Embedding: add 'addFile' to embed arbitrary file, fix a few bugs along the way

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19967 a592a061-630c-0410-9148-cb99ea01b6c8

src/EmbeddedFiles.cpp

@@ -60,6 +60,7 @@ using support::makeRelPath;
 using support::changeExtension;
 using support::bformat;
 using support::zipFiles;
+using support::prefixIs;
 
 
 EmbeddedFile::EmbeddedFile(string const & file, string const & inzip_name,
@@ -75,6 +76,13 @@ string EmbeddedFile::embeddedFile(Buffer const * buf) const
 }
 
 
+int const EmbeddedFile::parID() const
+{
+	// some embedded file do not have a valid par iterator
+	return par_it_ == ParConstIterator() ? 0 : par_it_->id();
+}
+
+
 void EmbeddedFile::setParIter(ParConstIterator const & pit)
 {
 	par_it_ = pit;
@@ -119,23 +127,8 @@ void EmbeddedFiles::registerFile(string const & filename,
 		it->validate();
 		return;
 	}
-	// register a new one, using relative file path as inzip_name
-	string inzip_name = to_utf8(makeRelPath(from_utf8(abs_filename),
-		from_utf8(buffer_->fileName())));
-	// if inzip_name is an absolute path, use filename only to avoid
-	// leaking of filesystem information in inzip_name
-	if (absolutePath(inzip_name))
-		inzip_name = onlyFilename(inzip_name);
-	// if this name has been used...
-	// use _1_name, _2_name etc
-	if (!validInzipName(inzip_name)) {
-		size_t i = 1;
-		string tmp = inzip_name;
-		do {
-			inzip_name = convert<string>(i) + "_" + tmp;
-		} while (!validInzipName(inzip_name));
-	}
-	file_list_.push_back(EmbeddedFile(abs_filename, inzip_name, status, pit));
+	file_list_.push_back(EmbeddedFile(abs_filename, 
+		getInzipName(abs_filename), status, pit));
 }
 
 
@@ -148,7 +141,10 @@ void EmbeddedFiles::update()
 	EmbeddedFileList::iterator it = file_list_.begin();
 	EmbeddedFileList::iterator it_end = file_list_.end();
 	for (; it != it_end; ++it)
-		it->invalidate();
+		// if the status of a file is EMBEDDED, it will be there
+		// even if it is not referred by a document.
+		if (it->status() != EmbeddedFile::EMBEDDED)
+			it->invalidate();
 
 	ParIterator pit = buffer_->par_iterator_begin();
 	ParIterator pit_end = buffer_->par_iterator_end();
@@ -187,14 +183,25 @@ bool EmbeddedFiles::write(DocFileName const & filename)
 	EmbeddedFileList::iterator it_end = file_list_.end();
 	for (; it != it_end; ++it) {
 		if (it->valid() && it->embedded()) {
-			// use external file if possible
-			if (it->status() != EmbeddedFile::EMBEDDED && fs::exists(it->absFilename()))
-				filenames.push_back(make_pair(it->absFilename(), it->inzipName()));
-			// use embedded file (AUTO or EMBEDDED mode)
-			else if(fs::exists(it->embeddedFile(buffer_)))
-				filenames.push_back(make_pair(it->embeddedFile(buffer_), it->inzipName()));
-			else
-				lyxerr << "File " << it->absFilename() << " does not exist. Skip embedding it. " << endl;
+			string ext_file = it->absFilename();
+			string emb_file = it->embeddedFile(buffer_);
+			if (it->status() == EmbeddedFile::AUTO) {
+				// use external file first
+				if (fs::exists(ext_file))
+					filenames.push_back(make_pair(ext_file, it->inzipName()));
+				else if (fs::exists(emb_file))
+					filenames.push_back(make_pair(emb_file, it->inzipName()));
+				else
+					lyxerr << "File " << ext_file << " does not exist. Skip embedding it. " << endl;
+			} else if (it->status() == EmbeddedFile::EMBEDDED) {
+				// use embedded file first
+				if (fs::exists(emb_file))
+					filenames.push_back(make_pair(emb_file, it->inzipName()));
+				else if (fs::exists(ext_file))
+					filenames.push_back(make_pair(ext_file, it->inzipName()));
+				else
+					lyxerr << "File " << ext_file << " does not exist. Skip embedding it. " << endl;
+			}
 		}
 	}
 	// add filename (.lyx) and manifest to filenames
@@ -221,14 +228,35 @@ bool EmbeddedFiles::write(DocFileName const & filename)
 }
 
 
-bool EmbeddedFiles::validInzipName(string const & name)
+string const EmbeddedFiles::getInzipName(string const & abs_filename)
 {
-	EmbeddedFileList::iterator it = file_list_.begin();
+	// register a new one, using relative file path as inzip_name
+	string inzip_name = to_utf8(makeRelPath(from_utf8(abs_filename),
+		from_utf8(buffer_->fileName())));
+	// if inzip_name is an absolute path, use filename only to avoid
+	// leaking of filesystem information in inzip_name
+	if (absolutePath(inzip_name) || prefixIs(inzip_name, ".."))
+		inzip_name = onlyFilename(inzip_name);
+	// if this name has been used...
+	// use _1_name, _2_name etc
+	string tmp = inzip_name;
+	EmbeddedFileList::iterator it;
 	EmbeddedFileList::iterator it_end = file_list_.end();
-	for (; it != it_end; ++it)
-			if (it->inzipName() == name)
-				return false;
-	return true;
+	bool unique_name = false;
+	while (!unique_name) {
+		unique_name = true;
+		size_t i = 0;
+		if (i > 0)
+			inzip_name = convert<string>(i) + "_" + tmp;
+		it = file_list_.begin();
+		for (; it != it_end; ++it)
+			if (it->inzipName() == inzip_name) {
+				unique_name = false;
+				++i;
+				break;
+			}
+	}
+	return inzip_name;
 }
 
 

src/EmbeddedFiles.h

@@ -137,7 +137,8 @@ public:
 		// to generate output, and be embedded to the saved lyx file.
 		// Otherwise, embedded version will be used.
 		AUTO,
-		// Always use embedded version.
+		// Always use embedded version. The file will be embedded even
+		// if the file is no longer referred by the document.
 		EMBEDDED,
 		// Do not embed this file, always use external version.
 		EXTERNAL
@@ -153,7 +154,7 @@ public:
 
 	/// paragraph id
 	void setParIter(ParConstIterator const & pit);
-	int const parID() const { return par_it_->id(); }
+	int const parID() const;
 
 	/// embedding status of this file
 	bool embedded() const { return status_ != EXTERNAL; }
@@ -225,8 +226,8 @@ public:
 
 	friend std::ostream & operator<< (std::ostream & os, EmbeddedFiles const &);
 private:
-	/// if a inzip name already exists
-	bool validInzipName(std::string const & name);
+	/// get a unique inzip name
+	std::string const getInzipName(std::string const & name);
 	/// list of embedded files
 	EmbeddedFileList file_list_;
 	///

src/frontends/controllers/ControlEmbeddedFiles.cpp

@@ -18,13 +18,20 @@
 #include "gettext.h"
 #include "debug.h"
 #include "Format.h"
+#include "LyXRC.h"
 
+#include "frontend_helpers.h"
 #include "frontends/LyXView.h"
+
+#include "support/FileFilterList.h"
 #include "support/convert.h"
 
 using std::string;
 
 namespace lyx {
+
+using support::FileFilterList;
+
 namespace frontend {
 
 ControlEmbeddedFiles::ControlEmbeddedFiles(Dialog & parent)
@@ -55,8 +62,11 @@ void ControlEmbeddedFiles::dispatchParams()
 
 void ControlEmbeddedFiles::goTo(EmbeddedFile const & item)
 {
-	string const tmp = convert<string>(item.parID());
-	kernel().lyxview().dispatch(FuncRequest(LFUN_PARAGRAPH_GOTO, tmp));
+	int id = item.parID();
+	if (id != 0) {
+		string const tmp = convert<string>(item.parID());
+		kernel().lyxview().dispatch(FuncRequest(LFUN_PARAGRAPH_GOTO, tmp));
+	}
 }
 
 
@@ -65,5 +75,17 @@ void ControlEmbeddedFiles::view(EmbeddedFile const & item)
 	formats.view(kernel().buffer(), item, formats.getFormatFromFile(item));
 }
 
+
+docstring const ControlEmbeddedFiles::browseFile()
+{
+	std::pair<docstring, docstring> dir1(_("Documents|#o#O"),
+				  lyx::from_utf8(lyxrc.document_path));
+	FileFilterList const filter(_("All file (*.*)"));
+	return browseRelFile(docstring(), lyx::from_utf8(kernel().bufferFilepath()),
+			     _("Select a file to embed"),
+			     filter, false, dir1);
+}
+
+
 } // namespace frontend
 } // namespace lyx

src/frontends/controllers/ControlEmbeddedFiles.h

@@ -48,6 +48,8 @@ public:
 	void goTo(EmbeddedFile const & item);
 	///
 	void view(EmbeddedFile const & item);
+	///
+	docstring const browseFile();
 
 protected:
 	// directly handle buffer embedded files

src/frontends/qt4/GuiEmbeddedFiles.cpp

@@ -127,6 +127,7 @@ void GuiEmbeddedFilesDialog::on_actionPB_clicked()
 	// ACTION
 	QString action = actionCB->currentText();
 	if (action == "Add file") {
+		addFile();
 	} else if (action == "Extract file") {
 	} else if (action == "Extract all") {
 	} else if (action == "Embed all") {
@@ -138,6 +139,16 @@ void GuiEmbeddedFilesDialog::on_actionPB_clicked()
 }
 
 
+void GuiEmbeddedFilesDialog::addFile()
+{
+	docstring const file = form_->browseFile();
+	if (!file.empty()) {
+		EmbeddedFiles & files = form_->embeddedFiles();
+		files.registerFile(to_utf8(file), EmbeddedFile::EMBEDDED);
+	}		
+}
+
+
 void GuiEmbeddedFilesDialog::on_actionCB_stateChanged(int idx)
 {
 	// valid action, enable action button

src/frontends/qt4/GuiEmbeddedFiles.h

@@ -43,6 +43,8 @@ public Q_SLOTS:
 	void on_autoRB_clicked();
 	void on_embeddedRB_clicked();
 	void on_externalRB_clicked();
+	///
+	void addFile();
 private:
 	void set_embedding_status(EmbeddedFile::STATUS);
 	///