multiplex boosting

_freeze/site_libs/revealjs/plugin/multiplex/multiplex.js

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+(function() {
+
+  // emulate async script load
+  window.addEventListener( 'load', function() {
+    var multiplex = Reveal.getConfig().multiplex;
+    var socketId = multiplex.id;
+    var socket = io.connect(multiplex.url);
+
+    function post( evt ) {
+      var messageData = {
+        state: Reveal.getState(),
+        secret: multiplex.secret,
+        socketId: multiplex.id,
+        content: (evt || {}).content
+      };
+      socket.emit( 'multiplex-statechanged', messageData );
+    };
+
+    // master
+    if (multiplex.secret !== null) {
+
+        // Don't emit events from inside of notes windows
+        if ( window.location.search.match( /receiver/gi ) ) { return; }
+
+        // post once the page is loaded, so the client follows also on "open URL".
+        post();
+
+        // Monitor events that trigger a change in state
+        Reveal.on( 'slidechanged', post );
+        Reveal.on( 'fragmentshown', post );
+        Reveal.on( 'fragmenthidden', post );
+        Reveal.on( 'overviewhidden', post );
+        Reveal.on( 'overviewshown', post );
+        Reveal.on( 'paused', post );
+        Reveal.on( 'resumed', post );
+        document.addEventListener( 'send', post ); // broadcast custom events sent by other plugins
+
+    // client
+    } else {
+      socket.on(multiplex.id, function(message) {
+        // ignore data from sockets that aren't ours
+        if (message.socketId !== socketId) { return; }
+        if( window.location.host === 'localhost:1947' ) return;
+
+        if ( message.state ) {
+          Reveal.setState(message.state);
+        }
+        if ( message.content ) {
+          // forward custom events to other plugins
+          var event = new CustomEvent('received');
+          event.content = message.content;
+          document.dispatchEvent( event );
+        }
+      });
+    }
+  });
+}());

_freeze/site_libs/revealjs/plugin/multiplex/plugin.yml

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+name: multiplex
+script: [socket.io.js, multiplex.js]
+register: false
+config:
+  multiplex:
+    secret: null
+    id: null
+    url: "https://reveal-multiplex.glitch.me/"