presentations/TPAC2012/index_test.htmlbk

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  <title>TPAC 2012 - Responsive Images</title>
  <meta name="description" content="Presentation for TPAC 2012">
  <meta name="author" content="Marcos Cáceres">
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<body>
  <div class="reveal">
    <!-- Any section element inside of this container is displayed as a slide -->

    <article class="slides">
      <section>
        <h1><img style="background-color: #aaa" src=
        "images/RICG_Logo_Red.png" alt=
        "Responsive Images Community Group"></h1>
        
        <h2>Marcos Caceres & Yoav Weiss</h2>
        <h3> <a href="https://twitter.com/marcosc">@marcosc</a> | <a href="https://twitter.com/yoavweiss">@yoavweiss</a> | <a href="www.w3.org/community/respimg/">@respimg</a></h3> 
      </section>

      <section>
		<section>        
        	<h1>Rocky start</h1>
        	<p><img src="images/community-group.jpg" alt=
        	"They told us to make CG group!"></p>
        </section>
        <section>
         	<h2>Perseverance</h2>
            <ol>
                 <li class="fragment">Working through WHATWG feedback</li>
                 <li class="fragment">Explored alternatives</li>
                 <li class="fragment">Defined use cases</li> 
            </ol>            
        </section>
      </section>

<section>
	<h1>So we did...</h1>
    <section><p><a href="http://responsiveimages.org"><img src="images/site_v3.png" alt="The RICG website"></a></p>
    </section>
    <section>
    <ol>
    	 <li class="fragment">~170 participants and growing</li>
    	 <li class="fragment">Second largest CG at W3C</li>
         <li class="fragment">Open source community</li>
    </ol>
    </section>
</section>


      <section>
        <h1>Use cases</h1>
        <p><img src="images/standards_process.jpg" alt=""></p>
      </section>

      <section>
        <h2>Art Direction</h2>

        <p><img src="images/art_direction.png"></p>
      </section>

      <section>
        <h2>Design breakpoints</h2>
        <pre>
<code contenteditable="">
@media all and (max-width: 16em) { … }
@media all and (max-width: 32em) { … }
@media all and (max-width: 41em) { … }
        </code>
</pre>
      </section>

      <section>
          <h2>Media types and features</h2>
        <section>
          <h3>Print</h3>

          <p><img src="images/printed_image.jpg"></p>
        </section>

        <section>
          <h3>Monochrome</h3>

          <p><img src="images/color_and_bw_graph.png"></p>
        </section>

        <section>
          <h3>Orientation</h3><video controls poster=
          "videos/screenrmx1.jpg" width="652" height="389" onclick=
          "if(/Android/.test(navigator.userAgent))this.play();">
          <source src="videos/screenrmx1.m4v" type="video/mp4">
          <source src="videos/screenrmx1.webm" type="video/webm">
          <source src="videos/screenrmx1.ogv" type="video/ogg">
          <source src="videos/screenrmx1.mp4"><object type=
          "application/x-shockwave-flash" data=
          "videos/flashfox.swf" width="652" height="389" style=
          "position:relative;">
            <param name="movie" value="videos/flashfox.swf">
            <param name="allowFullScreen" value="true">
            <param name="flashVars" value=
            "autoplay=false&amp;controls=true&amp;fullScreenEnabled=true&amp;loop=false&amp;poster=videos/screenrmx1.jpg&amp;src=screenrmx1.m4v">
            <embed src="videos/flashfox.swf" width="652" height=
            "389" style="position:relative;" flashvars=
            "autoplay=false&amp;controls=true&amp;fullScreenEnabled=true&amp;loop=false&amp;poster=videos/screenrmx1.jpg&amp;src=screenrmx1.m4v"
            allowfullscreen="true" wmode="transparent" type=
            "application/x-shockwave-flash" pluginspage=
            "http://www.adobe.com/go/getflashplayer_en"> <img alt=
            "Responsive images on Meego website" src=
            "videos/screenrmx1.jpg" style=
            "position:absolute;left:0;" width="652" height="389"
            title=
            "Video playback is not supported by your browser"></embed>
          </object></video>
        </section>
        
      </section>

      <section>
        <h2>Relative units</h2>

        <p><img src="images/em_mq_labelled.png"></p>
      </section>

      <section>
        <h2>API to manipulate sources</h2>

        <ol>
          <li class="fragment">Canvas</li>

          <li class="fragment"><code>getUserMedia()</code></li>

          <li class="fragment">Media Capture</li>
        </ol>
      </section>

      <section>
        <h2>Image formats</h2>

        <ol>
          <li class="fragment">WebP</li>

          <li class="fragment">JPEG-XR</li>

          <li class="fragment">Future Format</li>
        </ol>
      </section>

      <section>
        <section>
        <h1>9 Requirements</h1>
		</section>
        <section>
        <h2>1</h2> 
          <blockquote>
            Match image sources with media queries - update the
            source of an image dynamically.
          </blockquote>
        </section>

        <section>
        <h2>2</h2>
          <blockquote>
            Degrade gracefully.
          </blockquote>
        </section>

        <section>
        <h2>3</h2>
          <blockquote>
            Be accessible <br> (text fallback, ARIA-compatible).
          </blockquote>
        </section>

        <section>
        <h2>4</h2>
          <blockquote>
            No server-side processing. But can still work with
            content negotiation.
          </blockquote>
        </section>

        <section>
        <h2>5</h2>
          <blockquote>
            Simple API.
          </blockquote>

          <ul>
            <li class="fragment">What's the current source?</li>

            <li class="fragment">What media matched?</li>

            <li class="fragment">Add, remove, and update image
            sources.</li>

            <li class="fragment">Events.</li>
          </ul>
        </section>

        <section>
        <h2>6</h2>
          <blockquote>
            Support art direction<br> (not just resolution switching).
          </blockquote>
        </section>

        <section>
        <h2>7</h2>
          <blockquote>
            Breakpoint friendly.
          </blockquote>
        </section>

        <section>
        <h2>8</h2>
          <blockquote>
            Support emerging formats.
          </blockquote>
        </section>

        <section>
        <h2>9</h2>
          <blockquote>
            Poly-fill-able.
          </blockquote>
        </section>
    
	  </section>
      <section>
        <h2>The &lt;picture&gt; Element</h2>
        <pre>
<code contenteditable="" class=
"xml">&lt;picture width="500" height="500"&gt;
     &lt;source media="(min-width: 45em)" 
                src="large.jpg"&gt;
   
     &lt;source media="(min-width: 18em)" 
                src="med.jpg"&gt;
   
     &lt;source src="small.jpg"&gt;
   
     &lt;img src="small.jpg" alt=""&gt;
   
     &lt;p&gt;Accessible text&lt;/p&gt; 
&lt;/picture&gt;  
     </code>
</pre>
      </section>

      <section>
        <h1>Live Demo</h1>
        <p><a href="https://github.com/yoavweiss/RespImg-WebCore/downloads"><img src="images/ricg_chromium.png" alt="Chromium build"></a>
        <p><a href="https://github.com/yoavweiss/RespImg-WebCore/downloads">Grab our Chromium build!</a></p>
      </section>
	
      <section>
      <h2>What about the <code>srcset</code> attribute?</h2>
      <img src="images/dr_strangepicture.png">
	  </section>
      <section>
        <table>
        <caption>
          <tr>
            <th>Requirement</th>

            <th><code>&lt;picture&gt;</code></th>

            <th><code>srcset</code></th>
          </tr>

          <tr>
            <td>Match MQ &amp; Update dynamically</td>

            <td class="yes">✓</td>

            <td class="no">✗</td>
          </tr>

          <tr>
     

            <td>Degrade gracefully</td>

            <td class="yes">✓</td>

            <td class="yes">✓</td>
          </tr>

          <tr>
            <td>Accessible</td>

            <td class="yes">✓</td>

            <td class="yes">✓</td>
          </tr>

          <tr>
      

            <td>No server-side processing</td>

            <td class="yes">✓</td>

            <td class="no">✗</td>
          </tr>

          <tr>
  

            <td>Simple API</td>

            <td class="yes">✓</td>

            <td class="no">✗</td>
          </tr>

          <tr>
            <td>Support art direction</td>

            <td class="yes">✓</td>

            <td class="yes">✓</td>
          </tr>

          <tr>
            <td>Breakpoint friendly</td>

            <td class="yes">✓</td>

            <td class="no">✗</td>
          </tr>

          <tr>
            <td>Support different formats</td>

            <td class="yes">✓</td>

            <td class="no">✗</td>
          </tr>

          <tr>
            <td>Polyfillable</td>

            <td class="yes">✓</td>

            <td class="yes">✓</td>
          </tr>
        </table>
      </section>
	  <section>
      	<h2> <span style="color: red">♥</span> Let's merge them! <span style="color: red">♥</span></h2>
        <section>
        <img src="images/double_rainbow.jpg">
        </section>
        
        <section>
          <pre><code contenteditable class="xml">&lt;picture width="500" height="500"&gt;
   
   &lt;source media="(min-width: 45em)" 
       srcset="large-1.jpg 1x, large-2.jpg 2x"&gt;
   
   &lt;source media="(min-width: 18em)" 
       srcset="med-1.jpg 1x, med-2.jpg 2x"&gt;
   
   &lt;source srcset="small-1.jpg 1x, small-2.jpg 2x"&gt;
      	
   &lt;img src="small-1.jpg" alt=""&gt; 
      
   &lt;p&gt;Accessible text&lt;/p&gt;
   
&lt;/picture&gt;</code></pre>
        </section>
      </section>
      <section>
        <h2>Photo Attributions</h2>
        <ul>
          <li>
            <a href="http://w3cmemes.tumblr.com/">W3C memes</a>
          </li>

          <li>Double rainbow, by <a href=
          "http://www.flickr.com/photos/megpig/">meganjo</a>
          </li>
        </ul>
      </section>
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