-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathReactDOMSelect.js
More file actions
176 lines (155 loc) · 5.08 KB
/
Copy pathReactDOMSelect.js
File metadata and controls
176 lines (155 loc) · 5.08 KB
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
/**
* Copyright 2013-2015, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule ReactDOMSelect
*/
'use strict';
var AutoFocusMixin = require("./AutoFocusMixin");
var LinkedValueUtils = require("./LinkedValueUtils");
var ReactBrowserComponentMixin = require("./ReactBrowserComponentMixin");
var ReactClass = require("./ReactClass");
var ReactElement = require("./ReactElement");
var ReactUpdates = require("./ReactUpdates");
var assign = require("./Object.assign");
var select = ReactElement.createFactory('select');
function updateOptionsIfPendingUpdateAndMounted() {
/*jshint validthis:true */
if (this._pendingUpdate) {
this._pendingUpdate = false;
var value = LinkedValueUtils.getValue(this);
if (value != null && this.isMounted()) {
updateOptions(this, value);
}
}
}
/**
* Validation function for `value` and `defaultValue`.
* @private
*/
function selectValueType(props, propName, componentName) {
if (props[propName] == null) {
return null;
}
if (props.multiple) {
if (!Array.isArray(props[propName])) {
return new Error(
("The `" + propName + "` prop supplied to <select> must be an array if ") +
("`multiple` is true.")
);
}
} else {
if (Array.isArray(props[propName])) {
return new Error(
("The `" + propName + "` prop supplied to <select> must be a scalar ") +
("value if `multiple` is false.")
);
}
}
}
/**
* @param {ReactComponent} component Instance of ReactDOMSelect
* @param {*} propValue A stringable (with `multiple`, a list of stringables).
* @private
*/
function updateOptions(component, propValue) {
var selectedValue, i, l;
var options = component.getDOMNode().options;
if (component.props.multiple) {
selectedValue = {};
for (i = 0, l = propValue.length; i < l; i++) {
selectedValue['' + propValue[i]] = true;
}
for (i = 0, l = options.length; i < l; i++) {
var selected = selectedValue.hasOwnProperty(options[i].value);
if (options[i].selected !== selected) {
options[i].selected = selected;
}
}
} else {
// Do not set `select.value` as exact behavior isn't consistent across all
// browsers for all cases.
selectedValue = '' + propValue;
for (i = 0, l = options.length; i < l; i++) {
if (options[i].value === selectedValue) {
options[i].selected = true;
return;
}
}
if (options.length) {
options[0].selected = true;
}
}
}
/**
* Implements a <select> native component that allows optionally setting the
* props `value` and `defaultValue`. If `multiple` is false, the prop must be a
* stringable. If `multiple` is true, the prop must be an array of stringables.
*
* If `value` is not supplied (or null/undefined), user actions that change the
* selected option will trigger updates to the rendered options.
*
* If it is supplied (and not null/undefined), the rendered options will not
* update in response to user actions. Instead, the `value` prop must change in
* order for the rendered options to update.
*
* If `defaultValue` is provided, any options with the supplied values will be
* selected.
*/
var ReactDOMSelect = ReactClass.createClass({
displayName: 'ReactDOMSelect',
tagName: 'SELECT',
mixins: [AutoFocusMixin, LinkedValueUtils.Mixin, ReactBrowserComponentMixin],
propTypes: {
defaultValue: selectValueType,
value: selectValueType
},
render: function() {
// Clone `this.props` so we don't mutate the input.
var props = assign({}, this.props);
props.onChange = this._handleChange;
props.value = null;
return select(props, this.props.children);
},
componentWillMount: function() {
this._pendingUpdate = false;
},
componentDidMount: function() {
var value = LinkedValueUtils.getValue(this);
if (value != null) {
updateOptions(this, value);
} else if (this.props.defaultValue != null) {
updateOptions(this, this.props.defaultValue);
}
},
componentDidUpdate: function(prevProps) {
var value = LinkedValueUtils.getValue(this);
if (value != null) {
this._pendingUpdate = false;
updateOptions(this, value);
} else if (!prevProps.multiple !== !this.props.multiple) {
// For simplicity, reapply `defaultValue` if `multiple` is toggled.
if (this.props.defaultValue != null) {
updateOptions(this, this.props.defaultValue);
} else {
// Revert the select back to its default unselected state.
updateOptions(this, this.props.multiple ? [] : '');
}
}
},
_handleChange: function(event) {
var returnValue;
var onChange = LinkedValueUtils.getOnChange(this);
if (onChange) {
returnValue = onChange.call(this, event);
}
this._pendingUpdate = true;
ReactUpdates.asap(updateOptionsIfPendingUpdateAndMounted, this);
return returnValue;
}
});
module.exports = ReactDOMSelect;