Merge branch 'mihaizh-fix_filebox_multi_select' into hotfix-1.7.2

.travis.yml

@@ -44,7 +44,7 @@ matrix:
 
 before_install:
   - cd ..
-  - git clone --depth=1 --branch=develop https://github.com/qPCR4vir/nana-demo.git nana-demo
+  - git clone --depth=1 --branch=master https://github.com/qPCR4vir/nana-demo.git nana-demo
   - export PATH="$HOME/bin:$PATH"
   - wget --no-check-certificate --no-clobber -O /tmp/tools/cmake https://cmake.org/files/v3.12/cmake-3.12.0-rc3-Linux-x86_64.sh || true
   - chmod -R +x /tmp/tools

source/gui/filebox.cpp

@@ -1517,6 +1517,15 @@ namespace nana
 			path_type parent_path{ str };
 			str += (len + 1);
 			
+			// if only one file was selected, the ofn.lpstrFile
+			// is returning only that file, without any parent
+			if (!*str)
+			{
+				targets.emplace_back(parent_path);
+				impl_->path = parent_path.parent_path().u8string();
+			}
+			else
+			{
 				while(*str)
 				{
 					len = ::wcslen(str);
@@ -1525,6 +1534,7 @@ namespace nana
 				}
 				impl_->path = parent_path.u8string();
 			}
+		}
 		else
 		{
 			wfile.resize(std::wcslen(wfile.data()));