Src/Merge.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 //    WinMerge:  an interactive diff/merge utility
   3 //    Copyright (C) 1997-2000  Thingamahoochie Software
   4 //    Author: Dean Grimm
   5 //    SPDX-License-Identifier: GPL-2.0-or-later
   6 /////////////////////////////////////////////////////////////////////////////
   7 /**
   8  * @file  Merge.cpp
   9  *
  10  * @brief Defines the class behaviors for the application.
  11  *
  12  */
  13
  14 #include "stdafx.h"
  15 #include "Merge.h"
  16 #include "Constants.h"
  17 #include "UnicodeString.h"
  18 #include "unicoder.h"
  19 #include "Environment.h"
  20 #include "OptionsMgr.h"
  21 #include "OptionsInit.h"
  22 #include "RegOptionsMgr.h"
  23 #include "OpenDoc.h"
  24 #include "OpenFrm.h"
  25 #include "OpenView.h"
  26 #include "HexMergeDoc.h"
  27 #include "HexMergeFrm.h"
  28 #include "HexMergeView.h"
  29 #include "AboutDlg.h"
  30 #include "MainFrm.h"
  31 #include "MergeEditFrm.h"
  32 #include "DirFrame.h"
  33 #include "MergeDoc.h"
  34 #include "DirDoc.h"
  35 #include "DirView.h"
  36 #include "PropBackups.h"
  37 #include "FileOrFolderSelect.h"
  38 #include "FileFilterHelper.h"
  39 #include "LineFiltersList.h"
  40 #include "SubstitutionFiltersList.h"
  41 #include "SyntaxColors.h"
  42 #include "CCrystalTextMarkers.h"
  43 #include "OptionsSyntaxColors.h"
  44 #include "Plugins.h"
  45 #include "ProjectFile.h"
  46 #include "MergeEditSplitterView.h"
  47 #include "LanguageSelect.h"
  48 #include "OptionsDef.h"
  49 #include "MergeCmdLineInfo.h"
  50 #include "ConflictFileParser.h"
  51 #include "JumpList.h"
  52 #include "stringdiffs.h"
  53 #include "TFile.h"
  54 #include "paths.h"
  55 #include "Shell.h"
  56 #include "CompareStats.h"
  57 #include "TestMain.h"
  58 #include "charsets.h" // For shutdown cleanup
  59
  60 #ifdef _DEBUG
  61 #define new DEBUG_NEW
  62 #endif
  63
  64 /** @brief Location for command line help to open. */
  65 static const TCHAR CommandLineHelpLocation[] = _T("::/htmlhelp/Command_line.html");
  66
  67 /** @brief Backup file extension. */
  68 static const TCHAR BACKUP_FILE_EXT[] = _T("bak");
  69
  70 /////////////////////////////////////////////////////////////////////////////
  71 // CMergeApp
  72
  73 BEGIN_MESSAGE_MAP(CMergeApp, CWinApp)
  74         //{{AFX_MSG_MAP(CMergeApp)
  75         ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
  76         ON_COMMAND(ID_HELP, OnHelp)
  77         ON_COMMAND_EX_RANGE(ID_FILE_PROJECT_MRU_FIRST, ID_FILE_PROJECT_MRU_LAST, OnOpenRecentFile)
  78         ON_UPDATE_COMMAND_UI(ID_FILE_PROJECT_MRU_FIRST, CWinApp::OnUpdateRecentFileMenu)
  79         ON_COMMAND(ID_FILE_MERGINGMODE, OnMergingMode)
  80         ON_UPDATE_COMMAND_UI(ID_FILE_MERGINGMODE, OnUpdateMergingMode)
  81         ON_UPDATE_COMMAND_UI(ID_STATUS_MERGINGMODE, OnUpdateMergingStatus)
  82         //}}AFX_MSG_MAP
  83         // Standard file based document commands
  84         //ON_COMMAND(ID_FILE_NEW, CWinApp::OnFileNew)
  85         //ON_COMMAND(ID_FILE_OPEN, CWinApp::OnFileOpen)
  86         // Standard print setup command
  87         ON_COMMAND(ID_FILE_PRINT_SETUP, CWinApp::OnFilePrintSetup)
  88 END_MESSAGE_MAP()
  89
  90 /////////////////////////////////////////////////////////////////////////////
  91 // CMergeApp construction
  92
  93 CMergeApp::CMergeApp() :
  94   m_bNeedIdleTimer(false)
  95 , m_pOpenTemplate(nullptr)
  96 , m_pDiffTemplate(nullptr)
  97 , m_pHexMergeTemplate(nullptr)
  98 , m_pDirTemplate(nullptr)
  99 , m_mainThreadScripts(nullptr)
 100 , m_nLastCompareResult(0)
 101 , m_bNonInteractive(false)
 102 , m_pOptions(new CRegOptionsMgr())
 103 , m_pGlobalFileFilter(new FileFilterHelper())
 104 , m_nActiveOperations(0)
 105 , m_pLangDlg(new CLanguageSelect())
 106 , m_bEscShutdown(false)
 107 , m_bExitIfNoDiff(MergeCmdLineInfo::ExitNoDiff::Disabled)
 108 , m_pLineFilters(new LineFiltersList())
 109 , m_pSubstitutionFiltersList(new SubstitutionFiltersList())
 110 , m_pSyntaxColors(new SyntaxColors())
 111 , m_pMarkers(new CCrystalTextMarkers())
 112 , m_bMergingMode(false)
 113 {
 114         // add construction code here,
 115         // Place all significant initialization in InitInstance
 116 }
 117
 118 CMergeApp::~CMergeApp()
 119 {
 120         strdiff::Close();
 121 }
 122 /////////////////////////////////////////////////////////////////////////////
 123 // The one and only CMergeApp object
 124
 125 CMergeApp theApp;
 126
 127 /////////////////////////////////////////////////////////////////////////////
 128 // CMergeApp initialization
 129
 130 /**
 131  * @brief Initialize WinMerge application instance.
 132  * @return TRUE if application initialization succeeds (and we'll run it),
 133  *   FALSE if something failed and we exit the instance.
 134  * @todo We could handle these failure situations more gratefully, i.e. show
 135  *  at least some error message to the user..
 136  */
 137 BOOL CMergeApp::InitInstance()
 138 {
 139         // Prevents DLL hijacking
 140         HMODULE hLibrary = GetModuleHandle(_T("kernel32.dll"));
 141         BOOL (WINAPI *pfnSetSearchPathMode)(DWORD) = (BOOL (WINAPI *)(DWORD))GetProcAddress(hLibrary, "SetSearchPathMode");
 142         if (pfnSetSearchPathMode != nullptr)
 143                 pfnSetSearchPathMode(0x00000001L /*BASE_SEARCH_PATH_ENABLE_SAFE_SEARCHMODE*/ | 0x00008000L /*BASE_SEARCH_PATH_PERMANENT*/);
 144         BOOL (WINAPI *pfnSetDllDirectoryA)(LPCSTR) = (BOOL (WINAPI *)(LPCSTR))GetProcAddress(hLibrary, "SetDllDirectoryA");
 145         if (pfnSetDllDirectoryA != nullptr)
 146                 pfnSetDllDirectoryA("");
 147
 148         JumpList::SetCurrentProcessExplicitAppUserModelID(L"Thingamahoochie.WinMerge");
 149
 150         InitCommonControls();    // initialize common control library
 151         CWinApp::InitInstance(); // call parent class method
 152
 153         m_imageForInitializingGdiplus.Load((IStream*)nullptr); // initialize GDI+
 154
 155         // Runtime switch so programmer may set this in interactive debugger
 156         int dbgmem = 0;
 157         if (dbgmem)
 158         {
 159                 // get current setting
 160                 int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
 161                 // Keep freed memory blocks in the heap's linked list and mark them as freed
 162                 tmpFlag |= _CRTDBG_DELAY_FREE_MEM_DF;
 163                 // Call _CrtCheckMemory at every allocation and deallocation request.
 164                 // WARNING: This slows down WinMerge *A LOT*
 165                 tmpFlag |= _CRTDBG_CHECK_ALWAYS_DF;
 166                 // Set the new state for the flag
 167                 _CrtSetDbgFlag( tmpFlag );
 168         }
 169
 170         // CCrystalEdit Drag and Drop functionality needs AfxOleInit.
 171         if(!AfxOleInit())
 172         {
 173                 TRACE(_T("AfxOleInitFailed. OLE functionality disabled"));
 174         }
 175
 176         // Standard initialization
 177         // If you are not using these features and wish to reduce the size
 178         //  of your final executable, you should remove from the following
 179         //  the specific initialization routines you do not need.
 180
 181         // Revoke the standard OLE Message Filter to avoid drawing frame while loading files.
 182         COleMessageFilter* pOldFilter = AfxOleGetMessageFilter();
 183         pOldFilter->Revoke();
 184
 185         // Load registry keys from WinMerge.reg if existing WinMerge.reg
 186         env::LoadRegistryFromFile(paths::ConcatPath(env::GetProgPath(), _T("WinMerge.reg")));
 187
 188         // Parse command-line arguments.
 189 #ifdef TEST_WINMERGE
 190         MergeCmdLineInfo cmdInfo(_T(""));
 191 #else
 192         MergeCmdLineInfo cmdInfo(GetCommandLine());
 193 #endif
 194         if (cmdInfo.m_bNoPrefs)
 195                 m_pOptions->SetSerializing(false); // Turn off serializing to registry.
 196
 197         Options::CopyHKLMValues();
 198         Options::Init(m_pOptions.get()); // Implementation in OptionsInit.cpp
 199         ApplyCommandLineConfigOptions(cmdInfo);
 200         if (cmdInfo.m_sErrorMessages.size() > 0)
 201         {
 202                 if (AttachConsole(ATTACH_PARENT_PROCESS))
 203                 {
 204                         DWORD dwWritten;
 205                         for (auto& msg : cmdInfo.m_sErrorMessages)
 206                         {
 207                                 String line = _T("WinMerge: ") + msg + _T("\n");
 208                                 WriteConsole(GetStdHandle(STD_OUTPUT_HANDLE), line.c_str(), static_cast<DWORD>(line.length()), &dwWritten, nullptr);
 209                         }
 210                         FreeConsole();
 211                 }
 212         }
 213
 214         // Initialize temp folder
 215         SetupTempPath();
 216
 217         // If paths were given to commandline we consider this being an invoke from
 218         // commandline (from other application, shellextension etc).
 219         bool bCommandLineInvoke = cmdInfo.m_Files.GetSize() > 0;
 220
 221         // WinMerge registry settings are stored under HKEY_CURRENT_USER/Software/Thingamahoochie
 222         // This is the name of the company of the original author (Dean Grimm)
 223         SetRegistryKey(_T("Thingamahoochie"));
 224
 225         int nSingleInstance = cmdInfo.m_nSingleInstance.has_value() ?
 226                 *cmdInfo.m_nSingleInstance : GetOptionsMgr()->GetInt(OPT_SINGLE_INSTANCE);
 227
 228         // Create exclusion mutex name
 229         TCHAR szDesktopName[MAX_PATH] = _T("Win9xDesktop");
 230         DWORD dwLengthNeeded;
 231         GetUserObjectInformation(GetThreadDesktop(GetCurrentThreadId()), UOI_NAME,
 232                 szDesktopName, sizeof(szDesktopName), &dwLengthNeeded);
 233         TCHAR szMutexName[MAX_PATH + 40];
 234         // Combine window class name and desktop name to form a unique mutex name.
 235         // As the window class name is decorated to distinguish between ANSI and
 236         // UNICODE build, so will be the mutex name.
 237         wsprintf(szMutexName, _T("%s-%s"), CMainFrame::szClassName, szDesktopName);
 238         HANDLE hMutex = CreateMutex(nullptr, FALSE, szMutexName);
 239         if (hMutex != nullptr)
 240                 WaitForSingleObject(hMutex, INFINITE);
 241         if (nSingleInstance != 0 && GetLastError() == ERROR_ALREADY_EXISTS)
 242         {
 243                 // Activate previous instance and send commandline to it
 244                 HWND hWnd = FindWindow(CMainFrame::szClassName, nullptr);
 245                 if (hWnd != nullptr)
 246                 {
 247                         if (IsIconic(hWnd))
 248                                 ShowWindow(hWnd, SW_RESTORE);
 249                         SetForegroundWindow(GetLastActivePopup(hWnd));
 250                         LPTSTR cmdLine = GetCommandLine();
 251                         COPYDATASTRUCT data = { 0, (lstrlen(cmdLine) + 1) * sizeof(TCHAR), cmdLine};
 252                         if (::SendMessage(hWnd, WM_COPYDATA, NULL, (LPARAM)&data))
 253                         {
 254                                 ReleaseMutex(hMutex);
 255                                 CloseHandle(hMutex);
 256                                 if (nSingleInstance > 1)
 257                                 {
 258                                         DWORD dwProcessId = 0;
 259                                         GetWindowThreadProcessId(hWnd, &dwProcessId);
 260                                         HANDLE hProcess = OpenProcess(SYNCHRONIZE, FALSE, dwProcessId);
 261                                         if (hProcess)
 262                                                 WaitForSingleObject(hProcess, INFINITE);
 263                                 }
 264                                 return FALSE;
 265                         }
 266                 }
 267         }
 268
 269         LoadStdProfileSettings(GetOptionsMgr()->GetInt(OPT_MRU_MAX));  // Load standard INI file options (including MRU)
 270
 271         InitializeFileFilters();
 272
 273         // Read last used filter from registry
 274         // If filter fails to set, reset to default
 275         const String filterString = m_pOptions->GetString(OPT_FILEFILTER_CURRENT);
 276         bool bFilterSet = m_pGlobalFileFilter->SetFilter(filterString);
 277         if (!bFilterSet)
 278         {
 279                 String filter = m_pGlobalFileFilter->GetFilterNameOrMask();
 280                 m_pOptions->SaveOption(OPT_FILEFILTER_CURRENT, filter);
 281         }
 282
 283         charsets_init();
 284         UpdateCodepageModule();
 285
 286         FileTransform::g_UnpackerMode = static_cast<PLUGIN_MODE>(GetOptionsMgr()->GetInt(OPT_PLUGINS_UNPACKER_MODE));
 287         FileTransform::g_PredifferMode = static_cast<PLUGIN_MODE>(GetOptionsMgr()->GetInt(OPT_PLUGINS_PREDIFFER_MODE));
 288
 289         NONCLIENTMETRICS ncm = { sizeof NONCLIENTMETRICS };
 290         if (SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof NONCLIENTMETRICS, &ncm, 0))
 291         {
 292                 const int lfHeight = -MulDiv(9, CClientDC(CWnd::GetDesktopWindow()).GetDeviceCaps(LOGPIXELSY), 72);
 293                 if (abs(ncm.lfMenuFont.lfHeight) > abs(lfHeight))
 294                         ncm.lfMenuFont.lfHeight = lfHeight;
 295                 if (wcscmp(ncm.lfMenuFont.lfFaceName, L"Meiryo") == 0 || wcscmp(ncm.lfMenuFont.lfFaceName, L"\U000030e1\U000030a4\U000030ea\U000030aa"/* "Meiryo" in Japanese */) == 0)
 296                         wcscpy_s(ncm.lfMenuFont.lfFaceName, L"Meiryo UI");
 297                 m_fontGUI.CreateFontIndirect(&ncm.lfMenuFont);
 298         }
 299
 300         if (m_pSyntaxColors != nullptr)
 301                 Options::SyntaxColors::Init(GetOptionsMgr(), m_pSyntaxColors.get());
 302
 303         if (m_pMarkers != nullptr)
 304                 m_pMarkers->LoadFromRegistry();
 305
 306         CCrystalTextView::SetRenderingModeDefault(static_cast<CCrystalTextView::RENDERING_MODE>(GetOptionsMgr()->GetInt(OPT_RENDERING_MODE)));
 307
 308         if (m_pLineFilters != nullptr)
 309                 m_pLineFilters->Initialize(GetOptionsMgr());
 310
 311         // If there are no filters loaded, and there is filter string in previous
 312         // option string, import old filters to new place.
 313         if (m_pLineFilters->GetCount() == 0)
 314         {
 315                 String oldFilter = theApp.GetProfileString(_T("Settings"), _T("RegExps"));
 316                 if (!oldFilter.empty())
 317                         m_pLineFilters->Import(oldFilter);
 318         }
 319
 320         if (m_pSubstitutionFiltersList != nullptr)
 321                 m_pSubstitutionFiltersList->Initialize(GetOptionsMgr());
 322
 323         // Check if filter folder is set, and create it if not
 324         String pathMyFolders = GetOptionsMgr()->GetString(OPT_FILTER_USERPATH);
 325         if (pathMyFolders.empty())
 326         {
 327                 // No filter path, set it to default and make sure it exists.
 328                 pathMyFolders = GetOptionsMgr()->GetDefault<String>(OPT_FILTER_USERPATH);
 329                 GetOptionsMgr()->SaveOption(OPT_FILTER_USERPATH, pathMyFolders);
 330                 theApp.m_pGlobalFileFilter->SetUserFilterPath(pathMyFolders);
 331         }
 332         if (!paths::CreateIfNeeded(pathMyFolders))
 333         {
 334                 // Failed to create a folder, check it didn't already
 335                 // exist.
 336                 DWORD errCode = GetLastError();
 337                 if (errCode != ERROR_ALREADY_EXISTS)
 338                 {
 339                         // Failed to create a folder for filters, fallback to
 340                         // "My Documents"-folder. It is not worth the trouble to
 341                         // bother user about this or user more clever solutions.
 342                         GetOptionsMgr()->SaveOption(OPT_FILTER_USERPATH, env::GetMyDocuments());
 343                 }
 344         }
 345
 346         strdiff::Init(); // String diff init
 347         strdiff::SetBreakChars(GetOptionsMgr()->GetString(OPT_BREAK_SEPARATORS).c_str());
 348
 349         m_bMergingMode = GetOptionsMgr()->GetBool(OPT_MERGE_MODE);
 350
 351         // Initialize i18n (multiple language) support
 352
 353         m_pLangDlg->InitializeLanguage((WORD)GetOptionsMgr()->GetInt(OPT_SELECTED_LANGUAGE));
 354
 355         m_mainThreadScripts = new CAssureScriptsForThread;
 356
 357         // Register the application's document templates.  Document templates
 358         //  serve as the connection between documents, frame windows and views.
 359
 360         // Open view
 361         m_pOpenTemplate = new CMultiDocTemplate(
 362                 IDR_MAINFRAME,
 363                 RUNTIME_CLASS(COpenDoc),
 364                 RUNTIME_CLASS(COpenFrame), // custom MDI child frame
 365                 RUNTIME_CLASS(COpenView));
 366         AddDocTemplate(m_pOpenTemplate);
 367
 368         // Merge Edit view
 369         m_pDiffTemplate = new CMultiDocTemplate(
 370                 IDR_MERGEDOCTYPE,
 371                 RUNTIME_CLASS(CMergeDoc),
 372                 RUNTIME_CLASS(CMergeEditFrame), // custom MDI child frame
 373                 RUNTIME_CLASS(CMergeEditSplitterView));
 374         AddDocTemplate(m_pDiffTemplate);
 375
 376         // Merge Edit view
 377         m_pHexMergeTemplate = new CMultiDocTemplate(
 378                 IDR_MERGEDOCTYPE,
 379                 RUNTIME_CLASS(CHexMergeDoc),
 380                 RUNTIME_CLASS(CHexMergeFrame), // custom MDI child frame
 381                 RUNTIME_CLASS(CHexMergeView));
 382         AddDocTemplate(m_pHexMergeTemplate);
 383
 384         // Directory view
 385         m_pDirTemplate = new CMultiDocTemplate(
 386                 IDR_DIRDOCTYPE,
 387                 RUNTIME_CLASS(CDirDoc),
 388                 RUNTIME_CLASS(CDirFrame), // custom MDI child frame
 389                 RUNTIME_CLASS(CDirView));
 390         AddDocTemplate(m_pDirTemplate);
 391
 392         // create main MDI Frame window
 393         CMainFrame* pMainFrame = new CMainFrame;
 394         if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
 395         {
 396                 if (hMutex != nullptr)
 397                 {
 398                         ReleaseMutex(hMutex);
 399                         CloseHandle(hMutex);
 400                 }
 401                 return FALSE;
 402         }
 403         m_pMainWnd = pMainFrame;
 404
 405         // Init menus -- hMenuDefault is for MainFrame
 406         pMainFrame->m_hMenuDefault = pMainFrame->NewDefaultMenu();
 407
 408         // Set the menu
 409         // Note : for Windows98 compatibility, use FromHandle and not Attach/Detach
 410         CMenu * pNewMenu = CMenu::FromHandle(pMainFrame->m_hMenuDefault);
 411         pMainFrame->MDISetMenu(pNewMenu, nullptr);
 412
 413         // The main window has been initialized, so activate it.
 414         pMainFrame->ActivateFrame(cmdInfo.m_nCmdShow);
 415
 416         // Since this function actually opens paths for compare it must be
 417         // called after initializing CMainFrame!
 418         bool bContinue = true;
 419         if (!ParseArgsAndDoOpen(cmdInfo, pMainFrame) && bCommandLineInvoke)
 420                 bContinue = false;
 421
 422         if (hMutex != nullptr)
 423                 ReleaseMutex(hMutex);
 424
 425         // If user wants to cancel the compare, close WinMerge
 426         if (!bContinue)
 427         {
 428                 pMainFrame->PostMessage(WM_CLOSE, 0, 0);
 429         }
 430
 431 #ifdef TEST_WINMERGE
 432         WinMergeTest::TestAll();
 433 #endif
 434
 435         return bContinue;
 436 }
 437
 438 static void OpenContributersFile(int&)
 439 {
 440         theApp.OpenFileToExternalEditor(paths::ConcatPath(env::GetProgPath(), ContributorsPath));
 441 }
 442
 443 static void OpenUrl(int&)
 444 {
 445         shell::Open(WinMergeURL);
 446 }
 447
 448 // App command to run the dialog
 449 void CMergeApp::OnAppAbout()
 450 {
 451         CAboutDlg aboutDlg;
 452         aboutDlg.m_onclick_contributers += Poco::delegate(OpenContributersFile);
 453         aboutDlg.m_onclick_url += Poco::delegate(OpenUrl);
 454         aboutDlg.DoModal();
 455         aboutDlg.m_onclick_contributers.clear();
 456         aboutDlg.m_onclick_url.clear();
 457 }
 458
 459 /////////////////////////////////////////////////////////////////////////////
 460 // CMergeApp commands
 461
 462 /**
 463  * @brief Called when application is about to exit.
 464  * This functions is called when application is exiting, so this is
 465  * good place to do cleanups.
 466  * @return Application's exit value (returned from WinMain()).
 467  */
 468 int CMergeApp::ExitInstance()
 469 {
 470         charsets_cleanup();
 471
 472         //  Save registry keys if existing WinMerge.reg
 473         env::SaveRegistryToFile(paths::ConcatPath(env::GetProgPath(), _T("WinMerge.reg")), RegDir);
 474
 475         // Remove tempfolder
 476         const String temp = env::GetTemporaryPath();
 477         ClearTempfolder(temp);
 478
 479         // Cleanup left over tempfiles from previous instances.
 480         // Normally this should not need to do anything - but if for some reason
 481         // WinMerge did not delete temp files this makes sure they are removed.
 482         CleanupWMtemp();
 483
 484         delete m_mainThreadScripts;
 485         CWinApp::ExitInstance();
 486         return 0;
 487 }
 488
 489 int CMergeApp::DoMessageBox(LPCTSTR lpszPrompt, UINT nType, UINT nIDPrompt)
 490 {
 491         // This is a convenient point for breakpointing !!!
 492
 493         // Create a handle to store the parent window of the message box.
 494         CWnd* pParentWnd = CWnd::GetActiveWindow();
 495
 496         // Check whether an active window was retrieved successfully.
 497         if (pParentWnd == nullptr)
 498         {
 499                 // Try to retrieve a handle to the last active popup.
 500                 CWnd * mainwnd = GetMainWnd();
 501                 if (mainwnd != nullptr)
 502                         pParentWnd = mainwnd->GetLastActivePopup();
 503         }
 504
 505         // Use our own message box implementation, which adds the
 506         // do not show again checkbox, and implements it on subsequent calls
 507         // (if caller set the style)
 508
 509         if (m_bNonInteractive)
 510         {
 511                 if (AttachConsole(ATTACH_PARENT_PROCESS))
 512                 {
 513                         DWORD dwWritten;
 514                         String line = _T("WinMerge: ") + String(lpszPrompt) + _T("\n");
 515                         WriteConsole(GetStdHandle(STD_OUTPUT_HANDLE), line.c_str(), static_cast<DWORD>(line.length()), &dwWritten, nullptr);
 516                         FreeConsole();
 517                 }
 518                 return IDCANCEL;
 519         }
 520
 521         // Create the message box dialog.
 522         CMessageBoxDialog dlgMessage(pParentWnd, lpszPrompt, _T(""), nType | MB_RIGHT_ALIGN,
 523                 nIDPrompt);
 524
 525         if (m_pMainWnd->IsIconic())
 526                 m_pMainWnd->ShowWindow(SW_RESTORE);
 527
 528         // Display the message box dialog and return the result.
 529         return static_cast<int>(dlgMessage.DoModal());
 530 }
 531
 532 bool CMergeApp::IsReallyIdle() const
 533 {
 534         bool idle = true;
 535         POSITION pos = m_pDirTemplate->GetFirstDocPosition();
 536         while (pos != nullptr)
 537         {
 538                 CDirDoc *pDirDoc = static_cast<CDirDoc *>(m_pDirTemplate->GetNextDoc(pos));
 539                 if (const CompareStats *pCompareStats = pDirDoc->GetCompareStats())
 540                 {
 541                         if (!pCompareStats->IsCompareDone() || pDirDoc->GetGeneratingReport())
 542                                 idle = false;
 543                 }
 544         }
 545     return idle;
 546 }
 547
 548 BOOL CMergeApp::OnIdle(LONG lCount)
 549 {
 550         if (CWinApp::OnIdle(lCount))
 551                 return TRUE;
 552
 553         // If anyone has requested notification when next idle occurs, send it
 554         if (m_bNeedIdleTimer)
 555         {
 556                 m_bNeedIdleTimer = false;
 557                 m_pMainWnd->SendMessageToDescendants(WM_TIMER, IDLE_TIMER, lCount, TRUE, FALSE);
 558         }
 559
 560         if (m_bNonInteractive && IsReallyIdle())
 561                 m_pMainWnd->PostMessage(WM_CLOSE, 0, 0);
 562
 563         static_cast<CRegOptionsMgr *>(GetOptionsMgr())->CloseKeys();
 564
 565         return FALSE;
 566 }
 567
 568 /**
 569  * @brief Load any known file filters.
 570  *
 571  * This function loads filter files from paths we know contain them.
 572  * @note User's filter location may not be set yet.
 573  */
 574 void CMergeApp::InitializeFileFilters()
 575 {
 576         String filterPath = GetOptionsMgr()->GetString(OPT_FILTER_USERPATH);
 577
 578         if (!filterPath.empty())
 579         {
 580                 m_pGlobalFileFilter->SetUserFilterPath(filterPath);
 581         }
 582         m_pGlobalFileFilter->LoadAllFileFilters();
 583 }
 584
 585 void CMergeApp::ApplyCommandLineConfigOptions(MergeCmdLineInfo& cmdInfo)
 586 {
 587         if (cmdInfo.m_bNoPrefs)
 588                 m_pOptions->SetSerializing(false); // Turn off serializing to registry.
 589
 590         for (const auto& it : cmdInfo.m_Options)
 591         {
 592                 if (m_pOptions->Set(it.first, it.second) == COption::OPT_NOTFOUND)
 593                 {
 594                         String longname = m_pOptions->ExpandShortName(it.first);
 595                         if (!longname.empty())
 596                         {
 597                                 m_pOptions->Set(longname, it.second);
 598                         }
 599                         else
 600                         {
 601                                 cmdInfo.m_sErrorMessages.push_back(strutils::format_string1(_T("Invalid key '%1' specified in /config option"), it.first));
 602                         }
 603                 }
 604         }
 605 }
 606
 607 /** @brief Read command line arguments and open files for comparison.
 608  *
 609  * The name of the function is a legacy code from the time that this function
 610  * actually parsed the command line. Today the parsing is done using the
 611  * MergeCmdLineInfo class.
 612  * @param [in] cmdInfo Commandline parameters info.
 613  * @param [in] pMainFrame Pointer to application main frame.
 614  * @return `true` if we opened the compare, `false` if the compare was canceled.
 615  */
 616 bool CMergeApp::ParseArgsAndDoOpen(MergeCmdLineInfo& cmdInfo, CMainFrame* pMainFrame)
 617 {
 618         bool bCompared = false;
 619         String strDesc[3];
 620         std::unique_ptr<PackingInfo> infoUnpacker;
 621
 622         m_bNonInteractive = cmdInfo.m_bNonInteractive;
 623
 624         if (!cmdInfo.m_sUnpacker.empty())
 625         {
 626                 infoUnpacker.reset(new PackingInfo(PLUGIN_MODE::PLUGIN_MANUAL));
 627                 infoUnpacker->m_PluginName = cmdInfo.m_sUnpacker;
 628         }
 629
 630         // Set the global file filter.
 631         if (!cmdInfo.m_sFileFilter.empty())
 632         {
 633                 m_pGlobalFileFilter->SetFilter(cmdInfo.m_sFileFilter);
 634         }
 635
 636         // Set codepage.
 637         if (cmdInfo.m_nCodepage)
 638         {
 639                 UpdateDefaultCodepage(2,cmdInfo.m_nCodepage);
 640         }
 641
 642         // Set compare method
 643         if (cmdInfo.m_nCompMethod.has_value())
 644                 GetOptionsMgr()->Set(OPT_CMP_METHOD, *cmdInfo.m_nCompMethod);
 645
 646         // Unless the user has requested to see WinMerge's usage open files for
 647         // comparison.
 648         if (cmdInfo.m_bShowUsage)
 649         {
 650                 ShowHelp(CommandLineHelpLocation);
 651         }
 652         else
 653         {
 654                 // Set the required information we need from the command line:
 655
 656                 m_bExitIfNoDiff = cmdInfo.m_bExitIfNoDiff;
 657                 m_bEscShutdown = cmdInfo.m_bEscShutdown;
 658
 659                 m_strSaveAsPath = cmdInfo.m_sOutputpath;
 660
 661                 strDesc[0] = cmdInfo.m_sLeftDesc;
 662                 if (cmdInfo.m_Files.GetSize() < 3)
 663                 {
 664                         strDesc[1] = cmdInfo.m_sRightDesc;
 665                 }
 666                 else
 667                 {
 668                         strDesc[1] = cmdInfo.m_sMiddleDesc;
 669                         strDesc[2] = cmdInfo.m_sRightDesc;
 670                 }
 671
 672                 if (cmdInfo.m_Files.GetSize() > 2)
 673                 {
 674                         cmdInfo.m_dwLeftFlags |= FFILEOPEN_CMDLINE;
 675                         cmdInfo.m_dwMiddleFlags |= FFILEOPEN_CMDLINE;
 676                         cmdInfo.m_dwRightFlags |= FFILEOPEN_CMDLINE;
 677                         DWORD dwFlags[3] = {cmdInfo.m_dwLeftFlags, cmdInfo.m_dwMiddleFlags, cmdInfo.m_dwRightFlags};
 678                         bCompared = pMainFrame->DoFileOpen(&cmdInfo.m_Files,
 679                                 dwFlags, strDesc, cmdInfo.m_sReportFile, cmdInfo.m_bRecurse, nullptr,
 680                                 cmdInfo.m_sPreDiffer, infoUnpacker.get());
 681                 }
 682                 else if (cmdInfo.m_Files.GetSize() > 1)
 683                 {
 684                         DWORD dwFlags[3] = {cmdInfo.m_dwLeftFlags, cmdInfo.m_dwRightFlags, FFILEOPEN_NONE};
 685                         bCompared = pMainFrame->DoFileOpen(&cmdInfo.m_Files,
 686                                 dwFlags, strDesc, cmdInfo.m_sReportFile, cmdInfo.m_bRecurse, nullptr,
 687                                 cmdInfo.m_sPreDiffer, infoUnpacker.get());
 688                 }
 689                 else if (cmdInfo.m_Files.GetSize() == 1)
 690                 {
 691                         String sFilepath = cmdInfo.m_Files[0];
 692                         if (cmdInfo.m_bSelfCompare)
 693                         {
 694                                 strDesc[0] = cmdInfo.m_sLeftDesc;
 695                                 strDesc[1] = cmdInfo.m_sRightDesc;
 696                                 bCompared = pMainFrame->DoSelfCompare(IDOK, sFilepath, strDesc);
 697                         }
 698                         else if (IsProjectFile(sFilepath))
 699                         {
 700                                 bCompared = LoadAndOpenProjectFile(sFilepath);
 701                         }
 702                         else if (IsConflictFile(sFilepath))
 703                         {
 704                                 //For a conflict file, load the descriptions in their respective positions:  (they will be reordered as needed)
 705                                 strDesc[0] = cmdInfo.m_sLeftDesc;
 706                                 strDesc[1] = cmdInfo.m_sMiddleDesc;
 707                                 strDesc[2] = cmdInfo.m_sRightDesc;
 708                                 bCompared = pMainFrame->DoOpenConflict(sFilepath, strDesc);
 709                         }
 710                         else
 711                         {
 712                                 DWORD dwFlags[3] = {cmdInfo.m_dwLeftFlags, cmdInfo.m_dwRightFlags, FFILEOPEN_NONE};
 713                                 bCompared = pMainFrame->DoFileOpen(&cmdInfo.m_Files,
 714                                         dwFlags, strDesc, cmdInfo.m_sReportFile, cmdInfo.m_bRecurse, nullptr,
 715                                         cmdInfo.m_sPreDiffer, infoUnpacker.get());
 716                         }
 717                 }
 718                 else if (cmdInfo.m_Files.GetSize() == 0) // if there are no input args, we can check the display file dialog flag
 719                 {
 720                         bool showFiles = m_pOptions->GetBool(OPT_SHOW_SELECT_FILES_AT_STARTUP);
 721                         if (showFiles)
 722                                 pMainFrame->DoFileOpen();
 723                 }
 724         }
 725         return bCompared;
 726 }
 727
 728 void CMergeApp::UpdateDefaultCodepage(int cpDefaultMode, int cpCustomCodepage)
 729 {
 730         int wLangId;
 731
 732         switch (cpDefaultMode)
 733         {
 734                 case 0:
 735                         ucr::setDefaultCodepage(GetACP());
 736                         break;
 737                 case 1:
 738                         TCHAR buff[32];
 739                         wLangId = GetLangId();
 740                         if (GetLocaleInfo(wLangId, LOCALE_IDEFAULTANSICODEPAGE, buff, sizeof(buff)/sizeof(buff[0])))
 741                                 ucr::setDefaultCodepage(_ttol(buff));
 742                         else
 743                                 ucr::setDefaultCodepage(GetACP());
 744                         break;
 745                 case 2:
 746                         ucr::setDefaultCodepage(cpCustomCodepage);
 747                         break;
 748                 default:
 749                         // no other valid option
 750                         assert (false);
 751                         ucr::setDefaultCodepage(GetACP());
 752         }
 753 }
 754
 755 /**
 756  * @brief Send current option settings into codepage module
 757  */
 758 void CMergeApp::UpdateCodepageModule()
 759 {
 760         // Get current codepage settings from the options module
 761         // and push them into the codepage module
 762         UpdateDefaultCodepage(GetOptionsMgr()->GetInt(OPT_CP_DEFAULT_MODE), GetOptionsMgr()->GetInt(OPT_CP_DEFAULT_CUSTOM));
 763 }
 764
 765 /** @brief Open help from mainframe when user presses F1*/
 766 void CMergeApp::OnHelp()
 767 {
 768         ShowHelp();
 769 }
 770
 771 /**
 772  * @brief Open given file to external editor specified in options.
 773  * @param [in] file Full path to file to open.
 774  *
 775  * Opens file to defined (in Options/system), Notepad by default,
 776  * external editor. Path is decorated with quotation marks if needed
 777  * (contains spaces). Also '$file' in editor path is replaced by
 778  * filename to open.
 779  * @param [in] file Full path to file to open.
 780  * @param [in] nLineNumber Line number to go to.
 781  */
 782 void CMergeApp::OpenFileToExternalEditor(const String& file, int nLineNumber/* = 1*/)
 783 {
 784         String sCmd = GetOptionsMgr()->GetString(OPT_EXT_EDITOR_CMD);
 785         String sFile(file);
 786         strutils::replace(sCmd, _T("$linenum"), strutils::to_str(nLineNumber));
 787
 788         size_t nIndex = sCmd.find(_T("$file"));
 789         if (nIndex != String::npos)
 790         {
 791                 sFile.insert(0, _T("\""));
 792                 strutils::replace(sCmd, _T("$file"), sFile);
 793                 nIndex = sCmd.find(' ', nIndex + sFile.length());
 794                 if (nIndex != String::npos)
 795                         sCmd.insert(nIndex, _T("\""));
 796                 else
 797                         sCmd += '"';
 798         }
 799         else
 800         {
 801                 sCmd += _T(" \"");
 802                 sCmd += sFile;
 803                 sCmd += _T("\"");
 804         }
 805
 806         bool retVal = false;
 807         STARTUPINFO stInfo = { sizeof STARTUPINFO };
 808         PROCESS_INFORMATION processInfo;
 809
 810         retVal = !!CreateProcess(nullptr, (LPTSTR)sCmd.c_str(),
 811                 nullptr, nullptr, FALSE, CREATE_DEFAULT_ERROR_MODE, nullptr, nullptr,
 812                 &stInfo, &processInfo);
 813
 814         if (!retVal)
 815         {
 816                 // Error invoking external editor
 817                 String msg = strutils::format_string1(_("Failed to execute external editor: %1"), sCmd);
 818                 AfxMessageBox(msg.c_str(), MB_ICONSTOP);
 819         }
 820         else
 821         {
 822                 CloseHandle(processInfo.hThread);
 823                 CloseHandle(processInfo.hProcess);
 824         }
 825 }
 826
 827 /**
 828  * @brief Show Help - this is for opening help from outside mainframe.
 829  * @param [in] helpLocation Location inside help, if `nullptr` main help is opened.
 830  */
 831 void CMergeApp::ShowHelp(LPCTSTR helpLocation /*= nullptr*/)
 832 {
 833         String name, ext;
 834         LANGID LangId = GetLangId();
 835         paths::SplitFilename(m_pLangDlg->GetFileName(LangId), nullptr, &name, &ext);
 836         String sPath = paths::ConcatPath(env::GetProgPath(), strutils::format(DocsPath, name.c_str()));
 837         if (paths::DoesPathExist(sPath) != paths::IS_EXISTING_FILE)
 838                 sPath = paths::ConcatPath(env::GetProgPath(), strutils::format(DocsPath, _T("")));
 839         if (helpLocation == nullptr)
 840         {
 841                 if (paths::DoesPathExist(sPath) == paths::IS_EXISTING_FILE)
 842                         ::HtmlHelp(nullptr, sPath.c_str(), HH_DISPLAY_TOC, NULL);
 843                 else
 844                         shell::Open(DocsURL);
 845         }
 846         else
 847         {
 848                 if (paths::DoesPathExist(sPath) == paths::IS_EXISTING_FILE)
 849                 {
 850                         sPath += helpLocation;
 851                         ::HtmlHelp(nullptr, sPath.c_str(), HH_DISPLAY_TOPIC, NULL);
 852                 }
 853         }
 854 }
 855
 856 /**
 857  * @brief Creates backup before file is saved or copied over.
 858  * This function handles formatting correct path and filename for
 859  * backup file. Formatting is done based on several options available
 860  * for users in Options/Backups dialog. After path is formatted, file
 861  * is simply just copied. Not much error checking, just if copying
 862  * succeeded or failed.
 863  * @param [in] bFolder Are we creating backup in folder compare?
 864  * @param [in] pszPath Full path to file to backup.
 865  * @return `true` if backup succeeds, or isn't just done.
 866  */
 867 bool CMergeApp::CreateBackup(bool bFolder, const String& pszPath)
 868 {
 869         // If user doesn't want to backups in folder compare, return
 870         // success so operations don't abort.
 871         if (bFolder && !(GetOptionsMgr()->GetBool(OPT_BACKUP_FOLDERCMP)))
 872                 return true;
 873         // Likewise if user doesn't want backups in file compare
 874         else if (!bFolder && !(GetOptionsMgr()->GetBool(OPT_BACKUP_FILECMP)))
 875                 return true;
 876
 877         // create backup copy of file if destination file exists
 878         if (paths::DoesPathExist(pszPath) == paths::IS_EXISTING_FILE)
 879         {
 880                 String bakPath;
 881                 String path;
 882                 String filename;
 883                 String ext;
 884
 885                 paths::SplitFilename(paths::GetLongPath(pszPath), &path, &filename, &ext);
 886
 887                 // Determine backup folder
 888                 if (GetOptionsMgr()->GetInt(OPT_BACKUP_LOCATION) ==
 889                         PropBackups::FOLDER_ORIGINAL)
 890                 {
 891                         // Put backups to same folder than original file
 892                         bakPath = path;
 893                 }
 894                 else if (GetOptionsMgr()->GetInt(OPT_BACKUP_LOCATION) ==
 895                         PropBackups::FOLDER_GLOBAL)
 896                 {
 897                         // Put backups to global folder defined in options
 898                         bakPath = GetOptionsMgr()->GetString(OPT_BACKUP_GLOBALFOLDER);
 899                         if (bakPath.empty())
 900                                 bakPath = path;
 901                         else
 902                                 bakPath = paths::GetLongPath(bakPath);
 903                 }
 904                 else
 905                 {
 906                         _RPTF0(_CRT_ERROR, "Unknown backup location!");
 907                 }
 908
 909                 bool success = false;
 910                 if (GetOptionsMgr()->GetBool(OPT_BACKUP_ADD_BAK))
 911                 {
 912                         // Don't add dot if there is no existing extension
 913                         if (ext.size() > 0)
 914                                 ext += _T(".");
 915                         ext += BACKUP_FILE_EXT;
 916                 }
 917
 918                 // Append time to filename if wanted so
 919                 // NOTE just adds timestamp at the moment as I couldn't figure out
 920                 // nice way to add a real time (invalid chars etc).
 921                 if (GetOptionsMgr()->GetBool(OPT_BACKUP_ADD_TIME))
 922                 {
 923                         struct tm tm;
 924                         time_t curtime = 0;
 925                         time(&curtime);
 926                         ::localtime_s(&tm, &curtime);
 927                         CString timestr;
 928                         timestr.Format(_T("%04d%02d%02d%02d%02d%02d"), tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
 929                         filename += _T("-");
 930                         filename += timestr;
 931                 }
 932
 933                 // Append filename and extension (+ optional .bak) to path
 934                 if ((bakPath.length() + filename.length() + ext.length())
 935                         < MAX_PATH_FULL)
 936                 {
 937                         success = true;
 938                         bakPath = paths::ConcatPath(bakPath, filename);
 939                         bakPath += _T(".");
 940                         bakPath += ext;
 941                 }
 942
 943                 if (success)
 944                 {
 945                         success = !!CopyFileW(TFile(pszPath).wpath().c_str(), TFile(bakPath).wpath().c_str(), FALSE);
 946                 }
 947
 948                 if (!success)
 949                 {
 950                         String msg = strutils::format_string1(
 951                                 _("Unable to backup original file:\n%1\n\nContinue anyway?"),
 952                                 pszPath);
 953                         if (AfxMessageBox(msg.c_str(), MB_YESNO | MB_ICONWARNING | MB_DONT_ASK_AGAIN) != IDYES)
 954                                 return false;
 955                 }
 956                 return true;
 957         }
 958
 959         // we got here because we're either not backing up of there was nothing to backup
 960         return true;
 961 }
 962
 963 /**
 964  * @brief Checks if path (file/folder) is read-only and asks overwriting it.
 965  *
 966  * @param strSavePath [in,out] Path where to save (file or folder)
 967  * @param bMultiFile [in] Single file or multiple files/folder
 968  * @param bApplyToAll [in,out] Apply last user selection for all items?
 969  * @return Users selection:
 970  * - IDOK: Item was not readonly, no actions
 971  * - IDYES/IDYESTOALL: Overwrite readonly item
 972  * - IDNO: User selected new filename (single file) or user wants to skip
 973  * - IDCANCEL: Cancel operation
 974  * @sa CMainFrame::SyncFileToVCS()
 975  * @sa CMergeDoc::DoSave()
 976  */
 977 int CMergeApp::HandleReadonlySave(String& strSavePath, bool bMultiFile,
 978                 bool &bApplyToAll)
 979 {
 980         CFileStatus status;
 981         int nRetVal = IDOK;
 982         bool bFileRO = false;
 983         bool bFileExists = false;
 984         String s;
 985         String str;
 986         CString title;
 987
 988         if (!strSavePath.empty())
 989         {
 990                 try
 991                 {
 992                         TFile file(strSavePath);
 993                         bFileExists = file.exists();
 994                         if (bFileExists)
 995                                 bFileRO = !file.canWrite();
 996                 }
 997                 catch (...)
 998                 {
 999                 }
1000         }
1001
1002         if (bFileExists && bFileRO)
1003         {
1004                 UINT userChoice = 0;
1005
1006                 // Don't ask again if its already asked
1007                 if (bApplyToAll)
1008                         userChoice = IDYES;
1009                 else
1010                 {
1011                         // Prompt for user choice
1012                         if (bMultiFile)
1013                         {
1014                                 // Multiple files or folder
1015                                 str = strutils::format_string1(_("%1\nis marked read-only. Would you like to override the read-only item?"), strSavePath);
1016                                 userChoice = AfxMessageBox(str.c_str(), MB_YESNOCANCEL |
1017                                                 MB_ICONWARNING | MB_DEFBUTTON3 | MB_DONT_ASK_AGAIN |
1018                                                 MB_YES_TO_ALL, IDS_SAVEREADONLY_MULTI);
1019                         }
1020                         else
1021                         {
1022                                 // Single file
1023                                 str = strutils::format_string1(_("%1 is marked read-only. Would you like to override the read-only file? (No to save as new filename.)"), strSavePath);
1024                                 userChoice = AfxMessageBox(str.c_str(), MB_YESNOCANCEL |
1025                                                 MB_ICONWARNING | MB_DEFBUTTON2 | MB_DONT_ASK_AGAIN,
1026                                                 IDS_SAVEREADONLY_FMT);
1027                         }
1028                 }
1029                 switch (userChoice)
1030                 {
1031                 // Overwrite read-only file
1032                 case IDYESTOALL:
1033                         bApplyToAll = true;  // Don't ask again (no break here)
1034                         [[fallthrough]];
1035                 case IDYES:
1036                         CFile::GetStatus(strSavePath.c_str(), status);
1037                         status.m_mtime = 0;             // Avoid unwanted changes
1038                         status.m_attribute &= ~CFile::readOnly;
1039                         CFile::SetStatus(strSavePath.c_str(), status);
1040                         nRetVal = IDYES;
1041                         break;
1042
1043                 // Save to new filename (single) /skip this item (multiple)
1044                 case IDNO:
1045                         if (!bMultiFile)
1046                         {
1047                                 if (SelectFile(AfxGetMainWnd()->GetSafeHwnd(), s, false, strSavePath.c_str()))
1048                                 {
1049                                         strSavePath = s;
1050                                         nRetVal = IDNO;
1051                                 }
1052                                 else
1053                                         nRetVal = IDCANCEL;
1054                         }
1055                         else
1056                                 nRetVal = IDNO;
1057                         break;
1058
1059                 // Cancel saving
1060                 case IDCANCEL:
1061                         nRetVal = IDCANCEL;
1062                         break;
1063                 }
1064         }
1065         return nRetVal;
1066 }
1067
1068 /**
1069  * @brief Is specified file a project file?
1070  * @param [in] filepath Full path to file to check.
1071  * @return true if file is a projectfile.
1072  */
1073 bool CMergeApp::IsProjectFile(const String& filepath) const
1074 {
1075         String ext;
1076         paths::SplitFilename(filepath, nullptr, nullptr, &ext);
1077         if (strutils::compare_nocase(ext, ProjectFile::PROJECTFILE_EXT) == 0)
1078                 return true;
1079         else
1080                 return false;
1081 }
1082
1083 bool CMergeApp::LoadProjectFile(const String& sProject, ProjectFile &project)
1084 {
1085         if (sProject.empty())
1086                 return false;
1087
1088         try
1089         {
1090         project.Read(sProject);
1091         }
1092         catch (Poco::Exception& e)
1093         {
1094                 String sErr = _("Unknown error attempting to open project file.");
1095                 sErr += ucr::toTString(e.displayText());
1096                 String msg = strutils::format_string2(_("Cannot open file\n%1\n\n%2"), sProject, sErr);
1097                 AfxMessageBox(msg.c_str(), MB_ICONSTOP);
1098                 return false;
1099         }
1100
1101         return true;
1102 }
1103
1104 bool CMergeApp::SaveProjectFile(const String& sProject, const ProjectFile &project)
1105 {
1106         try
1107         {
1108                 project.Save(sProject);
1109         }
1110         catch (Poco::Exception& e)
1111         {
1112                 String sErr = _("Unknown error attempting to save project file.");
1113                 sErr += ucr::toTString(e.displayText());
1114                 String msg = strutils::format_string2(_("Cannot open file\n%1\n\n%2"), sProject, sErr);
1115                 AfxMessageBox(msg.c_str(), MB_ICONSTOP);
1116                 return false;
1117         }
1118
1119         return true;
1120 }
1121
1122 /**
1123  * @brief Read project and perform comparison specified
1124  * @param [in] sProject Full path to project file.
1125  * @return `true` if loading project file and starting compare succeeded.
1126  */
1127 bool CMergeApp::LoadAndOpenProjectFile(const String& sProject, const String& sReportFile)
1128 {
1129         ProjectFile project;
1130         if (!LoadProjectFile(sProject, project))
1131                 return false;
1132
1133         bool rtn = true;
1134         for (auto& projItem : project.Items())
1135         {
1136                 PathContext tFiles;
1137                 bool bRecursive = false;
1138                 projItem.GetPaths(tFiles, bRecursive);
1139                 for (int i = 0; i < tFiles.GetSize(); ++i)
1140                 {
1141                         if (!paths::IsPathAbsolute(tFiles[i]))
1142                         {
1143                                 String sProjectDir = paths::GetParentPath(sProject);
1144                                 if (tFiles[i].substr(0, 1) == _T("\\"))
1145                                 {
1146                                         if (sProjectDir.length() > 1 && sProjectDir[1] == ':')
1147                                                 tFiles[i] = paths::ConcatPath(sProjectDir.substr(0, 2), tFiles[i]);
1148                                 }
1149                                 else
1150                                         tFiles[i] = paths::ConcatPath(sProjectDir, tFiles[i]);
1151                         }
1152                 }
1153                 bool bLeftReadOnly = projItem.GetLeftReadOnly();
1154                 bool bMiddleReadOnly = projItem.GetMiddleReadOnly();
1155                 bool bRightReadOnly = projItem.GetRightReadOnly();
1156                 if (projItem.HasFilter())
1157                 {
1158                         String filter = projItem.GetFilter();
1159                         filter = strutils::trim_ws(filter);
1160                         m_pGlobalFileFilter->SetFilter(filter);
1161                 }
1162                 if (projItem.HasSubfolders())
1163                         bRecursive = projItem.GetSubfolders() > 0;
1164
1165                 DWORD dwFlags[3] = {
1166                         static_cast<DWORD>(tFiles.GetPath(0).empty() ? FFILEOPEN_NONE : FFILEOPEN_PROJECT),
1167                         static_cast<DWORD>(tFiles.GetPath(1).empty() ? FFILEOPEN_NONE : FFILEOPEN_PROJECT),
1168                         static_cast<DWORD>(tFiles.GetPath(2).empty() ? FFILEOPEN_NONE : FFILEOPEN_PROJECT)
1169                 };
1170                 if (bLeftReadOnly)
1171                         dwFlags[0] |= FFILEOPEN_READONLY;
1172                 if (tFiles.GetSize() == 2)
1173                 {
1174                         if (bRightReadOnly)
1175                                 dwFlags[1] |= FFILEOPEN_READONLY;
1176                 }
1177                 else
1178                 {
1179                         if (bMiddleReadOnly)
1180                                 dwFlags[1] |= FFILEOPEN_READONLY;
1181                         if (bRightReadOnly)
1182                                 dwFlags[2] |= FFILEOPEN_READONLY;
1183                 }
1184
1185                 GetOptionsMgr()->SaveOption(OPT_CMP_INCLUDE_SUBDIRS, bRecursive);
1186
1187                 rtn &= GetMainFrame()->DoFileOpen(&tFiles, dwFlags, nullptr, sReportFile, bRecursive);
1188         }
1189
1190         AddToRecentProjectsMRU(sProject.c_str());
1191         return rtn;
1192 }
1193
1194 /**
1195  * @brief Return windows language ID of current WinMerge GUI language
1196  */
1197 WORD CMergeApp::GetLangId() const
1198 {
1199         return m_pLangDlg->GetLangId();
1200 }
1201
1202 /**
1203  * @brief Lang aware version of CStatusBar::SetIndicators()
1204  */
1205 void CMergeApp::SetIndicators(CStatusBar &sb, const UINT *rgid, int n) const
1206 {
1207         m_pLangDlg->SetIndicators(sb, rgid, n);
1208 }
1209
1210 /**
1211  * @brief Translate menu to current WinMerge GUI language
1212  */
1213 void CMergeApp::TranslateMenu(HMENU h) const
1214 {
1215         m_pLangDlg->TranslateMenu(h);
1216 }
1217
1218 /**
1219  * @brief Translate dialog to current WinMerge GUI language
1220  */
1221 void CMergeApp::TranslateDialog(HWND h) const
1222 {
1223         CWnd *pWnd = CWnd::FromHandle(h);
1224         pWnd->SetFont(const_cast<CFont *>(&m_fontGUI));
1225         pWnd->SendMessageToDescendants(WM_SETFONT, (WPARAM)m_fontGUI.m_hObject, MAKELPARAM(FALSE, 0), TRUE);
1226
1227         m_pLangDlg->TranslateDialog(h);
1228 }
1229
1230 /**
1231  * @brief Load string and translate to current WinMerge GUI language
1232  */
1233 String CMergeApp::LoadString(UINT id) const
1234 {
1235         return m_pLangDlg->LoadString(id);
1236 }
1237
1238 bool CMergeApp::TranslateString(const std::string& str, String& translated_str) const
1239 {
1240         return m_pLangDlg->TranslateString(str, translated_str);
1241 }
1242
1243 /**
1244  * @brief Load dialog caption and translate to current WinMerge GUI language
1245  */
1246 std::wstring CMergeApp::LoadDialogCaption(LPCTSTR lpDialogTemplateID) const
1247 {
1248         return m_pLangDlg->LoadDialogCaption(lpDialogTemplateID);
1249 }
1250
1251 /**
1252  * @brief Adds specified file to the recent projects list.
1253  * @param [in] sPathName Path to project file
1254  */
1255 void CMergeApp::AddToRecentProjectsMRU(LPCTSTR sPathName)
1256 {
1257         // sPathName will be added to the top of the MRU list.
1258         // If sPathName already exists in the MRU list, it will be moved to the top
1259         if (m_pRecentFileList != nullptr)    {
1260                 m_pRecentFileList->Add(sPathName);
1261                 m_pRecentFileList->WriteList();
1262         }
1263 }
1264
1265 void CMergeApp::SetupTempPath()
1266 {
1267         String instTemp = env::GetPerInstanceString(TempFolderPrefix);
1268         if (GetOptionsMgr()->GetBool(OPT_USE_SYSTEM_TEMP_PATH))
1269                 env::SetTemporaryPath(paths::ConcatPath(env::GetSystemTempPath(), instTemp));
1270         else
1271                 env::SetTemporaryPath(paths::ConcatPath(GetOptionsMgr()->GetString(OPT_CUSTOM_TEMP_PATH), instTemp));
1272 }
1273
1274 /**
1275  * @brief Handles menu selection from recent projects list
1276  * @param [in] nID Menu ID of the selected item
1277  */
1278 BOOL CMergeApp::OnOpenRecentFile(UINT nID)
1279 {
1280         return LoadAndOpenProjectFile(static_cast<const TCHAR *>(m_pRecentFileList->m_arrNames[nID-ID_FILE_PROJECT_MRU_FIRST]));
1281 }
1282
1283 /**
1284  * @brief Return if doc is in Merging/Editing mode
1285  */
1286 bool CMergeApp::GetMergingMode() const
1287 {
1288         return m_bMergingMode;
1289 }
1290
1291 /**
1292  * @brief Set doc to Merging/Editing mode
1293  */
1294 void CMergeApp::SetMergingMode(bool bMergingMode)
1295 {
1296         m_bMergingMode = bMergingMode;
1297         GetOptionsMgr()->SaveOption(OPT_MERGE_MODE, m_bMergingMode);
1298 }
1299
1300 /**
1301  * @brief Switch Merging/Editing mode and update
1302  * buffer read-only states accordingly
1303  */
1304 void CMergeApp::OnMergingMode()
1305 {
1306         bool bMergingMode = GetMergingMode();
1307
1308         if (!bMergingMode)
1309                 LangMessageBox(IDS_MERGE_MODE, MB_ICONINFORMATION | MB_DONT_DISPLAY_AGAIN);
1310         SetMergingMode(!bMergingMode);
1311 }
1312
1313 /**
1314  * @brief Update Menuitem for Merging Mode
1315  */
1316 void CMergeApp::OnUpdateMergingMode(CCmdUI* pCmdUI)
1317 {
1318         pCmdUI->Enable(true);
1319         pCmdUI->SetCheck(GetMergingMode());
1320 }
1321
1322 /**
1323  * @brief Update MergingMode UI in statusbar
1324  */
1325 void CMergeApp::OnUpdateMergingStatus(CCmdUI *pCmdUI)
1326 {
1327         String text = theApp.LoadString(IDS_MERGEMODE_MERGING);
1328         pCmdUI->SetText(text.c_str());
1329         pCmdUI->Enable(GetMergingMode());
1330 }
1331
1332 UINT CMergeApp::GetProfileInt(LPCTSTR lpszSection, LPCTSTR lpszEntry, int nDefault)
1333 {
1334         COptionsMgr *pOptions = GetOptionsMgr();
1335         String name = strutils::format(_T("%s/%s"), lpszSection, lpszEntry);
1336         if (!pOptions->Get(name).IsInt())
1337                 pOptions->InitOption(name, nDefault);
1338         return pOptions->GetInt(name);
1339 }
1340
1341 BOOL CMergeApp::WriteProfileInt(LPCTSTR lpszSection, LPCTSTR lpszEntry, int nValue)
1342 {
1343         COptionsMgr *pOptions = GetOptionsMgr();
1344         String name = strutils::format(_T("%s/%s"), lpszSection, lpszEntry);
1345         if (!pOptions->Get(name).IsInt())
1346                 pOptions->InitOption(name, nValue);
1347         return pOptions->SaveOption(name, nValue) == COption::OPT_OK;
1348 }
1349
1350 CString CMergeApp::GetProfileString(LPCTSTR lpszSection, LPCTSTR lpszEntry, LPCTSTR lpszDefault)
1351 {
1352         COptionsMgr *pOptions = GetOptionsMgr();
1353         String name = strutils::format(_T("%s/%s"), lpszSection, lpszEntry);
1354         if (!pOptions->Get(name).IsString())
1355                 pOptions->InitOption(name, lpszDefault ? lpszDefault : _T(""));
1356         return pOptions->GetString(name).c_str();
1357 }
1358
1359 BOOL CMergeApp::WriteProfileString(LPCTSTR lpszSection, LPCTSTR lpszEntry, LPCTSTR lpszValue)
1360 {
1361         COptionsMgr *pOptions = GetOptionsMgr();
1362         if (lpszEntry != nullptr)
1363         {
1364                 String name = strutils::format(_T("%s/%s"), lpszSection, lpszEntry);
1365                 if (!pOptions->Get(name).IsString())
1366                         pOptions->InitOption(name, lpszValue ? lpszValue : _T(""));
1367                 return pOptions->SaveOption(name, lpszValue ? lpszValue : _T("")) == COption::OPT_OK;
1368         }
1369         else
1370         {
1371                 String name = strutils::format(_T("%s/"), lpszSection);
1372                 pOptions->RemoveOption(name);
1373         }
1374         return TRUE;
1375 }