paper-checkbox.html
7.87 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
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
<!--
@license
Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
Code distributed by Google as part of the polymer project is also
subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
-->
<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../paper-ripple/paper-ripple.html">
<link rel="import" href="../paper-styles/default-theme.html">
<link rel="import" href="../paper-styles/color.html">
<link rel="import" href="../paper-behaviors/paper-checked-element-behavior.html">
<!--
Material design: [Checkbox](https://www.google.com/design/spec/components/selection-controls.html#selection-controls-checkbox)
`paper-checkbox` is a button that can be either checked or unchecked. User
can tap the checkbox to check or uncheck it. Usually you use checkboxes
to allow user to select multiple options from a set. If you have a single
ON/OFF option, avoid using a single checkbox and use `paper-toggle-button`
instead.
Example:
<paper-checkbox>label</paper-checkbox>
<paper-checkbox checked> label</paper-checkbox>
### Styling
The following custom properties and mixins are available for styling:
Custom property | Description | Default
----------------|-------------|----------
`--paper-checkbox-unchecked-background-color` | Checkbox background color when the input is not checked | `transparent`
`--paper-checkbox-unchecked-color` | Checkbox border color when the input is not checked | `--primary-text-color`
`--paper-checkbox-unchecked-ink-color` | Selected/focus ripple color when the input is not checked | `--primary-text-color`
`--paper-checkbox-checked-color` | Checkbox color when the input is checked | `--default-primary-color`
`--paper-checkbox-checked-ink-color` | Selected/focus ripple color when the input is checked | `--default-primary-color`
`--paper-checkbox-checkmark-color` | Checkmark color | `white`
`--paper-checkbox-label-color` | Label color | `--primary-text-color`
`--paper-checkbox-label-spacing` | Spacing between the label and the checkbox | `8px`
`--paper-checkbox-error-color` | Checkbox color when invalid | `--google-red-500`
@demo demo/index.html
-->
<dom-module id="paper-checkbox">
<template strip-whitespace>
<style>
:host {
display: inline-block;
white-space: nowrap;
}
:host(:focus) {
outline: none;
}
.hidden {
display: none;
}
#checkboxContainer {
display: inline-block;
position: relative;
width: 18px;
height: 18px;
cursor: pointer;
-webkit-transform: translateZ(0);
transform: translateZ(0);
vertical-align: middle;
background-color: var(--paper-checkbox-unchecked-background-color, transparent);
}
#ink {
position: absolute;
top: -15px;
left: -15px;
width: 48px;
height: 48px;
color: var(--paper-checkbox-unchecked-ink-color, --primary-text-color);
opacity: 0.6;
pointer-events: none;
}
:host-context([dir="rtl"]) #ink {
right: -15px;
left: auto;
}
#ink[checked] {
color: var(--paper-checkbox-checked-ink-color, --default-primary-color);
}
#checkbox {
position: relative;
box-sizing: border-box;
height: 100%;
border: solid 2px;
border-color: var(--paper-checkbox-unchecked-color, --primary-text-color);
border-radius: 2px;
pointer-events: none;
-webkit-transition: background-color 140ms, border-color 140ms;
transition: background-color 140ms, border-color 140ms;
}
/* checkbox checked animations */
#checkbox.checked #checkmark {
-webkit-animation: checkmark-expand 140ms ease-out forwards;
animation: checkmark-expand 140ms ease-out forwards;
}
@-webkit-keyframes checkmark-expand {
0% {
top: 9px;
left: 6px;
width: 0px;
height: 0px;
}
100% {
top: -1px;
left: 4px;
width: 5px;
height: 10px;
}
}
@keyframes checkmark-expand {
0% {
top: 9px;
left: 6px;
width: 0px;
height: 0px;
}
100% {
top: -1px;
left: 4px;
width: 5px;
height: 10px;
}
}
#checkbox.checked {
background-color: var(--paper-checkbox-checked-color, --default-primary-color);
border-color: var(--paper-checkbox-checked-color, --default-primary-color);
}
#checkmark {
-webkit-transform: rotate(45deg);
transform: rotate(45deg);
position: absolute;
top: -1px;
left: 4px;
width: 5px;
height: 10px;
border-style: solid;
border-top: none;
border-left: none;
border-right-width: 2px;
border-bottom-width: 2px;
border-color: var(--paper-checkbox-checkmark-color, white);
}
/* label */
#checkboxLabel {
position: relative;
display: inline-block;
vertical-align: middle;
padding-left: var(--paper-checkbox-label-spacing, 8px);
white-space: normal;
pointer-events: none;
color: var(--paper-checkbox-label-color, --primary-text-color);
}
:host-context([dir="rtl"]) #checkboxLabel {
padding-right: var(--paper-checkbox-label-spacing, 8px);
padding-left: 0;
}
#checkboxLabel[hidden] {
display: none;
}
/* disabled state */
:host([disabled]) {
pointer-events: none;
}
:host([disabled]) #checkbox {
opacity: 0.5;
border-color: var(--paper-checkbox-unchecked-color, --primary-text-color);
}
:host([disabled][checked]) #checkbox {
background-color: var(--paper-checkbox-unchecked-color, --primary-text-color);
opacity: 0.5;
}
:host([disabled]) #checkboxLabel {
opacity: 0.65;
}
/* invalid state */
#checkbox.invalid:not(.checked) {
border-color: var(--paper-checkbox-error-color, --google-red-500);
}
</style>
<div id="checkboxContainer">
<div id="checkbox" class$="[[_computeCheckboxClass(checked, invalid)]]">
<div id="checkmark" class$="[[_computeCheckmarkClass(checked)]]"></div>
</div>
</div>
<div id="checkboxLabel"><content></content></div>
</template>
<script>
Polymer({
is: 'paper-checkbox',
behaviors: [
Polymer.PaperCheckedElementBehavior
],
hostAttributes: {
role: 'checkbox',
'aria-checked': false,
tabindex: 0
},
properties: {
/**
* Fired when the checked state changes due to user interaction.
*
* @event change
*/
/**
* Fired when the checked state changes.
*
* @event iron-change
*/
ariaActiveAttribute: {
type: String,
value: 'aria-checked'
}
},
_computeCheckboxClass: function(checked, invalid) {
var className = '';
if (checked) {
className += 'checked ';
}
if (invalid) {
className += 'invalid';
}
return className;
},
_computeCheckmarkClass: function(checked) {
return checked ? '' : 'hidden';
},
// create ripple inside the checkboxContainer
_createRipple: function() {
this._rippleContainer = this.$.checkboxContainer;
return Polymer.PaperInkyFocusBehaviorImpl._createRipple.call(this);
}
});
</script>
</dom-module>