kchmmainwindow.cpp

chm阅读器 用于在linux系统下chm文档的阅读

}

void KCHMMainWindow::updateHistoryMenu()
{
	m_menuHistory->clear ();
	
	for ( int i = appConfig.m_History.size() - 1; i >= 0; i-- )
		m_menuHistory->insertItem( appConfig.m_History[i], i );
}

void KCHMMainWindow::slotActivateContentTab( )
{
	if ( m_tabContextPage != -1 ) 
		m_tabWidget->setCurrentPage( m_tabContextPage );
}

void KCHMMainWindow::slotActivateIndexTab( )
{
	if ( m_tabIndexPage != -1 ) 
		m_tabWidget->setCurrentPage( m_tabIndexPage );
}

void KCHMMainWindow::slotActivateSearchTab( )
{
	if ( m_tabSearchPage != -1 ) 
		m_tabWidget->setCurrentPage( m_tabSearchPage );
}

void KCHMMainWindow::slotActivateBookmarkTab( )
{
	m_tabWidget->setCurrentPage( m_tabBookmarkPage );
}

void KCHMMainWindow::showOrHideContextWindow( int tabindex )
{
	if ( tabindex == -1 )
	{
		if ( m_contentsWindow )
		{
			m_tabWidget->removePage (m_contentsWindow);
			delete m_contentsWindow;
			m_contentsWindow = 0;
		}
	}
	else
	{
		if ( !m_contentsWindow )
		{
			m_contentsWindow = new KCHMContentsWindow( m_tabWidget );
			
			// Handle clicking on m_contentsWindow element
			connect( m_contentsWindow, 
					 SIGNAL( clicked( QListViewItem* ) ), 
					 this, 
					 SLOT( slotOnTreeClicked( QListViewItem* ) ) );
			
			connect( m_contentsWindow, 
					 SIGNAL( doubleClicked ( QListViewItem *, const QPoint &, int ) ), 
					 this, 
					 SLOT( slotOnTreeDoubleClicked ( QListViewItem *, const QPoint &, int ) ) );
			
			m_tabWidget->insertTab (m_contentsWindow, i18n( "Contents" ), tabindex);
		}
	}
}

void KCHMMainWindow::showOrHideIndexWindow( int tabindex )
{
	// Test whether to show/invalidate the index window
	if ( tabindex == -1 )
	{
		if ( m_indexWindow )
		{
			m_tabWidget->removePage (m_indexWindow);
			delete m_indexWindow;
			m_indexWindow = 0;
		}
	}
	else
	{
		if ( !m_indexWindow )
		{
			m_indexWindow = new KCHMIndexWindow (m_tabWidget);
			m_tabWidget->insertTab (m_indexWindow, i18n( "Index" ), tabindex);
		}
		else
			m_indexWindow->invalidate();
	}
}

void KCHMMainWindow::showOrHideSearchWindow( int tabindex )
{
	if ( tabindex == -1 )
	{
		if ( m_searchWindow )
		{
			m_tabWidget->removePage (m_searchWindow);
			delete m_searchWindow;
			m_searchWindow = 0;
		}
	}
	else
	{
		if ( !m_searchWindow )
		{
			m_searchWindow = new KCHMSearchWindow (m_tabWidget);
			m_tabWidget->insertTab (m_searchWindow, i18n( "Search" ), tabindex);
		}
		else
			m_searchWindow->invalidate();
	}
}

void KCHMMainWindow::slotEnableFullScreenMode( bool enable )
{
	if ( enable )
	{
		if ( !isFullScreen() )
		{
			showFullScreen ();
			menuBar()->hide();
			statusBar()->hide();
		}
	}
	else
	{
		if ( isFullScreen() )
		{
			showNormal ();
			menuBar()->show();
			statusBar()->show();
		}
	}
}

void KCHMMainWindow::slotShowContentsWindow( bool show )
{
	if ( show )
		m_tabWidget->show();
	else
		m_tabWidget->hide();
}

void KCHMMainWindow::slotToggleFullScreenMode( )
{
	slotEnableFullScreenMode( !isFullScreen() );
}

void KCHMMainWindow::slotLocateInContentWindow( )
{
	// There may be no content tab at all
	if ( !m_contentsWindow  || m_tabContextPage == -1 )
		return;
	
	// Activate a content tab
	m_tabWidget->setCurrentPage( m_tabContextPage );
	
	if ( m_contentsWindow )
	{
		// Open all the tree items to show current item (if needed)
		KCHMIndTocItem * treeitem = m_contentsWindow->getTreeItem( currentBrowser()->getOpenedPage() );
	
		if ( treeitem )
		{
			KCHMIndTocItem * itemparent = treeitem;
			
			while ( (itemparent = (KCHMIndTocItem*) itemparent->parent()) != 0 )
				itemparent->setOpen(true);
			
			m_contentsWindow->setCurrentItem (treeitem);
			m_contentsWindow->ensureItemVisible (treeitem);
		}
		else
			statusBar()->message( i18n( "Could not locate opened topic in content window"), 2000 );
	}
}

void KCHMMainWindow::slotExtractCHM( )
{
	QStringList files;
	
#if defined (USE_KDE)
	QString outdir = KFileDialog::getExistingDirectory (
			QString::null,
			this,
			i18n("Choose a directory to store CHM content") );
#else
	QString outdir = QFileDialog::getExistingDirectory (
			QString::null,
			this,
			0,
			i18n("Choose a directory to store CHM content"),
			TRUE );
#endif
	
	if ( outdir.isEmpty() )
		return;
	
	outdir += "/";
	
	// Enumerate all the files in archive
	if ( !m_chmFile || !m_chmFile->enumerateFiles( &files ) )
		return;

	KQProgressModalDialog progress( i18n("Extracting CHM content"), i18n("Extracting files..."), i18n("Abort"), files.size(), this );
	
	for ( unsigned int i = 0; i < files.size(); i++ )
	{
		progress.setProgress( i );
		
		if ( (i % 3) == 0 )
		{
			qApp->processEvents();

			if ( progress.wasCancelled() )
				break;
		}

		// Extract the file
		QByteArray buf;
		
		if ( m_chmFile->getFileContentAsBinary( &buf, files[i] ) )
		{
			// Split filename to get the list of subdirectories
			QStringList dirs = QStringList::split( '/', files[i] );

			// Walk through the list of subdirectories, and create them if needed
			// dirlevel is used to detect extra .. and prevent overwriting files
			// outside the directory (like creating the file images/../../../../../etc/passwd
			unsigned int i, dirlevel = 0;
			QStringList dirlist;
				
			for ( i = 0; i < dirs.size() - 1; i++ )
			{
				// Skip .. which lead too far above
				if ( dirs[i] == ".." )
				{
					if ( dirlevel > 0 )
					{
						dirlevel--;
						dirlist.pop_back();
					}
				}
				else
				{
					dirlist.push_back( dirs[i] );
					
					QDir dir ( outdir + dirlist.join( "/" ) );
					if ( !dir.exists() )
					{
						if ( !dir.mkdir( dir.path() ) )
							qWarning( "Could not create subdir %s\n", dir.path().ascii() );
					}
				}
			}
			
			QString filename = outdir + dirlist.join( "/" ) + "/" + dirs[i];
			QFile wf( filename );
			if ( !wf.open( IO_WriteOnly ) )
			{
					qWarning( "Could not write file %s\n", filename.ascii() );
					continue;
			}
			
			wf. writeBlock( buf );
			wf.close();
		}
		else
			qWarning( "Could not get file %s\n", files[i].ascii() );
	}
	
	progress.setProgress( files.size() );
}

KCHMViewWindow * KCHMMainWindow::currentBrowser( ) const
{
	return m_viewWindowMgr->current();
}

void KCHMMainWindow::slotOpenPageInNewTab( )
{
	openPage( currentBrowser()->getNewTabLink(), OPF_NEW_TAB | OPF_CONTENT_TREE );
}

void KCHMMainWindow::slotOpenPageInNewBackgroundTab( )
{
	openPage( currentBrowser()->getNewTabLink(), OPF_NEW_TAB | OPF_BACKGROUND );
}

void KCHMMainWindow::slotBrowserChanged( KCHMViewWindow * newbrowser )
{
	locateInContentTree( newbrowser->getOpenedPage() );
}

void KCHMMainWindow::locateInContentTree( const QString & url )
{
	if ( !m_contentsWindow )
		return;
	
	KCHMIndTocItem * treeitem = m_contentsWindow->getTreeItem( url );
	
	if ( treeitem )
	{
		KCHMIndTocItem * itemparent = treeitem;
		while ( (itemparent = (KCHMIndTocItem*) itemparent->parent()) != 0 )
			itemparent->setOpen(true);
			
		m_contentsWindow->setCurrentItem (treeitem);
		m_contentsWindow->ensureItemVisible (treeitem);
	}
}

void KCHMMainWindow::slotOnTreeDoubleClicked( QListViewItem * item, const QPoint &, int )
{
	// Open/close only existing item which have children
	if ( !item || item->childCount() == 0 )
		return;
	
	item->setOpen( !item->isOpen() );
	item->repaint();
}

bool KCHMMainWindow::event( QEvent * e )
{
	if ( e->type() == QEvent::User )
		return handleUserEvent( (KCHMUserEvent*) e );
	
	return QWidget::event( e );
}

bool KCHMMainWindow::handleUserEvent( const KCHMUserEvent * event )
{
	if ( event->m_action == "loadAndOpen" )
	{
		if ( event->m_args.size() != 1 && event->m_args.size() != 2 )
			qFatal("handleUserEvent: event loadAndOpen must receive 1 or 2 args");
		
		QString chmfile = event->m_args[0];
		QString openurl = event->m_args.size() > 1 ? event->m_args[1] : "/";
				
		return loadChmFile( chmfile, false ) && openPage( openurl );
	}
	else if ( event->m_action == "openPage" )
	{
		if ( event->m_args.size() != 1 )
			qFatal("handleUserEvent: event openPage must receive 1 arg");
		
		return openPage( event->m_args[0] );
	}
	else if ( event->m_action == "findInIndex" )
	{
		if ( event->m_args.size() != 1 )
			qFatal( "handleUserEvent: event searchQuery must receive 1 arg" );
		
		if ( m_tabIndexPage == -1 )
			return false;

		slotActivateIndexTab();
		m_indexWindow->search( event->m_args[0] );
		return true;
	}
	else if ( event->m_action == "searchQuery" )
	{
		if ( event->m_args.size() != 1 )
			qFatal( "handleUserEvent: event searchQuery must receive 1 arg" );
		
		if ( m_tabSearchPage == -1 )
			return false;

		slotActivateSearchTab();
		m_searchWindow->execSearchQueryInGui( event->m_args[0] );
		return true;
	}
	else
		qWarning( "Unknown user event received: %s", event->m_action.ascii() );
	
	return false;
}


#if defined (ENABLE_AUTOTEST_SUPPORT)
void KCHMMainWindow::runAutoTest()
{
	KCHMIndTocItem * item;

	switch (m_autoteststate)
	{
	case STATE_INITIAL:
		if ( m_contentsWindow && !m_useShortAutotest )
		{
			m_autotestlistiterator = QListViewItemIterator (m_contentsWindow);
			m_autoteststate = STATE_CONTENTS_OPENNEXTPAGE;
		}
		else
			m_autoteststate = STATE_OPEN_INDEX;
		
		QTimer::singleShot (500, this, SLOT(runAutoTest()) );
		break; // allow to finish the initialization sequence
		
	case STATE_CONTENTS_OPENNEXTPAGE:
		if ( (item = (KCHMIndTocItem *) m_autotestlistiterator.current()) != 0 )
		{
			openPage( item->getUrl(), OPF_CONTENT_TREE | OPF_ADD2HISTORY );
			m_autotestlistiterator++;
		}
		else
			m_autoteststate = STATE_OPEN_INDEX;
		
		QTimer::singleShot (50, this, SLOT(runAutoTest()) );
		break;

	case STATE_OPEN_INDEX:
		if ( m_indexWindow )
			m_tabWidget->setCurrentPage (1);
		
		m_autoteststate = STATE_SHUTDOWN;
		QTimer::singleShot (500, this, SLOT(runAutoTest()) );
		break;

	case STATE_SHUTDOWN:
		qApp->quit();
		break;
		
	default:
		break;
	}
}
#endif /* defined (ENABLE_AUTOTEST_SUPPORT) */


//TODO: KDE: xmlgui
//TODO: Search result highlighting