X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c9f7896861f734ce044ee8601ba2d8a6959c9d9e..4a2d030adfa836f6ada1830c9057170d053bcc64:/src/msw/filedlg.cpp?ds=sidebyside diff --git a/src/msw/filedlg.cpp b/src/msw/filedlg.cpp index e1c40bf3a5..7327c7bdd7 100644 --- a/src/msw/filedlg.cpp +++ b/src/msw/filedlg.cpp @@ -4,7 +4,6 @@ // Author: Julian Smart // Modified by: // Created: 01/02/97 -// RCS-ID: $Id$ // Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -43,8 +42,11 @@ #include #include +#include "wx/dynlib.h" #include "wx/filename.h" +#include "wx/scopeguard.h" #include "wx/tokenzr.h" +#include "wx/modalhook.h" // ---------------------------------------------------------------------------- // constants @@ -64,7 +66,8 @@ // globals // ---------------------------------------------------------------------------- -// standard dialog size +// standard dialog size for the old Windows systems where the dialog wasn't +// resizable static wxRect gs_rectDialog(0, 0, 428, 266); // ============================================================================ @@ -73,6 +76,78 @@ static wxRect gs_rectDialog(0, 0, 428, 266); IMPLEMENT_CLASS(wxFileDialog, wxFileDialogBase) +// ---------------------------------------------------------------------------- + +namespace +{ + +#if wxUSE_DYNLIB_CLASS + +typedef BOOL (WINAPI *GetProcessUserModeExceptionPolicy_t)(LPDWORD); +typedef BOOL (WINAPI *SetProcessUserModeExceptionPolicy_t)(DWORD); + +GetProcessUserModeExceptionPolicy_t gs_pfnGetProcessUserModeExceptionPolicy + = (GetProcessUserModeExceptionPolicy_t) -1; + +SetProcessUserModeExceptionPolicy_t gs_pfnSetProcessUserModeExceptionPolicy + = (SetProcessUserModeExceptionPolicy_t) -1; + +DWORD gs_oldExceptionPolicyFlags = 0; + +bool gs_changedPolicy = false; + +#endif // #if wxUSE_DYNLIB_CLASS + +/* +Since Windows 7 by default (callback) exceptions aren't swallowed anymore +with native x64 applications. Exceptions can occur in a file dialog when +using the hook procedure in combination with third-party utilities. +Since Windows 7 SP1 the swallowing of exceptions can be enabled again +by using SetProcessUserModeExceptionPolicy. +*/ +void ChangeExceptionPolicy() +{ +#if wxUSE_DYNLIB_CLASS + gs_changedPolicy = false; + + wxLoadedDLL dllKernel32(wxT("kernel32.dll")); + + if ( gs_pfnGetProcessUserModeExceptionPolicy + == (GetProcessUserModeExceptionPolicy_t) -1) + { + wxDL_INIT_FUNC(gs_pfn, GetProcessUserModeExceptionPolicy, dllKernel32); + wxDL_INIT_FUNC(gs_pfn, SetProcessUserModeExceptionPolicy, dllKernel32); + } + + if ( !gs_pfnGetProcessUserModeExceptionPolicy + || !gs_pfnSetProcessUserModeExceptionPolicy + || !gs_pfnGetProcessUserModeExceptionPolicy(&gs_oldExceptionPolicyFlags) ) + { + return; + } + + if ( gs_pfnSetProcessUserModeExceptionPolicy(gs_oldExceptionPolicyFlags + | 0x1 /* PROCESS_CALLBACK_FILTER_ENABLED */ ) ) + { + gs_changedPolicy = true; + } + +#endif // wxUSE_DYNLIB_CLASS +} + +void RestoreExceptionPolicy() +{ +#if wxUSE_DYNLIB_CLASS + if (gs_changedPolicy) + { + gs_changedPolicy = false; + (void) gs_pfnSetProcessUserModeExceptionPolicy(gs_oldExceptionPolicyFlags); + } +#endif // wxUSE_DYNLIB_CLASS +} + +} // unnamed namespace + // ---------------------------------------------------------------------------- // hook function for moving the dialog // ---------------------------------------------------------------------------- @@ -85,22 +160,35 @@ wxFileDialogHookFunction(HWND hDlg, { switch ( iMsg ) { +#ifndef __WXWINCE__ + case WM_INITDIALOG: + { + OPENFILENAME* ofn = reinterpret_cast(lParam); + reinterpret_cast(ofn->lCustData) + ->MSWOnInitDialogHook((WXHWND)hDlg); + } + break; +#endif // __WXWINCE__ + case WM_NOTIFY: { - OFNOTIFY *pNotifyCode = wx_reinterpret_cast(OFNOTIFY *, lParam); - if ( pNotifyCode->hdr.code == CDN_INITDONE ) + OFNOTIFY* const + pNotifyCode = reinterpret_cast(lParam); + wxFileDialog* const + dialog = reinterpret_cast( + pNotifyCode->lpOFN->lCustData + ); + + switch ( pNotifyCode->hdr.code ) { - // note that we need to move the parent window: hDlg is a - // child of it when OFN_EXPLORER is used - ::SetWindowPos - ( - ::GetParent(hDlg), - HWND_TOP, - gs_rectDialog.x, gs_rectDialog.y, - 0, 0, - SWP_NOZORDER | SWP_NOSIZE - ); - } + case CDN_INITDONE: + dialog->MSWOnInitDone((WXHWND)hDlg); + break; + + case CDN_SELCHANGE: + dialog->MSWOnSelChange((WXHWND)hDlg); + break; + } } break; @@ -138,21 +226,22 @@ wxFileDialog::wxFileDialog(wxWindow *parent, // NB: all style checks are done by wxFileDialogBase::Create m_bMovedWindow = false; + m_centreDir = 0; // Must set to zero, otherwise the wx routines won't size the window // the second time you call the file dialog, because it thinks it is // already at the requested size.. (when centering) gs_rectDialog.x = gs_rectDialog.y = 0; - } + void wxFileDialog::GetPaths(wxArrayString& paths) const { paths.Empty(); wxString dir(m_dir); - if ( m_dir.Last() != _T('\\') ) - dir += _T('\\'); + if ( m_dir.empty() || m_dir.Last() != wxT('\\') ) + dir += wxT('\\'); size_t count = m_fileNames.GetCount(); for ( size_t n = 0; n < count; n++ ) @@ -169,14 +258,6 @@ void wxFileDialog::GetFilenames(wxArrayString& files) const files = m_fileNames; } -void wxFileDialog::SetPath(const wxString& path) -{ - wxString ext; - wxSplitPath(path, &m_dir, &m_fileName, &ext); - if ( !ext.empty() ) - m_fileName << _T('.') << ext; -} - void wxFileDialog::DoGetPosition(int *x, int *y) const { if ( x ) @@ -185,7 +266,6 @@ void wxFileDialog::DoGetPosition(int *x, int *y) const *y = gs_rectDialog.y; } - void wxFileDialog::DoGetSize(int *width, int *height) const { if ( width ) @@ -196,19 +276,89 @@ void wxFileDialog::DoGetSize(int *width, int *height) const void wxFileDialog::DoMoveWindow(int x, int y, int WXUNUSED(w), int WXUNUSED(h)) { - m_bMovedWindow = true; - gs_rectDialog.x = x; gs_rectDialog.y = y; - // size of the dialog can't be changed because the controls are not laid - // out correctly then + // our HWND is only set when we're called from MSWOnInitDone(), test if + // this is the case + HWND hwnd = GetHwnd(); + if ( hwnd ) + { + // size of the dialog can't be changed because the controls are not + // laid out correctly then + ::SetWindowPos(hwnd, HWND_TOP, x, y, 0, 0, SWP_NOZORDER | SWP_NOSIZE); + } + else // just remember that we were requested to move the window + { + m_bMovedWindow = true; + + // if Centre() had been called before, it shouldn't be taken into + // account now + m_centreDir = 0; + } } -// helper used below in ShowModal(): style is used to determine whether to show -// the "Save file" dialog (if it contains wxFD_SAVE bit) or "Open file" one; -// returns true on success or false on failure in which case err is filled with -// the CDERR_XXX constant +void wxFileDialog::DoCentre(int dir) +{ + m_centreDir = dir; + m_bMovedWindow = true; + + // it's unnecessary to do anything else at this stage as we'll redo it in + // MSWOnInitDone() anyhow +} + +void wxFileDialog::MSWOnInitDone(WXHWND hDlg) +{ + // note the dialog is the parent window: hDlg is a child of it when + // OFN_EXPLORER is used + HWND hFileDlg = ::GetParent((HWND)hDlg); + + // set HWND so that our DoMoveWindow() works correctly + SetHWND((WXHWND)hFileDlg); + + if ( m_centreDir ) + { + // now we have the real dialog size, remember it + RECT rect; + GetWindowRect(hFileDlg, &rect); + gs_rectDialog = wxRectFromRECT(rect); + + // and position the window correctly: notice that we must use the base + // class version as our own doesn't do anything except setting flags + wxFileDialogBase::DoCentre(m_centreDir); + } + else // need to just move it to the correct place + { + SetPosition(gs_rectDialog.GetPosition()); + } + + // Call selection change handler so that update handler will be + // called once with no selection. + MSWOnSelChange(hDlg); + + // we shouldn't destroy this HWND + SetHWND(NULL); +} + +void wxFileDialog::MSWOnSelChange(WXHWND hDlg) +{ + TCHAR buf[MAX_PATH]; + LRESULT len = SendMessage(::GetParent(hDlg), CDM_GETFILEPATH, + MAX_PATH, reinterpret_cast(buf)); + + if ( len > 0 ) + m_currentlySelectedFilename = buf; + else + m_currentlySelectedFilename.clear(); + + if ( m_extraControl ) + m_extraControl->UpdateWindowUI(wxUPDATE_UI_RECURSE); +} + +// helper used below in ShowCommFileDialog(): style is used to determine +// whether to show the "Save file" dialog (if it contains wxFD_SAVE bit) or +// "Open file" one; returns true on success or false on failure in which case +// err is filled with the CDERR_XXX constant static bool DoShowCommFileDialog(OPENFILENAME *of, long style, DWORD *err) { if ( style & wxFD_SAVE ? GetSaveFileName(of) : GetOpenFileName(of) ) @@ -263,8 +413,73 @@ static bool DoShowCommFileDialog(OPENFILENAME *of, long style, DWORD *err) static DWORD gs_ofStructSize = wxOPENFILENAME_V5_SIZE; #endif // __WXWINCE__ || __WIN64__/!... +static bool ShowCommFileDialog(OPENFILENAME *of, long style) +{ + DWORD errCode; + bool success = DoShowCommFileDialog(of, style, &errCode); + +#ifdef wxTRY_SMALLER_OPENFILENAME + // the system might be too old to support the new version file dialog + // boxes, try with the old size + if ( !success && errCode == CDERR_STRUCTSIZE && + of->lStructSize != wxOPENFILENAME_V4_SIZE ) + { + of->lStructSize = wxOPENFILENAME_V4_SIZE; + + success = DoShowCommFileDialog(of, style, &errCode); + + if ( success || !errCode ) + { + // use this struct size for subsequent dialogs + gs_ofStructSize = of->lStructSize; + } + } +#endif // wxTRY_SMALLER_OPENFILENAME + + if ( !success && + // FNERR_INVALIDFILENAME is not defined under CE (besides we don't + // use CommDlgExtendedError() there anyhow) +#ifndef __WXWINCE__ + errCode == FNERR_INVALIDFILENAME && +#endif // !__WXWINCE__ + of->lpstrFile[0] ) + { + // this can happen if the default file name is invalid, try without it + // now + of->lpstrFile[0] = wxT('\0'); + success = DoShowCommFileDialog(of, style, &errCode); + } + + if ( !success ) + { + // common dialog failed - why? + if ( errCode != 0 ) + { + wxLogError(_("File dialog failed with error code %0lx."), errCode); + } + //else: it was just cancelled + + return false; + } + + return true; +} + +#ifndef __WXWINCE__ +void wxFileDialog::MSWOnInitDialogHook(WXHWND hwnd) +{ + SetHWND(hwnd); + + CreateExtraControl(); + + SetHWND(NULL); +} +#endif // __WXWINCE__ + int wxFileDialog::ShowModal() { + WX_HOOK_MODAL_DIALOG(); + HWND hWnd = 0; if (m_parent) hWnd = (HWND) m_parent->GetHWND(); if (!hWnd && wxTheApp->GetTopWindow()) @@ -288,14 +503,17 @@ int wxFileDialog::ShowModal() in the upper left of the frame, it does not center automatically. */ - if (m_bMovedWindow) // we need these flags. + if (m_bMovedWindow || HasExtraControlCreator()) // we need these flags. { + ChangeExceptionPolicy(); msw_flags |= OFN_EXPLORER|OFN_ENABLEHOOK; #ifndef __WXWINCE__ msw_flags |= OFN_ENABLESIZING; #endif } + wxON_BLOCK_EXIT0(RestoreExceptionPolicy); + if ( HasFdFlag(wxFD_MULTIPLE) ) { // OFN_EXPLORER must always be specified with OFN_ALLOWMULTISELECT @@ -320,10 +538,40 @@ int wxFileDialog::ShowModal() of.lStructSize = gs_ofStructSize; of.hwndOwner = hWnd; - of.lpstrTitle = WXSTRINGCAST m_message; + of.lpstrTitle = m_message.t_str(); of.lpstrFileTitle = titleBuffer; of.nMaxFileTitle = wxMAXFILE + 1 + wxMAXEXT; +#ifndef __WXWINCE__ + GlobalPtr hgbl; + if ( HasExtraControlCreator() ) + { + msw_flags |= OFN_ENABLETEMPLATEHANDLE; + + hgbl.Init(256, GMEM_ZEROINIT); + GlobalPtrLock hgblLock(hgbl); + LPDLGTEMPLATE lpdt = static_cast(hgblLock.Get()); + + // Define a dialog box. + + lpdt->style = DS_CONTROL | WS_CHILD | WS_CLIPSIBLINGS; + lpdt->cdit = 0; // Number of controls + lpdt->x = 0; + lpdt->y = 0; + + // convert the size of the extra controls to the dialog units + const wxSize extraSize = GetExtraControlSize(); + const LONG baseUnits = ::GetDialogBaseUnits(); + lpdt->cx = ::MulDiv(extraSize.x, 4, LOWORD(baseUnits)); + lpdt->cy = ::MulDiv(extraSize.y, 8, HIWORD(baseUnits)); + + // after the DLGTEMPLATE there are 3 additional WORDs for dialog menu, + // class and title, all three set to zeros. + + of.hInstance = (HINSTANCE)lpdt; + } +#endif // __WXWINCE__ + // Convert forward slashes to backslashes (file selector doesn't like // forward slashes) and also squeeze multiple consecutive slashes into one // as it doesn't like two backslashes in a row neither @@ -336,17 +584,17 @@ int wxFileDialog::ShowModal() wxChar ch = m_dir[i]; switch ( ch ) { - case _T('/'): + case wxT('/'): // convert to backslash - ch = _T('\\'); + ch = wxT('\\'); // fall through - case _T('\\'): + case wxT('\\'): while ( i < len - 1 ) { wxChar chNext = m_dir[i + 1]; - if ( chNext != _T('\\') && chNext != _T('/') ) + if ( chNext != wxT('\\') && chNext != wxT('/') ) break; // ignore the next one, unless it is at the start of a UNC path @@ -367,12 +615,13 @@ int wxFileDialog::ShowModal() of.Flags = msw_flags; of.lpfnHook = wxFileDialogHookFunction; + of.lCustData = (LPARAM)this; wxArrayString wildDescriptions, wildFilters; size_t items = wxParseCommonDialogsFilter(m_wildCard, wildDescriptions, wildFilters); - wxASSERT_MSG( items > 0 , _T("empty wildcard list") ); + wxASSERT_MSG( items > 0 , wxT("empty wildcard list") ); wxString filterBuffer; @@ -391,13 +640,12 @@ int wxFileDialog::ShowModal() } } - of.lpstrFilter = (LPTSTR)filterBuffer.wx_str(); + of.lpstrFilter = filterBuffer.t_str(); of.nFilterIndex = m_filterIndex + 1; //=== Setting defaultFileName >>========================================= - wxStrncpy( fileNameBuffer, (const wxChar *)m_fileName, wxMAXPATH-1 ); - fileNameBuffer[ wxMAXPATH-1 ] = wxT('\0'); + wxStrlcpy(fileNameBuffer, m_fileName.c_str(), WXSIZEOF(fileNameBuffer)); of.lpstrFile = fileNameBuffer; // holds returned filename of.nMaxFile = wxMAXPATH; @@ -409,7 +657,7 @@ int wxFileDialog::ShowModal() wxString defextBuffer; // we need it to be alive until GetSaveFileName()! if (HasFdFlag(wxFD_SAVE)) { - const wxChar* extension = filterBuffer; + const wxChar* extension = filterBuffer.t_str(); int maxFilter = (int)(of.nFilterIndex*2L) - 1; for( int i = 0; i < maxFilter; i++ ) // get extension @@ -429,120 +677,85 @@ int wxFileDialog::ShowModal() //== Execute FileDialog >>================================================= - DWORD errCode; - bool success = DoShowCommFileDialog(&of, m_windowStyle, &errCode); + if ( !ShowCommFileDialog(&of, m_windowStyle) ) + return wxID_CANCEL; -#ifdef wxTRY_SMALLER_OPENFILENAME - // the system might be too old to support the new version file dialog - // boxes, try with the old size - if ( !success && errCode == CDERR_STRUCTSIZE && - of.lStructSize != wxOPENFILENAME_V4_SIZE ) + // GetOpenFileName will always change the current working directory on + // (according to MSDN) "Windows NT 4.0/2000/XP" because the flag + // OFN_NOCHANGEDIR has no effect. If the user did not specify + // wxFD_CHANGE_DIR let's restore the current working directory to what it + // was before the dialog was shown. + if ( msw_flags & OFN_NOCHANGEDIR ) { - of.lStructSize = wxOPENFILENAME_V4_SIZE; - - success = DoShowCommFileDialog(&of, m_windowStyle, &errCode); - - if ( success || !errCode ) - { - // use this struct size for subsequent dialogs - gs_ofStructSize = of.lStructSize; - } + wxSetWorkingDirectory(cwdOrig); } -#endif // wxTRY_SMALLER_OPENFILENAME - - if ( success ) - { - // GetOpenFileName will always change the current working directory on - // (according to MSDN) "Windows NT 4.0/2000/XP" because the flag - // OFN_NOCHANGEDIR has no effect. If the user did not specify - // wxFD_CHANGE_DIR let's restore the current working directory to what it - // was before the dialog was shown. - if ( msw_flags & OFN_NOCHANGEDIR ) - { - wxSetWorkingDirectory(cwdOrig); - } - m_fileNames.Empty(); + m_fileNames.Empty(); - if ( ( HasFdFlag(wxFD_MULTIPLE) ) && + if ( ( HasFdFlag(wxFD_MULTIPLE) ) && #if defined(OFN_EXPLORER) - ( fileNameBuffer[of.nFileOffset-1] == wxT('\0') ) + ( fileNameBuffer[of.nFileOffset-1] == wxT('\0') ) #else - ( fileNameBuffer[of.nFileOffset-1] == wxT(' ') ) + ( fileNameBuffer[of.nFileOffset-1] == wxT(' ') ) #endif // OFN_EXPLORER - ) - { + ) + { #if defined(OFN_EXPLORER) - m_dir = fileNameBuffer; - i = of.nFileOffset; - m_fileName = &fileNameBuffer[i]; - m_fileNames.Add(m_fileName); - i += m_fileName.length() + 1; + m_dir = fileNameBuffer; + i = of.nFileOffset; + m_fileName = &fileNameBuffer[i]; + m_fileNames.Add(m_fileName); + i += m_fileName.length() + 1; - while (fileNameBuffer[i] != wxT('\0')) - { - m_fileNames.Add(&fileNameBuffer[i]); - i += wxStrlen(&fileNameBuffer[i]) + 1; - } + while (fileNameBuffer[i] != wxT('\0')) + { + m_fileNames.Add(&fileNameBuffer[i]); + i += wxStrlen(&fileNameBuffer[i]) + 1; + } #else - wxStringTokenizer toke(fileNameBuffer, _T(" \t\r\n")); - m_dir = toke.GetNextToken(); - m_fileName = toke.GetNextToken(); - m_fileNames.Add(m_fileName); + wxStringTokenizer toke(fileNameBuffer, wxT(" \t\r\n")); + m_dir = toke.GetNextToken(); + m_fileName = toke.GetNextToken(); + m_fileNames.Add(m_fileName); - while (toke.HasMoreTokens()) - m_fileNames.Add(toke.GetNextToken()); + while (toke.HasMoreTokens()) + m_fileNames.Add(toke.GetNextToken()); #endif // OFN_EXPLORER - wxString dir(m_dir); - if ( m_dir.Last() != _T('\\') ) - dir += _T('\\'); - - m_path = dir + m_fileName; - m_filterIndex = (int)of.nFilterIndex - 1; - } - else - { - //=== Adding the correct extension >>================================= + wxString dir(m_dir); + if ( m_dir.Last() != wxT('\\') ) + dir += wxT('\\'); - m_filterIndex = (int)of.nFilterIndex - 1; + m_path = dir + m_fileName; + m_filterIndex = (int)of.nFilterIndex - 1; + } + else + { + //=== Adding the correct extension >>================================= - if ( !of.nFileExtension || - (of.nFileExtension && fileNameBuffer[of.nFileExtension] == wxT('\0')) ) - { - // User has typed a filename without an extension: - const wxChar* extension = filterBuffer; - int maxFilter = (int)(of.nFilterIndex*2L) - 1; + m_filterIndex = (int)of.nFilterIndex - 1; - for( int i = 0; i < maxFilter; i++ ) // get extension - extension = extension + wxStrlen( extension ) + 1; + if ( !of.nFileExtension || + (of.nFileExtension && fileNameBuffer[of.nFileExtension] == wxT('\0')) ) + { + // User has typed a filename without an extension: + const wxChar* extension = filterBuffer.t_str(); + int maxFilter = (int)(of.nFilterIndex*2L) - 1; - m_fileName = AppendExtension(fileNameBuffer, extension); - wxStrncpy(fileNameBuffer, m_fileName.c_str(), wxMin(m_fileName.length(), wxMAXPATH-1)); - fileNameBuffer[wxMin(m_fileName.length(), wxMAXPATH-1)] = wxT('\0'); - } + for( int i = 0; i < maxFilter; i++ ) // get extension + extension = extension + wxStrlen( extension ) + 1; - m_path = fileNameBuffer; - m_fileName = wxFileNameFromPath(fileNameBuffer); - m_fileNames.Add(m_fileName); - m_dir = wxPathOnly(fileNameBuffer); + m_fileName = AppendExtension(fileNameBuffer, extension); + wxStrlcpy(fileNameBuffer, m_fileName.c_str(), WXSIZEOF(fileNameBuffer)); } - } -#ifdef __WXDEBUG__ - else - { - // common dialog failed - why? - if ( errCode != 0 ) - { - // this msg is only for developers so don't translate it - wxLogError(wxT("Common dialog failed with error code %0lx."), - errCode); + + m_path = fileNameBuffer; + m_fileName = wxFileNameFromPath(fileNameBuffer); + m_fileNames.Add(m_fileName); + m_dir = wxPathOnly(fileNameBuffer); } - //else: it was just cancelled - } -#endif // __WXDEBUG__ - return success ? wxID_OK : wxID_CANCEL; + return wxID_OK; }