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