600 lines
16 KiB
C++
600 lines
16 KiB
C++
// SPDX-License-Identifier: GPL-3.0-only
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/*
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* PolyMC - Minecraft Launcher
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* Copyright (c) 2022 flowln <flowlnlnln@gmail.com>
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* Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* This file incorporates work covered by the following copyright and
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* permission notice:
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*
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* Copyright 2013-2021 MultiMC Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "ModFolderModel.h"
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#include <FileSystem.h>
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#include <QDebug>
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#include <QFileSystemWatcher>
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#include <QMimeData>
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#include <QString>
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#include <QThreadPool>
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#include <QUrl>
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#include <QUuid>
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#include <algorithm>
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#include "minecraft/mod/tasks/LocalModParseTask.h"
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#include "minecraft/mod/tasks/ModFolderLoadTask.h"
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ModFolderModel::ModFolderModel(const QString &dir, bool is_indexed) : QAbstractListModel(), m_dir(dir), m_is_indexed(is_indexed)
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{
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FS::ensureFolderPathExists(m_dir.absolutePath());
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m_dir.setFilter(QDir::Readable | QDir::NoDotAndDotDot | QDir::Files | QDir::Dirs);
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m_dir.setSorting(QDir::Name | QDir::IgnoreCase | QDir::LocaleAware);
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m_watcher = new QFileSystemWatcher(this);
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connect(m_watcher, SIGNAL(directoryChanged(QString)), this, SLOT(directoryChanged(QString)));
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}
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void ModFolderModel::startWatching()
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{
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if(is_watching)
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return;
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update();
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is_watching = m_watcher->addPath(m_dir.absolutePath());
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if (is_watching)
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{
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qDebug() << "Started watching " << m_dir.absolutePath();
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}
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else
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{
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qDebug() << "Failed to start watching " << m_dir.absolutePath();
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}
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}
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void ModFolderModel::stopWatching()
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{
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if(!is_watching)
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return;
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is_watching = !m_watcher->removePath(m_dir.absolutePath());
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if (!is_watching)
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{
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qDebug() << "Stopped watching " << m_dir.absolutePath();
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}
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else
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{
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qDebug() << "Failed to stop watching " << m_dir.absolutePath();
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}
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}
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bool ModFolderModel::update()
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{
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if (!isValid()) {
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return false;
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}
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if(m_update) {
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scheduled_update = true;
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return true;
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}
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auto index_dir = indexDir();
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auto task = new ModFolderLoadTask(dir(), index_dir, m_is_indexed);
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m_update = task->result();
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QThreadPool *threadPool = QThreadPool::globalInstance();
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connect(task, &ModFolderLoadTask::succeeded, this, &ModFolderModel::finishUpdate);
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threadPool->start(task);
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return true;
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}
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void ModFolderModel::finishUpdate()
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{
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#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
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auto currentList = modsIndex.keys();
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QSet<QString> currentSet(currentList.begin(), currentList.end());
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auto & newMods = m_update->mods;
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auto newList = newMods.keys();
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QSet<QString> newSet(newList.begin(), newList.end());
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#else
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QSet<QString> currentSet = modsIndex.keys().toSet();
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auto & newMods = m_update->mods;
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QSet<QString> newSet = newMods.keys().toSet();
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#endif
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// see if the kept mods changed in some way
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{
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QSet<QString> kept = currentSet;
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kept.intersect(newSet);
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for(auto & keptMod: kept) {
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auto & newMod = newMods[keptMod];
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auto row = modsIndex[keptMod];
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auto & currentMod = mods[row];
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if(newMod.dateTimeChanged() == currentMod.dateTimeChanged()) {
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// no significant change, ignore...
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continue;
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}
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auto & oldMod = mods[row];
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if(oldMod.isResolving()) {
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activeTickets.remove(oldMod.resolutionTicket());
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}
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oldMod = newMod;
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resolveMod(mods[row]);
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emit dataChanged(index(row, 0), index(row, columnCount(QModelIndex()) - 1));
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}
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}
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// remove mods no longer present
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{
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QSet<QString> removed = currentSet;
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QList<int> removedRows;
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removed.subtract(newSet);
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for(auto & removedMod: removed) {
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removedRows.append(modsIndex[removedMod]);
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}
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std::sort(removedRows.begin(), removedRows.end(), std::greater<int>());
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for(auto iter = removedRows.begin(); iter != removedRows.end(); iter++) {
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int removedIndex = *iter;
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beginRemoveRows(QModelIndex(), removedIndex, removedIndex);
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auto removedIter = mods.begin() + removedIndex;
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if(removedIter->isResolving()) {
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activeTickets.remove(removedIter->resolutionTicket());
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}
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mods.erase(removedIter);
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endRemoveRows();
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}
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}
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// add new mods to the end
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{
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QSet<QString> added = newSet;
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added.subtract(currentSet);
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// When you have a Qt build with assertions turned on, proceeding here will abort the application
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if (added.size() > 0) {
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beginInsertRows(QModelIndex(), mods.size(), mods.size() + added.size() - 1);
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for (auto& addedMod : added) {
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mods.append(newMods[addedMod]);
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resolveMod(mods.last());
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}
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endInsertRows();
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}
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}
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// update index
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{
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modsIndex.clear();
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int idx = 0;
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for(auto & mod: mods) {
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modsIndex[mod.internal_id()] = idx;
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idx++;
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}
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}
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m_update.reset();
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emit updateFinished();
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if(scheduled_update) {
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scheduled_update = false;
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update();
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}
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}
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void ModFolderModel::resolveMod(Mod& m)
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{
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if(!m.shouldResolve()) {
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return;
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}
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auto task = new LocalModParseTask(nextResolutionTicket, m.type(), m.fileinfo());
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auto result = task->result();
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result->id = m.internal_id();
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activeTickets.insert(nextResolutionTicket, result);
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m.setResolving(true, nextResolutionTicket);
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nextResolutionTicket++;
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QThreadPool *threadPool = QThreadPool::globalInstance();
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connect(task, &LocalModParseTask::finished, this, &ModFolderModel::finishModParse);
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threadPool->start(task);
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}
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void ModFolderModel::finishModParse(int token)
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{
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auto iter = activeTickets.find(token);
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if(iter == activeTickets.end()) {
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return;
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}
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auto result = *iter;
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activeTickets.remove(token);
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int row = modsIndex[result->id];
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auto & mod = mods[row];
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mod.finishResolvingWithDetails(result->details);
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emit dataChanged(index(row), index(row, columnCount(QModelIndex()) - 1));
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}
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void ModFolderModel::disableInteraction(bool disabled)
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{
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if (interaction_disabled == disabled) {
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return;
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}
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interaction_disabled = disabled;
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if(size()) {
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emit dataChanged(index(0), index(size() - 1));
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}
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}
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void ModFolderModel::directoryChanged(QString path)
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{
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update();
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}
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bool ModFolderModel::isValid()
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{
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return m_dir.exists() && m_dir.isReadable();
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}
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// FIXME: this does not take disabled mod (with extra .disable extension) into account...
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bool ModFolderModel::installMod(const QString &filename)
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{
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if(interaction_disabled) {
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return false;
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}
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// NOTE: fix for GH-1178: remove trailing slash to avoid issues with using the empty result of QFileInfo::fileName
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auto originalPath = FS::NormalizePath(filename);
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QFileInfo fileinfo(originalPath);
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if (!fileinfo.exists() || !fileinfo.isReadable())
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{
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qWarning() << "Caught attempt to install non-existing file or file-like object:" << originalPath;
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return false;
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}
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qDebug() << "installing: " << fileinfo.absoluteFilePath();
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Mod installedMod(fileinfo);
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if (!installedMod.valid())
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{
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qDebug() << originalPath << "is not a valid mod. Ignoring it.";
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return false;
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}
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auto type = installedMod.type();
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if (type == Mod::MOD_UNKNOWN)
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{
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qDebug() << "Cannot recognize mod type of" << originalPath << ", ignoring it.";
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return false;
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}
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auto newpath = FS::NormalizePath(FS::PathCombine(m_dir.path(), fileinfo.fileName()));
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if(originalPath == newpath)
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{
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qDebug() << "Overwriting the mod (" << originalPath << ") with itself makes no sense...";
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return false;
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}
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if (type == Mod::MOD_SINGLEFILE || type == Mod::MOD_ZIPFILE || type == Mod::MOD_LITEMOD)
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{
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if(QFile::exists(newpath) || QFile::exists(newpath + QString(".disabled")))
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{
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if(!QFile::remove(newpath))
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{
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// FIXME: report error in a user-visible way
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qWarning() << "Copy from" << originalPath << "to" << newpath << "has failed.";
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return false;
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}
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qDebug() << newpath << "has been deleted.";
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}
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if (!QFile::copy(fileinfo.filePath(), newpath))
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{
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qWarning() << "Copy from" << originalPath << "to" << newpath << "has failed.";
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// FIXME: report error in a user-visible way
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return false;
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}
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FS::updateTimestamp(newpath);
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QFileInfo newpathInfo(newpath);
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installedMod.repath(newpathInfo);
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update();
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return true;
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}
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else if (type == Mod::MOD_FOLDER)
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{
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QString from = fileinfo.filePath();
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if(QFile::exists(newpath))
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{
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qDebug() << "Ignoring folder " << from << ", it would merge with " << newpath;
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return false;
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}
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if (!FS::copy(from, newpath)())
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{
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qWarning() << "Copy of folder from" << originalPath << "to" << newpath << "has (potentially partially) failed.";
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return false;
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}
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QFileInfo newpathInfo(newpath);
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installedMod.repath(newpathInfo);
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update();
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return true;
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}
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return false;
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}
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bool ModFolderModel::setModStatus(const QModelIndexList& indexes, ModStatusAction enable)
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{
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if(interaction_disabled) {
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return false;
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}
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if(indexes.isEmpty())
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return true;
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for (auto index: indexes)
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{
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if(index.column() != 0) {
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continue;
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}
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setModStatus(index.row(), enable);
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}
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return true;
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}
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bool ModFolderModel::deleteMods(const QModelIndexList& indexes)
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{
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if(interaction_disabled) {
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return false;
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}
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if(indexes.isEmpty())
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return true;
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for (auto i: indexes)
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{
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if(i.column() != 0) {
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continue;
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}
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Mod &m = mods[i.row()];
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auto index_dir = indexDir();
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m.destroy(index_dir);
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}
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return true;
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}
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int ModFolderModel::columnCount(const QModelIndex &parent) const
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{
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return NUM_COLUMNS;
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}
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QVariant ModFolderModel::data(const QModelIndex &index, int role) const
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{
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if (!index.isValid())
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return QVariant();
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int row = index.row();
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int column = index.column();
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if (row < 0 || row >= mods.size())
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return QVariant();
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switch (role)
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{
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case Qt::DisplayRole:
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switch (column)
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{
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case NameColumn:
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return mods[row].name();
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case VersionColumn: {
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switch(mods[row].type()) {
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case Mod::MOD_FOLDER:
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return tr("Folder");
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case Mod::MOD_SINGLEFILE:
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return tr("File");
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default:
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break;
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}
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return mods[row].version();
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}
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case DateColumn:
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return mods[row].dateTimeChanged();
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default:
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return QVariant();
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}
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case Qt::ToolTipRole:
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return mods[row].internal_id();
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case Qt::CheckStateRole:
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switch (column)
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{
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case ActiveColumn:
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return mods[row].enabled() ? Qt::Checked : Qt::Unchecked;
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default:
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return QVariant();
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}
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default:
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return QVariant();
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}
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}
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bool ModFolderModel::setData(const QModelIndex &index, const QVariant &value, int role)
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{
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if (index.row() < 0 || index.row() >= rowCount(index) || !index.isValid())
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{
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return false;
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}
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if (role == Qt::CheckStateRole)
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{
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return setModStatus(index.row(), Toggle);
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}
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return false;
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}
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bool ModFolderModel::setModStatus(int row, ModFolderModel::ModStatusAction action)
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{
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if(row < 0 || row >= mods.size()) {
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return false;
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}
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auto &mod = mods[row];
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bool desiredStatus;
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switch(action) {
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case Enable:
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desiredStatus = true;
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break;
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case Disable:
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desiredStatus = false;
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break;
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case Toggle:
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default:
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desiredStatus = !mod.enabled();
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break;
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}
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if(desiredStatus == mod.enabled()) {
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return true;
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}
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// preserve the row, but change its ID
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auto oldId = mod.internal_id();
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if(!mod.enable(!mod.enabled())) {
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return false;
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}
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auto newId = mod.internal_id();
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if(modsIndex.contains(newId)) {
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// NOTE: this could handle a corner case, where we are overwriting a file, because the same 'mod' exists both enabled and disabled
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// But is it necessary?
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}
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modsIndex.remove(oldId);
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modsIndex[newId] = row;
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emit dataChanged(index(row, 0), index(row, columnCount(QModelIndex()) - 1));
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return true;
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}
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QVariant ModFolderModel::headerData(int section, Qt::Orientation orientation, int role) const
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{
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switch (role)
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{
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case Qt::DisplayRole:
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switch (section)
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{
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case ActiveColumn:
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return QString();
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case NameColumn:
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return tr("Name");
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case VersionColumn:
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return tr("Version");
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case DateColumn:
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return tr("Last changed");
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default:
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return QVariant();
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}
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case Qt::ToolTipRole:
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switch (section)
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{
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case ActiveColumn:
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return tr("Is the mod enabled?");
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case NameColumn:
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return tr("The name of the mod.");
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case VersionColumn:
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return tr("The version of the mod.");
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case DateColumn:
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return tr("The date and time this mod was last changed (or added).");
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default:
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return QVariant();
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}
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default:
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return QVariant();
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}
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return QVariant();
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}
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Qt::ItemFlags ModFolderModel::flags(const QModelIndex &index) const
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{
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Qt::ItemFlags defaultFlags = QAbstractListModel::flags(index);
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auto flags = defaultFlags;
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if(interaction_disabled) {
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flags &= ~Qt::ItemIsDropEnabled;
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}
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else
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{
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flags |= Qt::ItemIsDropEnabled;
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if(index.isValid()) {
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flags |= Qt::ItemIsUserCheckable;
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}
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}
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return flags;
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}
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Qt::DropActions ModFolderModel::supportedDropActions() const
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{
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// copy from outside, move from within and other mod lists
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return Qt::CopyAction | Qt::MoveAction;
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}
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QStringList ModFolderModel::mimeTypes() const
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{
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QStringList types;
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types << "text/uri-list";
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return types;
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}
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bool ModFolderModel::dropMimeData(const QMimeData* data, Qt::DropAction action, int, int, const QModelIndex&)
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{
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if (action == Qt::IgnoreAction)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// check if the action is supported
|
|
if (!data || !(action & supportedDropActions()))
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// files dropped from outside?
|
|
if (data->hasUrls())
|
|
{
|
|
auto urls = data->urls();
|
|
for (auto url : urls)
|
|
{
|
|
// only local files may be dropped...
|
|
if (!url.isLocalFile())
|
|
{
|
|
continue;
|
|
}
|
|
// TODO: implement not only copy, but also move
|
|
// FIXME: handle errors here
|
|
installMod(url.toLocalFile());
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|