Make it possible to select (not)native file dialogs at run time

Add a new LyXRC variable use_native_filedialog (true by default) that
allows to select the kind of FileDialog we want at runtime.

src/LyXRC.cpp

@@ -195,6 +195,7 @@ LexerKeyword lyxrcTags[] = {
 	{ "\\use_converter_needauth", LyXRC::RC_USE_CONVERTER_NEEDAUTH },
 	{ "\\use_converter_needauth_forbidden", LyXRC::RC_USE_CONVERTER_NEEDAUTH_FORBIDDEN },
 	{ "\\use_lastfilepos", LyXRC::RC_USELASTFILEPOS },
+	{ "\\use_native_filedialog", LyXRC::RC_USE_NATIVE_FILEDIALOG },
 	{ "\\use_pixmap_cache", LyXRC::RC_USE_PIXMAP_CACHE },
 	// compatibility with versions older than 1.4.0 only
 	{ "\\use_system_colors", LyXRC::RC_USE_SYSTEM_COLORS },
@@ -272,6 +273,7 @@ void LyXRC::setDefaults()
 	num_lastfiles = 20;
 	check_lastfiles = true;
 	use_lastfilepos = true;
+	use_native_filedialog = true;
 	load_session = false;
 	make_backup = true;
 	save_compressed = false;
@@ -871,6 +873,9 @@ LyXRC::ReturnValues LyXRC::read(Lexer & lexrc, bool check_format)
 		case RC_ACCEPT_COMPOUND:
 			lexrc >> spellchecker_accept_compound;
 			break;
+		case RC_USE_NATIVE_FILEDIALOG:
+			lexrc >> use_native_filedialog;
+			break;
 		case RC_USE_SYSTEM_COLORS:
 			lexrc >> use_system_colors;
 			break;
@@ -2405,6 +2410,16 @@ void LyXRC::write(ostream & os, bool ignore_system_lyxrc, string const & name) c
 		if (tag != RC_LAST)
 			break;
 		// fall through
+	case RC_USE_NATIVE_FILEDIALOG:
+		if (ignore_system_lyxrc ||
+		    use_native_filedialog != system_lyxrc.use_native_filedialog) {
+			os << "\\use_native_filedialog "
+			   << convert<string>(use_native_filedialog)
+			   << '\n';
+		}
+		if (tag != RC_LAST)
+			break;
+		// fall through
 	case RC_USE_SYSTEM_COLORS:
 		if (ignore_system_lyxrc ||
 		    use_system_colors != system_lyxrc.use_system_colors) {
@@ -3015,6 +3030,7 @@ void actOnUpdatedPrefs(LyXRC const & lyxrc_orig, LyXRC const & lyxrc_new)
 	case LyXRC::RC_USE_CONVERTER_CACHE:
 	case LyXRC::RC_USE_CONVERTER_NEEDAUTH_FORBIDDEN:
 	case LyXRC::RC_USE_CONVERTER_NEEDAUTH:
+	case LyXRC::RC_USE_NATIVE_FILEDIALOG:
 	case LyXRC::RC_USE_SYSTEM_COLORS:
 	case LyXRC::RC_USE_TOOLTIP:
 	case LyXRC::RC_USE_PIXMAP_CACHE:

src/LyXRC.h

@@ -172,6 +172,7 @@ public:
 		RC_USE_CONVERTER_CACHE,
 		RC_USE_CONVERTER_NEEDAUTH_FORBIDDEN,
 		RC_USE_CONVERTER_NEEDAUTH,
+		RC_USE_NATIVE_FILEDIALOG,
 		RC_USE_SYSTEM_COLORS,
 		RC_USE_TOOLTIP,
 		RC_USE_PIXMAP_CACHE,
@@ -332,6 +333,8 @@ public:
 	bool use_tooltip;
 	/// Use the colors from current system theme?
 	bool use_system_colors;
+	/// use native file dialog or our own ?
+	bool use_native_filedialog;
 	/// Use pixmap cache?
 	bool use_pixmap_cache;
 	/// Spellchecker engine: aspell, hunspell, etc

src/frontends/qt4/FileDialog.cpp

@@ -16,6 +16,8 @@
 #include "LyXFileDialog.h"
 #include "qt_helpers.h"
 
+#include "LyXRC.h"
+
 #include "support/debug.h"
 #include "support/FileName.h"
 #include "support/filetools.h"
@@ -24,7 +26,9 @@
 
 #include <string>
 
-/** when this is defined, the code will use
+#include <QApplication>
+
+/** when LyXRC::use_native_filedialog is true, we use
  * QFileDialog::getOpenFileName and friends to create filedialogs.
  * Effects:
  * - the dialog does not use the quick directory buttons (Button
@@ -35,13 +39,6 @@
  *
  * Therefore there is a tradeoff in enabling or disabling this (JMarc)
  */
-#if defined(Q_OS_MAC) || defined(Q_OS_WIN)
-#define USE_NATIVE_FILEDIALOG 1
-#endif
-
-#ifdef USE_NATIVE_FILEDIALOG
-#include <QApplication>
-#endif
 
 namespace lyx {
 
@@ -91,38 +88,38 @@ FileDialog::Result FileDialog::save(QString const & path,
 	FileDialog::Result result;
 	result.first = FileDialog::Chosen;
 
-#ifdef USE_NATIVE_FILEDIALOG
+	if (lyxrc.use_native_filedialog) {
-	QString const startsWith = makeAbsPath(suggested, path);
+		QString const startsWith = makeAbsPath(suggested, path);
-	QString const name =
+		QString const name =
-		QFileDialog::getSaveFileName(qApp->focusWidget(),
+			QFileDialog::getSaveFileName(qApp->focusWidget(),
-		title_, startsWith, filters.join(";;"),
+					title_, startsWith, filters.join(";;"),
-		selectedFilter, QFileDialog::DontConfirmOverwrite);
+					selectedFilter, QFileDialog::DontConfirmOverwrite);
-	if (name.isNull())
+		if (name.isNull())
-		result.first = FileDialog::Later;
+			result.first = FileDialog::Later;
-	else
+		else
-		result.second = toqstr(os::internal_path(fromqstr(name)));
+			result.second = toqstr(os::internal_path(fromqstr(name)));
-#else
+	} else {
-	LyXFileDialog dlg(title_, path, filters, private_->b1, private_->b2);
+		LyXFileDialog dlg(title_, path, filters, private_->b1, private_->b2);
-	dlg.setFileMode(QFileDialog::AnyFile);
+		dlg.setFileMode(QFileDialog::AnyFile);
-	dlg.setAcceptMode(QFileDialog::AcceptSave);
+		dlg.setAcceptMode(QFileDialog::AcceptSave);
-	dlg.setConfirmOverwrite(false);
+		dlg.setConfirmOverwrite(false);
-	if (selectedFilter != 0 && !selectedFilter->isEmpty())
+		if (selectedFilter != 0 && !selectedFilter->isEmpty())
-		dlg.selectNameFilter(*selectedFilter);
+			dlg.selectNameFilter(*selectedFilter);
 
-	if (!suggested.isEmpty())
+		if (!suggested.isEmpty())
-		dlg.selectFile(suggested);
+			dlg.selectFile(suggested);
 
-	LYXERR(Debug::GUI, "Synchronous FileDialog: ");
+		LYXERR(Debug::GUI, "Synchronous FileDialog: ");
-	int res = dlg.exec();
+		int res = dlg.exec();
-	LYXERR(Debug::GUI, "result " << res);
+		LYXERR(Debug::GUI, "result " << res);
-	if (res == QDialog::Accepted)
+		if (res == QDialog::Accepted)
-		result.second = internalPath(dlg.selectedFiles()[0]);
+			result.second = internalPath(dlg.selectedFiles()[0]);
-	else
+		else
-		result.first = FileDialog::Later;
+			result.first = FileDialog::Later;
-	if (selectedFilter != 0)
+		if (selectedFilter != 0)
-		*selectedFilter = dlg.selectedNameFilter();
+			*selectedFilter = dlg.selectedNameFilter();
-	dlg.hide();
+		dlg.hide();
-#endif
+	}
 	return result;
 }
 
@@ -143,29 +140,29 @@ FileDialog::Result FileDialog::open(QString const & path,
 	FileDialog::Result result;
 	result.first = FileDialog::Chosen;
 
-#ifdef USE_NATIVE_FILEDIALOG
+	if (lyxrc.use_native_filedialog) {
-	QString const startsWith = makeAbsPath(suggested, path);
+		QString const startsWith = makeAbsPath(suggested, path);
-	QString const file = QFileDialog::getOpenFileName(qApp->focusWidget(),
+		QString const file = QFileDialog::getOpenFileName(qApp->focusWidget(),
-		title_, startsWith, filters.join(";;"));
+				title_, startsWith, filters.join(";;"));
-	if (file.isNull())
+		if (file.isNull())
-		result.first = FileDialog::Later;
+			result.first = FileDialog::Later;
-	else
+		else
-		result.second = internalPath(file);
+			result.second = internalPath(file);
-#else
+	} else {
-	LyXFileDialog dlg(title_, path, filters, private_->b1, private_->b2);
+		LyXFileDialog dlg(title_, path, filters, private_->b1, private_->b2);
 
-	if (!suggested.isEmpty())
+		if (!suggested.isEmpty())
-		dlg.selectFile(suggested);
+			dlg.selectFile(suggested);
 
-	LYXERR(Debug::GUI, "Synchronous FileDialog: ");
+		LYXERR(Debug::GUI, "Synchronous FileDialog: ");
-	int res = dlg.exec();
+		int res = dlg.exec();
-	LYXERR(Debug::GUI, "result " << res);
+		LYXERR(Debug::GUI, "result " << res);
-	if (res == QDialog::Accepted)
+		if (res == QDialog::Accepted)
-		result.second = internalPath(dlg.selectedFiles()[0]);
+			result.second = internalPath(dlg.selectedFiles()[0]);
-	else
+		else
-		result.first = FileDialog::Later;
+			result.first = FileDialog::Later;
-	dlg.hide();
+		dlg.hide();
-#endif
+	}
 	return result;
 }
 
@@ -178,33 +175,33 @@ FileDialog::Result FileDialog::opendir(QString const & path,
 	FileDialog::Result result;
 	result.first = FileDialog::Chosen;
 
-#ifdef USE_NATIVE_FILEDIALOG
+	if (lyxrc.use_native_filedialog) {
-	QString const startsWith = toqstr(makeAbsPath(fromqstr(suggested),
+		QString const startsWith =
-		fromqstr(path)).absFileName());
+			toqstr(makeAbsPath(fromqstr(suggested), fromqstr(path)).absFileName());
-	QString const dir = QFileDialog::getExistingDirectory(qApp->focusWidget(),
+		QString const dir =
-		title_, startsWith);
+			QFileDialog::getExistingDirectory(qApp->focusWidget(), title_, startsWith);
-	if (dir.isNull())
+		if (dir.isNull())
-		result.first = FileDialog::Later;
+			result.first = FileDialog::Later;
-	else
+		else
-		result.second = toqstr(os::internal_path(fromqstr(dir)));
+			result.second = toqstr(os::internal_path(fromqstr(dir)));
-#else
+	} else {
-	LyXFileDialog dlg(title_, path, QStringList(qt_("Directories")),
+		LyXFileDialog dlg(title_, path, QStringList(qt_("Directories")),
-		private_->b1, private_->b2);
+						  private_->b1, private_->b2);
 
-	dlg.setFileMode(QFileDialog::DirectoryOnly);
+		dlg.setFileMode(QFileDialog::DirectoryOnly);
 
-	if (!suggested.isEmpty())
+		if (!suggested.isEmpty())
-		dlg.selectFile(suggested);
+			dlg.selectFile(suggested);
 
-	LYXERR(Debug::GUI, "Synchronous FileDialog: ");
+		LYXERR(Debug::GUI, "Synchronous FileDialog: ");
-	int res = dlg.exec();
+		int res = dlg.exec();
-	LYXERR(Debug::GUI, "result " << res);
+		LYXERR(Debug::GUI, "result " << res);
-	if (res == QDialog::Accepted)
+		if (res == QDialog::Accepted)
-		result.second = internalPath(dlg.selectedFiles()[0]);
+			result.second = internalPath(dlg.selectedFiles()[0]);
-	else
+		else
-		result.first = FileDialog::Later;
+			result.first = FileDialog::Later;
-	dlg.hide();
+		dlg.hide();
-#endif
+	}
 	return result;
 }