pollymc/api/logic/minecraft/ModList.cpp

310 lines
6.4 KiB
C++

/* Copyright 2013-2015 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 "ModList.h"
#include <FileSystem.h>
#include <QMimeData>
#include <QUrl>
#include <QUuid>
#include <QString>
#include <QFileSystemWatcher>
#include <QDebug>
ModList::ModList(const QString &dir) : QAbstractListModel(), m_dir(dir)
{
FS::ensureFolderPathExists(m_dir.absolutePath());
m_dir.setFilter(QDir::Readable | QDir::NoDotAndDotDot | QDir::Files | QDir::Dirs |
QDir::NoSymLinks);
m_dir.setSorting(QDir::Name | QDir::IgnoreCase | QDir::LocaleAware);
m_watcher = new QFileSystemWatcher(this);
is_watching = false;
connect(m_watcher, SIGNAL(directoryChanged(QString)), this,
SLOT(directoryChanged(QString)));
}
void ModList::startWatching()
{
update();
is_watching = m_watcher->addPath(m_dir.absolutePath());
if (is_watching)
{
qDebug() << "Started watching " << m_dir.absolutePath();
}
else
{
qDebug() << "Failed to start watching " << m_dir.absolutePath();
}
}
void ModList::stopWatching()
{
is_watching = !m_watcher->removePath(m_dir.absolutePath());
if (!is_watching)
{
qDebug() << "Stopped watching " << m_dir.absolutePath();
}
else
{
qDebug() << "Failed to stop watching " << m_dir.absolutePath();
}
}
void ModList::internalSort(QList<Mod> &what)
{
auto predicate = [](const Mod &left, const Mod &right)
{
if (left.name() == right.name())
{
return left.mmc_id().localeAwareCompare(right.mmc_id()) < 0;
}
return left.name().localeAwareCompare(right.name()) < 0;
};
std::sort(what.begin(), what.end(), predicate);
}
bool ModList::update()
{
if (!isValid())
return false;
QList<Mod> orderedMods;
QList<Mod> newMods;
m_dir.refresh();
auto folderContents = m_dir.entryInfoList();
bool orderOrStateChanged = false;
// if there are any untracked files...
if (folderContents.size())
{
// the order surely changed!
for (auto entry : folderContents)
{
newMods.append(Mod(entry));
}
internalSort(newMods);
orderedMods.append(newMods);
orderOrStateChanged = true;
}
// otherwise, if we were already tracking some mods
else if (mods.size())
{
// if the number doesn't match, order changed.
if (mods.size() != orderedMods.size())
orderOrStateChanged = true;
// if it does match, compare the mods themselves
else
for (int i = 0; i < mods.size(); i++)
{
if (!mods[i].strongCompare(orderedMods[i]))
{
orderOrStateChanged = true;
break;
}
}
}
beginResetModel();
mods.swap(orderedMods);
endResetModel();
if (orderOrStateChanged)
{
emit changed();
}
return true;
}
void ModList::directoryChanged(QString path)
{
update();
}
bool ModList::isValid()
{
return m_dir.exists() && m_dir.isReadable();
}
bool ModList::installMod(const QString &filename)
{
// NOTE: fix for GH-1178: remove trailing slash to avoid issues with using the empty result of QFileInfo::fileName
QFileInfo fileinfo(FS::NormalizePath(filename));
qDebug() << "installing: " << fileinfo.absoluteFilePath();
if (!fileinfo.exists() || !fileinfo.isReadable())
{
return false;
}
Mod m(fileinfo);
if (!m.valid())
return false;
auto type = m.type();
if (type == Mod::MOD_UNKNOWN)
return false;
if (type == Mod::MOD_SINGLEFILE || type == Mod::MOD_ZIPFILE || type == Mod::MOD_LITEMOD)
{
QString newpath = FS::PathCombine(m_dir.path(), fileinfo.fileName());
if (!QFile::copy(fileinfo.filePath(), newpath))
return false;
m.repath(newpath);
update();
return true;
}
else if (type == Mod::MOD_FOLDER)
{
QString from = fileinfo.filePath();
QString to = FS::PathCombine(m_dir.path(), fileinfo.fileName());
if (!FS::copy(from, to)())
return false;
m.repath(to);
update();
return true;
}
return false;
}
bool ModList::deleteMod(int index)
{
if (index >= mods.size() || index < 0)
return false;
Mod &m = mods[index];
if (m.destroy())
{
emit changed();
return true;
}
return false;
}
bool ModList::deleteMods(int first, int last)
{
for (int i = first; i <= last; i++)
{
Mod &m = mods[i];
m.destroy();
}
emit changed();
return true;
}
int ModList::columnCount(const QModelIndex &parent) const
{
return 3;
}
QVariant ModList::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
int row = index.row();
int column = index.column();
if (row < 0 || row >= mods.size())
return QVariant();
switch (role)
{
case Qt::DisplayRole:
switch (column)
{
case NameColumn:
return mods[row].name();
case VersionColumn:
return mods[row].version();
default:
return QVariant();
}
case Qt::ToolTipRole:
return mods[row].mmc_id();
case Qt::CheckStateRole:
switch (column)
{
case ActiveColumn:
return mods[row].enabled() ? Qt::Checked : Qt::Unchecked;
default:
return QVariant();
}
default:
return QVariant();
}
}
bool ModList::setData(const QModelIndex &index, const QVariant &value, int role)
{
if (index.row() < 0 || index.row() >= rowCount(index) || !index.isValid())
{
return false;
}
if (role == Qt::CheckStateRole)
{
auto &mod = mods[index.row()];
if (mod.enable(!mod.enabled()))
{
emit dataChanged(index, index);
return true;
}
}
return false;
}
QVariant ModList::headerData(int section, Qt::Orientation orientation, int role) const
{
switch (role)
{
case Qt::DisplayRole:
switch (section)
{
case ActiveColumn:
return QString();
case NameColumn:
return tr("Name");
case VersionColumn:
return tr("Version");
default:
return QVariant();
}
case Qt::ToolTipRole:
switch (section)
{
case ActiveColumn:
return tr("Is the mod enabled?");
case NameColumn:
return tr("The name of the mod.");
case VersionColumn:
return tr("The version of the mod.");
default:
return QVariant();
}
default:
return QVariant();
}
return QVariant();
}
Qt::ItemFlags ModList::flags(const QModelIndex &index) const
{
Qt::ItemFlags defaultFlags = QAbstractListModel::flags(index);
if (index.isValid())
return Qt::ItemIsUserCheckable | defaultFlags;
else
return defaultFlags;
}