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tdebase/khelpcenter/searchengine.h

152 lines
3.0 KiB

#ifndef SEARCHENGINE_H
#define SEARCHENGINE_H
#include <tqobject.h>
#include <tqptrlist.h>
#include <tqstring.h>
#include <kpixmap.h>
#include <kio/job.h>
#include "docentrytraverser.h"
class TQWidget;
class KProcess;
class KConfig;
class KHTMLPart;
namespace KHC {
class Formatter;
class SearchEngine;
class View;
class SearchHandler;
class SearchTraverser : public TQObject, 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 TQString &result );
void showSearchError( SearchHandler *, DocEntry *, const TQString &error );
private:
const int mMaxLevel;
SearchEngine *mEngine;
int mLevel;
DocEntry *mEntry;
TQString mJobData;
TQString mResult;
TQMap<SearchHandler *, int> mConnectCount;
};
class SearchEngine : public QObject
{
Q_OBJECT
public:
enum Operation { And, Or };
SearchEngine( View * );
~SearchEngine();
bool initSearchHandlers();
bool search( TQString words, TQString method = "and", int matches = 5,
TQString scope = "" );
Formatter *formatter() const;
View *view() const;
TQString substituteSearchQuery( const TQString &query );
static TQString substituteSearchQuery( const TQString &query,
const TQString &identifier, const TQStringList &words, int maxResults,
Operation operation, const TQString &lang );
void finishSearch();
/**
Append error message to error log.
*/
void logError( DocEntry *entry, const TQString &msg );
/**
Return error log.
*/
TQString errorLog() const;
bool isRunning() const;
SearchHandler *handler( const TQString &documentType ) const;
TQStringList 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;
TQString mSearchResult;
TQString mStderr;
View *mView;
TQString mWords;
int mMatches;
TQString mMethod;
TQString mLang;
TQString mScope;
TQStringList mWordList;
int mMaxResults;
Operation mOperation;
DocEntryTraverser *mRootTraverser;
TQMap<TQString, SearchHandler *> mHandlers;
};
}
#endif
// vim:ts=2:sw=2:et