plasma-framework/runnermanager.h

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/*
* Copyright (C) 2006 Aaron Seigo <aseigo@kde.org>
* Copyright (C) 2007 Ryan P. Bitanga <ryan.bitanga@gmail.com>
* Copyright (C) 2008 Jordi Polo <mumismo@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef PLASMA_RUNNERMANAGER_H
#define PLASMA_RUNNERMANAGER_H
#include <QtCore/QList>
#include <QtCore/QObject>
#include <plasma/plasma_export.h>
#include "abstractrunner.h"
class QAction;
class KConfigGroup;
namespace Plasma
{
class QueryMatch;
class AbstractRunner;
class RunnerContext;
class RunnerManagerPrivate;
/**
* @class RunnerManager plasma/runnermanager.h <Plasma/RunnerManager>
*
* @short The RunnerManager class decides what installed runners are runnable,
* and their ratings. It is the main proxy to the runners.
*/
class PLASMA_EXPORT RunnerManager : public QObject
{
Q_OBJECT
public:
explicit RunnerManager(QObject *parent=0);
explicit RunnerManager(KConfigGroup &config, QObject *parent=0);
~RunnerManager();
/**
* Finds and returns a loaded runner or NULL
* @arg name the name of the runner
* @return Pointer to the runner
*/
AbstractRunner *runner(const QString &name) const;
/**
* @return the currently active "single mode" runner, or null if none
* @since 4.4
*/
AbstractRunner *singleModeRunner() const;
/**
* Puts the manager into "single runner" mode using the given
* runner; if the runner does not exist or can not be loaded then
* the single runner mode will not be started and singleModeRunner()
* will return NULL
* @arg id the id of the runner to use
* @since 4.4
*/
void setSingleModeRunnerId(const QString &id);
/**
* @return the id of the runner to use in single mode
* @since 4.4
*/
QString singleModeRunnerId() const;
/**
* @return true if the manager is set to run in single runner mode
* @since 4.4
*/
bool singleMode() const;
/**
* Sets whether or not the manager is in single mode.
*
* @arg singleMode true if the manager should be in single mode, false otherwise
* @since 4.4
*/
void setSingleMode(bool singleMode);
/**
* Returns the translated name of a runner
* @arg id the id of the runner
*
* @since 4.4
*/
QString runnerName(const QString &id) const;
/**
* @return the list of all currently loaded runners
*/
QList<AbstractRunner *> runners() const;
/**
* @return the names of all runners that advertise single query mode
* @since 4.4
*/
QStringList singleModeAdvertisedRunnerIds() const;
/**
* Retrieves the current context
* @return pointer to the current context
*/
RunnerContext *searchContext() const;
/**
* Retrieves all available matches found so far for the previously launched query
* @return List of matches
*/
QList<QueryMatch> matches() const;
/**
* Runs a given match
* @arg match the match to be executed
*/
void run(const QueryMatch &match);
/**
* Runs a given match
* @arg id the id of the match to run
*/
void run(const QString &id);
/**
* Retrieves the list of actions, if any, for a match
*/
QList<QAction*> actionsForMatch(const QueryMatch &match);
/**
* @return the current query term
*/
QString query() const;
/**
* Causes a reload of the current configuration
*/
void reloadConfiguration();
/**
* Sets a whitelist for the plugins that can be loaded
*
* @arg plugins the plugin names of allowed runners
* @since 4.4
*/
void setAllowedRunners(const QStringList &runners);
/**
* @return the list of allowed plugins
* @since 4.4
*/
QStringList allowedRunners() const;
/**
* @return mime data of the specified match
* @since 4.5
*/
QMimeData * mimeDataForMatch(const QueryMatch &match) const;
/**
* @return mime data of the specified match
* @since 4.5
*/
QMimeData * mimeDataForMatch(const QString &id) const;
public Q_SLOTS:
/**
* Call this method when the runners should be prepared for a query session.
* Call matchSessionComplete when the query session is finished for the time
* being.
* @since 4.4
* @see matchSessionComplete
*/
void setupMatchSession();
/**
* Call this method when the query session is finished for the time
* being.
* @since 4.4
* @see prepareForMatchSession
*/
void matchSessionComplete();
/**
* Launch a query, this will create threads and return inmediately.
* When the information will be available can be known using the
* matchesChanged signal.
*
* @arg term the term we want to find matches for
* @arg runnerId optional, if only one specific runner is to be used;
* providing an id will put the manager into single runner mode
*/
void launchQuery(const QString &term, const QString &runnerId);
/**
* Convenience version of above
*/
void launchQuery(const QString &term);
/**
* Execute a query, this method will only return when the query is executed
* This means that the method may be dangerous as it wait a variable amount
* of time for the runner to finish.
* The runner parameter is mandatory, to avoid launching unwanted runners.
* @arg term the term we want to find matches for
* @arg runner the runner we will use, it is mandatory
* @return 0 if nothing was launched, 1 if launched.
*/
bool execQuery(const QString &term, const QString &runnerName);
/**
* Convenience version of above
*/
bool execQuery(const QString &term);
/**
* Reset the current data and stops the query
*/
void reset();
Q_SIGNALS:
/**
* Emitted each time a new match is added to the list
*/
void matchesChanged(const QList<Plasma::QueryMatch> &matches);
/**
* Emitted when the launchQuery finish
* @since 4.5
*/
void queryFinished();
private:
Q_PRIVATE_SLOT(d, void scheduleMatchesChanged())
Q_PRIVATE_SLOT(d, void matchesChanged())
Q_PRIVATE_SLOT(d, void jobDone(ThreadWeaver::Job*))
Q_PRIVATE_SLOT(d, void unblockJobs())
RunnerManagerPrivate * const d;
friend class RunnerManagerPrivate;
};
}
#endif