1 files changed, 100 insertions, 0 deletions
diff --git a/plugin/notes/notes.js b/plugin/notes/notes.js
new file mode 100644
index 0000000..63de05a
--- /dev/null
+++ b/plugin/notes/notes.js
@@ -0,0 +1,100 @@
+/**
+ * Handles opening of and synchronization with the reveal.js
+ * notes window.
+ */
+var RevealNotes = (function() {
+
+	function openNotes() {
+		var jsFileLocation = document.querySelector('script[src$="notes.js"]').src;  // this js file path
+		jsFileLocation = jsFileLocation.replace(/notes\.js(\?.*)?$/, '');   // the js folder path
+		var notesPopup = window.open( jsFileLocation + 'notes.html', 'reveal.js - Notes', 'width=1120,height=850' );
+
+		// Fires when slide is changed
+		Reveal.addEventListener( 'slidechanged', function( event ) {
+			post('slidechanged');
+		} );
+
+		// Fires when a fragment is shown
+		Reveal.addEventListener( 'fragmentshown', function( event ) {
+			post('fragmentshown');
+		} );
+
+		// Fires when a fragment is hidden
+		Reveal.addEventListener( 'fragmenthidden', function( event ) {
+			post('fragmenthidden');
+		} );
+
+		/**
+		 * Posts the current slide data to the notes window
+		 *
+		 * @param {String} eventType Expecting 'slidechanged', 'fragmentshown' 
+		 * or 'fragmenthidden' set in the events above to define the needed 
+		 * slideDate.
+		 */
+		function post( eventType ) {
+			var slideElement = Reveal.getCurrentSlide(),
+				messageData;
+
+			if( eventType === 'slidechanged' ) {
+				var notes = slideElement.querySelector( 'aside.notes' ),
+					indexh = Reveal.getIndices().h,
+					indexv = Reveal.getIndices().v,
+					nextindexh,
+					nextindexv;
+
+				if( slideElement.nextElementSibling && slideElement.parentNode.nodeName == 'SECTION' ) {
+					nextindexh = indexh;
+					nextindexv = indexv + 1;
+				} else {
+					nextindexh = indexh + 1;
+					nextindexv = 0;
+				}
+
+				messageData = {
+					notes : notes ? notes.innerHTML : '',
+					indexh : indexh,
+					indexv : indexv,
+					nextindexh : nextindexh,
+					nextindexv : nextindexv,
+					markdown : notes ? typeof notes.getAttribute( 'data-markdown' ) === 'string' : false
+				};
+			}
+			else if( eventType === 'fragmentshown' ) {
+				messageData = {
+					fragment : 'next'
+				};
+			}
+			else if( eventType === 'fragmenthidden' ) {
+				messageData = {
+					fragment : 'prev'
+				};
+			}
+
+			notesPopup.postMessage( JSON.stringify( messageData ), '*' );
+		}
+
+		// Navigate to the current slide when the notes are loaded
+		notesPopup.addEventListener( 'load', function( event ) {
+			post('slidechanged');
+		}, false );
+	}
+
+	// If the there's a 'notes' query set, open directly
+	if( window.location.search.match( /(\?|\&)notes/gi ) !== null ) {
+		openNotes();
+	}
+
+	// Open the notes when the 's' key is hit
+	document.addEventListener( 'keydown', function( event ) {
+		// Disregard the event if the target is editable or a
+		// modifier is present
+		if ( document.querySelector( ':focus' ) !== null || event.shiftKey || event.altKey || event.ctrlKey || event.metaKey ) return;
+
+		if( event.keyCode === 83 ) {
+			event.preventDefault();
+			openNotes();
+		}
+	}, false );
+
+	return { open: openNotes };
+})();