Formats: Add DefaultFilename property

Il2CppInspector.Common/FileFormatReaders/AABReader.cs

@@ -20,6 +20,8 @@ namespace Il2CppInspector
 
         public AABReader(Stream stream) : base(stream) { }
 
+        public override string DefaultFilename => "Package.aab";
+
         protected override bool Init() {
 
             // Check if it's a zip file first because ZipFile.OpenRead is extremely slow if it isn't

Il2CppInspector.Common/FileFormatReaders/APKReader.cs

@@ -20,6 +20,8 @@ namespace Il2CppInspector
 
         public APKReader(Stream stream) : base(stream) { }
 
+        public override string DefaultFilename => "Package.apk";
+
         protected override bool Init() {
 
             // Check if it's a zip file first because ZipFile.OpenRead is extremely slow if it isn't

Il2CppInspector.Common/FileFormatReaders/ElfReader.cs

@@ -115,6 +115,8 @@ namespace Il2CppInspector
 
         public ElfReader(Stream stream) : base(stream) { }
 
+        public override string DefaultFilename => "libil2cpp.so";
+
         public override string Format => Bits == 32 ? "ELF" : "ELF64";
 
         public override string Arch => (Elf) elf_header.e_machine switch {

Il2CppInspector.Common/FileFormatReaders/FileFormatReader.cs

@@ -20,6 +20,7 @@ namespace Il2CppInspector
         double Version { get; set; }
         long Length { get; }
         uint NumImages { get; }
+        string DefaultFilename { get; }
         IEnumerable<IFileFormatReader> Images { get; }
         IFileFormatReader this[uint index] { get; }
         long Position { get; set; }
@@ -122,6 +123,8 @@ namespace Il2CppInspector
 
         public BinaryObjectReader Stream => this;
 
+        public abstract string DefaultFilename { get; }
+
         public long Length => BaseStream.Length;
 
         public uint NumImages { get; protected set; } = 1;

Il2CppInspector.Common/FileFormatReaders/MachOReader.cs

@@ -77,6 +77,8 @@ namespace Il2CppInspector
 
         protected MachOReader(Stream stream) : base(stream) { }
 
+        public override string DefaultFilename => "app";
+
         public override string Format => "Mach-O " + (Bits == 32 ? "32-bit" : "64-bit");
 
         public override string Arch => (MachO)header.CPUType switch

Il2CppInspector.Common/FileFormatReaders/PEReader.cs

@@ -23,6 +23,9 @@ namespace Il2CppInspector
 
         public PEReader(Stream stream) : base(stream) {}
 
+        public override string DefaultFilename => "GameAssembly.dll";
+
+
         public override string Format => pe is PEOptHeader32 ? "PE32" : "PE32+";
 
         public override string Arch => coff.Machine switch {

Il2CppInspector.Common/FileFormatReaders/SElfReader.cs

@@ -28,6 +28,8 @@ namespace Il2CppInspector
     {
         public SElfReader(Stream stream) : base(stream) { }
 
+        public override string DefaultFilename => "libil2cpp.so";
+
         public override string Format => sceData.ProductType == (ulong) SElfExInfoTypes.PTYPE_FAKE? "FSELF" : "SELF";
 
         public override string Arch => "x64";

Il2CppInspector.Common/FileFormatReaders/UBReader.cs

@@ -15,6 +15,8 @@ namespace Il2CppInspector
 
         public UBReader(Stream stream) : base(stream) { }
 
+        public override string DefaultFilename => "app";
+
         protected override bool Init() {
             // Fat headers are always big-endian regardless of architectures
             Endianness = Endianness.Big;