Added abandoned KDE3 version of kchmviewer

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/kchmviewer@1090662 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 314 insertions, 0 deletions

diff --git a/src/kchmviewwindow.cpp b/src/kchmviewwindow.cpp
new file mode 100644
index 0000000..3eea6ca
--- /dev/null
+++ b/src/kchmviewwindow.cpp
@@ -0,0 +1,314 @@
+/***************************************************************************
+ *   Copyright (C) 2004-2007 by Georgy Yunaev, [email protected]       *
+ *   Please do not use email address above for bug reports; see            *
+ *   the README file                                                       *
+ *                                                                         *
+ *   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.             *
+ ***************************************************************************/
+
+// Do not use tr() or i18n() in this file - this class is not derived from QObject.
+
+#include <qregexp.h>
+#include <qstring.h>
+#include <qdir.h>
+
+#include "libchmfile.h"
+#include "libchmurlfactory.h"
+
+#include "kchmconfig.h"
+#include "kchmviewwindow.h"
+#include "kchmmainwindow.h"
+#include "kchmviewwindowmgr.h"
+#include "kchmnavtoolbar.h"
+
+
+KCHMViewWindow::KCHMViewWindow( QTabWidget * parent )
+{
+	invalidate();
+	m_contextMenu = 0;
+	m_contextMenuLink = 0;
+	m_historyMaxSize = 25;
+	
+	m_parentTabWidget = parent;
+}
+
+KCHMViewWindow::~KCHMViewWindow()
+{
+}
+
+void KCHMViewWindow::invalidate( )
+{
+	m_base_url = "/";
+	m_openedPage = QString::null;
+	m_newTabLinkKeeper = QString::null;
+
+	m_historyCurrentPos = 0;
+	m_history.clear();
+	
+	updateNavigationToolbar();
+}
+
+
+
+QString KCHMViewWindow::makeURLabsolute ( const QString & url, bool set_as_base )
+{
+	QString p1, p2, newurl = url;
+
+	if ( !LCHMUrlFactory::isRemoteURL (url, p1)
+	&& !LCHMUrlFactory::isJavascriptURL (url)
+	&& !LCHMUrlFactory::isNewChmURL (url, p1, p2) )
+	{
+		newurl = QDir::cleanDirPath (url);
+
+		// Normalize url, so it becomes absolute
+		if ( newurl[0] != '/' )
+			newurl = m_base_url + "/" + newurl;
+	
+		newurl = QDir::cleanDirPath (newurl);
+
+		if ( set_as_base )
+		{
+			m_base_url = newurl;
+		
+			// and set up new baseurl
+			int i = newurl.findRev('/');
+			if ( i != -1 )
+				m_base_url = QDir::cleanDirPath (newurl.left (i + 1));
+		}
+	}
+
+//qDebug ("KCHMViewWindow::makeURLabsolute (%s) -> (%s)", url.ascii(), newurl.ascii());
+	return newurl;
+}
+
+bool KCHMViewWindow::openUrl ( const QString& origurl )
+{
+	QString chmfile, page, newurl = origurl;
+
+	if ( !origurl )
+		return true;
+
+	// URL could be a complete ms-its link. The file should be already loaded (for QTextBrowser),
+	// or will be loaded (for kio slave). We care only about the path component.
+	if ( LCHMUrlFactory::isNewChmURL( newurl, chmfile, page ) )
+	{
+		// If a new chm file is opened here, and we do not use KCHMLPart, we better abort
+		if ( chmfile != ::mainWindow->getOpenedFileName() && appConfig.m_kdeUseQTextBrowser )
+			qFatal("KCHMViewWindow::openUrl(): opened new chm file %s while current is %s",
+				   chmfile.ascii(), ::mainWindow->getOpenedFileName().ascii() );
+
+		// It is OK to have a new file in chm for KHTMLPart
+		newurl = page;
+	}
+
+	makeURLabsolute (newurl);
+	handleStartPageAsImage( newurl );
+	
+	if ( openPage (newurl) )
+	{
+		m_newTabLinkKeeper = QString::null;
+		m_openedPage = newurl;
+		
+		mainWindow->viewWindowMgr()->setTabName( this );
+		return true;
+	}
+
+	return false;
+}
+
+void KCHMViewWindow::handleStartPageAsImage( QString & link )
+{
+	// Handle pics
+	if ( link.endsWith( ".jpg", false )
+	|| link.endsWith( ".jpeg", false )
+	|| link.endsWith( ".gif", false )
+	|| link.endsWith( ".png", false )
+	|| link.endsWith( ".bmp", false ) )
+		link += LCHMUrlFactory::getInternalUriExtension();
+}
+
+
+KQPopupMenu * KCHMViewWindow::createStandardContextMenu( QWidget * parent )
+{
+	KQPopupMenu * contextMenu = new KQPopupMenu( parent );
+	
+	contextMenu->insertItem ( "&Copy", ::mainWindow, SLOT(slotBrowserCopy()) );
+	contextMenu->insertItem ( "&Select all", ::mainWindow, SLOT(slotBrowserSelectAll()) );
+		
+	return contextMenu;
+}
+
+
+KQPopupMenu * KCHMViewWindow::getContextMenu( const QString & link, QWidget * parent )
+{
+	if ( link.isNull() )
+	{
+		// standard context menu
+		if ( !m_contextMenu )
+			m_contextMenu = createStandardContextMenu( parent );
+		
+		return m_contextMenu;
+	}
+	else
+	{
+		// Open in New Tab context menu
+		// standard context menu
+		if ( !m_contextMenuLink )
+		{
+			m_contextMenuLink = createStandardContextMenu( parent );
+			m_contextMenuLink->insertSeparator();
+			
+			m_contextMenuLink->insertItem ( "&Open this link in a new tab", ::mainWindow, SLOT(slotOpenPageInNewTab()), QKeySequence("Shift+Enter") );
+			
+			m_contextMenuLink->insertItem ( "&Open this link in a new background tab", ::mainWindow, SLOT(slotOpenPageInNewBackgroundTab()), QKeySequence("Ctrl+Enter") );
+		}
+		
+		setTabKeeper( link );
+		return m_contextMenuLink;
+	}
+}
+
+QString KCHMViewWindow::getTitle() const
+{
+	QString title = ::mainWindow->chmFile()->getTopicByUrl( m_openedPage );
+	
+	if ( title.isEmpty() )
+		title = m_openedPage;
+	
+	return title;
+}
+
+
+void KCHMViewWindow::navigateForward()
+{
+	if ( m_historyCurrentPos < m_history.size() )
+	{
+		m_historyCurrentPos++;		
+		::mainWindow->openPage( m_history[m_historyCurrentPos].getUrl() );
+		setScrollbarPosition( m_history[m_historyCurrentPos].getScrollPosition() );
+		
+		// By default navigation starts with empty array, and a new entry is added when
+		// you change the current page (or it may not be added). So to have the whole system
+		// worked, the m_historyCurrentPos should never be m_history.size() - 1, it should be
+		// either greater or lesser.
+		// 
+		// This is a dirty hack - but the whole navigation system now looks to me like
+		// it was written by some drunk monkey - which is probably not far from The Real Truth.
+		// Shame on me - Tim.
+		if ( m_historyCurrentPos == (m_history.size() - 1) )
+			m_historyCurrentPos++;
+	}
+	
+	updateNavigationToolbar();
+}
+
+void KCHMViewWindow::navigateBack( )
+{
+	if ( m_historyCurrentPos > 0 )
+	{
+		// If we're on top of list, and pressing Back, the last page is still
+		// not in list - so add it, if it is not still here
+		if ( m_historyCurrentPos == m_history.size() )
+		{
+			if ( m_history[m_historyCurrentPos-1].getUrl() != m_openedPage )
+				m_history.push_back( KCHMUrlHistory( m_openedPage, getScrollbarPosition() ) );
+			else
+			{
+				// part 2 of the navigation hack - see navigateForward() comment
+				m_history[m_historyCurrentPos-1].setScrollPosition( getScrollbarPosition() );
+				m_historyCurrentPos--;
+			}
+		}
+
+		m_historyCurrentPos--;
+	
+		::mainWindow->openPage( m_history[m_historyCurrentPos].getUrl() );
+		setScrollbarPosition( m_history[m_historyCurrentPos].getScrollPosition() );
+	}
+	
+	updateNavigationToolbar();
+}
+
+void KCHMViewWindow::navigateHome( )
+{
+	::mainWindow->openPage( ::mainWindow->chmFile()->homeUrl() );
+}
+
+void KCHMViewWindow::addNavigationHistory( const QString & url, int scrollpos )
+{
+	// shred the 'forward' history
+	if ( m_historyCurrentPos < m_history.size() )
+		m_history.erase( m_history.at( m_historyCurrentPos ), m_history.end());
+
+	// do not grow the history if already max size
+	if ( m_history.size() >= m_historyMaxSize )
+		m_history.pop_front();
+
+	m_history.push_back( KCHMUrlHistory( url, scrollpos ) );
+	m_historyCurrentPos = m_history.size();
+			
+	updateNavigationToolbar();
+}
+
+void KCHMViewWindow::updateNavigationToolbar( )
+{
+	// Dump navigation for debugging
+#if 0
+	qDebug("\nNavigation dump (%d entries, current pos %d)", m_history.size(), m_historyCurrentPos );
+	for ( unsigned int i = 0; i < m_history.size(); i++ )
+		qDebug("[%02d]: %s [%d]", i, m_history[i].getUrl().ascii(),  m_history[i].getScrollPosition());
+#endif
+	
+	if ( mainWindow )
+	{
+		mainWindow->navigationToolbar()->updateIconStatus( 
+					m_historyCurrentPos > 0,
+					m_historyCurrentPos < (m_history.size() - 1) );
+	}
+}
+
+KQPopupMenu * KCHMViewWindow::createListItemContextMenu( QWidget * w )
+{
+	KQPopupMenu * contextMenu = new KQPopupMenu( w );
+		
+	contextMenu->insertItem ( "&Open this link in a new tab",
+							  ::mainWindow, 
+							  SLOT( slotOpenPageInNewTab() ), 
+							  QKeySequence( "Shift+Enter" ) );
+			
+	contextMenu->insertItem ( "&Open this link in a new background tab", 
+							  ::mainWindow, 
+							  SLOT( slotOpenPageInNewBackgroundTab() ),
+							  QKeySequence( "Ctrl+Enter" ) );
+
+	return contextMenu;
+}
+
+void KCHMViewWindow::setTabKeeper( const QString & link )
+{
+	// If we clicked on relative link, make sure we convert it to absolute right now,
+	// because later we will not have access to this view window variables
+	m_newTabLinkKeeper = link;
+	if ( m_newTabLinkKeeper[0] == '#' && !m_openedPage.isEmpty() )
+	{
+			// Clean up opened page URL
+		int pos = m_openedPage.find ('#');
+		QString fixedpath = pos == -1 ? m_openedPage : m_openedPage.left (pos);
+		m_newTabLinkKeeper = fixedpath + m_newTabLinkKeeper;
+	}
+		
+	m_newTabLinkKeeper = makeURLabsolute( m_newTabLinkKeeper, false );
+}