joachim99@81: /* This file is part of the KDiff3 project
joachim99@81: 
joachim99@81:    Copyright (C) 2008 Joachim Eibl <joachim dot eibl at gmx dot de>
joachim99@81: 
joachim99@81:    This program is free software; you can redistribute it and/or
joachim99@81:    modify it under the terms of the GNU General Public
joachim99@81:    License as published by the Free Software Foundation; version 2
joachim99@81:    of the License.
joachim99@81: 
joachim99@81:    This program is distributed in the hope that it will be useful,
joachim99@81:    but WITHOUT ANY WARRANTY; without even the implied warranty of
joachim99@81:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
joachim99@81:    General Public License for more details.
joachim99@81: 
joachim99@81:    You should have received a copy of the GNU General Public License
joachim99@81:    along with this program; see the file COPYING.  If not, write to
joachim99@81:    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
joachim99@81:    Boston, MA 02111-1307, USA.
joachim99@81: */
joachim99@81: 
joachim99@81: #include "kdiff3plugin.h"
joachim99@81: 
joachim99@81: #include <kapplication.h>
joachim99@81: #include <kstandarddirs.h>
joachim99@81: #include <kaction.h>
joachim99@81: #include <kactionmenu.h>
joachim99@81: #include <klocale.h>
joachim99@81: #include <kgenericfactory.h>
joachim99@81: #include <kurl.h>
joachim99@81: #include <kconfig.h>
joachim99@81: #include <kconfiggroup.h>
joachim99@81: #include <konq_popupmenuinformation.h>
joachim99@81: #include <kmessagebox.h>
joachim99@81: #include <kprocess.h>
joachim99@81: 
joachim99@81: //#include <iostream>
joachim99@81: 
joachim99@81: static QStringList* s_pHistory=0;
joachim99@81: 
joachim99@81: class KDiff3PluginFactory : public KGenericFactory < KDiff3Plugin, KonqPopupMenu >
joachim99@81: {
joachim99@81:    KConfig* m_pConfig;
joachim99@81:    KConfigGroup* m_pConfigGroup;
joachim99@81: public:
joachim99@81:    KDiff3PluginFactory( const char* instanceName  = 0 )
joachim99@81:    : KGenericFactory< KDiff3Plugin, KonqPopupMenu >( instanceName )
joachim99@81:    {
joachim99@81:       m_pConfig = 0;
joachim99@81:       if (s_pHistory==0)
joachim99@81:       {
joachim99@81:          //std::cout << "New History: " << instanceName << std::endl;
joachim99@81:          s_pHistory = new QStringList;
joachim99@81:          m_pConfig = new KConfig( "kdiff3pluginrc", KConfig::SimpleConfig );
joachim99@81:          m_pConfigGroup = new KConfigGroup( m_pConfig, "KDiff3Plugin" );
joachim99@81:          *s_pHistory = m_pConfigGroup->readEntry("HistoryStack", QStringList() );
joachim99@81:       }
joachim99@81:    }
joachim99@81: 
joachim99@81:    ~KDiff3PluginFactory()
joachim99@81:    {
joachim99@81:       //std::cout << "Delete History" << std::endl;
joachim99@81:       if ( s_pHistory && m_pConfigGroup )
joachim99@81:          m_pConfigGroup->writeEntry("HistoryStack",*s_pHistory);
joachim99@81:       delete s_pHistory;
joachim99@81:       delete m_pConfigGroup;
joachim99@81:       delete m_pConfig;
joachim99@81:       s_pHistory = 0;
joachim99@81:       m_pConfig = 0;
joachim99@81:    }
joachim99@81: };
joachim99@81: 
joachim99@81: K_EXPORT_COMPONENT_FACTORY (libkdiff3plugin, KDiff3PluginFactory ("kdiff3plugin"))
joachim99@81: 
joachim99@81: KDiff3Plugin::KDiff3Plugin( KonqPopupMenu* pPopupMenu, const QStringList & /* list */ )
joachim99@81: :KonqPopupMenuPlugin(pPopupMenu)
joachim99@81: {
joachim99@81:    KGlobal::locale()->insertCatalog("kdiff3_plugin");
joachim99@81:    m_pPopupMenu = pPopupMenu;
joachim99@81:    m_pParentWidget = pPopupMenu->parentWidget();
joachim99@81: }
joachim99@81: 
joachim99@81: void KDiff3Plugin::setup( KActionCollection* actionCollection, const KonqPopupMenuInformation& popupMenuInfo, QMenu* pMenu )
joachim99@81: {
joachim99@81:    if (KStandardDirs::findExe("kdiff3").isNull ())
joachim99@81:       return;
joachim99@81: 
joachim99@81:    // remember currently selected files (copy to a QStringList)
joachim99@81:    KFileItemList itemList = popupMenuInfo.items();
joachim99@81:    foreach ( const KFileItem& item, itemList )
joachim99@81:    {
joachim99@81:       //m_urlList.append( item.url() );
joachim99@81:       m_list.append( item.url().url() );
joachim99@81:    }
joachim99@81: 
joachim99@81: 
joachim99@81:    /* Menu structure:
joachim99@81:       KDiff3 -> (1 File selected):  Save 'selection' for later comparison (push onto history stack)
joachim99@81:                                     Compare 'selection' with first file on history stack.
joachim99@81:                                     Compare 'selection' with -> choice from history stack
joachim99@81:                                     Merge 'selection' with first file on history stack.
joachim99@81:                                     Merge 'selection' with last two files on history stack.
joachim99@81:                 (2 Files selected): Compare 's1' with 's2'
joachim99@81:                                     Merge 's1' with 's2'
joachim99@81:                 (3 Files selected): Compare 's1', 's2' and 's3'
joachim99@81:    */
joachim99@81: 
joachim99@81:    KActionMenu* pActionMenu = new KActionMenu (i18n ("KDiff3"), actionCollection );
joachim99@81:    KAction* pAction = 0;
joachim99@81:    QString s;
joachim99@81: 
joachim99@81:    if(m_list.count() == 1)
joachim99@81:    {
joachim99@81:       int historyCount = s_pHistory ? s_pHistory->count() : 0;
joachim99@81:       s = i18n("Compare with %1", (historyCount>0 ? s_pHistory->front() : QString()) );
joachim99@81:       pAction = new KAction ( s, actionCollection );
joachim99@81:       connect( pAction, SIGNAL(triggered(bool)), this, SLOT(slotCompareWith()));
joachim99@81:       pAction->setEnabled( m_list.count()>0 && historyCount>0 );
joachim99@81:       pActionMenu->addAction(pAction);
joachim99@81: 
joachim99@81:       s = i18n("Merge with %1", historyCount>0 ? s_pHistory->front() : QString() );
joachim99@81:       pAction = new KAction( s, actionCollection);
joachim99@81:       connect( pAction, SIGNAL(triggered(bool)), this, SLOT(slotMergeWith()));
joachim99@81:       pAction->setEnabled( m_list.count()>0 && historyCount>0 );
joachim99@81:       pActionMenu->addAction (pAction);
joachim99@81: 
joachim99@81:       s = i18n("Save '%1' for later", ( m_list.front() ) );
joachim99@81:       pAction = new KAction ( s, actionCollection);
joachim99@81:       connect( pAction, SIGNAL(triggered(bool)), this, SLOT(slotSaveForLater()));
joachim99@81:       pAction->setEnabled( m_list.count()>0 );
joachim99@81:       pActionMenu->addAction(pAction);
joachim99@81: 
joachim99@81:       pAction = new KAction (i18n("3-way merge with base"), actionCollection);
joachim99@81:       connect( pAction, SIGNAL(triggered(bool)), this, SLOT(slotMergeThreeWay()));
joachim99@81:       pAction->setEnabled( m_list.count()>0 && historyCount>=2 );
joachim99@81:       pActionMenu->addAction (pAction);
joachim99@81: 
joachim99@81:       if ( s_pHistory && !s_pHistory->empty() )
joachim99@81:       {
joachim99@81:          KActionMenu* pHistoryMenu = new KActionMenu( i18n("Compare with ..."), actionCollection );
joachim99@81:          pHistoryMenu->setEnabled( m_list.count()>0 && historyCount>0 );
joachim99@81:          pActionMenu->addAction(pHistoryMenu);
joachim99@81:          for (QStringList::iterator i = s_pHistory->begin(); i!=s_pHistory->end(); ++i)
joachim99@81:          {
joachim99@81:             pAction = new KAction( *i, actionCollection);
joachim99@81:             connect( pAction, SIGNAL(triggered(bool)), this, SLOT(slotCompareWithHistoryItem()));
joachim99@81:             pHistoryMenu->addAction (pAction);
joachim99@81:          }
joachim99@81: 
joachim99@81:          pAction = new KAction (i18n("Clear list"), actionCollection);
joachim99@81:          connect( pAction, SIGNAL(triggered(bool)), this, SLOT(slotClearList()));
joachim99@81:          pActionMenu->addAction (pAction);
joachim99@81:          pAction->setEnabled( historyCount>0 );
joachim99@81:       }
joachim99@81:    }
joachim99@81:    else if(m_list.count() == 2)
joachim99@81:    {
joachim99@81:       pAction = new KAction (i18n("Compare"), actionCollection);
joachim99@81:       connect( pAction, SIGNAL(triggered(bool)), this, SLOT(slotCompareTwoFiles()));
joachim99@81:       pActionMenu->addAction (pAction);
joachim99@81:    }
joachim99@81:    else if ( m_list.count() == 3 )
joachim99@81:    {
joachim99@81:       pAction = new KAction (i18n("3 way comparison"), actionCollection);
joachim99@81:       connect( pAction, SIGNAL(triggered(bool)), this, SLOT(slotCompareThreeFiles()));
joachim99@81:       pActionMenu->addAction (pAction);
joachim99@81:    }
joachim99@81:    pAction = new KAction (i18n("About KDiff3 menu plugin ..."), actionCollection);
joachim99@81:    connect( pAction, SIGNAL(triggered(bool)), this, SLOT(slotAbout()));
joachim99@81:    pActionMenu->addAction (pAction);
joachim99@81: 
joachim99@81:    pMenu->addSeparator();
joachim99@81:    pMenu->addAction( pActionMenu );
joachim99@81:    pMenu->addSeparator();
joachim99@81: }
joachim99@81: 
joachim99@81: KDiff3Plugin::~KDiff3Plugin ()
joachim99@81: {
joachim99@81: }
joachim99@81: 
joachim99@81: void KDiff3Plugin::slotCompareWith()
joachim99@81: {
joachim99@81:    if ( m_list.count() > 0 && s_pHistory && ! s_pHistory->empty() )
joachim99@81:    {
joachim99@81:       QStringList args;
joachim99@81:       args << s_pHistory->front();
joachim99@81:       args << m_list.front();
joachim99@81:       KProcess::execute("kdiff3", args);
joachim99@81:    }
joachim99@81: }
joachim99@81: 
joachim99@81: void KDiff3Plugin::slotCompareWithHistoryItem()
joachim99@81: {
joachim99@81:    const KAction* pAction = dynamic_cast<const KAction*>( sender() );
joachim99@81:    if ( m_list.count() > 0 && pAction )
joachim99@81:    {
joachim99@81:       QStringList args;
joachim99@81:       args << pAction->text();
joachim99@81:       args << m_list.front();
joachim99@81:       KProcess::execute ("kdiff3", args);
joachim99@81:    }
joachim99@81: }
joachim99@81: 
joachim99@81: void KDiff3Plugin::slotCompareTwoFiles()
joachim99@81: {
joachim99@81:    if ( m_list.count() == 2 )
joachim99@81:    {
joachim99@81:       QStringList args;
joachim99@81:       args << m_list.front();
joachim99@81:       args << m_list.back();
joachim99@81:       KProcess::execute ("kdiff3", args);
joachim99@81:    }
joachim99@81: }
joachim99@81: 
joachim99@81: void KDiff3Plugin::slotCompareThreeFiles()
joachim99@81: {
joachim99@81:    if ( m_list.count() == 3 )
joachim99@81:    {
joachim99@81:       QStringList args;
joachim99@81:       args << m_list[0];
joachim99@81:       args << m_list[1];
joachim99@81:       args << m_list[2];
joachim99@81:       KProcess::execute ("kdiff3", args);
joachim99@81:    }
joachim99@81: }
joachim99@81: 
joachim99@81: void KDiff3Plugin::slotMergeWith()
joachim99@81: {
joachim99@81:    if ( m_list.count() > 0 && s_pHistory && ! s_pHistory->empty() )
joachim99@81:    {
joachim99@81:       QStringList args;
joachim99@81:       args << s_pHistory->front();
joachim99@81:       args << m_list.front();
joachim99@81:       args << ( "-o" + m_list.front() );
joachim99@81:       KProcess::execute ("kdiff3", args);
joachim99@81:    }
joachim99@81: }
joachim99@81: 
joachim99@81: void KDiff3Plugin::slotMergeThreeWay()
joachim99@81: {
joachim99@81:    if ( m_list.count() > 0 && s_pHistory &&  s_pHistory->count()>=2 )
joachim99@81:    {
joachim99@81:       QStringList args;
joachim99@81:       args << (*s_pHistory)[1];
joachim99@81:       args << (*s_pHistory)[0];
joachim99@81:       args << m_list.front();
joachim99@81:       args << ("-o" + m_list.front());
joachim99@81:       KProcess::execute ("kdiff3", args);
joachim99@81:    }
joachim99@81: }
joachim99@81: 
joachim99@81: void KDiff3Plugin::slotSaveForLater()
joachim99@81: {
joachim99@81:    if ( !m_list.isEmpty() && s_pHistory )
joachim99@81:    {
joachim99@81:       while ( s_pHistory->count()>=10 )
joachim99@81:          s_pHistory->pop_back();
joachim99@81:       s_pHistory->push_front( m_list.front() );
joachim99@81:    }
joachim99@81: }
joachim99@81: 
joachim99@81: void KDiff3Plugin::slotClearList()
joachim99@81: {
joachim99@81:    if ( s_pHistory )
joachim99@81:       s_pHistory->clear();
joachim99@81: }
joachim99@81: 
joachim99@81: void KDiff3Plugin::slotAbout()
joachim99@81: {
joachim99@81:    QString s = i18n("KDiff3 Menu Plugin: Copyright (C) 2008 Joachim Eibl\n"
joachim99@81:                     "KDiff3 homepage: http://kdiff3.sourceforge.net\n\n");
joachim99@81:    s += i18n("Using the contextmenu extension:\n"
joachim99@81:              "For simple comparison of two selected files choose \"Compare\".\n"
joachim99@81:              "If the other file is somewhere else \"Save\" the first file for later. "
joachim99@81:              "It will appear in the \"Compare With ...\" submenu. "
joachim99@81:              "Then use \"Compare With\" on second file.\n"
joachim99@81:              "For a 3-way merge first \"Save\" the base file, then the branch to merge and "
joachim99@81:              "choose \"3-way merge with base\" on the other branch which will be used as destination.\n"
joachim99@81:              "Same also applies to directory comparison and merge.");
joachim99@81:    KMessageBox::information(m_pParentWidget, s, tr("About KDiff3 Menu Plugin") );
joachim99@81: }
joachim99@81: