Ensure desktop is completely hidden before sending fullyOnline()

Do not block kdesktop process while waiting for kdesktop_lock to engage prior to VT switch/new VT requests made from within kdesktop
(cherry picked from commit 78d33c29157b8e3a0b81c36f73ec5f958439565c)

4 files changed, 42 insertions, 15 deletions

diff --git a/kdesktop/krootwm.cc b/kdesktop/krootwm.cc
index 6ca1862b2..c14d1326c 100644
--- a/kdesktop/krootwm.cc
+++ b/kdesktop/krootwm.cc
@@ -83,7 +83,6 @@ KRootWm::KRootWm(SaverEngine* _saver, KDesktop* _desktop) : TQObject(_desktop),
   customMenu2 = 0;
   m_configDialog = 0;
 
-
   // Creates the new menu
   menuBar = 0; // no menubar yet
   menuNew = 0;
@@ -825,7 +824,6 @@ void KRootWm::slotCascadeWindows() {
 
 void KRootWm::slotLock() {
 	m_pSaver->lockScreen();
-	m_pSaver->waitForLockEngage();
 }
 
 
@@ -872,11 +870,7 @@ void KRootWm::slotPopulateSessions()
 void KRootWm::slotSessionActivated( int ent )
 {
     if (ent > 0 && !sessionsMenu->isItemChecked( ent )) {
-        m_pSaver->lockScreen();
-        if (!m_pSaver->waitForLockEngage()) {
-            return;
-        }
-        DM().switchVT( ent );
+        m_pSaver->lockScreenAndSwitchSession(ent);
     }
 }
 
@@ -914,13 +908,11 @@ void KRootWm::doNewSession( bool lock )
         return;
 
     if (lock) {
-        m_pSaver->lockScreen();
-        if (!m_pSaver->waitForLockEngage()) {
-            return;
-        }
+        m_pSaver->lockScreenAndDoNewSession();
+    }
+    else {
+        DM().startReserve();
     }
-
-    DM().startReserve();
 }
 
 void KRootWm::slotMenuItemActivated(int /* item */ )
diff --git a/kdesktop/lock/lockprocess.cc b/kdesktop/lock/lockprocess.cc
index a4a2badd3..3e818a145 100644
--- a/kdesktop/lock/lockprocess.cc
+++ b/kdesktop/lock/lockprocess.cc
@@ -1991,8 +1991,8 @@ int LockProcess::execDialog( TQDialog *dlg )
         else {
             bitBlt(this, 0, 0, &backingPixmap);
         }
+        saverReadyIfNeeded();
     }
-    saverReadyIfNeeded();
     // dlg->exec may generate BadMatch errors, so make sure they are silently ignored
     int (*oldHandler)(Display *, XErrorEvent *);
     oldHandler = XSetErrorHandler(ignoreXError);
@@ -2091,7 +2091,7 @@ void LockProcess::slotPaintBackground(const TQPixmap &rpm)
 		setGeometry(0, 0, mRootWidth, mRootHeight);
 		erase();
 	}
-	saverReadyIfNeeded();
+//	saverReadyIfNeeded();
 }
 
 void LockProcess::preparePopup()
diff --git a/kdesktop/lockeng.cc b/kdesktop/lockeng.cc
index 6ce26cf4e..27b57bc51 100644
--- a/kdesktop/lockeng.cc
+++ b/kdesktop/lockeng.cc
@@ -22,6 +22,8 @@
 #include <dcopclient.h>
 #include <assert.h>
 
+#include <dmctl.h>
+
 #include <dbus/dbus-shared.h>
 #include <tqdbusdata.h>
 #include <tqdbuserror.h>
@@ -79,6 +81,8 @@ SaverEngine::SaverEngine()
 	  mSAKProcess(NULL),
 	  mTerminationRequested(false),
 	  mSaverProcessReady(false),
+	  mNewVTAfterLockEngage(false),
+	  mSwitchVTAfterLockEngage(-1),
 	  dBusLocal(0),
 	  dBusWatch(0),
 	  systemdSession(0)
@@ -599,6 +603,15 @@ void SaverEngine::lockProcessFullyActivated()
 		params << TQT_DBusData::fromBool(true);
 		TQT_DBusMessage reply = systemdSession->sendWithReply("SetIdleHint", params);
 	}
+
+	if (mNewVTAfterLockEngage) {
+		DM().startReserve();
+		mNewVTAfterLockEngage = false;
+	}
+	else if (mSwitchVTAfterLockEngage != -1) {
+		DM().switchVT(mSwitchVTAfterLockEngage);
+		mSwitchVTAfterLockEngage = -1;
+	}
 }
 
 void SaverEngine::slotLockProcessReady()
@@ -854,6 +867,16 @@ bool SaverEngine::waitForLockEngage() {
 	return mLockProcess.isRunning();
 }
 
+void SaverEngine::lockScreenAndDoNewSession() {
+	mNewVTAfterLockEngage = true;
+	lockScreen();
+}
+
+void SaverEngine::lockScreenAndSwitchSession(int vt) {
+	mSwitchVTAfterLockEngage = vt;
+	lockScreen();
+}
+
 void SaverEngineThreadHelperObject::terminateThread() {
 	TQEventLoop* eventLoop = TQApplication::eventLoop();
 	if (eventLoop) {
diff --git a/kdesktop/lockeng.h b/kdesktop/lockeng.h
index 9827090b4..166d6b40e 100644
--- a/kdesktop/lockeng.h
+++ b/kdesktop/lockeng.h
@@ -106,6 +106,16 @@ public:
 	 */
 	bool waitForLockEngage();
 
+	/**
+	 * @internal
+	 */
+	void lockScreenAndDoNewSession();
+
+	/**
+	 * @internal
+	 */
+	void lockScreenAndSwitchSession(int vt);
+
 signals:
 	void terminateHelperThread();
 	void asyncLock();
@@ -175,6 +185,8 @@ private:
 	TDEProcess* mSAKProcess;
 	bool mTerminationRequested;
 	bool mSaverProcessReady;
+	bool mNewVTAfterLockEngage;
+	int mSwitchVTAfterLockEngage;
 	struct sigaction mSignalAction;
 	TQT_DBusConnection dBusConn;
 	TQT_DBusProxy* dBusLocal;