From f51b7370f030c5cd1235fa7a23514a7e1ccef2dd Mon Sep 17 00:00:00 2001
From: xnum
Date: Mon, 23 Nov 2015 20:38:26 +0800
Subject: Add Slide Mode using reveal.js and some part of reveal-md

---
 public/plugin/notes-server/client.js | 60 ++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 public/plugin/notes-server/client.js

(limited to 'public/plugin/notes-server/client.js')

diff --git a/public/plugin/notes-server/client.js b/public/plugin/notes-server/client.js
new file mode 100644
index 00000000..628586ff
--- /dev/null
+++ b/public/plugin/notes-server/client.js
@@ -0,0 +1,60 @@
+(function() {
+
+	// don't emit events from inside the previews themselves
+	if( window.location.search.match( /receiver/gi ) ) { return; }
+
+	var socket = io.connect( window.location.origin ),
+		socketId = Math.random().toString().slice( 2 );
+
+	console.log( 'View slide notes at ' + window.location.origin + '/notes/' + socketId );
+
+	window.open( window.location.origin + '/notes/' + socketId, 'notes-' + socketId );
+
+	/**
+	 * Posts the current slide data to the notes window
+	 */
+	function post() {
+
+		var slideElement = Reveal.getCurrentSlide(),
+			notesElement = slideElement.querySelector( 'aside.notes' );
+
+		var messageData = {
+			notes: '',
+			markdown: false,
+			socketId: socketId,
+			state: Reveal.getState()
+		};
+
+		// Look for notes defined in a slide attribute
+		if( slideElement.hasAttribute( 'data-notes' ) ) {
+			messageData.notes = slideElement.getAttribute( 'data-notes' );
+		}
+
+		// Look for notes defined in an aside element
+		if( notesElement ) {
+			messageData.notes = notesElement.innerHTML;
+			messageData.markdown = typeof notesElement.getAttribute( 'data-markdown' ) === 'string';
+		}
+
+		socket.emit( 'statechanged', messageData );
+
+	}
+
+	// When a new notes window connects, post our current state
+	socket.on( 'connect', function( data ) {
+		post();
+	} );
+
+	// Monitor events that trigger a change in state
+	Reveal.addEventListener( 'slidechanged', post );
+	Reveal.addEventListener( 'fragmentshown', post );
+	Reveal.addEventListener( 'fragmenthidden', post );
+	Reveal.addEventListener( 'overviewhidden', post );
+	Reveal.addEventListener( 'overviewshown', post );
+	Reveal.addEventListener( 'paused', post );
+	Reveal.addEventListener( 'resumed', post );
+
+	// Post the initial state
+	post();
+
+}());
-- 
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