Part 2 of prior commit

1 files changed, 469 insertions, 0 deletions

diff --git a/tdm/kfrontend/kgapp.cpp b/tdm/kfrontend/kgapp.cpp
new file mode 100644
index 000000000..5ad52dda6
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+++ b/tdm/kfrontend/kgapp.cpp
@@ -0,0 +1,469 @@
+/*
+
+Greeter module for xdm
+
+Copyright (C) 1997, 1998 Steffen Hansen <hansen@kde.org>
+Copyright (C) 2000-2003 Oswald Buddenhagen <ossi@kde.org>
+
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+*/
+
+#include <config.h>
+
+#include "tdm_greet.h"
+#include "tdmshutdown.h"
+#include "tdmconfig.h"
+#include "kgapp.h"
+#include "kgreeter.h"
+#ifdef XDMCP
+# include "kchooser.h"
+#endif
+#include "sakdlg.h"
+
+#include <kprocess.h>
+#include <kcmdlineargs.h>
+#include <kcrash.h>
+#include <kstandarddirs.h>
+#include <ksimpleconfig.h>
+#include <klocale.h>
+#include <kdebug.h>
+#ifdef WITH_XRANDR
+#include <libkrandr/libkrandr.h>
+#endif
+
+#include <tqtimer.h>
+#include <tqstring.h>
+#include <tqcursor.h>
+#include <tqpalette.h>
+
+#include <stdlib.h> // free(), exit()
+#include <unistd.h> // alarm()
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/keysym.h>
+#include <X11/cursorfont.h>
+
+#ifdef HAVE_XCOMPOSITE
+#include <X11/extensions/Xrender.h>
+#include <X11/extensions/Xcomposite.h>
+#endif
+
+#include <pwd.h>
+
+bool argb_visual_available = false;
+bool has_twin = false;
+bool is_themed = false;
+bool trinity_desktop_lock_use_sak = TRUE;
+
+static int
+ignoreXError( Display *dpy ATTR_UNUSED, XErrorEvent *event ATTR_UNUSED )
+{
+        return 0;
+}
+
+extern "C" {
+
+static void
+sigAlarm( int )
+{
+	exit( EX_RESERVER_DPY );
+}
+
+}
+
+GreeterApp::GreeterApp()
+{
+	pingInterval = _isLocal ? 0 : _pingInterval;
+	if (pingInterval) {
+		struct sigaction sa;
+		sigemptyset( &sa.sa_mask );
+		sa.sa_flags = 0;
+		sa.sa_handler = sigAlarm;
+		sigaction( SIGALRM, &sa, 0 );
+		alarm( pingInterval * 70 ); // sic! give the "proper" pinger enough time
+		startTimer( pingInterval * 60000 );
+	}
+}
+
+GreeterApp::GreeterApp(Display *dpy, Qt::HANDLE visual, Qt::HANDLE colormap) : KApplication(dpy, visual, colormap)
+{
+	pingInterval = _isLocal ? 0 : _pingInterval;
+	if (pingInterval) {
+		struct sigaction sa;
+		sigemptyset( &sa.sa_mask );
+		sa.sa_flags = 0;
+		sa.sa_handler = sigAlarm;
+		sigaction( SIGALRM, &sa, 0 );
+		alarm( pingInterval * 70 ); // sic! give the "proper" pinger enough time
+		startTimer( pingInterval * 60000 );
+	}
+}
+
+void
+GreeterApp::timerEvent( TQTimerEvent * )
+{
+	alarm( 0 );
+	if (!PingServer( qt_xdisplay() ))
+		::exit( EX_RESERVER_DPY );
+	alarm( pingInterval * 70 ); // sic! give the "proper" pinger enough time
+}
+
+bool
+GreeterApp::x11EventFilter( XEvent * ev )
+{
+	KeySym sym;
+
+	switch (ev->type) {
+	case FocusIn:
+	case FocusOut:
+		// Hack to tell dialogs to take focus when the keyboard is grabbed
+		ev->xfocus.mode = NotifyNormal;
+		break;
+	case KeyPress:
+		sym = XLookupKeysym( &ev->xkey, 0 );
+		if (sym != XK_Return && !IsModifierKey( sym ))
+			emit activity();
+		break;
+	case ButtonPress:
+		emit activity();
+		/* fall through */
+	case ButtonRelease:
+		// Hack to let the RMB work as LMB
+		if (ev->xbutton.button == 3)
+			ev->xbutton.button = 1;
+		/* fall through */
+	case MotionNotify:
+		if (ev->xbutton.state & Button3Mask)
+			ev->xbutton.state = (ev->xbutton.state & ~Button3Mask) | Button1Mask;
+		break;
+	}
+	return false;
+}
+
+extern bool kde_have_kipc;
+
+extern "C" {
+
+static int
+xIOErr( Display * )
+{
+	exit( EX_RESERVER_DPY );
+}
+
+//KSimpleConfig *iccconfig;
+
+void
+checkSAK(GreeterApp* app)
+{
+	app->restoreOverrideCursor();
+	SAKDlg sak(0);
+	sak.exec();
+	app->setOverrideCursor( Qt::WaitCursor );
+}
+
+void
+kg_main( const char *argv0 )
+{
+	static char *argv[] = { (char *)"tdmgreet", 0 };
+	KCmdLineArgs::init( 1, argv, *argv, 0, 0, 0, true );
+
+	kdDebug() << timestamp() << "start" << endl;
+	kde_have_kipc = false;
+	KApplication::disableAutoDcopRegistration();
+	KCrash::setSafer( true );
+
+	KProcess *tsak = 0;
+	KProcess *proc = 0;
+	KProcess *comp = 0;
+	KProcess *twin = 0;
+
+	trinity_desktop_lock_use_sak = _useSAK;
+	if (trinity_desktop_lock_use_sak) {
+		tsak = new KProcess;
+		*tsak << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + "tsak";
+		tsak->start(KProcess::Block);
+	}
+	if (tsak) {
+		tsak->closeStdin();
+		tsak->detach();
+		delete tsak;
+	}
+
+#ifdef HAVE_XCOMPOSITE
+	// Begin ARGB initialization
+	XSetErrorHandler( ignoreXError );
+	argb_visual_available = false;
+	char *display = 0;
+
+	Display *dpyi = XOpenDisplay( display );
+	if ( !dpyi ) {
+		kdError() << "cannot connect to X server " << display << endl;
+		exit( 1 );
+	}
+
+	int screen = DefaultScreen( dpyi );
+	Colormap colormap = 0;
+	Visual *visual = 0;
+	int event_base, error_base;
+
+	if ( XRenderQueryExtension( dpyi, &event_base, &error_base ) ) {
+		int nvi;
+		XVisualInfo templ;
+		templ.screen  = screen;
+		templ.depth   = 32;
+		templ.c_class = TrueColor;
+		XVisualInfo *xvi = XGetVisualInfo( dpyi, VisualScreenMask | VisualDepthMask
+				| VisualClassMask, &templ, &nvi );
+
+		for ( int i = 0; i < nvi; i++ ) {
+			XRenderPictFormat *format = XRenderFindVisualFormat( dpyi, xvi[i].visual );
+			if ( format->type == PictTypeDirect && format->direct.alphaMask ) {
+				visual = xvi[i].visual;
+				colormap = XCreateColormap( dpyi, RootWindow( dpyi, screen ), visual, AllocNone );
+				kdDebug() << "found visual with alpha support" << endl;
+				argb_visual_available = true;
+				break;
+			}
+		}
+	}
+	XSetErrorHandler( (XErrorHandler)0 );
+
+	GreeterApp *app;
+	if ( (argb_visual_available == true) && (!_compositor.isEmpty()) ) {
+		app = new GreeterApp(dpyi, Qt::HANDLE( visual ), Qt::HANDLE( colormap ));
+	}
+	else {
+		app = new GreeterApp();
+	}
+	// End ARGB initialization
+#else
+	GreeterApp *app = new GreeterApp();
+#endif
+
+	XSetIOErrorHandler( xIOErr );
+	TQString login_user;
+
+	Display *dpy = qt_xdisplay();
+
+	if (!_GUIStyle.isEmpty())
+		app->setStyle( _GUIStyle );
+
+	// Load up systemwide display settings
+#ifdef WITH_XRANDR
+	KRandrSimpleAPI *randrsimple = new KRandrSimpleAPI();
+	TQPoint primaryScreenPosition = randrsimple->applySystemwideDisplayConfiguration("", KDE_CONFDIR);
+	delete randrsimple;
+#endif
+
+	// Load up the systemwide ICC profile
+	TQString iccConfigFile = TQString(KDE_CONFDIR);
+	iccConfigFile += "/kicc/kiccconfigrc";
+	KSimpleConfig iccconfig(iccConfigFile, true);
+	if (iccconfig.readBoolEntry("EnableICC", false) == true) {
+		TQString iccCommand = TQString("/usr/bin/xcalib ");
+		iccCommand += iccconfig.readEntry("ICCFile");
+		iccCommand += TQString(" &");
+		system(iccCommand.ascii());
+	}
+
+	_colorScheme = locate( "data", "kdisplay/color-schemes/" + _colorScheme + ".kcsrc" );
+	if (!_colorScheme.isEmpty()) {
+		KSimpleConfig config( _colorScheme, true );
+		config.setGroup( "Color Scheme" );
+		app->setPalette( app->createApplicationPalette( &config, 7 ) );
+	}
+
+	app->setFont( _normalFont );
+
+	setup_modifiers( dpy, _numLockStatus );
+	SecureDisplay( dpy );
+	if (!_grabServer) {
+		if (_useBackground) {
+			proc = new KProcess;
+			*proc << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + "krootimage";
+			*proc << _backgroundCfg;
+			proc->start();
+		}
+		GSendInt( G_SetupDpy );
+		GRecvInt();
+	}
+
+	if (!_compositor.isEmpty()) {
+		comp = new KProcess;
+		*comp << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + _compositor.ascii();
+		comp->start(KProcess::NotifyOnExit, KProcess::Stdin);
+	}
+
+	if (!_windowManager.isEmpty()) {
+		twin = new KProcess;
+		*twin << TQCString( argv0, strrchr( argv0, '/' ) - argv0 + 2 ) + _windowManager.ascii();
+		twin->start();
+		has_twin = true;
+	}
+
+	GSendInt( G_Ready );
+
+	kdDebug() << timestamp() << " main1" << endl;
+	setCursor( dpy, app->desktop()->winId(), XC_left_ptr );
+
+	for (;;) {
+		int rslt, cmd = GRecvInt();
+
+		if (cmd == G_ConfShutdown) {
+			int how = GRecvInt(), uid = GRecvInt();
+			char *os = GRecvStr();
+			TDMSlimShutdown::externShutdown( how, os, uid );
+			if (os)
+				free( os );
+			GSendInt( G_Ready );
+			_autoLoginDelay = 0;
+			continue;
+		}
+
+		if (cmd == G_ErrorGreet) {
+			if (KGVerify::handleFailVerify( TQT_TQWIDGET(tqApp->desktop()->screen( _greeterScreen )) ))
+				break;
+			_autoLoginDelay = 0;
+			cmd = G_Greet;
+		}
+
+		KProcess *proc2 = 0;
+		app->setOverrideCursor( Qt::WaitCursor );
+		FDialog *dialog = NULL;
+#ifdef XDMCP
+		if (cmd == G_Choose) {
+			dialog = new ChooserDlg;
+			GSendInt( G_Ready ); /* tell chooser to go into async mode */
+			GRecvInt(); /* ack */
+		} else
+#endif
+		{
+			if ((cmd != G_GreetTimed && !_autoLoginAgain) ||
+			    _autoLoginUser.isEmpty())
+				_autoLoginDelay = 0;
+			if (_useTheme && !_theme.isEmpty()) {
+				// 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 );
+				KThemedGreeter *tgrt;
+				bool has_twin_bkp = has_twin;
+				is_themed = true;
+				has_twin = false;	// [FIXME] The themed greeter is built on the assumption that there is no window manager available (i.e. it keeps stealing focus) and needs to be repaired.
+				dialog = tgrt = new KThemedGreeter;
+				kdDebug() << timestamp() << " themed" << endl;
+				if (!tgrt->isOK()) {
+					is_themed = false;
+					has_twin = has_twin_bkp;
+					delete tgrt;
+					checkSAK(app);
+					dialog = new KStdGreeter;
+#ifdef WITH_XRANDR
+					dialog->move(dialog->x() + primaryScreenPosition.x(), dialog->y() + primaryScreenPosition.y());
+#endif
+				}
+				else {
+#ifdef WITH_XRANDR
+					dialog->move(primaryScreenPosition.x(), primaryScreenPosition.y());
+#endif
+				}
+				XSetErrorHandler( (XErrorHandler)0 );
+			} else {
+				checkSAK(app);
+				dialog = new KStdGreeter;
+#ifdef WITH_XRANDR
+				dialog->move(dialog->x() + primaryScreenPosition.x(), dialog->y() + primaryScreenPosition.y());
+#endif
+			}
+			TQPoint oldCursorPos = TQCursor::pos();
+#ifdef WITH_XRANDR
+			TQCursor::setPos(oldCursorPos.x() + primaryScreenPosition.x(), oldCursorPos.y() + primaryScreenPosition.y());
+#endif
+			if (*_preloader) {
+				proc2 = new KProcess;
+				*proc2 << _preloader;
+				proc2->start();
+			}
+		}
+		app->restoreOverrideCursor();
+		Debug( "entering event loop\n" );
+		// 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 );
+		rslt = dialog->exec();
+		XSetErrorHandler( (XErrorHandler)0 );
+		Debug( "left event loop\n" );
+
+		login_user = static_cast<KGreeter*>(dialog)->curUser;
+
+		if (rslt != ex_greet) {
+			delete dialog;
+		}
+		delete proc2;
+#ifdef XDMCP
+		switch (rslt) {
+		case ex_greet:
+			GSendInt( G_DGreet );
+			continue;
+		case ex_choose:
+			GSendInt( G_DChoose );
+			continue;
+		default:
+			break;
+		}
+#endif
+		break;
+	}
+
+	KGVerify::done();
+
+	if (comp) {
+		if (_compositor == "kompmgr") {
+			// Change process UID
+			// Get user UID
+			passwd* userinfo = getpwnam(login_user.ascii());
+			if (userinfo) {
+				TQString newuid = TQString("%1").arg(userinfo->pw_uid);
+				// kompmgr allows us to change its uid in this manner:
+				// 1.) Send SIGUSER1
+				// 2.) Send the new UID to it on the command line
+				comp->kill(SIGUSR1);
+				comp->writeStdin(newuid.ascii(), newuid.length());
+				usleep(50000);	// Give the above function some time to execute.  Note that on REALLY slow systems this could fail, leaving kompmgr running as root.  TODO: Look into ways to make this more robust.
+			}
+		}
+		comp->closeStdin();
+		comp->detach();
+		delete comp;
+	}
+	if (twin) {
+		twin->closeStdin();
+		twin->detach();
+		delete twin;
+	}
+	delete proc;
+	UnsecureDisplay( dpy );
+	restore_modifiers();
+
+	XSetInputFocus( qt_xdisplay(), PointerRoot, PointerRoot, CurrentTime );
+
+	delete app;
+}
+
+} // extern "C"
+
+#include "kgapp.moc"