]> git.lyx.org Git - lyx.git/blobdiff - src/BufferList.cpp
Fix #10778 (issue with CJK and language nesting)
[lyx.git] / src / BufferList.cpp
index 867d081c3fdcfacd9cf299b74b37075fa04ba057..bcdec59d87cf9e34cf800c0afbcfe61836a550ea 100644 (file)
@@ -3,7 +3,7 @@
  * This file is part of LyX, the document processor.
  * Licence details can be found in the file COPYING.
  *
- * \author Lars Gullik Bjønnes
+ * \author Lars Gullik Bjønnes
  *
  * Full author contact details are available in file CREDITS.
  */
 #include "support/Package.h"
 
 #include "support/lassert.h"
-#include <boost/bind.hpp>
+#include "support/bind.h"
 
 #include <algorithm>
 #include <functional>
-
-using boost::bind;
+#include <iterator>
+#include <memory>
 
 using namespace std;
 using namespace lyx::support;
@@ -51,6 +51,15 @@ BufferList::BufferList()
 {}
 
 
+BufferList::~BufferList()
+{
+       BufferStorage::iterator it = binternal.begin();
+       BufferStorage::iterator end = binternal.end();
+       for (; it != end; ++it)
+               delete (*it);
+}
+
+
 bool BufferList::empty() const
 {
        return bstore.empty();
@@ -83,23 +92,52 @@ BufferList::const_iterator BufferList::end() const
 
 void BufferList::release(Buffer * buf)
 {
-       LASSERT(buf, /**/);
+       // We may leak here, but we probably do not need to
+       // shut down.
+       LASSERT(buf, return);
        BufferStorage::iterator const it =
                find(bstore.begin(), bstore.end(), buf);
        if (it != bstore.end()) {
+               Buffer const * parent = buf->parent();
                Buffer * tmp = (*it);
-               LASSERT(tmp, /**/);
                bstore.erase(it);
+               LASSERT(tmp, return);
                delete tmp;
+               if (parent)
+                       // If this was a child, update the parent's buffer
+                       // to avoid crashes due to dangling pointers (bug 9979)
+                       parent->updateBuffer();
        }
 }
 
 
-Buffer * BufferList::newBuffer(string const & s, bool const ronly)
+Buffer * BufferList::newInternalBuffer(string const & s)
+{
+       Buffer * const buf = createNewBuffer(s);
+       if (buf) {
+               buf->setInternal(true);
+               binternal.push_back(buf);
+       }
+       return buf;
+}
+
+
+Buffer * BufferList::newBuffer(string const & s)
+{
+       Buffer * const buf = createNewBuffer(s);
+       if (buf) {
+               LYXERR(Debug::INFO, "Assigning to buffer " << bstore.size());
+               bstore.push_back(buf);
+       }
+       return buf;
+}
+
+
+Buffer * BufferList::createNewBuffer(string const & s)
 {
        auto_ptr<Buffer> tmpbuf;
        try {
-               tmpbuf.reset(new Buffer(s, ronly));
+               tmpbuf.reset(new Buffer(s));
        } catch (ExceptionMessage const & message) {
                if (message.type_ == ErrorException) {
                        Alert::error(message.title_, message.details_);
@@ -110,8 +148,6 @@ Buffer * BufferList::newBuffer(string const & s, bool const ronly)
                }
        }
        tmpbuf->params().useClassDefaults();
-       LYXERR(Debug::INFO, "Assigning to buffer " << bstore.size());
-       bstore.push_back(tmpbuf.get());
        return tmpbuf.release();
 }
 
@@ -123,13 +159,15 @@ void BufferList::closeAll()
 }
 
 
-FileNameList const & BufferList::fileNames() const
+FileNameList BufferList::fileNames() const
 {
-       static FileNameList nvec;
-       nvec.clear();
-       transform(bstore.begin(), bstore.end(),
-                 back_inserter(nvec),
-                 boost::bind(&Buffer::fileName, _1));
+       FileNameList nvec;
+       BufferStorage::const_iterator it = bstore.begin();
+       BufferStorage::const_iterator end = bstore.end();
+       for (; it != end; ++it) {
+               Buffer * buf = *it;
+               nvec.push_back(buf->fileName());
+       }
        return nvec;
 }
 
@@ -160,120 +198,70 @@ Buffer * BufferList::getBuffer(unsigned int choice)
 
 Buffer * BufferList::next(Buffer const * buf) const
 {
-       LASSERT(buf, /**/);
+       // Something is wrong, but we can probably survive it.
+       LASSERT(buf, return 0);
 
        if (bstore.empty())
                return 0;
-       BufferStorage::const_iterator it = find(bstore.begin(),
-                                               bstore.end(), buf);
-       LASSERT(it != bstore.end(), /**/);
+       BufferStorage::const_iterator it = 
+                       find(bstore.begin(), bstore.end(), buf);
+       LASSERT(it != bstore.end(), return 0);
        ++it;
        Buffer * nextbuf = (it == bstore.end()) ? bstore.front() : *it;
-       if (nextbuf->fileName().extension() == "internal")
-               return next(nextbuf);
        return nextbuf;
 }
 
 
 Buffer * BufferList::previous(Buffer const * buf) const
 {
-       LASSERT(buf, /**/);
+       // Something is wrong, but we can probably survive it.
+       LASSERT(buf, return 0);
 
        if (bstore.empty())
                return 0;
-       BufferStorage::const_iterator it = find(bstore.begin(),
-                                               bstore.end(), buf);
-       LASSERT(it != bstore.end(), /**/);
+       BufferStorage::const_iterator it = 
+                       find(bstore.begin(), bstore.end(), buf);
+       LASSERT(it != bstore.end(), return 0);
 
        Buffer * previousbuf = (it == bstore.begin()) ? bstore.back() : *(it - 1);
-       if (previousbuf->fileName().extension() == "internal")
-               return previous(previousbuf);
        return previousbuf;
 }
 
 
 void BufferList::updateIncludedTeXfiles(string const & masterTmpDir,
-                                       OutputParams const & runparams)
+                                       OutputParams const & runparams_in)
 {
+       OutputParams runparams = runparams_in;
+       runparams.is_child = true;
        BufferStorage::iterator it = bstore.begin();
        BufferStorage::iterator end = bstore.end();
        for (; it != end; ++it) {
                if (!(*it)->isDepClean(masterTmpDir)) {
                        string writefile = addName(masterTmpDir, (*it)->latexName());
                        (*it)->makeLaTeXFile(FileName(writefile), masterTmpDir,
-                                            runparams, false);
+                                            runparams, Buffer::OnlyBody);
                        (*it)->markDepClean(masterTmpDir);
                }
        }
+       runparams.is_child = false;
 }
 
 
 void BufferList::emergencyWriteAll()
 {
-       for_each(bstore.begin(), bstore.end(),
-                bind(&BufferList::emergencyWrite, this, _1));
+       BufferStorage::const_iterator it = bstore.begin();
+       BufferStorage::const_iterator const en = bstore.end();
+       for (; it != en; ++it)
+                (*it)->emergencyWrite();
 }
 
 
-docstring BufferList::emergencyWrite(Buffer * buf)
+void BufferList::invalidateConverterCache() const
 {
-       // Use ::assert to avoid a loop, BOOST_ASSERT ends up calling ::assert
-       // compare with 0 to avoid pointer/interger comparison
-       // ::assert(buf != 0);
-       if (!buf)
-               return _("No file open!");
-
-       // No need to save if the buffer has not changed.
-       if (buf->isClean())
-               return docstring();
-
-       string const doc = buf->isUnnamed()
-               ? onlyFilename(buf->absFileName()) : buf->absFileName();
-
-       docstring user_message = bformat(
-               _("LyX: Attempting to save document %1$s\n"), from_utf8(doc));
-
-       // We try to save three places:
-       // 1) Same place as document. Unless it is an unnamed doc.
-       if (!buf->isUnnamed()) {
-               string s = buf->absFileName();
-               s += ".emergency";
-               lyxerr << "  " << s << endl;
-               if (buf->writeFile(FileName(s))) {
-                       buf->markClean();
-                       user_message += _("  Save seems successful. Phew.\n");
-                       return user_message;
-               } else {
-                       user_message += _("  Save failed! Trying...\n");
-               }
-       }
-
-       // 2) In HOME directory.
-       string s = addName(package().home_dir().absFilename(), buf->absFileName());
-       s += ".emergency";
-       lyxerr << ' ' << s << endl;
-       if (buf->writeFile(FileName(s))) {
-               buf->markClean();
-               user_message += _("  Save seems successful. Phew.\n");
-               return user_message;
-       }
-
-       user_message += _("  Save failed! Trying...\n");
-
-       // 3) In "/tmp" directory.
-       // MakeAbsPath to prepend the current
-       // drive letter on OS/2
-       s = addName(package().temp_dir().absFilename(), buf->absFileName());
-       s += ".emergency";
-       lyxerr << ' ' << s << endl;
-       if (buf->writeFile(FileName(s))) {
-               buf->markClean();
-               user_message += _("  Save seems successful. Phew.\n");
-               return user_message;
-       }
-
-       user_message += _("  Save failed! Bummer. Document is lost.");
-       return user_message;
+       BufferStorage::const_iterator it = bstore.begin();
+       BufferStorage::const_iterator const en = bstore.end();
+       for (; it != en; ++it)
+               (*it)->params().invalidateConverterCache();
 }
 
 
@@ -283,20 +271,76 @@ bool BufferList::exists(FileName const & fname) const
 }
 
 
-bool BufferList::isLoaded(Buffer const * b) const
+ bool BufferList::isLoaded(Buffer const * b) const
 {
-       LASSERT(b, /**/);
+       if (!b)
+               return false;
        BufferStorage::const_iterator cit =
                find(bstore.begin(), bstore.end(), b);
        return cit != bstore.end();
 }
 
 
-Buffer * BufferList::getBuffer(support::FileName const & fname) const
+bool BufferList::isOthersChild(Buffer * parent, Buffer * child)
+{
+       LASSERT(parent, return false);
+       LASSERT(child, return false);
+       LASSERT(parent->isChild(child), return false);
+       
+       // Does child document have a different parent?
+       Buffer const * parent_ = child->parent();
+       if (parent_ && parent_ != parent)
+               return true;
+       
+       BufferStorage::iterator it = bstore.begin();
+       BufferStorage::iterator end = bstore.end();
+       for (; it != end; ++it) {
+               Buffer * buf = *it;
+               if (buf != parent && buf->isChild(child))
+                       return true;
+       }
+       return false;
+}
+
+
+namespace {
+
+struct equivalent_to : public binary_function<FileName, FileName, bool>
+{
+       bool operator()(FileName const & x, FileName const & y) const
+       { return equivalent(x, y); }
+};
+
+}
+
+
+Buffer * BufferList::getBuffer(support::FileName const & fname, bool internal) const
 {
+       // 1) cheap test, using string comparison of file names
        BufferStorage::const_iterator it = find_if(bstore.begin(), bstore.end(),
-               bind(equal_to<FileName>(), bind(&Buffer::fileName, _1), fname));
-       return it != bstore.end() ? (*it) : 0;
+               lyx::bind(equal_to<FileName>(), lyx::bind(&Buffer::fileName, _1), fname));
+       if (it != bstore.end())
+               return *it;
+       // 2) possibly expensive test, using equivalence test of file names
+       it = find_if(bstore.begin(), bstore.end(),
+               lyx::bind(equivalent_to(), lyx::bind(&Buffer::fileName, _1), fname));
+       if (it != bstore.end())
+               return *it;
+
+       if (internal) {
+               // 1) cheap test, using string comparison of file names
+               BufferStorage::const_iterator it = find_if(binternal.begin(), binternal.end(),
+                       lyx::bind(equal_to<FileName>(), lyx::bind(&Buffer::fileName, _1), fname));
+               if (it != binternal.end())
+                       return *it;
+               // 2) possibly expensive test, using equivalence test of file names
+               it = find_if(binternal.begin(), binternal.end(),
+                            lyx::bind(equivalent_to(), lyx::bind(&Buffer::fileName, _1), fname));
+               if (it != binternal.end())
+                       return *it;
+       }
+
+       return 0;
 }
 
 
@@ -304,25 +348,50 @@ Buffer * BufferList::getBufferFromTmp(string const & s)
 {
        BufferStorage::iterator it = bstore.begin();
        BufferStorage::iterator end = bstore.end();
-       for (; it < end; ++it)
-               if (prefixIs(s, (*it)->temppath()))
-                       return *it;
+       for (; it < end; ++it) {
+               if (prefixIs(s, (*it)->temppath())) {
+                       // check whether the filename matches the master
+                       string const master_name = (*it)->latexName();
+                       if (suffixIs(s, master_name))
+                               return *it;
+                       // if not, try with the children
+                       ListOfBuffers clist = (*it)->getDescendents();
+                       ListOfBuffers::const_iterator cit = clist.begin();
+                       ListOfBuffers::const_iterator cend = clist.end();
+                       for (; cit != cend; ++cit) {
+                               string const mangled_child_name = DocFileName(
+                                       changeExtension((*cit)->absFileName(),
+                                               ".tex")).mangledFileName();
+                               if (suffixIs(s, mangled_child_name))
+                                       return *cit;
+                       }
+               }
+       }
        return 0;
 }
 
 
-void BufferList::setCurrentAuthor(docstring const & name, docstring const & email)
+void BufferList::recordCurrentAuthor(Author const & author)
 {
        BufferStorage::iterator it = bstore.begin();
        BufferStorage::iterator end = bstore.end();
        for (; it != end; ++it)
-               (*it)->params().authors().record(0, Author(name, email));
+               (*it)->params().authors().recordCurrentAuthor(author);
+}
+
+
+void BufferList::updatePreviews()
+{
+       BufferStorage::iterator it = bstore.begin();
+       BufferStorage::iterator end = bstore.end();
+       for (; it != end; ++it)
+               (*it)->updatePreviews();
 }
 
 
 int BufferList::bufferNum(FileName const & fname) const
 {
-       FileNameList const & buffers = fileNames();
+       FileNameList const buffers(fileNames());
        FileNameList::const_iterator cit =
                find(buffers.begin(), buffers.end(), fname);
        if (cit == buffers.end())
@@ -331,27 +400,16 @@ int BufferList::bufferNum(FileName const & fname) const
 }
 
 
-bool BufferList::releaseChild(Buffer * parent, Buffer * child)
+void BufferList::changed(bool update_metrics) const
 {
-       LASSERT(parent, return false);
-       LASSERT(child, return false);
-       LASSERT(parent->isChild(child), return false);
-
-       // Child document has a different parent, don't close it.
-       if (child->parent() != parent)
-               return false;
-
-       BufferStorage::iterator it = bstore.begin();
-       BufferStorage::iterator end = bstore.end();
-       for (; it != end; ++it) {
-               Buffer * buf = *it;
-               if (buf != parent && buf->isChild(child)) {
-                       child->setParent(0);
-                       return false;
-               }
-       }
-       release(child);
-       return true;
+       BufferStorage::const_iterator it = bstore.begin();
+       BufferStorage::const_iterator end = bstore.end();
+       for (; it != end; ++it)
+               (*it)->changed(update_metrics);
+       it = binternal.begin();
+       end = binternal.end();
+       for (; it != end; ++it)
+               (*it)->changed(update_metrics);
 }