dat.gui/elements/controller-number/controller-number.html

<link rel="import" href="../../../polymer/polymer.html">
<link rel="import" href="../controller-base/controller-base.html">

<script src="controller-number.js"></script>

<polymer-element 
    name="controller-number" 
    attributes="min max value step" 
    extends="controller-base"
    >

<template>

<link rel="stylesheet" href="controller-number.css">

<div id="container" class="transition slider-{{ slider }}" horizontal layout center>

    <div id="track-container"
         on-down="{{ down }}"
         on-up="{{ up }}"
         on-trackx="{{ trackx }}"
         on-tracky="{{ tracky }}"
         on-trackstart="{{ trackstart }}"
         horizontal layout center
         hidden?="{{ !slider }}"
         flex>

        <div id="track">

            <div id="fill"></div>
            <div id="knob"></div>

        </div>

    </div>

    <input type="text" 
           value="{{ truncate( value ) }}"
           on-click="{{ click }}"
           on-keydown="{{ keydown }}"
           on-blur="{{ blur }}"
           id="input">

    </template>

</div>

</polymer-element>