src/TortoiseMerge/TortoiseMerge.cpp

   1 // TortoiseGitMerge - a Diff/Patch program
   2
   3 // Copyright (C) 2013 - TortoiseGit
   4 // Copyright (C) 2006-2012 - TortoiseSVN
   5
   6 // This program is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU General Public License
   8 // as published by the Free Software Foundation; either version 2
   9 // of the License, or (at your option) any later version.
  10
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License
  17 // along with this program; if not, write to the Free Software Foundation,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 #include "stdafx.h"
  21 #include <dlgs.h>
  22 #include "TortoiseMerge.h"
  23 #include "MainFrm.h"
  24 #include "AboutDlg.h"
  25 #include "CmdLineParser.h"
  26 #include "version.h"
  27 #include "AppUtils.h"
  28 #include "PathUtils.h"
  29 #include "BrowseFolder.h"
  30 #include "DirFileEnum.h"
  31 #include "SelectFileFilter.h"
  32 #include "FileDlgEventHandler.h"
  33 #include "TempFile.h"
  34 #include "TaskbarUUID.h"
  35
  36 #ifdef _DEBUG
  37 #define new DEBUG_NEW
  38 #endif
  39
  40 #pragma comment(linker, "\"/manifestdependency:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"")
  41
  42 BEGIN_MESSAGE_MAP(CTortoiseMergeApp, CWinAppEx)
  43         ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
  44 END_MESSAGE_MAP()
  45
  46 class PatchOpenDlgEventHandler : public CFileDlgEventHandler
  47 {
  48 public:
  49         PatchOpenDlgEventHandler() {}
  50         ~PatchOpenDlgEventHandler() {}
  51
  52         virtual STDMETHODIMP OnButtonClicked(IFileDialogCustomize* pfdc, DWORD dwIDCtl)
  53         {
  54                 if (dwIDCtl == 101)
  55                 {
  56                         CComQIPtr<IFileOpenDialog> pDlg = pfdc;
  57                         if (pDlg)
  58                         {
  59                                 pDlg->Close(S_OK);
  60                         }
  61                 }
  62                 return S_OK;
  63         }
  64 };
  65
  66
  67 CTortoiseMergeApp::CTortoiseMergeApp()
  68         : m_nAppLook(0)
  69 {
  70         EnableHtmlHelp();
  71         m_bHiColorIcons = TRUE;
  72 }
  73
  74 // The one and only CTortoiseMergeApp object
  75 CTortoiseMergeApp theApp;
  76 CString sOrigCWD;
  77 CCrashReportTGit g_crasher(L"TortoiseGitMerge " _T(APP_X64_STRING), TGIT_VERMAJOR, TGIT_VERMINOR, TGIT_VERMICRO, TGIT_VERBUILD);
  78
  79 CString g_sGroupingUUID;
  80
  81 // CTortoiseMergeApp initialization
  82 BOOL CTortoiseMergeApp::InitInstance()
  83 {
  84         SetDllDirectory(L"");
  85         SetTaskIDPerUUID();
  86         CCrashReport::Instance().AddUserInfoToReport(L"CommandLine", GetCommandLine());
  87
  88         {
  89                 DWORD len = GetCurrentDirectory(0, NULL);
  90                 if (len)
  91                 {
  92                         std::unique_ptr<TCHAR[]> originalCurrentDirectory(new TCHAR[len]);
  93                         if (GetCurrentDirectory(len, originalCurrentDirectory.get()))
  94                         {
  95                                 sOrigCWD = originalCurrentDirectory.get();
  96                                 sOrigCWD = CPathUtils::GetLongPathname(sOrigCWD);
  97                         }
  98                 }
  99         }
 100
 101         //set the resource dll for the required language
 102         CRegDWORD loc = CRegDWORD(_T("Software\\TortoiseGit\\LanguageID"), 1033);
 103         long langId = loc;
 104         CString langDll;
 105         HINSTANCE hInst = NULL;
 106         do
 107         {
 108                 langDll.Format(_T("%sLanguages\\TortoiseMerge%d.dll"), (LPCTSTR)CPathUtils::GetAppParentDirectory(), langId);
 109
 110                 hInst = LoadLibrary(langDll);
 111                 CString sVer = _T(STRPRODUCTVER);
 112                 CString sFileVer = CPathUtils::GetVersionFromFile(langDll);
 113                 if (sFileVer.Compare(sVer)!=0)
 114                 {
 115                         FreeLibrary(hInst);
 116                         hInst = NULL;
 117                 }
 118                 if (hInst != NULL)
 119                         AfxSetResourceHandle(hInst);
 120                 else
 121                 {
 122                         DWORD lid = SUBLANGID(langId);
 123                         lid--;
 124                         if (lid > 0)
 125                         {
 126                                 langId = MAKELANGID(PRIMARYLANGID(langId), lid);
 127                         }
 128                         else
 129                                 langId = 0;
 130                 }
 131         } while ((hInst == NULL) && (langId != 0));
 132         TCHAR buf[6];
 133         _tcscpy_s(buf, _T("en"));
 134         langId = loc;
 135         CString sHelppath = CPathUtils::GetAppDirectory() + _T("TortoiseMerge_en.chm");
 136         free((void*)m_pszHelpFilePath);
 137         m_pszHelpFilePath=_tcsdup(sHelppath);
 138         sHelppath = CPathUtils::GetAppParentDirectory() + _T("Languages\\TortoiseMerge_en.chm");
 139         do
 140         {
 141                 GetLocaleInfo(MAKELCID(langId, SORT_DEFAULT), LOCALE_SISO639LANGNAME, buf, _countof(buf));
 142                 CString sLang = _T("_");
 143                 sLang += buf;
 144                 sHelppath.Replace(_T("_en"), sLang);
 145                 if (PathFileExists(sHelppath))
 146                 {
 147                         free((void*)m_pszHelpFilePath);
 148                         m_pszHelpFilePath=_tcsdup(sHelppath);
 149                         break;
 150                 }
 151                 sHelppath.Replace(sLang, _T("_en"));
 152                 GetLocaleInfo(MAKELCID(langId, SORT_DEFAULT), LOCALE_SISO3166CTRYNAME, buf, _countof(buf));
 153                 sLang += _T("_");
 154                 sLang += buf;
 155                 sHelppath.Replace(_T("_en"), sLang);
 156                 if (PathFileExists(sHelppath))
 157                 {
 158                         free((void*)m_pszHelpFilePath);
 159                         m_pszHelpFilePath=_tcsdup(sHelppath);
 160                         break;
 161                 }
 162                 sHelppath.Replace(sLang, _T("_en"));
 163
 164                 DWORD lid = SUBLANGID(langId);
 165                 lid--;
 166                 if (lid > 0)
 167                 {
 168                         langId = MAKELANGID(PRIMARYLANGID(langId), lid);
 169                 }
 170                 else
 171                         langId = 0;
 172         } while (langId);
 173         setlocale(LC_ALL, "");
 174         // We need to explicitly set the thread locale to the system default one to avoid possible problems with saving files in its original codepage
 175         // The problems occures when the language of OS differs from the regional settings
 176         // See the details here: http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=100887
 177         SetThreadLocale(LOCALE_SYSTEM_DEFAULT);
 178
 179         // InitCommonControls() is required on Windows XP if an application
 180         // manifest specifies use of ComCtl32.dll version 6 or later to enable
 181         // visual styles.  Otherwise, any window creation will fail.
 182         InitCommonControls();
 183
 184         CMFCVisualManager::SetDefaultManager(RUNTIME_CLASS(CMFCVisualManagerWindows));
 185         CMFCButton::EnableWindowsTheming();
 186         EnableTaskbarInteraction(FALSE);
 187
 188         // Initialize all Managers for usage. They are automatically constructed
 189         // if not yet present
 190         InitContextMenuManager();
 191         InitKeyboardManager();
 192         InitTooltipManager ();
 193         CMFCToolTipInfo params;
 194         params.m_bVislManagerTheme = TRUE;
 195
 196         GetTooltipManager ()->SetTooltipParams (
 197                 AFX_TOOLTIP_TYPE_ALL,
 198                 RUNTIME_CLASS (CMFCToolTipCtrl),
 199                 &params);
 200
 201         CCmdLineParser parser = CCmdLineParser(this->m_lpCmdLine);
 202
 203         g_sGroupingUUID = parser.GetVal(L"groupuuid");
 204
 205         if (parser.HasKey(_T("?")) || parser.HasKey(_T("help")))
 206         {
 207                 CString sHelpText;
 208                 sHelpText.LoadString(IDS_COMMANDLINEHELP);
 209                 MessageBox(NULL, sHelpText, _T("TortoiseGitMerge"), MB_ICONINFORMATION);
 210                 return FALSE;
 211         }
 212
 213         // Initialize OLE libraries
 214         if (!AfxOleInit())
 215         {
 216                 AfxMessageBox(IDP_OLE_INIT_FAILED);
 217                 return FALSE;
 218         }
 219         AfxEnableControlContainer();
 220         // Standard initialization
 221         // If you are not using these features and wish to reduce the size
 222         // of your final executable, you should remove from the following
 223         // the specific initialization routines you do not need
 224         // Change the registry key under which our settings are stored
 225         SetRegistryKey(_T("TortoiseGitMerge"));
 226
 227         if (CRegDWORD(_T("Software\\TortoiseGitMerge\\Debug"), FALSE)==TRUE)
 228                 AfxMessageBox(AfxGetApp()->m_lpCmdLine, MB_OK | MB_ICONINFORMATION);
 229
 230         // To create the main window, this code creates a new frame window
 231         // object and then sets it as the application's main window object
 232         CMainFrame* pFrame = new CMainFrame;
 233         if (pFrame == NULL)
 234                 return FALSE;
 235         m_pMainWnd = pFrame;
 236
 237         // create and load the frame with its resources
 238         if (!pFrame->LoadFrame(IDR_MAINFRAME, WS_OVERLAPPEDWINDOW | FWS_ADDTOTITLE, NULL, NULL))
 239                 return FALSE;
 240
 241         // Fill in the command line options
 242         pFrame->m_Data.m_baseFile.SetFileName(parser.GetVal(_T("base")));
 243         pFrame->m_Data.m_baseFile.SetDescriptiveName(parser.GetVal(_T("basename")));
 244         pFrame->m_Data.m_theirFile.SetFileName(parser.GetVal(_T("theirs")));
 245         pFrame->m_Data.m_theirFile.SetDescriptiveName(parser.GetVal(_T("theirsname")));
 246         pFrame->m_Data.m_yourFile.SetFileName(parser.GetVal(_T("mine")));
 247         pFrame->m_Data.m_yourFile.SetDescriptiveName(parser.GetVal(_T("minename")));
 248         pFrame->m_Data.m_mergedFile.SetFileName(parser.GetVal(_T("merged")));
 249         pFrame->m_Data.m_mergedFile.SetDescriptiveName(parser.GetVal(_T("mergedname")));
 250         pFrame->m_Data.m_sPatchPath = parser.HasVal(_T("patchpath")) ? parser.GetVal(_T("patchpath")) : _T("");
 251         pFrame->m_Data.m_sPatchPath.Replace('/', '\\');
 252         if (parser.HasKey(_T("patchoriginal")))
 253                 pFrame->m_Data.m_sPatchOriginal = parser.GetVal(_T("patchoriginal"));
 254         if (parser.HasKey(_T("patchpatched")))
 255                 pFrame->m_Data.m_sPatchPatched = parser.GetVal(_T("patchpatched"));
 256         pFrame->m_Data.m_sDiffFile = parser.GetVal(_T("diff"));
 257         pFrame->m_Data.m_sDiffFile.Replace('/', '\\');
 258         if (parser.HasKey(_T("oneway")))
 259                 pFrame->m_bOneWay = TRUE;
 260         if (parser.HasKey(_T("diff")))
 261                 pFrame->m_bOneWay = FALSE;
 262         if (parser.HasKey(_T("reversedpatch")))
 263                 pFrame->m_bReversedPatch = TRUE;
 264         if (parser.HasKey(_T("saverequired")))
 265                 pFrame->m_bSaveRequired = true;
 266         if (pFrame->m_Data.IsBaseFileInUse() && !pFrame->m_Data.IsYourFileInUse() && pFrame->m_Data.IsTheirFileInUse())
 267         {
 268                 pFrame->m_Data.m_yourFile.TransferDetailsFrom(pFrame->m_Data.m_theirFile);
 269         }
 270
 271         if ((!parser.HasKey(_T("patchpath")))&&(parser.HasVal(_T("diff"))))
 272         {
 273                 // a patchfile was given, but not folder path to apply the patch to
 274                 // If the patchfile is located inside a working copy, then use the parent directory
 275                 // of the patchfile as the target directory, otherwise ask the user for a path.
 276                 if (parser.HasKey(_T("wc")))
 277                         pFrame->m_Data.m_sPatchPath = pFrame->m_Data.m_sDiffFile.Left(pFrame->m_Data.m_sDiffFile.ReverseFind('\\'));
 278                 else
 279                 {
 280                         CBrowseFolder fbrowser;
 281                         fbrowser.m_style = BIF_EDITBOX | BIF_NEWDIALOGSTYLE | BIF_RETURNFSANCESTORS | BIF_RETURNONLYFSDIRS;
 282                         if (fbrowser.Show(NULL, pFrame->m_Data.m_sPatchPath)==CBrowseFolder::CANCEL)
 283                                 return FALSE;
 284                 }
 285         }
 286
 287         if ((parser.HasKey(_T("patchpath")))&&(!parser.HasVal(_T("diff"))))
 288         {
 289                 // A path was given for applying a patchfile, but
 290                 // the patchfile itself was not.
 291                 // So ask the user for that patchfile
 292
 293                 HRESULT hr;
 294                 // Create a new common save file dialog
 295                 CComPtr<IFileOpenDialog> pfd = NULL;
 296                 hr = pfd.CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER);
 297                 if (SUCCEEDED(hr))
 298                 {
 299                         // Set the dialog options
 300                         DWORD dwOptions;
 301                         if (SUCCEEDED(hr = pfd->GetOptions(&dwOptions)))
 302                         {
 303                                 hr = pfd->SetOptions(dwOptions | FOS_FILEMUSTEXIST | FOS_FORCEFILESYSTEM | FOS_PATHMUSTEXIST);
 304                         }
 305
 306                         // Set a title
 307                         if (SUCCEEDED(hr))
 308                         {
 309                                 CString temp;
 310                                 temp.LoadString(IDS_OPENDIFFFILETITLE);
 311                                 pfd->SetTitle(temp);
 312                         }
 313                         CSelectFileFilter fileFilter(IDS_PATCHFILEFILTER);
 314                         hr = pfd->SetFileTypes(fileFilter.GetCount(), fileFilter);
 315                         bool bAdvised = false;
 316                         DWORD dwCookie = 0;
 317                         CComObjectStackEx<PatchOpenDlgEventHandler> cbk;
 318                         CComQIPtr<IFileDialogEvents> pEvents = cbk.GetUnknown();
 319
 320                         {
 321                                 CComPtr<IFileDialogCustomize> pfdCustomize;
 322                                 hr = pfd->QueryInterface(IID_PPV_ARGS(&pfdCustomize));
 323                                 if (SUCCEEDED(hr))
 324                                 {
 325                                         // check if there's a unified diff on the clipboard and
 326                                         // add a button to the fileopen dialog if there is.
 327                                         UINT cFormat = RegisterClipboardFormat(_T("TSVN_UNIFIEDDIFF"));
 328                                         if ((cFormat)&&(OpenClipboard(NULL)))
 329                                         {
 330                                                 HGLOBAL hglb = GetClipboardData(cFormat);
 331                                                 if (hglb)
 332                                                 {
 333                                                         pfdCustomize->AddPushButton(101, CString(MAKEINTRESOURCE(IDS_PATCH_COPYFROMCLIPBOARD)));
 334                                                         hr = pfd->Advise(pEvents, &dwCookie);
 335                                                         bAdvised = SUCCEEDED(hr);
 336                                                 }
 337                                                 CloseClipboard();
 338                                         }
 339                                 }
 340                         }
 341
 342                         // Show the save file dialog
 343                         if (SUCCEEDED(hr) && SUCCEEDED(hr = pfd->Show(pFrame->m_hWnd)))
 344                         {
 345                                 // Get the selection from the user
 346                                 CComPtr<IShellItem> psiResult = NULL;
 347                                 hr = pfd->GetResult(&psiResult);
 348                                 if (bAdvised)
 349                                         pfd->Unadvise(dwCookie);
 350                                 if (SUCCEEDED(hr))
 351                                 {
 352                                         PWSTR pszPath = NULL;
 353                                         hr = psiResult->GetDisplayName(SIGDN_FILESYSPATH, &pszPath);
 354                                         if (SUCCEEDED(hr))
 355                                         {
 356                                                 pFrame->m_Data.m_sDiffFile = pszPath;
 357                                                 CoTaskMemFree(pszPath);
 358                                         }
 359                                 }
 360                                 else
 361                                 {
 362                                         // no result, which means we closed the dialog in our button handler
 363                                         std::wstring sTempFile;
 364                                         if (TrySavePatchFromClipboard(sTempFile))
 365                                                 pFrame->m_Data.m_sDiffFile = sTempFile.c_str();
 366                                 }
 367                         }
 368                         else
 369                         {
 370                                 if (bAdvised)
 371                                         pfd->Unadvise(dwCookie);
 372                                 return FALSE;
 373                         }
 374                 }
 375                 else
 376                 {
 377                         OPENFILENAME ofn = {0};         // common dialog box structure
 378                         TCHAR szFile[MAX_PATH] = {0};   // buffer for file name
 379                         // Initialize OPENFILENAME
 380                         ofn.lStructSize = sizeof(OPENFILENAME);
 381                         ofn.hwndOwner = pFrame->m_hWnd;
 382                         ofn.lpstrFile = szFile;
 383                         ofn.nMaxFile = _countof(szFile);
 384                         CString temp;
 385                         temp.LoadString(IDS_OPENDIFFFILETITLE);
 386                         if (temp.IsEmpty())
 387                                 ofn.lpstrTitle = NULL;
 388                         else
 389                                 ofn.lpstrTitle = temp;
 390
 391                         ofn.Flags = OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY | OFN_EXPLORER;
 392                         if( HasClipboardPatch() ) {
 393                                 ofn.Flags |= ( OFN_ENABLETEMPLATE | OFN_ENABLEHOOK );
 394                                 ofn.hInstance = AfxGetResourceHandle();
 395                                 ofn.lpTemplateName = MAKEINTRESOURCE(IDD_PATCH_FILE_OPEN_CUSTOM);
 396                                 ofn.lpfnHook = CreatePatchFileOpenHook;
 397                         }
 398
 399                         CSelectFileFilter fileFilter(IDS_PATCHFILEFILTER);
 400                         ofn.lpstrFilter = fileFilter;
 401                         ofn.nFilterIndex = 1;
 402
 403                         // Display the Open dialog box.
 404                         if (GetOpenFileName(&ofn)==FALSE)
 405                         {
 406                                 return FALSE;
 407                         }
 408                         pFrame->m_Data.m_sDiffFile = ofn.lpstrFile;
 409                 }
 410         }
 411
 412         if ( pFrame->m_Data.m_baseFile.GetFilename().IsEmpty() && pFrame->m_Data.m_yourFile.GetFilename().IsEmpty() )
 413         {
 414                 int nArgs;
 415                 LPWSTR *szArglist = CommandLineToArgvW(GetCommandLineW(), &nArgs);
 416                 if( NULL == szArglist )
 417                 {
 418                         TRACE("CommandLineToArgvW failed\n");
 419                 }
 420                 else
 421                 {
 422                         if ( nArgs==3 || nArgs==4 )
 423                         {
 424                                 // Four parameters:
 425                                 // [0]: Program name
 426                                 // [1]: BASE file
 427                                 // [2]: my file
 428                                 // [3]: THEIR file (optional)
 429                                 // This is the same format CAppUtils::StartExtDiff
 430                                 // uses if %base and %mine are not set and most
 431                                 // other diff tools use it too.
 432                                 if ( PathFileExists(szArglist[1]) && PathFileExists(szArglist[2]) )
 433                                 {
 434                                         pFrame->m_Data.m_baseFile.SetFileName(szArglist[1]);
 435                                         pFrame->m_Data.m_yourFile.SetFileName(szArglist[2]);
 436                                         if ( nArgs == 4 && PathFileExists(szArglist[3]) )
 437                                         {
 438                                                 pFrame->m_Data.m_theirFile.SetFileName(szArglist[3]);
 439                                         }
 440                                 }
 441                         }
 442                 }
 443
 444                 // Free memory allocated for CommandLineToArgvW arguments.
 445                 LocalFree(szArglist);
 446         }
 447
 448         pFrame->m_bReadOnly = !!parser.HasKey(_T("readonly"));
 449         if (GetFileAttributes(pFrame->m_Data.m_yourFile.GetFilename()) & FILE_ATTRIBUTE_READONLY)
 450                 pFrame->m_bReadOnly = true;
 451         pFrame->m_bBlame = !!parser.HasKey(_T("blame"));
 452         // diffing a blame means no editing!
 453         if (pFrame->m_bBlame)
 454                 pFrame->m_bReadOnly = true;
 455
 456         pFrame->SetWindowTitle();
 457
 458         if (parser.HasKey(_T("createunifieddiff")))
 459         {
 460                 // user requested to create a unified diff file
 461                 CString origFile = parser.GetVal(_T("origfile"));
 462                 CString modifiedFile = parser.GetVal(_T("modifiedfile"));
 463                 if (!origFile.IsEmpty() && !modifiedFile.IsEmpty())
 464                 {
 465                         CString outfile = parser.GetVal(_T("outfile"));
 466                         if (outfile.IsEmpty())
 467                         {
 468                                 CCommonAppUtils::FileOpenSave(outfile, NULL, IDS_SAVEASTITLE, IDS_COMMONFILEFILTER, false, NULL);
 469                         }
 470                         if (!outfile.IsEmpty())
 471                         {
 472                                 CAppUtils::CreateUnifiedDiff(origFile, modifiedFile, outfile, false);
 473                                 return FALSE;
 474                         }
 475                 }
 476         }
 477
 478 #if 0
 479         pFrame->resolveMsgWnd    = parser.HasVal(L"resolvemsghwnd")   ? (HWND)parser.GetLongLongVal(L"resolvemsghwnd")     : 0;
 480         pFrame->resolveMsgWParam = parser.HasVal(L"resolvemsgwparam") ? (WPARAM)parser.GetLongLongVal(L"resolvemsgwparam") : 0;
 481         pFrame->resolveMsgLParam = parser.HasVal(L"resolvemsglparam") ? (LPARAM)parser.GetLongLongVal(L"resolvemsglparam") : 0;
 482 #endif
 483
 484         // The one and only window has been initialized, so show and update it
 485         pFrame->ActivateFrame();
 486         pFrame->ShowWindow(SW_SHOW);
 487         pFrame->UpdateWindow();
 488         pFrame->ShowDiffBar(!pFrame->m_bOneWay);
 489         if (!pFrame->m_Data.IsBaseFileInUse() && pFrame->m_Data.m_sPatchPath.IsEmpty() && pFrame->m_Data.m_sDiffFile.IsEmpty())
 490         {
 491                 pFrame->OnFileOpen();
 492                 return TRUE;
 493         }
 494
 495         int line = -2;
 496         if (parser.HasVal(_T("line")))
 497         {
 498                 line = parser.GetLongVal(_T("line"));
 499                 line--; // we need the index
 500         }
 501
 502         return pFrame->LoadViews(line);
 503 }
 504
 505 // CTortoiseMergeApp message handlers
 506
 507 void CTortoiseMergeApp::OnAppAbout()
 508 {
 509         CAboutDlg aboutDlg;
 510         aboutDlg.DoModal();
 511 }
 512
 513 UINT_PTR CALLBACK
 514 CTortoiseMergeApp::CreatePatchFileOpenHook(HWND hDlg, UINT uiMsg, WPARAM wParam, LPARAM /*lParam*/)
 515 {
 516         if(uiMsg == WM_COMMAND && LOWORD(wParam) == IDC_PATCH_TO_CLIPBOARD)
 517         {
 518                 HWND hFileDialog = GetParent(hDlg);
 519
 520                 // if there's a patchfile in the clipboard, we save it
 521                 // to a temporary file and tell TortoiseMerge to use that one
 522                 std::wstring sTempFile;
 523                 if (TrySavePatchFromClipboard(sTempFile))
 524                 {
 525                         CommDlg_OpenSave_SetControlText(hFileDialog, edt1, sTempFile.c_str());
 526                         PostMessage(hFileDialog, WM_COMMAND, MAKEWPARAM(IDOK, BM_CLICK), (LPARAM)(GetDlgItem(hDlg, IDOK)));
 527                 }
 528         }
 529         return 0;
 530 }
 531
 532 int CTortoiseMergeApp::ExitInstance()
 533 {
 534         // Look for temporary files left around by TortoiseMerge and
 535         // remove them. But only delete 'old' files
 536         CTempFiles::DeleteOldTempFiles(_T("*tsm*.*"));
 537
 538         return CWinAppEx::ExitInstance();
 539 }
 540
 541 bool CTortoiseMergeApp::HasClipboardPatch()
 542 {
 543         // check if there's a patchfile in the clipboard
 544         const UINT cFormat = RegisterClipboardFormat(_T("TSVN_UNIFIEDDIFF"));
 545         if (cFormat == 0)
 546                 return false;
 547
 548         if (OpenClipboard(NULL) == 0)
 549                 return false;
 550
 551         bool containsPatch = false;
 552         UINT enumFormat = 0;
 553         do
 554         {
 555                 if (enumFormat == cFormat)
 556                 {
 557                         containsPatch = true;   // yes, there's a patchfile in the clipboard
 558                 }
 559         } while((enumFormat = EnumClipboardFormats(enumFormat))!=0);
 560         CloseClipboard();
 561
 562         return containsPatch;
 563 }
 564
 565 bool CTortoiseMergeApp::TrySavePatchFromClipboard(std::wstring& resultFile)
 566 {
 567         resultFile.clear();
 568
 569         UINT cFormat = RegisterClipboardFormat(_T("TSVN_UNIFIEDDIFF"));
 570         if (cFormat == 0)
 571                 return false;
 572         if (OpenClipboard(NULL) == 0)
 573                 return false;
 574
 575         HGLOBAL hglb = GetClipboardData(cFormat);
 576         LPCSTR lpstr = (LPCSTR)GlobalLock(hglb);
 577
 578         DWORD len = GetTempPath(0, NULL);
 579         std::unique_ptr<TCHAR[]> path(new TCHAR[len+1]);
 580         std::unique_ptr<TCHAR[]> tempF(new TCHAR[len+100]);
 581         GetTempPath (len+1, path.get());
 582         GetTempFileName (path.get(), _T("tsm"), 0, tempF.get());
 583         std::wstring sTempFile = std::wstring(tempF.get());
 584
 585         FILE* outFile = 0;
 586         _tfopen_s(&outFile, sTempFile.c_str(), _T("wb"));
 587         if (outFile != 0)
 588         {
 589                 size_t patchlen = strlen(lpstr);
 590                 size_t size = fwrite(lpstr, sizeof(char), patchlen, outFile);
 591                 if (size == patchlen)
 592                          resultFile = sTempFile;
 593
 594                 fclose(outFile);
 595         }
 596         GlobalUnlock(hglb);
 597         CloseClipboard();
 598
 599         return !resultFile.empty();
 600 }