Added a system to load news from MultiMC.org's RSS

Currently it doesn't show it anywhere in the UI. That's next.

1 files changed, 105 insertions, 0 deletions

diff --git a/logic/news/NewsChecker.h b/logic/news/NewsChecker.h
new file mode 100644
index 00000000..6d1fb935
--- /dev/null
+++ b/logic/news/NewsChecker.h
@@ -0,0 +1,105 @@
+/* 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.
+ */
+
+#pragma once
+
+#include <QObject>
+#include <QString>
+#include <QList>
+
+#include <logic/net/NetJob.h>
+
+#include "NewsEntry.h"
+
+class NewsChecker : public QObject
+{
+	Q_OBJECT
+public:
+	/*!
+	 * Constructs a news reader to read from the given RSS feed URL.
+	 */
+	NewsChecker(const QString& feedUrl);
+	
+	/*!
+	 * Returns the error message for the last time the news was loaded.
+	 * Empty string if the last load was successful.
+	 */
+	QString getLastLoadErrorMsg() const;
+
+	/*!
+	 * Returns true if the news has been loaded successfully.
+	 */
+	bool isNewsLoaded() const;
+
+	/*!
+	 * Returns a list of news entries.
+	 */
+	QList<NewsEntryPtr> getNewsEntries() const;
+
+	/*!
+	 * Reloads the news from the website's RSS feed.
+	 * If the news is already loading, this does nothing.
+	 */
+	void Q_SLOT reloadNews();
+
+signals:
+	/*!
+	 * Signal fired after the news has finished loading.
+	 */
+	void newsLoaded();
+
+	/*!
+	 * Signal fired after the news fails to load.
+	 */
+	void newsLoadingFailed(QString errorMsg);
+
+protected slots:
+	void rssDownloadFinished();
+	void rssDownloadFailed();
+
+protected:
+	//! The URL for the RSS feed to fetch.
+	QString m_feedUrl;
+
+	//! List of news entries.
+	QList<NewsEntryPtr> m_newsEntries;
+
+	//! The network job to use to load the news.
+	NetJobPtr m_newsNetJob;
+	
+	//! True if the news is currently loading. If true, reloadNews() will do nothing.
+	bool isLoadingNews() const;
+
+	//! True if news has been loaded.
+	bool m_loadedNews;
+
+	/*!
+	 * Gets the error message that was given last time the news was loaded.
+	 * If the last news load succeeded, this will be an empty string.
+	 */
+	QString m_lastLoadError;
+
+	
+	/*!
+	 * Emits newsLoaded() and sets m_lastLoadError to empty string.
+	 */
+	void Q_SLOT succeed();
+
+	/*!
+	 * Emits newsLoadingFailed() and sets m_lastLoadError to the given message.
+	 */
+	void Q_SLOT fail(const QString& errorMsg);
+};
+