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add missing src from merge...

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1 parent 09d8ad2 commit 18d537576a0957c67491fe4288a8eedebb743a5c Andy Wu committed Oct 27, 2012
@@ -0,0 +1,320 @@
+#include "plugin.h"
+#include "tokenizer.h"
+
+#ifdef _WINDOWS
+#include <windows.h>
+BOOL APIENTRY DllMain( HANDLE hModule,
+ DWORD ul_reason_for_call,
+ LPVOID lpReserved )
+{
+ return TRUE;
+}
+#else
+#include <errno.h>
+#include <string.h>
+
+extern int errno;
+#endif
+
+SendPluginEv SendPluginEvent;
+
+string g_GetSysErrMsg( void )
+{
+ string strError = "Unknown";
+ // Problem loading
+#ifdef _WINDOWS
+ int nErrorCode = GetLastError();
+ LPTSTR s;
+ if ( ::FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+ NULL, nErrorCode, 0, ( LPTSTR ) &s, 0, NULL ) )
+ {
+ strError = s;
+ }
+ else
+ {
+ char szBuf[ 20 ];
+ _snprintf_s( szBuf, _countof(szBuf), 19, "%d", nErrorCode );
+ strError = szBuf;
+ }
+#else
+ char szError[80];
+ if ( strerror_r( errno, szError, sizeof(szError) ) )
+ {
+ strError = "no description found";
+ }
+ else
+ {
+ strError = szError;
+ }
+#endif
+ return strError;
+}
+
+void g_sleep( unsigned int mseconds )
+{
+#ifdef _WINDOWS
+ Sleep( mseconds );
+#else
+ usleep( mseconds * 1000 );
+#endif
+}
+
+string& g_trim( string& str )
+{
+ // Whitespace characters
+ char whspc[] = " \t\r\n\v\f";
+
+ // Whack off first part
+ size_t pos = str.find_first_not_of( whspc );
+
+ if ( pos != string::npos )
+ str.replace( 0, pos, "" );
+
+ // Whack off trailing stuff
+ pos = str.find_last_not_of( whspc );
+
+ if ( pos != string::npos )
+ str.replace( pos + 1, str.length() - pos, "" );
+
+ return str;
+}
+
+void g_tokenize( const string& str, const string& delimiters, vector<string>& tokens )
+{
+ tokenize( str, tokens, delimiters );
+}
+
+char* SetEventFunc( SendPluginEv funcPtr )
+{
+ static char * szObjList = onGetObjList();
+ SendPluginEvent = funcPtr;
+ return szObjList;
+}
+
+
+const int nMAXSIZE = 512;
+char* g_pszRetVal = NULL;
+
+//-----------------------------------------------------------
+// Map from an object Id to an object instance
+//-----------------------------------------------------------
+typedef std::map<string, JSExt*> StringToJExt_T;
+
+//-----------------------------------------------------------
+// Map from a browser context to an id mapping
+//-----------------------------------------------------------
+typedef std::map<void*, StringToJExt_T*> VoidToMap_T;
+
+VoidToMap_T g_context2Map;
+
+class GlobalSharedModule
+{
+
+public:
+ GlobalSharedModule( void )
+ {
+ g_pszRetVal = new char[ nMAXSIZE ];
+ }
+
+ ~GlobalSharedModule()
+ {
+ delete [] g_pszRetVal;
+
+ VoidToMap_T::iterator posMaps;
+
+ for ( posMaps = g_context2Map.begin(); posMaps != g_context2Map.end(); ++posMaps )
+ {
+ StringToJExt_T& id2Obj = *posMaps->second;
+ StringToJExt_T::iterator posMap;
+
+ for ( posMap = id2Obj.begin(); posMap != id2Obj.end(); ++posMap )
+ {
+ JSExt* pJSExt = posMap->second;
+
+ if ( pJSExt->CanDelete() )
+ {
+ delete pJSExt;
+ }
+ }
+
+ id2Obj.erase( id2Obj.begin(), id2Obj.end() );
+ }
+
+ g_context2Map.erase( g_context2Map.begin(), g_context2Map.end() );
+ }
+};
+
+GlobalSharedModule g_sharedModule;
+
+char* g_str2global( const string& strRetVal )
+{
+ int nLen = strRetVal.size();
+
+ if ( nLen >= nMAXSIZE )
+ {
+ delete [] g_pszRetVal;
+ g_pszRetVal = new char[ nLen + 1 ];
+ }
+
+ else
+ {
+ // To minimaize the number of memory reallocations, the assumption
+ // is that in most times this will be the case
+ delete [] g_pszRetVal;
+ g_pszRetVal = new char[ nMAXSIZE ];
+ }
+
+ strcpy( g_pszRetVal, strRetVal.c_str() );
+ return g_pszRetVal;
+}
+
+bool g_unregisterObject( const string& strObjId, void* pContext )
+{
+ // Called by the plugin extension implementation
+ // if the extension handles the deletion of its object
+
+ StringToJExt_T * pID2Obj = NULL;
+
+ VoidToMap_T::iterator iter = g_context2Map.find( pContext );
+
+ if ( iter != g_context2Map.end() )
+ {
+ pID2Obj = iter->second;
+ }
+ else
+ {
+ return false;
+ }
+
+ StringToJExt_T& mapID2Obj = *pID2Obj;
+
+ StringToJExt_T::iterator r = mapID2Obj.find( strObjId );
+
+ if ( r == mapID2Obj.end() )
+ {
+ return false;
+ }
+
+ mapID2Obj.erase( strObjId );
+ return true;
+}
+
+char* InvokeFunction( const char* szCommand, void* pContext )
+{
+ StringToJExt_T * pID2Obj = NULL;
+
+ VoidToMap_T::iterator iter = g_context2Map.find( pContext );
+
+ if ( iter != g_context2Map.end() )
+ {
+ pID2Obj = iter->second;
+ }
+ else
+ {
+ pID2Obj = new StringToJExt_T;
+ g_context2Map[ pContext ] = pID2Obj;
+ }
+
+ StringToJExt_T& mapID2Obj = *pID2Obj;
+
+ string strFullCommand = szCommand;
+ vector<string> arParams;
+ g_tokenize( strFullCommand, " ", arParams );
+ string strCommand = arParams[ 0 ];
+ string strRetVal = szERROR;
+
+ if ( strCommand == szCREATE )
+ {
+ string strClassName = arParams[ 1 ];
+ string strObjId = arParams[ 2 ];
+
+ StringToJExt_T::iterator r = mapID2Obj.find( strObjId );
+
+ if ( r != mapID2Obj.end() )
+ {
+ strRetVal += strObjId;
+ strRetVal += " :Object already exists.";
+ return g_str2global( strRetVal );
+ }
+
+ JSExt* pJSExt = onCreateObject( strClassName, strObjId );
+
+ if ( pJSExt == NULL )
+ {
+ strRetVal += strObjId;
+ strRetVal += " :Unknown object type ";
+ strRetVal += strClassName;
+ return g_str2global( strRetVal );
+ }
+
+ pJSExt->m_pContext = pContext;
+ mapID2Obj[ strObjId ] = pJSExt;
+
+ strRetVal = szOK;
+ strRetVal += strObjId;
+ return g_str2global( strRetVal );
+ }
+ else
+ if ( strCommand == szINVOKE )
+ {
+ string strObjId = arParams[ 1 ];
+ string strMethod = arParams[ 2 ];
+
+ StringToJExt_T::iterator r = mapID2Obj.find( strObjId );
+
+ if ( r == mapID2Obj.end() )
+ {
+ strRetVal += strObjId;
+ strRetVal += " :No object found for id.";
+ return g_str2global( strRetVal );
+ }
+
+ JSExt* pJSExt = r->second;
+
+ size_t nLoc = strFullCommand.find( strObjId );
+
+ if ( nLoc == string::npos )
+ {
+ strRetVal += strObjId;
+ strRetVal += " :Internal InvokeMethod error.";
+ return g_str2global( strRetVal );
+ }
+
+ if ( strMethod == szDISPOSE )
+ {
+ StringToJExt_T::iterator r = mapID2Obj.find( strObjId );
+
+ if ( r == mapID2Obj.end() )
+ {
+ strRetVal = szERROR;
+ strRetVal += strObjId;
+ return g_str2global( strRetVal );
+ }
+
+ JSExt * pJSExt = mapID2Obj[ strObjId ];
+
+ if ( pJSExt->CanDelete() )
+ {
+ delete pJSExt;
+ }
+
+ mapID2Obj.erase( strObjId );
+ strRetVal = szOK;
+ strRetVal += strObjId;
+ return g_str2global( strRetVal );
+ }
+
+ size_t nSuffixLoc = nLoc + strObjId.size();
+ string strInvoke = strFullCommand.substr( nSuffixLoc );
+ strInvoke = g_trim( strInvoke );
+ strRetVal = pJSExt->InvokeMethod( strInvoke );
+ return g_str2global( strRetVal );
+ }
+
+ strRetVal += " :Unknown command ";
+ strRetVal += strCommand;
+ return g_str2global( strRetVal );
+}
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
@@ -0,0 +1,70 @@
+#ifndef _PLUGIN_H
+#define _PLUGIN_H
+
+#include <map>
+#include <string>
+#include <vector>
+#include <unistd.h>
+//#include "tokenizer.h"
+
+using namespace std;
+
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+//%% Functions exported by this DLL
+//%% Should always be only SetEventFunc and InvokeFunction
+//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+// g++ requires extern "C" otherwise the names of SetEventFunc and InvokeFunction
+// are mangled C++ style. MS Visual Studio doesn't seem to care though.
+extern "C"
+{
+ typedef void (*SendPluginEv)( const char* szEvent, void* pContext );
+ char* SetEventFunc(SendPluginEv funcPtr);
+ char* InvokeFunction( const char* szCommand, void* pContext );
+}
+
+// JNEXT Framework function of the form:
+// typedef void (*SendPluginEv)( const char* szEvent );
+// used to notify JavaScript of an asynchronous event
+extern SendPluginEv SendPluginEvent;
+
+/////////////////////////////////////////////////////////////////////////
+// Constants and methods common to all JNEXT extensions types
+/////////////////////////////////////////////////////////////////////////
+#define szERROR "Error "
+#define szOK "Ok "
+
+#define szDISPOSE "Dispose"
+#define szINVOKE "InvokeMethod"
+#define szCREATE "CreateObj"
+
+/////////////////////////////////////////////////////////////////////////
+// Utility functions
+/////////////////////////////////////////////////////////////////////////
+string& g_trim( string& str );
+void g_tokenize(const string& str,const string& delimiters, vector<string>& tokens);
+char* g_str2static( const string& strRetVal );
+void g_sleep( unsigned int mseconds );
+bool g_unregisterObject( const string& strObjId, void* pContext );
+
+
+/////////////////////////////////////////////////////////////////////////
+// Abstract extension object
+/////////////////////////////////////////////////////////////////////////
+class JSExt
+{
+public:
+ virtual ~JSExt() {};
+ virtual string InvokeMethod( const string& strCommand ) = 0;
+ virtual bool CanDelete( void ) = 0;
+ virtual void TryDelete( void ) {}
+public:
+ void* m_pContext;
+};
+
+/////////////////////////////////////////////////////////////////////////
+// Callback functions to be implemented by the plugin implementation
+/////////////////////////////////////////////////////////////////////////
+extern char* onGetObjList( void );
+extern JSExt* onCreateObject( const string& strClassName, const string& strObjId );
+
+#endif
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