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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#ifndef SNIPPETSCOLLECTION_H
#define SNIPPETSCOLLECTION_H
#include "snippet.h"
#include <QVector>
#include <QStringList>
#include <QHash>
#include <QXmlStreamWriter>
namespace TextEditor {
namespace Internal {
// Characteristics of this collection:
// - Store snippets by group.
// - Keep groups of snippets sorted.
// - Allow snippet insertion/replacement based on a hint.
// - Allow modification of snippet members that are not sorting keys.
// - Track removed/modified built-in snippets.
// - Provide fast index access.
// - Not thread-safe.
class SnippetsCollection : public QObject
{
Q_OBJECT
public:
virtual ~SnippetsCollection();
static SnippetsCollection *instance();
class Hint
{
friend class SnippetsCollection;
public:
int index() const;
private:
explicit Hint(int index);
Hint(int index, QList<Snippet>::iterator it);
int m_index;
QList<Snippet>::iterator m_it;
};
void insertSnippet(const Snippet &snippet);
void insertSnippet(const Snippet &snippet, const Hint &hint);
Hint computeInsertionHint(const Snippet &snippet);
// Replace snippets only within the same group.
void replaceSnippet(int index, const Snippet &snippet);
void replaceSnippet(int index, const Snippet &snippet, const Hint &hint);
Hint computeReplacementHint(int index, const Snippet &snippet);
void removeSnippet(int index, const QString &groupId);
void restoreRemovedSnippets(const QString &groupId);
void setSnippetContent(int index, const QString &groupId, const QString &content);
const Snippet &snippet(int index, const QString &groupId) const;
Snippet revertedSnippet(int index, const QString &groupId) const;
void reset(const QString &groupId);
int totalActiveSnippets(const QString &groupId) const;
int totalSnippets(const QString &groupId) const;
QList<QString> groupIds() const;
void reload();
bool synchronize(QString *errorString);
private slots:
void identifyGroups();
private:
SnippetsCollection();
int groupIndex(const QString &groupId) const;
bool isGroupKnown(const QString &groupId) const;
void clearSnippets();
void clearSnippets(int groupIndex);
void updateActiveSnippetsEnd(int groupIndex);
QList<Snippet> readXML(const QString &fileName, const QString &snippetId = QString()) const;
void writeSnippetXML(const Snippet &snippet, QXmlStreamWriter *writer) const;
QList<Snippet> allBuiltInSnippets() const;
static const QLatin1String kSnippet;
static const QLatin1String kSnippets;
static const QLatin1String kTrigger;
static const QLatin1String kId;
static const QLatin1String kComplement;
static const QLatin1String kGroup;
static const QLatin1String kRemoved;
static const QLatin1String kModified;
// Built-in snippets are specified in XMLs distributed in a system's folder. Snippets
// created or modified/removed (if they are built-ins) by the user are stored in user's
// folder.
QString m_userSnippetsPath;
QString m_userSnippetsFile;
QStringList m_builtInSnippetsFiles;
// Snippets for each group are kept in a list. However, not all of them are necessarily
// active. Specifically, removed built-in snippets are kept as the last ones (for each
// group there is a iterator that marks the logical end).
QVector<QList<Snippet> > m_snippets;
QVector<QList<Snippet>::iterator> m_activeSnippetsEnd;
QHash<QString, int> m_groupIndexById;
};
} // Internal
} // TextEditor
#endif // SNIPPETSCOLLECTION_H
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