From 1582048a224c9968135edc62b1a15c5d8d9aaa05 Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Sat, 1 Dec 2018 02:22:26 +0100
Subject: [PATCH] Fix building without Qt Widgets GUI support

---
 CMakeLists.txt        | 12 +++++++++++-
 quickgui/controller.h |  4 +++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 166facb..b1756dc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -163,8 +163,18 @@ use_qt_utilities()
 find_package(passwordfile 3.1.0 REQUIRED)
 use_password_file()
 
-# require Qt AndroidExtras and Kirigami2
+# add further Qt/KF modules required by the
 if(ANDROID AND QUICK_GUI)
+    if(NOT WIDGETS_GUI)
+        option(ENABLE_UNDO_SUPPORT_FOR_QUICK_GUI "enables with undo/redo support for the Qt Quick GUI (requires Qt Widgets)" ON)
+        if(ENABLE_UNDO_SUPPORT_FOR_QUICK_GUI)
+            list(APPEND ADDITIONAL_QT_MODULES Widgets)
+            set_property(
+                SOURCE quickgui/controller.cpp
+                APPEND PROPERTY COMPILE_DEFINITIONS ${META_PROJECT_VARNAME}_ENABLE_UNDO_SUPPORT_FOR_QUICK_GUI
+            )
+        endif()
+    endif()
     list(APPEND ADDITIONAL_QT_MODULES AndroidExtras)
     list(APPEND ADDITIONAL_KF_MODULES Kirigami2)
 endif()
diff --git a/quickgui/controller.h b/quickgui/controller.h
index 5e63d8c..f26d77a 100644
--- a/quickgui/controller.h
+++ b/quickgui/controller.h
@@ -12,9 +12,11 @@
 
 QT_FORWARD_DECLARE_CLASS(QSettings)
 
-#ifdef PASSWORD_MANAGER_GUI_QTWIDGETS
+#if defined(PASSWORD_MANAGER_GUI_QTWIDGETS) || defined(PASSWORD_MANAGER_ENABLE_UNDO_SUPPORT_FOR_QUICK_GUI)
 #define PASSWORD_MANAGER_UNDO_SUPPORT
 #include <QUndoStack>
+#else
+QT_FORWARD_DECLARE_CLASS(QUndoStack)
 #endif
 
 namespace QtGui {