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c2d182f59a
We know that buf is not null at this point. Spotted by coverity.
394 lines
8.4 KiB
C++
394 lines
8.4 KiB
C++
/**
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* \file BufferList.cpp
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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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#include <config.h>
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#include "BufferList.h"
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#include "Author.h"
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#include "Buffer.h"
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#include "BufferParams.h"
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#include "Session.h"
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#include "LyX.h"
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#include "output_latex.h"
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#include "ParagraphList.h"
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#include "frontends/alert.h"
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#include "support/ExceptionMessage.h"
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#include "support/debug.h"
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#include "support/FileName.h"
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#include "support/FileNameList.h"
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#include "support/filetools.h"
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#include "support/gettext.h"
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#include "support/lstrings.h"
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#include "support/Package.h"
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#include "support/lassert.h"
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#include <algorithm>
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#include <iterator>
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#include <memory>
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using namespace std;
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using namespace lyx::support;
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namespace lyx {
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namespace Alert = lyx::frontend::Alert;
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BufferList::BufferList()
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{}
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BufferList::~BufferList()
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{
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BufferStorage::iterator it = binternal.begin();
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BufferStorage::iterator end = binternal.end();
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for (; it != end; ++it)
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delete (*it);
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}
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bool BufferList::empty() const
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{
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return bstore.empty();
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}
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BufferList::iterator BufferList::begin()
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{
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return bstore.begin();
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}
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BufferList::const_iterator BufferList::begin() const
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{
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return bstore.begin();
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}
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BufferList::iterator BufferList::end()
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{
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return bstore.end();
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}
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BufferList::const_iterator BufferList::end() const
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{
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return bstore.end();
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}
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void BufferList::release(Buffer * buf)
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{
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// We may leak here, but we probably do not need to
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// shut down.
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LASSERT(buf, return);
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BufferStorage::iterator const it =
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find(bstore.begin(), bstore.end(), buf);
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if (it != bstore.end()) {
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Buffer const * parent = buf->parent();
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Buffer * tmp = (*it);
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bstore.erase(it);
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LASSERT(tmp, return);
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delete tmp;
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if (parent)
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// If this was a child, update the parent's buffer
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// to avoid crashes due to dangling pointers (bug 9979)
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parent->updateBuffer();
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}
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}
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Buffer * BufferList::newInternalBuffer(string const & s)
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{
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Buffer * const buf = createNewBuffer(s);
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if (buf) {
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buf->setInternal(true);
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binternal.push_back(buf);
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}
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return buf;
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}
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Buffer * BufferList::newBuffer(string const & s)
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{
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Buffer * const buf = createNewBuffer(s);
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if (buf) {
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LYXERR(Debug::INFO, "Assigning to buffer " << bstore.size());
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bstore.push_back(buf);
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}
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return buf;
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}
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Buffer * BufferList::createNewBuffer(string const & s)
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{
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unique_ptr<Buffer> tmpbuf;
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try {
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tmpbuf = make_unique<Buffer>(s);
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} catch (ExceptionMessage const & message) {
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if (message.type_ == ErrorException) {
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Alert::error(message.title_, message.details_);
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exit(1);
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} else if (message.type_ == WarningException) {
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Alert::warning(message.title_, message.details_);
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return 0;
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}
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}
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tmpbuf->params().useClassDefaults();
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return tmpbuf.release();
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}
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void BufferList::closeAll()
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{
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while (!bstore.empty())
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release(bstore.front());
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}
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FileNameList BufferList::fileNames() const
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{
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FileNameList nvec;
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BufferStorage::const_iterator it = bstore.begin();
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BufferStorage::const_iterator end = bstore.end();
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for (; it != end; ++it) {
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Buffer * buf = *it;
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nvec.push_back(buf->fileName());
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}
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return nvec;
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}
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Buffer * BufferList::first()
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{
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if (bstore.empty())
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return 0;
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return bstore.front();
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}
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Buffer * BufferList::last()
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{
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if (bstore.empty())
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return 0;
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return bstore.back();
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}
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Buffer * BufferList::getBuffer(unsigned int choice)
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{
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if (choice >= bstore.size())
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return 0;
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return bstore[choice];
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}
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Buffer * BufferList::next(Buffer const * buf) const
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{
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// Something is wrong, but we can probably survive it.
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LASSERT(buf, return 0);
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if (bstore.empty())
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return 0;
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BufferStorage::const_iterator it =
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find(bstore.begin(), bstore.end(), buf);
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LASSERT(it != bstore.end(), return 0);
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++it;
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Buffer * nextbuf = (it == bstore.end()) ? bstore.front() : *it;
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return nextbuf;
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}
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Buffer * BufferList::previous(Buffer const * buf) const
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{
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// Something is wrong, but we can probably survive it.
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LASSERT(buf, return 0);
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if (bstore.empty())
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return 0;
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BufferStorage::const_iterator it =
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find(bstore.begin(), bstore.end(), buf);
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LASSERT(it != bstore.end(), return 0);
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Buffer * previousbuf = (it == bstore.begin()) ? bstore.back() : *(it - 1);
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return previousbuf;
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}
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void BufferList::updateIncludedTeXfiles(string const & masterTmpDir,
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OutputParams const & runparams_in)
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{
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OutputParams runparams = runparams_in;
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runparams.is_child = true;
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BufferStorage::iterator it = bstore.begin();
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BufferStorage::iterator end = bstore.end();
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for (; it != end; ++it) {
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if (!(*it)->isDepClean(masterTmpDir)) {
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string writefile = addName(masterTmpDir, (*it)->latexName());
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(*it)->makeLaTeXFile(FileName(writefile), masterTmpDir,
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runparams, Buffer::OnlyBody);
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(*it)->markDepClean(masterTmpDir);
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}
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}
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runparams.is_child = false;
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}
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void BufferList::emergencyWriteAll()
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{
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BufferStorage::const_iterator it = bstore.begin();
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BufferStorage::const_iterator const en = bstore.end();
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for (; it != en; ++it)
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(*it)->emergencyWrite();
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}
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void BufferList::invalidateConverterCache() const
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{
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BufferStorage::const_iterator it = bstore.begin();
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BufferStorage::const_iterator const en = bstore.end();
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for (; it != en; ++it)
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(*it)->params().invalidateConverterCache();
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}
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bool BufferList::exists(FileName const & fname) const
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{
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return getBuffer(fname) != 0;
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}
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bool BufferList::isLoaded(Buffer const * b) const
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{
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if (!b)
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return false;
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BufferStorage::const_iterator cit =
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find(bstore.begin(), bstore.end(), b);
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return cit != bstore.end();
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}
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bool BufferList::isOthersChild(Buffer * parent, Buffer * child)
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{
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LASSERT(parent, return false);
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LASSERT(child, return false);
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LASSERT(parent->isChild(child), return false);
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// Does child document have a different parent?
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Buffer const * parent_ = child->parent();
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if (parent_ && parent_ != parent)
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return true;
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for(Buffer * buf : bstore)
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if (buf != parent && buf->isChild(child))
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return true;
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return false;
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}
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Buffer * BufferList::getBuffer(support::FileName const & fname, bool internal) const
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{
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// 1) cheap test, using string comparison of file names
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for (Buffer * b : bstore)
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if (b->fileName() == fname)
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return b;
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// 2) possibly expensive test, using equivalence test of file names
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for (Buffer * b : bstore)
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if (equivalent(b->fileName(), fname))
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return b;
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if (internal) {
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// 1) cheap test, using string comparison of file names
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for (Buffer * b : binternal)
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if (b->fileName() == fname)
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return b;
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// 2) possibly expensive test, using equivalence test of file names
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for (Buffer * b : binternal)
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if (equivalent(b->fileName(), fname))
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return b;
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}
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return 0;
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}
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Buffer * BufferList::getBufferFromTmp(string const & s)
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{
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BufferStorage::iterator it = bstore.begin();
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BufferStorage::iterator end = bstore.end();
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for (; it < end; ++it) {
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if (prefixIs(s, (*it)->temppath())) {
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// check whether the filename matches the master
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string const master_name = (*it)->latexName();
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if (suffixIs(s, master_name))
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return *it;
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// if not, try with the children
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ListOfBuffers clist = (*it)->getDescendents();
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ListOfBuffers::const_iterator cit = clist.begin();
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ListOfBuffers::const_iterator cend = clist.end();
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for (; cit != cend; ++cit) {
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string const mangled_child_name = DocFileName(
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changeExtension((*cit)->absFileName(),
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".tex")).mangledFileName();
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if (suffixIs(s, mangled_child_name))
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return *cit;
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}
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}
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}
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return 0;
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}
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void BufferList::recordCurrentAuthor(Author const & author)
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{
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BufferStorage::iterator it = bstore.begin();
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BufferStorage::iterator end = bstore.end();
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for (; it != end; ++it)
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(*it)->params().authors().recordCurrentAuthor(author);
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}
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void BufferList::updatePreviews()
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{
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BufferStorage::iterator it = bstore.begin();
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BufferStorage::iterator end = bstore.end();
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for (; it != end; ++it)
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(*it)->updatePreviews();
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}
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int BufferList::bufferNum(FileName const & fname) const
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{
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FileNameList const buffers(fileNames());
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FileNameList::const_iterator cit =
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find(buffers.begin(), buffers.end(), fname);
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if (cit == buffers.end())
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return 0;
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return int(cit - buffers.begin());
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}
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void BufferList::changed(bool update_metrics) const
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{
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BufferStorage::const_iterator it = bstore.begin();
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BufferStorage::const_iterator end = bstore.end();
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for (; it != end; ++it)
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(*it)->changed(update_metrics);
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it = binternal.begin();
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end = binternal.end();
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for (; it != end; ++it)
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(*it)->changed(update_metrics);
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}
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} // namespace lyx
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