kde-extraapps/kdevplatform/language/assistant/staticassistant.h
2015-07-26 14:23:17 +03:00

94 lines
2.9 KiB
C++

/*
* Copyright 2014 Kevin Funk <kfunk@kde.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License or (at your option) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* 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 General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef KDEVPLATFORM_STATICASSISTANT_H
#define KDEVPLATFORM_STATICASSISTANT_H
#include <language/languageexport.h>
#include <interfaces/iassistant.h>
namespace KTextEditor {
class Document;
class View;
class Range;
}
namespace KDevelop {
class ILanguageSupport;
/**
* @brief This class serves as a base for long-living assistants
*
* Normally, an assistant only lives for a short time, and is indirectly owned by a KDevelop::Problem.
* Static assistants are owned by the language support plugins and exist as long as the language plugin is loaded.
* They are not created by KDevelop::Problem instances, instead, they check for problematic code for themselves,
* by tracking document changes via the textChanged() method.
*
* Note that static assistants are not bound to a single document/view.
* Instead the current document/view we're looking at is passed via the textChanged() method.
*
* Register instances of this class view StaticAssistantsManager::registerAssistant
*
* @sa textChanged()
* @sa StaticAssistantsManager::registerAssistant
*/
class KDEVPLATFORMLANGUAGE_EXPORT StaticAssistant : public IAssistant
{
Q_OBJECT
public:
using Ptr = KSharedPtr<StaticAssistant>;
StaticAssistant(ILanguageSupport* supportedLanguage);
virtual ~StaticAssistant();
/**
* Language this static assistant supports
*
* textChanged() will only be called for documents with language equal to this assistant's language
* @sa textChanged(0)
*/
ILanguageSupport* supportedLanguage() const;
/**
* Invoked whenever text inside a view was changed by the user
*
* Reimplement in subclass
*/
virtual void textChanged(KTextEditor::View* view, const KTextEditor::Range& invocationRange,
const QString& removedText = QString()) = 0;
/**
* Whether it's worth showing this assistant to the user
*
* Reimplement in subclass
*/
virtual bool isUseful() const = 0;
private:
struct Private;
QScopedPointer<Private> const d;
};
}
#endif // KDEVPLATFORM_STATICASSISTANT_H