Reorganize logic code.

1 files changed, 199 insertions, 0 deletions

diff --git a/logic/LwjglVersionList.cpp b/logic/LwjglVersionList.cpp
new file mode 100644
index 00000000..df46d7be
--- /dev/null
+++ b/logic/LwjglVersionList.cpp
@@ -0,0 +1,199 @@
+/* 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 "LwjglVersionList.h"
+#include "MultiMC.h"
+
+#include <QtNetwork>
+#include <QtXml>
+#include <QRegExp>
+
+#include "logger/QsLog.h"
+
+#define RSS_URL "http://sourceforge.net/api/file/index/project-id/58488/mtime/desc/rss"
+
+LWJGLVersionList::LWJGLVersionList(QObject *parent) : QAbstractListModel(parent)
+{
+	setLoading(false);
+}
+
+QVariant LWJGLVersionList::data(const QModelIndex &index, int role) const
+{
+	if (!index.isValid())
+		return QVariant();
+
+	if (index.row() > count())
+		return QVariant();
+
+	const PtrLWJGLVersion version = at(index.row());
+
+	switch (role)
+	{
+	case Qt::DisplayRole:
+		return version->name();
+
+	case Qt::ToolTipRole:
+		return version->url();
+
+	default:
+		return QVariant();
+	}
+}
+
+QVariant LWJGLVersionList::headerData(int section, Qt::Orientation orientation, int role) const
+{
+	switch (role)
+	{
+	case Qt::DisplayRole:
+		return "Version";
+
+	case Qt::ToolTipRole:
+		return "LWJGL version name.";
+
+	default:
+		return QVariant();
+	}
+}
+
+int LWJGLVersionList::columnCount(const QModelIndex &parent) const
+{
+	return 1;
+}
+
+bool LWJGLVersionList::isLoading() const
+{
+	return m_loading;
+}
+
+void LWJGLVersionList::loadList()
+{
+	Q_ASSERT_X(!m_loading, "loadList", "list is already loading (m_loading is true)");
+
+	setLoading(true);
+	auto worker = MMC->qnam();
+	QNetworkRequest req(QUrl(RSS_URL));
+	req.setRawHeader("Accept", "text/xml");
+	req.setRawHeader("User-Agent", "MultiMC/5.0 (Uncached)");
+	reply = worker->get(req);
+	connect(reply, SIGNAL(finished()), SLOT(netRequestComplete()));
+}
+
+inline QDomElement getDomElementByTagName(QDomElement parent, QString tagname)
+{
+	QDomNodeList elementList = parent.elementsByTagName(tagname);
+	if (elementList.count())
+		return elementList.at(0).toElement();
+	else
+		return QDomElement();
+}
+
+void LWJGLVersionList::netRequestComplete()
+{
+	if (reply->error() == QNetworkReply::NoError)
+	{
+		QRegExp lwjglRegex("lwjgl-(([0-9]\\.?)+)\\.zip");
+		Q_ASSERT_X(lwjglRegex.isValid(), "load LWJGL list", "LWJGL regex is invalid");
+
+		QDomDocument doc;
+
+		QString xmlErrorMsg;
+		int errorLine;
+		if (!doc.setContent(reply->readAll(), false, &xmlErrorMsg, &errorLine))
+		{
+			failed("Failed to load LWJGL list. XML error: " + xmlErrorMsg + " at line " +
+				   QString::number(errorLine));
+			setLoading(false);
+			return;
+		}
+
+		QDomNodeList items = doc.elementsByTagName("item");
+
+		QList<PtrLWJGLVersion> tempList;
+
+		for (int i = 0; i < items.length(); i++)
+		{
+			Q_ASSERT_X(items.at(i).isElement(), "load LWJGL list",
+					   "XML element isn't an element... wat?");
+
+			QDomElement linkElement = getDomElementByTagName(items.at(i).toElement(), "link");
+			if (linkElement.isNull())
+			{
+				QLOG_INFO() << "Link element" << i << "in RSS feed doesn't exist! Skipping.";
+				continue;
+			}
+
+			QString link = linkElement.text();
+
+			// Make sure it's a download link.
+			if (link.endsWith("/download") && link.contains(lwjglRegex))
+			{
+				QString name = link.mid(lwjglRegex.indexIn(link) + 6);
+				// Subtract 4 here to remove the .zip file extension.
+				name = name.left(lwjglRegex.matchedLength() - 10);
+
+				QUrl url(link);
+				if (!url.isValid())
+				{
+					QLOG_INFO() << "LWJGL version URL isn't valid:" << link << "Skipping.";
+					continue;
+				}
+
+				tempList.append(LWJGLVersion::Create(name, link));
+			}
+		}
+
+		beginResetModel();
+		m_vlist.swap(tempList);
+		endResetModel();
+
+		QLOG_INFO() << "Loaded LWJGL list.";
+		finished();
+	}
+	else
+	{
+		failed("Failed to load LWJGL list. Network error: " + reply->errorString());
+	}
+
+	setLoading(false);
+	reply->deleteLater();
+}
+
+const PtrLWJGLVersion LWJGLVersionList::getVersion(const QString &versionName)
+{
+	for (int i = 0; i < count(); i++)
+	{
+		QString name = at(i)->name();
+		if (name == versionName)
+			return at(i);
+	}
+	return PtrLWJGLVersion();
+}
+
+void LWJGLVersionList::failed(QString msg)
+{
+	QLOG_INFO() << msg;
+	emit loadListFailed(msg);
+}
+
+void LWJGLVersionList::finished()
+{
+	emit loadListFinished();
+}
+
+void LWJGLVersionList::setLoading(bool loading)
+{
+	m_loading = loading;
+	emit loadingStateUpdated(m_loading);
+}