diff options
Diffstat (limited to 'src/gui/dialogs/qfiledialog_win.cpp')
| -rw-r--r-- | src/gui/dialogs/qfiledialog_win.cpp | 212 |
1 files changed, 208 insertions, 4 deletions
diff --git a/src/gui/dialogs/qfiledialog_win.cpp b/src/gui/dialogs/qfiledialog_win.cpp index 6883bf9..6e9e776 100644 --- a/src/gui/dialogs/qfiledialog_win.cpp +++ b/src/gui/dialogs/qfiledialog_win.cpp @@ -60,6 +60,14 @@ #include <shlobj.h> +#include <shobjidl.h> +#include <objbase.h> + +#if defined(__IFileDialog_INTERFACE_DEFINED__) \ + && defined(__IFileOpenDialog_INTERFACE_DEFINED__) +#define USE_COMMON_ITEM_DIALOG +#endif + #ifdef Q_WS_WINCE #include <commdlg.h> # ifndef BFFM_SETSELECTION @@ -401,14 +409,202 @@ QString qt_win_get_save_file_name(const QFileDialogArgs &args, return fi.absoluteFilePath(); } + +#if defined(USE_COMMON_ITEM_DIALOG) + +typedef HRESULT (WINAPI *PtrSHCreateItemFromParsingName)(PCWSTR pszPath, IBindCtx *pbc, REFIID riid, void **ppv); +static PtrSHCreateItemFromParsingName pSHCreateItemFromParsingName = 0; + +static bool qt_win_set_IFileDialogOptions(IFileDialog *pfd, + const QString& initialSelection, + const QString& initialDirectory, + const QString& title, + const QStringList& filterLst, + QFileDialog::FileMode mode, + QFileDialog::Options options) +{ + if (!pSHCreateItemFromParsingName) { + // This function is available only in Vista & above. + QLibrary shellLib(QLatin1String("Shell32")); + pSHCreateItemFromParsingName = (PtrSHCreateItemFromParsingName) + shellLib.resolve("SHCreateItemFromParsingName"); + if (!pSHCreateItemFromParsingName) + return false; + } + HRESULT hr; + QString winfilters; + int numFilters = 0; + quint32 currentOffset = 0; + QList<quint32> offsets; + QStringList::ConstIterator it = filterLst.begin(); + // Create the native filter string and save offset to each entry. + for (; it != filterLst.end(); ++it) { + QString subfilter = *it; + if (!subfilter.isEmpty()) { + offsets<<currentOffset; + winfilters += subfilter; // The name of the filter. + winfilters += QChar(); + currentOffset += subfilter.size()+1; + offsets<<currentOffset; + QString spec = qt_win_extract_filter(subfilter); + winfilters += spec; // The actual filter spec. + winfilters += QChar(); + currentOffset += spec.size()+1; + numFilters++; + } + } + // Add the filters to the file dialog. + if (numFilters) { + wchar_t *szData = (wchar_t*)winfilters.utf16(); + COMDLG_FILTERSPEC *filterSpec = new COMDLG_FILTERSPEC[numFilters]; + for(int i = 0; i<numFilters; i++) { + filterSpec[i].pszName = szData+offsets[i*2]; + filterSpec[i].pszSpec = szData+offsets[(i*2)+1]; + } + hr = pfd->SetFileTypes(numFilters, filterSpec); + delete []filterSpec; + } + // Set the starting folder. + tInitDir = QDir::toNativeSeparators(initialDirectory); + if (!tInitDir.isEmpty()) { + IShellItem *psiDefaultFolder; + hr = pSHCreateItemFromParsingName((wchar_t*)tInitDir.utf16(), + NULL, + IID_PPV_ARGS(&psiDefaultFolder)); + + if (SUCCEEDED(hr)) { + hr = pfd->SetFolder(psiDefaultFolder); + psiDefaultFolder->Release(); + } + } + // Set the currently selected file. + QString initSel = QDir::toNativeSeparators(initialSelection); + if (!initSel.isEmpty()) { + initSel.remove(QLatin1Char('<')); + initSel.remove(QLatin1Char('>')); + initSel.remove(QLatin1Char('\"')); + initSel.remove(QLatin1Char('|')); + } + if (!initSel.isEmpty()) { + hr = pfd->SetFileName((wchar_t*)initSel.utf16()); + } + // Set the title for the file dialog. + if (!title.isEmpty()) { + hr = pfd->SetTitle((wchar_t*)title.utf16()); + } + // Set other flags for the dialog. + DWORD newOptions; + hr = pfd->GetOptions(&newOptions); + if (SUCCEEDED(hr)) { + newOptions |= (FOS_NOCHANGEDIR | FOS_NOREADONLYRETURN); + if (mode == QFileDialog::ExistingFile || + mode == QFileDialog::ExistingFiles) + newOptions |= (FOS_FILEMUSTEXIST | FOS_PATHMUSTEXIST); + if (mode == QFileDialog::ExistingFiles) + newOptions |= FOS_ALLOWMULTISELECT; + if (!(options & QFileDialog::DontConfirmOverwrite)) + newOptions |= FOS_OVERWRITEPROMPT; + hr = pfd->SetOptions(newOptions); + } + return SUCCEEDED(hr); +} + +QStringList qt_win_CID_get_open_file_names(const QFileDialogArgs &args, + QString *initialDirectory, + const QStringList &filterList, + QString *selectedFilter, + int selectedFilterIndex) +{ + QStringList result; + QDialog modal_widget; + modal_widget.setAttribute(Qt::WA_NoChildEventsForParent, true); + modal_widget.setParent(args.parent, Qt::Window); + QApplicationPrivate::enterModal(&modal_widget); + // Multiple selection is allowed only in IFileOpenDialog. + IFileOpenDialog *pfd; + HRESULT hr = CoCreateInstance(CLSID_FileOpenDialog, + NULL, + CLSCTX_INPROC_SERVER, + IID_PPV_ARGS(&pfd)); + + if (SUCCEEDED(hr)) { + qt_win_set_IFileDialogOptions(pfd, args.selection, + args.directory, args.caption, + filterList, QFileDialog::ExistingFiles, + args.options); + // Set the currently selected filter (one-based index). + hr = pfd->SetFileTypeIndex(selectedFilterIndex+1); + QWidget *parentWindow = args.parent; + if (parentWindow) + parentWindow = parentWindow->window(); + else + parentWindow = QApplication::activeWindow(); + // Show the file dialog. + hr = pfd->Show(parentWindow ? parentWindow->winId() : 0); + if (SUCCEEDED(hr)) { + // Retrieve the results. + IShellItemArray *psiaResults; + hr = pfd->GetResults(&psiaResults); + if (SUCCEEDED(hr)) { + DWORD numItems = 0; + psiaResults->GetCount(&numItems); + for (DWORD i = 0; i<numItems; i++) { + IShellItem *psi = 0; + hr = psiaResults->GetItemAt(i, &psi); + if (SUCCEEDED(hr)) { + // Retrieve the file name from shell item. + wchar_t *pszPath; + hr = psi->GetDisplayName(SIGDN_FILESYSPATH, &pszPath); + if (SUCCEEDED(hr)) { + QString fileName = QString::fromWCharArray(pszPath); + result.append(fileName); + CoTaskMemFree(pszPath); + } + psi->Release(); // Free the current item. + } + } + psiaResults->Release(); // Free the array of items. + } + } + } + QApplicationPrivate::leaveModal(&modal_widget); + + qt_win_eatMouseMove(); + + if (!result.isEmpty()) { + // Retrieve the current folder name. + IShellItem *psi = 0; + hr = pfd->GetFolder(&psi); + if (SUCCEEDED(hr)) { + wchar_t *pszPath; + hr = psi->GetDisplayName(SIGDN_FILESYSPATH, &pszPath); + if (SUCCEEDED(hr)) { + *initialDirectory = QString::fromWCharArray(pszPath); + CoTaskMemFree(pszPath); + } + psi->Release(); + } + // Retrieve the currently selected filter. + if (selectedFilter) { + quint32 filetype = 0; + hr = pfd->GetFileTypeIndex(&filetype); + if (SUCCEEDED(hr) && filetype && filetype <= (quint32)filterList.length()) { + // This is a one-based index, not zero-based. + *selectedFilter = filterList[filetype-1]; + } + } + } + return result; +} + +#endif + QStringList qt_win_get_open_file_names(const QFileDialogArgs &args, QString *initialDirectory, QString *selectedFilter) { - QStringList result; QFileInfo fi; QDir dir; - QString isel; if (initialDirectory && initialDirectory->left(5) == QLatin1String("file:")) initialDirectory->remove(0, 5); @@ -416,7 +612,6 @@ QStringList qt_win_get_open_file_names(const QFileDialogArgs &args, if (initialDirectory && !fi.isDir()) { *initialDirectory = fi.absolutePath(); - isel = fi.fileName(); } if (!fi.exists()) @@ -424,12 +619,21 @@ QStringList qt_win_get_open_file_names(const QFileDialogArgs &args, DWORD selFilIdx = 0; + QStringList filterLst = qt_win_make_filters_list(args.filter); int idx = 0; if (selectedFilter) { - QStringList filterLst = qt_win_make_filters_list(args.filter); idx = filterLst.indexOf(*selectedFilter); } + // Windows Vista (& above) allows users to search from file dialogs. If user selects + // multiple files belonging to different folders from these search results, the + // GetOpenFileName() will return only one folder name for all the files. To retrieve + // the correct path for all selected files, we have to use Common Item Dialog interfaces. +#if defined(USE_COMMON_ITEM_DIALOG) + if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA && QSysInfo::WindowsVersion < QSysInfo::WV_NT_based) + return qt_win_CID_get_open_file_names(args, initialDirectory, filterLst, selectedFilter, idx); +#endif + QStringList result; QDialog modal_widget; modal_widget.setAttribute(Qt::WA_NoChildEventsForParent, true); modal_widget.setParent(args.parent, Qt::Window); |