Properly fix task tray background glitches

Ensure session is fully locked before switching to new VT when lock is requested
(cherry picked from commit 3cce16c2543ebd7441477b466b35c89333eef28c)

6 files changed, 39 insertions, 25 deletions

diff --git a/kdesktop/lock/lockprocess.cc b/kdesktop/lock/lockprocess.cc
index a0d8b781e..ff12d2059 100644
--- a/kdesktop/lock/lockprocess.cc
+++ b/kdesktop/lock/lockprocess.cc
@@ -173,6 +173,7 @@ extern bool trinity_desktop_lock_hide_active_windows;
 extern bool trinity_desktop_lock_forced;
 
 extern bool argb_visual;
+extern pid_t kdesktop_pid;
 
 extern TQXLibWindowList trinity_desktop_lock_hidden_window_list;
 
@@ -224,6 +225,7 @@ LockProcess::LockProcess()
       mHackStartupEnabled(true),
       mOverrideHackStartupEnabled(false),
       mResizingDesktopLock(false),
+      mFullyOnlineSent(false),
       m_rootPixmap(NULL),
       mBackingStartupDelayTimer(0),
       m_startupStatusDialog(NULL),
@@ -1091,6 +1093,8 @@ void LockProcess::createSaverWindow()
         }
     }
 
+    fullyOnline();
+
     kdDebug(1204) << "Saver window Id: " << winId() << endl;
 }
 
@@ -2751,4 +2755,19 @@ void LockProcess::slotMouseActivity(XEvent *event)
 	}
 }
 
+void LockProcess::fullyOnline() {
+	if (!mFullyOnlineSent) {
+		if (kdesktop_pid > 0) {
+			if (kill(kdesktop_pid, SIGUSR2) < 0) {
+				// The controlling kdesktop process probably died.  Commit suicide...
+				// Exit uncleanly
+				exit(1);
+			}
+			else {
+				mFullyOnlineSent = true;
+			}
+		}
+	}
+}
+
 #include "lockprocess.moc"
diff --git a/kdesktop/lock/lockprocess.h b/kdesktop/lock/lockprocess.h
index bac71823e..1630d3a78 100644
--- a/kdesktop/lock/lockprocess.h
+++ b/kdesktop/lock/lockprocess.h
@@ -133,6 +133,7 @@ private:
     void windowAdded( WId window, bool managed );
     void resume( bool force );
     static TQVariant getConf(void *ctx, const char *key, const TQVariant &dflt);
+    void fullyOnline();
 
     bool        mLocked;
     int         mLockGrace;
@@ -198,6 +199,7 @@ private:
     bool        mHackStartupEnabled;
     bool        mOverrideHackStartupEnabled;
     bool        mResizingDesktopLock;
+    bool        mFullyOnlineSent;
 
     TQPixmap    backingPixmap;
     KRootPixmap  *m_rootPixmap;
diff --git a/kdesktop/lock/main.cc b/kdesktop/lock/main.cc
index b920399c2..74b7b7f26 100644
--- a/kdesktop/lock/main.cc
+++ b/kdesktop/lock/main.cc
@@ -78,6 +78,7 @@ bool signalled_run;
 bool in_internal_mode = FALSE;
 
 bool argb_visual = FALSE;
+pid_t kdesktop_pid = -1;
 
 static void sigusr1_handler(int)
 {
@@ -449,8 +450,8 @@ int main( int argc, char **argv )
             return ret;
         }
         else {
-            pid_t kdesktop_pid = atoi(args->getOption( "internal" ));
-            if (kill(kdesktop_pid, SIGUSR2) < 0) {
+            kdesktop_pid = atoi(args->getOption( "internal" ));
+            if (kill(kdesktop_pid, 0) < 0) {
                 // The controlling kdesktop process probably died.  Commit suicide...
                 return 12;
             }
diff --git a/kicker/applets/systemtray/systemtrayapplet.cpp b/kicker/applets/systemtray/systemtrayapplet.cpp
index 1a96a9372..2042f65b9 100644
--- a/kicker/applets/systemtray/systemtrayapplet.cpp
+++ b/kicker/applets/systemtray/systemtrayapplet.cpp
@@ -1130,10 +1130,8 @@ void SystemTrayApplet::setBackground()
 
 
 TrayEmbed::TrayEmbed( bool kdeTray, TQWidget* parent )
-    : QXEmbed( parent ), kde_tray( kdeTray ), m_ensureBackgroundSetTimerCount(0)
+    : QXEmbed( parent ), kde_tray( kdeTray )
 {
-    m_ensureBackgroundSetTimer = new TQTimer();
-    connect(m_ensureBackgroundSetTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(ensureBackgroundSet()));
     hide();
     m_scaledWidget = new TQWidget(parent);
     m_scaledWidget->hide();
@@ -1141,7 +1139,7 @@ TrayEmbed::TrayEmbed( bool kdeTray, TQWidget* parent )
 
 TrayEmbed::~TrayEmbed()
 {
-    delete m_ensureBackgroundSetTimer;
+    //
 }
 
 void TrayEmbed::getIconSize(int defaultIconSize)
@@ -1164,20 +1162,19 @@ void TrayEmbed::setBackground()
 {
     const TQPixmap *pbg = parentWidget()->backgroundPixmap();
 
-    if (pbg)
-    {
+    if (pbg) {
         TQPixmap bg(width(), height());
         bg.fill(parentWidget(), pos());
         setPaletteBackgroundPixmap(bg);
         setBackgroundOrigin(WidgetOrigin);
     }
-    else
+    else {
         unsetPalette();
+    }
 
     if (!isHidden())
     {
         XClearArea(x11Display(), embeddedWinId(), 0, 0, 0, 0, True);
-        m_ensureBackgroundSetTimerCount = 0;
         ensureBackgroundSet();
     }
 }
@@ -1211,8 +1208,7 @@ void TrayEmbed::ensureBackgroundSet()
 				int g = int( tqGreen( l ) );
 				int b = int( tqBlue( l ) );
 				int a = int( tqAlpha( l ) );
-				ls[x] = tqRgba( r, g, b, a );
-				XSetForeground(x11Display(), gc, (r << 16) | (g << 8) | b );
+				XSetForeground(x11Display(), gc, (a << 24) | (r << 16) | (g << 8) | b );
 				XDrawPoint(x11Display(), argbpixmap, gc, x, y);
 			}
 		}
@@ -1223,13 +1219,5 @@ void TrayEmbed::ensureBackgroundSet()
 
 		// Repaint
 		XClearArea(x11Display(), embeddedWinId(), 0, 0, 0, 0, True);
-
-		// HACK
-		// Clear background artifacts in first available timeslot after initial icon display
-		if (m_ensureBackgroundSetTimerCount < 1) {
-			m_ensureBackgroundSetTimerCount++;
-			m_ensureBackgroundSetTimer->stop();
-			m_ensureBackgroundSetTimer->start(0, TRUE);
-		}
 	}
 }
diff --git a/kicker/applets/systemtray/systemtrayapplet.h b/kicker/applets/systemtray/systemtrayapplet.h
index 84ee06ecb..d554a810e 100644
--- a/kicker/applets/systemtray/systemtrayapplet.h
+++ b/kicker/applets/systemtray/systemtrayapplet.h
@@ -135,8 +135,6 @@ public:
 private:
     bool kde_tray;
     TQWidget *m_scaledWidget;
-    TQTimer* m_ensureBackgroundSetTimer;
-    int m_ensureBackgroundSetTimerCount;
 private slots:
     void ensureBackgroundSet();
 };
diff --git a/kicker/kicker/ui/k_mnu.cpp b/kicker/kicker/ui/k_mnu.cpp
index 651d19204..950eaae1b 100644
--- a/kicker/kicker/ui/k_mnu.cpp
+++ b/kicker/kicker/ui/k_mnu.cpp
@@ -448,9 +448,14 @@ extern int kicker_screen_number;
 void PanelKMenu::slotLock()
 {
     TQCString appname( "kdesktop" );
-    if ( kicker_screen_number )
+    if ( kicker_screen_number ) {
         appname.sprintf("kdesktop-screen-%d", kicker_screen_number);
-    kapp->dcopClient()->send(appname, "KScreensaverIface", "lock()", TQString(""));
+    }
+    TQCString replyType;
+    TQByteArray replyData;
+    // Block here until lock is complete
+    // If this is not done the desktop of the locked session will be shown after VT switch until the lock fully engages!
+    kapp->dcopClient()->call(appname, "KScreensaverIface", "lock()", TQCString(""), replyType, replyData);
 }
 
 void PanelKMenu::slotLogout()
@@ -520,8 +525,9 @@ void PanelKMenu::doNewSession( bool lock )
     if (result==KMessageBox::Cancel)
         return;
 
-    if (lock)
+    if (lock) {
         slotLock();
+    }
 
     DM().startReserve();
 }