1 files changed, 355 insertions, 0 deletions
diff --git a/libraries/logic/minecraft/WorldList.cpp b/libraries/logic/minecraft/WorldList.cpp
new file mode 100644
index 00000000..42c8a3e6
--- /dev/null
+++ b/libraries/logic/minecraft/WorldList.cpp
@@ -0,0 +1,355 @@
+/* Copyright 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 "WorldList.h"
+#include <FileSystem.h>
+#include <QMimeData>
+#include <QUrl>
+#include <QUuid>
+#include <QString>
+#include <QFileSystemWatcher>
+#include <QDebug>
+
+WorldList::WorldList(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 WorldList::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 WorldList::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();
+	}
+}
+
+bool WorldList::update()
+{
+	if (!isValid())
+		return false;
+
+	QList<World> newWorlds;
+	m_dir.refresh();
+	auto folderContents = m_dir.entryInfoList();
+	// if there are any untracked files...
+	for (QFileInfo entry : folderContents)
+	{
+		if(!entry.isDir())
+			continue;
+
+		World w(entry);
+		if(w.isValid())
+		{
+			newWorlds.append(w);
+		}
+	}
+	beginResetModel();
+	worlds.swap(newWorlds);
+	endResetModel();
+	return true;
+}
+
+void WorldList::directoryChanged(QString path)
+{
+	update();
+}
+
+bool WorldList::isValid()
+{
+	return m_dir.exists() && m_dir.isReadable();
+}
+
+bool WorldList::deleteWorld(int index)
+{
+	if (index >= worlds.size() || index < 0)
+		return false;
+	World &m = worlds[index];
+	if (m.destroy())
+	{
+		beginRemoveRows(QModelIndex(), index, index);
+		worlds.removeAt(index);
+		endRemoveRows();
+		emit changed();
+		return true;
+	}
+	return false;
+}
+
+bool WorldList::deleteWorlds(int first, int last)
+{
+	for (int i = first; i <= last; i++)
+	{
+		World &m = worlds[i];
+		m.destroy();
+	}
+	beginRemoveRows(QModelIndex(), first, last);
+	worlds.erase(worlds.begin() + first, worlds.begin() + last + 1);
+	endRemoveRows();
+	emit changed();
+	return true;
+}
+
+int WorldList::columnCount(const QModelIndex &parent) const
+{
+	return 2;
+}
+
+QVariant WorldList::data(const QModelIndex &index, int role) const
+{
+	if (!index.isValid())
+		return QVariant();
+
+	int row = index.row();
+	int column = index.column();
+
+	if (row < 0 || row >= worlds.size())
+		return QVariant();
+
+	auto & world = worlds[row];
+	switch (role)
+	{
+	case Qt::DisplayRole:
+		switch (column)
+		{
+		case NameColumn:
+			return world.name();
+
+		case LastPlayedColumn:
+			return world.lastPlayed();
+
+		default:
+			return QVariant();
+		}
+
+	case Qt::ToolTipRole:
+	{
+		return world.folderName();
+	}
+	case ObjectRole:
+	{
+		return QVariant::fromValue<void *>((void *)&world);
+	}
+	case FolderRole:
+	{
+		return QDir::toNativeSeparators(dir().absoluteFilePath(world.folderName()));
+	}
+	case SeedRole:
+	{
+		return qVariantFromValue<qlonglong>(world.seed());
+	}
+	case NameRole:
+	{
+		return world.name();
+	}
+	case LastPlayedRole:
+	{
+		return world.lastPlayed();
+	}
+	default:
+		return QVariant();
+	}
+}
+
+QVariant WorldList::headerData(int section, Qt::Orientation orientation, int role) const
+{
+	switch (role)
+	{
+	case Qt::DisplayRole:
+		switch (section)
+		{
+		case NameColumn:
+			return tr("Name");
+		case LastPlayedColumn:
+			return tr("Last Played");
+		default:
+			return QVariant();
+		}
+
+	case Qt::ToolTipRole:
+		switch (section)
+		{
+		case NameColumn:
+			return tr("The name of the world.");
+		case LastPlayedColumn:
+			return tr("Date and time the world was last played.");
+		default:
+			return QVariant();
+		}
+	default:
+		return QVariant();
+	}
+	return QVariant();
+}
+
+QStringList WorldList::mimeTypes() const
+{
+	QStringList types;
+	types << "text/uri-list";
+	return types;
+}
+
+class WorldMimeData : public QMimeData
+{
+Q_OBJECT
+
+public:
+	WorldMimeData(QList<World> worlds)
+	{
+		m_worlds = worlds;
+
+	}
+	QStringList formats() const
+	{
+		return QMimeData::formats() << "text/uri-list";
+	}
+
+protected:
+	QVariant retrieveData(const QString &mimetype, QVariant::Type type) const
+	{
+		QList<QUrl> urls;
+		for(auto &world: m_worlds)
+		{
+			if(!world.isValid() || !world.isOnFS())
+				continue;
+			QString worldPath = world.container().absoluteFilePath();
+			qDebug() << worldPath;
+			urls.append(QUrl::fromLocalFile(worldPath));
+		}
+		const_cast<WorldMimeData*>(this)->setUrls(urls);
+		return QMimeData::retrieveData(mimetype, type);
+	}
+private:
+	QList<World> m_worlds;
+};
+
+QMimeData *WorldList::mimeData(const QModelIndexList &indexes) const
+{
+	if (indexes.size() == 0)
+		return new QMimeData();
+
+	QList<World> worlds;
+	for(auto idx : indexes)
+	{
+		if(idx.column() != 0)
+			continue;
+		int row = idx.row();
+		if (row < 0 || row >= this->worlds.size())
+			continue;
+		worlds.append(this->worlds[row]);
+	}
+	if(!worlds.size())
+	{
+		return new QMimeData();
+	}
+	return new WorldMimeData(worlds);
+}
+
+Qt::ItemFlags WorldList::flags(const QModelIndex &index) const
+{
+	Qt::ItemFlags defaultFlags = QAbstractListModel::flags(index);
+	if (index.isValid())
+		return Qt::ItemIsUserCheckable | Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled |
+			   defaultFlags;
+	else
+		return Qt::ItemIsDropEnabled | defaultFlags;
+}
+
+Qt::DropActions WorldList::supportedDragActions() const
+{
+	// move to other mod lists or VOID
+	return Qt::MoveAction;
+}
+
+Qt::DropActions WorldList::supportedDropActions() const
+{
+	// copy from outside, move from within and other mod lists
+	return Qt::CopyAction | Qt::MoveAction;
+}
+
+void WorldList::installWorld(QFileInfo filename)
+{
+	qDebug() << "installing: " << filename.absoluteFilePath();
+	World w(filename);
+	if(!w.isValid())
+	{
+		return;
+	}
+	w.install(m_dir.absolutePath());
+}
+
+bool WorldList::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;
+	// 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();
+
+			QFileInfo worldInfo(filename);
+
+			if(!m_dir.entryInfoList().contains(worldInfo))
+			{
+				installWorld(worldInfo);
+			}
+		}
+		if (was_watching)
+			startWatching();
+		return true;
+	}
+	return false;
+}
+
+#include "WorldList.moc"