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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-meta/iron-meta.html"> | |
| 13 <link rel="import" href="../iron-flex-layout/iron-flex-layout.html"> | |
| 14 | |
| 15 <!-- | |
| 16 | |
| 17 The `iron-icon` element displays an icon. By default an icon renders as a 24px s
quare. | |
| 18 | |
| 19 Example using src: | |
| 20 | |
| 21 <iron-icon src="star.png"></iron-icon> | |
| 22 | |
| 23 Example setting size to 32px x 32px: | |
| 24 | |
| 25 <iron-icon class="big" src="big_star.png"></iron-icon> | |
| 26 | |
| 27 <style> | |
| 28 .big { | |
| 29 height: 32px; | |
| 30 width: 32px; | |
| 31 } | |
| 32 </style> | |
| 33 | |
| 34 The iron elements include several sets of icons. | |
| 35 To use the default set of icons, import `iron-icons.html` and use the `icon` at
tribute to specify an icon: | |
| 36 | |
| 37 <!-- import default iconset and iron-icon --> | |
| 38 <link rel="import" href="/components/iron-icons/iron-icons.html"> | |
| 39 | |
| 40 <iron-icon icon="menu"></iron-icon> | |
| 41 | |
| 42 To use a different built-in set of icons, import `iron-icons/<iconset>-icons.ht
ml`, and | |
| 43 specify the icon as `<iconset>:<icon>`. For example: | |
| 44 | |
| 45 <!-- import communication iconset and iron-icon --> | |
| 46 <link rel="import" href="/components/iron-icons/communication-icons.html"> | |
| 47 | |
| 48 <iron-icon icon="communication:email"></iron-icon> | |
| 49 | |
| 50 You can also create custom icon sets of bitmap or SVG icons. | |
| 51 | |
| 52 Example of using an icon named `cherry` from a custom iconset with the ID `fruit
`: | |
| 53 | |
| 54 <iron-icon icon="fruit:cherry"></iron-icon> | |
| 55 | |
| 56 See [iron-iconset](#iron-iconset) and [iron-iconset-svg](#iron-iconset-svg) for
more information about | |
| 57 how to create a custom iconset. | |
| 58 | |
| 59 See [iron-icons](http://www.polymer-project.org/components/iron-icons/demo.html)
for the default set of icons. | |
| 60 | |
| 61 | |
| 62 ### Styling | |
| 63 | |
| 64 The following custom properties are available for styling: | |
| 65 | |
| 66 Custom property | Description | Default | |
| 67 ----------------|-------------|---------- | |
| 68 `--iron-icon-width` | Width of the icon | `24px` | |
| 69 `--iron-icon-height` | Height of the icon | `24px` | |
| 70 | |
| 71 @group Iron Elements | |
| 72 @element iron-icon | |
| 73 @demo demo/index.html | |
| 74 @hero hero.svg | |
| 75 @homepage polymer.github.io | |
| 76 --> | |
| 77 | |
| 78 <style is="custom-style"> | |
| 79 :root { | |
| 80 --iron-icon-width: 24px; | |
| 81 --iron-icon-height: 24px; | |
| 82 } | |
| 83 </style> | |
| 84 | |
| 85 <dom-module id="iron-icon"> | |
| 86 | |
| 87 <style> | |
| 88 :host { | |
| 89 @apply(--layout-inline); | |
| 90 @apply(--layout-center-center); | |
| 91 position: relative; | |
| 92 | |
| 93 vertical-align: middle; | |
| 94 | |
| 95 fill: currentcolor; | |
| 96 | |
| 97 width: var(--iron-icon-width); | |
| 98 height: var(--iron-icon-height); | |
| 99 } | |
| 100 </style> | |
| 101 | |
| 102 <template> | |
| 103 <iron-meta id="meta" type="iconset"></iron-meta> | |
| 104 </template> | |
| 105 | |
| 106 <script> | |
| 107 | |
| 108 Polymer({ | |
| 109 | |
| 110 is: 'iron-icon', | |
| 111 | |
| 112 properties: { | |
| 113 | |
| 114 /** | |
| 115 * The name of the icon to use. The name should be of the form: | |
| 116 * `iconset_name:icon_name`. | |
| 117 */ | |
| 118 icon: { | |
| 119 type: String, | |
| 120 observer: '_iconChanged' | |
| 121 }, | |
| 122 | |
| 123 /** | |
| 124 * The name of the theme to used, if one is specified by the | |
| 125 * iconset. | |
| 126 */ | |
| 127 theme: { | |
| 128 type: String, | |
| 129 observer: '_updateIcon' | |
| 130 }, | |
| 131 | |
| 132 /** | |
| 133 * If using iron-icon without an iconset, you can set the src to be | |
| 134 * the URL of an individual icon image file. Note that this will take | |
| 135 * precedence over a given icon attribute. | |
| 136 */ | |
| 137 src: { | |
| 138 type: String, | |
| 139 observer: '_srcChanged' | |
| 140 } | |
| 141 }, | |
| 142 | |
| 143 _DEFAULT_ICONSET: 'icons', | |
| 144 | |
| 145 _iconChanged: function(icon) { | |
| 146 var parts = (icon || '').split(':'); | |
| 147 this._iconName = parts.pop(); | |
| 148 this._iconsetName = parts.pop() || this._DEFAULT_ICONSET; | |
| 149 this._updateIcon(); | |
| 150 }, | |
| 151 | |
| 152 _srcChanged: function(src) { | |
| 153 this._updateIcon(); | |
| 154 }, | |
| 155 | |
| 156 _usesIconset: function() { | |
| 157 return this.icon || !this.src; | |
| 158 }, | |
| 159 | |
| 160 _updateIcon: function() { | |
| 161 if (this._usesIconset()) { | |
| 162 if (this._iconsetName) { | |
| 163 this._iconset = this.$.meta.byKey(this._iconsetName); | |
| 164 if (this._iconset) { | |
| 165 this._iconset.applyIcon(this, this._iconName, this.theme); | |
| 166 } else { | |
| 167 this._warn(this._logf('_updateIcon', 'could not find iconset `' | |
| 168 + this._iconsetName + '`, did you import the iconset?')); | |
| 169 } | |
| 170 } | |
| 171 } else { | |
| 172 if (!this._img) { | |
| 173 this._img = document.createElement('img'); | |
| 174 this._img.style.width = '100%'; | |
| 175 this._img.style.height = '100%'; | |
| 176 } | |
| 177 this._img.src = this.src; | |
| 178 Polymer.dom(this.root).appendChild(this._img); | |
| 179 } | |
| 180 } | |
| 181 | |
| 182 }); | |
| 183 | |
| 184 </script> | |
| 185 | |
| 186 </dom-module> | |
| 187 | |
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