Src/Merge.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 //    WinMerge:  an interactive diff/merge utility
   3 //    Copyright (C) 1997-2000  Thingamahoochie Software
   4 //    Author: Dean Grimm
   5 //
   6 //    This program is free software; you can redistribute it and/or modify
   7 //    it under the terms of the GNU General Public License as published by
   8 //    the Free Software Foundation; either version 2 of the License, or
   9 //    (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
  18 //    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 //
  20 /////////////////////////////////////////////////////////////////////////////
  21 /**
  22  * @file  Merge.cpp
  23  *
  24  * @brief Defines the class behaviors for the application.
  25  *
  26  */
  27
  28 #include "stdafx.h"
  29 #include "Merge.h"
  30 #include "Constants.h"
  31 #include "UnicodeString.h"
  32 #include "unicoder.h"
  33 #include "Environment.h"
  34 #include "OptionsMgr.h"
  35 #include "OptionsInit.h"
  36 #include "RegOptionsMgr.h"
  37 #include "OpenDoc.h"
  38 #include "OpenFrm.h"
  39 #include "OpenView.h"
  40 #include "HexMergeDoc.h"
  41 #include "HexMergeFrm.h"
  42 #include "HexMergeView.h"
  43 #include "AboutDlg.h"
  44 #include "MainFrm.h"
  45 #include "MergeEditFrm.h"
  46 #include "DirFrame.h"
  47 #include "MergeDoc.h"
  48 #include "DirDoc.h"
  49 #include "DirView.h"
  50 #include "PropBackups.h"
  51 #include "FileOrFolderSelect.h"
  52 #include "paths.h"
  53 #include "FileFilterHelper.h"
  54 #include "LineFiltersList.h"
  55 #include "FilterCommentsManager.h"
  56 #include "SyntaxColors.h"
  57 #include "CCrystalTextMarkers.h"
  58 #include "OptionsSyntaxColors.h"
  59 #include "Plugins.h"
  60 #include "ProjectFile.h"
  61 #include "MergeEditSplitterView.h"
  62 #include "LanguageSelect.h"
  63 #include "OptionsDef.h"
  64 #include "MergeCmdLineInfo.h"
  65 #include "ConflictFileParser.h"
  66 #include "JumpList.h"
  67 #include "stringdiffs.h"
  68 #include "TFile.h"
  69 #include "paths.h"
  70 #include "CompareStats.h"
  71 #include "TestMain.h"
  72 #include "charsets.h" // For shutdown cleanup
  73
  74 #ifdef _DEBUG
  75 #define new DEBUG_NEW
  76 #endif
  77
  78 /** @brief Location for command line help to open. */
  79 static const TCHAR CommandLineHelpLocation[] = _T("::/htmlhelp/Command_line.html");
  80
  81 /** @brief Backup file extension. */
  82 static const TCHAR BACKUP_FILE_EXT[] = _T("bak");
  83
  84 /////////////////////////////////////////////////////////////////////////////
  85 // CMergeApp
  86
  87 BEGIN_MESSAGE_MAP(CMergeApp, CWinApp)
  88         //{{AFX_MSG_MAP(CMergeApp)
  89         ON_COMMAND(ID_APP_ABOUT, OnAppAbout)
  90         ON_COMMAND(ID_HELP, OnHelp)
  91         ON_COMMAND_EX_RANGE(ID_FILE_PROJECT_MRU_FIRST, ID_FILE_PROJECT_MRU_LAST, OnOpenRecentFile)
  92         ON_UPDATE_COMMAND_UI(ID_FILE_PROJECT_MRU_FIRST, CWinApp::OnUpdateRecentFileMenu)
  93         ON_COMMAND(ID_FILE_MERGINGMODE, OnMergingMode)
  94         ON_UPDATE_COMMAND_UI(ID_FILE_MERGINGMODE, OnUpdateMergingMode)
  95         ON_UPDATE_COMMAND_UI(ID_STATUS_MERGINGMODE, OnUpdateMergingStatus)
  96         //}}AFX_MSG_MAP
  97         // Standard file based document commands
  98         //ON_COMMAND(ID_FILE_NEW, CWinApp::OnFileNew)
  99         //ON_COMMAND(ID_FILE_OPEN, CWinApp::OnFileOpen)
 100         // Standard print setup command
 101         ON_COMMAND(ID_FILE_PRINT_SETUP, CWinApp::OnFilePrintSetup)
 102 END_MESSAGE_MAP()
 103
 104 /////////////////////////////////////////////////////////////////////////////
 105 // CMergeApp construction
 106
 107 CMergeApp::CMergeApp() :
 108   m_bNeedIdleTimer(false)
 109 , m_pOpenTemplate(nullptr)
 110 , m_pDiffTemplate(nullptr)
 111 , m_pHexMergeTemplate(nullptr)
 112 , m_pDirTemplate(nullptr)
 113 , m_mainThreadScripts(nullptr)
 114 , m_nLastCompareResult(0)
 115 , m_bNonInteractive(false)
 116 , m_pOptions(new CRegOptionsMgr())
 117 , m_pGlobalFileFilter(new FileFilterHelper())
 118 , m_nActiveOperations(0)
 119 , m_pLangDlg(new CLanguageSelect())
 120 , m_bEscShutdown(false)
 121 , m_bExitIfNoDiff(MergeCmdLineInfo::Disabled)
 122 , m_pLineFilters(new LineFiltersList())
 123 , m_pFilterCommentsManager(new FilterCommentsManager())
 124 , m_pSyntaxColors(new SyntaxColors())
 125 , m_pMarkers(new CCrystalTextMarkers())
 126 , m_bMergingMode(false)
 127 {
 128         // add construction code here,
 129         // Place all significant initialization in InitInstance
 130 }
 131
 132 CMergeApp::~CMergeApp()
 133 {
 134         strdiff::Close();
 135 }
 136 /////////////////////////////////////////////////////////////////////////////
 137 // The one and only CMergeApp object
 138
 139 CMergeApp theApp;
 140
 141 /////////////////////////////////////////////////////////////////////////////
 142 // CMergeApp initialization
 143
 144 /**
 145  * @brief Initialize WinMerge application instance.
 146  * @return TRUE if application initialization succeeds (and we'll run it),
 147  *   FALSE if something failed and we exit the instance.
 148  * @todo We could handle these failure situations more gratefully, i.e. show
 149  *  at least some error message to the user..
 150  */
 151 BOOL CMergeApp::InitInstance()
 152 {
 153         // Prevents DLL hijacking
 154         HMODULE hLibrary = GetModuleHandle(_T("kernel32.dll"));
 155         BOOL (WINAPI *pfnSetSearchPathMode)(DWORD) = (BOOL (WINAPI *)(DWORD))GetProcAddress(hLibrary, "SetSearchPathMode");
 156         if (pfnSetSearchPathMode != nullptr)
 157                 pfnSetSearchPathMode(0x00000001L /*BASE_SEARCH_PATH_ENABLE_SAFE_SEARCHMODE*/ | 0x00008000L /*BASE_SEARCH_PATH_PERMANENT*/);
 158         BOOL (WINAPI *pfnSetDllDirectoryA)(LPCSTR) = (BOOL (WINAPI *)(LPCSTR))GetProcAddress(hLibrary, "SetDllDirectoryA");
 159         if (pfnSetDllDirectoryA != nullptr)
 160                 pfnSetDllDirectoryA("");
 161
 162         JumpList::SetCurrentProcessExplicitAppUserModelID(L"Thingamahoochie.WinMerge");
 163
 164         InitCommonControls();    // initialize common control library
 165         CWinApp::InitInstance(); // call parent class method
 166
 167         // Runtime switch so programmer may set this in interactive debugger
 168         int dbgmem = 0;
 169         if (dbgmem)
 170         {
 171                 // get current setting
 172                 int tmpFlag = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
 173                 // Keep freed memory blocks in the heap's linked list and mark them as freed
 174                 tmpFlag |= _CRTDBG_DELAY_FREE_MEM_DF;
 175                 // Call _CrtCheckMemory at every allocation and deallocation request.
 176                 // WARNING: This slows down WinMerge *A LOT*
 177                 tmpFlag |= _CRTDBG_CHECK_ALWAYS_DF;
 178                 // Set the new state for the flag
 179                 _CrtSetDbgFlag( tmpFlag );
 180         }
 181
 182         // CCrystalEdit Drag and Drop functionality needs AfxOleInit.
 183         if(!AfxOleInit())
 184         {
 185                 TRACE(_T("AfxOleInitFailed. OLE functionality disabled"));
 186         }
 187
 188         // Standard initialization
 189         // If you are not using these features and wish to reduce the size
 190         //  of your final executable, you should remove from the following
 191         //  the specific initialization routines you do not need.
 192
 193         // Revoke the standard OLE Message Filter to avoid drawing frame while loading files.
 194         COleMessageFilter* pOldFilter = AfxOleGetMessageFilter();
 195         pOldFilter->Revoke();
 196
 197         // Load registry keys from WinMerge.reg if existing WinMerge.reg
 198         env::LoadRegistryFromFile(paths::ConcatPath(env::GetProgPath(), _T("WinMerge.reg")));
 199
 200         // Parse command-line arguments.
 201         MergeCmdLineInfo cmdInfo(GetCommandLine());
 202         if (cmdInfo.m_bNoPrefs)
 203                 m_pOptions->SetSerializing(false); // Turn off serializing to registry.
 204
 205         Options::Init(m_pOptions.get()); // Implementation in OptionsInit.cpp
 206         ApplyCommandLineConfigOptions(cmdInfo);
 207         if (cmdInfo.m_sErrorMessages.size() > 0)
 208         {
 209                 if (AttachConsole(ATTACH_PARENT_PROCESS))
 210                 {
 211                         DWORD dwWritten;
 212                         for (auto& msg : cmdInfo.m_sErrorMessages)
 213                         {
 214                                 String line = _T("WinMerge: ") + msg + _T("\n");
 215                                 WriteConsole(GetStdHandle(STD_OUTPUT_HANDLE), line.c_str(), static_cast<DWORD>(line.length()), &dwWritten, nullptr);
 216                         }
 217                         FreeConsole();
 218                 }
 219         }
 220
 221         // Initialize temp folder
 222         SetupTempPath();
 223
 224         // If paths were given to commandline we consider this being an invoke from
 225         // commandline (from other application, shellextension etc).
 226         bool bCommandLineInvoke = cmdInfo.m_Files.GetSize() > 0;
 227
 228         // WinMerge registry settings are stored under HKEY_CURRENT_USER/Software/Thingamahoochie
 229         // This is the name of the company of the original author (Dean Grimm)
 230         SetRegistryKey(_T("Thingamahoochie"));
 231
 232         bool bSingleInstance = GetOptionsMgr()->GetBool(OPT_SINGLE_INSTANCE) ||
 233                 (true == cmdInfo.m_bSingleInstance);
 234
 235         // Create exclusion mutex name
 236         TCHAR szDesktopName[MAX_PATH] = _T("Win9xDesktop");
 237         DWORD dwLengthNeeded;
 238         GetUserObjectInformation(GetThreadDesktop(GetCurrentThreadId()), UOI_NAME,
 239                 szDesktopName, sizeof(szDesktopName), &dwLengthNeeded);
 240         TCHAR szMutexName[MAX_PATH + 40];
 241         // Combine window class name and desktop name to form a unique mutex name.
 242         // As the window class name is decorated to distinguish between ANSI and
 243         // UNICODE build, so will be the mutex name.
 244         wsprintf(szMutexName, _T("%s-%s"), CMainFrame::szClassName, szDesktopName);
 245         HANDLE hMutex = CreateMutex(nullptr, FALSE, szMutexName);
 246         if (hMutex != nullptr)
 247                 WaitForSingleObject(hMutex, INFINITE);
 248         if (bSingleInstance && GetLastError() == ERROR_ALREADY_EXISTS)
 249         {
 250                 // Activate previous instance and send commandline to it
 251                 HWND hWnd = FindWindow(CMainFrame::szClassName, nullptr);
 252                 if (hWnd != nullptr)
 253                 {
 254                         if (IsIconic(hWnd))
 255                                 ShowWindow(hWnd, SW_RESTORE);
 256                         SetForegroundWindow(GetLastActivePopup(hWnd));
 257                         LPTSTR cmdLine = GetCommandLine();
 258                         COPYDATASTRUCT data = { 0, (lstrlen(cmdLine) + 1) * sizeof(TCHAR), cmdLine};
 259                         if (::SendMessage(hWnd, WM_COPYDATA, NULL, (LPARAM)&data))
 260                         {
 261                                 ReleaseMutex(hMutex);
 262                                 CloseHandle(hMutex);
 263                                 return FALSE;
 264                         }
 265                 }
 266         }
 267
 268         LoadStdProfileSettings(GetOptionsMgr()->GetInt(OPT_MRU_MAX));  // Load standard INI file options (including MRU)
 269
 270         InitializeFileFilters();
 271
 272         // Read last used filter from registry
 273         // If filter fails to set, reset to default
 274         const String filterString = m_pOptions->GetString(OPT_FILEFILTER_CURRENT);
 275         bool bFilterSet = m_pGlobalFileFilter->SetFilter(filterString);
 276         if (!bFilterSet)
 277         {
 278                 String filter = m_pGlobalFileFilter->GetFilterNameOrMask();
 279                 m_pOptions->SaveOption(OPT_FILEFILTER_CURRENT, filter);
 280         }
 281
 282         charsets_init();
 283         UpdateCodepageModule();
 284
 285         FileTransform::g_UnpackerMode = static_cast<PLUGIN_MODE>(GetOptionsMgr()->GetInt(OPT_PLUGINS_UNPACKER_MODE));
 286         FileTransform::g_PredifferMode = static_cast<PLUGIN_MODE>(GetOptionsMgr()->GetInt(OPT_PLUGINS_PREDIFFER_MODE));
 287
 288         NONCLIENTMETRICS ncm = { sizeof NONCLIENTMETRICS };
 289         if (SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof NONCLIENTMETRICS, &ncm, 0))
 290         {
 291                 const int lfHeight = -MulDiv(9, CClientDC(CWnd::GetDesktopWindow()).GetDeviceCaps(LOGPIXELSY), 72);
 292                 if (abs(ncm.lfMenuFont.lfHeight) > abs(lfHeight))
 293                         ncm.lfMenuFont.lfHeight = lfHeight;
 294                 if (wcscmp(ncm.lfMenuFont.lfFaceName, L"Meiryo") == 0 || wcscmp(ncm.lfMenuFont.lfFaceName, L"\U000030e1\U000030a4\U000030ea\U000030aa"/* "Meiryo" in Japanese */) == 0)
 295                         wcscpy_s(ncm.lfMenuFont.lfFaceName, L"Meiryo UI");
 296                 m_fontGUI.CreateFontIndirect(&ncm.lfMenuFont);
 297         }
 298
 299         if (m_pSyntaxColors != nullptr)
 300                 Options::SyntaxColors::Load(GetOptionsMgr(), m_pSyntaxColors.get());
 301
 302         if (m_pMarkers != nullptr)
 303                 m_pMarkers->LoadFromRegistry();
 304
 305         CCrystalTextView::SetRenderingModeDefault(static_cast<CCrystalTextView::RENDERING_MODE>(GetOptionsMgr()->GetInt(OPT_RENDERING_MODE)));
 306
 307         if (m_pLineFilters != nullptr)
 308                 m_pLineFilters->Initialize(GetOptionsMgr());
 309
 310         // If there are no filters loaded, and there is filter string in previous
 311         // option string, import old filters to new place.
 312         if (m_pLineFilters->GetCount() == 0)
 313         {
 314                 String oldFilter = theApp.GetProfileString(_T("Settings"), _T("RegExps"));
 315                 if (!oldFilter.empty())
 316                         m_pLineFilters->Import(oldFilter);
 317         }
 318
 319         // Check if filter folder is set, and create it if not
 320         String pathMyFolders = GetOptionsMgr()->GetString(OPT_FILTER_USERPATH);
 321         if (pathMyFolders.empty())
 322         {
 323                 // No filter path, set it to default and make sure it exists.
 324                 pathMyFolders = GetOptionsMgr()->GetDefault<String>(OPT_FILTER_USERPATH);
 325                 GetOptionsMgr()->SaveOption(OPT_FILTER_USERPATH, pathMyFolders);
 326                 theApp.m_pGlobalFileFilter->SetUserFilterPath(pathMyFolders);
 327         }
 328         if (!paths::CreateIfNeeded(pathMyFolders))
 329         {
 330                 // Failed to create a folder, check it didn't already
 331                 // exist.
 332                 DWORD errCode = GetLastError();
 333                 if (errCode != ERROR_ALREADY_EXISTS)
 334                 {
 335                         // Failed to create a folder for filters, fallback to
 336                         // "My Documents"-folder. It is not worth the trouble to
 337                         // bother user about this or user more clever solutions.
 338                         GetOptionsMgr()->SaveOption(OPT_FILTER_USERPATH, env::GetMyDocuments());
 339                 }
 340         }
 341
 342         strdiff::Init(); // String diff init
 343         strdiff::SetBreakChars(GetOptionsMgr()->GetString(OPT_BREAK_SEPARATORS).c_str());
 344
 345         m_bMergingMode = GetOptionsMgr()->GetBool(OPT_MERGE_MODE);
 346
 347         // Initialize i18n (multiple language) support
 348
 349         m_pLangDlg->InitializeLanguage((WORD)GetOptionsMgr()->GetInt(OPT_SELECTED_LANGUAGE));
 350
 351         m_mainThreadScripts = new CAssureScriptsForThread;
 352
 353         // Register the application's document templates.  Document templates
 354         //  serve as the connection between documents, frame windows and views.
 355
 356         // Open view
 357         m_pOpenTemplate = new CMultiDocTemplate(
 358                 IDR_MAINFRAME,
 359                 RUNTIME_CLASS(COpenDoc),
 360                 RUNTIME_CLASS(COpenFrame), // custom MDI child frame
 361                 RUNTIME_CLASS(COpenView));
 362         AddDocTemplate(m_pOpenTemplate);
 363
 364         // Merge Edit view
 365         m_pDiffTemplate = new CMultiDocTemplate(
 366                 IDR_MERGEDOCTYPE,
 367                 RUNTIME_CLASS(CMergeDoc),
 368                 RUNTIME_CLASS(CMergeEditFrame), // custom MDI child frame
 369                 RUNTIME_CLASS(CMergeEditSplitterView));
 370         AddDocTemplate(m_pDiffTemplate);
 371
 372         // Merge Edit view
 373         m_pHexMergeTemplate = new CMultiDocTemplate(
 374                 IDR_MERGEDOCTYPE,
 375                 RUNTIME_CLASS(CHexMergeDoc),
 376                 RUNTIME_CLASS(CHexMergeFrame), // custom MDI child frame
 377                 RUNTIME_CLASS(CHexMergeView));
 378         AddDocTemplate(m_pHexMergeTemplate);
 379
 380         // Directory view
 381         m_pDirTemplate = new CMultiDocTemplate(
 382                 IDR_DIRDOCTYPE,
 383                 RUNTIME_CLASS(CDirDoc),
 384                 RUNTIME_CLASS(CDirFrame), // custom MDI child frame
 385                 RUNTIME_CLASS(CDirView));
 386         AddDocTemplate(m_pDirTemplate);
 387
 388         // create main MDI Frame window
 389         CMainFrame* pMainFrame = new CMainFrame;
 390         if (!pMainFrame->LoadFrame(IDR_MAINFRAME))
 391         {
 392                 if (hMutex != nullptr)
 393                 {
 394                         ReleaseMutex(hMutex);
 395                         CloseHandle(hMutex);
 396                 }
 397                 return FALSE;
 398         }
 399         m_pMainWnd = pMainFrame;
 400
 401         // Init menus -- hMenuDefault is for MainFrame
 402         pMainFrame->m_hMenuDefault = pMainFrame->NewDefaultMenu();
 403
 404         // Set the menu
 405         // Note : for Windows98 compatibility, use FromHandle and not Attach/Detach
 406         CMenu * pNewMenu = CMenu::FromHandle(pMainFrame->m_hMenuDefault);
 407         pMainFrame->MDISetMenu(pNewMenu, nullptr);
 408
 409         // The main window has been initialized, so activate and update it.
 410         pMainFrame->ActivateFrame(cmdInfo.m_nCmdShow);
 411         pMainFrame->UpdateWindow();
 412
 413         // Since this function actually opens paths for compare it must be
 414         // called after initializing CMainFrame!
 415         bool bContinue = true;
 416         if (!ParseArgsAndDoOpen(cmdInfo, pMainFrame) && bCommandLineInvoke)
 417                 bContinue = false;
 418
 419         if (hMutex != nullptr)
 420                 ReleaseMutex(hMutex);
 421
 422         // If user wants to cancel the compare, close WinMerge
 423         if (!bContinue)
 424         {
 425                 pMainFrame->PostMessage(WM_CLOSE, 0, 0);
 426         }
 427
 428 #ifdef TEST_WINMERGE
 429         WinMergeTest::TestAll();
 430 #endif
 431
 432         return bContinue;
 433 }
 434
 435 static void OpenContributersFile(int&)
 436 {
 437         theApp.OpenFileToExternalEditor(paths::ConcatPath(env::GetProgPath(), ContributorsPath));
 438 }
 439
 440 // App command to run the dialog
 441 void CMergeApp::OnAppAbout()
 442 {
 443         CAboutDlg aboutDlg;
 444         aboutDlg.m_onclick_contributers += Poco::delegate(OpenContributersFile);
 445         aboutDlg.DoModal();
 446         aboutDlg.m_onclick_contributers.clear();
 447 }
 448
 449 /////////////////////////////////////////////////////////////////////////////
 450 // CMergeApp commands
 451
 452 /**
 453  * @brief Called when application is about to exit.
 454  * This functions is called when application is exiting, so this is
 455  * good place to do cleanups.
 456  * @return Application's exit value (returned from WinMain()).
 457  */
 458 int CMergeApp::ExitInstance()
 459 {
 460         charsets_cleanup();
 461
 462         //  Save registry keys if existing WinMerge.reg
 463         env::SaveRegistryToFile(paths::ConcatPath(env::GetProgPath(), _T("WinMerge.reg")), RegDir);
 464
 465         // Remove tempfolder
 466         const String temp = env::GetTemporaryPath();
 467         ClearTempfolder(temp);
 468
 469         // Cleanup left over tempfiles from previous instances.
 470         // Normally this should not neet to do anything - but if for some reason
 471         // WinMerge did not delete temp files this makes sure they are removed.
 472         CleanupWMtemp();
 473
 474         delete m_mainThreadScripts;
 475         CWinApp::ExitInstance();
 476         return 0;
 477 }
 478
 479 int CMergeApp::DoMessageBox(LPCTSTR lpszPrompt, UINT nType, UINT nIDPrompt)
 480 {
 481         // This is a convenient point for breakpointing !!!
 482
 483         // Create a handle to store the parent window of the message box.
 484         CWnd* pParentWnd = CWnd::GetActiveWindow();
 485
 486         // Check whether an active window was retrieved successfully.
 487         if (pParentWnd == nullptr)
 488         {
 489                 // Try to retrieve a handle to the last active popup.
 490                 CWnd * mainwnd = GetMainWnd();
 491                 if (mainwnd != nullptr)
 492                         pParentWnd = mainwnd->GetLastActivePopup();
 493         }
 494
 495         // Use our own message box implementation, which adds the
 496         // do not show again checkbox, and implements it on subsequent calls
 497         // (if caller set the style)
 498
 499         if (m_bNonInteractive)
 500         {
 501                 if (AttachConsole(ATTACH_PARENT_PROCESS))
 502                 {
 503                         DWORD dwWritten;
 504                         String line = _T("WinMerge: ") + String(lpszPrompt) + _T("\n");
 505                         WriteConsole(GetStdHandle(STD_OUTPUT_HANDLE), line.c_str(), static_cast<DWORD>(line.length()), &dwWritten, nullptr);
 506                         FreeConsole();
 507                 }
 508                 return IDCANCEL;
 509         }
 510
 511         // Create the message box dialog.
 512         CMessageBoxDialog dlgMessage(pParentWnd, lpszPrompt, _T(""), nType | MB_RIGHT_ALIGN,
 513                 nIDPrompt);
 514
 515         if (m_pMainWnd->IsIconic())
 516                 m_pMainWnd->ShowWindow(SW_RESTORE);
 517
 518         // Display the message box dialog and return the result.
 519         return static_cast<int>(dlgMessage.DoModal());
 520 }
 521
 522 bool CMergeApp::IsReallyIdle() const
 523 {
 524         bool idle = true;
 525         POSITION pos = m_pDirTemplate->GetFirstDocPosition();
 526         while (pos != nullptr)
 527         {
 528                 CDirDoc *pDirDoc = static_cast<CDirDoc *>(m_pDirTemplate->GetNextDoc(pos));
 529                 if (const CompareStats *pCompareStats = pDirDoc->GetCompareStats())
 530                 {
 531                         if (!pCompareStats->IsCompareDone() || pDirDoc->GetGeneratingReport())
 532                                 idle = false;
 533                 }
 534         }
 535     return idle;
 536 }
 537
 538 BOOL CMergeApp::OnIdle(LONG lCount)
 539 {
 540         if (CWinApp::OnIdle(lCount))
 541                 return TRUE;
 542
 543         // If anyone has requested notification when next idle occurs, send it
 544         if (m_bNeedIdleTimer)
 545         {
 546                 m_bNeedIdleTimer = false;
 547                 m_pMainWnd->SendMessageToDescendants(WM_TIMER, IDLE_TIMER, lCount, TRUE, FALSE);
 548         }
 549
 550         if (m_bNonInteractive && IsReallyIdle())
 551                 m_pMainWnd->PostMessage(WM_CLOSE, 0, 0);
 552
 553         static_cast<CRegOptionsMgr *>(GetOptionsMgr())->CloseKeys();
 554
 555         return FALSE;
 556 }
 557
 558 /**
 559  * @brief Load any known file filters.
 560  *
 561  * This function loads filter files from paths we know contain them.
 562  * @note User's filter location may not be set yet.
 563  */
 564 void CMergeApp::InitializeFileFilters()
 565 {
 566         String filterPath = GetOptionsMgr()->GetString(OPT_FILTER_USERPATH);
 567
 568         if (!filterPath.empty())
 569         {
 570                 m_pGlobalFileFilter->SetUserFilterPath(filterPath);
 571         }
 572         m_pGlobalFileFilter->LoadAllFileFilters();
 573 }
 574
 575 void CMergeApp::ApplyCommandLineConfigOptions(MergeCmdLineInfo& cmdInfo)
 576 {
 577         if (cmdInfo.m_bNoPrefs)
 578                 m_pOptions->SetSerializing(false); // Turn off serializing to registry.
 579
 580         for (const auto& it : cmdInfo.m_Options)
 581         {
 582                 if (m_pOptions->Set(it.first, it.second) == COption::OPT_NOTFOUND)
 583                 {
 584                         String longname = m_pOptions->ExpandShortName(it.first);
 585                         if (!longname.empty())
 586                         {
 587                                 m_pOptions->Set(longname, it.second);
 588                         }
 589                         else
 590                         {
 591                                 cmdInfo.m_sErrorMessages.push_back(strutils::format_string1(_T("Invalid key '%1' specified in /config option"), it.first));
 592                         }
 593                 }
 594         }
 595 }
 596
 597 /** @brief Read command line arguments and open files for comparison.
 598  *
 599  * The name of the function is a legacy code from the time that this function
 600  * actually parsed the command line. Today the parsing is done using the
 601  * MergeCmdLineInfo class.
 602  * @param [in] cmdInfo Commandline parameters info.
 603  * @param [in] pMainFrame Pointer to application main frame.
 604  * @return `true` if we opened the compare, `false` if the compare was canceled.
 605  */
 606 bool CMergeApp::ParseArgsAndDoOpen(MergeCmdLineInfo& cmdInfo, CMainFrame* pMainFrame)
 607 {
 608         bool bCompared = false;
 609         String strDesc[3];
 610         m_bNonInteractive = cmdInfo.m_bNonInteractive;
 611
 612         // Set the global file filter.
 613         if (!cmdInfo.m_sFileFilter.empty())
 614         {
 615                 m_pGlobalFileFilter->SetFilter(cmdInfo.m_sFileFilter);
 616         }
 617
 618         // Set codepage.
 619         if (cmdInfo.m_nCodepage)
 620         {
 621                 UpdateDefaultCodepage(2,cmdInfo.m_nCodepage);
 622         }
 623
 624         // Unless the user has requested to see WinMerge's usage open files for
 625         // comparison.
 626         if (cmdInfo.m_bShowUsage)
 627         {
 628                 ShowHelp(CommandLineHelpLocation);
 629         }
 630         else
 631         {
 632                 // Set the required information we need from the command line:
 633
 634                 m_bExitIfNoDiff = cmdInfo.m_bExitIfNoDiff;
 635                 m_bEscShutdown = cmdInfo.m_bEscShutdown;
 636
 637                 m_strSaveAsPath = cmdInfo.m_sOutputpath;
 638
 639                 strDesc[0] = cmdInfo.m_sLeftDesc;
 640                 if (cmdInfo.m_Files.GetSize() < 3)
 641                 {
 642                         strDesc[1] = cmdInfo.m_sRightDesc;
 643                 }
 644                 else
 645                 {
 646                         strDesc[1] = cmdInfo.m_sMiddleDesc;
 647                         strDesc[2] = cmdInfo.m_sRightDesc;
 648                 }
 649
 650                 if (cmdInfo.m_Files.GetSize() > 2)
 651                 {
 652                         cmdInfo.m_dwLeftFlags |= FFILEOPEN_CMDLINE;
 653                         cmdInfo.m_dwMiddleFlags |= FFILEOPEN_CMDLINE;
 654                         cmdInfo.m_dwRightFlags |= FFILEOPEN_CMDLINE;
 655                         DWORD dwFlags[3] = {cmdInfo.m_dwLeftFlags, cmdInfo.m_dwMiddleFlags, cmdInfo.m_dwRightFlags};
 656                         bCompared = pMainFrame->DoFileOpen(&cmdInfo.m_Files,
 657                                 dwFlags, strDesc, cmdInfo.m_sReportFile, cmdInfo.m_bRecurse, nullptr,
 658                                 cmdInfo.m_sPreDiffer);
 659                 }
 660                 else if (cmdInfo.m_Files.GetSize() > 1)
 661                 {
 662                         DWORD dwFlags[3] = {cmdInfo.m_dwLeftFlags, cmdInfo.m_dwRightFlags, FFILEOPEN_NONE};
 663                         bCompared = pMainFrame->DoFileOpen(&cmdInfo.m_Files,
 664                                 dwFlags, strDesc, cmdInfo.m_sReportFile, cmdInfo.m_bRecurse, nullptr,
 665                                 cmdInfo.m_sPreDiffer);
 666                 }
 667                 else if (cmdInfo.m_Files.GetSize() == 1)
 668                 {
 669                         String sFilepath = cmdInfo.m_Files[0];
 670                         if (IsProjectFile(sFilepath))
 671                         {
 672                                 bCompared = LoadAndOpenProjectFile(sFilepath);
 673                         }
 674                         else if (IsConflictFile(sFilepath))
 675                         {
 676                                 //For a conflict file, load the descriptions in their respective positions:  (they will be reordered as needed)
 677                                 strDesc[0] = cmdInfo.m_sLeftDesc;
 678                                 strDesc[1] = cmdInfo.m_sMiddleDesc;
 679                                 strDesc[2] = cmdInfo.m_sRightDesc;
 680                                 bCompared = pMainFrame->DoOpenConflict(sFilepath, strDesc);
 681                         }
 682                         else
 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);
 688                         }
 689                 }
 690                 else if (cmdInfo.m_Files.GetSize() == 0) // if there are no input args, we can check the display file dialog flag
 691                 {
 692                         bool showFiles = m_pOptions->GetBool(OPT_SHOW_SELECT_FILES_AT_STARTUP);
 693                         if (showFiles)
 694                                 pMainFrame->DoFileOpen();
 695                 }
 696         }
 697         return bCompared;
 698 }
 699
 700 void CMergeApp::UpdateDefaultCodepage(int cpDefaultMode, int cpCustomCodepage)
 701 {
 702         int wLangId;
 703
 704         switch (cpDefaultMode)
 705         {
 706                 case 0:
 707                         ucr::setDefaultCodepage(GetACP());
 708                         break;
 709                 case 1:
 710                         TCHAR buff[32];
 711                         wLangId = GetLangId();
 712                         if (GetLocaleInfo(wLangId, LOCALE_IDEFAULTANSICODEPAGE, buff, sizeof(buff)/sizeof(buff[0])))
 713                                 ucr::setDefaultCodepage(_ttol(buff));
 714                         else
 715                                 ucr::setDefaultCodepage(GetACP());
 716                         break;
 717                 case 2:
 718                         ucr::setDefaultCodepage(cpCustomCodepage);
 719                         break;
 720                 default:
 721                         // no other valid option
 722                         assert (false);
 723                         ucr::setDefaultCodepage(GetACP());
 724         }
 725 }
 726
 727 /**
 728  * @brief Send current option settings into codepage module
 729  */
 730 void CMergeApp::UpdateCodepageModule()
 731 {
 732         // Get current codepage settings from the options module
 733         // and push them into the codepage module
 734         UpdateDefaultCodepage(GetOptionsMgr()->GetInt(OPT_CP_DEFAULT_MODE), GetOptionsMgr()->GetInt(OPT_CP_DEFAULT_CUSTOM));
 735 }
 736
 737 /** @brief Open help from mainframe when user presses F1*/
 738 void CMergeApp::OnHelp()
 739 {
 740         ShowHelp();
 741 }
 742
 743 /**
 744  * @brief Open given file to external editor specified in options.
 745  * @param [in] file Full path to file to open.
 746  *
 747  * Opens file to defined (in Options/system), Notepad by default,
 748  * external editor. Path is decorated with quotation marks if needed
 749  * (contains spaces). Also '$file' in editor path is replaced by
 750  * filename to open.
 751  * @param [in] file Full path to file to open.
 752  * @param [in] nLineNumber Line number to go to.
 753  */
 754 void CMergeApp::OpenFileToExternalEditor(const String& file, int nLineNumber/* = 1*/)
 755 {
 756         String sCmd = GetOptionsMgr()->GetString(OPT_EXT_EDITOR_CMD);
 757         String sFile(file);
 758         strutils::replace(sCmd, _T("$linenum"), strutils::to_str(nLineNumber));
 759
 760         size_t nIndex = sCmd.find(_T("$file"));
 761         if (nIndex != String::npos)
 762         {
 763                 sFile.insert(0, _T("\""));
 764                 strutils::replace(sCmd, _T("$file"), sFile);
 765                 nIndex = sCmd.find(' ', nIndex + sFile.length());
 766                 if (nIndex != String::npos)
 767                         sCmd.insert(nIndex, _T("\""));
 768                 else
 769                         sCmd += '"';
 770         }
 771         else
 772         {
 773                 sCmd += _T(" \"");
 774                 sCmd += sFile;
 775                 sCmd += _T("\"");
 776         }
 777
 778         bool retVal = false;
 779         STARTUPINFO stInfo = { sizeof STARTUPINFO };
 780         PROCESS_INFORMATION processInfo;
 781
 782         retVal = !!CreateProcess(nullptr, (LPTSTR)sCmd.c_str(),
 783                 nullptr, nullptr, FALSE, CREATE_DEFAULT_ERROR_MODE, nullptr, nullptr,
 784                 &stInfo, &processInfo);
 785
 786         if (!retVal)
 787         {
 788                 // Error invoking external editor
 789                 String msg = strutils::format_string1(_("Failed to execute external editor: %1"), sCmd);
 790                 AfxMessageBox(msg.c_str(), MB_ICONSTOP);
 791         }
 792         else
 793         {
 794                 CloseHandle(processInfo.hThread);
 795                 CloseHandle(processInfo.hProcess);
 796         }
 797 }
 798
 799 /**
 800  * @brief Open file, if it exists, else open url
 801  */
 802 void CMergeApp::OpenFileOrUrl(LPCTSTR szFile, LPCTSTR szUrl)
 803 {
 804         if (paths::DoesPathExist(szFile) == paths::IS_EXISTING_FILE)
 805                 ShellExecute(nullptr, _T("open"), _T("notepad.exe"), szFile, nullptr, SW_SHOWNORMAL);
 806         else
 807                 ShellExecute(nullptr, _T("open"), szUrl, nullptr, nullptr, SW_SHOWNORMAL);
 808 }
 809
 810 /**
 811  * @brief Show Help - this is for opening help from outside mainframe.
 812  * @param [in] helpLocation Location inside help, if `nullptr` main help is opened.
 813  */
 814 void CMergeApp::ShowHelp(LPCTSTR helpLocation /*= nullptr*/)
 815 {
 816         String name, ext;
 817         LANGID LangId = GetLangId();
 818         paths::SplitFilename(m_pLangDlg->GetFileName(LangId), nullptr, &name, &ext);
 819         String sPath = paths::ConcatPath(env::GetProgPath(), strutils::format(DocsPath, name.c_str()));
 820         if (paths::DoesPathExist(sPath) != paths::IS_EXISTING_FILE)
 821                 sPath = paths::ConcatPath(env::GetProgPath(), strutils::format(DocsPath, _T("")));
 822         if (helpLocation == nullptr)
 823         {
 824                 if (paths::DoesPathExist(sPath) == paths::IS_EXISTING_FILE)
 825                         ::HtmlHelp(nullptr, sPath.c_str(), HH_DISPLAY_TOC, NULL);
 826                 else
 827                         ShellExecute(nullptr, _T("open"), DocsURL, nullptr, nullptr, SW_SHOWNORMAL);
 828         }
 829         else
 830         {
 831                 if (paths::DoesPathExist(sPath) == paths::IS_EXISTING_FILE)
 832                 {
 833                         sPath += helpLocation;
 834                         ::HtmlHelp(nullptr, sPath.c_str(), HH_DISPLAY_TOPIC, NULL);
 835                 }
 836         }
 837 }
 838
 839 /**
 840  * @brief Creates backup before file is saved or copied over.
 841  * This function handles formatting correct path and filename for
 842  * backup file. Formatting is done based on several options available
 843  * for users in Options/Backups dialog. After path is formatted, file
 844  * is simply just copied. Not much error checking, just if copying
 845  * succeeded or failed.
 846  * @param [in] bFolder Are we creating backup in folder compare?
 847  * @param [in] pszPath Full path to file to backup.
 848  * @return `true` if backup succeeds, or isn't just done.
 849  */
 850 bool CMergeApp::CreateBackup(bool bFolder, const String& pszPath)
 851 {
 852         // If user doesn't want to backups in folder compare, return
 853         // success so operations don't abort.
 854         if (bFolder && !(GetOptionsMgr()->GetBool(OPT_BACKUP_FOLDERCMP)))
 855                 return true;
 856         // Likewise if user doesn't want backups in file compare
 857         else if (!bFolder && !(GetOptionsMgr()->GetBool(OPT_BACKUP_FILECMP)))
 858                 return true;
 859
 860         // create backup copy of file if destination file exists
 861         if (paths::DoesPathExist(pszPath) == paths::IS_EXISTING_FILE)
 862         {
 863                 String bakPath;
 864                 String path;
 865                 String filename;
 866                 String ext;
 867
 868                 paths::SplitFilename(paths::GetLongPath(pszPath), &path, &filename, &ext);
 869
 870                 // Determine backup folder
 871                 if (GetOptionsMgr()->GetInt(OPT_BACKUP_LOCATION) ==
 872                         PropBackups::FOLDER_ORIGINAL)
 873                 {
 874                         // Put backups to same folder than original file
 875                         bakPath = path;
 876                 }
 877                 else if (GetOptionsMgr()->GetInt(OPT_BACKUP_LOCATION) ==
 878                         PropBackups::FOLDER_GLOBAL)
 879                 {
 880                         // Put backups to global folder defined in options
 881                         bakPath = GetOptionsMgr()->GetString(OPT_BACKUP_GLOBALFOLDER);
 882                         if (bakPath.empty())
 883                                 bakPath = path;
 884                         else
 885                                 bakPath = paths::GetLongPath(bakPath);
 886                 }
 887                 else
 888                 {
 889                         _RPTF0(_CRT_ERROR, "Unknown backup location!");
 890                 }
 891
 892                 bool success = false;
 893                 if (GetOptionsMgr()->GetBool(OPT_BACKUP_ADD_BAK))
 894                 {
 895                         // Don't add dot if there is no existing extension
 896                         if (ext.size() > 0)
 897                                 ext += _T(".");
 898                         ext += BACKUP_FILE_EXT;
 899                 }
 900
 901                 // Append time to filename if wanted so
 902                 // NOTE just adds timestamp at the moment as I couldn't figure out
 903                 // nice way to add a real time (invalid chars etc).
 904                 if (GetOptionsMgr()->GetBool(OPT_BACKUP_ADD_TIME))
 905                 {
 906                         struct tm tm;
 907                         time_t curtime = 0;
 908                         time(&curtime);
 909                         ::localtime_s(&tm, &curtime);
 910                         CString timestr;
 911                         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);
 912                         filename += _T("-");
 913                         filename += timestr;
 914                 }
 915
 916                 // Append filename and extension (+ optional .bak) to path
 917                 if ((bakPath.length() + filename.length() + ext.length())
 918                         < MAX_PATH_FULL)
 919                 {
 920                         success = true;
 921                         bakPath = paths::ConcatPath(bakPath, filename);
 922                         bakPath += _T(".");
 923                         bakPath += ext;
 924                 }
 925
 926                 if (success)
 927                 {
 928                         success = !!CopyFileW(TFile(pszPath).wpath().c_str(), TFile(bakPath).wpath().c_str(), FALSE);
 929                 }
 930
 931                 if (!success)
 932                 {
 933                         String msg = strutils::format_string1(
 934                                 _("Unable to backup original file:\n%1\n\nContinue anyway?"),
 935                                 pszPath);
 936                         if (AfxMessageBox(msg.c_str(), MB_YESNO | MB_ICONWARNING | MB_DONT_ASK_AGAIN) != IDYES)
 937                                 return false;
 938                 }
 939                 return true;
 940         }
 941
 942         // we got here because we're either not backing up of there was nothing to backup
 943         return true;
 944 }
 945
 946 /**
 947  * @brief Checks if path (file/folder) is read-only and asks overwriting it.
 948  *
 949  * @param strSavePath [in,out] Path where to save (file or folder)
 950  * @param bMultiFile [in] Single file or multiple files/folder
 951  * @param bApplyToAll [in,out] Apply last user selection for all items?
 952  * @return Users selection:
 953  * - IDOK: Item was not readonly, no actions
 954  * - IDYES/IDYESTOALL: Overwrite readonly item
 955  * - IDNO: User selected new filename (single file) or user wants to skip
 956  * - IDCANCEL: Cancel operation
 957  * @sa CMainFrame::SyncFileToVCS()
 958  * @sa CMergeDoc::DoSave()
 959  */
 960 int CMergeApp::HandleReadonlySave(String& strSavePath, bool bMultiFile,
 961                 bool &bApplyToAll)
 962 {
 963         CFileStatus status;
 964         int nRetVal = IDOK;
 965         bool bFileRO = false;
 966         bool bFileExists = false;
 967         String s;
 968         String str;
 969         CString title;
 970
 971         if (!strSavePath.empty())
 972         {
 973                 try
 974                 {
 975                         TFile file(strSavePath);
 976                         bFileExists = file.exists();
 977                         if (bFileExists)
 978                                 bFileRO = !file.canWrite();
 979                 }
 980                 catch (...)
 981                 {
 982                 }
 983         }
 984
 985         if (bFileExists && bFileRO)
 986         {
 987                 UINT userChoice = 0;
 988
 989                 // Don't ask again if its already asked
 990                 if (bApplyToAll)
 991                         userChoice = IDYES;
 992                 else
 993                 {
 994                         // Prompt for user choice
 995                         if (bMultiFile)
 996                         {
 997                                 // Multiple files or folder
 998                                 str = strutils::format_string1(_("%1\nis marked read-only. Would you like to override the read-only item?"), strSavePath);
 999                                 userChoice = AfxMessageBox(str.c_str(), MB_YESNOCANCEL |
1000                                                 MB_ICONWARNING | MB_DEFBUTTON3 | MB_DONT_ASK_AGAIN |
1001                                                 MB_YES_TO_ALL, IDS_SAVEREADONLY_MULTI);
1002                         }
1003                         else
1004                         {
1005                                 // Single file
1006                                 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);
1007                                 userChoice = AfxMessageBox(str.c_str(), MB_YESNOCANCEL |
1008                                                 MB_ICONWARNING | MB_DEFBUTTON2 | MB_DONT_ASK_AGAIN,
1009                                                 IDS_SAVEREADONLY_FMT);
1010                         }
1011                 }
1012                 switch (userChoice)
1013                 {
1014                 // Overwrite read-only file
1015                 case IDYESTOALL:
1016                         bApplyToAll = true;  // Don't ask again (no break here)
1017                 case IDYES:
1018                         CFile::GetStatus(strSavePath.c_str(), status);
1019                         status.m_mtime = 0;             // Avoid unwanted changes
1020                         status.m_attribute &= ~CFile::readOnly;
1021                         CFile::SetStatus(strSavePath.c_str(), status);
1022                         nRetVal = IDYES;
1023                         break;
1024
1025                 // Save to new filename (single) /skip this item (multiple)
1026                 case IDNO:
1027                         if (!bMultiFile)
1028                         {
1029                                 if (SelectFile(AfxGetMainWnd()->GetSafeHwnd(), s, false, strSavePath.c_str()))
1030                                 {
1031                                         strSavePath = s;
1032                                         nRetVal = IDNO;
1033                                 }
1034                                 else
1035                                         nRetVal = IDCANCEL;
1036                         }
1037                         else
1038                                 nRetVal = IDNO;
1039                         break;
1040
1041                 // Cancel saving
1042                 case IDCANCEL:
1043                         nRetVal = IDCANCEL;
1044                         break;
1045                 }
1046         }
1047         return nRetVal;
1048 }
1049
1050 /**
1051  * @brief Is specified file a project file?
1052  * @param [in] filepath Full path to file to check.
1053  * @return true if file is a projectfile.
1054  */
1055 bool CMergeApp::IsProjectFile(const String& filepath) const
1056 {
1057         String ext;
1058         paths::SplitFilename(filepath, nullptr, nullptr, &ext);
1059         if (strutils::compare_nocase(ext, ProjectFile::PROJECTFILE_EXT) == 0)
1060                 return true;
1061         else
1062                 return false;
1063 }
1064
1065 bool CMergeApp::LoadProjectFile(const String& sProject, ProjectFile &project)
1066 {
1067         if (sProject.empty())
1068                 return false;
1069
1070         try
1071         {
1072         project.Read(sProject);
1073         }
1074         catch (Poco::Exception& e)
1075         {
1076                 String sErr = _("Unknown error attempting to open project file");
1077                 sErr += ucr::toTString(e.displayText());
1078                 String msg = strutils::format_string2(_("Cannot open file\n%1\n\n%2"), sProject, sErr);
1079                 AfxMessageBox(msg.c_str(), MB_ICONSTOP);
1080                 return false;
1081         }
1082
1083         return true;
1084 }
1085
1086 bool CMergeApp::SaveProjectFile(const String& sProject, const ProjectFile &project)
1087 {
1088         try
1089         {
1090                 project.Save(sProject);
1091         }
1092         catch (Poco::Exception& e)
1093         {
1094                 String sErr = _("Unknown error attempting to save 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 /**
1105  * @brief Read project and perform comparison specified
1106  * @param [in] sProject Full path to project file.
1107  * @return `true` if loading project file and starting compare succeeded.
1108  */
1109 bool CMergeApp::LoadAndOpenProjectFile(const String& sProject, const String& sReportFile)
1110 {
1111         ProjectFile project;
1112         if (!LoadProjectFile(sProject, project))
1113                 return false;
1114
1115         bool rtn = true;
1116         for (auto& projItem : project.Items())
1117         {
1118                 PathContext tFiles;
1119                 bool bRecursive = false;
1120                 projItem.GetPaths(tFiles, bRecursive);
1121                 for (int i = 0; i < tFiles.GetSize(); ++i)
1122                 {
1123                         if (!paths::IsPathAbsolute(tFiles[i]))
1124                         {
1125                                 String sProjectDir = paths::GetParentPath(sProject);
1126                                 if (tFiles[i].substr(0, 1) == _T("\\"))
1127                                 {
1128                                         if (sProjectDir.length() > 1 && sProjectDir[1] == ':')
1129                                                 tFiles[i] = paths::ConcatPath(sProjectDir.substr(0, 2), tFiles[i]);
1130                                 }
1131                                 else
1132                                         tFiles[i] = paths::ConcatPath(sProjectDir, tFiles[i]);
1133                         }
1134                 }
1135                 bool bLeftReadOnly = projItem.GetLeftReadOnly();
1136                 bool bMiddleReadOnly = projItem.GetMiddleReadOnly();
1137                 bool bRightReadOnly = projItem.GetRightReadOnly();
1138                 if (projItem.HasFilter())
1139                 {
1140                         String filter = projItem.GetFilter();
1141                         filter = strutils::trim_ws(filter);
1142                         m_pGlobalFileFilter->SetFilter(filter);
1143                 }
1144                 if (projItem.HasSubfolders())
1145                         bRecursive = projItem.GetSubfolders() > 0;
1146
1147                 DWORD dwFlags[3] = {
1148                         static_cast<DWORD>(tFiles.GetPath(0).empty() ? FFILEOPEN_NONE : FFILEOPEN_PROJECT),
1149                         static_cast<DWORD>(tFiles.GetPath(1).empty() ? FFILEOPEN_NONE : FFILEOPEN_PROJECT),
1150                         static_cast<DWORD>(tFiles.GetPath(2).empty() ? FFILEOPEN_NONE : FFILEOPEN_PROJECT)
1151                 };
1152                 if (bLeftReadOnly)
1153                         dwFlags[0] |= FFILEOPEN_READONLY;
1154                 if (tFiles.GetSize() == 2)
1155                 {
1156                         if (bRightReadOnly)
1157                                 dwFlags[1] |= FFILEOPEN_READONLY;
1158                 }
1159                 else
1160                 {
1161                         if (bMiddleReadOnly)
1162                                 dwFlags[1] |= FFILEOPEN_READONLY;
1163                         if (bRightReadOnly)
1164                                 dwFlags[2] |= FFILEOPEN_READONLY;
1165                 }
1166
1167                 GetOptionsMgr()->SaveOption(OPT_CMP_INCLUDE_SUBDIRS, bRecursive);
1168
1169                 rtn &= GetMainFrame()->DoFileOpen(&tFiles, dwFlags, nullptr, sReportFile, bRecursive);
1170         }
1171
1172         AddToRecentProjectsMRU(sProject.c_str());
1173         return rtn;
1174 }
1175
1176 /**
1177  * @brief Return windows language ID of current WinMerge GUI language
1178  */
1179 WORD CMergeApp::GetLangId() const
1180 {
1181         return m_pLangDlg->GetLangId();
1182 }
1183
1184 /**
1185  * @brief Lang aware version of CStatusBar::SetIndicators()
1186  */
1187 void CMergeApp::SetIndicators(CStatusBar &sb, const UINT *rgid, int n) const
1188 {
1189         m_pLangDlg->SetIndicators(sb, rgid, n);
1190 }
1191
1192 /**
1193  * @brief Translate menu to current WinMerge GUI language
1194  */
1195 void CMergeApp::TranslateMenu(HMENU h) const
1196 {
1197         m_pLangDlg->TranslateMenu(h);
1198 }
1199
1200 /**
1201  * @brief Translate dialog to current WinMerge GUI language
1202  */
1203 void CMergeApp::TranslateDialog(HWND h) const
1204 {
1205         CWnd *pWnd = CWnd::FromHandle(h);
1206         pWnd->SetFont(const_cast<CFont *>(&m_fontGUI));
1207         pWnd->SendMessageToDescendants(WM_SETFONT, (WPARAM)m_fontGUI.m_hObject, MAKELPARAM(FALSE, 0), TRUE);
1208
1209         m_pLangDlg->TranslateDialog(h);
1210 }
1211
1212 /**
1213  * @brief Load string and translate to current WinMerge GUI language
1214  */
1215 String CMergeApp::LoadString(UINT id) const
1216 {
1217         return m_pLangDlg->LoadString(id);
1218 }
1219
1220 bool CMergeApp::TranslateString(const std::string& str, String& translated_str) const
1221 {
1222         return m_pLangDlg->TranslateString(str, translated_str);
1223 }
1224
1225 /**
1226  * @brief Load dialog caption and translate to current WinMerge GUI language
1227  */
1228 std::wstring CMergeApp::LoadDialogCaption(LPCTSTR lpDialogTemplateID) const
1229 {
1230         return m_pLangDlg->LoadDialogCaption(lpDialogTemplateID);
1231 }
1232
1233 /**
1234  * @brief Adds specified file to the recent projects list.
1235  * @param [in] sPathName Path to project file
1236  */
1237 void CMergeApp::AddToRecentProjectsMRU(LPCTSTR sPathName)
1238 {
1239         // sPathName will be added to the top of the MRU list.
1240         // If sPathName already exists in the MRU list, it will be moved to the top
1241         if (m_pRecentFileList != nullptr)    {
1242                 m_pRecentFileList->Add(sPathName);
1243                 m_pRecentFileList->WriteList();
1244         }
1245 }
1246
1247 void CMergeApp::SetupTempPath()
1248 {
1249         String instTemp = env::GetPerInstanceString(TempFolderPrefix);
1250         if (GetOptionsMgr()->GetBool(OPT_USE_SYSTEM_TEMP_PATH))
1251                 env::SetTemporaryPath(paths::ConcatPath(env::GetSystemTempPath(), instTemp));
1252         else
1253                 env::SetTemporaryPath(paths::ConcatPath(GetOptionsMgr()->GetString(OPT_CUSTOM_TEMP_PATH), instTemp));
1254 }
1255
1256 /**
1257  * @brief Handles menu selection from recent projects list
1258  * @param [in] nID Menu ID of the selected item
1259  */
1260 BOOL CMergeApp::OnOpenRecentFile(UINT nID)
1261 {
1262         return LoadAndOpenProjectFile(static_cast<const TCHAR *>(m_pRecentFileList->m_arrNames[nID-ID_FILE_PROJECT_MRU_FIRST]));
1263 }
1264
1265 /**
1266  * @brief Return if doc is in Merging/Editing mode
1267  */
1268 bool CMergeApp::GetMergingMode() const
1269 {
1270         return m_bMergingMode;
1271 }
1272
1273 /**
1274  * @brief Set doc to Merging/Editing mode
1275  */
1276 void CMergeApp::SetMergingMode(bool bMergingMode)
1277 {
1278         m_bMergingMode = bMergingMode;
1279         GetOptionsMgr()->SaveOption(OPT_MERGE_MODE, m_bMergingMode);
1280 }
1281
1282 /**
1283  * @brief Switch Merging/Editing mode and update
1284  * buffer read-only states accordingly
1285  */
1286 void CMergeApp::OnMergingMode()
1287 {
1288         bool bMergingMode = GetMergingMode();
1289
1290         if (!bMergingMode)
1291                 LangMessageBox(IDS_MERGE_MODE, MB_ICONINFORMATION | MB_DONT_DISPLAY_AGAIN);
1292         SetMergingMode(!bMergingMode);
1293 }
1294
1295 /**
1296  * @brief Update Menuitem for Merging Mode
1297  */
1298 void CMergeApp::OnUpdateMergingMode(CCmdUI* pCmdUI)
1299 {
1300         pCmdUI->Enable(true);
1301         pCmdUI->SetCheck(GetMergingMode());
1302 }
1303
1304 /**
1305  * @brief Update MergingMode UI in statusbar
1306  */
1307 void CMergeApp::OnUpdateMergingStatus(CCmdUI *pCmdUI)
1308 {
1309         String text = theApp.LoadString(IDS_MERGEMODE_MERGING);
1310         pCmdUI->SetText(text.c_str());
1311         pCmdUI->Enable(GetMergingMode());
1312 }
1313
1314 UINT CMergeApp::GetProfileInt(LPCTSTR lpszSection, LPCTSTR lpszEntry, int nDefault)
1315 {
1316         COptionsMgr *pOptions = GetOptionsMgr();
1317         String name = strutils::format(_T("%s/%s"), lpszSection, lpszEntry);
1318         if (!pOptions->Get(name).IsInt())
1319                 pOptions->InitOption(name, nDefault);
1320         return pOptions->GetInt(name);
1321 }
1322
1323 BOOL CMergeApp::WriteProfileInt(LPCTSTR lpszSection, LPCTSTR lpszEntry, int nValue)
1324 {
1325         COptionsMgr *pOptions = GetOptionsMgr();
1326         String name = strutils::format(_T("%s/%s"), lpszSection, lpszEntry);
1327         if (!pOptions->Get(name).IsInt())
1328                 pOptions->InitOption(name, nValue);
1329         return pOptions->SaveOption(name, nValue) == COption::OPT_OK;
1330 }
1331
1332 CString CMergeApp::GetProfileString(LPCTSTR lpszSection, LPCTSTR lpszEntry, LPCTSTR lpszDefault)
1333 {
1334         COptionsMgr *pOptions = GetOptionsMgr();
1335         String name = strutils::format(_T("%s/%s"), lpszSection, lpszEntry);
1336         if (!pOptions->Get(name).IsString())
1337                 pOptions->InitOption(name, lpszDefault ? lpszDefault : _T(""));
1338         return pOptions->GetString(name).c_str();
1339 }
1340
1341 BOOL CMergeApp::WriteProfileString(LPCTSTR lpszSection, LPCTSTR lpszEntry, LPCTSTR lpszValue)
1342 {
1343         COptionsMgr *pOptions = GetOptionsMgr();
1344         if (lpszEntry != nullptr)
1345         {
1346                 String name = strutils::format(_T("%s/%s"), lpszSection, lpszEntry);
1347                 if (!pOptions->Get(name).IsString())
1348                         pOptions->InitOption(name, lpszValue ? lpszValue : _T(""));
1349                 return pOptions->SaveOption(name, lpszValue ? lpszValue : _T("")) == COption::OPT_OK;
1350         }
1351         else
1352         {
1353                 for (auto& name : pOptions->GetNameList())
1354                 {
1355                         if (name.find(lpszSection) == 0)
1356                                 pOptions->RemoveOption(name);
1357                 }
1358
1359         }
1360         return TRUE;
1361 }