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#ifndef SEARCHENGINE_H
#define SEARCHENGINE_H
#include <qobject.h>
#include <qptrlist.h>
#include <qstring.h>
#include <kpixmap.h>
#include <kio/job.h>
#include "docentrytraverser.h"
class QWidget;
class KProcess;
class KConfig;
class KHTMLPart;
namespace KHC {
class Formatter;
class SearchEngine;
class View;
class SearchHandler;
class SearchTraverser : public QObject, public DocEntryTraverser
{
Q_OBJECT
public:
SearchTraverser( SearchEngine *engine, int level );
~SearchTraverser();
void process( DocEntry * );
void startProcess( DocEntry * );
DocEntryTraverser *createChild( DocEntry * );
DocEntryTraverser *parentTraverser();
void deleteTraverser();
void finishTraversal();
protected:
void connectHandler( SearchHandler *handler );
void disconnectHandler( SearchHandler *handler );
protected slots:
void showSearchResult( SearchHandler *, DocEntry *, const QString &result );
void showSearchError( SearchHandler *, DocEntry *, const QString &error );
private:
const int mMaxLevel;
SearchEngine *mEngine;
int mLevel;
DocEntry *mEntry;
QString mJobData;
QString mResult;
QMap<SearchHandler *, int> mConnectCount;
};
class SearchEngine : public QObject
{
Q_OBJECT
public:
enum Operation { And, Or };
SearchEngine( View * );
~SearchEngine();
bool initSearchHandlers();
bool search( QString words, QString method = "and", int matches = 5,
QString scope = "" );
Formatter *formatter() const;
View *view() const;
QString substituteSearchQuery( const QString &query );
static QString substituteSearchQuery( const QString &query,
const QString &identifier, const QStringList &words, int maxResults,
Operation operation, const QString &lang );
void finishSearch();
/**
Append error message to error log.
*/
void logError( DocEntry *entry, const QString &msg );
/**
Return error log.
*/
QString errorLog() const;
bool isRunning() const;
SearchHandler *handler( const QString &documentType ) const;
QStringList words() const;
int maxResults() const;
Operation operation() const;
bool canSearch( DocEntry * );
bool needsIndex( DocEntry * );
signals:
void searchFinished();
protected slots:
void searchStdout(KProcess *proc, char *buffer, int buflen);
void searchStderr(KProcess *proc, char *buffer, int buflen);
void searchExited(KProcess *proc);
protected:
void processSearchQueue();
private:
KProcess *mProc;
bool mSearchRunning;
QString mSearchResult;
QString mStderr;
View *mView;
QString mWords;
int mMatches;
QString mMethod;
QString mLang;
QString mScope;
QStringList mWordList;
int mMaxResults;
Operation mOperation;
DocEntryTraverser *mRootTraverser;
QMap<QString, SearchHandler *> mHandlers;
};
}
#endif
// vim:ts=2:sw=2:et
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