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/* Copyright 2013-2019 MultiMC Contributors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <QObject>
#include <QAbstractListModel>
#include <QSet>
#include <QList>
#include "BaseInstance.h"
#include "multimc_logic_export.h"
#include "QObjectPtr.h"
class QFileSystemWatcher;
class InstanceTask;
using InstanceId = QString;
using GroupId = QString;
using InstanceLocator = std::pair<InstancePtr, int>;
enum class InstCreateError
{
NoCreateError = 0,
NoSuchVersion,
UnknownCreateError,
InstExists,
CantCreateDir
};
enum class GroupsState
{
NotLoaded,
Steady,
Dirty
};
class MULTIMC_LOGIC_EXPORT InstanceList : public QAbstractListModel
{
Q_OBJECT
public:
explicit InstanceList(SettingsObjectPtr settings, const QString & instDir, QObject *parent = 0);
virtual ~InstanceList();
public:
QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const override;
int rowCount(const QModelIndex &parent = QModelIndex()) const override;
QVariant data(const QModelIndex &index, int role) const override;
Qt::ItemFlags flags(const QModelIndex &index) const override;
bool setData(const QModelIndex & index, const QVariant & value, int role) override;
enum AdditionalRoles
{
GroupRole = Qt::UserRole,
InstancePointerRole = 0x34B1CB48, ///< Return pointer to real instance
InstanceIDRole = 0x34B1CB49 ///< Return id if the instance
};
/*!
* \brief Error codes returned by functions in the InstanceList class.
* NoError Indicates that no error occurred.
* UnknownError indicates that an unspecified error occurred.
*/
enum InstListError
{
NoError = 0,
UnknownError
};
InstancePtr at(int i) const
{
return m_instances.at(i);
}
int count() const
{
return m_instances.count();
}
InstListError loadList();
void saveNow();
InstancePtr getInstanceById(QString id) const;
QModelIndex getInstanceIndexById(const QString &id) const;
QStringList getGroups();
GroupId getInstanceGroup(const InstanceId & id) const;
void setInstanceGroup(const InstanceId & id, const GroupId& name);
void deleteGroup(const GroupId & name);
void deleteInstance(const InstanceId & id);
// Wrap an instance creation task in some more task machinery and make it ready to be used
Task * wrapInstanceTask(InstanceTask * task);
/**
* Create a new empty staging area for instance creation and @return a path/key top commit it later.
* Used by instance manipulation tasks.
*/
QString getStagedInstancePath();
/**
* Commit the staging area given by @keyPath to the provider - used when creation succeeds.
* Used by instance manipulation tasks.
*/
bool commitStagedInstance(const QString & keyPath, const QString& instanceName, const QString & groupName);
/**
* Destroy a previously created staging area given by @keyPath - used when creation fails.
* Used by instance manipulation tasks.
*/
bool destroyStagingPath(const QString & keyPath);
signals:
void dataIsInvalid();
void instancesChanged();
void instanceSelectRequest(QString instanceId);
void groupsChanged(QSet<QString> groups);
public slots:
void on_InstFolderChanged(const Setting &setting, QVariant value);
private slots:
void propertiesChanged(BaseInstance *inst);
void providerUpdated();
void instanceDirContentsChanged(const QString &path);
private:
int getInstIndex(BaseInstance *inst) const;
void suspendWatch();
void resumeWatch();
void add(const QList<InstancePtr> &list);
void loadGroupList();
void saveGroupList();
QList<InstanceId> discoverInstances();
InstancePtr loadInstance(const InstanceId& id);
private:
int m_watchLevel = 0;
bool m_dirty = false;
QList<InstancePtr> m_instances;
QSet<QString> m_groups;
SettingsObjectPtr m_globalSettings;
QString m_instDir;
QFileSystemWatcher * m_watcher;
QMap<InstanceId, GroupId> m_groupMap;
QSet<InstanceId> instanceSet;
bool m_groupsLoaded = false;
bool m_instancesProbed = false;
};
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