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null check background

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This commit is contained in:
Hakim El Hattab
2014-04-28 12:31:34 +02:00
parent 1391253cb8
commit fbf999ec81
1 changed files with 23 additions and 19 deletions
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4
js/reveal.js
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@@ -2326,6 +2326,7 @@
// Show the corresponding background element // Show the corresponding background element
var indices = getIndices( slide ); var indices = getIndices( slide );
var background = getSlideBackground( indices.h, indices.v ); var background = getSlideBackground( indices.h, indices.v );
if( background ) {
background.style.display = 'block'; background.style.display = 'block';
// If the background contains media, load it // If the background contains media, load it
@@ -2351,6 +2352,7 @@
background.appendChild( video ); background.appendChild( video );
} }
} }
}
} }
@@ -2366,7 +2368,9 @@
// Hide the corresponding background element // Hide the corresponding background element
var indices = getIndices( slide ); var indices = getIndices( slide );
var background = getSlideBackground( indices.h, indices.v ); var background = getSlideBackground( indices.h, indices.v );
if( background ) {
background.style.display = 'none'; background.style.display = 'none';
}
} }