68 lines
2.0 KiB
JavaScript
Executable File
68 lines
2.0 KiB
JavaScript
Executable File
(function () {
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// don't emit events from inside the previews themselves
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if (window.location.search.match(/receiver/gi)) {
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return;
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}
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var socket = io.connect(window.location.origin),
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socketId = Math.random().toString().slice(2);
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console.log('View slide notes at ' + window.location.origin + '/notes/' + socketId);
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window.open(window.location.origin + '/notes/' + socketId, 'notes-' + socketId);
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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() {
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var slideElement = Reveal.getCurrentSlide(),
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notesElement = slideElement.querySelector('aside.notes');
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var messageData = {
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notes: '',
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markdown: false,
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socketId: socketId,
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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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}
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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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socket.emit('statechanged', messageData);
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}
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// When a new notes window connects, post our current state
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socket.on('new-subscriber', function (data) {
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post();
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});
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// When the state changes from inside of the speaker view
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socket.on('statechanged-speaker', function (data) {
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Reveal.setState(data.state);
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});
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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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