summaryrefslogtreecommitdiffstats
path: root/tdeprint/kmfactory.cpp
blob: 8daa2fe20c101f250cb72d5cf9a2f0b0382a42b8 (plain)
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
/*
 *  This file is part of the KDE libraries
 *  Copyright (c) 2001 Michael Goffioul <tdeprint@swing.be>
 *
 *  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 "kmfactory.h"
#include "kmmanager.h"
#include "kmjobmanager.h"
#include "kmuimanager.h"
#include "kprinterimpl.h"
#include "kprinter.h"
#include "kpreloadobject.h"
#include "tdeprintcheck.h"
#include "kxmlcommand.h"

#include <tqdir.h>
#include <tqfile.h>
#include <tqsettings.h>

#include <klibloader.h>
#include <kconfig.h>
#include <kstandarddirs.h>
#include <kiconloader.h>
#include <kdebug.h>
#include <kmessagebox.h>
#include <klocale.h>
#include <ksimpleconfig.h>
#include <kstaticdeleter.h>
#include <kapplication.h>
#include <dcopclient.h>
#include <dcopref.h>
#include <kio/authinfo.h>

#include <unistd.h>

#define	UNLOAD_OBJECT(x) if (x != 0) { delete x; x = 0; }

#ifdef Q_WS_X11
extern void tqt_generate_epsf( bool b );
#endif

KMFactory* KMFactory::m_self = 0;
static KStaticDeleter<KMFactory> s_kmfactorysd;

KMFactory* KMFactory::self()
{
	if (!m_self)
		m_self = s_kmfactorysd.setObject(m_self, new KMFactory());
	return m_self;
}

bool KMFactory::exists()
{
    return m_self != 0L;
}

void KMFactory::release()
{
	if (m_self)
	{
		KMFactory* p = m_self;
		m_self = 0; // so that exists() says false
		delete p;
	}
}

KMFactory::KMFactory()
	: TQObject(NULL, "Factory")
{
	m_settings = new Settings;
	m_settings->application = KPrinter::Dialog;
	m_settings->pageSelection = KPrinter::SystemSide;
	m_settings->standardDialogPages = KPrinter::CopiesPage;
	m_settings->pageSize = -1;
	m_settings->orientation = -1;

	m_objects.setAutoDelete(false);

	m_manager = 0;
	m_jobmanager = 0;
	m_uimanager = 0;
	m_implementation = 0;
	m_factory = 0;
	m_printconfig = 0;
#if TQT_VERSION >= 230
	// Qt's default behavior, to generate EPS in some cases and not in others, sucks.
	// This is fixed in Qt 3.0, but for Qt 2.x we need to disable it explicitly.
	// If this is a problem for anyone, we can add a public method to set this flag.
	// (David Faure, doing as advised by Lars Knoll)
#ifdef Q_WS_X11
	tqt_generate_epsf( false );
#endif
#endif

	// By default, embed PS fonts
	bool ok = false;
	TQSettings settings;
	settings.readBoolEntry( "/qt/embedFonts", true, &ok );
	if ( !ok )
		settings.writeEntry( "/qt/embedFonts", true );

	KGlobal::iconLoader()->addAppDir("tdeprint");
        KGlobal::locale()->insertCatalogue("tdeprint");

	// create DCOP signal connection
	connectDCOPSignal(0, 0, "pluginChanged(pid_t)", "slot_pluginChanged(pid_t)", false);
	connectDCOPSignal(0, 0, "configChanged()", "slot_configChanged()", false);
}

KMFactory::~KMFactory()
{
	delete m_settings;
	// The only object to be destroyed is m_printconfig. All other objects have been
	// created with "this" as parent, so we don't need to care about their destruction
	UNLOAD_OBJECT(m_printconfig);
	m_self = 0;
}

KMManager* KMFactory::manager()
{
	if (!m_manager)
		createManager();
	TQ_CHECK_PTR(m_manager);
	return m_manager;
}

KMJobManager* KMFactory::jobManager()
{
	if (!m_jobmanager)
		createJobManager();
	TQ_CHECK_PTR(m_jobmanager);
	return m_jobmanager;
}

KMUiManager* KMFactory::uiManager()
{
	if (!m_uimanager)
		createUiManager();
	TQ_CHECK_PTR(m_uimanager);
	return m_uimanager;
}

KPrinterImpl* KMFactory::printerImplementation()
{
	if (!m_implementation)
		createPrinterImpl();
	TQ_CHECK_PTR(m_implementation);
	return m_implementation;
}

KMVirtualManager* KMFactory::virtualManager()
{
	return manager()->m_virtualmgr;
}

KMSpecialManager* KMFactory::specialManager()
{
	return manager()->m_specialmgr;
}

KXmlCommandManager* KMFactory::commandManager()
{
	return KXmlCommandManager::self();
}

void KMFactory::createManager()
{
	loadFactory();
	if (m_factory) m_manager = (KMManager*)m_factory->create(this,"Manager","KMManager");
	if (!m_manager) m_manager = new KMManager(this,"Manager");
}

void KMFactory::createJobManager()
{
	loadFactory();
	if (m_factory) m_jobmanager = (KMJobManager*)m_factory->create(this,"JobManager","KMJobManager");
	if (!m_jobmanager) m_jobmanager = new KMJobManager(this,"JobManager");
}

void KMFactory::createUiManager()
{
	loadFactory();
	if (m_factory) m_uimanager = (KMUiManager*)m_factory->create(this,"UiManager","KMUiManager");
	if (!m_uimanager) m_uimanager = new KMUiManager(this,"UiManager");
}

void KMFactory::createPrinterImpl()
{
	loadFactory();
	if (m_factory) m_implementation = (KPrinterImpl*)m_factory->create(this,"PrinterImpl","KPrinterImpl");
	if (!m_implementation) m_implementation = new KPrinterImpl(this,"PrinterImpl");
}

void KMFactory::loadFactory(const TQString& syst)
{
	if (!m_factory)
	{
		TQString	sys(syst);
		if (sys.isEmpty())
			// load default configured print plugin
			sys = printSystem();
		TQString	libname = TQString::fromLatin1("tdeprint_%1").arg(sys);
		m_factory = KLibLoader::self()->factory(TQFile::encodeName(libname));
                if (!m_factory)
                {
                        KMessageBox::error(0,
                            i18n("<qt>There was an error loading %1. The diagnostic is:<p>%2</p></qt>")
                            .arg(libname).arg(KLibLoader::self()->lastErrorMessage()));
                }
	}
}

KConfig* KMFactory::printConfig(const TQString& group)
{
	if (!m_printconfig)
	{
		m_printconfig = new KConfig("tdeprintrc");
		TQ_CHECK_PTR(m_printconfig);
	}
	if (!group.isEmpty())
		m_printconfig->setGroup(group);
	return m_printconfig;
}

TQString KMFactory::printSystem()
{
	KConfig	*conf = printConfig();
	conf->setGroup("General");
	TQString	sys = conf->readEntry("PrintSystem");
	if (sys.isEmpty())
	{
		// perform auto-detection (will at least return "lpdunix")
		sys = autoDetect();
		// save the result
		conf->writeEntry("PrintSystem", sys);
		conf->sync();
	}
	else if ( sys.length()==1 && sys[0].isDigit() ) // discard old-style settings
        	sys = "lpdunix";
	return sys;
}

void KMFactory::unload()
{
	UNLOAD_OBJECT(m_manager);
	UNLOAD_OBJECT(m_jobmanager);
	UNLOAD_OBJECT(m_uimanager);
	UNLOAD_OBJECT(m_implementation);
	// factory will be automatically unloaded by KLibLoader as all object have been deleted.
	// But to have loadFactory() to work, we need to set m_factory to NULL.
	m_factory = 0;
}

void KMFactory::reload(const TQString& syst, bool saveSyst)
{
	// notify all registered objects about the coming reload
	TQPtrListIterator<KPReloadObject>	it(m_objects);
	for (;it.current();++it)
		it.current()->aboutToReload();

	// unload all objects from the plugin
	unload();
	if (saveSyst)
	{
		KConfig	*conf = printConfig();
		conf->setGroup("General");
		conf->writeEntry("PrintSystem", syst);
		conf->sync();

		// notify all other apps using DCOP signal
		emit pluginChanged(getpid());
	}

	// reload the factory
	loadFactory(syst);

	// notify all registered objects
	for (it.toFirst();it.current();++it)
		it.current()->reload();
}

TQValueList<KMFactory::PluginInfo> KMFactory::pluginList()
{
	TQDir	d(locate("data", "tdeprint/plugins/"), "*.print", TQDir::Name, TQDir::Files);
	TQValueList<PluginInfo>	list;
	for (uint i=0; i<d.count(); i++)
	{
		PluginInfo	info(pluginInfo(d.absFilePath(d[i])));
		if (info.name.isEmpty())
			continue;
		list.append(info);
	}
	return list;
}

KMFactory::PluginInfo KMFactory::pluginInfo(const TQString& name)
{
	TQString	path(name);
	if (path[0] != '/')
		path = locate("data", TQString::fromLatin1("tdeprint/plugins/%1.print").arg(name));
	KSimpleConfig	conf(path);
	PluginInfo	info;

	conf.setGroup("TDE Print Entry");
	info.name = conf.readEntry("PrintSystem");
	info.comment = conf.readEntry("Comment");
	if (info.comment.isEmpty())
		info.comment = info.name;
	info.detectUris = conf.readListEntry("DetectUris");
	info.detectPrecedence = conf.readNumEntry("DetectPrecedence", 0);
	info.mimeTypes = conf.readListEntry("MimeTypes");
	if (info.mimeTypes.isEmpty())
		info.mimeTypes << "application/postscript";
	info.primaryMimeType = conf.readEntry("PrimaryMimeType", info.mimeTypes[0]);

	return info;
}

void KMFactory::registerObject(KPReloadObject *obj, bool priority)
{
	// check if object already registered, then add it
	if (m_objects.findRef(obj) == -1)
	{
		if (priority)
			m_objects.prepend(obj);
		else
			m_objects.append(obj);
		kdDebug(500) << "tdeprint: registering " << (void*)obj << ", number of objects = " << m_objects.count() << endl;
	}
}

void KMFactory::unregisterObject(KPReloadObject *obj)
{
	// remove object from list (not deleted as autoDelete is false)
	m_objects.removeRef(obj);
	kdDebug(500) << "tdeprint: unregistering " << (void*)obj << ", number of objects = " << m_objects.count() << endl;
}

TQString KMFactory::autoDetect()
{
	TQValueList<PluginInfo>	plugins = pluginList();
	int	pluginIndex(-1), currentPrecedence(0);
	for (uint i=0;i<plugins.count();i++)
	{
		if (plugins[i].detectUris.count() > 0 && KdeprintChecker::check(plugins[i].detectUris)
		    && (pluginIndex == -1 || plugins[i].detectPrecedence >= currentPrecedence))
		{
			pluginIndex = i;
			currentPrecedence = plugins[i].detectPrecedence;
		}
	}
	return (pluginIndex == -1 ? TQString::fromLatin1("lpdunix") : plugins[pluginIndex].name);
}

void KMFactory::slot_pluginChanged(pid_t pid)
{
	// only do something if the notification comes from another process
	if (pid != getpid())
	{
		// Unload config object (avoid saving it)
		printConfig()->rollback();
		UNLOAD_OBJECT(m_printconfig);
		// Then reload everything and notified registered objects.
		// Do NOT re-save the new print system.
		TQString	syst = printSystem();
		reload(syst, false);
	}
}

void KMFactory::slot_configChanged()
{
	kdDebug(500) << "KMFactory (" << getpid() << ") receiving DCOP signal configChanged()" << endl;
	// unload/reload config object (make it non dirty to
	// avoid saving it and overwriting the newly saved options
	// in the other application)
	printConfig()->rollback();
	UNLOAD_OBJECT(m_printconfig);
	printConfig();

	// notify all registered objects about the coming reload
	TQPtrListIterator<KPReloadObject>	it(m_objects);
	/*for (;it.current();++it)
		it.current()->aboutToReload();*/

	// notify all object about the change
	for (it.toFirst(); it.current();++it)
		it.current()->configChanged();
}

void KMFactory::saveConfig()
{
	KConfig	*conf = printConfig();
	conf->sync();
	kdDebug(500) << "KMFactory (" << getpid() << ") emitting DCOP signal configChanged()" << endl;
	emit configChanged();
	// normally, the self application should also receive the signal,
	// anyway the config object has been updated "locally", so ne real
	// need to reload the config file.
}

TQPair<TQString,TQString> KMFactory::requestPassword( int& seqNbr, const TQString& user, const TQString& host, int port )
{
	DCOPRef tdeprintd( "kded", "tdeprintd" );
	/**
	 * We do not use an internal event loop for 2 potential problems:
	 *  - the MessageWindow modality (appearing afterwards, it pops up on top
	 *    of the password dialog)
	 *  - KMTimer should be stopped, but it's unavailable from this object
	 */
	DCOPReply reply = tdeprintd.call( "requestPassword", user, host, port, seqNbr );
	if ( reply.isValid() )
	{
		TQString replyString = reply;
		if ( replyString != "::" )
		{
			TQStringList l = TQStringList::split( ':', replyString, true );
			if ( l.count() == 3 )
			{
				seqNbr = l[ 2 ].toInt();
				return TQPair<TQString,TQString>( l[ 0 ], l[ 1 ] );
			}
		}
	}
	return TQPair<TQString,TQString>( TQString::null, TQString::null );
}

void KMFactory::initPassword( const TQString& user, const TQString& password, const TQString& host, int port )
{
	DCOPRef tdeprintd( "kded", "tdeprintd" );
	/**
	 * We do not use an internal event loop for 2 potential problems:
	 *  - the MessageWindow modality (appearing afterwards, it pops up on top
	 *    of the password dialog)
	 *  - KMTimer should be stopped, but it's unavailable from this object
	 */
	tdeprintd.call( "initPassword", user, password, host, port );
}

#include "kmfactory.moc"