Merge branch 'presenter_notes_server' of https://github.com/rmurphey/reveal.js into notes

js/slidenotes.js

@@ -0,0 +1,35 @@
+(function() {
+  // don't emit events from inside the previews themselves
+  var qs = window.location.href.split('?');
+  if (qs.length > 1 && qs[1].match('receiver')) { return; }
+
+  var socket = io.connect(window.location.origin);
+  var socketId = Math.random().toString().slice(2);
+  console.log('View slide notes at ' + window.location.origin + '/_notes/' + socketId);
+
+  Reveal.addEventListener( 'slidechanged', function( event ) {
+    var nextindexh;
+    var nextindexv;
+    var slideElement = event.currentSlide;
+
+    if (slideElement.nextElementSibling && slideElement.parentNode.nodeName == 'SECTION') {
+      nextindexh = event.indexh;
+      nextindexv = event.indexv + 1;
+    } else {
+      nextindexh = event.indexh + 1;
+      nextindexv = 0;
+    }
+
+    var notes = slideElement.querySelector('aside.notes');
+    var slideData = {
+      notes : notes ? notes.innerHTML : '',
+      indexh : event.indexh,
+      indexv : event.indexv,
+      nextindexh : nextindexh,
+      nextindexv : nextindexv,
+      socketId : socketId
+    };
+
+    socket.emit('slidechanged', slideData);
+  } );
+}());