src/TortoiseShell/ShellExt.cpp

   1 // TortoiseSVN - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2003-2008 - TortoiseSVN
   4
   5 // This program is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License
   7 // as published by the Free Software Foundation; either version 2
   8 // of the License, or (at your option) any later version.
   9
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software Foundation,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 #include "stdafx.h"
  20
  21 #pragma warning (disable : 4786)
  22
  23 // Initialize GUIDs (should be done only and at-least once per DLL/EXE)
  24 #include <initguid.h>
  25 #include "Guids.h"
  26 #include "git.h"
  27 #include "ShellExt.h"
  28 //#include "..\version.h"
  29 //#include "libintl.h"
  30 #undef swprintf
  31 #include "SVNPropertyPage.h"
  32
  33 std::set<CShellExt *> g_exts;
  34
  35 // *********************** CShellExt *************************
  36 CShellExt::CShellExt(FileState state)
  37 {
  38         OSVERSIONINFOEX inf;
  39         SecureZeroMemory(&inf, sizeof(OSVERSIONINFOEX));
  40         inf.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
  41         GetVersionEx((OSVERSIONINFO *)&inf);
  42         fullver = MAKEWORD(inf.dwMinorVersion, inf.dwMajorVersion);
  43
  44     m_State = state;
  45
  46     m_cRef = 0L;
  47     g_cRefThisDll++;
  48
  49         g_exts.insert(this);
  50
  51     INITCOMMONCONTROLSEX used = {
  52         sizeof(INITCOMMONCONTROLSEX),
  53                         ICC_LISTVIEW_CLASSES | ICC_WIN95_CLASSES | ICC_BAR_CLASSES | ICC_USEREX_CLASSES
  54     };
  55     InitCommonControlsEx(&used);
  56         LoadLangDll();
  57
  58         if (fullver >= 0x0600)
  59         {
  60                 HMODULE hUxTheme = ::GetModuleHandle (_T("UXTHEME.DLL"));
  61
  62                 pfnGetBufferedPaintBits = (FN_GetBufferedPaintBits)::GetProcAddress(hUxTheme, "GetBufferedPaintBits");
  63                 pfnBeginBufferedPaint = (FN_BeginBufferedPaint)::GetProcAddress(hUxTheme, "BeginBufferedPaint");
  64                 pfnEndBufferedPaint = (FN_EndBufferedPaint)::GetProcAddress(hUxTheme, "EndBufferedPaint");
  65         }
  66 }
  67
  68 CShellExt::~CShellExt()
  69 {
  70         std::map<UINT, HBITMAP>::iterator it;
  71         for (it = bitmaps.begin(); it != bitmaps.end(); ++it)
  72         {
  73                 ::DeleteObject(it->second);
  74         }
  75         bitmaps.clear();
  76         g_cRefThisDll--;
  77         g_exts.erase(this);
  78 }
  79
  80 void LoadLangDll()
  81 {
  82         if ((g_langid != g_ShellCache.GetLangID())&&((g_langTimeout == 0)||(g_langTimeout < GetTickCount())))
  83         {
  84                 g_langid = g_ShellCache.GetLangID();
  85                 DWORD langId = g_langid;
  86                 TCHAR langDll[MAX_PATH*4];
  87                 HINSTANCE hInst = NULL;
  88                 TCHAR langdir[MAX_PATH] = {0};
  89                 char langdirA[MAX_PATH] = {0};
  90                 if (GetModuleFileName(g_hmodThisDll, langdir, MAX_PATH)==0)
  91                         return;
  92                 if (GetModuleFileNameA(g_hmodThisDll, langdirA, MAX_PATH)==0)
  93                         return;
  94                 TCHAR * dirpoint = _tcsrchr(langdir, '\\');
  95                 char * dirpointA = strrchr(langdirA, '\\');
  96                 if (dirpoint)
  97                         *dirpoint = 0;
  98                 if (dirpointA)
  99                         *dirpointA = 0;
 100                 dirpoint = _tcsrchr(langdir, '\\');
 101                 dirpointA = strrchr(langdirA, '\\');
 102                 if (dirpoint)
 103                         *dirpoint = 0;
 104                 if (dirpointA)
 105                         *dirpointA = 0;
 106                 strcat_s(langdirA, MAX_PATH, "\\Languages");
 107 //              bindtextdomain ("subversion", langdirA);
 108
 109                 do
 110                 {
 111                         _stprintf_s(langDll, MAX_PATH*4, _T("%s\\Languages\\TortoiseProc%d.dll"), langdir, langId);
 112                         BOOL versionmatch = TRUE;
 113
 114                         struct TRANSARRAY
 115                         {
 116                                 WORD wLanguageID;
 117                                 WORD wCharacterSet;
 118                         };
 119
 120                         DWORD dwReserved,dwBufferSize;
 121                         dwBufferSize = GetFileVersionInfoSize((LPTSTR)langDll,&dwReserved);
 122
 123                         if (dwBufferSize > 0)
 124                         {
 125                                 LPVOID pBuffer = (void*) malloc(dwBufferSize);
 126
 127                                 if (pBuffer != (void*) NULL)
 128                                 {
 129                                         UINT        nInfoSize = 0,
 130                                                 nFixedLength = 0;
 131                                         LPSTR       lpVersion = NULL;
 132                                         VOID*       lpFixedPointer;
 133                                         TRANSARRAY* lpTransArray;
 134                                         TCHAR       strLangProduktVersion[MAX_PATH];
 135
 136                                         if (GetFileVersionInfo((LPTSTR)langDll,
 137                                                 dwReserved,
 138                                                 dwBufferSize,
 139                                                 pBuffer))
 140                                         {
 141                                                 // Query the current language
 142                                                 if (VerQueryValue(      pBuffer,
 143                                                         _T("\\VarFileInfo\\Translation"),
 144                                                         &lpFixedPointer,
 145                                                         &nFixedLength))
 146                                                 {
 147                                                         lpTransArray = (TRANSARRAY*) lpFixedPointer;
 148
 149                                                         _stprintf_s(strLangProduktVersion, MAX_PATH, _T("\\StringFileInfo\\%04x%04x\\ProductVersion"),
 150                                                                 lpTransArray[0].wLanguageID, lpTransArray[0].wCharacterSet);
 151
 152                                                         if (VerQueryValue(pBuffer,
 153                                                                 (LPTSTR)strLangProduktVersion,
 154                                                                 (LPVOID *)&lpVersion,
 155                                                                 &nInfoSize))
 156                                                         {
 157 //                                                              versionmatch = (_tcscmp((LPCTSTR)lpVersion, _T(STRPRODUCTVER)) == 0);
 158                                                         }
 159
 160                                                 }
 161                                         }
 162                                         free(pBuffer);
 163                                 } // if (pBuffer != (void*) NULL)
 164                         } // if (dwBufferSize > 0)
 165                         else
 166                                 versionmatch = FALSE;
 167
 168                         if (versionmatch)
 169                                 hInst = LoadLibrary(langDll);
 170                         if (hInst != NULL)
 171                         {
 172                                 if (g_hResInst != g_hmodThisDll)
 173                                         FreeLibrary(g_hResInst);
 174                                 g_hResInst = hInst;
 175                         }
 176                         else
 177                         {
 178                                 DWORD lid = SUBLANGID(langId);
 179                                 lid--;
 180                                 if (lid > 0)
 181                                 {
 182                                         langId = MAKELANGID(PRIMARYLANGID(langId), lid);
 183                                 }
 184                                 else
 185                                         langId = 0;
 186                         }
 187                 } while ((hInst == NULL) && (langId != 0));
 188                 if (hInst == NULL)
 189                 {
 190                         // either the dll for the selected language is not present, or
 191                         // it is the wrong version.
 192                         // fall back to English and set a timeout so we don't retry
 193                         // to load the language dll too often
 194                         if (g_hResInst != g_hmodThisDll)
 195                                 FreeLibrary(g_hResInst);
 196                         g_hResInst = g_hmodThisDll;
 197                         g_langid = 1033;
 198                         // set a timeout of 10 seconds
 199                         if (g_ShellCache.GetLangID() != 1033)
 200                                 g_langTimeout = GetTickCount() + 10000;
 201                 }
 202                 else
 203                         g_langTimeout = 0;
 204         } // if (g_langid != g_ShellCache.GetLangID())
 205 }
 206
 207 STDMETHODIMP CShellExt::QueryInterface(REFIID riid, LPVOID FAR *ppv)
 208 {
 209     *ppv = NULL;
 210
 211     if (IsEqualIID(riid, IID_IShellExtInit) || IsEqualIID(riid, IID_IUnknown))
 212     {
 213         *ppv = (LPSHELLEXTINIT)this;
 214     }
 215     else if (IsEqualIID(riid, IID_IContextMenu))
 216     {
 217         *ppv = (LPCONTEXTMENU)this;
 218     }
 219     else if (IsEqualIID(riid, IID_IContextMenu2))
 220     {
 221         *ppv = (LPCONTEXTMENU2)this;
 222     }
 223     else if (IsEqualIID(riid, IID_IContextMenu3))
 224     {
 225         *ppv = (LPCONTEXTMENU3)this;
 226     }
 227     else if (IsEqualIID(riid, IID_IShellIconOverlayIdentifier))
 228     {
 229         *ppv = (IShellIconOverlayIdentifier*)this;
 230     }
 231     else if (IsEqualIID(riid, IID_IShellPropSheetExt))
 232     {
 233         *ppv = (LPSHELLPROPSHEETEXT)this;
 234     }
 235         else if (IsEqualIID(riid, IID_IColumnProvider))
 236         {
 237                 *ppv = (IColumnProvider *)this;
 238         }
 239         else if (IsEqualIID(riid, IID_IShellCopyHook))
 240         {
 241                 *ppv = (ICopyHook *)this;
 242         }
 243     if (*ppv)
 244     {
 245         AddRef();
 246
 247         return NOERROR;
 248     }
 249
 250     return E_NOINTERFACE;
 251 }
 252
 253 STDMETHODIMP_(ULONG) CShellExt::AddRef()
 254 {
 255     return ++m_cRef;
 256 }
 257
 258 STDMETHODIMP_(ULONG) CShellExt::Release()
 259 {
 260     if (--m_cRef)
 261         return m_cRef;
 262
 263     delete this;
 264
 265     return 0L;
 266 }
 267
 268 // IPersistFile members
 269 STDMETHODIMP CShellExt::GetClassID(CLSID *pclsid)
 270 {
 271     *pclsid = CLSID_Tortoisegit_UNCONTROLLED;
 272     return S_OK;
 273 }
 274
 275 STDMETHODIMP CShellExt::Load(LPCOLESTR /*pszFileName*/, DWORD /*dwMode*/)
 276 {
 277     return S_OK;
 278 }
 279
 280 // ICopyHook member
 281 UINT __stdcall CShellExt::CopyCallback(HWND /*hWnd*/, UINT wFunc, UINT /*wFlags*/, LPCTSTR pszSrcFile, DWORD /*dwSrcAttribs*/, LPCTSTR /*pszDestFile*/, DWORD /*dwDestAttribs*/)
 282 {
 283         if (wFunc == FO_COPY)
 284                 return IDYES;   // copying is not a problem for us
 285
 286         m_remoteCacheLink.ReleaseLockForPath(CTGitPath(pszSrcFile));
 287         // we could now wait a little bit to give the cache time to release the handles.
 288         // but the explorer/shell already retries any action for about two seconds
 289         // if it first fails. So if the cache hasn't released the handle yet, the explorer
 290         // will retry anyway, so we just leave here immediately.
 291         return IDYES;
 292 }