1 files changed, 151 insertions, 0 deletions
diff --git a/khelpcenter/searchengine.h b/khelpcenter/searchengine.h
new file mode 100644
index 000000000..1528fe6d0
--- /dev/null
+++ b/khelpcenter/searchengine.h
@@ -0,0 +1,151 @@
+#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