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import lazySizes from 'lazysizes';

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( () => {

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'use strict';

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// Lazyload for background images.

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const lazyloadBackground = ( element ) => {

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let bgValue = element.getAttribute( 'data-bg-image' );

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let property = 'background-image';

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if ( ! bgValue ) {

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bgValue = element.getAttribute( 'data-bg' );

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property = 'background';

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}

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if ( bgValue ) {

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const importantRegex = /\s*\!\s*important/i;

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const value = bgValue.replace( importantRegex, '' );

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const priority = value !== bgValue ? 'important' : '';

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element.style.setProperty( property, value, priority );

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}

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};

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document.addEventListener( 'lazybeforeunveil', function( e ) {

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// Lazy background image.

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lazyloadBackground( e.target );

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} );

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lazySizes.init();

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} )();

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