diff --git a/plugin/notes/notes.html b/plugin/notes/notes.html new file mode 100644 index 0000000..0c4eca5 --- /dev/null +++ b/plugin/notes/notes.html @@ -0,0 +1,792 @@ + + + + + + reveal.js - Slide Notes + + + + + + +
Loading speaker view...
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Upcoming
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+ + + + + diff --git a/plugin/notes/notes.js b/plugin/notes/notes.js new file mode 100644 index 0000000..a5b15b4 --- /dev/null +++ b/plugin/notes/notes.js @@ -0,0 +1,147 @@ +/** + * Handles opening of and synchronization with the reveal.js + * notes window. + * + * Handshake process: + * 1. This window posts 'connect' to notes window + * - Includes URL of presentation to show + * 2. Notes window responds with 'connected' when it is available + * 3. This window proceeds to send the current presentation state + * to the notes window + */ +var RevealNotes = (function() { + + function openNotes( notesFilePath ) { + + if( !notesFilePath ) { + var jsFileLocation = document.querySelector('script[src$="notes.js"]').src; // this js file path + jsFileLocation = jsFileLocation.replace(/notes\.js(\?.*)?$/, ''); // the js folder path + notesFilePath = jsFileLocation + 'notes.html'; + } + + var notesPopup = window.open( notesFilePath, 'reveal.js - Notes', 'width=1100,height=700' ); + + if( !notesPopup ) { + alert( 'Speaker view popup failed to open. Please make sure popups are allowed and reopen the speaker view.' ); + return; + } + + // Allow popup window access to Reveal API + notesPopup.Reveal = window.Reveal; + + /** + * Connect to the notes window through a postmessage handshake. + * Using postmessage enables us to work in situations where the + * origins differ, such as a presentation being opened from the + * file system. + */ + function connect() { + // Keep trying to connect until we get a 'connected' message back + var connectInterval = setInterval( function() { + notesPopup.postMessage( JSON.stringify( { + namespace: 'reveal-notes', + type: 'connect', + url: window.location.protocol + '//' + window.location.host + window.location.pathname + window.location.search, + state: Reveal.getState() + } ), '*' ); + }, 500 ); + + window.addEventListener( 'message', function( event ) { + var data = JSON.parse( event.data ); + if( data && data.namespace === 'reveal-notes' && data.type === 'connected' ) { + clearInterval( connectInterval ); + onConnected(); + } + } ); + } + + /** + * Posts the current slide data to the notes window + */ + function post( event ) { + + var slideElement = Reveal.getCurrentSlide(), + notesElement = slideElement.querySelector( 'aside.notes' ), + fragmentElement = slideElement.querySelector( '.current-fragment' ); + + var messageData = { + namespace: 'reveal-notes', + type: 'state', + notes: '', + markdown: false, + whitespace: 'normal', + state: Reveal.getState() + }; + + // Look for notes defined in a slide attribute + if( slideElement.hasAttribute( 'data-notes' ) ) { + messageData.notes = slideElement.getAttribute( 'data-notes' ); + messageData.whitespace = 'pre-wrap'; + } + + // Look for notes defined in a fragment + if( fragmentElement ) { + var fragmentNotes = fragmentElement.querySelector( 'aside.notes' ); + if( fragmentNotes ) { + notesElement = fragmentNotes; + } + else if( fragmentElement.hasAttribute( 'data-notes' ) ) { + messageData.notes = fragmentElement.getAttribute( 'data-notes' ); + messageData.whitespace = 'pre-wrap'; + + // In case there are slide notes + notesElement = null; + } + } + + // Look for notes defined in an aside element + if( notesElement ) { + messageData.notes = notesElement.innerHTML; + messageData.markdown = typeof notesElement.getAttribute( 'data-markdown' ) === 'string'; + } + + notesPopup.postMessage( JSON.stringify( messageData ), '*' ); + + } + + /** + * Called once we have established a connection to the notes + * window. + */ + function onConnected() { + + // 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(); + + } + + connect(); + + } + + if( !/receiver/i.test( window.location.search ) ) { + + // 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 + Reveal.addKeyBinding({keyCode: 83, key: 'S', description: 'Speaker notes view'}, function() { + openNotes(); + } ); + + } + + return { open: openNotes }; + +})();