Fix a number of minor flaws in the lock dialog system

If SAK usage is enabled, override KDM theme
(cherry picked from commit e92e82b761)

kdesktop/lock/lockdlg.cc

@@ -225,8 +225,15 @@ void PasswordDlg::init(GreeterPluginHandle *plugin)
 
     DCOPRef kxkb("kxkb", "kxkb");
     if( !kxkb.isNull() ) {
-        layoutsList = kxkb.call("getLayoutsList");
-        TQString currentLayout = kxkb.call("getCurrentLayout");
+        DCOPReply reply = kxkb.call("getLayoutsList");
+        if (reply.isValid()) {
+            layoutsList = reply;
+        }
+        reply = kxkb.call("getCurrentLayout");
+        TQString currentLayout;
+        if (reply.isValid()) {
+             reply.get(currentLayout);
+        }
         if( !currentLayout.isEmpty() && layoutsList.count() > 1 ) {
             currLayout = layoutsList.find(currentLayout);
             if (currLayout == layoutsList.end())

kdesktop/lock/lockprocess.cc

@@ -156,12 +156,10 @@ trinity_desktop_lock_autohide_lockdlg = TRUE;
 // Screen saver handling process.  Handles screensaver window,
 // starting screensaver hacks, and password entry.
 //
-LockProcess::LockProcess(bool child, bool useBlankOnly)
+LockProcess::LockProcess()
     : TQWidget(0L, "saver window", (trinity_desktop_lock_use_system_modal_dialogs?((WFlags)(WStyle_StaysOnTop|WStyle_Customize|WStyle_NoBorder)):((WFlags)WX11BypassWM))),
       mOpenGLVisual(0),
-      child_saver(child),
       mParent(0),
-      mUseBlankOnly(useBlankOnly),
       mShowLockDateTime(false),
       mSuspended(false),
       mVisibility(false),
@@ -200,9 +198,6 @@ LockProcess::LockProcess(bool child, bool useBlankOnly)
     setupSignals();
     setupPipe();
 
-    mShowLockDateTime = KDesktopSettings::showLockDateTime();
-    mlockDateTime = TQDateTime::currentDateTime();
-
     kapp->installX11EventFilter(this);
 
     mForceContinualLockDisplayTimer = new TQTimer( this );
@@ -216,8 +211,11 @@ LockProcess::LockProcess(bool child, bool useBlankOnly)
 
     connect(tqApp, TQT_SIGNAL(mouseInteraction(XEvent *)), TQT_SLOT(slotMouseActivity(XEvent *)));
 
-    mHackDelayStartupTimeout = trinity_desktop_lock_delay_screensaver_start?KDesktopSettings::timeout()*1000:10*1000;
-    mHackStartupEnabled = trinity_desktop_lock_delay_screensaver_start?KDesktopSettings::screenSaverEnabled():true;
+    // Try to get the root pixmap
+    if (!m_rootPixmap) m_rootPixmap = new KRootPixmap(this);
+    m_rootPixmap->setCustomPainting(true);
+    connect(m_rootPixmap, TQT_SIGNAL(backgroundUpdated(const TQPixmap &)), this, TQT_SLOT(slotPaintBackground(const TQPixmap &)));
+    m_rootPixmap->start();
 
     // Get root window size
     XWindowAttributes rootAttr;
@@ -341,6 +339,23 @@ LockProcess::~LockProcess()
     mPipeOpen_out = false;
 }
 
+//---------------------------------------------------------------------------
+//
+// Initialization for startup
+// This is where instance settings should be set--all objects should have already been created in the constructor above
+//
+void LockProcess::init(bool child, bool useBlankOnly)
+{
+    child_saver = child;
+    mUseBlankOnly = useBlankOnly;
+
+    mShowLockDateTime = KDesktopSettings::showLockDateTime();
+    mlockDateTime = TQDateTime::currentDateTime();
+
+    mHackDelayStartupTimeout = trinity_desktop_lock_delay_screensaver_start?KDesktopSettings::timeout()*1000:10*1000;
+    mHackStartupEnabled = trinity_desktop_lock_delay_screensaver_start?KDesktopSettings::screenSaverEnabled():true;
+}
+
 static int signal_pipe[2];
 
 static void sigterm_handler(int)

kdesktop/lock/lockprocess.h

@@ -48,9 +48,11 @@ class LockProcess
 {
     Q_OBJECT
 public:
-    LockProcess(bool child_saver = false, bool useBlankOnly = false);
+    LockProcess();
     ~LockProcess();
 
+    void init(bool child_saver = false, bool useBlankOnly = false);
+
     bool lock();
 
     bool defaultSave();

kdesktop/lock/main.cc

@@ -201,7 +201,6 @@ int main( int argc, char **argv )
         trinity_desktop_lock_use_system_modal_dialogs = !KDesktopSettings::useUnmanagedLockWindows();
         trinity_desktop_lock_delay_screensaver_start = KDesktopSettings::delaySaverStart();
 
-        // RAJA
         struct stat st;
         KSimpleConfig* tdmconfig;
         if( stat( KDE_CONFDIR "/kdm/kdmdistrc" , &st ) == 0) {
@@ -212,7 +211,11 @@ int main( int argc, char **argv )
         }
         tdmconfig->setGroup("X-*-Greeter");
         trinity_desktop_lock_use_sak = tdmconfig->readBoolEntry("UseSAK", true);
-        delete tdmconfig;
+
+        LockProcess process;
+
+        // Start loading core functions, such as the desktop wallpaper interface
+        app.processEvents();
 
         if (args->isSet( "internal" )) {
             while (signalled_run == FALSE) {
@@ -265,11 +268,25 @@ int main( int argc, char **argv )
             }
         }
 
+        // Reload settings to make sure they reflect reality
+        KDesktopSettings::self()->readConfig();
+        tdmconfig->reparseConfiguration();
+        trinity_desktop_lock_use_system_modal_dialogs = !KDesktopSettings::useUnmanagedLockWindows();
+        trinity_desktop_lock_delay_screensaver_start = KDesktopSettings::delaySaverStart();
+        if (trinity_desktop_lock_use_system_modal_dialogs) {
+            trinity_desktop_lock_use_sak = tdmconfig->readBoolEntry("UseSAK", true);
+        }
+        else {
+            trinity_desktop_lock_use_sak = false; // If SAK is enabled with unmanaged windows, the SAK dialog will never close and will "burn in" the screen
+        }
+
+        delete tdmconfig;
+
         if (args->isSet( "forcelock" ) || (signalled_forcelock == TRUE)) {
             trinity_desktop_lock_forced = TRUE;
         }
 
-        LockProcess process(child, (args->isSet( "blank" ) || (signalled_blank == TRUE)));
+        process.init(child, (args->isSet( "blank" ) || (signalled_blank == TRUE)));
         if (!child) {
             process.setChildren(child_sockets);
         }

kdm/kfrontend/kgapp.cpp

@@ -371,7 +371,7 @@ kg_main( const char *argv0 )
 			if ((cmd != G_GreetTimed && !_autoLoginAgain) ||
 			    _autoLoginUser.isEmpty())
 				_autoLoginDelay = 0;
-			if (_useTheme && !_theme.isEmpty()) {
+			if (_useTheme && !_theme.isEmpty() && !trinity_desktop_lock_use_sak) {
 				// Qt4 has a nasty habit of generating BadWindow errors in normal operation, so we simply ignore them
 				// This also prevents the user from being dropped to a console login if Xorg glitches or is buggy
 				XSetErrorHandler( ignoreXError );