michael@0: // Unicode support added by Jim Park -- 07/27/2007
michael@0: // Unicode support requires that all plugins take TCHARs instead as well. This
michael@0: // means existing plugins will not work for the Unicode version of NSIS unless
michael@0: // recompiled.  You have been warned.
michael@0: 
michael@0: #ifndef _EXDLL_H_
michael@0: #define _EXDLL_H_
michael@0: 
michael@0: #include <windows.h>
michael@0: #include "tchar.h"
michael@0: 
michael@0: #if defined(__GNUC__)
michael@0: #define UNUSED __attribute__((unused))
michael@0: #else
michael@0: #define UNUSED
michael@0: #endif
michael@0: 
michael@0: // only include this file from one place in your DLL.
michael@0: // (it is all static, if you use it in two places it will fail)
michael@0: 
michael@0: #define EXDLL_INIT()           {  \
michael@0:         g_stringsize=string_size; \
michael@0:         g_stacktop=stacktop;      \
michael@0:         g_variables=variables; }
michael@0: 
michael@0: // For page showing plug-ins
michael@0: #define WM_NOTIFY_OUTER_NEXT (WM_USER+0x8)
michael@0: #define WM_NOTIFY_CUSTOM_READY (WM_USER+0xd)
michael@0: 
michael@0: /* Jim Park: This char is compared as an int value and therefore
michael@0:    it's fine as an ASCII.  Do not need to change to wchar_t since
michael@0:    it will get the same integer value. */
michael@0: #define NOTIFY_BYE_BYE _T('x')
michael@0: 
michael@0: typedef struct _stack_t {
michael@0:   struct _stack_t *next;
michael@0:   TCHAR text[1]; // this should be the length of string_size
michael@0: } stack_t;
michael@0: 
michael@0: 
michael@0: static unsigned int g_stringsize;
michael@0: static stack_t **g_stacktop;
michael@0: static TCHAR *g_variables;
michael@0: 
michael@0: static int __stdcall popstring(TCHAR *str) UNUSED; // 0 on success, 1 on empty stack
michael@0: static void __stdcall pushstring(const TCHAR *str) UNUSED;
michael@0: static TCHAR * __stdcall getuservariable(const int varnum) UNUSED;
michael@0: static void __stdcall setuservariable(const int varnum, const TCHAR *var) UNUSED;
michael@0: 
michael@0: enum
michael@0: {
michael@0: INST_0,         // $0
michael@0: INST_1,         // $1
michael@0: INST_2,         // $2
michael@0: INST_3,         // $3
michael@0: INST_4,         // $4
michael@0: INST_5,         // $5
michael@0: INST_6,         // $6
michael@0: INST_7,         // $7
michael@0: INST_8,         // $8
michael@0: INST_9,         // $9
michael@0: INST_R0,        // $R0
michael@0: INST_R1,        // $R1
michael@0: INST_R2,        // $R2
michael@0: INST_R3,        // $R3
michael@0: INST_R4,        // $R4
michael@0: INST_R5,        // $R5
michael@0: INST_R6,        // $R6
michael@0: INST_R7,        // $R7
michael@0: INST_R8,        // $R8
michael@0: INST_R9,        // $R9
michael@0: INST_CMDLINE,   // $CMDLINE
michael@0: INST_INSTDIR,   // $INSTDIR
michael@0: INST_OUTDIR,    // $OUTDIR
michael@0: INST_EXEDIR,    // $EXEDIR
michael@0: INST_LANG,      // $LANGUAGE
michael@0: __INST_LAST
michael@0: };
michael@0: 
michael@0: typedef struct {
michael@0:   int autoclose;
michael@0:   int all_user_var;
michael@0:   int exec_error;
michael@0:   int abort;
michael@0:   int exec_reboot;
michael@0:   int reboot_called;
michael@0:   int XXX_cur_insttype; // deprecated
michael@0:   int XXX_insttype_changed; // deprecated
michael@0:   int silent;
michael@0:   int instdir_error;
michael@0:   int rtl;
michael@0:   int errlvl;
michael@0:   int alter_reg_view;
michael@0:   int status_update;
michael@0: } exec_flags_type;
michael@0: 
michael@0: typedef struct {
michael@0:   exec_flags_type *exec_flags;
michael@0:   int (__stdcall *ExecuteCodeSegment)(int, HWND);
michael@0:   void (__stdcall *validate_filename)(TCHAR *);
michael@0: } extra_parameters;
michael@0: 
michael@0: // utility functions (not required but often useful)
michael@0: static int __stdcall popstring(TCHAR *str)
michael@0: {
michael@0:   stack_t *th;
michael@0:   if (!g_stacktop || !*g_stacktop) return 1;
michael@0:   th=(*g_stacktop);
michael@0:   lstrcpy(str,th->text);
michael@0:   *g_stacktop = th->next;
michael@0:   GlobalFree((HGLOBAL)th);
michael@0:   return 0;
michael@0: }
michael@0: 
michael@0: static void __stdcall pushstring(const TCHAR *str)
michael@0: {
michael@0:   stack_t *th;
michael@0:   if (!g_stacktop) return;
michael@0:   th=(stack_t*)GlobalAlloc(GPTR,(sizeof(stack_t)+(g_stringsize)*sizeof(TCHAR)));
michael@0:   lstrcpyn(th->text,str,g_stringsize);
michael@0:   th->next=*g_stacktop;
michael@0:   *g_stacktop=th;
michael@0: }
michael@0: 
michael@0: static TCHAR * __stdcall getuservariable(const int varnum)
michael@0: {
michael@0:   if (varnum < 0 || varnum >= __INST_LAST) return NULL;
michael@0:   return g_variables+varnum*g_stringsize;
michael@0: }
michael@0: 
michael@0: static void __stdcall setuservariable(const int varnum, const TCHAR *var)
michael@0: {
michael@0: 	if (var != NULL && varnum >= 0 && varnum < __INST_LAST) 
michael@0: 		lstrcpy(g_variables + varnum*g_stringsize, var);
michael@0: }
michael@0: 
michael@0: #ifdef _UNICODE
michael@0: #define PopStringW(x) popstring(x)
michael@0: #define PushStringW(x) pushstring(x)
michael@0: #define SetUserVariableW(x,y) setuservariable(x,y)
michael@0: 
michael@0: static int __stdcall PopStringA(char* ansiStr)
michael@0: {
michael@0:    wchar_t* wideStr = (wchar_t*) GlobalAlloc(GPTR, g_stringsize*sizeof(wchar_t));
michael@0:    int rval = popstring(wideStr);
michael@0:    WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
michael@0:    GlobalFree((HGLOBAL)wideStr);
michael@0:    return rval;
michael@0: }
michael@0: 
michael@0: static void __stdcall PushStringA(const char* ansiStr)
michael@0: {
michael@0:    wchar_t* wideStr = (wchar_t*) GlobalAlloc(GPTR, g_stringsize*sizeof(wchar_t));
michael@0:    MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
michael@0:    pushstring(wideStr);
michael@0:    GlobalFree((HGLOBAL)wideStr);
michael@0:    return;
michael@0: }
michael@0: 
michael@0: static void __stdcall GetUserVariableW(const int varnum, wchar_t* wideStr)
michael@0: {
michael@0:    lstrcpyW(wideStr, getuservariable(varnum));
michael@0: }
michael@0: 
michael@0: static void __stdcall GetUserVariableA(const int varnum, char* ansiStr)
michael@0: {
michael@0:    wchar_t* wideStr = getuservariable(varnum);
michael@0:    WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
michael@0: }
michael@0: 
michael@0: static void __stdcall SetUserVariableA(const int varnum, const char* ansiStr)
michael@0: {
michael@0:    if (ansiStr != NULL && varnum >= 0 && varnum < __INST_LAST)
michael@0:    {
michael@0:       wchar_t* wideStr = g_variables + varnum * g_stringsize;
michael@0:       MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
michael@0:    }
michael@0: }
michael@0: 
michael@0: #else
michael@0: // ANSI defs
michael@0: 
michael@0: #define PopStringA(x) popstring(x)
michael@0: #define PushStringA(x) pushstring(x)
michael@0: #define SetUserVariableA(x,y) setuservariable(x,y)
michael@0: 
michael@0: static int __stdcall PopStringW(wchar_t* wideStr)
michael@0: {
michael@0:    char* ansiStr = (char*) GlobalAlloc(GPTR, g_stringsize);
michael@0:    int rval = popstring(ansiStr);
michael@0:    MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
michael@0:    GlobalFree((HGLOBAL)ansiStr);
michael@0:    return rval;
michael@0: }
michael@0: 
michael@0: static void __stdcall PushStringW(wchar_t* wideStr)
michael@0: {
michael@0:    char* ansiStr = (char*) GlobalAlloc(GPTR, g_stringsize);
michael@0:    WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
michael@0:    pushstring(ansiStr);
michael@0:    GlobalFree((HGLOBAL)ansiStr);
michael@0: }
michael@0: 
michael@0: static void __stdcall GetUserVariableW(const int varnum, wchar_t* wideStr)
michael@0: {
michael@0:    char* ansiStr = getuservariable(varnum);
michael@0:    MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
michael@0: }
michael@0: 
michael@0: static void __stdcall GetUserVariableA(const int varnum, char* ansiStr)
michael@0: {
michael@0:    lstrcpyA(ansiStr, getuservariable(varnum));
michael@0: }
michael@0: 
michael@0: static void __stdcall SetUserVariableW(const int varnum, const wchar_t* wideStr)
michael@0: {
michael@0:    if (wideStr != NULL && varnum >= 0 && varnum < __INST_LAST)
michael@0:    {
michael@0:       char* ansiStr = g_variables + varnum * g_stringsize;
michael@0:       WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
michael@0:    }
michael@0: }
michael@0: #endif
michael@0: 
michael@0: static BOOL __stdcall IsUnicode(void)
michael@0: {
michael@0: #ifdef _UNICODE
michael@0:    return TRUE;
michael@0: #else
michael@0:    return FALSE;
michael@0: #endif
michael@0: }
michael@0: 
michael@0: #endif//_EXDLL_H_