package { import flash.external.ExternalInterface; internal class ExternalCall { /*public function ExternalCall() { } */ public static function Simple(callback:String):void { ExternalInterface.call(callback); } public static function FileQueued(callback:String, file_object:Object):void { ExternalInterface.call(callback, EscapeMessage(file_object)); } public static function FileQueueError(callback:String, error_code:Number, file_object:Object, message:String):void { ExternalInterface.call(callback, EscapeMessage(file_object), EscapeMessage(error_code), EscapeMessage(message)); } public static function FileDialogComplete(callback:String, num_files_selected:Number, num_files_queued:Number, total_num_files_queued:Number):void { ExternalInterface.call(callback, EscapeMessage(num_files_selected), EscapeMessage(num_files_queued), EscapeMessage(total_num_files_queued)); } public static function UploadStart(callback:String, file_object:Object):void { ExternalInterface.call(callback, EscapeMessage(file_object)); } public static function UploadProgress(callback:String, file_object:Object, bytes_loaded:uint, bytes_total:uint):void { ExternalInterface.call(callback, EscapeMessage(file_object), EscapeMessage(bytes_loaded), EscapeMessage(bytes_total)); } public static function UploadSuccess(callback:String, file_object:Object, server_data:String, responseReceived:Boolean):void { ExternalInterface.call(callback, EscapeMessage(file_object), EscapeMessage(server_data), EscapeMessage(responseReceived)); } public static function UploadError(callback:String, error_code:Number, file_object:Object, message:String):void { ExternalInterface.call(callback, EscapeMessage(file_object), EscapeMessage(error_code), EscapeMessage(message)); } public static function UploadComplete(callback:String, file_object:Object):void { ExternalInterface.call(callback, EscapeMessage(file_object)); } public static function Debug(callback:String, message:String):void { ExternalInterface.call(callback, EscapeMessage(message)); } public static function Bool(callback:String):Boolean { return ExternalInterface.call(callback); } /* Escapes all the backslashes which are not translated correctly in the Flash -> JavaScript Interface * * These functions had to be developed because the ExternalInterface has a bug that simply places the * value a string in quotes (except for a " which is escaped) in a JavaScript string literal which * is executed by the browser. These often results in improperly escaped string literals if your * input string has any backslash characters. For example the string: * "c:\Program Files\uploadtools\" * is placed in a string literal (with quotes escaped) and becomes: * var __flash__temp = "\"c:\Program Files\uploadtools\\""; * This statement will cause errors when executed by the JavaScript interpreter: * 1) The first \" is succesfully transformed to a " * 2) \P is translated to P and the \ is lost * 3) \u is interpreted as a unicode character and causes an error in IE * 4) \\ is translated to \ * 5) leaving an unescaped " which causes an error * * I fixed this by escaping \ characters in all outgoing strings. The above escaped string becomes: * var __flash__temp = "\"c:\\Program Files\\uploadtools\\\""; * which contains the correct string literal. * * Note: The "var __flash__temp = " portion of the example is part of the ExternalInterface not part of * my escaping routine. */ private static function EscapeMessage(message:*):* { if (message is String) { message = EscapeString(message); } else if (message is Array) { message = EscapeArray(message); } else if (message is Object) { message = EscapeObject(message); } return message; } private static function EscapeString(message:String):String { var replacePattern:RegExp = /\\/g; //new RegExp("/\\/", "g"); return message.replace(replacePattern, "\\\\"); } private static function EscapeArray(message_array:Array):Array { var length:uint = message_array.length; var i:uint = 0; for (i; i < length; i++) { message_array[i] = EscapeMessage(message_array[i]); } return message_array; } private static function EscapeObject(message_obj:Object):Object { for (var name:String in message_obj) { message_obj[name] = EscapeMessage(message_obj[name]); } return message_obj; } } }