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/*
   Splash Screen Plugin for Miranda-IM (www.miranda-im.org)
   (c) 2004-2007 nullbie, (c) 2005-2007 Thief

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

   File name      : $URL: http://svn.miranda.im/mainrepo/splashscreen/trunk/src/main.cpp $
   Revision       : $Rev: 1586 $
   Last change on : $Date: 2010-04-09 12:34:01 +0300 (Пт, 09 апр 2010) $
   Last change by : $Author: Thief $

*/

#include "headers.h"

HINSTANCE hInst = 0;
PLUGINLINK *pluginLink;

static HMODULE hUserDll = NULL;
static HMODULE hAdvaimg = NULL;

pfnConvertPng2dib png2dibConvertor = NULL;

bool bstartup = true; // startup?
bool bserviceinvoked = false;
bool bmodulesloaded = false; // modules are loaded
bool png2dibavail = true; // can we use png2dib service?

char *mirandaVerString;
char szPrefix[128];
PVOID pVerInfo;

// path to miranda's dir, config file path, splash path, sound path
char szMirDir[MAX_PATH], szIniFile[MAX_PATH], szDllName[MAX_PATH], szSplashFile[MAX_PATH], szSoundFile [MAX_PATH], szhAdvaimgPath [MAX_PATH];
#ifdef _DEBUG
char szLogFile[MAX_PATH];
#endif
static char inBuf[80];

SPLASHOPTS options;

// Options handle. Declarated in options.cpp
extern BOOL CALLBACK DlgProcOptions(HWND hwndDlg, UINT msg, WPARAM wParam, LPARAM lParam);
extern int OptInit(WPARAM wParam, LPARAM lParam);
extern bool ShowSplash(bool bpreview);
extern void ReadIniConfig();

HANDLE hShowSplashService, hTestService;
// Service functions declarated in service.cpp
extern int ShowSplashService(WPARAM wparam,LPARAM lparam);
#ifdef _DEBUG
extern int TestService(WPARAM wParam,LPARAM lParam);
#endif

extern BOOL (WINAPI *MyUpdateLayeredWindow)
   (HWND hwnd, HDC hdcDST, POINT *pptDst, SIZE *psize, HDC hdcSrc, POINT *pptSrc,
    COLORREF crKey, BLENDFUNCTION *pblend, DWORD dwFlags);
extern HWND hwndSplash;

PLUGININFOEX pluginInfo={
   sizeof(PLUGININFOEX),
   #ifndef _DEBUG
     "Splash Screen",
   #else
     "Splash Screen (Debug)",
   #endif
   __VERSION_DWORD,
   "Shows a splash at Miranda startup",
   "nullbie, Thief",
   "thief@miranda.im",
   "2004-2007 Victor Pavlychko, 2005-2010 Alexander Turyak ["BuildDate"]",
   "http://addons.miranda-im.org/details.php?id=2624",
   0,      //not transient
   0,      //doesn't replace anything built-in
   {0xc64cc8e0, 0xcf03, 0x474a, {0x8b, 0x11, 0x8b, 0xd4, 0x56, 0x5c, 0xcf, 0x04}} /* C64CC8E0-CF03-474A-8B11-8BD4565CC */
};

PLUGININFO oldpluginInfo={
	sizeof(PLUGININFO),
	pluginInfo.shortName, 
 	pluginInfo.version, 
 	pluginInfo.description, 
 	pluginInfo.author, 
 	pluginInfo.authorEmail, 
 	pluginInfo.copyright, 
 	pluginInfo.homepage, 
 	pluginInfo.flags, 
 	pluginInfo.replacesDefaultModule
};

/* 91CB1E8D-C33C-43C0-BDD8-6725B070B3E0 */
#define MIID_SPLASHSCREEN {0x91cb1e8d, 0xc33c, 0x43c0, {0xbd, 0xd8, 0x67, 0x25, 0xb0, 0x70, 0xb3, 0xe0}}

extern "C" __declspec(dllexport) const MUUID* MirandaPluginInterfaces(void)
{
	static const MUUID interfaces[] = {MIID_SPLASHSCREEN, MIID_LAST};
	return interfaces;
}

HANDLE hSplashThread, hModulesLoaded, hPlugDisableHook, hOptInit, hSystemOKToExit;
LRESULT CALLBACK SplashWindowProc(HWND, UINT, WPARAM, LPARAM);
int ModulesLoaded(WPARAM wParam,LPARAM lParam);
int PlugDisableHook(WPARAM wParam,LPARAM lParam);
int onSystemOKToExit(WPARAM wParam,LPARAM lParam);

extern "C" BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
   hInst = hinstDLL;
   return TRUE;
}

void SplashMain()
{
if (bstartup) 
{
    DWORD unused;
    DWORD verInfoSize;
    UINT blockSize;

  // Retrive path to exe of current running Miranda is located
  GetModuleFileName(GetModuleHandle(NULL), szMirDir, sizeof(szMirDir));

  verInfoSize = GetFileVersionInfoSizeA(szMirDir,&unused);
  pVerInfo = /*mir_*/malloc(verInfoSize);
  GetFileVersionInfoA(szMirDir,0,verInfoSize,pVerInfo);
  VerQueryValueA(pVerInfo,"\\StringFileInfo\\000004b0\\ProductVersion",(PVOID*)&mirandaVerString,&blockSize);
  
  // Remove 'miranda32.exe' from string
  char *pos;
  pos = strrchr(szMirDir, '\\');
  if(pos != NULL) *pos = 0;
  lstrcat(szMirDir,"\\");

  // Get the name string of plugin's dll name whatever it named
  static char* sztmpstr;
  GetModuleFileName(hInst, szDllName, sizeof(szDllName));
  sztmpstr = _strrev(szDllName);
  pos = strchr(sztmpstr, '\\');
  if(pos != NULL) *pos = 0;
  strcpy(szDllName, _strrev(sztmpstr));

  static char szPath[MAX_PATH];

  lstrcat(szPath,szMirDir);
  lstrcat(szPath,"plugins\\splash.ini");
  lstrcat(szhAdvaimgPath,szMirDir);
  lstrcat(szhAdvaimgPath,"plugins\\advaimg.dll");

  #ifdef _DEBUG
  lstrcat(szLogFile,szMirDir);
  lstrcat(szLogFile,PlugName);
  lstrcat(szLogFile,".log");
  #endif

  #ifdef _DEBUG
    initLog();
    logTimeStamp();
  #endif

  #ifdef _DEBUG
	logMessage("Miranda version", mirandaVerString);
  #endif

  static char szMirandaBootIni[MAX_PATH];
  lstrcat(szMirandaBootIni,szMirDir);
  lstrcat(szMirandaBootIni,"mirandaboot.ini");
  GetPrivateProfileString("Splash","Ini","",inBuf,sizeof(inBuf),szMirandaBootIni);
  if (strlen(inBuf))
  {
    char szExpandedIniPath[MAX_PATH];
    ExpandEnvironmentStringsA(inBuf, szExpandedIniPath,sizeof(szExpandedIniPath));
	lstrcat(szIniFile,szExpandedIniPath);
  }
  else
  {
	FILE *fp;
	fp = fopen(szPath, "r");
	if (!fp)
	{
		#ifdef _DEBUG
		logMessage("error! couldn't open", szPath);
		#endif

		lstrcat(szIniFile,szMirDir);
		lstrcat(szIniFile,"mirandaboot.ini");
	}
	else
	{
		lstrcat(szIniFile,szPath);
		fclose(fp);
    }
  }

  ReadIniConfig();

  #ifdef _DEBUG
	logMessage("Dll Name", szDllName);
    logMessage("Ini path",szIniFile);
	logMessage("Advaimg path", szhAdvaimgPath);
  #endif
}

if (bstartup & (options.active == 1)) {

   if (options.runonce)
   {
      WritePrivateProfileString("Splash","Active","0",szIniFile);
      WritePrivateProfileString("Splash","DisableAfterStartup","0",szIniFile);
   }

   if (hUserDll == NULL)
   {
      hUserDll = LoadLibrary("user32.dll");
      if (hUserDll)
      {
         MyUpdateLayeredWindow = (BOOL (WINAPI *)(HWND, HDC, POINT *, SIZE *, HDC, POINT *, COLORREF, BLENDFUNCTION *, DWORD))GetProcAddress(hUserDll, "UpdateLayeredWindow");
      }
   }

   if (hAdvaimg == NULL)
   {
      hAdvaimg = LoadLibrary(szhAdvaimgPath);
      if (hAdvaimg == NULL)
      {         
         png2dibavail = false;
		 bstartup = false;
      }
      if (hAdvaimg)
      {
          png2dibConvertor = (pfnConvertPng2dib) GetProcAddress(hAdvaimg, "mempng2dib");
          if (png2dibConvertor == NULL)
          {
               FreeLibrary(hAdvaimg); hAdvaimg = NULL;
               MessageBoxA(NULL,
               "Your advaimg.dll is either obsolete or damaged. Get latest from Miranda alpha builds.",
               "Error",
               MB_OK | MB_ICONSTOP);
          }
          #ifdef _DEBUG
             if (png2dibConvertor) logMessage("Loading advaimg","done");
          #endif
      }
   }

   //for 9x "alfa" testing
   //MyUpdateLayeredWindow = 0;

   GetPrivateProfileString("Splash","VersionPrefix","",inBuf,sizeof(inBuf),szIniFile);
   strcpy(szPrefix,inBuf);

   GetPrivateProfileString("Splash","Path","splash\\splash.png",inBuf,sizeof(inBuf),szIniFile);

   char szExpandedSplashFile[MAX_PATH];
   ExpandEnvironmentStringsA(inBuf, szExpandedSplashFile,sizeof(szExpandedSplashFile));
   lstrcpy(inBuf, szExpandedSplashFile);

   char *pos3 = 0;
   pos3 = strrchr(inBuf, ':');
   if (pos3 == NULL)
   {
      lstrcpy(szSplashFile, szMirDir);
   }
   
   lstrcat(szSplashFile, inBuf);

   GetPrivateProfileString("Splash","Sound","sounds\\startup.wav",inBuf,sizeof(inBuf),szIniFile);

   char szExpandedSoundFile[MAX_PATH];
   ExpandEnvironmentStringsA(inBuf, szExpandedSoundFile,sizeof(szExpandedSoundFile));
   lstrcpy(inBuf, szExpandedSoundFile);
   
   char *pos2;
   pos2 = strchr(inBuf, ':');
   if (pos2 == NULL)
   {
      lstrcat(szSoundFile, szMirDir);
   }

   lstrcat(szSoundFile, inBuf);

   #ifdef _DEBUG
		logMessage("SoundFilePath",szSoundFile);
   #endif

   char szOldPath[MAX_PATH] = {0};

   if(options.random) // randomly select a splash file
   { 
     int filescount = 0;
     char szSplashDir[MAX_PATH] = {0}, szSearch[MAX_PATH] = {0};
      char* p = 0;   
      char files [255][50]; //TODO: make memory allocation dynamic

      lstrcpy(szSplashDir, szSplashFile);
      lstrcpy(szOldPath, szSplashFile);
      // find the last \ and null it out, this leaves no trailing slash
      p = strrchr(szSplashDir, '\\');
      if (p) *p = 0;
      // create the search filter
      mir_snprintf(szSearch,sizeof(szSearch),"%s\\*.*", szSplashDir);
         // FFFN will return filenames
         HANDLE hFind = INVALID_HANDLE_VALUE;
         WIN32_FIND_DATAA ffd;      
         hFind = FindFirstFileA(szSearch, &ffd);
         if ( hFind != INVALID_HANDLE_VALUE )
		 {
            do
			{
               if (!(ffd.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY)) 
               { 
                  #ifdef _DEBUG
                     logMessage("Found file",ffd.cFileName);
                  #endif
                     //files = new char[strlen(ffd.cFileName)];
                     //files[filescount] = new char[strlen(ffd.cFileName)];
					 char ext[5];
					 memcpy(ext,ffd.cFileName+(strlen(ffd.cFileName)-4),5);

					 #ifdef _DEBUG
					 logMessage("Extention",ext);
					 #endif

					 if (lstrcmpi(ext,".png") & lstrcmpi(ext,".bmp"))
						continue;
					 
					 #ifdef _DEBUG
					 logMessage("File has valid ext",ext);
					 #endif
                     strcpy(files[filescount++],ffd.cFileName);
               } //if
            } while (FindNextFileA(hFind, &ffd));

            srand((unsigned) time(NULL));
			int r = 0;
			if (filescount) r = (rand() % filescount) + 1;

            ZeroMemory(&szSplashFile,sizeof(szSplashFile));
            lstrcpy(szSplashFile, szSplashDir);
            lstrcat(szSplashFile,"\\");
            lstrcat(szSplashFile,files[r-1]);

            #ifdef _DEBUG
               logMessage("final file",szSplashFile);
            #endif
            FindClose(hFind);
         } //if   
   }

   // Call splash display routine
   ShowSplash(false);

   if (options.random)
   {
      ZeroMemory(&szSplashFile,sizeof(szSplashFile));
      lstrcpy(szSplashFile, szOldPath);
   }

   }
   bstartup = false;
}

extern "C" __declspec(dllexport) PLUGININFOEX* MirandaPluginInfoEx(DWORD mirandaVersion)
{
   SplashMain();
   return &pluginInfo;
}

extern "C" __declspec(dllexport) PLUGININFO* MirandaPluginInfo(DWORD mirandaVersion)
{
   SplashMain();
   return &oldpluginInfo;
}

extern "C" int __declspec(dllexport) Load(PLUGINLINK *link)
{
   pluginLink = link;

   hModulesLoaded = HookEvent(ME_SYSTEM_MODULESLOADED, ModulesLoaded);
   hSystemOKToExit = HookEvent(ME_SYSTEM_OKTOEXIT,onSystemOKToExit);

   return 0;
}

extern "C" int __declspec(dllexport) Unload(void)
{
   free(pVerInfo);

   if (hSplashThread) CloseHandle(hSplashThread);

   UnregisterClass(SPLASH_CLASS, hInst);

   // Freeing loaded libraries
   if (hUserDll) FreeLibrary(hUserDll);
   if (hAdvaimg) FreeLibrary(hAdvaimg);
      
   #ifdef _DEBUG
      logMessage("Unload","Job done");
   #endif

   return 0;
}

int onSystemOKToExit(WPARAM wParam,LPARAM lParam)
{
   // Hooked events need to be unhooked
   UnhookEvent(hModulesLoaded); 
   UnhookEvent(hSystemOKToExit);
   UnhookEvent(hPlugDisableHook);
   UnhookEvent(hOptInit);
   
   DestroyServiceFunction(hShowSplashService);
   #ifdef _DEBUG
     DestroyServiceFunction(hTestService);
   #endif

   return 0;
}

int ModulesLoaded(WPARAM wParam, LPARAM lParam)
{
	bmodulesloaded = true; // all modules are loaded now, let other parts know about this fact

	if (hwndSplash)
	{
		if (PostMessage(hwndSplash, WM_LOADED, 0, 0))
		{
			#ifdef _DEBUG
			logMessage("Posted WM_LOADED message","done");
			#endif
		}
	}
   
    // Options initialize hook
    hOptInit = HookEvent(ME_OPT_INITIALISE, OptInit);

    hPlugDisableHook = HookEvent(ME_DB_CONTACT_SETTINGCHANGED, PlugDisableHook);

    // Service to call splash
    hShowSplashService = CreateServiceFunction(MS_SHOWSPLASH, ShowSplashService);

    #ifdef _DEBUG
      hTestService = CreateServiceFunction("Splash/Test",TestService);
      CLISTMENUITEM mi;
      ZeroMemory(&mi,sizeof(mi));
      mi.cbSize = sizeof(mi);
      mi.flags = 0;
      mi.hIcon = LoadSkinnedIcon(SKINICON_OTHER_MIRANDA);
      mi.hotKey = 0;
      mi.position = -0x7FFFFFFF;
      mi.pszName = "Call Splash Service";
      mi.pszService = "Splash/Test";
  
      CallService(MS_CLIST_ADDMAINMENUITEM,0,(LPARAM)&mi);
    #endif

   if (ServiceExists(MS_UPDATE_REGISTER))
   {
      // register with updater
      Update update = {0};
      char szVersion[16];

      update.cbSize = sizeof(Update);

      update.szComponentName = pluginInfo.shortName;
      update.pbVersion = (BYTE *)CreateVersionString(pluginInfo.version, szVersion);
      update.cpbVersion = strlen((char *)update.pbVersion);

      update.szUpdateURL = UPDATER_AUTOREGISTER;
      
      // these are the three lines that matter - the archive, the page containing the version string, and the text (or data) 
      // before the version that we use to locate it on the page
      // (note that if the update URL and the version URL point to standard file listing entries, the backend xml
      // data will be used to check for updates rather than the actual web page - this is not true for beta urls)
      update.szBetaUpdateURL = "http://thief.miranda.im/advsplashscreen.zip";
      update.szBetaVersionURL = "http://thief.miranda.im/updater/splash_version.txt";
      update.szBetaChangelogURL = "http://thief.miranda.im";
      update.pbBetaVersionPrefix = (BYTE *)"Splash Screen ";
      
      update.cpbBetaVersionPrefix = strlen((char *)update.pbBetaVersionPrefix);

      CallService(MS_UPDATE_REGISTER, 0, (WPARAM)&update);
   }
   
   #ifdef _DEBUG
   logMessage("Loading modules","done");
   #endif

   return 0;
}

int PlugDisableHook(WPARAM wParam, LPARAM lParam)
{
   char buf [128];
   DBCONTACTWRITESETTING *cws = (DBCONTACTWRITESETTING*)lParam;
   if(options.inheritGS)
     if (!lstrcmp(cws->szModule,"Skin") & !lstrcmp(cws->szSetting,"UseSound"))
	 {
         sprintf(buf,"%d",cws->value.bVal);
         WritePrivateProfileString("Splash","PlaySound",buf,szIniFile);
         #ifdef _DEBUG
         cws->value.bVal ? _DebugPopup(NULL, "Sounds enabled.", "") : _DebugPopup(NULL, "Sounds disabled.", "");
         logMessage("Module",cws->szModule);
         logMessage("Setting",cws->szSetting);
         logMessage("Value",buf);
         #endif
     }
   if (!lstrcmp(cws->szModule,"PluginDisable") & (!lstrcmp(cws->szSetting,szDllName)))
   {
      sprintf(buf,"%d",!cws->value.bVal);
      WritePrivateProfileString("Splash","Active",buf,szIniFile);

      #ifdef _DEBUG
      cws->value.bVal ? _DebugPopup(NULL, "Disabled.", "") : _DebugPopup(NULL, "Enabled.", "");
      logMessage("PlugDisableHook","Triggered");
      logMessage("Module",cws->szModule);
      logMessage("Setting",cws->szSetting);
      logMessage("Value",buf);
      #endif
   }

   return 0;
}