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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="../paper-styles/paper-styles.html"> |
| 13 <link rel="import" href="paper-input-addon-behavior.html"> |
| 14 |
| 15 <!-- |
| 16 `<paper-input-char-counter>` is a character counter for use with `<paper-input-c
ontainer>`. It |
| 17 shows the number of characters entered in the input and the max length if it is
specified. |
| 18 |
| 19 <paper-input-container> |
| 20 <input is="iron-input" maxlength="20"> |
| 21 <paper-input-char-counter></paper-input-char-counter> |
| 22 </paper-input-container> |
| 23 |
| 24 ### Styling |
| 25 |
| 26 The following mixin is available for styling: |
| 27 |
| 28 Custom property | Description | Default |
| 29 ----------------|-------------|---------- |
| 30 `--paper-input-char-counter` | Mixin applied to the element | `{}` |
| 31 --> |
| 32 <dom-module id="paper-input-char-counter"> |
| 33 |
| 34 <style> |
| 35 |
| 36 :host { |
| 37 display: inline-block; |
| 38 float: right; |
| 39 |
| 40 @apply(--paper-font-caption); |
| 41 @apply(--paper-input-char-counter); |
| 42 } |
| 43 |
| 44 </style> |
| 45 |
| 46 <template> |
| 47 |
| 48 <span>[[_charCounterStr]]</span> |
| 49 |
| 50 </template> |
| 51 |
| 52 </dom-module> |
| 53 |
| 54 <script> |
| 55 |
| 56 (function() { |
| 57 |
| 58 Polymer({ |
| 59 |
| 60 is: 'paper-input-char-counter', |
| 61 |
| 62 behaviors: [ |
| 63 Polymer.PaperInputAddonBehavior |
| 64 ], |
| 65 |
| 66 properties: { |
| 67 |
| 68 _charCounterStr: { |
| 69 type: String, |
| 70 value: '0' |
| 71 } |
| 72 |
| 73 }, |
| 74 |
| 75 update: function(state) { |
| 76 if (!state.inputElement) { |
| 77 return; |
| 78 } |
| 79 |
| 80 state.value = state.value || ''; |
| 81 |
| 82 // Account for the textarea's new lines. |
| 83 var str = state.value.replace(/(\r\n|\n|\r)/g, '--').length; |
| 84 |
| 85 if (state.inputElement.hasAttribute('maxlength')) { |
| 86 str += '/' + state.inputElement.getAttribute('maxlength'); |
| 87 } |
| 88 this._charCounterStr = str; |
| 89 } |
| 90 |
| 91 }); |
| 92 |
| 93 })(); |
| 94 |
| 95 </script> |
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