1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/**
* Handles opening of and synchronization with the reveal.js
* notes window.
*/
var RevealNotes = (function() {
function openNotes() {
var notesPopup = window.open( 'plugin/notes/notes.html', 'reveal.js - Notes', 'width=1120,height=850' );
Reveal.addEventListener( 'slidechanged', post );
// Posts the current slide data to the notes window
function post() {
var slideElement = Reveal.getCurrentSlide(),
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;
}
var notes = slideElement.querySelector( 'aside.notes' );
var slideData = {
notes : notes ? notes.innerHTML : '',
indexh : indexh,
indexv : indexv,
nextindexh : nextindexh,
nextindexv : nextindexv,
markdown : notes ? typeof notes.getAttribute( 'data-markdown' ) === 'string' : false
};
notesPopup.postMessage( JSON.stringify( slideData ), '*' );
}
// The main presentation is kept in sync when navigating the
// note slides so that the popup may be used as a remote
window.addEventListener( 'message', function( event ) {
var data = JSON.parse( event.data );
if( data && typeof data.indexh === 'number' && typeof data.indexv === 'number' ) {
Reveal.slide( data.indexh, data.indexv );
}
} );
// Navigate to the current slide when the notes are loaded
notesPopup.addEventListener( 'load', post, 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 }
})();
|