From d4f00122eb4b20e5d5128e771f2f524dd70dd6f7 Mon Sep 17 00:00:00 2001
From: Enrico Forestieri <forenr@lyx.org>
Date: Mon, 22 Jun 2009 05:09:01 +0000
Subject: [PATCH] Fix bug #6020: Reverse DVI/PDF search fails with child
 documents.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@30214 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/BufferList.cpp | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/src/BufferList.cpp b/src/BufferList.cpp
index 4f6c848452..c83d3f20e2 100644
--- a/src/BufferList.cpp
+++ b/src/BufferList.cpp
@@ -327,9 +327,26 @@ 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 = changeExtension(onlyFilename(
+						(*it)->absFileName()), ".tex");
+			if (suffixIs(s, master_name))
+				return *it;
+			// if not, try with the children
+			vector<Buffer *> clist = (*it)->getChildren();
+			vector<Buffer *>::const_iterator cit = clist.begin();
+			vector<Buffer *>::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;
 }