Modify screen savers detection that the XSCREENSAVER_DIRS

and XSCREENSAVER_CONFIG_DIRS variables allow multiple paths.

Likewise, the XSCREENSAVER HACKS DIRS variable used to search
for an screen saver executable can contain multiple paths.

This relates to TDE/tdeartwork#19.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 58d7c360547e57857982fafd72b8a2086906c7d7)

4 files changed, 64 insertions, 51 deletions

diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index 070c32f02..93a15724e 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -317,10 +317,10 @@ if( WITH_XSCREENSAVER )
   # where xscreensaver stores its executables. So give the user the possibility
   # to define XSCREENSAVER_DIR and speficy the location manually.
   include( FindXscreensaver.cmake ) # not really good practise
-  if( NOT XSCREENSAVER_DIR )
+  if( NOT XSCREENSAVER_DIRS )
     tde_message_fatal(
-      "xscreensaver is requested, but cmake can not determine the location of XSCREENSAVER_DIR
- You have to either specify it manually with e.g. -DXSCREENSAVER_DIR=/usr/lib/misc/xscreensaver/
+      "xscreensaver is requested, but cmake can not determine the location of XSCREENSAVER_DIRS
+ You have to either specify it manually with e.g. -DXSCREENSAVER_DIRS=/usr/lib/misc/xscreensaver/
  or make sure that xscreensaver installed properly" )
   endif( )
 
diff --git a/FindXscreensaver.cmake b/FindXscreensaver.cmake
index 72ee19eda..93ca210ef 100644
--- a/FindXscreensaver.cmake
+++ b/FindXscreensaver.cmake
@@ -8,29 +8,7 @@
 
 if (NOT XSCREENSAVER_FOUND)
   set(xscreensaver_alldirs)
-  set(xscreensaver_checkdirs ${TDE_INCLUDE_DIR}
-   	/usr/
-	/usr/local/
-   	/opt/local/
-   	/usr/X11R6/
-   	/opt/kde/
-   	/opt/kde3/
-   	/usr/kde/
-   	/usr/local/kde/
-   	/usr/local/xscreensaver/
-   	/usr/openwin/lib/xscreensaver/
-   	/etc/ )
-  foreach(suffix lib${LIB_SUFFIX}/xscreensaver lib${LIB_SUFFIX}/misc/xscreensaver lib/xscreensaver lib64/xscreensaver libexec/xscreensaver 
-bin/xscreensaver-hacks hacks)
-     foreach(xscreensaver_path ${xscreensaver_checkdirs} )
-        set(xscreensaver_alldirs ${xscreensaver_alldirs} ${xscreensaver_path}/${suffix})
-     endforeach(xscreensaver_path ${xscreensaver_checkdirs} )
-  endforeach(suffix lib${LIB_SUFFIX}/xscreensaver lib/xscreensaver lib64/xscreensaver libexec/xscreensaver bin/xscreensaver-hacks hacks)
-  FIND_PATH(XSCREENSAVER_DIR deco ${xscreensaver_alldirs})
-
-  set(XSCREENSAVER_CONFIG_DIR)
-  FIND_PATH(XSCREENSAVER_CONFIG_DECO config/deco.xml
-    ${TDE_INCLUDE_DIR}
+  set(xscreensaver_checkdirs
     /usr/
     /usr/local/
     /opt/local/
@@ -45,33 +23,58 @@ bin/xscreensaver-hacks hacks)
     /usr/openwin/lib/xscreensaver/
     /etc/
   )
-  #MESSAGE(STATUS "XSCREENSAVER_CONFIG_DIR :<${XSCREENSAVER_CONFIG_DIR}>")
+  foreach(suffix lib${LIB_SUFFIX}/xscreensaver lib${LIB_SUFFIX}/misc/xscreensaver
+                 lib/xscreensaver lib64/xscreensaver libexec/xscreensaver
+                 bin/xscreensaver-hacks hacks)
+     foreach(xscreensaver_path ${xscreensaver_checkdirs} )
+        set(xscreensaver_alldirs ${xscreensaver_alldirs} ${xscreensaver_path}/${suffix})
+     endforeach(xscreensaver_path ${xscreensaver_checkdirs} )
+  endforeach()
+
+  set(XSCREENSAVER_DIRS)
+  FIND_PATH(XSCREENSAVER_DIR_DECO deco ${xscreensaver_alldirs})
+  FIND_PATH(XSCREENSAVER_DIR_FLUX flux ${xscreensaver_alldirs})
+  if(XSCREENSAVER_DIR_DECO)
+    list(APPEND XSCREENSAVER_DIRS ${XSCREENSAVER_DIR_DECO})
+  endif(XSCREENSAVER_DIR_DECO)
+  if(XSCREENSAVER_DIR_FLUX)
+    list(APPEND XSCREENSAVER_DIRS ${XSCREENSAVER_DIR_FLUX})
+  endif(XSCREENSAVER_DIR_FLUX)
+  list( REMOVE_DUPLICATES XSCREENSAVER_DIRS )
+  string( REPLACE ";" ":" XSCREENSAVER_DIRS "${XSCREENSAVER_DIRS}" )
 
+  set(XSCREENSAVER_CONFIG_DIRS)
+  FIND_PATH(XSCREENSAVER_CONFIG_DECO config/deco.xml ${xscreensaver_checkdirs} )
+  FIND_PATH(XSCREENSAVER_CONFIG_FLUX config/flux.xml ${xscreensaver_checkdirs} )
   if(XSCREENSAVER_CONFIG_DECO)
-	set(XSCREENSAVER_CONFIG_DIR "${XSCREENSAVER_CONFIG_DECO}/config/")
-	#MESSAGE(STATUS "XSCREENSAVER_CONFIG_DIR <${XSCREENSAVER_CONFIG_DIR}>")
+    list(APPEND XSCREENSAVER_CONFIG_DIRS "${XSCREENSAVER_CONFIG_DECO}/config/")
   endif(XSCREENSAVER_CONFIG_DECO)
-
+  if(XSCREENSAVER_CONFIG_FLUX)
+    list(APPEND XSCREENSAVER_CONFIG_DIRS "${XSCREENSAVER_CONFIG_FLUX}/config/")
+  endif(XSCREENSAVER_CONFIG_FLUX)
 
   # Try and locate XScreenSaver config when path doesn't include config
-  if(NOT XSCREENSAVER_CONFIG_DIR)
-    FIND_PATH(XSCREENSAVER_CONFIG_DIR deco.xml
+  if(NOT XSCREENSAVER_CONFIG_DIRS)
+    FIND_PATH(XSCREENSAVER_CONFIG_DIRS deco.xml
       /etc/xscreensaver
       )
-  endif(NOT XSCREENSAVER_CONFIG_DIR)
+  endif(NOT XSCREENSAVER_CONFIG_DIRS)
+
+  list( REMOVE_DUPLICATES XSCREENSAVER_CONFIG_DIRS )
+  string( REPLACE ";" ":" XSCREENSAVER_CONFIG_DIRS "${XSCREENSAVER_CONFIG_DIRS}" )
 endif(NOT XSCREENSAVER_FOUND)
 
 #MESSAGE(STATUS "XSCREENSAVER_CONFIG_DIR :<${XSCREENSAVER_CONFIG_DIR}>")
 #MESSAGE(STATUS "XSCREENSAVER_DIR :<${XSCREENSAVER_DIR}>")
 
 # Need to fix hack
-if(XSCREENSAVER_DIR AND XSCREENSAVER_CONFIG_DIR)
+if(XSCREENSAVER_DIRS AND XSCREENSAVER_CONFIG_DIRS)
 	set(XSCREENSAVER_FOUND TRUE)
-endif(XSCREENSAVER_DIR AND XSCREENSAVER_CONFIG_DIR)
+endif(XSCREENSAVER_DIRS AND XSCREENSAVER_CONFIG_DIRS)
 
 if (XSCREENSAVER_FOUND)
   if (NOT Xscreensaver_FIND_QUIETLY)
-    message(STATUS "Found SCREENSAVER_CONFIG_DIR <${XSCREENSAVER_CONFIG_DIR}>")
+    message(STATUS "Found SCREENSAVER_CONFIG_DIRS <${XSCREENSAVER_CONFIG_DIRS}>")
   endif (NOT Xscreensaver_FIND_QUIETLY)
 else (XSCREENSAVER_FOUND)
   if (Xscreensaver_FIND_REQUIRED)
@@ -79,5 +82,4 @@ else (XSCREENSAVER_FOUND)
   endif (Xscreensaver_FIND_REQUIRED)
 endif (XSCREENSAVER_FOUND)
 
-
-MARK_AS_ADVANCED(XSCREENSAVER_DIR XSCREENSAVER_CONFIG_DIR)
+MARK_AS_ADVANCED(XSCREENSAVER_DIRS XSCREENSAVER_CONFIG_DIRS)
diff --git a/config.h.cmake b/config.h.cmake
index 2e8cb800b..a6253cd7d 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -35,7 +35,7 @@
 #cmakedefine HAVE_XSCREENSAVER 1
 
 /* Defines where xscreensaver stores its graphic hacks */
-#define XSCREENSAVER_HACKS_DIR "@XSCREENSAVER_DIR@"
+#define XSCREENSAVER_HACKS_DIRS "@XSCREENSAVER_DIRS@"
 
 // libart
 #cmakedefine HAVE_LIBART 1
diff --git a/kcontrol/screensaver/scrnsave.cpp b/kcontrol/screensaver/scrnsave.cpp
index b66f7bbd6..cd30fa1a1 100644
--- a/kcontrol/screensaver/scrnsave.cpp
+++ b/kcontrol/screensaver/scrnsave.cpp
@@ -523,28 +523,39 @@ void KScreenSaver::findSavers()
             i++, mNumLoaded++ ) {
         TQString file = mSaverFileList[mNumLoaded];
         SaverConfig *saver = new SaverConfig;
-        if (saver->read(file)) {
-            TQString saverexec = TQString("%1/%2").arg(XSCREENSAVER_HACKS_DIR).arg(saver->exec());
+        bool saverFound = false;
+        if (saver->read(file))
+        {
             // find the xscreensaver executable
             //work around a TDEStandardDirs::findExe() "feature" where it looks in $TDEDIR/bin first no matter what and sometimes finds the wrong executable
             TQFileInfo checkExe;
-            checkExe.setFile(saverexec);
-            if (checkExe.exists() && checkExe.isExecutable() && checkExe.isFile()) {
-                mSaverList.append(saver);
+            TQStringList saverPaths = TQStringList::split(':', XSCREENSAVER_HACKS_DIRS);
+            for (TQStringList::ConstIterator it = saverPaths.begin(); it != saverPaths.end(); ++it)
+            {
+                checkExe.setFile((*it) + "/" + saver->exec());
+                if (checkExe.exists() && checkExe.isExecutable() && checkExe.isFile())
+                {
+                    mSaverList.append(saver);
+                    saverFound = true;
+                    break;
+                }
             }
-            else {
+
+            if (!saverFound)
+            {
                 // Executable not present in XScreenSaver directory!
                 // Try standard paths
-                if (TDEStandardDirs::findExe(saver->exec()) != TQString::null) {
+                if (TDEStandardDirs::findExe(saver->exec()) != TQString::null)
+                {
                     mSaverList.append(saver);
-                }
-                else {
-                    delete saver;
+                    saverFound = true;
                 }
             }
         }
-        else {
-            delete saver;
+
+        if (!saverFound)
+        {
+          delete saver;
         }
     }