<head>
    <meta charset="utf-8">
    <title>360&deg; Image Gallery</title>
    <meta name="description" content="360&deg; Image Gallery - A-Frame">
    <script src="https://rawgit.com/aframevr/aframe/917c06889ee1f3f79b7b1bbd9eab9815f9512503/dist/aframe.min.js"></script>
    <script src="https://npmcdn.com/aframe-animation-component@3.0.1"></script>
    <script src="https://npmcdn.com/aframe-event-set-component@3.0.1"></script>
    <script src="https://npmcdn.com/aframe-layout-component@3.0.1"></script>
    <script src="https://npmcdn.com/aframe-template-component@3.0.1"></script>
    <script src="components/set-image.js"></script>
    <script src="components/update-raycaster.js"></script>
  </head>
  <body>
    <a-scene>
      <a-assets>
        <img id="city" crossorigin="anonymous" src="https://cdn.aframe.io/360-image-gallery-boilerplate/img/city.jpg">
        <img id="city-thumb" crossorigin="anonymous" src="https://cdn.aframe.io/360-image-gallery-boilerplate/img/thumb-city.jpg">
        <img id="cubes-thumb" crossorigin="anonymous" src="https://cdn.aframe.io/360-image-gallery-boilerplate/img/thumb-cubes.jpg">
        <img id="sechelt-thumb" crossorigin="anonymous" src="https://cdn.aframe.io/360-image-gallery-boilerplate/img/thumb-sechelt.jpg">
        <audio id="click-sound" crossorigin="anonymous" src="https://cdn.aframe.io/360-image-gallery-boilerplate/audio/click.ogg"></audio>
        <img id="cubes" crossorigin="anonymous" src="https://cdn.aframe.io/360-image-gallery-boilerplate/img/cubes.jpg">
        <img id="sechelt" crossorigin="anonymous" src="https://cdn.aframe.io/360-image-gallery-boilerplate/img/sechelt.jpg">

        <!-- Image link template to be reused. -->
        <script id="link" type="text/nunjucks">
          <a-plane class="link" height="1" width="1"
            material="shader: flat; src: {{ thumb }}"
            event-set__1="_event: mousedown; scale: 1 1 1"
            event-set__2="_event: mouseup; scale: 1.2 1.2 1"
            event-set__3="_event: mouseenter; scale: 1.2 1.2 1"
            event-set__4="_event: mouseleave; scale: 1 1 1"
            set-image="on: click; target: #image-360; src: {{ src }}"
            sound="on: click; src: #click-sound"
            update-raycaster="#cursor"></a-plane>
        </script>
      </a-assets>

      <!-- 360-degree image. -->
      <a-sky id="image-360" radius="10" src="#city"></a-sky>

      <!-- Image links. -->
      <a-entity id="links" layout="type: line; margin: 1.5" position="0 -1 -4">
        <a-entity template="src: #link" data-src="#cubes" data-thumb="#cubes-thumb"></a-entity>
        <a-entity template="src: #link" data-src="#city" data-thumb="#city-thumb"></a-entity>
        <a-entity template="src: #link" data-src="#sechelt" data-thumb="#sechelt-thumb"></a-entity>
      </a-entity>

      <!-- Camera + cursor. -->
      <a-entity camera look-controls>
        <a-cursor id="cursor"
          animation__click="property: scale; startEvents: click; from: 0.1 0.1 0.1; to: 1 1 1; dur: 150"
          animation__fusing="property: fusing; startEvents: fusing; from: 1 1 1; to: 0.1 0.1 0.1; dur: 1500"
          event-set__1="_event: mouseenter; color: springgreen"
          event-set__2="_event: mouseleave; color: black"
          raycaster="objects: .link"></a-cursor>
      </a-entity>
    </a-scene>
  </body>
</html>
/* global AFRAME */

/**
 * Component that listens to an event, fades out an entity, swaps the texture, and fades it
 * back in.
 */
AFRAME.registerComponent('set-image', {
  schema: {
    on: {type: 'string'},
    target: {type: 'selector'},
    src: {type: 'string'},
    dur: {type: 'number', default: 300}
  },

  init: function () {
    var data = this.data;
    var el = this.el;

    this.setupFadeAnimation();

    el.addEventListener(data.on, function () {
      // Fade out image.
      data.target.emit('set-image-fade');
      // Wait for fade to complete.
      setTimeout(function () {
        // Set image.
        data.target.setAttribute('material', 'src', data.src);
      }, data.dur);
    });
  },

  /**
   * Setup fade-in + fade-out.
   */
  setupFadeAnimation: function () {
    var data = this.data;
    var targetEl = this.data.target;

    // Only set up once.
    if (targetEl.dataset.setImageFadeSetup) { return; }
    targetEl.dataset.setImageFadeSetup = true;

    // Create animation.
    targetEl.setAttribute('animation__fade', {
      property: 'material.color',
      startEvents: 'set-image-fade',
      dir: 'alternate',
      dur: data.dur,
      from: '#FFF',
      to: '#000'
    });
  }
});

External CSS

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External JavaScript

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