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| 1 <!-- |
| 2 @license |
| 3 Copyright (c) 2015 The Polymer Project Authors. All rights reserved. |
| 4 This code may only be used under the BSD style license found at http://polymer.g
ithub.io/LICENSE.txt |
| 5 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt |
| 6 The complete set of contributors may be found at http://polymer.github.io/CONTRI
BUTORS.txt |
| 7 Code distributed by Google as part of the polymer project is also |
| 8 subject to an additional IP rights grant found at http://polymer.github.io/PATEN
TS.txt |
| 9 --> |
| 10 |
| 11 <link rel="import" href="../polymer/polymer.html"> |
| 12 <link rel="import" href="../iron-icon/iron-icon.html"> |
| 13 <link rel="import" href="../iron-flex-layout/iron-flex-layout.html"> |
| 14 <link rel="import" href="../paper-styles/default-theme.html"> |
| 15 <link rel="import" href="../paper-behaviors/paper-button-behavior.html"> |
| 16 <link rel="import" href="../paper-behaviors/paper-inky-focus-behavior.html"> |
| 17 <link rel="import" href="../paper-ripple/paper-ripple.html"> |
| 18 |
| 19 <!-- |
| 20 Material design: [Icon toggles](https://www.google.com/design/spec/components/bu
ttons.html#buttons-toggle-buttons) |
| 21 |
| 22 `paper-icon-button` is a button with an image placed at the center. When the use
r touches |
| 23 the button, a ripple effect emanates from the center of the button. |
| 24 |
| 25 `paper-icon-button` includes a default icon set. Use `icon` to specify which ic
on |
| 26 from the icon set to use. |
| 27 |
| 28 <paper-icon-button icon="menu"></paper-icon-button> |
| 29 |
| 30 See [`iron-iconset`](#iron-iconset) for more information about |
| 31 how to use a custom icon set. |
| 32 |
| 33 Example: |
| 34 |
| 35 <link href="path/to/iron-icons/iron-icons.html" rel="import"> |
| 36 |
| 37 <paper-icon-button icon="favorite"></paper-icon-button> |
| 38 <paper-icon-button src="star.png"></paper-icon-button> |
| 39 |
| 40 ### Styling |
| 41 |
| 42 Style the button with CSS as you would a normal DOM element. If you are using th
e icons |
| 43 provided by `iron-icons`, they will inherit the foreground color of the button. |
| 44 |
| 45 /* make a red "favorite" button */ |
| 46 <paper-icon-button icon="favorite" style="color: red;"></paper-icon-button> |
| 47 |
| 48 By default, the ripple is the same color as the foreground at 25% opacity. You m
ay |
| 49 customize the color using the `--paper-icon-button-ink-color` custom property. |
| 50 |
| 51 The following custom properties and mixins are available for styling: |
| 52 |
| 53 Custom property | Description | Default |
| 54 ----------------|-------------|---------- |
| 55 `--paper-icon-button-disabled-text` | The color of the disabled button | `--disa
bled-text-color` |
| 56 `--paper-icon-button-ink-color` | Selected/focus ripple color | `--primary-text-
color` |
| 57 `--paper-icon-button` | Mixin for a button | `{}` |
| 58 `--paper-icon-button-disabled` | Mixin for a disabled button | `{}` |
| 59 `--paper-icon-button-hover` | Mixin for button on hover | `{}` |
| 60 |
| 61 @group Paper Elements |
| 62 @element paper-icon-button |
| 63 @demo demo/index.html |
| 64 --> |
| 65 |
| 66 <dom-module id="paper-icon-button"> |
| 67 <template strip-whitespace> |
| 68 <style> |
| 69 :host { |
| 70 display: inline-block; |
| 71 position: relative; |
| 72 padding: 8px; |
| 73 outline: none; |
| 74 -webkit-tap-highlight-color: rgba(0,0,0,0); |
| 75 -webkit-user-select: none; |
| 76 -moz-user-select: none; |
| 77 -ms-user-select: none; |
| 78 user-select: none; |
| 79 cursor: pointer; |
| 80 z-index: 0; |
| 81 line-height: 1; |
| 82 |
| 83 width: 40px; |
| 84 height: 40px; |
| 85 |
| 86 /* Because of polymer/2558, this style has lower specificity than * */ |
| 87 box-sizing: border-box !important; |
| 88 @apply(--paper-icon-button); |
| 89 } |
| 90 |
| 91 :host #ink { |
| 92 color: var(--paper-icon-button-ink-color, --primary-text-color); |
| 93 opacity: 0.6; |
| 94 } |
| 95 |
| 96 :host([disabled]) { |
| 97 color: var(--paper-icon-button-disabled-text, --disabled-text-color); |
| 98 pointer-events: none; |
| 99 cursor: auto; |
| 100 @apply(--paper-icon-button-disabled); |
| 101 } |
| 102 |
| 103 :host(:hover) { |
| 104 @apply(--paper-icon-button-hover); |
| 105 } |
| 106 |
| 107 iron-icon { |
| 108 --iron-icon-width: 100%; |
| 109 --iron-icon-height: 100%; |
| 110 } |
| 111 </style> |
| 112 <iron-icon id="icon" src="[[src]]" icon="[[icon]]" alt$="[[alt]]"></iron-ico
n> |
| 113 </template> |
| 114 |
| 115 <script> |
| 116 Polymer({ |
| 117 is: 'paper-icon-button', |
| 118 |
| 119 hostAttributes: { |
| 120 role: 'button', |
| 121 tabindex: '0' |
| 122 }, |
| 123 |
| 124 behaviors: [ |
| 125 Polymer.PaperInkyFocusBehavior |
| 126 ], |
| 127 |
| 128 properties: { |
| 129 /** |
| 130 * The URL of an image for the icon. If the src property is specified, |
| 131 * the icon property should not be. |
| 132 */ |
| 133 src: { |
| 134 type: String |
| 135 }, |
| 136 |
| 137 /** |
| 138 * Specifies the icon name or index in the set of icons available in |
| 139 * the icon's icon set. If the icon property is specified, |
| 140 * the src property should not be. |
| 141 */ |
| 142 icon: { |
| 143 type: String |
| 144 }, |
| 145 |
| 146 /** |
| 147 * Specifies the alternate text for the button, for accessibility. |
| 148 */ |
| 149 alt: { |
| 150 type: String, |
| 151 observer: "_altChanged" |
| 152 } |
| 153 }, |
| 154 |
| 155 _altChanged: function(newValue, oldValue) { |
| 156 var label = this.getAttribute('aria-label'); |
| 157 |
| 158 // Don't stomp over a user-set aria-label. |
| 159 if (!label || oldValue == label) { |
| 160 this.setAttribute('aria-label', newValue); |
| 161 } |
| 162 } |
| 163 }); |
| 164 </script> |
| 165 </dom-module> |
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