sneedmc/logic/ModList.cpp
2013-10-06 01:13:40 +02:00

483 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 "ModList.h"
#include "LegacyInstance.h"
#include <pathutils.h>
#include <QMimeData>
#include <QUrl>
#include <QUuid>
#include <QFileSystemWatcher>
#include <logger/QsLog.h>
ModList::ModList ( const QString& dir, const QString& list_file )
: QAbstractListModel(), m_dir(dir), m_list_file(list_file)
{
m_dir.setFilter(QDir::Readable | QDir::NoDotAndDotDot | QDir::Files | QDir::Dirs | QDir::NoSymLinks);
m_dir.setSorting(QDir::Name);
m_list_id = QUuid::createUuid().toString();
m_watcher = new QFileSystemWatcher(this);
is_watching = false;
connect(m_watcher,SIGNAL(directoryChanged(QString)), this, SLOT(directoryChanged(QString)));
update();
}
void ModList::startWatching()
{
is_watching = m_watcher->addPath(m_dir.absolutePath());
if(is_watching)
QLOG_INFO() << "Started watching " << m_dir.absolutePath();
else
QLOG_INFO() << "Failed to start watching " << m_dir.absolutePath();
}
void ModList::stopWatching()
{
is_watching = !m_watcher->removePath(m_dir.absolutePath());
if(!is_watching)
QLOG_INFO() << "Stopped watching " << m_dir.absolutePath();
else
QLOG_INFO() << "Failed to stop watching " << m_dir.absolutePath();
}
bool ModList::update()
{
if (!isValid())
return false;
QList<Mod> newMods;
m_dir.refresh();
auto folderContents = m_dir.entryInfoList();
bool orderWasInvalid = false;
// first, process the ordered items (if any)
int currentOrderIndex = 0;
QStringList listOrder = readListFile();
for(auto item: listOrder)
{
QFileInfo info (m_dir.filePath(item));
int idx = folderContents.indexOf(info);
// if the file from the index file exists
if(idx != -1)
{
// remove from the actual folder contents list
folderContents.takeAt(idx);
// append the new mod
newMods.append(Mod(info));
}
else
{
orderWasInvalid = true;
}
}
for(auto entry: folderContents)
{
newMods.append(Mod(entry));
}
if(mods.size() != newMods.size())
{
orderWasInvalid = true;
}
else for(int i = 0; i < mods.size(); i++)
{
if(!mods[i].strongCompare(newMods[i]))
{
orderWasInvalid = true;
break;
}
}
beginResetModel();
mods.swap(newMods);
endResetModel();
if(orderWasInvalid)
{
saveListFile();
emit changed();
}
return true;
}
void ModList::directoryChanged ( QString path )
{
update();
}
QStringList ModList::readListFile()
{
QStringList stringList;
if(m_list_file.isNull() || m_list_file.isEmpty())
return stringList;
QFile textFile(m_list_file);
if(!textFile.open(QIODevice::ReadOnly | QIODevice::Text))
return QStringList();
QTextStream textStream(&textFile);
while (true)
{
QString line = textStream.readLine();
if (line.isNull() || line.isEmpty())
break;
else
{
stringList.append(line);
}
}
textFile.close();
return stringList;
}
bool ModList::saveListFile()
{
if(m_list_file.isNull() || m_list_file.isEmpty())
return false;
QFile textFile(m_list_file);
if(!textFile.open(QIODevice::WriteOnly | QIODevice::Text | QIODevice::Truncate))
return false;
QTextStream textStream(&textFile);
for(auto mod:mods)
{
auto pathname = mod.filename();
QString filename = pathname.fileName();
textStream << filename << endl;
}
textFile.close();
return false;
}
bool ModList::isValid()
{
return m_dir.exists() && m_dir.isReadable();
}
bool ModList::installMod ( const QFileInfo& filename, int index )
{
if(!filename.exists() || !filename.isReadable() || index < 0)
{
return false;
}
Mod m(filename);
if(!m.valid())
return false;
// if it's already there, replace the original mod (in place)
int idx = mods.indexOf(m);
if(idx != -1)
{
if(mods[idx].replace(m))
{
auto left = this->index(index);
auto right = this->index(index, columnCount(QModelIndex()) - 1);
emit dataChanged(left, right);
saveListFile();
emit changed();
return true;
}
return false;
}
auto type = m.type();
if(type == Mod::MOD_UNKNOWN)
return false;
if(type == Mod::MOD_SINGLEFILE || type == Mod::MOD_ZIPFILE)
{
QString newpath = PathCombine(m_dir.path(), filename.fileName());
if(!QFile::copy(filename.filePath(), newpath))
return false;
m.repath(newpath);
beginInsertRows(QModelIndex(), index, index);
mods.insert(index,m);
endInsertRows();
saveListFile();
emit changed();
return true;
}
else if(type == Mod::MOD_FOLDER)
{
QString from = filename.filePath();
QString to = PathCombine(m_dir.path(), filename.fileName());
if(!copyPath(from, to))
return false;
m.repath(to);
beginInsertRows(QModelIndex(), index, index);
mods.insert(index,m);
endInsertRows();
saveListFile();
emit changed();
return true;
}
return false;
}
bool ModList::deleteMod ( int index )
{
if(index >= mods.size() || index < 0)
return false;
Mod & m = mods[index];
if(m.destroy())
{
beginRemoveRows(QModelIndex(), index, index);
mods.removeAt(index);
endRemoveRows();
saveListFile();
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();
}
beginRemoveRows(QModelIndex(), first, last);
mods.erase(mods.begin() + first, mods.begin() + last + 1);
endRemoveRows();
saveListFile();
emit changed();
return true;
}
bool ModList::moveModTo ( int from, int to )
{
if(from < 0 || from >= mods.size())
return false;
if (to >= rowCount())
to = rowCount() - 1;
if (to == -1)
to = rowCount() - 1;
if(from == to)
return false;
int togap = to > from ? to + 1: to;
beginMoveRows(QModelIndex(), from, from, QModelIndex(), togap);
mods.move(from, to);
endMoveRows();
saveListFile();
emit changed();
return true;
}
bool ModList::moveModUp ( int from )
{
if(from > 0)
return moveModTo(from, from - 1);
return false;
}
bool ModList::moveModsUp ( int first, int last )
{
if(first == 0)
return false;
beginMoveRows(QModelIndex(), first, last, QModelIndex(), first - 1);
mods.move(first-1, last);
endMoveRows();
saveListFile();
emit changed();
return true;
}
bool ModList::moveModDown ( int from )
{
if(from < 0)
return false;
if(from < mods.size() - 1)
return moveModTo(from, from + 1);
return false;
}
bool ModList::moveModsDown ( int first, int last )
{
if(last == mods.size() - 1)
return false;
beginMoveRows(QModelIndex(), first, last, QModelIndex(), last + 2);
mods.move(last+1, first);
endMoveRows();
saveListFile();
emit changed();
return true;
}
int ModList::columnCount ( const QModelIndex& parent ) const
{
return 2;
}
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();
if(role != Qt::DisplayRole)
return QVariant();
switch(column)
{
case 0:
return mods[row].name();
case 1:
return mods[row].version();
case 2:
return mods[row].mcversion();
default:
return QVariant();
}
}
QVariant ModList::headerData ( int section, Qt::Orientation orientation, int role ) const
{
if (role != Qt::DisplayRole || orientation != Qt::Horizontal)
return QVariant();
switch (section)
{
case 0:
return QString("Name");
case 1:
return QString("Version");
case 2:
return QString("Minecraft");
}
}
Qt::ItemFlags ModList::flags ( const QModelIndex& index ) const
{
Qt::ItemFlags defaultFlags = QAbstractListModel::flags ( index );
if (index.isValid())
return Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled | defaultFlags;
else
return Qt::ItemIsDropEnabled | defaultFlags;
}
QStringList ModList::mimeTypes() const
{
QStringList types;
types << "text/uri-list";
types << "text/plain";
return types;
}
Qt::DropActions ModList::supportedDropActions() const
{
// copy from outside, move from within and other mod lists
return Qt::CopyAction | Qt::MoveAction;
}
Qt::DropActions ModList::supportedDragActions() const
{
// move to other mod lists or VOID
return Qt::MoveAction;
}
QMimeData* ModList::mimeData ( const QModelIndexList& indexes ) const
{
QMimeData * data = new QMimeData();
if(indexes.size() == 0)
return data;
auto idx = indexes[0];
int row = idx.row();
if(row <0 || row >= mods.size())
return data;
QStringList params;
params << m_list_id << QString::number(row);
data->setText(params.join('|'));
return data;
}
bool ModList::dropMimeData ( const QMimeData* data, Qt::DropAction action, int row, int column, const QModelIndex& parent )
{
if (action == Qt::IgnoreAction)
return true;
// check if the action is supported
if (!data || !(action & supportedDropActions()))
return false;
if(parent.isValid())
{
row = parent.row();
column = parent.column();
}
if (row > rowCount())
row = rowCount();
if (row == -1)
row = rowCount();
if (column == -1)
column = 0;
QLOG_INFO() << "Drop row: " << row << " column: " << column;
// files dropped from outside?
if(data->hasUrls())
{
bool was_watching = is_watching;
if(was_watching)
stopWatching();
auto urls = data->urls();
for(auto url: urls)
{
// only local files may be dropped...
if(!url.isLocalFile())
continue;
QString filename = url.toLocalFile();
installMod(filename, row);
QLOG_INFO() << "installing: " << filename;
}
if(was_watching)
startWatching();
return true;
}
else if(data->hasText())
{
QString sourcestr = data->text();
auto list = sourcestr.split('|');
if(list.size() != 2)
return false;
QString remoteId = list[0];
int remoteIndex = list[1].toInt();
QLOG_INFO() << "move: " << sourcestr;
// no moving of things between two lists
if(remoteId != m_list_id)
return false;
// no point moving to the same place...
if(row == remoteIndex)
return false;
// otherwise, move the mod :D
moveModTo(remoteIndex, row);
return true;
}
return false;
}