndexOrValue() != -1)
this.selectedChanged();
this.super();
},
/**
* Deselects all items.
*
* @method clearSelection
* @param {Array} exclusions (optional) A list of values of items to exclude from deselection.
*/
clearSelection: function (exclusions) {
var excludes = [];
if (Array.isArray(exclusions)) {
for (var i = 0; i < exclusions.length; i++) {
if (this.valueToItem(exclusions[i])) {
excludes.push(exclusions[i]);
}
}
}
this.$.selection.selection.slice().forEach(function (item) {
var v = this.valueForNode(item) || this.items.indexOf(item);
if (excludes.length < 1 || excludes.indexOf(v) < 0) {
this.$.selection.setItemSelected(item, !this.single && item.hasAttribute('reset') && excludes.length < 1);
}
}, this);
if (excludes.length < 1 && !this.single)
{
var resetIdxOrValue = this.getResetItemIndexOrValue();
if (resetIdxOrValue > -1) { this.valueToSelection(resetIdxOrValue); }
else if (this.required) { this.valueToSelection(this.valueForNode(this.items[0])); }
}
},
selectionSelect: function (e, detail) {
this.updateSelectedItem();
if (!this.single && this.required && detail.item && !detail.isSelected && this.selected.length < 1) {
this.selected = [this.valueForNode(detail.item)];
} else if (detail.item) {
if (!this.single && detail.item.hasAttribute('reset') && detail.isSelected) {
this.selection = [this.valueForNode(detail.item)];
for (var i = 0; i < this.items.length; i++) {
this.applySelection(this.items[i], this.items[i].hasAttribute('reset'));
}
}
else
this.applySelection(detail.item, detail.isSelected);
}
},
getResetItem: function () {
var resetItem = null;
for (var i = 0; i < this.items.length; i++) {
if (this.items[i].hasAttribute('reset')) {
resetItem = this.items[i] || i;
break;
}
}
return resetItem;
},
getResetItemIndexOrValue: function () {
var resetIdxOrValue = -1;
for (var i = 0; i < this.items.length; i++) {
if (this.items[i].hasAttribute('reset')) {
resetIdxOrValue = this.valueForNode(this.items[i]) || i;
break;
}
}
return resetIdxOrValue;
},
updateSelected: function () {
this.validateSelected();
if (!this.single) {
this.clearSelection(this.selected);
this.selected && this.selected.forEach(function (s) {
this.setValueSelected(s, true);
}, this);
} else {
this.valueToSelection(this.selected);
}
},
cleanSelectedVariable: function () {
if (!this.single && !Array.isArray(this.selected) && this.selected !== null && this.selected !== undefined) {
this.selected = [this.selected];
return true;
} else if (this.single && Array.isArray(this.selected) && this.selected.length > 0) {
this.selected = this.selected[0];
return true;
} else if (!this.single && this.selected === undefined || this.selected == null) {
this.selected = [];
return true;
} else if (this.single && Array.isArray(this.selected) && this.selected.length < 1) {
this.selected = null;
return true;
}
return false;
},
selectedChanged: function () {
if (this.cleanSelectedVariable())
return;
var resetIdxOrValue = this.getResetItemIndexOrValue();
if (!this.single && Array.isArray(this.selected)) {
for (var i = 0; i < this.selected.length; i++) {
var item = this.valueToItem(this.selected[i]);
if (item === null || item === undefined) {
this.selected.splice(i, 1);
i--;
continue;
}
if (resetIdxOrValue != -1 && this.selected[i] == resetIdxOrValue) {
this.selected.length = 0;
this.valueToSelection(resetIdxOrValue);
this.updateSelectedItem();
break;
} else if (resetIdxOrValue != -1 && i == this.selected.length - 1) {
this.$.selection.setItemSelected(this.valueToItem(resetIdxOrValue), false);
}
}
}
this.clearSelection();
if (!this.single && resetIdxOrValue != -1 && (this.selected === null || this.selected === undefined || !this.selected.length)) {
this.valueToSelection(resetIdxOrValue);
} else if (!this.single) {
this.selected && this.selected.forEach(function (s) {
this.valueToSelection(s);
}, this);
} else {
if (this.selected) { this.valueToSelection(this.selected); }
}
this.super();
},
singleChanged: function () {
this.multi = !this.single;
}
});
</script>
</polymer-element>