BACKENDS: Improve AbstractFSNode::createDirectory() stubs

backends/fs/amigaos4/amigaos4-fs.cpp

@@ -444,8 +444,8 @@ Common::WriteStream *AmigaOSFilesystemNode::createWriteStream() {
 }
 
 bool AmigaOSFilesystemNode::createDirectory() {
-	error("Not supported");
-	return false;
+	warning("AmigaOSFilesystemNode::createDirectory(): Not supported");
+	return _bIsValid && _bIsDirectory;
 }
 
 #endif //defined(__amigaos4__)

backends/fs/chroot/chroot-fs.cpp

@@ -101,8 +101,7 @@ Common::WriteStream *ChRootFilesystemNode::createWriteStream() {
 }
 
 bool ChRootFilesystemNode::createDirectory() {
-	error("Not supported");
-	return false;
+	return _realNode->createDirectory();
 }
 
 Common::String ChRootFilesystemNode::addPathComponent(const Common::String &path, const Common::String &component) {

backends/fs/ds/ds-fs.cpp

@@ -212,8 +212,7 @@ Common::WriteStream *DSFileSystemNode::createWriteStream() {
 }
 
 bool DSFileSystemNode::createDirectory() {
-	error("Not supported");
-	return false;
+	return _isValid && _isDirectory;
 }
 
 //////////////////////////////////////////////////////////////////////////
@@ -399,8 +398,8 @@ Common::WriteStream *GBAMPFileSystemNode::createWriteStream() {
 }
 
 bool GBAMPFileSystemNode::createDirectory() {
-	error("Not supported");
-	return false;
+	warning("GBAMPFileSystemNode::createDirectory(): Not supported");
+	return _isValid && _isDirectory;
 }
 
 

backends/fs/n64/n64-fs.cpp

@@ -161,8 +161,7 @@ Common::WriteStream *N64FilesystemNode::createWriteStream() {
 }
 
 bool N64FilesystemNode::createDirectory() {
-	error("Not supported");
-	return false;
+	return _isValid && _isDirectory;
 }
 
 #endif //#ifdef __N64__

backends/fs/ps2/ps2-fs.cpp

@@ -444,8 +444,8 @@ Common::WriteStream *Ps2FilesystemNode::createWriteStream() {
 }
 
 bool Ps2FilesystemNode::createDirectory() {
-	error("Not supported");
-	return false;
+	warning("Ps2FilesystemNode::createDirectory(): Not supported");
+	return _isHere && _isDirectory;
 }
 
 #endif

backends/fs/psp/psp-fs.cpp

@@ -240,8 +240,8 @@ Common::WriteStream *PSPFilesystemNode::createWriteStream() {
 }
 
 bool PSPFilesystemNode::createDirectory() {
-	error("Not supported");
-	return false;
+	warning("PSPFilesystemNode::createDirectory(): Not supported");
+	return _isValid && _isDirectory;
 }
 
 #endif //#ifdef __PSP__

backends/fs/symbian/symbian-fs.cpp

@@ -233,8 +233,8 @@ Common::WriteStream *SymbianFilesystemNode::createWriteStream() {
 }
 
 bool SymbianFilesystemNode::createDirectory() {
-	error("Not supported");
-	return false;
+	warning("SymbianFilesystemNode::createDirectory(): Not supported");
+	return _isValid && _isDirectory;
 }
 
 #endif //#if defined(__SYMBIAN32__)

backends/fs/wii/wii-fs.cpp

@@ -214,8 +214,8 @@ Common::WriteStream *WiiFilesystemNode::createWriteStream() {
 }
 
 bool WiiFilesystemNode::createDirectory() {
-	error("Not supported");
-	return false;
+	warning("WiiFilesystemNode::createDirectory(): Not supported");
+	return _exists && _isDirectory;
 }
 
 #endif //#if defined(__WII__)

backends/platform/dc/dc-fs.cpp

@@ -71,6 +71,7 @@ public:
 	virtual AbstractFSNode *getChild(const Common::String &n) const;
 	virtual bool getChildren(AbstractFSList &list, ListMode mode, bool hidden) const;
 	virtual Common::SeekableReadStream *createReadStream() { return 0; }
+	virtual bool createDirectory() { return true; }
 };
 
 /* A file/directory which does not exist */

backends/platform/tizen/fs.cpp

@@ -439,3 +439,8 @@ Common::WriteStream *TizenFilesystemNode::createWriteStream() {
 	}
 	return result;
 }
+
+bool TizenFilesystemNode::createDirectory() {
+	warning("TizenFilesystemNode::createDirectory(): Not supported");
+	return _isValid && isDirectory();
+}

backends/platform/tizen/fs.h

@@ -83,6 +83,7 @@ public:
 
 	Common::SeekableReadStream *createReadStream();
 	Common::WriteStream *createWriteStream();
+	bool createDirectory();
 
 protected:
 	TizenFilesystemNode(const Common::String &root, const Common::String &p);