Transfer some GUI oriented code from core to frontend.

* Application/GuiApplication:
- restoreGuiSession(): new method for session restoration.

* LyXView/GuiView
- loadDocument(): new pure virtual interface

* lyxFunc:
- loadAndViewFile(): transfered to GuiView::loadDocument()
- openDocument(): transfered to GuiView.

* LyX.h
- Impl::files_to_load_ : now a simple vector<string>.
- restoreGuiSession(): removed.
- execBatchCommands(): simplified and make use of Application::restoreGuiSession().



git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@22816 a592a061-630c-0410-9148-cb99ea01b6c8

src/LyX.cpp

@@ -147,7 +147,7 @@ struct LyX::Impl
 	boost::scoped_ptr<Session> session_;
 
 	/// Files to load at start.
-	vector<FileName> files_to_load_;
+	vector<string> files_to_load_;
 
 	/// The messages translators.
 	map<string, Messages> messages_;
@@ -525,24 +525,22 @@ int LyX::init(int & argc, char * argv[])
 	if (!success)
 		return EXIT_FAILURE;
 
-	for (int argi = argc - 1; argi >= 1; --argi) {
-		// get absolute path of file and add ".lyx" to
-		// the filename if necessary
-		pimpl_->files_to_load_.push_back(fileSearch(string(),
-			os::internal_path(to_utf8(from_local8bit(argv[argi]))),
-			"lyx", may_not_exist));
-	}
+	// Remaining arguments are assumed to be files to load.
+	for (int argi = argc - 1; argi >= 1; --argi)
+		pimpl_->files_to_load_.push_back(to_utf8(from_local8bit(argv[argi])));
 
-	if (first_start)
-		pimpl_->files_to_load_.push_back(i18nLibFileSearch("examples", "splash.lyx"));
+	if (first_start) {
+		pimpl_->files_to_load_.push_back(
+			i18nLibFileSearch("examples", "splash.lyx").absFilename());
+	}
 
 	return EXIT_SUCCESS;
 }
 
 
-void LyX::addFileToLoad(FileName const & fname)
+void LyX::addFileToLoad(string const & fname)
 {
-	vector<FileName>::const_iterator cit = find(
+	vector<string>::const_iterator cit = find(
 		pimpl_->files_to_load_.begin(), pimpl_->files_to_load_.end(),
 		fname);
 
@@ -553,15 +551,20 @@ void LyX::addFileToLoad(FileName const & fname)
 
 void LyX::loadFiles()
 {
-	vector<FileName>::const_iterator it = pimpl_->files_to_load_.begin();
-	vector<FileName>::const_iterator end = pimpl_->files_to_load_.end();
+	vector<string>::const_iterator it = pimpl_->files_to_load_.begin();
+	vector<string>::const_iterator end = pimpl_->files_to_load_.end();
 
 	for (; it != end; ++it) {
-		if (it->empty())
+		// get absolute path of file and add ".lyx" to
+		// the filename if necessary
+		FileName fname = fileSearch(string(), os::internal_path(*it), "lyx",
+			may_not_exist);
+
+		if (fname.empty())
 			continue;
 
-		Buffer * buf = pimpl_->buffer_list_.newBuffer(it->absFilename(), false);
-		if (buf->loadLyXFile(*it)) {
+		Buffer * buf = pimpl_->buffer_list_.newBuffer(fname.absFilename(), false);
+		if (buf->loadLyXFile(fname)) {
 			ErrorList const & el = buf->errorList("Parse");
 			if (!el.empty())
 				for_each(el.begin(), el.end(),
@@ -578,10 +581,9 @@ void LyX::execBatchCommands()
 	// The advantage of doing this here is that the event loop
 	// is already started. So any need for interaction will be
 	// aknowledged.
-	restoreGuiSession();
 
 	// if reconfiguration is needed.
-	if (textclasslist.empty()) {
+	while (textclasslist.empty()) {
 	    switch (Alert::prompt(
 		    _("No textclass is found"),
 		    _("LyX cannot continue because no textclass is found. "
@@ -601,10 +603,36 @@ void LyX::execBatchCommands()
 			pimpl_->lyxfunc_.dispatch(FuncRequest(LFUN_RECONFIGURE,
 				" --without-latex-config"));
 			break;
-		}
+		default:
 			pimpl_->lyxfunc_.dispatch(FuncRequest(LFUN_LYX_QUIT));
 			return;
 		}
+	}
+	
+	// create the first main window
+	pimpl_->lyxfunc_.dispatch(FuncRequest(LFUN_WINDOW_NEW, geometryArg));
+
+	if (!pimpl_->files_to_load_.empty()) {
+		// if some files were specified at command-line we assume that the
+		// user wants to edit *these* files and not to restore the session.
+		for (size_t i = 0; i != pimpl_->files_to_load_.size(); ++i) {
+			pimpl_->lyxfunc_.dispatch(
+				FuncRequest(LFUN_FILE_OPEN, pimpl_->files_to_load_[i]));
+		}
+		// clear this list to save a few bytes of RAM
+		pimpl_->files_to_load_.clear();
+	}
+	else
+		pimpl_->application_->restoreGuiSession();
+
+	BufferList::iterator I = theBufferList().begin();
+	BufferList::iterator end = theBufferList().end();
+	for (; I != end; ++I) {
+		Buffer * buf = *I;
+		if (buf != buf->masterBuffer())
+			continue;
+		updateLabels(*buf);
+	}
 
 	// Execute batch commands if available
 	if (pimpl_->batch_command.empty())
@@ -616,47 +644,6 @@ void LyX::execBatchCommands()
 }
 
 
-void LyX::restoreGuiSession()
-{
-	// create the main window
-	pimpl_->lyxfunc_.dispatch(FuncRequest(LFUN_WINDOW_NEW, geometryArg));
-
-	// if there is no valid class list, do not load any file. 
-	if (textclasslist.empty())
-		return;
-
-	// if some files were specified at command-line we assume that the
-	// user wants to edit *these* files and not to restore the session.
-	if (!pimpl_->files_to_load_.empty()) {
-		for_each(pimpl_->files_to_load_.begin(),
-			pimpl_->files_to_load_.end(),
-			bind(&LyXFunc::loadAndViewFile, pimpl_->lyxfunc_, _1, true));
-		// clear this list to save a few bytes of RAM
-		pimpl_->files_to_load_.clear();
-		pimpl_->session_->lastOpened().clear();
-
-	} else if (lyxrc.load_session) {
-		vector<FileName> const & lastopened = pimpl_->session_->lastOpened().getfiles();
-		// do not add to the lastfile list since these files are restored from
-		// last session, and should be already there (regular files), or should
-		// not be added at all (help files).
-		for_each(lastopened.begin(), lastopened.end(),
-			bind(&LyXFunc::loadAndViewFile, pimpl_->lyxfunc_, _1, false));
-
-		// clear this list to save a few bytes of RAM
-		pimpl_->session_->lastOpened().clear();
-	}
-
-	BufferList::iterator I = pimpl_->buffer_list_.begin();
-	BufferList::iterator end = pimpl_->buffer_list_.end();
-	for (; I != end; ++I) {
-		Buffer * buf = *I;
-		if (buf != buf->masterBuffer())
-			continue;
-		updateLabels(*buf);
-	}
-}
-
 /*
 Signals and Windows
 ===================

src/LyX.h

@@ -110,7 +110,7 @@ public:
 	void execBatchCommands();
 
 	///
-	void addFileToLoad(support::FileName const &);
+	void addFileToLoad(std::string const &);
 
 private:
 	/// noncopyable
@@ -135,9 +135,6 @@ private:
 	*/
 	void loadFiles();
 
-	/// Create a View, load files and restore GUI Session.
-	void restoreGuiSession();
-
 	/// initial LyX set up
 	bool init();
 	/// set up the default dead key bindings if requested

src/LyXFunc.cpp

@@ -145,7 +145,7 @@ bool import(LyXView * lv, FileName const & filename,
 
 
 	if (loader_format == "lyx") {
-		Buffer * buf = theLyXFunc().loadAndViewFile(lyxfile);
+		Buffer * buf = lv->loadDocument(lyxfile);
 		if (!buf) {
 			// we are done
 			lv->message(_("file not imported!"));
@@ -1125,7 +1125,7 @@ void LyXFunc::dispatch(FuncRequest const & cmd)
 			}
 			lyx_view_->message(bformat(_("Opening help file %1$s..."),
 				makeDisplayPath(fname.absFilename())));
-			Buffer * buf = loadAndViewFile(fname, false);
+			Buffer * buf = lyx_view_->loadDocument(fname, false);
 			if (buf) {
 				updateLabels(*buf);
 				lyx_view_->setBuffer(buf);
@@ -1194,12 +1194,6 @@ void LyXFunc::dispatch(FuncRequest const & cmd)
 			break;
 		}
 
-		case LFUN_FILE_OPEN:
-			BOOST_ASSERT(lyx_view_);
-			open(argument);
-			updateFlags = Update::None;
-			break;
-
 		// --- lyxserver commands ----------------------------
 		case LFUN_SERVER_GET_NAME:
 			BOOST_ASSERT(lyx_view_ && lyx_view_->buffer());
@@ -1233,7 +1227,7 @@ void LyXFunc::dispatch(FuncRequest const & cmd)
 				if (theBufferList().exists(s.absFilename()))
 					buf = theBufferList().getBuffer(s.absFilename());
 				else {
-					buf = loadAndViewFile(s);
+					buf = lyx_view_->loadDocument(s);
 					loaded = true;
 				}
 			}
@@ -1387,7 +1381,7 @@ void LyXFunc::dispatch(FuncRequest const & cmd)
 			} else {
 				setMessage(bformat(_("Opening child document %1$s..."),
 					makeDisplayPath(filename.absFilename())));
-				child = loadAndViewFile(filename, true);
+				child = lyx_view_->loadDocument(filename, false);
 				parsed = true;
 			}
 			if (child) {
@@ -1864,105 +1858,6 @@ void LyXFunc::sendDispatchMessage(docstring const & msg, FuncRequest const & cmd
 }
 
 
-Buffer * LyXFunc::loadAndViewFile(FileName const & filename, bool tolastfiles)
-{
-	lyx_view_->setBusy(true);
-
-	Buffer * newBuffer = checkAndLoadLyXFile(filename);
-
-	if (!newBuffer) {
-		lyx_view_->message(_("Document not loaded."));
-		lyx_view_->setBusy(false);
-		return 0;
-	}
-
-	lyx_view_->setBuffer(newBuffer);
-
-	// scroll to the position when the file was last closed
-	if (lyxrc.use_lastfilepos) {
-		LastFilePosSection::FilePos filepos =
-			LyX::ref().session().lastFilePos().load(filename);
-		lyx_view_->view()->moveToPosition(filepos.pit, filepos.pos, 0, 0);
-	}
-
-	if (tolastfiles)
-		LyX::ref().session().lastFiles().add(filename);
-
-	lyx_view_->setBusy(false);
-	return newBuffer;
-}
-
-
-void LyXFunc::open(string const & fname)
-{
-	string initpath = lyxrc.document_path;
-
-	if (lyx_view_->buffer()) {
-		string const trypath = lyx_view_->buffer()->filePath();
-		// If directory is writeable, use this as default.
-		if (FileName(trypath).isDirWritable())
-			initpath = trypath;
-	}
-
-	string filename;
-
-	if (fname.empty()) {
-		FileDialog dlg(_("Select document to open"), LFUN_FILE_OPEN);
-		dlg.setButton1(_("Documents|#o#O"), from_utf8(lyxrc.document_path));
-		dlg.setButton2(_("Examples|#E#e"),
-				from_utf8(addPath(package().system_support().absFilename(), "examples")));
-
-		FileDialog::Result result =
-			dlg.open(from_utf8(initpath),
-				     FileFilterList(_("LyX Documents (*.lyx)")),
-				     docstring());
-
-		if (result.first == FileDialog::Later)
-			return;
-
-		filename = to_utf8(result.second);
-
-		// check selected filename
-		if (filename.empty()) {
-			lyx_view_->message(_("Canceled."));
-			return;
-		}
-	} else
-		filename = fname;
-
-	// get absolute path of file and add ".lyx" to the filename if
-	// necessary. 
-	FileName const fullname = 
-			fileSearch(string(), filename, "lyx", support::may_not_exist);
-	if (!fullname.empty())
-		filename = fullname.absFilename();
-
-	// if the file doesn't exist, let the user create one
-	if (!fullname.exists()) {
-		// the user specifically chose this name. Believe him.
-		Buffer * const b = newFile(filename, string(), true);
-		if (b)
-			lyx_view_->setBuffer(b);
-		return;
-	}
-
-	docstring const disp_fn = makeDisplayPath(filename);
-	lyx_view_->message(bformat(_("Opening document %1$s..."), disp_fn));
-
-	docstring str2;
-	Buffer * buf = loadAndViewFile(fullname);
-	if (buf) {
-		updateLabels(*buf);
-		lyx_view_->setBuffer(buf);
-		buf->errors("Parse");
-		str2 = bformat(_("Document %1$s opened."), disp_fn);
-	} else {
-		str2 = bformat(_("Could not open document %1$s"), disp_fn);
-	}
-	lyx_view_->message(str2);
-}
-
-
 void LyXFunc::doImport(string const & argument)
 {
 	string format;
@@ -2067,7 +1962,7 @@ void LyXFunc::reloadBuffer()
 	// The user has already confirmed that the changes, if any, should
 	// be discarded. So we just release the Buffer and don't call closeBuffer();
 	theBufferList().release(lyx_view_->buffer());
-	Buffer * buf = loadAndViewFile(filename);
+	Buffer * buf = lyx_view_->loadDocument(filename);
 	docstring const disp_fn = makeDisplayPath(filename.absFilename());
 	docstring str;
 	if (buf) {

src/LyXFunc.h

@@ -87,10 +87,6 @@ public:
 	///		not the current buffer
 	void gotoBookmark(unsigned int idx, bool openFile, bool switchToBuffer);
 
-	/// load a buffer into the current workarea.
-	Buffer * loadAndViewFile(support::FileName const &  name, ///< File to load.
-		bool tolastfiles = true);  ///< append to the "Open recent" menu?
-
 	/// cursor x position before dispatch started
 	int cursorBeforeDispatchX() const {
 		return cursorPosBeforeDispatchX_;
@@ -133,8 +129,6 @@ private:
 	void sendDispatchMessage(docstring const & msg,
 		FuncRequest const & ev);
 
-	///
-	void open(std::string const &);
 	///
 	void doImport(std::string const &);
 	///

src/frontends/Application.h

@@ -163,6 +163,9 @@ public:
 	///
 	virtual void resetGui() = 0;
 
+	/// Load files and restore GUI Session.
+	virtual void restoreGuiSession() = 0;
+
 	///
 	virtual void hideDialogs(std::string const & name, Inset * inset) const = 0;
 	///

src/frontends/LyXView.h

@@ -67,6 +67,12 @@ public:
 	virtual void setBuffer(Buffer * b) = 0; ///< \c Buffer to set.
 	///
 	virtual bool closeBuffer() = 0;
+
+	/// load a document into the current workarea.
+	virtual Buffer * loadDocument(
+		support::FileName const &  name, ///< File to load.
+		bool tolastfiles = true  ///< append to the "Open recent" menu?
+		) = 0;
 	///
 	virtual void newDocument(std::string const & filename,
 		bool fromTemplate) = 0;

src/frontends/qt4/GuiApplication.cpp

@@ -378,6 +378,24 @@ void GuiApplication::execBatchCommands()
 }
 
 
+void GuiApplication::restoreGuiSession()
+{
+	if (!lyxrc.load_session)
+		return;
+
+	Session & session = LyX::ref().session();
+	vector<FileName> const & lastopened = session.lastOpened().getfiles();
+	// do not add to the lastfile list since these files are restored from
+	// last session, and should be already there (regular files), or should
+	// not be added at all (help files).
+	for_each(lastopened.begin(), lastopened.end(),
+		bind(&GuiView::loadDocument, current_view_, _1, false));
+
+	// clear this list to save a few bytes of RAM
+	session.lastOpened().clear();
+}
+
+
 QString const GuiApplication::romanFontName()
 {
 	QFont font;
@@ -429,7 +447,7 @@ bool GuiApplication::event(QEvent * e)
 			// So we acknowledge the event and delay the file opening
 			// until LyX is ready.
 			// FIXME UNICODE: FileName accept an utf8 encoded string.
-			LyX::ref().addFileToLoad(FileName(fromqstr(foe->file())));
+			LyX::ref().addFileToLoad(fromqstr(foe->file()));
 		else
 			lyx::dispatch(FuncRequest(LFUN_FILE_OPEN,
 				qstring_to_ucs4(foe->file())));

src/frontends/qt4/GuiApplication.h

@@ -61,6 +61,7 @@ public:
 	virtual FuncStatus getStatus(FuncRequest const &);
 	virtual bool dispatch(FuncRequest const &);
 	virtual void resetGui();
+	void restoreGuiSession();
 	virtual Clipboard & clipboard();
 	virtual Selection & selection();
 	virtual FontLoader & fontLoader() { return font_loader_; }

src/frontends/qt4/GuiView.cpp

@@ -1055,6 +1055,105 @@ static FileName selectTemplateFile()
 }
 
 
+Buffer * GuiView::loadDocument(FileName const & filename, bool tolastfiles)
+{
+	setBusy(true);
+
+	Buffer * newBuffer = checkAndLoadLyXFile(filename);
+
+	if (!newBuffer) {
+		message(_("Document not loaded."));
+		setBusy(false);
+		return 0;
+	}
+
+	setBuffer(newBuffer);
+
+	// scroll to the position when the file was last closed
+	if (lyxrc.use_lastfilepos) {
+		LastFilePosSection::FilePos filepos =
+			LyX::ref().session().lastFilePos().load(filename);
+		view()->moveToPosition(filepos.pit, filepos.pos, 0, 0);
+	}
+
+	if (tolastfiles)
+		LyX::ref().session().lastFiles().add(filename);
+
+	setBusy(false);
+	return newBuffer;
+}
+
+
+void GuiView::openDocument(string const & fname)
+{
+	string initpath = lyxrc.document_path;
+
+	if (buffer()) {
+		string const trypath = buffer()->filePath();
+		// If directory is writeable, use this as default.
+		if (FileName(trypath).isDirWritable())
+			initpath = trypath;
+	}
+
+	string filename;
+
+	if (fname.empty()) {
+		FileDialog dlg(_("Select document to open"), LFUN_FILE_OPEN);
+		dlg.setButton1(_("Documents|#o#O"), from_utf8(lyxrc.document_path));
+		dlg.setButton2(_("Examples|#E#e"),
+				from_utf8(addPath(package().system_support().absFilename(), "examples")));
+
+		FileDialog::Result result =
+			dlg.open(from_utf8(initpath),
+				     FileFilterList(_("LyX Documents (*.lyx)")),
+				     docstring());
+
+		if (result.first == FileDialog::Later)
+			return;
+
+		filename = to_utf8(result.second);
+
+		// check selected filename
+		if (filename.empty()) {
+			message(_("Canceled."));
+			return;
+		}
+	} else
+		filename = fname;
+
+	// get absolute path of file and add ".lyx" to the filename if
+	// necessary. 
+	FileName const fullname = 
+			fileSearch(string(), filename, "lyx", support::may_not_exist);
+	if (!fullname.empty())
+		filename = fullname.absFilename();
+
+	// if the file doesn't exist, let the user create one
+	if (!fullname.exists()) {
+		// the user specifically chose this name. Believe him.
+		Buffer * const b = newFile(filename, string(), true);
+		if (b)
+			setBuffer(b);
+		return;
+	}
+
+	docstring const disp_fn = makeDisplayPath(filename);
+	message(bformat(_("Opening document %1$s..."), disp_fn));
+
+	docstring str2;
+	Buffer * buf = loadDocument(fullname);
+	if (buf) {
+		updateLabels(*buf);
+		setBuffer(buf);
+		buf->errors("Parse");
+		str2 = bformat(_("Document %1$s opened."), disp_fn);
+	} else {
+		str2 = bformat(_("Could not open document %1$s"), disp_fn);
+	}
+	message(str2);
+}
+
+
 void GuiView::newDocument(string const & filename, bool from_template)
 {
 	FileName initpath(lyxrc.document_path);
@@ -1352,6 +1451,10 @@ bool GuiView::dispatch(FuncRequest const & cmd)
 		bv->cursor().updateFlags(Update::None);
 
 	switch(cmd.action) {
+		case LFUN_FILE_OPEN:
+			openDocument(to_utf8(cmd.argument()));
+			break;
+
 		case LFUN_BUFFER_SWITCH:
 			setBuffer(theBufferList().getBuffer(to_utf8(cmd.argument())));
 			break;

src/frontends/qt4/GuiView.h

@@ -89,6 +89,11 @@ public:
 	void setBuffer(Buffer * b); ///< \c Buffer to set.
 	///
 	bool closeBuffer();
+	/// load a document into the current workarea.
+	Buffer * loadDocument(support::FileName const &  name, ///< File to load.
+		bool tolastfiles = true);  ///< append to the "Open recent" menu?
+	///
+	void openDocument(std::string const & filename);
 	///
 	void newDocument(std::string const & filename, bool fromTemplate);
 	/// write all buffers, asking the user, returns false if cancelled