2015-06-26 20:27:38 -07:00
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<!doctype html>
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<!--
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@license
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Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
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This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
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The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
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The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
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Code distributed by Google as part of the polymer project is also
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subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
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-->
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<html>
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1, user-scalable=yes">
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<title>iron-autogrow-textarea demo</title>
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<script src="../../webcomponentsjs/webcomponents-lite.js"></script>
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2016-02-18 11:20:10 -07:00
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<link rel="import" href="../../iron-demo-helpers/demo-snippet.html">
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<link rel="import" href="../../iron-demo-helpers/demo-pages-shared-styles.html">
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2015-06-26 20:27:38 -07:00
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<link rel="import" href="../iron-autogrow-textarea.html">
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2016-02-18 11:20:10 -07:00
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<style is="custom-style" include="demo-pages-shared-styles">
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iron-autogrow-textarea {
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display: block;
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width: 200px;
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margin: 5px 0;
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}
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textarea {
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width: 200px;
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}
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.vertical-section {
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box-sizing: border-box;
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width: 400px;
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margin: 0;
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}
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</style>
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</head>
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<body unresolved>
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<div class="vertical-section-container centered">
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<h3>An iron-autogrow-textarea grows automatically as more text is entered</h3>
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<demo-snippet class="centered-demo">
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<template>
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<iron-autogrow-textarea></iron-autogrow-textarea>
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</template>
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</demo-snippet>
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<h3>The maximum height can be controlled either through the <i>max-rows</i>
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property, or through a fixed max height</h3>
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<demo-snippet class="centered-demo">
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<template>
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<iron-autogrow-textarea max-rows="4" placeholder="scrolls after 4 rows"></iron-autogrow-textarea>
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<iron-autogrow-textarea style="max-height: 50px;" placeholder="scrolls after 50px"></iron-autogrow-textarea>
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</template>
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</demo-snippet>
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<h3>The initial height can also be controlled using the <i>rows</i> property,
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or through a fixed height</h3>
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<demo-snippet class="centered-demo">
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<template>
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<iron-autogrow-textarea rows="4" placeholder="start with 4 rows"></iron-autogrow-textarea>
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<iron-autogrow-textarea style="height: 50px;"></iron-autogrow-textarea>
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</template>
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</demo-snippet>
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2016-02-18 11:20:10 -07:00
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<h3>Example of updating the value imperatively</h3>
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<!-- TODO: replace this with a demo-snippet when https://github.com/webcomponents/webcomponentsjs/issues/362
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is fixed -->
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<div class="example">
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<template is="dom-bind">
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<div class="vertical-section">
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<iron-autogrow-textarea bind-value="{{bindValue}}" id="a1"></iron-autogrow-textarea>
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<br>
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<code>bind-value</code>: <span>[[bindValue]]</span>
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<p on-click="setValue">
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Imperatively changing <code>bind-value</code> will also update
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<code>textarea.value</code>:<br>
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<textarea></textarea>
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<button value="bindValue">set</button>
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<br><br>
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Imperatively updating <code>textarea.value</code> will update
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the display, but not update <code>bind-value</code>:<br>
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<textarea></textarea>
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<button value="value">set</button>
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</p>
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</div>
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</template>
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</div>
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</div>
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<script>
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var scope = document.querySelector('template[is=dom-bind]');
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scope.setValue = function(event) {
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if (!(event.target instanceof HTMLButtonElement)) {
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return;
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}
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var inputValue = event.target.previousElementSibling.value;
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if (event.target.value == "bindValue") {
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document.querySelector('#a1').bindValue = inputValue;
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} else {
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document.querySelector('#a1').textarea.value = inputValue;
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}
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}
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</script>
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</body>
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</html>
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