Introduce a build option for DesktopChangeOSD

A build option is introduces whether the DesktopChangeOSD functionality
should be built or not. It is set to ON by default.

CMakeLists.txt

@@ -4,6 +4,7 @@ OPTION(KWIN_BUILD_DECORATIONS "Enable building of KWin decorations." ON)
 OPTION(KWIN_BUILD_KCMS "Enable building of KWin configuration modules." ON)
 OPTION(KWIN_MOBILE_EFFECTS "Only build effects relevant for mobile devices" OFF)
 OPTION(KWIN_BUILD_TABBOX "Enable building of KWin Tabbox functionality" ON)
+OPTION(KWIN_BUILD_DESKTOPCHANGEOSD "Enable building of KWin DesktopChangeOSD funtionality" ON)
 OPTION(KWIN_BUILD_SCREENEDGES "Enable building of KWin with screen edge support" ON)
 OPTION(KWIN_BUILD_SCRIPTING "Enable building of KWin with scripting support" ON)
 OPTION(KWIN_BUILD_XRENDER_COMPOSITING "Enable building of KWin with XRender Compositing support" ON)
@@ -13,6 +14,7 @@ if(KWIN_PLASMA_ACTIVE)
     set(KWIN_BUILD_DECORATIONS OFF)
     set(KWIN_BUILD_KCMS OFF)
     set(KWIN_BUILD_TABBOX OFF)
+    set(KWIN_BUILD_DESKTOPCHANGEOSD OFF)
     set(KWIN_BUILD_SCREENEDGES OFF)
     set(KWIN_BUILD_SCRIPTING OFF)
     set(KWIN_BUILD_XRENDER_COMPOSITING OFF)
@@ -108,7 +110,6 @@ set(kwin_KDEINIT_SRCS
    utils.cpp 
    layers.cpp 
    main.cpp 
-   desktopchangeosd.cpp 
    options.cpp 
    outline.cpp
    plugins.cpp 
@@ -188,6 +189,12 @@ if(KWIN_BUILD_TABBOX)
   )
 endif(KWIN_BUILD_TABBOX)
 
+if(KWIN_BUILD_DESKTOPCHANGEOSD)
+    set(kwin_KDEINIT_SRCS ${kwin_KDEINIT_SRCS}
+        desktopchangeosd.cpp
+    )
+endif(KWIN_BUILD_DESKTOPCHANGEOSD)
+
 if(KWIN_BUILD_SCREENEDGES)
     set(
         kwin_KDEINIT_SRCS ${kwin_KDEINIT_SRCS}

config-kwin.h.cmake

@@ -2,5 +2,6 @@
 #cmakedefine HAVE_CAPTURY 1
 #cmakedefine KWIN_BUILD_DECORATIONS 1
 #cmakedefine KWIN_BUILD_TABBOX 1
+#cmakedefine KWIN_BUILD_DESKTOPCHANGEOSD 1
 #cmakedefine KWIN_BUILD_SCREENEDGES 1
 #cmakedefine KWIN_BUILD_SCRIPTING 1

workspace.cpp

@@ -48,7 +48,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifdef KWIN_BUILD_TABBOX
 #include "tabbox.h"
 #endif
+#ifdef KWIN_BUILD_DESKTOPCHANGEOSD
 #include "desktopchangeosd.h"
+#endif
 #include "atoms.h"
 #include "placement.h"
 #include "notifications.h"
@@ -128,7 +130,9 @@ Workspace::Workspace(bool restore)
 #ifdef KWIN_BUILD_TABBOX
     , tab_box(0)
 #endif
+#ifdef KWIN_BUILD_DESKTOPCHANGEOSD
     , desktop_change_osd(0)
+#endif
     , popup(0)
     , advanced_popup(0)
     , trans_popup(0)
@@ -232,7 +236,9 @@ Workspace::Workspace(bool restore)
 
     client_keys = new KActionCollection(this);
     initShortcuts();
+#ifdef KWIN_BUILD_DESKTOPCHANGEOSD
     desktop_change_osd = new DesktopChangeOSD(this);
+#endif
     m_outline = new Outline();
 
     init();
@@ -354,7 +360,9 @@ void Workspace::init()
 
     loadDesktopSettings();
     updateDesktopLayout();
+#ifdef KWIN_BUILD_DESKTOPCHANGEOSD
     desktop_change_osd->numberDesktopsChanged();
+#endif
     // Extra NETRootInfo instance in Client mode is needed to get the values of the properties
     NETRootInfo client_info(display(), NET::ActiveWindow | NET::CurrentDesktop);
     int initial_desktop;
@@ -482,7 +490,9 @@ Workspace::~Workspace()
             it != unmanaged.constEnd();
             ++it)
         (*it)->release();
+#ifdef KWIN_BUILD_DESKTOPCHANGEOSD
     delete desktop_change_osd;
+#endif
     delete m_outline;
     discardPopup();
     XDeleteProperty(display(), rootWindow(), atoms->kwin_running);
@@ -926,7 +936,9 @@ void Workspace::slotReconfigure()
 #ifdef KWIN_BUILD_TABBOX
     tab_box->reconfigure();
 #endif
+#ifdef KWIN_BUILD_DESKTOPCHANGEOSD
     desktop_change_osd->reconfigure();
+#endif
     initPositioning->reinitCascading(0);
     discardPopup();
     forEachClient(CheckIgnoreFocusStealingProcedure());
@@ -1546,8 +1558,10 @@ void Workspace::setNumberOfDesktops(int n)
 
     tilingLayouts.resize(numberOfDesktops() + 1);
 
+#ifdef KWIN_BUILD_DESKTOPCHANGEOSD
     // reset the desktop change osd
     desktop_change_osd->numberDesktopsChanged();
+#endif
 
     saveDesktopSettings();
     emit numberDesktopsChanged(old_number_of_desktops);

workspace.h

@@ -72,7 +72,9 @@ class Client;
 class Tile;
 class TilingLayout;
 class ClientGroup;
+#ifdef KWIN_BUILD_DESKTOPCHANGEOSD
 class DesktopChangeOSD;
+#endif
 class Outline;
 class RootInfo;
 class PluginMgr;
@@ -846,7 +848,9 @@ private:
 #ifdef KWIN_BUILD_TABBOX
     TabBox::TabBox* tab_box;
 #endif
+#ifdef KWIN_BUILD_DESKTOPCHANGEOSD
     DesktopChangeOSD* desktop_change_osd;
+#endif
 
     QMenu* popup;
     QMenu* advanced_popup;