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00021 #include <kparts/part.h>
00022 #include <kparts/event.h>
00023 #include <kparts/plugin.h>
00024 #include <kparts/mainwindow.h>
00025 #include <kparts/partmanager.h>
00026
00027 #include <qapplication.h>
00028 #include <qfile.h>
00029 #include <qpoint.h>
00030 #include <qpointarray.h>
00031 #include <qpainter.h>
00032 #include <qtextstream.h>
00033 #include <qfileinfo.h>
00034
00035 #include <kinstance.h>
00036 #include <klocale.h>
00037 #include <ktempfile.h>
00038 #include <kmessagebox.h>
00039 #include <kio/job.h>
00040 #include <kstandarddirs.h>
00041 #include <kfiledialog.h>
00042 #include <kdirnotify_stub.h>
00043
00044 #include <stdio.h>
00045 #include <unistd.h>
00046 #include <assert.h>
00047 #include <kdebug.h>
00048
00049 template class QPtrList<KXMLGUIClient>;
00050
00051 using namespace KParts;
00052
00053 namespace KParts
00054 {
00055
00056 class PartBasePrivate
00057 {
00058 public:
00059 PartBasePrivate()
00060 {
00061 m_pluginLoadingMode = PartBase::LoadPlugins;
00062 }
00063 ~PartBasePrivate()
00064 {
00065 }
00066 PartBase::PluginLoadingMode m_pluginLoadingMode;
00067 };
00068
00069 class PartPrivate
00070 {
00071 public:
00072 PartPrivate()
00073 {
00074 m_bSelectable = true;
00075 }
00076 ~PartPrivate()
00077 {
00078 }
00079
00080 bool m_bSelectable;
00081 };
00082 }
00083
00084 PartBase::PartBase()
00085 {
00086 d = new PartBasePrivate;
00087 m_obj = 0L;
00088 }
00089
00090 PartBase::~PartBase()
00091 {
00092 delete d;
00093 }
00094
00095 void PartBase::setPartObject( QObject *obj )
00096 {
00097 m_obj = obj;
00098 }
00099
00100 QObject *PartBase::partObject() const
00101 {
00102 return m_obj;
00103 }
00104
00105 void PartBase::setInstance( KInstance *inst )
00106 {
00107 setInstance( inst, true );
00108 }
00109
00110 void PartBase::setInstance( KInstance *inst, bool bLoadPlugins )
00111 {
00112 KXMLGUIClient::setInstance( inst );
00113 KGlobal::locale()->insertCatalogue( inst->instanceName() );
00114
00115 KGlobal::dirs()->addResourceType( inst->instanceName() + "data",
00116 KStandardDirs::kde_default( "data" )
00117 + QString::fromLatin1( inst->instanceName() ) + '/' );
00118 if ( bLoadPlugins )
00119 loadPlugins( m_obj, this, instance() );
00120 }
00121
00122 void PartBase::loadPlugins( QObject *parent, KXMLGUIClient *parentGUIClient, KInstance *instance )
00123 {
00124 if( d->m_pluginLoadingMode != DoNotLoadPlugins )
00125 Plugin::loadPlugins( parent, parentGUIClient, instance, d->m_pluginLoadingMode == LoadPlugins );
00126 }
00127
00128 void PartBase::setPluginLoadingMode( PluginLoadingMode loadingMode )
00129 {
00130 d->m_pluginLoadingMode = loadingMode;
00131 }
00132
00133 Part::Part( QObject *parent, const char* name )
00134 : QObject( parent, name )
00135 {
00136 d = new PartPrivate;
00137 m_widget = 0L;
00138 m_manager = 0L;
00139 PartBase::setPartObject( this );
00140 }
00141
00142 Part::~Part()
00143 {
00144 kdDebug(1000) << "Part::~Part " << this << endl;
00145
00146 if ( m_widget )
00147 {
00148
00149 disconnect( m_widget, SIGNAL( destroyed() ),
00150 this, SLOT( slotWidgetDestroyed() ) );
00151 }
00152
00153 if ( m_manager )
00154 m_manager->removePart(this);
00155
00156 if ( m_widget )
00157 {
00158 kdDebug(1000) << "deleting widget " << m_widget << " " << m_widget->name() << endl;
00159 delete (QWidget*) m_widget;
00160 }
00161
00162 delete d;
00163 }
00164
00165 void Part::embed( QWidget * parentWidget )
00166 {
00167 if ( widget() )
00168 widget()->reparent( parentWidget, 0, QPoint( 0, 0 ), true );
00169 }
00170
00171 QWidget *Part::widget()
00172 {
00173 return m_widget;
00174 }
00175
00176 void Part::setManager( PartManager *manager )
00177 {
00178 m_manager = manager;
00179 }
00180
00181 PartManager *Part::manager() const
00182 {
00183 return m_manager;
00184 }
00185
00186 Part *Part::hitTest( QWidget *widget, const QPoint & )
00187 {
00188 if ( (QWidget *)m_widget != widget )
00189 return 0L;
00190
00191 return this;
00192 }
00193
00194 void Part::setWidget( QWidget *widget )
00195 {
00196 assert ( !m_widget );
00197 m_widget = widget;
00198 connect( m_widget, SIGNAL( destroyed() ),
00199 this, SLOT( slotWidgetDestroyed() ) );
00200
00201
00202
00203 actionCollection()->setWidget( widget );
00204
00205
00206
00207
00208 actionCollection()->setAutoConnectShortcuts( false );
00209 }
00210
00211 void Part::setSelectable( bool selectable )
00212 {
00213 d->m_bSelectable = selectable;
00214 }
00215
00216 bool Part::isSelectable() const
00217 {
00218 return d->m_bSelectable;
00219 }
00220
00221 void Part::customEvent( QCustomEvent *event )
00222 {
00223 if ( PartActivateEvent::test( event ) )
00224 {
00225 partActivateEvent( (PartActivateEvent *)event );
00226 return;
00227 }
00228
00229 if ( PartSelectEvent::test( event ) )
00230 {
00231 partSelectEvent( (PartSelectEvent *)event );
00232 return;
00233 }
00234
00235 if ( GUIActivateEvent::test( event ) )
00236 {
00237 guiActivateEvent( (GUIActivateEvent *)event );
00238 return;
00239 }
00240
00241 QObject::customEvent( event );
00242 }
00243
00244 void Part::partActivateEvent( PartActivateEvent * )
00245 {
00246 }
00247
00248 void Part::partSelectEvent( PartSelectEvent * )
00249 {
00250 }
00251
00252 void Part::guiActivateEvent( GUIActivateEvent * )
00253 {
00254 }
00255
00256 QWidget *Part::hostContainer( const QString &containerName )
00257 {
00258 if ( !factory() )
00259 return 0L;
00260
00261 return factory()->container( containerName, this );
00262 }
00263
00264 void Part::slotWidgetDestroyed()
00265 {
00266 kdDebug(1000) << "KPart::slotWidgetDestroyed(), deleting part " << name() << endl;
00267 m_widget = 0;
00268 delete this;
00269 }
00270
00272
00273 namespace KParts
00274 {
00275
00276 class ReadOnlyPartPrivate
00277 {
00278 public:
00279 ReadOnlyPartPrivate()
00280 {
00281 m_job = 0L;
00282 m_uploadJob = 0L;
00283 m_showProgressInfo = true;
00284 m_saveOk = false;
00285 m_waitForSave = false;
00286 m_duringSaveAs = false;
00287 }
00288 ~ReadOnlyPartPrivate()
00289 {
00290 }
00291
00292 KIO::FileCopyJob * m_job;
00293 KIO::FileCopyJob * m_uploadJob;
00294 KURL m_originalURL;
00295 bool m_showProgressInfo : 1;
00296 bool m_saveOk : 1;
00297 bool m_waitForSave : 1;
00298 bool m_duringSaveAs : 1;
00299 };
00300
00301 }
00302
00303 ReadOnlyPart::ReadOnlyPart( QObject *parent, const char *name )
00304 : Part( parent, name ), m_bTemp( false )
00305 {
00306 d = new ReadOnlyPartPrivate;
00307 }
00308
00309 ReadOnlyPart::~ReadOnlyPart()
00310 {
00311 ReadOnlyPart::closeURL();
00312 delete d;
00313 }
00314
00315 void ReadOnlyPart::setProgressInfoEnabled( bool show )
00316 {
00317 d->m_showProgressInfo = show;
00318 }
00319
00320 bool ReadOnlyPart::isProgressInfoEnabled() const
00321 {
00322 return d->m_showProgressInfo;
00323 }
00324
00325 #ifndef KDE_NO_COMPAT
00326 void ReadOnlyPart::showProgressInfo( bool show )
00327 {
00328 d->m_showProgressInfo = show;
00329 }
00330 #endif
00331
00332 bool ReadOnlyPart::openURL( const KURL &url )
00333 {
00334 if ( !url.isValid() )
00335 return false;
00336 if ( !closeURL() )
00337 return false;
00338 m_url = url;
00339 if ( m_url.isLocalFile() )
00340 {
00341 emit started( 0 );
00342 m_file = m_url.path();
00343 bool ret = openFile();
00344 if (ret)
00345 {
00346 emit completed();
00347 emit setWindowCaption( m_url.prettyURL() );
00348 };
00349 return ret;
00350 }
00351 else
00352 {
00353 m_bTemp = true;
00354
00355 QString fileName = url.fileName();
00356 QFileInfo fileInfo(fileName);
00357 QString ext = fileInfo.extension();
00358 QString extension;
00359 if ( !ext.isEmpty() && url.query().isNull() )
00360 extension = "."+ext;
00361 KTempFile tempFile( QString::null, extension );
00362 m_file = tempFile.name();
00363
00364 KURL destURL;
00365 destURL.setPath( m_file );
00366 d->m_job = KIO::file_copy( m_url, destURL, 0600, true, false, d->m_showProgressInfo );
00367 d->m_job->setWindow( widget() ? widget()->topLevelWidget() : 0 );
00368 emit started( d->m_job );
00369 connect( d->m_job, SIGNAL( result( KIO::Job * ) ), this, SLOT( slotJobFinished ( KIO::Job * ) ) );
00370 return true;
00371 }
00372 }
00373
00374 void ReadOnlyPart::abortLoad()
00375 {
00376 if ( d->m_job )
00377 {
00378
00379 d->m_job->kill();
00380 d->m_job = 0;
00381 }
00382 }
00383
00384 bool ReadOnlyPart::closeURL()
00385 {
00386 abortLoad();
00387
00388 if ( m_bTemp )
00389 {
00390 unlink( QFile::encodeName(m_file) );
00391 m_bTemp = false;
00392 }
00393
00394
00395
00396 return true;
00397 }
00398
00399 void ReadOnlyPart::slotJobFinished( KIO::Job * job )
00400 {
00401 kdDebug(1000) << "ReadOnlyPart::slotJobFinished" << endl;
00402 assert( job == d->m_job );
00403 d->m_job = 0;
00404 if (job->error())
00405 emit canceled( job->errorString() );
00406 else
00407 {
00408 if ( openFile() )
00409 emit setWindowCaption( m_url.prettyURL() );
00410 emit completed();
00411 }
00412 }
00413
00414 void ReadOnlyPart::guiActivateEvent( GUIActivateEvent * event )
00415 {
00416 if (event->activated())
00417 {
00418 if (!m_url.isEmpty())
00419 {
00420 kdDebug(1000) << "ReadOnlyPart::guiActivateEvent -> " << m_url.prettyURL() << endl;
00421 emit setWindowCaption( m_url.prettyURL() );
00422 } else emit setWindowCaption( "" );
00423 }
00424 }
00425
00426 bool ReadOnlyPart::openStream( const QString& mimeType, const KURL& url )
00427 {
00428 if ( !closeURL() )
00429 return false;
00430 m_url = url;
00431 return doOpenStream( mimeType );
00432 }
00433
00434 bool ReadOnlyPart::writeStream( const QByteArray& data )
00435 {
00436 return doWriteStream( data );
00437 }
00438
00439 bool ReadOnlyPart::closeStream()
00440 {
00441 return doCloseStream();
00442 }
00443
00445
00446 ReadWritePart::ReadWritePart( QObject *parent, const char *name )
00447 : ReadOnlyPart( parent, name ), m_bModified( false ), m_bClosing( false )
00448 {
00449 m_bReadWrite = true;
00450 }
00451
00452 ReadWritePart::~ReadWritePart()
00453 {
00454
00455
00456
00457
00458 }
00459
00460 void ReadWritePart::setReadWrite( bool readwrite )
00461 {
00462
00463 m_bReadWrite = readwrite;
00464 }
00465
00466 void ReadWritePart::setModified( bool modified )
00467 {
00468 kdDebug(1000) << "ReadWritePart::setModified( " << (modified ? "true" : "false") << ")" << endl;
00469 if ( !m_bReadWrite && modified )
00470 {
00471 kdError(1000) << "Can't set a read-only document to 'modified' !" << endl;
00472 return;
00473 }
00474 m_bModified = modified;
00475 }
00476
00477 void ReadWritePart::setModified()
00478 {
00479 setModified( true );
00480 }
00481
00482 bool ReadWritePart::queryClose()
00483 {
00484 if ( !isReadWrite() || !isModified() )
00485 return true;
00486
00487 QString docName = url().fileName();
00488 if (docName.isEmpty()) docName = i18n( "Untitled" );
00489
00490 int res = KMessageBox::warningYesNoCancel( widget(),
00491 i18n( "The document \"%1\" has been modified.\n"
00492 "Do you want to save your changes or discard them?" ).arg( docName ),
00493 i18n( "Close Document" ), KStdGuiItem::save(), KStdGuiItem::discard() );
00494
00495 bool abortClose=false;
00496 bool handled=false;
00497
00498 switch(res) {
00499 case KMessageBox::Yes :
00500 sigQueryClose(&handled,&abortClose);
00501 if (!handled)
00502 {
00503 if (m_url.isEmpty())
00504 {
00505 KURL url = KFileDialog::getSaveURL();
00506 if (url.isEmpty())
00507 return false;
00508
00509 saveAs( url );
00510 }
00511 else
00512 {
00513 save();
00514 }
00515 } else if (abortClose) return false;
00516 return waitSaveComplete();
00517 case KMessageBox::No :
00518 return true;
00519 default :
00520 return false;
00521 }
00522 }
00523
00524 bool ReadWritePart::closeURL()
00525 {
00526 abortLoad();
00527 if ( isReadWrite() && isModified() )
00528 {
00529 if (!queryClose())
00530 return false;
00531 }
00532
00533 return ReadOnlyPart::closeURL();
00534 }
00535
00536 bool ReadWritePart::closeURL( bool promptToSave )
00537 {
00538 return promptToSave ? closeURL() : ReadOnlyPart::closeURL();
00539 }
00540
00541 bool ReadWritePart::save()
00542 {
00543 d->m_saveOk = false;
00544 if ( m_file.isEmpty() )
00545 prepareSaving();
00546 if( saveFile() )
00547 return saveToURL();
00548 else
00549 emit canceled(QString::null);
00550 return false;
00551 }
00552
00553 bool ReadWritePart::saveAs( const KURL & kurl )
00554 {
00555 if (!kurl.isValid())
00556 {
00557 kdError(1000) << "saveAs: Malformed URL " << kurl.url() << endl;
00558 return false;
00559 }
00560 d->m_duringSaveAs = true;
00561 d->m_originalURL = m_url;
00562 m_url = kurl;
00563 prepareSaving();
00564 bool result = save();
00565 if (result)
00566 emit setWindowCaption( m_url.prettyURL() );
00567 else
00568 {
00569 m_url = d->m_originalURL;
00570 d->m_duringSaveAs = false;
00571 d->m_originalURL = KURL();
00572 }
00573
00574 return result;
00575 }
00576
00577
00578 void ReadWritePart::prepareSaving()
00579 {
00580
00581 if ( m_url.isLocalFile() )
00582 {
00583 if ( m_bTemp )
00584 {
00585 unlink( QFile::encodeName(m_file) );
00586 m_bTemp = false;
00587 }
00588 m_file = m_url.path();
00589 }
00590 else
00591 {
00592
00593 if ( m_file.isEmpty() || !m_bTemp )
00594 {
00595 KTempFile tempFile;
00596 m_file = tempFile.name();
00597 m_bTemp = true;
00598 }
00599
00600 }
00601 }
00602
00603 bool ReadWritePart::saveToURL()
00604 {
00605 if ( m_url.isLocalFile() )
00606 {
00607 setModified( false );
00608 emit completed();
00609
00610 assert( !m_bTemp );
00611 d->m_saveOk = true;
00612 d->m_duringSaveAs = false;
00613 d->m_originalURL = KURL();
00614 return true;
00615 }
00616 else
00617 {
00618 if (d->m_uploadJob)
00619 {
00620 unlink(QFile::encodeName(d->m_uploadJob->srcURL().path()));
00621 d->m_uploadJob->kill();
00622 d->m_uploadJob = 0;
00623 }
00624 KTempFile tempFile;
00625 QString uploadFile = tempFile.name();
00626 KURL uploadUrl;
00627 uploadUrl.setPath( uploadFile );
00628 tempFile.unlink();
00629
00630 if (::link(QFile::encodeName(m_file), QFile::encodeName(uploadFile)) != 0)
00631 {
00632
00633 return false;
00634 }
00635 d->m_uploadJob = KIO::file_move( uploadUrl, m_url, -1, true );
00636 d->m_uploadJob->setWindow( widget() ? widget()->topLevelWidget() : 0 );
00637 connect( d->m_uploadJob, SIGNAL( result( KIO::Job * ) ), this, SLOT( slotUploadFinished (KIO::Job *) ) );
00638 return true;
00639 }
00640 }
00641
00642 void ReadWritePart::slotUploadFinished( KIO::Job * )
00643 {
00644 if (d->m_uploadJob->error())
00645 {
00646 unlink(QFile::encodeName(d->m_uploadJob->srcURL().path()));
00647 QString error = d->m_uploadJob->errorString();
00648 d->m_uploadJob = 0;
00649 if (d->m_duringSaveAs)
00650 m_url = d->m_originalURL;
00651 emit canceled( error );
00652 }
00653 else
00654 {
00655 KDirNotify_stub allDirNotify("*", "KDirNotify*");
00656 KURL dirUrl( m_url );
00657 dirUrl.setPath( dirUrl.directory() );
00658 allDirNotify.FilesAdded( dirUrl );
00659
00660 d->m_uploadJob = 0;
00661 setModified( false );
00662 emit completed();
00663 d->m_saveOk = true;
00664 }
00665 d->m_duringSaveAs = false;
00666 d->m_originalURL = KURL();
00667 if (d->m_waitForSave)
00668 {
00669 qApp->exit_loop();
00670 }
00671 }
00672
00673
00674 void qt_enter_modal( QWidget *widget );
00675 void qt_leave_modal( QWidget *widget );
00676
00677 bool ReadWritePart::waitSaveComplete()
00678 {
00679 if (!d->m_uploadJob)
00680 return d->m_saveOk;
00681
00682 d->m_waitForSave = true;
00683
00684 QWidget dummy(0,0,WType_Dialog | WShowModal);
00685 dummy.setFocusPolicy( QWidget::NoFocus );
00686 qt_enter_modal(&dummy);
00687 qApp->enter_loop();
00688 qt_leave_modal(&dummy);
00689
00690 d->m_waitForSave = false;
00691
00692 return d->m_saveOk;
00693 }
00694
00695 #include "part.moc"
00696
00697