src/TortoiseMerge/TortoiseMerge.cpp

   1 // TortoiseGitMerge - a Diff/Patch program
   2
   3 // Copyright (C) 2013-2017 - TortoiseGit
   4 // Copyright (C) 2006-2014, 2016 - 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 #pragma comment(lib, "Propsys.lib")
  42
  43 BEGIN_MESSAGE_MAP(CTortoiseMergeApp, CWinAppEx)
  44         ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
  45 END_MESSAGE_MAP()
  46
  47 class PatchOpenDlgEventHandler : public CFileDlgEventHandler
  48 {
  49 public:
  50         PatchOpenDlgEventHandler() {}
  51         ~PatchOpenDlgEventHandler() {}
  52
  53         virtual STDMETHODIMP OnButtonClicked(IFileDialogCustomize* pfdc, DWORD dwIDCtl)
  54         {
  55                 if (dwIDCtl == 101)
  56                 {
  57                         CComQIPtr<IFileOpenDialog> pDlg = pfdc;
  58                         if (pDlg)
  59                         {
  60                                 pDlg->Close(S_OK);
  61                         }
  62                 }
  63                 return S_OK;
  64         }
  65 };
  66
  67
  68 CTortoiseMergeApp::CTortoiseMergeApp()
  69 {
  70         EnableHtmlHelp();
  71         git_libgit2_init();
  72 }
  73
  74 CTortoiseMergeApp::~CTortoiseMergeApp()
  75 {
  76         git_libgit2_shutdown();
  77 }
  78
  79 // The one and only CTortoiseMergeApp object
  80 CTortoiseMergeApp theApp;
  81 CString sOrigCWD;
  82 #if ENABLE_CRASHHANLDER
  83 CCrashReportTGit g_crasher(L"TortoiseGitMerge " _T(APP_X64_STRING), TGIT_VERMAJOR, TGIT_VERMINOR, TGIT_VERMICRO, TGIT_VERBUILD, TGIT_VERDATE);
  84 #endif
  85
  86 CString g_sGroupingUUID;
  87 CString g_sGroupingIcon;
  88 bool g_bGroupingRemoveIcon = false;
  89
  90 // CTortoiseMergeApp initialization
  91 BOOL CTortoiseMergeApp::InitInstance()
  92 {
  93         SetDllDirectory(L"");
  94         SetTaskIDPerUUID();
  95         CCrashReport::Instance().AddUserInfoToReport(L"CommandLine", GetCommandLine());
  96
  97         {
  98                 DWORD len = GetCurrentDirectory(0, nullptr);
  99                 if (len)
 100                 {
 101                         auto originalCurrentDirectory = std::make_unique<TCHAR[]>(len);
 102                         if (GetCurrentDirectory(len, originalCurrentDirectory.get()))
 103                         {
 104                                 sOrigCWD = originalCurrentDirectory.get();
 105                                 sOrigCWD = CPathUtils::GetLongPathname(sOrigCWD);
 106                         }
 107                 }
 108         }
 109
 110         //set the resource dll for the required language
 111         CRegDWORD loc = CRegDWORD(L"Software\\TortoiseGit\\LanguageID", 1033);
 112         long langId = loc;
 113         CString langDll;
 114         HINSTANCE hInst = nullptr;
 115         do
 116         {
 117                 langDll.Format(L"%sLanguages\\TortoiseMerge%ld.dll", (LPCTSTR)CPathUtils::GetAppParentDirectory(), langId);
 118
 119                 hInst = LoadLibrary(langDll);
 120                 CString sVer = _T(STRPRODUCTVER);
 121                 CString sFileVer = CPathUtils::GetVersionFromFile(langDll);
 122                 if (sFileVer.Compare(sVer)!=0)
 123                 {
 124                         FreeLibrary(hInst);
 125                         hInst = nullptr;
 126                 }
 127                 if (hInst)
 128                         AfxSetResourceHandle(hInst);
 129                 else
 130                 {
 131                         DWORD lid = SUBLANGID(langId);
 132                         lid--;
 133                         if (lid > 0)
 134                         {
 135                                 langId = MAKELANGID(PRIMARYLANGID(langId), lid);
 136                         }
 137                         else
 138                                 langId = 0;
 139                 }
 140         } while ((!hInst) && (langId != 0));
 141         {
 142                 CString langStr;
 143                 langStr.Format(L"%ld", langId);
 144                 CCrashReport::Instance().AddUserInfoToReport(L"LanguageID", langStr);
 145         }
 146         TCHAR buf[6] = { 0 };
 147         wcscpy_s(buf, L"en");
 148         langId = loc;
 149         CString sHelppath = CPathUtils::GetAppDirectory() + L"TortoiseMerge_en.chm";
 150         free((void*)m_pszHelpFilePath);
 151         m_pszHelpFilePath=_wcsdup(sHelppath);
 152         sHelppath = CPathUtils::GetAppParentDirectory() + L"Languages\\TortoiseMerge_en.chm";
 153         do
 154         {
 155                 GetLocaleInfo(MAKELCID(langId, SORT_DEFAULT), LOCALE_SISO639LANGNAME, buf, _countof(buf));
 156                 CString sLang = L"_";
 157                 sLang += buf;
 158                 sHelppath.Replace(L"_en", sLang);
 159                 if (PathFileExists(sHelppath))
 160                 {
 161                         free((void*)m_pszHelpFilePath);
 162                         m_pszHelpFilePath=_wcsdup(sHelppath);
 163                         break;
 164                 }
 165                 sHelppath.Replace(sLang, L"_en");
 166                 GetLocaleInfo(MAKELCID(langId, SORT_DEFAULT), LOCALE_SISO3166CTRYNAME, buf, _countof(buf));
 167                 sLang += L'_';
 168                 sLang += buf;
 169                 sHelppath.Replace(L"_en", sLang);
 170                 if (PathFileExists(sHelppath))
 171                 {
 172                         free((void*)m_pszHelpFilePath);
 173                         m_pszHelpFilePath=_wcsdup(sHelppath);
 174                         break;
 175                 }
 176                 sHelppath.Replace(sLang, L"_en");
 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         } while (langId);
 187         setlocale(LC_ALL, "");
 188         // We need to explicitly set the thread locale to the system default one to avoid possible problems with saving files in its original codepage
 189         // The problems occures when the language of OS differs from the regional settings
 190         // See the details here: http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=100887
 191         SetThreadLocale(LOCALE_SYSTEM_DEFAULT);
 192
 193         // InitCommonControls() is required on Windows XP if an application
 194         // manifest specifies use of ComCtl32.dll version 6 or later to enable
 195         // visual styles.  Otherwise, any window creation will fail.
 196         InitCommonControls();
 197
 198         CMFCVisualManager::SetDefaultManager(RUNTIME_CLASS(CMFCVisualManagerWindows7));
 199         CMFCButton::EnableWindowsTheming();
 200         EnableTaskbarInteraction(FALSE);
 201
 202         // Initialize all Managers for usage. They are automatically constructed
 203         // if not yet present
 204         InitContextMenuManager();
 205         InitKeyboardManager();
 206         InitTooltipManager ();
 207         CMFCToolTipInfo params;
 208         params.m_bVislManagerTheme = TRUE;
 209
 210         GetTooltipManager ()->SetTooltipParams (
 211                 AFX_TOOLTIP_TYPE_ALL,
 212                 RUNTIME_CLASS (CMFCToolTipCtrl),
 213                 &params);
 214
 215         CCmdLineParser parser(m_lpCmdLine);
 216
 217         g_sGroupingUUID = parser.GetVal(L"groupuuid");
 218
 219         if (parser.HasKey(L"?") || parser.HasKey(L"help"))
 220         {
 221                 CString sHelpText;
 222                 sHelpText.LoadString(IDS_COMMANDLINEHELP);
 223                 MessageBox(nullptr, sHelpText, L"TortoiseGitMerge", MB_ICONINFORMATION);
 224                 return FALSE;
 225         }
 226
 227         // Initialize OLE libraries
 228         if (!AfxOleInit())
 229         {
 230                 AfxMessageBox(IDP_OLE_INIT_FAILED);
 231                 return FALSE;
 232         }
 233         AfxEnableControlContainer();
 234         // Standard initialization
 235         // If you are not using these features and wish to reduce the size
 236         // of your final executable, you should remove from the following
 237         // the specific initialization routines you do not need
 238         // Change the registry key under which our settings are stored
 239         SetRegistryKey(L"TortoiseGitMerge");
 240
 241         if (CRegDWORD(L"Software\\TortoiseGitMerge\\Debug", FALSE)==TRUE)
 242                 AfxMessageBox(AfxGetApp()->m_lpCmdLine, MB_OK | MB_ICONINFORMATION);
 243
 244         // To create the main window, this code creates a new frame window
 245         // object and then sets it as the application's main window object
 246         CMainFrame* pFrame = new CMainFrame;
 247         if (!pFrame)
 248                 return FALSE;
 249         m_pMainWnd = pFrame;
 250
 251         // create and load the frame with its resources
 252         if (!pFrame->LoadFrame(IDR_MAINFRAME, WS_OVERLAPPEDWINDOW | FWS_ADDTOTITLE, nullptr, nullptr))
 253                 return FALSE;
 254
 255         // Fill in the command line options
 256         pFrame->m_Data.m_baseFile.SetFileName(parser.GetVal(L"base"));
 257         pFrame->m_Data.m_baseFile.SetDescriptiveName(parser.GetVal(L"basename"));
 258         pFrame->m_Data.m_baseFile.SetReflectedName(parser.GetVal(L"basereflectedname"));
 259         pFrame->m_Data.m_theirFile.SetFileName(parser.GetVal(L"theirs"));
 260         pFrame->m_Data.m_theirFile.SetDescriptiveName(parser.GetVal(L"theirsname"));
 261         pFrame->m_Data.m_theirFile.SetReflectedName(parser.GetVal(L"theirsreflectedname"));
 262         pFrame->m_Data.m_yourFile.SetFileName(parser.GetVal(L"mine"));
 263         pFrame->m_Data.m_yourFile.SetDescriptiveName(parser.GetVal(L"minename"));
 264         pFrame->m_Data.m_yourFile.SetReflectedName(parser.GetVal(L"minereflectedname"));
 265         pFrame->m_Data.m_mergedFile.SetFileName(parser.GetVal(L"merged"));
 266         pFrame->m_Data.m_mergedFile.SetDescriptiveName(parser.GetVal(L"mergedname"));
 267         pFrame->m_Data.m_mergedFile.SetReflectedName(parser.GetVal(L"mergedreflectedname"));
 268         pFrame->m_Data.m_sPatchPath = parser.HasVal(L"patchpath") ? parser.GetVal(L"patchpath") : L"";
 269         pFrame->m_Data.m_sPatchPath.Replace('/', '\\');
 270         if (parser.HasKey(L"patchoriginal"))
 271                 pFrame->m_Data.m_sPatchOriginal = parser.GetVal(L"patchoriginal");
 272         if (parser.HasKey(L"patchpatched"))
 273                 pFrame->m_Data.m_sPatchPatched = parser.GetVal(L"patchpatched");
 274         pFrame->m_Data.m_sDiffFile = parser.GetVal(L"diff");
 275         pFrame->m_Data.m_sDiffFile.Replace('/', '\\');
 276         if (parser.HasKey(L"oneway"))
 277                 pFrame->m_bOneWay = TRUE;
 278         if (parser.HasKey(L"diff"))
 279                 pFrame->m_bOneWay = FALSE;
 280         if (parser.HasKey(L"reversedpatch"))
 281                 pFrame->m_bReversedPatch = TRUE;
 282         if (parser.HasKey(L"saverequired"))
 283                 pFrame->m_bSaveRequired = true;
 284         if (parser.HasKey(L"saverequiredonconflicts"))
 285                 pFrame->m_bSaveRequiredOnConflicts = true;
 286         if (parser.HasKey(L"deletebasetheirsmineonclose"))
 287                 pFrame->m_bDeleteBaseTheirsMineOnClose = true;
 288         if (pFrame->m_Data.IsBaseFileInUse() && !pFrame->m_Data.IsYourFileInUse() && pFrame->m_Data.IsTheirFileInUse())
 289         {
 290                 pFrame->m_Data.m_yourFile.TransferDetailsFrom(pFrame->m_Data.m_theirFile);
 291         }
 292
 293         if ((!parser.HasKey(L"patchpath")) && (parser.HasVal(L"diff")))
 294         {
 295                 // a patchfile was given, but not folder path to apply the patch to
 296                 // If the patchfile is located inside a working copy, then use the parent directory
 297                 // of the patchfile as the target directory, otherwise ask the user for a path.
 298                 if (parser.HasKey(L"wc"))
 299                         pFrame->m_Data.m_sPatchPath = pFrame->m_Data.m_sDiffFile.Left(pFrame->m_Data.m_sDiffFile.ReverseFind('\\'));
 300                 else
 301                 {
 302                         CBrowseFolder fbrowser;
 303                         fbrowser.m_style = BIF_EDITBOX | BIF_NEWDIALOGSTYLE | BIF_RETURNFSANCESTORS | BIF_RETURNONLYFSDIRS;
 304                         if (fbrowser.Show(nullptr, pFrame->m_Data.m_sPatchPath) == CBrowseFolder::CANCEL)
 305                                 return FALSE;
 306                 }
 307         }
 308
 309         if ((parser.HasKey(L"patchpath")) && (!parser.HasVal(L"diff")))
 310         {
 311                 // A path was given for applying a patchfile, but
 312                 // the patchfile itself was not.
 313                 // So ask the user for that patchfile
 314
 315                 HRESULT hr;
 316                 // Create a new common save file dialog
 317                 CComPtr<IFileOpenDialog> pfd;
 318                 hr = pfd.CoCreateInstance(CLSID_FileOpenDialog, nullptr, CLSCTX_INPROC_SERVER);
 319                 if (SUCCEEDED(hr))
 320                 {
 321                         // Set the dialog options
 322                         DWORD dwOptions;
 323                         if (SUCCEEDED(hr = pfd->GetOptions(&dwOptions)))
 324                         {
 325                                 hr = pfd->SetOptions(dwOptions | FOS_FILEMUSTEXIST | FOS_FORCEFILESYSTEM | FOS_PATHMUSTEXIST);
 326                         }
 327
 328                         // Set a title
 329                         if (SUCCEEDED(hr))
 330                         {
 331                                 CString temp;
 332                                 temp.LoadString(IDS_OPENDIFFFILETITLE);
 333                                 pfd->SetTitle(temp);
 334                         }
 335                         CSelectFileFilter fileFilter(IDS_PATCHFILEFILTER);
 336                         hr = pfd->SetFileTypes(fileFilter.GetCount(), fileFilter);
 337                         bool bAdvised = false;
 338                         DWORD dwCookie = 0;
 339                         CComObjectStackEx<PatchOpenDlgEventHandler> cbk;
 340                         CComQIPtr<IFileDialogEvents> pEvents = cbk.GetUnknown();
 341
 342                         {
 343                                 CComPtr<IFileDialogCustomize> pfdCustomize;
 344                                 hr = pfd.QueryInterface(&pfdCustomize);
 345                                 if (SUCCEEDED(hr))
 346                                 {
 347                                         // check if there's a unified diff on the clipboard and
 348                                         // add a button to the fileopen dialog if there is.
 349                                         UINT cFormat = RegisterClipboardFormat(L"TGIT_UNIFIEDDIFF");
 350                                         if ((cFormat) && (OpenClipboard(nullptr)))
 351                                         {
 352                                                 HGLOBAL hglb = GetClipboardData(cFormat);
 353                                                 if (hglb)
 354                                                 {
 355                                                         pfdCustomize->AddPushButton(101, CString(MAKEINTRESOURCE(IDS_PATCH_COPYFROMCLIPBOARD)));
 356                                                         hr = pfd->Advise(pEvents, &dwCookie);
 357                                                         bAdvised = SUCCEEDED(hr);
 358                                                 }
 359                                                 CloseClipboard();
 360                                         }
 361                                 }
 362                         }
 363
 364                         // Show the save file dialog
 365                         if (SUCCEEDED(hr) && SUCCEEDED(hr = pfd->Show(pFrame->m_hWnd)))
 366                         {
 367                                 // Get the selection from the user
 368                                 CComPtr<IShellItem> psiResult;
 369                                 hr = pfd->GetResult(&psiResult);
 370                                 if (bAdvised)
 371                                         pfd->Unadvise(dwCookie);
 372                                 if (SUCCEEDED(hr))
 373                                 {
 374                                         PWSTR pszPath = nullptr;
 375                                         hr = psiResult->GetDisplayName(SIGDN_FILESYSPATH, &pszPath);
 376                                         if (SUCCEEDED(hr))
 377                                         {
 378                                                 pFrame->m_Data.m_sDiffFile = pszPath;
 379                                                 CoTaskMemFree(pszPath);
 380                                         }
 381                                 }
 382                                 else
 383                                 {
 384                                         // no result, which means we closed the dialog in our button handler
 385                                         std::wstring sTempFile;
 386                                         if (TrySavePatchFromClipboard(sTempFile))
 387                                                 pFrame->m_Data.m_sDiffFile = sTempFile.c_str();
 388                                 }
 389                         }
 390                         else
 391                         {
 392                                 if (bAdvised)
 393                                         pfd->Unadvise(dwCookie);
 394                                 return FALSE;
 395                         }
 396                 }
 397         }
 398
 399         if ( pFrame->m_Data.m_baseFile.GetFilename().IsEmpty() && pFrame->m_Data.m_yourFile.GetFilename().IsEmpty() )
 400         {
 401                 int nArgs;
 402                 LPWSTR *szArglist = CommandLineToArgvW(GetCommandLineW(), &nArgs);
 403                 if (!szArglist)
 404                         TRACE("CommandLineToArgvW failed\n");
 405                 else
 406                 {
 407                         if ( nArgs==3 || nArgs==4 )
 408                         {
 409                                 // Four parameters:
 410                                 // [0]: Program name
 411                                 // [1]: BASE file
 412                                 // [2]: my file
 413                                 // [3]: THEIR file (optional)
 414                                 // This is the same format CAppUtils::StartExtDiff
 415                                 // uses if %base and %mine are not set and most
 416                                 // other diff tools use it too.
 417                                 if ( PathFileExists(szArglist[1]) && PathFileExists(szArglist[2]) )
 418                                 {
 419                                         pFrame->m_Data.m_baseFile.SetFileName(szArglist[1]);
 420                                         pFrame->m_Data.m_yourFile.SetFileName(szArglist[2]);
 421                                         if ( nArgs == 4 && PathFileExists(szArglist[3]) )
 422                                         {
 423                                                 pFrame->m_Data.m_theirFile.SetFileName(szArglist[3]);
 424                                         }
 425                                 }
 426                         }
 427                         else if (nArgs == 2)
 428                         {
 429                                 // only one path specified: use it to fill the "open" dialog
 430                                 if (PathFileExists(szArglist[1]))
 431                                 {
 432                                         pFrame->m_Data.m_yourFile.SetFileName(szArglist[1]);
 433                                         pFrame->m_Data.m_yourFile.StoreFileAttributes();
 434                                 }
 435                         }
 436                 }
 437
 438                 // Free memory allocated for CommandLineToArgvW arguments.
 439                 LocalFree(szArglist);
 440         }
 441
 442         pFrame->m_bReadOnly = !!parser.HasKey(L"readonly");
 443         if (GetFileAttributes(pFrame->m_Data.m_yourFile.GetFilename()) & FILE_ATTRIBUTE_READONLY)
 444                 pFrame->m_bReadOnly = true;
 445         pFrame->m_bBlame = !!parser.HasKey(L"blame");
 446         // diffing a blame means no editing!
 447         if (pFrame->m_bBlame)
 448                 pFrame->m_bReadOnly = true;
 449
 450         pFrame->SetWindowTitle();
 451
 452         if (parser.HasKey(L"createunifieddiff"))
 453         {
 454                 // user requested to create a unified diff file
 455                 CString origFile = parser.GetVal(L"origfile");
 456                 CString modifiedFile = parser.GetVal(L"modifiedfile");
 457                 if (!origFile.IsEmpty() && !modifiedFile.IsEmpty())
 458                 {
 459                         CString outfile = parser.GetVal(L"outfile");
 460                         if (outfile.IsEmpty())
 461                         {
 462                                 CCommonAppUtils::FileOpenSave(outfile, nullptr, IDS_SAVEASTITLE, IDS_COMMONFILEFILTER, false);
 463                         }
 464                         if (!outfile.IsEmpty())
 465                         {
 466                                 CRegStdDWORD regContextLines(L"Software\\TortoiseGitMerge\\ContextLines", (DWORD)-1);
 467                                 CAppUtils::CreateUnifiedDiff(origFile, modifiedFile, outfile, regContextLines, false);
 468                                 return FALSE;
 469                         }
 470                 }
 471         }
 472
 473         pFrame->resolveMsgWnd    = parser.HasVal(L"resolvemsghwnd")   ? (HWND)parser.GetLongLongVal(L"resolvemsghwnd")     : 0;
 474         pFrame->resolveMsgWParam = parser.HasVal(L"resolvemsgwparam") ? (WPARAM)parser.GetLongLongVal(L"resolvemsgwparam") : 0;
 475         pFrame->resolveMsgLParam = parser.HasVal(L"resolvemsglparam") ? (LPARAM)parser.GetLongLongVal(L"resolvemsglparam") : 0;
 476
 477         // The one and only window has been initialized, so show and update it
 478         pFrame->ActivateFrame();
 479         pFrame->ShowWindow(SW_SHOW);
 480         pFrame->UpdateWindow();
 481         pFrame->ShowDiffBar(!pFrame->m_bOneWay);
 482         if (!pFrame->m_Data.IsBaseFileInUse() && pFrame->m_Data.m_sPatchPath.IsEmpty() && pFrame->m_Data.m_sDiffFile.IsEmpty())
 483         {
 484                 pFrame->OnFileOpen(pFrame->m_Data.m_yourFile.InUse());
 485                 return TRUE;
 486         }
 487
 488         int line = -2;
 489         if (parser.HasVal(L"line"))
 490         {
 491                 line = parser.GetLongVal(L"line");
 492                 line--; // we need the index
 493         }
 494
 495         return pFrame->LoadViews(line);
 496 }
 497
 498 // CTortoiseMergeApp message handlers
 499
 500 void CTortoiseMergeApp::OnAppAbout()
 501 {
 502         CAboutDlg aboutDlg;
 503         aboutDlg.DoModal();
 504 }
 505
 506 int CTortoiseMergeApp::ExitInstance()
 507 {
 508         // Look for temporary files left around by TortoiseMerge and
 509         // remove them. But only delete 'old' files
 510         CTempFiles::DeleteOldTempFiles(L"*tsm*.*");
 511
 512         return CWinAppEx::ExitInstance();
 513 }
 514
 515 bool CTortoiseMergeApp::HasClipboardPatch()
 516 {
 517         // check if there's a patchfile in the clipboard
 518         const UINT cFormat = RegisterClipboardFormat(L"TGIT_UNIFIEDDIFF");
 519         if (cFormat == 0)
 520                 return false;
 521
 522         if (OpenClipboard(nullptr) == 0)
 523                 return false;
 524
 525         bool containsPatch = false;
 526         UINT enumFormat = 0;
 527         do
 528         {
 529                 if (enumFormat == cFormat)
 530                 {
 531                         containsPatch = true;   // yes, there's a patchfile in the clipboard
 532                 }
 533         } while((enumFormat = EnumClipboardFormats(enumFormat))!=0);
 534         CloseClipboard();
 535
 536         return containsPatch;
 537 }
 538
 539 bool CTortoiseMergeApp::TrySavePatchFromClipboard(std::wstring& resultFile)
 540 {
 541         resultFile.clear();
 542
 543         UINT cFormat = RegisterClipboardFormat(L"TGIT_UNIFIEDDIFF");
 544         if (cFormat == 0)
 545                 return false;
 546         if (OpenClipboard(nullptr) == 0)
 547                 return false;
 548
 549         HGLOBAL hglb = GetClipboardData(cFormat);
 550         LPCSTR lpstr = (LPCSTR)GlobalLock(hglb);
 551
 552         DWORD len = GetTempPath(0, nullptr);
 553         auto path = std::make_unique<TCHAR[]>(len + 1);
 554         auto tempF = std::make_unique<TCHAR[]>(len + 100);
 555         GetTempPath (len+1, path.get());
 556         GetTempFileName (path.get(), L"tsm", 0, tempF.get());
 557         std::wstring sTempFile = std::wstring(tempF.get());
 558
 559         FILE* outFile = 0;
 560         _wfopen_s(&outFile, sTempFile.c_str(), L"wb");
 561         if (outFile != 0)
 562         {
 563                 size_t patchlen = strlen(lpstr);
 564                 size_t size = fwrite(lpstr, sizeof(char), patchlen, outFile);
 565                 if (size == patchlen)
 566                          resultFile = sTempFile;
 567
 568                 fclose(outFile);
 569         }
 570         GlobalUnlock(hglb);
 571         CloseClipboard();
 572
 573         return !resultFile.empty();
 574 }