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-rw-r--r--js/reveal.js31
1 files changed, 15 insertions, 16 deletions
diff --git a/js/reveal.js b/js/reveal.js
index 72c4373..bf4194f 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -2748,10 +2748,10 @@
// Show the horizontal slide if it's within the view distance
if( distanceX < viewDistance ) {
- showSlide( horizontalSlide );
+ loadSlide( horizontalSlide );
}
else {
- hideSlide( horizontalSlide );
+ unloadSlide( horizontalSlide );
}
if( verticalSlidesLength ) {
@@ -2764,10 +2764,10 @@
distanceY = x === ( indexh || 0 ) ? Math.abs( ( indexv || 0 ) - y ) : Math.abs( y - oy );
if( distanceX + distanceY < viewDistance ) {
- showSlide( verticalSlide );
+ loadSlide( verticalSlide );
}
else {
- hideSlide( verticalSlide );
+ unloadSlide( verticalSlide );
}
}
@@ -3166,14 +3166,9 @@
*
* @param {HTMLElement} slide Slide to show
*/
- /**
- * Called when the given slide is within the configured view
- * distance. Shows the slide element and loads any content
- * that is set to load lazily (data-src).
- *
- * @param {HTMLElement} slide Slide to show
- */
- function showSlide( slide ) {
+ function loadSlide( slide, options ) {
+
+ options = options || {};
// Show the slide element
slide.style.display = config.display;
@@ -3253,7 +3248,7 @@
background.appendChild( video );
}
// Iframes
- else if( backgroundIframe ) {
+ else if( backgroundIframe && options.excludeIframes !== true ) {
var iframe = document.createElement( 'iframe' );
iframe.setAttribute( 'allowfullscreen', '' );
iframe.setAttribute( 'mozallowfullscreen', '' );
@@ -3282,12 +3277,12 @@
}
/**
- * Called when the given slide is moved outside of the
- * configured view distance.
+ * Unloads and hides the given slide. This is called when the
+ * slide is moved outside of the configured view distance.
*
* @param {HTMLElement} slide
*/
- function hideSlide( slide ) {
+ function unloadSlide( slide ) {
// Hide the slide element
slide.style.display = 'none';
@@ -5117,6 +5112,10 @@
isAutoSliding: isAutoSliding,
isSpeakerNotes: isSpeakerNotes,
+ // Slide preloading
+ loadSlide: loadSlide,
+ unloadSlide: unloadSlide,
+
// Adds or removes all internal event listeners (such as keyboard)
addEventListeners: addEventListeners,
removeEventListeners: removeEventListeners,