woocommerce/assets/js/frontend/cart-fragments.js

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JavaScript
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/* global wc_cart_fragments_params */
jQuery( function( $ ) {
// wc_cart_fragments_params is required to continue, ensure the object exists
if ( typeof wc_cart_fragments_params === 'undefined' ) {
return false;
}
/* Storage Handling */
var $supports_html5_storage;
try {
$supports_html5_storage = ( 'sessionStorage' in window && window.sessionStorage !== null );
window.sessionStorage.setItem( 'wc', 'test' );
window.sessionStorage.removeItem( 'wc' );
} catch( err ) {
$supports_html5_storage = false;
}
var $fragment_refresh = {
url: wc_cart_fragments_params.wc_ajax_url + 'get_refreshed_fragments',
type: 'POST',
success: function( data ) {
if ( data && data.fragments ) {
$.each( data.fragments, function( key, value ) {
$( key ).replaceWith( value );
});
if ( $supports_html5_storage ) {
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sessionStorage.setItem( wc_cart_fragments_params.fragment_name, JSON.stringify( data.fragments ) );
sessionStorage.setItem( 'wc_cart_hash', data.cart_hash );
}
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$( document.body ).trigger( 'wc_fragments_refreshed' );
}
}
};
/* Cart Handling */
if ( $supports_html5_storage ) {
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$( document.body ).bind( 'added_to_cart', function( event, fragments, cart_hash ) {
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sessionStorage.setItem( wc_cart_fragments_params.fragment_name, JSON.stringify( fragments ) );
sessionStorage.setItem( 'wc_cart_hash', cart_hash );
});
try {
var wc_fragments = $.parseJSON( sessionStorage.getItem( wc_cart_fragments_params.fragment_name ) ),
cart_hash = sessionStorage.getItem( 'wc_cart_hash' ),
cookie_hash = $.cookie( 'woocommerce_cart_hash' );
if ( cart_hash === null || cart_hash === undefined || cart_hash === '' ) {
cart_hash = '';
}
if ( cookie_hash === null || cookie_hash === undefined || cookie_hash === '' ) {
cookie_hash = '';
}
if ( wc_fragments && wc_fragments['div.widget_shopping_cart_content'] && cart_hash === cookie_hash ) {
$.each( wc_fragments, function( key, value ) {
$( key ).replaceWith(value);
});
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$( document.body ).trigger( 'wc_fragments_loaded' );
} else {
throw 'No fragment';
}
} catch( err ) {
$.ajax( $fragment_refresh );
}
} else {
$.ajax( $fragment_refresh );
}
/* Cart Hiding */
if ( $.cookie( 'woocommerce_items_in_cart' ) > 0 ) {
$( '.hide_cart_widget_if_empty' ).closest( '.widget_shopping_cart' ).show();
} else {
$( '.hide_cart_widget_if_empty' ).closest( '.widget_shopping_cart' ).hide();
}
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$( document.body ).bind( 'adding_to_cart', function() {
$( '.hide_cart_widget_if_empty' ).closest( '.widget_shopping_cart' ).show();
});
});