{"version":3,"sources":["Core/ImageFallback.ts"],"names":["define","require","exports","Object","defineProperty","value","ImageFallback","[object Object]","$","each","i","element","img","src","attr","fallbackUrl","data","on","e"],"mappings":"AAAAA,OAAO,CAAC,UAAW,WAAY,SAAUC,EAASC,GAC9C,aACAC,OAAOC,eAAeF,EAAS,aAAc,CAAEG,OAAO,IACtDH,EAAQI,mBAAgB,EAkBxBJ,EAAQI,cAjBR,MACIC,cACIC,EAAE,sBAAsBC,KAAK,CAACC,EAAGC,KAC7B,MAAMC,EAAMJ,EAAEG,GACRE,EAAMD,EAAIE,KAAK,OACfC,EAAcH,EAAII,KAAK,YACzBH,GAAOE,IACPH,EAAIK,GAAG,QAASC,IACRN,EAAIE,KAAK,QAAUC,GACnBH,EAAIE,KAAK,MAAOC,KAGxBH,EAAIE,KAAK,MAAOD","sourcesContent":["// This allows images to specify a fallback URL that is loaded when the requested image does not exist.\r\n// This can be used for localizing images by providing an English version as a fallback image.\r\n// To use this, both src and data-fallback have to be set.\r\nexport class ImageFallback {   \r\n    constructor() {\r\n        $('img[data-fallback]').each((i, element) => {\r\n            const img = $(element);\r\n            const src = img.attr('src');\r\n            const fallbackUrl = img.data('fallback');\r\n            if (src && fallbackUrl) {\r\n                img.on('error', e => {\r\n                    // Prevent endless loop by not setting the fallbackUrl more than one time\r\n                    if (img.attr('src') != fallbackUrl) {\r\n                        img.attr('src', fallbackUrl);\r\n                    }\r\n                });\r\n                // We have to do this so that onerror is fired if the image does not exist\r\n                img.attr('src', src);\r\n            }\r\n        });\r\n    } \r\n}"],"file":"ImageFallback.js"}