Handle properly undo groups in embedded work areas

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.

(cherry picked from commit 8b107f0490)
This commit is contained in:
Jean-Marc Lasgouttes 2017-12-13 10:38:47 +01:00
parent cdf84eabc4
commit 02b248d270
5 changed files with 23 additions and 5 deletions

View File

@ -271,7 +271,7 @@ bool BufferList::exists(FileName const & fname) const
}
bool BufferList::isLoaded(Buffer const * b) const
bool BufferList::isLoaded(Buffer const * b) const
{
if (!b)
return false;
@ -281,6 +281,16 @@ bool BufferList::exists(FileName const & fname) const
}
bool BufferList::isInternal(Buffer const * b) const
{
if (!b)
return false;
BufferStorage::const_iterator cit =
find(binternal.begin(), binternal.end(), b);
return cit != binternal.end();
}
bool BufferList::isOthersChild(Buffer * parent, Buffer * child)
{
LASSERT(parent, return false);

View File

@ -84,6 +84,9 @@ public:
/// returns true if the buffer is loaded
bool isLoaded(Buffer const * b) const;
/// returns true if the buffer is known as internal buffer
bool isInternal(Buffer const * b) const;
/// \return index of named buffer in buffer list
int bufferNum(support::FileName const & name) const;

View File

@ -562,7 +562,8 @@ void Undo::beginUndoGroup()
if (d->group_level_ == 0) {
// create a new group
++d->group_id_;
LYXERR(Debug::UNDO, "+++++++Creating new group " << d->group_id_);
LYXERR(Debug::UNDO, "+++++++ Creating new group " << d->group_id_
<< " for buffer " << &d->buffer_);
}
++d->group_level_;
}
@ -586,7 +587,8 @@ void Undo::endUndoGroup()
if (d->group_level_ == 0) {
// real end of the group
d->group_cur_before_ = CursorData();
LYXERR(Debug::UNDO, "-------End of group " << d->group_id_);
LYXERR(Debug::UNDO, "------- End of group " << d->group_id_
<< " of buffer " << &d->buffer_);
}
}

View File

@ -1388,7 +1388,7 @@ DispatchResult const & GuiApplication::dispatch(FuncRequest const & cmd)
updateCurrentView(cmd, dr);
// the buffer may have been closed by one action
if (theBufferList().isLoaded(buffer))
if (theBufferList().isLoaded(buffer) || theBufferList().isInternal(buffer))
buffer->undo().endUndoGroup();
d->dispatch_result_ = dr;
@ -1863,7 +1863,7 @@ void GuiApplication::dispatch(FuncRequest const & cmd, DispatchResult & dr)
dispatch(func);
}
// the buffer may have been closed by one action
if (theBufferList().isLoaded(buffer))
if (theBufferList().isLoaded(buffer) || theBufferList().isInternal(buffer))
buffer->undo().endUndoGroup();
break;
}

View File

@ -100,6 +100,9 @@ What's new
- Fix crash with undo and child documents (bug 10643).
- Fix completely broken undo in Advanced Find & Replace edit areas
(bug 10847).
- Fix crash when changing preview preferences while previewable
external inset is open (bug 10785).