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8b107f0490
When a buffer is in an embedded work area (adv. find&replace), it is not found by BufferList:::exists(), and therefore the undo group created in GuiApplication::dispatch and in the handling of LFUN_COMMAND_SEQUENCE will not be closed.. Crashes can ensue, as described in Ubuntu bug: https://bugs.launchpad.net/bugs/1737429 The solution is to introduce BufferList::isInternal and act on it. Fixes bug #10847.
158 lines
4.0 KiB
C++
158 lines
4.0 KiB
C++
// -*- C++ -*-
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/**
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* \file BufferList.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef BUFFER_LIST_H
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#define BUFFER_LIST_H
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#include "support/docstring.h"
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#include <vector>
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namespace lyx {
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class Author;
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class Buffer;
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class OutputParams;
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namespace support {
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class FileName;
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class FileNameList;
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} // namespace support
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/**
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* The class holds all all open buffers, and handles construction
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* and deletions of new ones.
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*/
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class BufferList {
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public:
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typedef std::vector<Buffer *>::iterator iterator;
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typedef std::vector<Buffer *>::const_iterator const_iterator;
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public:
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BufferList();
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~BufferList();
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iterator begin();
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const_iterator begin() const;
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iterator end();
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const_iterator end() const;
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/// create a new buffer and add it to the buffer list
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/// \return 0 if the Buffer creation is not possible for whatever reason.
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Buffer * newBuffer(std::string const & s);
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/// create an internal buffer and add it to the internal buffer list
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/// \return 0 if the Buffer creation is not possible for whatever reason.
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Buffer * newInternalBuffer(std::string const & s);
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/// Is child a child of some Buffer other than parent?
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/// NOTE: child must be a child of parent, and both must be non-null.
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/// Otherwise we assert.
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bool isOthersChild(Buffer * parent, Buffer * child);
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/// delete a buffer
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void release(Buffer * b);
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/// Close all open buffers.
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void closeAll();
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/// returns a vector with all the buffers filenames
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support::FileNameList fileNames() const;
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/// return true if no buffers loaded
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bool empty() const;
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/// return head of buffer list if any
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Buffer * first();
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/// return back of buffer list if any
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Buffer * last();
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/// returns true if the buffer exists already
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bool exists(support::FileName const &) const;
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/// returns true if the buffer is loaded
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bool isLoaded(Buffer const * b) const;
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/// returns true if the buffer is known as internal buffer
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bool isInternal(Buffer const * b) const;
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/// \return index of named buffer in buffer list
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int bufferNum(support::FileName const & name) const;
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/** returns a pointer to the buffer with the given name
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*
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* \param internal
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* If true, the buffer is searched also among internal buffers
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*/
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Buffer * getBuffer(support::FileName const & name, bool internal = false) const;
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/// \return a pointer to the buffer with the given number
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Buffer * getBuffer(unsigned int);
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/// \return a pointer to the buffer whose temppath matches the given path
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Buffer * getBufferFromTmp(std::string const & path);
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/** returns a pointer to the buffer that follows argument in
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* buffer list. The buffer following the last in list is the
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* first one.
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*/
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Buffer * next(Buffer const *) const;
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/** returns a pointer to the buffer that precedes argument in
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* buffer list. The buffer preceding the first in list is the
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* last one.
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*/
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Buffer * previous(Buffer const *) const;
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/// \name Functions that just operate on all buffers
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//@{
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/// reset current author for all buffers
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void recordCurrentAuthor(Author const & author);
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/// update previews for all buffers, e.g. for Prefs update
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void updatePreviews();
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/// Call changed() on all buffers, internal or not
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void changed(bool update_metrics) const;
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/// emergency save for all buffers
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void emergencyWriteAll();
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/// FIXME
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void updateIncludedTeXfiles(std::string const &, OutputParams const &);
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///
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void invalidateConverterCache() const;
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//@}
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private:
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/// create a new buffer
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/// \return 0 if the Buffer creation is not possible for whatever reason.
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Buffer * createNewBuffer(std::string const & s);
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/// noncopiable
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BufferList(BufferList const &);
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void operator=(BufferList const &);
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typedef std::vector<Buffer *> BufferStorage;
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/// storage of all buffers
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BufferStorage bstore;
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/// storage of all internal buffers used for cut&paste, etc.
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BufferStorage binternal;
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};
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/// Implementation is in LyX.cpp
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extern BufferList & theBufferList();
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} // namespace lyx
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#endif // BUFFERLIST_H
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