100 lines
3.4 KiB
C++
100 lines
3.4 KiB
C++
/*
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* Copyright (C) 2006 Aaron Seigo <aseigo@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License version 2 as
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* published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef RUNNER_H
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#define RUNNER_H
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#include <QObject>
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#include <QList>
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#include <kdemacros.h>
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class KActionCollection;
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class KDE_EXPORT Runner : public QObject
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{
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Q_OBJECT
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public:
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typedef QList<Runner*> List;
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explicit Runner( QObject* parent = 0 );
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virtual ~Runner();
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/**
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* If the runner can run precisely this term, return a QAction, else
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* return 0. The first runner that returns a QAction will be the
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* default runner. Other runner's actions will be suggested in the
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* interface. Non-exact matches should be offered via findMatches.
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*/
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virtual QAction* accepts( const QString& term ) = 0;
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/**
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* If the runner has options that the user can interact with to modify
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* what happens when exec or one of the actions created in fillMatches
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* is called, the runner should return true
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*/
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virtual bool hasOptions( );
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/**
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* If the hasOptions() returns true, this method will be called to get
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* the widget displaying the options the user can interact with.
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*/
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virtual QWidget* options( );
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/**
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* Take action on the command. What this means is dependant on the
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* particular runner implementation, e.g. some runners may treat
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* command as a shell command, while others may treat it as an
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* equation or a user name or ...
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*/
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virtual bool exec( const QString& command ) = 0;
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KActionCollection* matches( const QString& term, int max, int offset );
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signals:
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/**
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* When emitted, the interface will update itself to show the new
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* matches. This is meant to be used by asynchronous runners that will
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* only be able to start a query on fillMatches being called with
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* response (and therefore matches) coming later
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*/
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void matchesUpdated( KActionCollection* matches );
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protected:
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/**
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* This method is called when there is text input to match. The runner
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* should fill the matches action collection with one action per match
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* to a maximium of max matches starting at offset in the data set
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*/
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virtual void fillMatches( KActionCollection* matches,
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const QString& term,
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int max, int offset );
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private:
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class Private;
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Private* d;
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};
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#define K_EXPORT_KRUNNER_RUNNER( libname, classname ) \
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K_EXPORT_COMPONENT_FACTORY( \
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krunner_##libname, \
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KGenericFactory<classname>("krunner_" #libname) )
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#endif
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