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https://git.lyx.org/repos/lyx.git
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76cf529711
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6875 a592a061-630c-0410-9148-cb99ea01b6c8
613 lines
14 KiB
C
613 lines
14 KiB
C
/**
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* \file bufferlist.C
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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 "lyx_main.h"
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#include "lastfiles.h"
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#include "debug.h"
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#include "lyxrc.h"
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#include "lyxtext.h"
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#include "lyx_cb.h"
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#include "bufferview_funcs.h"
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#include "BufferView.h"
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#include "gettext.h"
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#include "frontends/LyXView.h"
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#include "vc-backend.h"
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#include "TextCache.h"
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#include "lyxlex.h"
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#include "frontends/Alert.h"
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#include "support/FileInfo.h"
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#include "support/filetools.h"
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#include "support/lyxmanip.h"
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#include "support/lyxfunctional.h"
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#include "support/LAssert.h"
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#include <boost/bind.hpp>
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#include "support/BoostFormat.h"
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#include <cassert>
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#include <algorithm>
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#include <functional>
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using std::vector;
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using std::find;
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using std::endl;
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using std::find_if;
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using std::for_each;
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using std::mem_fun;
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extern BufferView * current_view;
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BufferList::BufferList()
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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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bool BufferList::quitWriteBuffer(Buffer * buf)
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{
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string file;
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if (buf->isUnnamed())
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file = OnlyFilename(buf->fileName());
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else
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file = MakeDisplayPath(buf->fileName(), 30);
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#if USE_BOOST_FORMAT
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boost::format fmt(_("The document %1$s has unsaved changes.\n\nDo you want to save the document?"));
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fmt % file;
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string text = fmt.str();
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#else
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string text = _("The document ");
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text += file + _(" has unsaved changes.\n\nWhat do you want to do with it?");
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#endif
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int const ret = Alert::prompt(_("Save changed document?"),
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text, 0, 2, _("&Save Changes"), _("&Discard Changes"), _("&Cancel"));
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if (ret == 0) {
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// FIXME: WriteAs can be asynch !
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// but not right now...maybe we should remove that
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bool succeeded;
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if (buf->isUnnamed())
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succeeded = WriteAs(current_view, buf);
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else
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succeeded = MenuWrite(current_view, buf);
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if (!succeeded)
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return false;
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} else if (ret == 1) {
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// if we crash after this we could
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// have no autosave file but I guess
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// this is really inprobable (Jug)
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if (buf->isUnnamed())
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removeAutosaveFile(buf->fileName());
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} else {
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return false;
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}
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return true;
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}
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bool BufferList::quitWriteAll()
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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 ((*it)->isClean())
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continue;
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if (!quitWriteBuffer(*it))
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return false;
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}
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return true;
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}
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void BufferList::release(Buffer * buf)
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{
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lyx::Assert(buf);
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BufferStorage::iterator it = find(bstore.begin(), bstore.end(), buf);
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if (it != bstore.end()) {
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// Make sure that we don't store a LyXText in
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// the textcache that points to the buffer
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// we just deleted.
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Buffer * tmp = (*it);
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bstore.erase(it);
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textcache.removeAllWithBuffer(tmp);
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delete tmp;
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}
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}
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Buffer * BufferList::newBuffer(string const & s, bool ronly)
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{
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Buffer * tmpbuf = new Buffer(s, ronly);
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tmpbuf->params.useClassDefaults();
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lyxerr[Debug::INFO] << "Assigning to buffer "
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<< bstore.size() << endl;
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bstore.push_back(tmpbuf);
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return tmpbuf;
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}
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void BufferList::closeAll()
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{
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// Since we are closing we can just as well delete all
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// in the textcache this will also speed the closing/quiting up a bit.
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textcache.clear();
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while (!bstore.empty()) {
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close(bstore.front(), false);
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}
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}
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bool BufferList::close(Buffer * buf, bool ask)
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{
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lyx::Assert(buf);
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// FIXME: is the quitting check still necessary ?
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if (!ask || buf->isClean() || quitting || buf->paragraphs.empty()) {
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release(buf);
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return true;
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}
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string fname;
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if (buf->isUnnamed())
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fname = OnlyFilename(buf->fileName());
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else
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fname = MakeDisplayPath(buf->fileName(), 30);
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#if USE_BOOST_FORMAT
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boost::format fmt(_("The document %1$s has unsaved changes.\n\nDo you want to save the document?"));
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fmt % fname;
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string text = fmt.str();
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#else
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string text = _("The document ");
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text += fname + _(" has unsaved changes.\n\nWhat do you want to do with it?");
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#endif
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int const ret = Alert::prompt(_("Save changed document?"),
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text, 0, 2, _("&Save Changes"), _("&Discard Changes"), _("&Cancel"));
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if (ret == 0) {
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if (buf->isUnnamed()) {
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if (!WriteAs(current_view, buf))
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return false;
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} else if (buf->save()) {
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lastfiles->newFile(buf->fileName());
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} else {
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return false;
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}
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} else if (ret == 2) {
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return false;
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}
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if (buf->isUnnamed()) {
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removeAutosaveFile(buf->fileName());
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}
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release(buf);
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return true;
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}
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vector<string> const BufferList::getFileNames() const
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{
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vector<string> nvec;
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std::copy(bstore.begin(), bstore.end(),
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lyx::back_inserter_fun(nvec, &Buffer::fileName));
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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::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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void BufferList::updateIncludedTeXfiles(string const & mastertmpdir)
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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 (!(*it)->isDepClean(mastertmpdir)) {
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string writefile = mastertmpdir;
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writefile += '/';
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writefile += (*it)->getLatexName();
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(*it)->makeLaTeXFile(writefile, mastertmpdir,
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false, true);
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(*it)->markDepClean(mastertmpdir);
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}
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}
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}
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void BufferList::emergencyWriteAll()
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{
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for_each(bstore.begin(), bstore.end(),
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boost::bind(&BufferList::emergencyWrite, this, _1));
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}
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void BufferList::emergencyWrite(Buffer * buf)
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{
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// assert(buf) // this is not good since C assert takes an int
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// and a pointer is a long (JMarc)
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assert(buf != 0); // use c assert to avoid a loop
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// No need to save if the buffer has not changed.
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if (buf->isClean())
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return;
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string const doc = buf->isUnnamed()
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? OnlyFilename(buf->fileName()) : buf->fileName();
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#if USE_BOOST_FORMAT
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lyxerr << boost::format(_("LyX: Attempting to save document %1$s"))
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% doc
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<< endl;
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#else
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lyxerr << _("LyX: Attempting to save document ") << doc << endl;
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#endif
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// We try to save three places:
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// 1) Same place as document. Unless it is an unnamed doc.
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if (!buf->isUnnamed()) {
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string s = buf->fileName();
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s += ".emergency";
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lyxerr << " " << s << endl;
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if (buf->writeFile(s)) {
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buf->markClean();
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lyxerr << _(" Save seems successful. Phew.") << endl;
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return;
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} else {
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lyxerr << _(" Save failed! Trying...") << endl;
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}
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}
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// 2) In HOME directory.
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string s = AddName(GetEnvPath("HOME"), buf->fileName());
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s += ".emergency";
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lyxerr << ' ' << s << endl;
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if (buf->writeFile(s)) {
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buf->markClean();
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lyxerr << _(" Save seems successful. Phew.") << endl;
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return;
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}
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lyxerr << _(" Save failed! Trying...") << endl;
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// 3) In "/tmp" directory.
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// MakeAbsPath to prepend the current
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// drive letter on OS/2
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s = AddName(MakeAbsPath("/tmp/"), buf->fileName());
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s += ".emergency";
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lyxerr << ' ' << s << endl;
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if (buf->writeFile(s)) {
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buf->markClean();
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lyxerr << _(" Save seems successful. Phew.") << endl;
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return;
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}
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lyxerr << _(" Save failed! Bummer. Document is lost.") << endl;
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}
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Buffer * BufferList::readFile(string const & s, bool ronly)
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{
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string ts(s);
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string e = OnlyPath(s);
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string a = e;
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// File information about normal file
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FileInfo fileInfo2(s);
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if (!fileInfo2.exist()) {
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string const file = MakeDisplayPath(s, 50);
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#if USE_BOOST_FORMAT
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boost::format fmt(_("The specified document\n%1$s\ncould not be read."));
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fmt % file;
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string text = fmt.str();
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#else
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string text = _("The specified document\n");
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text += file + _(" could not be read.");
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#endif
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Alert::error(_("Could not read document"), text);
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return 0;
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}
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Buffer * b = newBuffer(s, ronly);
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// Check if emergency save file exists and is newer.
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e += OnlyFilename(s) + ".emergency";
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FileInfo fileInfoE(e);
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bool use_emergency = false;
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if (fileInfoE.exist() && fileInfo2.exist()) {
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if (fileInfoE.getModificationTime()
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> fileInfo2.getModificationTime()) {
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string const file = MakeDisplayPath(s, 20);
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#if USE_BOOST_FORMAT
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boost::format fmt(_("An emergency save of the document %1$s exists.\n\nRecover emergency save?"));
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fmt % file;
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string text = fmt.str();
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#else
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string text = _("An emergency save of the document ");
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text += file + _(" exists.\n\nRecover emergency save?");
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#endif
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int const ret = Alert::prompt(_("Load emergency save?"),
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text, 0, 1, _("&Recover"), _("&Load Original"));
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if (ret == 0) {
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ts = e;
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// the file is not saved if we load the
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// emergency file.
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b->markDirty();
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use_emergency = true;
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} else {
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// Here, we should delete the emergency save
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lyx::unlink(e);
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}
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}
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}
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if (!use_emergency) {
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// Now check if autosave file is newer.
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a += '#';
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a += OnlyFilename(s);
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a += '#';
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FileInfo fileInfoA(a);
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if (fileInfoA.exist() && fileInfo2.exist()) {
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if (fileInfoA.getModificationTime()
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> fileInfo2.getModificationTime()) {
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string const file = MakeDisplayPath(s, 20);
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#if USE_BOOST_FORMAT
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boost::format fmt(_("The backup of the document %1$s is newer.\n\nLoad the backup instead?"));
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fmt % file;
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string text = fmt.str();
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#else
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string text = _("The backup of the document ");
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text += file + _(" is newer.\n\nLoad the backup instead?");
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#endif
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int const ret = Alert::prompt(_("Load backup?"),
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text, 0, 1, _("&Load backup"), _("Load &original"));
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if (ret == 0) {
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ts = a;
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// the file is not saved if we load the
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// autosave file.
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b->markDirty();
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} else {
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// Here, we should delete the autosave
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lyx::unlink(a);
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}
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}
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}
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}
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// not sure if this is the correct place to begin LyXLex
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LyXLex lex(0, 0);
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lex.setFile(ts);
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if (b->readFile(lex, ts))
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return b;
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else {
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release(b);
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return 0;
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}
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}
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bool BufferList::exists(string const & s) const
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{
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return find_if(bstore.begin(), bstore.end(),
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lyx::compare_memfun(&Buffer::fileName, s))
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!= bstore.end();
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}
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bool BufferList::isLoaded(Buffer const * b) const
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{
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lyx::Assert(b);
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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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Buffer * BufferList::getBuffer(string const & s)
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{
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BufferStorage::iterator it =
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find_if(bstore.begin(), bstore.end(),
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lyx::compare_memfun(&Buffer::fileName, s));
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return it != bstore.end() ? (*it) : 0;
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}
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Buffer * BufferList::newFile(string const & name, string tname, bool isNamed)
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{
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// get a free buffer
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Buffer * b = newBuffer(name);
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// use defaults.lyx as a default template if it exists.
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if (tname.empty()) {
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tname = LibFileSearch("templates", "defaults.lyx");
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}
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if (!tname.empty()) {
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bool templateok = false;
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LyXLex lex(0, 0);
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lex.setFile(tname);
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if (lex.isOK()) {
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if (b->readFile(lex, tname)) {
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templateok = true;
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}
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}
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if (!templateok) {
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string const file = MakeDisplayPath(tname, 50);
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#if USE_BOOST_FORMAT
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boost::format fmt(_("The specified document template\n%1$s\ncould not be read."));
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fmt % file;
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string text = fmt.str();
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#else
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string text = _("The specified document template\n");
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text += file + _(" could not be read.");
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#endif
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Alert::error(_("Could not read template"), text);
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// no template, start with empty buffer
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b->paragraphs.set(new Paragraph);
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b->paragraphs.begin()->layout(b->params.getLyXTextClass().defaultLayout());
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}
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} else { // start with empty buffer
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b->paragraphs.set(new Paragraph);
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b->paragraphs.begin()->layout(b->params.getLyXTextClass().defaultLayout());
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}
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if (!isNamed) {
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b->setUnnamed();
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b->setFileName(name);
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}
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b->setReadonly(false);
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b->updateDocLang(b->params.language);
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return b;
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}
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Buffer * BufferList::loadLyXFile(string const & filename, bool tolastfiles)
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{
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// get absolute path of file and add ".lyx" to the filename if
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// necessary
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string s = FileSearch(string(), filename, "lyx");
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if (s.empty()) {
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s = filename;
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}
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// file already open?
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if (exists(s)) {
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string const file = MakeDisplayPath(s, 20);
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#if USE_BOOST_FORMAT
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boost::format fmt(_("The document %1$s is already loaded.\n\nDo you want to revert to the saved version?"));
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fmt % file;
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string text = fmt.str();
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#else
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string text = _("The document ");
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text += file + _(" is already loaded.\n\nDo you want to revert to the saved version?");
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#endif
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int const ret = Alert::prompt(_("Revert to saved document?"),
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text, 0, 1, _("&Revert"), _("&Switch to document"));
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if (ret == 0) {
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// FIXME: should be LFUN_REVERT
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if (!close(getBuffer(s), false)) {
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return 0;
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}
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// Fall through to new load. (Asger)
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} else {
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// Here, we pretend that we just loaded the
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// open document
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return getBuffer(s);
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}
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}
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Buffer * b = 0;
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bool ro = false;
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switch (IsFileWriteable(s)) {
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case 0:
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ro = true;
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// Fall through
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case 1:
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b = readFile(s, ro);
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if (b) {
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b->lyxvc.file_found_hook(s);
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}
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break; //fine- it's r/w
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case -1: {
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string const file = MakeDisplayPath(s, 20);
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// Here we probably should run
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if (LyXVC::file_not_found_hook(s)) {
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#if USE_BOOST_FORMAT
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boost::format fmt(_("Do you want to retrieve the document %1$s from version control?"));
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fmt % file;
|
|
string text = fmt.str();
|
|
#else
|
|
string text = _("Do you want to retrieve the document ");
|
|
text += file + _(" from version control?");
|
|
#endif
|
|
int const ret = Alert::prompt(_("Retrieve from version control?"),
|
|
text, 0, 1, _("&Retrieve"), _("&Cancel"));
|
|
|
|
if (ret == 0) {
|
|
// How can we know _how_ to do the checkout?
|
|
// With the current VC support it has to be,
|
|
// a RCS file since CVS do not have special ,v files.
|
|
RCS::retrieve(s);
|
|
return loadLyXFile(filename, tolastfiles);
|
|
}
|
|
}
|
|
|
|
#if USE_BOOST_FORMAT
|
|
boost::format fmt(_("The document %1$s does not yet exist.\n\nDo you want to create a new document?"));
|
|
fmt % file;
|
|
string text = fmt.str();
|
|
#else
|
|
string text = _("The document ");
|
|
text += file + _(" does not yet exist.\n\nDo you want to create a new document?");
|
|
#endif
|
|
int const ret = Alert::prompt(_("Create new document?"),
|
|
text, 0, 1, _("&Create"), _("Cancel"));
|
|
|
|
if (ret == 0)
|
|
b = newFile(s, string(), true);
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (b && tolastfiles)
|
|
lastfiles->newFile(b->fileName());
|
|
|
|
return b;
|
|
}
|
|
|
|
|
|
void BufferList::setCurrentAuthor(string const & name, string const & email)
|
|
{
|
|
BufferStorage::iterator it = bstore.begin();
|
|
BufferStorage::iterator end = bstore.end();
|
|
for (; it != end; ++it) {
|
|
(*it)->authors().record(0, Author(name, email));
|
|
}
|
|
}
|