Implement Cache Songs, Cancel Loading, Admin Panel, Custom Category, Localization

public/src/js/abstractfile.js

@@ -46,22 +46,22 @@ class RemoteFile{
 			}
 		}
 	}
-	arrayBuffer(){
+	arrayBuffer(cancellationToken){
 		return loader.ajax(this.url, request => {
 			request.responseType = "arraybuffer"
-		})
+		}, false, cancellationToken)
 	}
-	read(encoding){
+	read(encoding, cancellationToken){
 		if(encoding){
-			return this.blob().then(blob => readFile(blob, false, encoding))
+			return this.blob(cancellationToken).then(blob => readFile(blob, false, encoding))
 		}else{
-			return loader.ajax(this.url)
+			return loader.ajax(this.url, null, false, cancellationToken)
 		}
 	}
-	blob(){
+	blob(cancellationToken){
 		return loader.ajax(this.url, request => {
 			request.responseType = "blob"
-		})
+		}, false, cancellationToken)
 	}
 }
 class LocalFile{