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
|
<!--
@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="../iron-flex-layout/iron-flex-layout.html">
<link rel="import" href="../paper-behaviors/paper-button-behavior.html">
<link rel="import" href="../paper-material/paper-material-shared-styles.html">
<!--
Material design: [Buttons](https://www.google.com/design/spec/components/buttons.html)
`paper-button` is a button. When the user touches the button, a ripple effect emanates
from the point of contact. It may be flat or raised. A raised button is styled with a
shadow.
Example:
<paper-button>Flat button</paper-button>
<paper-button raised>Raised button</paper-button>
<paper-button noink>No ripple effect</paper-button>
<paper-button toggles>Toggle-able button</paper-button>
A button that has `toggles` true will remain `active` after being clicked (and
will have an `active` attribute set). For more information, see the `Polymer.IronButtonState`
behavior.
You may use custom DOM in the button body to create a variety of buttons. For example, to
create a button with an icon and some text:
<paper-button>
<iron-icon icon="favorite"></iron-icon>
custom button content
</paper-button>
To use `paper-button` as a link, wrap it in an anchor tag. Since `paper-button` will already
receive focus, you may want to prevent the anchor tag from receiving focus as well by setting
its tabindex to -1.
<a href="https://www.polymer-project.org/" tabindex="-1">
<paper-button raised>Polymer Project</paper-button>
</a>
### Styling
Style the button with CSS as you would a normal DOM element.
paper-button.fancy {
background: green;
color: yellow;
}
paper-button.fancy:hover {
background: lime;
}
paper-button[disabled],
paper-button[toggles][active] {
background: red;
}
By default, the ripple is the same color as the foreground at 25% opacity. You may
customize the color using the `--paper-button-ink-color` custom property.
The following custom properties and mixins are also available for styling:
Custom property | Description | Default
----------------|-------------|----------
`--paper-button-ink-color` | Background color of the ripple | `Based on the button's color`
`--paper-button` | Mixin applied to the button | `{}`
`--paper-button-disabled` | Mixin applied to the disabled button. Note that you can also use the `paper-button[disabled]` selector | `{}`
`--paper-button-flat-keyboard-focus` | Mixin applied to a flat button after it's been focused using the keyboard | `{}`
`--paper-button-raised-keyboard-focus` | Mixin applied to a raised button after it's been focused using the keyboard | `{}`
@demo demo/index.html
-->
<dom-module id="paper-button">
<template strip-whitespace>
<style include="paper-material-shared-styles">
:host {
@apply(--layout-inline);
@apply(--layout-center-center);
position: relative;
box-sizing: border-box;
min-width: 5.14em;
margin: 0 0.29em;
background: transparent;
-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
-webkit-tap-highlight-color: transparent;
font: inherit;
text-transform: uppercase;
outline-width: 0;
border-radius: 3px;
-moz-user-select: none;
-ms-user-select: none;
-webkit-user-select: none;
user-select: none;
cursor: pointer;
z-index: 0;
padding: 0.7em 0.57em;
@apply(--paper-font-common-base);
@apply(--paper-button);
}
:host([hidden]) {
display: none !important;
}
:host([raised].keyboard-focus) {
font-weight: bold;
@apply(--paper-button-raised-keyboard-focus);
}
:host(:not([raised]).keyboard-focus) {
font-weight: bold;
@apply(--paper-button-flat-keyboard-focus);
}
:host([disabled]) {
background: #eaeaea;
color: #a8a8a8;
cursor: auto;
pointer-events: none;
@apply(--paper-button-disabled);
}
:host([animated]) {
@apply(--shadow-transition);
}
paper-ripple {
color: var(--paper-button-ink-color);
}
</style>
<content></content>
</template>
</dom-module>
<script>
Polymer({
is: 'paper-button',
behaviors: [
Polymer.PaperButtonBehavior
],
properties: {
/**
* If true, the button should be styled with a shadow.
*/
raised: {
type: Boolean,
reflectToAttribute: true,
value: false,
observer: '_calculateElevation'
}
},
_calculateElevation: function() {
if (!this.raised) {
this._setElevation(0);
} else {
Polymer.PaperButtonBehaviorImpl._calculateElevation.apply(this);
}
}
/**
Fired when the animation finishes.
This is useful if you want to wait until
the ripple animation finishes to perform some action.
@event transitionend
Event param: {{node: Object}} detail Contains the animated node.
*/
});
</script>
|
