1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
|
/* This file is part of the KDE project
Copyright (C) 2004 Frans Englich <[email protected]>
Copyright (C) 2003 Matthias Kretz <[email protected]>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License version 2 as published by the Free Software Foundation.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <tqapplication.h>
#include <tqcursor.h>
#include <tqdatastream.h>
#include <tqevent.h>
#include <tqfileinfo.h>
#include <tqframe.h>
#include <tqlabel.h>
#include <tqlayout.h>
#include <tqpoint.h>
#include <tqscrollview.h>
#include <tqtextstream.h>
#include <tqvbox.h>
#include <tqwhatsthis.h>
#include <tqwidget.h>
#include <dcopclient.h>
#include <qxembed.h>
#include <tdeapplication.h>
#include <tdeaboutdata.h>
#include <tdecmodule.h>
#include <tdecmoduleinfo.h>
#include <tdecmoduleloader.h>
#include <kdebug.h>
#include <kdialog.h>
#include <tdelocale.h>
#include <kprocess.h>
#include <kservice.h>
#include <kstandarddirs.h>
#include <kuser.h>
#include <X11/Xlib.h>
#include "tdecmoduleproxy.h"
#include "tdecmoduleproxyIface.h"
#include "tdecmoduleproxyIfaceImpl.h"
/***************************************************************/
class TDECModuleProxy::TDECModuleProxyPrivate
{
public:
TDECModuleProxyPrivate( const TDECModuleInfo & info )
: args( 0 )
, kcm( 0 )
//, view( 0 )
, embedWidget( 0 )
, rootProcess ( 0 )
, embedFrame ( 0 )
, dcopObject( 0 )
, dcopClient( 0 )
, topLayout( 0 )
, rootCommunicator( 0 )
, rootInfo( 0 )
, modInfo( info )
, withFallback( false )
, changed( false )
, rootMode( false )
, bogusOccupier( false )
, isInitialized( false )
{}
~TDECModuleProxyPrivate()
{
delete rootInfo; // Delete before embedWidget!
delete embedWidget; // Delete before embedFrame!
delete embedFrame;
delete dcopClient;
delete dcopObject;
delete rootCommunicator;
delete rootProcess;
delete kcm;
}
TQStringList args;
TDECModule *kcm;
QXEmbed *embedWidget;
TDEProcess *rootProcess;
TQVBox *embedFrame;
TDECModuleProxyIfaceImpl *dcopObject;
DCOPClient *dcopClient;
TQVBoxLayout *topLayout; /* Contains TQScrollView view, and root stuff */
TDECModuleProxyRootCommunicatorImpl *rootCommunicator;
TQLabel *rootInfo;
TQCString dcopName;
TDECModuleInfo modInfo;
bool withFallback;
bool changed;
bool rootMode;
bool bogusOccupier;
bool isInitialized;
};
/***************************************************************/
/*
TODO:
- How TDECModuleProxy behaves wrt memory leaks and behavior, when exiting
from root mode is not tested, because no code make use of it. It needs
work, if it should be used.
- Should write a document which outlines test cases, to avoid
regressions. This class is a hazard.
- Two Layout problems in runAsRoot:
* lblBusy doesn't show
* d->kcm/d->rootInfo doesn't get it right when the user
presses cancel in the tdesu dialog
- Resizing horizontally is contrained; minimum size is set somewhere.
It appears to be somehow derived from the module's size.
- Prettify: set icon in KCMultiDialog.
- Perhaps it's possible to link against tdesu such that
the dialog is in process?
*/
/***************************************************************/
TDECModule * TDECModuleProxy::realModule() const
{
/*
* Note, don't call any function that calls realModule() since
* that leads to an infinite loop.
*/
kdDebug(711) << k_funcinfo << endl;
/* Already loaded */
if( d->kcm )
return d->kcm;
/* /We/ have no kcm, but tdecmshell running with root prevs does.. */
if( d->rootMode )
return 0;
TQApplication::setOverrideCursor( TQt::WaitCursor );
TDECModuleProxy * that = const_cast<TDECModuleProxy*>( this );
if( !d->isInitialized )
{
d->dcopName = TQString(moduleInfo().handle().prepend("TDECModuleProxy-")).utf8();
d->topLayout = new TQVBoxLayout( that, 0, 0, "topLayout" );
d->isInitialized = true;
}
if( !d->dcopClient )
d->dcopClient = new DCOPClient();
if( !d->dcopClient->isRegistered() )
d->dcopClient->registerAs( d->dcopName, false );
d->dcopClient->setAcceptCalls( true );
if( d->dcopClient->appId() == d->dcopName || d->bogusOccupier )
{ /* We got the name we requested, because no one was before us,
* or, it was an random application which had picked that name */
kdDebug(711) << "Module not already loaded, loading module" << endl;
d->dcopObject = new TDECModuleProxyIfaceImpl( d->dcopName, that );
d->kcm = TDECModuleLoader::loadModule( moduleInfo(), TDECModuleLoader::Inline, d->withFallback,
that, name(), d->args );
connect( d->kcm, TQT_SIGNAL( changed( bool ) ),
TQT_SLOT(moduleChanged(bool)) );
connect( d->kcm, TQT_SIGNAL( destroyed() ),
TQT_SLOT( moduleDestroyed() ) );
connect( d->kcm, TQT_SIGNAL(quickHelpChanged()),
TQT_SIGNAL(quickHelpChanged()));
TQWhatsThis::add( that, d->kcm->quickHelp() );
d->topLayout->addWidget( d->kcm );
if ( !d->rootInfo && /* If the message was not yet created */
d->kcm->useRootOnlyMsg() /* and the module requests the message */ &&
moduleInfo().needsRootPrivileges() /* and the module wants root access */ &&
!KUser().isSuperUser() ) /* and we are not currently root */
{
d->rootInfo = new TQLabel( that, "rootInfo" );
d->topLayout->insertWidget( 0, d->rootInfo );
d->rootInfo->setFrameShape(TQFrame::Box);
d->rootInfo->setFrameShadow(TQFrame::Raised);
const TQString msg = d->kcm->rootOnlyMsg();
if( msg.isEmpty() )
d->rootInfo->setText(i18n(
"<b>Changes in this section requires root access.</b><br />"
"Click the \"Administrator Mode\" button to "
"allow modifications."));
else
d->rootInfo->setText(msg);
TQWhatsThis::add( d->rootInfo, i18n(
"This section requires special permissions, probably "
"for system-wide changes; therefore, it is "
"required that you provide the root password to be "
"able to change the module's properties. If "
"you do not provide the password, the module will be "
"disabled."));
}
}
else
{
kdDebug(711) << "Module already loaded, loading KCMError" << endl;
d->dcopClient->detach();
/* Re-register as anonymous */
d->dcopClient->attach();
d->dcopClient->setNotifications( true );
connect( d->dcopClient, TQT_SIGNAL( applicationRemoved( const TQCString& )),
TQT_SLOT( applicationRemoved( const TQCString& )));
/* Figure out the name of where the module is already loaded */
TQByteArray replyData, data;
TQCString replyType;
TQString result;
TQDataStream arg, stream( replyData, IO_ReadOnly );
if( d->dcopClient->call( d->dcopName, d->dcopName, "applicationName()",
data, replyType, replyData ))
{
stream >> result;
d->kcm = TDECModuleLoader::reportError( TDECModuleLoader::Inline,
i18n( "Argument is application name", "This configuration section is "
"already opened in %1" ).arg( result ), " ", that );
d->topLayout->addWidget( d->kcm );
}
else
{
kdDebug(711) << "Calling TDECModuleProxy's DCOP interface for fetching the name failed." << endl;
d->bogusOccupier = true;
TQApplication::restoreOverrideCursor();
return realModule();
}
}
TQApplication::restoreOverrideCursor();
return d->kcm;
}
void TDECModuleProxy::applicationRemoved( const TQCString& app )
{
if( app == d->dcopName )
{
/* Violence: Get rid of KCMError & CO, so that
* realModule() attempts to reload the module */
delete d->kcm;
d->kcm = 0;
d->dcopClient->setNotifications( false );
realModule();
d->kcm->show();
}
}
void TDECModuleProxy::showEvent( TQShowEvent * ev )
{
kdDebug(711) << k_funcinfo << endl;
( void )realModule();
/* We have no kcm, if we're in root mode */
if( d->kcm )
d->kcm->show();
TQWidget::showEvent( ev );
}
void TDECModuleProxy::runAsRoot()
{
if ( !moduleInfo().needsRootPrivileges() )
return;
TQApplication::setOverrideCursor( TQt::WaitCursor );
delete d->rootProcess;
delete d->embedWidget;
delete d->embedFrame;
d->embedFrame = new TQVBox( this, "embedFrame" );
d->embedFrame->setFrameStyle( TQFrame::Box | TQFrame::Raised );
TQPalette pal( red );
pal.setColor( TQColorGroup::Background,
colorGroup().background() );
d->embedFrame->setPalette( pal );
d->embedFrame->setLineWidth( 2 );
d->embedFrame->setMidLineWidth( 2 );
d->topLayout->addWidget(d->embedFrame,1);
d->embedWidget = new QXEmbed( d->embedFrame, "embedWidget" );
d->embedFrame->show();
TQLabel *lblBusy = new TQLabel(i18n("<big>Loading...</big>"), d->embedWidget, "lblBusy" );
lblBusy->setTextFormat(RichText);
lblBusy->setAlignment(AlignCenter);
lblBusy->setGeometry(0,0, d->kcm->width(), d->kcm->height());
lblBusy->show();
deleteClient();
/* The DCOP registration is now gone, and it will occur again when tdecmshell soon
* registers. Here's a race condition in other words, but how likely is that?
*
* - It's a user initiated action, which means the user have to do weird stuff, very
* quick.
* - If the user _do_ manage to fsck up, the code will recover gracefully, see realModule().
*
* So no worry. At the end of this function, communication with
* the DCOP object is established.
*/
/* Prepare the process to run the tdecmshell */
TQString cmd = moduleInfo().service()->exec().stripWhiteSpace();
if (cmd.left(5) == "tdesu")
{
cmd = TQString(cmd.remove(0,5)).stripWhiteSpace();
/* Remove all tdesu switches */
while( cmd.length() > 1 && cmd[ 0 ] == '-' )
cmd = TQString(cmd.remove( 0, cmd.find( ' ' ) )).stripWhiteSpace();
}
if (cmd.left(8) == "tdecmshell")
cmd = TQString(cmd.remove(0,8)).stripWhiteSpace();
/* Run the process */
TQString tdesu = TDEStandardDirs::findExe("tdesu");
if (!tdesu.isEmpty())
{
d->rootProcess = new TDEProcess;
*d->rootProcess << tdesu;
*d->rootProcess << "--nonewdcop" << "-n" << "-d" << TQString( "-i%1" ).arg(moduleInfo().icon());
*d->rootProcess << TQString("%1 %2 --embed-proxy %3 --lang %4").arg(locate("exe", "tdecmshell"))
.arg(cmd).arg(d->embedWidget->winId()).arg(TDEGlobal::locale()->language());
connect(d->rootProcess, TQT_SIGNAL(processExited(TDEProcess*)), TQT_SLOT(rootExited()));
if ( !d->rootProcess->start( TDEProcess::NotifyOnExit ))
{
d->rootMode = false;
rootExited();
}
else
{
d->rootMode = true;
kapp->dcopClient();
d->rootCommunicator = new TDECModuleProxyRootCommunicatorImpl( d->dcopName + "-RootCommunicator", this );
}
delete lblBusy;
TQApplication::restoreOverrideCursor();
return;
}
/* Clean up in case of failure */
delete d->embedWidget;
d->embedWidget = 0;
delete d->embedFrame;
d->embedFrame = 0;
TQApplication::restoreOverrideCursor();
}
void TDECModuleProxy::rootExited()
{
kdDebug(711) << k_funcinfo << endl;
if ( d->embedWidget->embeddedWinId() )
XDestroyWindow(tqt_xdisplay(), d->embedWidget->embeddedWinId());
delete d->embedWidget;
d->embedWidget = 0;
delete d->rootProcess;
d->rootProcess = 0;
delete d->embedFrame;
d->embedFrame=0;
delete d->rootCommunicator;
d->rootCommunicator = 0;
/* Such that the "ordinary" module loads again */
d->rootMode = false;
d->topLayout->invalidate();
TQShowEvent ev;
showEvent( &ev );
moduleChanged( false );
emit childClosed();
}
TDECModuleProxy::~TDECModuleProxy()
{
deleteClient();
TDECModuleLoader::unloadModule(moduleInfo());
delete d;
}
void TDECModuleProxy::deleteClient()
{
if( d->embedWidget )
XKillClient(tqt_xdisplay(), d->embedWidget->embeddedWinId());
delete d->kcm;
d->kcm = 0;
delete d->dcopObject;
d->dcopObject = 0;
if( d->dcopClient && !d->dcopClient->detach() )
kdDebug(711) << "Unregistering from DCOP failed." << endl;
delete d->dcopClient;
d->dcopClient = 0;
kapp->syncX();
}
void TDECModuleProxy::moduleChanged( bool c )
{
if( d->changed == c )
return;
d->changed = c;
emit changed( c );
emit changed( this );
}
void TDECModuleProxy::moduleDestroyed()
{
d->kcm = 0;
}
TDECModuleProxy::TDECModuleProxy( const KService::Ptr & service, bool withFallback,
TQWidget * parent, const char * name, const TQStringList & args)
: TQWidget( parent, name )
{
init( TDECModuleInfo( service ));
d->args = args;
d->withFallback = withFallback;
}
TDECModuleProxy::TDECModuleProxy( const TDECModuleInfo & info, bool withFallback,
TQWidget * parent, const char * name, const TQStringList & args )
: TQWidget( parent, name )
{
init( info );
d->args = args;
d->withFallback = withFallback;
}
TDECModuleProxy::TDECModuleProxy( const TQString& serviceName, bool withFallback,
TQWidget * parent, const char * name,
const TQStringList & args)
: TQWidget( parent, name )
{
init( TDECModuleInfo( serviceName ));
d->args = args;
d->withFallback = withFallback;
}
void TDECModuleProxy::init( const TDECModuleInfo& info )
{
kdDebug(711) << k_funcinfo << endl;
d = new TDECModuleProxyPrivate( info );
/* This is all we do for now; all the heavy work is
* done in realModule(). It's called when the module
* _actually_ is needed, in for example showEvent().
* The module is loaded "on demand" -- lazy loading.
*/
}
void TDECModuleProxy::load()
{
if( d->rootMode )
callRootModule( "load()" );
else if( realModule() )
{
d->kcm->load();
moduleChanged( false );
}
}
void TDECModuleProxy::save()
{
if( d->rootMode )
callRootModule( "save()" );
else if( d->changed && realModule() )
{
d->kcm->save();
moduleChanged( false );
}
}
void TDECModuleProxy::callRootModule( const TQCString& function )
{
TQByteArray sendData, replyData;
TQCString replyType;
/* Note, we don't use d->dcopClient here, because it's used for
* the loaded module(and it's not "us" when this function is called) */
if( !kapp->dcopClient()->call( d->dcopName, d->dcopName, function, sendData,
replyType, replyData, true, -1 ))
kdDebug(711) << "Calling function '" << function << "' failed." << endl;
}
void TDECModuleProxy::defaults()
{
if( d->rootMode )
callRootModule( "defaults()" );
if( realModule() )
d->kcm->defaults();
}
TQString TDECModuleProxy::quickHelp() const
{
if( !d->rootMode )
return realModule() ? realModule()->quickHelp() : TQString::null;
else
{
TQByteArray data, replyData;
TQCString replyType;
if (kapp->dcopClient()->call(d->dcopName, d->dcopName, "quickHelp()",
data, replyType, replyData))
kdDebug(711) << "Calling DCOP function bool changed() failed." << endl;
else
{
TQDataStream reply(replyData, IO_ReadOnly);
if (replyType == "TQString")
{
TQString result;
reply >> result;
return result;
}
else
kdDebug(711) << "DCOP function changed() returned mumbo jumbo." << endl;
}
return TQString::null;
}
}
const TDEAboutData * TDECModuleProxy::aboutData() const
{
if( !d->rootMode ) {
return realModule() ? realModule()->aboutData() : 0;
}
else {
/* This needs fixing, perhaps cache a TDEAboutData copy
* while in root mode? */
return 0;
}
}
TQString TDECModuleProxy::handbookDocPath() const
{
if( !d->rootMode ) {
return realModule() ? realModule()->handbookDocPath() : TQString::null;
}
else {
/* This needs fixing, perhaps cache a handbookSection() copy
* while in root mode? */
return TQString::null;
}
}
TQString TDECModuleProxy::handbookSection() const
{
if( !d->rootMode ) {
return realModule() ? realModule()->handbookSection() : TQString::null;
}
else {
/* This needs fixing, perhaps cache a handbookSection() copy
* while in root mode? */
return TQString::null;
}
}
int TDECModuleProxy::buttons() const
{
return realModule() ? realModule()->buttons() :
TDECModule::Help | TDECModule::Default | TDECModule::Apply ;
}
TQString TDECModuleProxy::rootOnlyMsg() const
{
return realModule() ? realModule()->rootOnlyMsg() : TQString::null;
}
bool TDECModuleProxy::useRootOnlyMsg() const
{
return realModule() ? realModule()->useRootOnlyMsg() : true;
}
TDEInstance * TDECModuleProxy::instance() const
{
return realModule() ? realModule()->instance() : 0;
}
bool TDECModuleProxy::changed() const
{
return d->changed;
}
const TDECModuleInfo& TDECModuleProxy::moduleInfo() const
{
return d->modInfo;
}
bool TDECModuleProxy::rootMode() const
{
return d->rootMode;
}
TQCString TDECModuleProxy::dcopName() const
{
return d->dcopName;
}
void TDECModuleProxy::emitQuickHelpChanged()
{
emit quickHelpChanged();
}
/***************************************************************/
#include "tdecmoduleproxy.moc"
|