feature(amp-live-list): add update feature (#3260)

ampproject · May 23, 2016 · b1ec91e · b1ec91e
1 parent 9f44c79
commit b1ec91e
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Showing 7 changed files with 435 additions and 53 deletions.
diff --git a/build-system/server.js b/build-system/server.js
@@ -24,11 +24,12 @@ var bodyParser = require('body-parser');
 var clr = require('connect-livereload');
 var finalhandler = require('finalhandler');
 var fs = BBPromise.promisifyAll(require('fs'));
+var jsdom = require('jsdom');
 var path = require('path');
-var url = require('url');
 var request = require('request');
 var serveIndex = require('serve-index');
 var serveStatic = require('serve-static');
+var url = require('url');
 
 var args = Array.prototype.slice.call(process.argv, 2, 4);
 var paths = args[0];
@@ -103,6 +104,34 @@ app.use('/examples.build/live-list.amp.max.html', function(req, res) {
   });
 });
 
+var liveListUpdateFile = '/examples.build/live-list-update.amp.max.html';
+var liveListUpdateFullPath = `${process.cwd()}${liveListUpdateFile}`;
+var liveListFile = fs.readFileSync(liveListUpdateFullPath);
+var ctr = 0;
+var doc = jsdom.jsdom(liveListFile);
+var win = doc.defaultView;
+app.use(liveListUpdateFile, function(req, res) {
+  var doctype = '<!doctype html>\n';
+  res.setHeader('Content-Type', 'text/html');
+  res.statusCode = 200;
+  if (ctr != 0) {
+    if (Math.random() < .7) {
+      var item1 = doc.querySelector('#list-item-1');
+      var item1Content = item1.querySelectorAll('.content');
+      item1.setAttribute('data-update-time', Date.now());
+      item1Content[0].textContent = Math.floor(Math.random() * 10);
+      item1Content[1].textContent = Math.floor(Math.random() * 10);
+    } else {
+      // Sometimes we want an empty response to simulate no changes.
+      res.end(`${doctype}<html></html>`);
+      return;
+    }
+  }
+  var outerHTML = doc.documentElement./*OK*/outerHTML;
+  res.end(`${doctype}${outerHTML}`);
+  ctr++;
+});
+
 // Proxy with unminified JS.
 // Example:
 // http://localhost:8000/max/s/www.washingtonpost.com/amphtml/news/post-politics/wp/2016/02/21/bernie-sanders-says-lower-turnout-contributed-to-his-nevada-loss-to-hillary-clinton/

diff --git a/examples/img/ampicon.png b/examples/img/ampicon.png
diff --git a/examples/live-list-update.amp.html b/examples/live-list-update.amp.html
@@ -0,0 +1,109 @@
+<!doctype html>
+<html ⚡>
+<head>
+  <meta charset="utf-8">
+  <title>Lorem Ipsum | PublisherName</title>
+  <link rel="canonical" href="amps.html" >
+  <meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
+  <link href='https://fonts.googleapis.com/css?family=Georgia|Open+Sans|Roboto' rel='stylesheet' type='text/css'>
+  <style amp-custom>
+    amp-live-list > [items] {
+      display: flex;
+      flex-direction: column;
+    }
+
+    .amp-live-list-item {
+      height: 100px;
+      background-color: #f8f8f8;
+      border-bottom: 1px solid rgba(0, 0, 0, .12);
+    }
+
+    .card {
+      display: flex;
+      margin: 15px;
+      padding: 10px;
+      justify-content: center;
+      align-items: center;
+      background-color: #fff;
+      box-shadow: rgba(0, 0, 0, .3) 0 0 5px;
+    }
+
+    .card > div {
+      flex-basis: 50%;
+    }
+
+    .side {
+      display: flex;
+      align-items: center;
+      justify-content: space-around;
+    }
+
+    .content {
+      font-size: 1.5rem;
+    }
+
+    header {
+      font-size: 2rem;
+    }
+  </style>
+  <link href='https://fonts.googleapis.com/css?family=Georgia|Open+Sans|Roboto' rel='stylesheet' type='text/css'>
+  <script async custom-element="amp-live-list" src="https://cdn.ampproject.org/v0/amp-live-list-0.1.js"></script>
+  <style amp-boilerplate>body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}</style><noscript><style amp-boilerplate>body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}</style></noscript>
+  <script async src="https://cdn.ampproject.org/v0.js"></script>
+</head>
+<body>
+  <header>
+    Scoreboard refresh takes 15 seconds.
+  </header>
+  <amp-live-list
+    layout="container"
+    data-poll-interval="15000"
+    data-max-items-per-page="5"
+    id="my-live-list">
+    <button id="btn" update on="tap:my-live-list.update">You have updates</button>
+    <div items>
+      <div id="list-item-2" data-sort-time="1462814963693">
+        <div class="card">
+          <div class="side side-left">
+            <div class="logo">
+              <amp-img src="/examples/img/ampicon.png"
+                  layout="fixed" height="50" width="50">
+              </amp-img>
+            </div>
+            <div class="content">2</div>
+          </div>
+          <div class="side side-right">
+            <div class="content">2</div>
+            <div class="logo">
+              <amp-img src="/examples/img/ampicon.png"
+                  layout="fixed" height="50" width="50">
+              </amp-img>
+            </div>
+          </div>
+        </div>
+      </div>
+      <div id="list-item-1" data-sort-time="1462814955597">
+        <div class="card">
+          <div class="side side-left">
+            <div class="logo">
+              <amp-img src="/examples/img/ampicon.png"
+                  layout="fixed" height="50" width="50">
+              </amp-img>
+            </div>
+            <div class="content">2</div>
+          </div>
+          <div class="side side-right">
+            <div class="content">2</div>
+            <div class="logo">
+              <amp-img src="/examples/img/ampicon.png"
+                  layout="fixed" height="50" width="50">
+              </amp-img>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </amp-live-list>
+</body>
+</html>
+