#include <simgear/misc/sg_path.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
+#include <simgear/misc/sg_dir.hxx>
+#include <simgear/nasal/cppbind/NasalHash.hxx>
#include <simgear/nasal/nasal.h>
+#include <simgear/threads/SGQueue.hxx>
+#include <simgear/props/props.hxx>
+
+// Required only for MSVC
+#ifdef _MSC_VER
+# include <Scripting/NasalModelData.hxx>
+#endif
+
+#include <map>
+
class FGNasalScript;
+class FGNasalListener;
+class SGCondition;
+class FGNasalModelData;
+
+namespace simgear { class BufferedLogCallback; }
+
+SGPropertyNode* ghostToPropNode(naRef ref);
+SGCondition* conditionGhost(naRef r);
class FGNasalSys : public SGSubsystem
{
FGNasalSys();
virtual ~FGNasalSys();
virtual void init();
- virtual void update(double dt) { /* noop */ }
+ virtual void update(double dt);
// Loads a nasal script from an external file and inserts it as a
// global module of the specified name.
- void loadModule(SGPath file, const char* moduleName);
+ bool loadModule(SGPath file, const char* moduleName);
// Simple hook to run arbitrary source code. Returns a bool to
// indicate successful execution. Does *not* return any Nasal
// this function. The "name" argument specifies the "file name"
// for the source code that will be printed in Nasal stack traces
// on error.
- FGNasalScript* parseScript(const char* src, const char* name=0);
+ // FGNasalScript* parseScript(const char* src, const char* name=0);
// Implementation of the settimer extension function
- void setTimer(int argc, naRef* args);
+ void setTimer(naContext c, int argc, naRef* args);
// Implementation of the setlistener extension function
- void setListener(int argc, naRef* args);
+ naRef setListener(naContext c, int argc, naRef* args);
+ naRef removeListener(naContext c, int argc, naRef* args);
// Returns a ghost wrapper for the current _cmdArg
naRef cmdArgGhost();
+
+ void setCmdArg(SGPropertyNode* aNode);
+
+ /**
+ * create Nasal props.Node for an SGPropertyNode*
+ * This is the actual ghost, wrapped in a Nasal sugar class.
+ */
+ naRef wrappedPropsNode(SGPropertyNode* aProps);
// Callbacks for command and timer bindings
+ virtual bool handleCommand( const char* moduleName,
+ const char* fileName,
+ const char* src,
+ const SGPropertyNode* arg = 0 );
virtual bool handleCommand(const SGPropertyNode* arg);
- void createModule(const char* moduleName, const char* fileName,
- const char* src, int len);
-
- void screenPrint(const char* src);
-
+ bool createModule(const char* moduleName, const char* fileName,
+ const char* src, int len, const SGPropertyNode* cmdarg=0,
+ int argc=0, naRef*args=0);
+
+ void deleteModule(const char* moduleName);
+
+ /**
+ * Set member of specified hash to given value
+ */
+ void hashset(naRef hash, const char* key, naRef val);
+
+ /**
+ * Set member of globals hash to given value
+ */
+ void globalsSet(const char* key, naRef val);
+
+ naRef call(naRef code, int argc, naRef* args, naRef locals);
+
+ naRef callMethod(naRef code, naRef self, int argc, naRef* args, naRef locals);
+
+ naRef propNodeGhost(SGPropertyNode* handle);
+
+ void registerToLoad(FGNasalModelData* data);
+ void registerToUnload(FGNasalModelData* data);
+
+ // can't call this 'globals' due to naming clash
+ naRef nasalGlobals() const
+ { return _globals; }
+
+ naContext context() const
+ { return _context; }
+
+ nasal::Hash getGlobals() const
+ { return nasal::Hash(_globals, _context); }
+
+ // This mechanism is here to allow naRefs to be passed to
+ // locations "outside" the interpreter. Normally, such a
+ // reference would be garbage collected unexpectedly. By passing
+ // it to gcSave and getting a key/handle, it can be cached in a
+ // globals.__gcsave hash. Be sure to release it with gcRelease
+ // when done.
+ int gcSave(naRef r);
+ void gcRelease(int key);
+
+ /// retrive the associated log object, for displaying log
+ /// output somewhere (a UI, presumably)
+ simgear::BufferedLogCallback* log() const
+ { return _log; }
private:
- friend class FGNasalScript;
+ //friend class FGNasalScript;
friend class FGNasalListener;
+ friend class FGNasalModuleListener;
+
+ SGLockedQueue<SGSharedPtr<FGNasalModelData> > _loadList;
+ SGLockedQueue<SGSharedPtr<FGNasalModelData> > _unloadList;
+
+ // Delay removing items of the _loadList to ensure the are already attached
+ // to the scene graph (eg. enables to retrieve world position in load
+ // callback).
+ bool _delay_load;
//
// FGTimer subclass for handling Nasal timer callbacks.
//
struct NasalTimer {
virtual void timerExpired();
+ virtual ~NasalTimer() {}
naRef handler;
int gcKey;
FGNasalSys* nasal;
};
+ // Listener
+ std::map<int, FGNasalListener *> _listener;
+ std::vector<FGNasalListener *> _dead_listener;
+
+ static int _listenerId;
+
void loadPropertyScripts();
- void hashset(naRef hash, const char* key, naRef val);
- void logError(naContext);
+ void loadPropertyScripts(SGPropertyNode* n);
+ void loadScriptDirectory(simgear::Dir nasalDir);
+ void addModule(std::string moduleName, simgear::PathList scripts);
+ static void logError(naContext);
naRef parse(const char* filename, const char* buf, int len);
naRef genPropsModule();
- naRef propNodeGhost(SGPropertyNode* handle);
-
- // This mechanism is here to allow naRefs to be passed to
- // locations "outside" the interpreter. Normally, such a
- // reference would be garbage collected unexpectedly. By passing
- // it to gcSave and getting a key/handle, it can be cached in a
- // globals.__gcsave hash. Be sure to release it with gcRelease
- // when done.
- int gcSave(naRef r);
- void gcRelease(int key);
naContext _context;
- naRef _globals;
+ naRef _globals,
+ _string;
- SGPropertyNode* _cmdArg;
+ SGPropertyNode_ptr _cmdArg;
- int _nextGCKey;
- naRef _gcHash;
-
- public: void handleTimer(NasalTimer* t);
+ simgear::BufferedLogCallback* _log;
+public:
+ void handleTimer(NasalTimer* t);
};
+#if 0
class FGNasalScript {
public:
~FGNasalScript() { _nas->gcRelease(_gcKey); }
naCall(_nas->_context, _code, 0, &n, naNil(), naNil());
return naGetError(_nas->_context) == 0;
}
-
+
+ FGNasalSys* sys() const { return _nas; }
private:
friend class FGNasalSys;
naRef _code;
int _gcKey;
FGNasalSys* _nas;
};
-
-class FGNasalListener : public SGPropertyChangeListener {
-public:
- FGNasalListener(naRef handler, FGNasalSys* nasal)
- : _handler(handler), _nas(nasal) {}
-
- void valueChanged(SGPropertyNode* node) {
- _nas->_cmdArg = node;
- naContext c = naNewContext();
- naModUnlock();
- naCall(c, _handler, 0, 0, naNil(), naNil());
- naModLock();
- if(naGetError(c))
- _nas->logError(c);
- naFreeContext(c);
- }
-
-private:
- friend class FGNasalSys;
- naRef _handler;
- FGNasalSys* _nas;
-};
+#endif
#endif // __NASALSYS_HXX
projects / flightgear.git / blobdiff