PrismLauncher/logic/lists/InstanceList.cpp
2013-10-06 01:13:40 +02:00

423 lines
10 KiB
C++

/* Copyright 2013 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.
*/
#include <QDir>
#include <QSet>
#include <QFile>
#include <QDirIterator>
#include <QThread>
#include <QTextStream>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <pathutils.h>
#include "MultiMC.h"
#include "logic/lists/InstanceList.h"
#include "logic/lists/IconList.h"
#include "logic/BaseInstance.h"
#include "logic/InstanceFactory.h"
#include <logger/QsLog.h>
const static int GROUP_FILE_FORMAT_VERSION = 1;
InstanceList::InstanceList(const QString &instDir, QObject *parent)
: QAbstractListModel(parent), m_instDir("instances")
{
}
InstanceList::~InstanceList()
{
saveGroupList();
}
int InstanceList::rowCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
return m_instances.count();
}
QModelIndex InstanceList::index(int row, int column, const QModelIndex &parent) const
{
Q_UNUSED(parent);
if (row < 0 || row >= m_instances.size())
return QModelIndex();
return createIndex(row, column, (void *)m_instances.at(row).get());
}
QVariant InstanceList::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
{
return QVariant();
}
BaseInstance *pdata = static_cast<BaseInstance *>(index.internalPointer());
switch (role)
{
case InstancePointerRole:
{
QVariant v = qVariantFromValue((void *)pdata);
return v;
}
case Qt::DisplayRole:
{
return pdata->name();
}
case Qt::ToolTipRole:
{
return pdata->instanceRoot();
}
case Qt::DecorationRole:
{
QString key = pdata->iconKey();
return MMC->icons()->getIcon(key);
}
// for now.
case KCategorizedSortFilterProxyModel::CategorySortRole:
case KCategorizedSortFilterProxyModel::CategoryDisplayRole:
{
return pdata->group();
}
default:
break;
}
return QVariant();
}
Qt::ItemFlags InstanceList::flags(const QModelIndex &index) const
{
Qt::ItemFlags f;
if (index.isValid())
{
f |= (Qt::ItemIsEnabled | Qt::ItemIsSelectable);
}
return f;
}
void InstanceList::groupChanged()
{
// save the groups. save all of them.
saveGroupList();
}
void InstanceList::saveGroupList()
{
QString groupFileName = m_instDir + "/instgroups.json";
QFile groupFile(groupFileName);
// if you can't open the file, fail
if (!groupFile.open(QIODevice::WriteOnly | QIODevice::Truncate))
{
// An error occurred. Ignore it.
QLOG_ERROR() << "Failed to read instance group file.";
return;
}
QTextStream out(&groupFile);
QMap<QString, QSet<QString>> groupMap;
for (auto instance : m_instances)
{
QString id = instance->id();
QString group = instance->group();
if (group.isEmpty())
continue;
if (!groupMap.count(group))
{
QSet<QString> set;
set.insert(id);
groupMap[group] = set;
}
else
{
QSet<QString> &set = groupMap[group];
set.insert(id);
}
}
QJsonObject toplevel;
toplevel.insert("formatVersion", QJsonValue(QString("1")));
QJsonObject groupsArr;
for (auto iter = groupMap.begin(); iter != groupMap.end(); iter++)
{
auto list = iter.value();
auto name = iter.key();
QJsonObject groupObj;
QJsonArray instanceArr;
groupObj.insert("hidden", QJsonValue(QString("false")));
for (auto item : list)
{
instanceArr.append(QJsonValue(item));
}
groupObj.insert("instances", instanceArr);
groupsArr.insert(name, groupObj);
}
toplevel.insert("groups", groupsArr);
QJsonDocument doc(toplevel);
groupFile.write(doc.toJson());
groupFile.close();
}
void InstanceList::loadGroupList(QMap<QString, QString> &groupMap)
{
QString groupFileName = m_instDir + "/instgroups.json";
// if there's no group file, fail
if (!QFileInfo(groupFileName).exists())
return;
QFile groupFile(groupFileName);
// if you can't open the file, fail
if (!groupFile.open(QIODevice::ReadOnly))
{
// An error occurred. Ignore it.
QLOG_ERROR() << "Failed to read instance group file.";
return;
}
QTextStream in(&groupFile);
QString jsonStr = in.readAll();
groupFile.close();
QJsonParseError error;
QJsonDocument jsonDoc = QJsonDocument::fromJson(jsonStr.toUtf8(), &error);
// if the json was bad, fail
if (error.error != QJsonParseError::NoError)
{
QLOG_ERROR() << QString("Failed to parse instance group file: %1 at offset %2")
.arg(error.errorString(), QString::number(error.offset))
.toUtf8();
return;
}
// if the root of the json wasn't an object, fail
if (!jsonDoc.isObject())
{
qWarning("Invalid group file. Root entry should be an object.");
return;
}
QJsonObject rootObj = jsonDoc.object();
// Make sure the format version matches, otherwise fail.
if (rootObj.value("formatVersion").toVariant().toInt() != GROUP_FILE_FORMAT_VERSION)
return;
// Get the groups. if it's not an object, fail
if (!rootObj.value("groups").isObject())
{
qWarning("Invalid group list JSON: 'groups' should be an object.");
return;
}
// Iterate through all the groups.
QJsonObject groupMapping = rootObj.value("groups").toObject();
for (QJsonObject::iterator iter = groupMapping.begin(); iter != groupMapping.end(); iter++)
{
QString groupName = iter.key();
// If not an object, complain and skip to the next one.
if (!iter.value().isObject())
{
qWarning(QString("Group '%1' in the group list should "
"be an object.")
.arg(groupName)
.toUtf8());
continue;
}
QJsonObject groupObj = iter.value().toObject();
if (!groupObj.value("instances").isArray())
{
qWarning(QString("Group '%1' in the group list is invalid. "
"It should contain an array "
"called 'instances'.")
.arg(groupName)
.toUtf8());
continue;
}
// Iterate through the list of instances in the group.
QJsonArray instancesArray = groupObj.value("instances").toArray();
for (QJsonArray::iterator iter2 = instancesArray.begin(); iter2 != instancesArray.end();
iter2++)
{
groupMap[(*iter2).toString()] = groupName;
}
}
}
InstanceList::InstListError InstanceList::loadList()
{
// load the instance groups
QMap<QString, QString> groupMap;
loadGroupList(groupMap);
beginResetModel();
m_instances.clear();
QDir dir(m_instDir);
QDirIterator iter(dir);
while (iter.hasNext())
{
QString subDir = iter.next();
if (!QFileInfo(PathCombine(subDir, "instance.cfg")).exists())
continue;
BaseInstance *instPtr = NULL;
auto &loader = InstanceFactory::get();
auto error = loader.loadInstance(instPtr, subDir);
switch (error)
{
case InstanceFactory::NoLoadError:
break;
case InstanceFactory::NotAnInstance:
break;
}
if (error != InstanceFactory::NoLoadError && error != InstanceFactory::NotAnInstance)
{
QString errorMsg = QString("Failed to load instance %1: ")
.arg(QFileInfo(subDir).baseName())
.toUtf8();
switch (error)
{
default:
errorMsg += QString("Unknown instance loader error %1").arg(error);
break;
}
QLOG_ERROR() << errorMsg.toUtf8();
}
else if (!instPtr)
{
QLOG_ERROR() << QString("Error loading instance %1. Instance loader returned null.")
.arg(QFileInfo(subDir).baseName())
.toUtf8();
}
else
{
std::shared_ptr<BaseInstance> inst(instPtr);
auto iter = groupMap.find(inst->id());
if (iter != groupMap.end())
{
inst->setGroupInitial((*iter));
}
QLOG_INFO() << QString("Loaded instance %1").arg(inst->name()).toUtf8();
inst->setParent(this);
m_instances.append(inst);
connect(instPtr, SIGNAL(propertiesChanged(BaseInstance *)), this,
SLOT(propertiesChanged(BaseInstance *)));
connect(instPtr, SIGNAL(groupChanged()), this, SLOT(groupChanged()));
connect(instPtr, SIGNAL(nuked(BaseInstance *)), this,
SLOT(instanceNuked(BaseInstance *)));
}
}
endResetModel();
emit dataIsInvalid();
return NoError;
}
/// Clear all instances. Triggers notifications.
void InstanceList::clear()
{
beginResetModel();
saveGroupList();
m_instances.clear();
endResetModel();
emit dataIsInvalid();
}
;
/// Add an instance. Triggers notifications, returns the new index
int InstanceList::add(InstancePtr t)
{
beginInsertRows(QModelIndex(), m_instances.size(), m_instances.size());
m_instances.append(t);
t->setParent(this);
connect(t.get(), SIGNAL(propertiesChanged(BaseInstance *)), this,
SLOT(propertiesChanged(BaseInstance *)));
connect(t.get(), SIGNAL(groupChanged()), this, SLOT(groupChanged()));
connect(t.get(), SIGNAL(nuked(BaseInstance *)), this, SLOT(instanceNuked(BaseInstance *)));
endInsertRows();
return count() - 1;
}
InstancePtr InstanceList::getInstanceById(QString instId)
{
QListIterator<InstancePtr> iter(m_instances);
InstancePtr inst;
while (iter.hasNext())
{
inst = iter.next();
if (inst->id() == instId)
break;
}
if (inst->id() != instId)
return InstancePtr();
else
return iter.peekPrevious();
}
int InstanceList::getInstIndex(BaseInstance *inst)
{
for (int i = 0; i < m_instances.count(); i++)
{
if (inst == m_instances[i].get())
{
return i;
}
}
return -1;
}
void InstanceList::instanceNuked(BaseInstance *inst)
{
int i = getInstIndex(inst);
if (i != -1)
{
beginRemoveRows(QModelIndex(), i, i);
m_instances.removeAt(i);
endRemoveRows();
}
}
void InstanceList::propertiesChanged(BaseInstance *inst)
{
int i = getInstIndex(inst);
if (i != -1)
{
emit dataChanged(index(i), index(i));
}
}
InstanceProxyModel::InstanceProxyModel(QObject *parent)
: KCategorizedSortFilterProxyModel(parent)
{
// disable since by default we are globally sorting by date:
setCategorizedModel(true);
}
bool InstanceProxyModel::subSortLessThan(const QModelIndex &left,
const QModelIndex &right) const
{
BaseInstance *pdataLeft = static_cast<BaseInstance *>(left.internalPointer());
BaseInstance *pdataRight = static_cast<BaseInstance *>(right.internalPointer());
// kDebug() << *pdataLeft << *pdataRight;
return QString::localeAwareCompare(pdataLeft->name(), pdataRight->name()) < 0;
// return pdataLeft->name() < pdataRight->name();
}