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cart-fragments.js
188 lines
| 1 | /* global wc_cart_fragments_params, Cookies */ |
| 2 | jQuery( function( $ ) { |
| 3 | |
| 4 | // wc_cart_fragments_params is required to continue, ensure the object exists |
| 5 | if ( typeof wc_cart_fragments_params === 'undefined' ) { |
| 6 | return false; |
| 7 | } |
| 8 | |
| 9 | /* Storage Handling */ |
| 10 | var $supports_html5_storage = true, |
| 11 | cart_hash_key = wc_cart_fragments_params.cart_hash_key; |
| 12 | |
| 13 | try { |
| 14 | $supports_html5_storage = ( 'sessionStorage' in window && window.sessionStorage !== null ); |
| 15 | window.sessionStorage.setItem( 'wc', 'test' ); |
| 16 | window.sessionStorage.removeItem( 'wc' ); |
| 17 | window.localStorage.setItem( 'wc', 'test' ); |
| 18 | window.localStorage.removeItem( 'wc' ); |
| 19 | } catch( err ) { |
| 20 | $supports_html5_storage = false; |
| 21 | } |
| 22 | |
| 23 | /* Cart session creation time to base expiration on */ |
| 24 | function set_cart_creation_timestamp() { |
| 25 | if ( $supports_html5_storage ) { |
| 26 | sessionStorage.setItem( 'wc_cart_created', ( new Date() ).getTime() ); |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | /** Set the cart hash in both session and local storage */ |
| 31 | function set_cart_hash( cart_hash ) { |
| 32 | if ( $supports_html5_storage ) { |
| 33 | localStorage.setItem( cart_hash_key, cart_hash ); |
| 34 | sessionStorage.setItem( cart_hash_key, cart_hash ); |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | var $fragment_refresh = { |
| 39 | url: wc_cart_fragments_params.wc_ajax_url.toString().replace( '%%endpoint%%', 'get_refreshed_fragments' ), |
| 40 | type: 'POST', |
| 41 | data: { |
| 42 | time: new Date().getTime() |
| 43 | }, |
| 44 | timeout: wc_cart_fragments_params.request_timeout, |
| 45 | success: function( data ) { |
| 46 | if ( data && data.fragments ) { |
| 47 | |
| 48 | $.each( data.fragments, function( key, value ) { |
| 49 | $( key ).replaceWith( value ); |
| 50 | }); |
| 51 | |
| 52 | if ( $supports_html5_storage ) { |
| 53 | sessionStorage.setItem( wc_cart_fragments_params.fragment_name, JSON.stringify( data.fragments ) ); |
| 54 | set_cart_hash( data.cart_hash ); |
| 55 | |
| 56 | if ( data.cart_hash ) { |
| 57 | set_cart_creation_timestamp(); |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | $( document.body ).trigger( 'wc_fragments_refreshed' ); |
| 62 | } |
| 63 | }, |
| 64 | error: function() { |
| 65 | $( document.body ).trigger( 'wc_fragments_ajax_error' ); |
| 66 | } |
| 67 | }; |
| 68 | |
| 69 | /* Named callback for refreshing cart fragment */ |
| 70 | function refresh_cart_fragment() { |
| 71 | $.ajax( $fragment_refresh ); |
| 72 | } |
| 73 | |
| 74 | /* Cart Handling */ |
| 75 | if ( $supports_html5_storage ) { |
| 76 | |
| 77 | var cart_timeout = null, |
| 78 | day_in_ms = ( 24 * 60 * 60 * 1000 ); |
| 79 | |
| 80 | $( document.body ).on( 'wc_fragment_refresh updated_wc_div', function() { |
| 81 | refresh_cart_fragment(); |
| 82 | }); |
| 83 | |
| 84 | $( document.body ).on( 'added_to_cart removed_from_cart', function( event, fragments, cart_hash ) { |
| 85 | var prev_cart_hash = sessionStorage.getItem( cart_hash_key ); |
| 86 | |
| 87 | if ( prev_cart_hash === null || prev_cart_hash === undefined || prev_cart_hash === '' ) { |
| 88 | set_cart_creation_timestamp(); |
| 89 | } |
| 90 | |
| 91 | sessionStorage.setItem( wc_cart_fragments_params.fragment_name, JSON.stringify( fragments ) ); |
| 92 | set_cart_hash( cart_hash ); |
| 93 | }); |
| 94 | |
| 95 | $( document.body ).on( 'wc_fragments_refreshed', function() { |
| 96 | clearTimeout( cart_timeout ); |
| 97 | cart_timeout = setTimeout( refresh_cart_fragment, day_in_ms ); |
| 98 | } ); |
| 99 | |
| 100 | // Refresh when storage changes in another tab |
| 101 | $( window ).on( 'storage onstorage', function ( e ) { |
| 102 | if ( |
| 103 | cart_hash_key === e.originalEvent.key && localStorage.getItem( cart_hash_key ) !== sessionStorage.getItem( cart_hash_key ) |
| 104 | ) { |
| 105 | refresh_cart_fragment(); |
| 106 | } |
| 107 | }); |
| 108 | |
| 109 | // Refresh when page is shown after back button (safari) |
| 110 | $( window ).on( 'pageshow' , function( e ) { |
| 111 | if ( e.originalEvent.persisted ) { |
| 112 | $( '.widget_shopping_cart_content' ).empty(); |
| 113 | $( document.body ).trigger( 'wc_fragment_refresh' ); |
| 114 | } |
| 115 | } ); |
| 116 | |
| 117 | try { |
| 118 | var wc_fragments = JSON.parse( sessionStorage.getItem( wc_cart_fragments_params.fragment_name ) ), |
| 119 | cart_hash = sessionStorage.getItem( cart_hash_key ), |
| 120 | cookie_hash = Cookies.get( 'woocommerce_cart_hash'), |
| 121 | cart_created = sessionStorage.getItem( 'wc_cart_created' ); |
| 122 | |
| 123 | if ( cart_hash === null || cart_hash === undefined || cart_hash === '' ) { |
| 124 | cart_hash = ''; |
| 125 | } |
| 126 | |
| 127 | if ( cookie_hash === null || cookie_hash === undefined || cookie_hash === '' ) { |
| 128 | cookie_hash = ''; |
| 129 | } |
| 130 | |
| 131 | if ( cart_hash && ( cart_created === null || cart_created === undefined || cart_created === '' ) ) { |
| 132 | throw 'No cart_created'; |
| 133 | } |
| 134 | |
| 135 | if ( cart_created ) { |
| 136 | var cart_expiration = ( ( 1 * cart_created ) + day_in_ms ), |
| 137 | timestamp_now = ( new Date() ).getTime(); |
| 138 | if ( cart_expiration < timestamp_now ) { |
| 139 | throw 'Fragment expired'; |
| 140 | } |
| 141 | cart_timeout = setTimeout( refresh_cart_fragment, ( cart_expiration - timestamp_now ) ); |
| 142 | } |
| 143 | |
| 144 | if ( wc_fragments && wc_fragments['div.widget_shopping_cart_content'] && cart_hash === cookie_hash ) { |
| 145 | |
| 146 | $.each( wc_fragments, function( key, value ) { |
| 147 | $( key ).replaceWith(value); |
| 148 | }); |
| 149 | |
| 150 | $( document.body ).trigger( 'wc_fragments_loaded' ); |
| 151 | } else { |
| 152 | throw 'No fragment'; |
| 153 | } |
| 154 | |
| 155 | } catch( err ) { |
| 156 | refresh_cart_fragment(); |
| 157 | } |
| 158 | |
| 159 | } else { |
| 160 | refresh_cart_fragment(); |
| 161 | } |
| 162 | |
| 163 | /* Cart Hiding */ |
| 164 | if ( Cookies.get( 'woocommerce_items_in_cart' ) > 0 ) { |
| 165 | $( '.hide_cart_widget_if_empty' ).closest( '.widget_shopping_cart' ).show(); |
| 166 | } else { |
| 167 | $( '.hide_cart_widget_if_empty' ).closest( '.widget_shopping_cart' ).hide(); |
| 168 | } |
| 169 | |
| 170 | $( document.body ).on( 'adding_to_cart', function() { |
| 171 | $( '.hide_cart_widget_if_empty' ).closest( '.widget_shopping_cart' ).show(); |
| 172 | }); |
| 173 | |
| 174 | // Customiser support. |
| 175 | var hasSelectiveRefresh = ( |
| 176 | 'undefined' !== typeof wp && |
| 177 | wp.customize && |
| 178 | wp.customize.selectiveRefresh && |
| 179 | wp.customize.widgetsPreview && |
| 180 | wp.customize.widgetsPreview.WidgetPartial |
| 181 | ); |
| 182 | if ( hasSelectiveRefresh ) { |
| 183 | wp.customize.selectiveRefresh.bind( 'partial-content-rendered', function() { |
| 184 | refresh_cart_fragment(); |
| 185 | } ); |
| 186 | } |
| 187 | }); |
| 188 |