<!doctype html> <!-- @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 --> <html> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1, user-scalable=yes"> <title>iron-autogrow-textarea demo</title> <script src="../../webcomponentsjs/webcomponents-lite.js"></script> <link rel="import" href="../iron-autogrow-textarea.html"> <link rel="stylesheet" href="../../paper-styles/paper-styles.html"> <link rel="import" href="../../paper-styles/demo-pages.html"> </head> <style> iron-autogrow-textarea { width: 200px; } </style> <body> <div class="vertical-section-container centered"> <h4>Updating the value imperatively</h4> <template is="dom-bind"> <div class="vertical-section"> <iron-autogrow-textarea bind-value="{{bindValue}}" id="a1"></iron-autogrow-textarea> <br><br> <code>bind-value</code>: <span>[[bindValue]]</span> <p on-click="setValue"> set <code>bind-value</code> to: <br> <textarea></textarea> <button value="bindValue">set</button> <br><br> set <code>textarea.value</code> to: <br> <textarea></textarea> <button value="value">set</button> </p> </div> </template> <h4>Custom</h4> <div class="vertical-section"> <p>Scrolls after 4 rows:</p> <iron-autogrow-textarea max-rows="4"></iron-autogrow-textarea> <p>Initial height of 4 rows</p> <iron-autogrow-textarea rows="4"></iron-autogrow-textarea> </div> </div> <script> var scope = document.querySelector('template[is=dom-bind]'); scope.setValue = function(event) { if (!(event.target instanceof HTMLButtonElement)) { return; } var inputValue = event.target.previousElementSibling.value; if (event.target.value == "bindValue") { document.querySelector('iron-autogrow-textarea').bindValue = inputValue; } else { document.querySelector('iron-autogrow-textarea').textarea.value = inputValue; } } </script> </body> </html>