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( function( $ ) {
/**
* A function to help debouncing.
*/
var debounce = function( func, wait ) {
var timeout, args, context, timestamp;
return function() {
context = this;
args = [].slice.call( arguments, 0 );
timestamp = new Date();
var later = function() {
var last = ( new Date() ) - timestamp;
if ( last < wait ) {
timeout = setTimeout( later, wait - last );
} else {
timeout = null;
func.apply( context, args );
}
};
if ( ! timeout ) {
timeout = setTimeout( later, wait );
}
};
};
/**
* A function to resize videos.
*/
function responsive_videos() {
$( '.jetpack-video-wrapper' ).find( 'embed, iframe, object' ).each( function() {
var video_element, video_width, video_height, video_ratio, video_wrapper, video_margin, container_width;
video_element = $( this );
video_margin = 0;
if ( video_element.parents( '.jetpack-video-wrapper' ).prev( 'p' ).css( 'text-align' ) === 'center' ) {
video_margin = '0 auto';
}
if ( ! video_element.attr( 'data-ratio' ) ) {
video_element
.attr( 'data-ratio', this.height / this.width )
.attr( 'data-width', this.width )
.attr( 'data-height', this.height )
.css( {
'display' : 'block',
'margin' : video_margin
} );
}
video_width = video_element.attr( 'data-width' );
video_height = video_element.attr( 'data-height' );
video_ratio = video_element.attr( 'data-ratio' );
video_wrapper = video_element.parent();
container_width = video_wrapper.width();
if ( video_ratio === 'Infinity' ) {
video_width = '100%';
}
video_element
.removeAttr( 'height' )
.removeAttr( 'width' );
if ( video_width > container_width ) {
video_element
.width( container_width )
.height( container_width * video_ratio );
} else {
video_element
.width( video_width )
.height( video_height );
}
} );
}
/**
* Load responsive_videos().
* Trigger resize to make sure responsive_videos() is loaded after IS.
*/
$( window ).load( responsive_videos ).resize( debounce( responsive_videos, 100 ) ).trigger( 'resize' );
$( document ).on( 'post-load', responsive_videos );
} )( jQuery );
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