third_party/polymer/v1_0/components-chromium/iron-autogrow-textarea/iron-autogrow-textarea.html

   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.github.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/CONTRIBUTORS.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/PATENTS.txt
   9 --><html><head><link rel="import" href="../polymer/polymer.html">
  10 <link rel="import" href="../iron-behaviors/iron-control-state.html">
  11 <link rel="import" href="../iron-flex-layout/classes/iron-flex-layout.html">
  12 <link rel="import" href="../iron-validatable-behavior/iron-validatable-behavior.html">
  13 <link rel="import" href="../iron-form-element-behavior/iron-form-element-behavior.html">
  14
  15 <!--
  16 `iron-autogrow-textarea` is an element containing a textarea that grows in height as more
  17 lines of input are entered. Unless an explicit height or the `maxRows` property is set, it will
  18 never scroll.
  19
  20 Example:
  21
  22     <iron-autogrow-textarea id="a1">
  23       <textarea id="t1"></textarea>
  24     </iron-autogrow-textarea>
  25
  26 Because the `textarea`'s `value` property is not observable, you should use
  27 this element's `bind-value` instead for imperative updates.
  28
  29 @group Iron Elements
  30 @hero hero.svg
  31 @demo demo/index.html
  32 -->
  33
  34 </head><body><dom-module id="iron-autogrow-textarea">
  35
  36   <style>
  37     :host {
  38       display: inline-block;
  39       position: relative;
  40       width: 400px;
  41       border: 1px solid;
  42       padding: 2px;
  43       -moz-appearance: textarea;
  44       -webkit-appearance: textarea;
  45     }
  46
  47     .mirror-text {
  48       visibility: hidden;
  49       word-wrap: break-word;
  50     }
  51
  52     textarea {
  53       position: relative;
  54       outline: none;
  55       border: none;
  56       resize: none;
  57       background: inherit;
  58       color: inherit;
  59       /* see comments in template */
  60       width: 100%;
  61       height: 100%;
  62       font-size: inherit;
  63       font-family: inherit;
  64     }
  65
  66     ::content textarea:invalid {
  67       box-shadow: none;
  68     }
  69
  70   </style>
  71   <template>
  72     <!-- the mirror sizes the input/textarea so it grows with typing -->
  73     <div id="mirror" class="mirror-text" aria-hidden="true">&nbsp;</div>
  74
  75     <!-- size the input/textarea with a div, because the textarea has intrinsic size in ff -->
  76     <div class="textarea-container fit">
  77       <textarea id="textarea" autocomplete$="[[autocomplete]]" autofocus$="[[autofocus]]" inputmode$="[[inputmode]]" placeholder$="[[placeholder]]" readonly$="[[readonly]]" required$="[[required]]" rows$="[[rows]]" maxlength$="[[maxlength]]"></textarea>
  78     </div>
  79   </template>
  80 </dom-module>
  81
  82 <script src="iron-autogrow-textarea-extracted.js"></script></body></html>