HaikuDepot: Add interface for PackageInfoListener.

Also defines PackageInfoEvent.

src/apps/haiku-depot/Jamfile

@@ -38,6 +38,7 @@ Application HaikuDepot :
 	MainWindow.cpp
 	Model.cpp
 	PackageInfo.cpp
+	PackageInfoListener.cpp
 	PackageInfoView.cpp
 	PackageListView.cpp
 	PackageManager.cpp

src/apps/haiku-depot/PackageInfoListener.cpp

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2013, Stephan Aßmus <superstippi@gmx.de>.
+ * All rights reserved. Distributed under the terms of the MIT License.
+ */
+
+#include "PackageInfoListener.h"
+
+#include <stdio.h>
+
+
+// #pragma mark - PackageInfoEvent
+
+
+PackageInfoEvent::PackageInfoEvent()
+	:
+	fPackage(),
+	fChanges(0)
+{
+}
+
+
+PackageInfoEvent::PackageInfoEvent(const PackageInfoRef& package,
+		uint32 changes)
+	:
+	fPackage(package),
+	fChanges(changes)
+{
+}
+
+
+PackageInfoEvent::PackageInfoEvent(const PackageInfoEvent& other)
+	:
+	fPackage(other.fPackage),
+	fChanges(other.fChanges)
+{
+}
+
+
+PackageInfoEvent::~PackageInfoEvent()
+{
+}
+
+
+bool
+PackageInfoEvent::operator==(const PackageInfoEvent& other)
+{
+	if (this == &other)
+		return true;
+
+	return fPackage == other.fPackage
+		&& fChanges == other.fChanges;
+}
+
+
+bool
+PackageInfoEvent::operator!=(const PackageInfoEvent& other)
+{
+	return !(*this == other);
+}
+
+
+PackageInfoEvent&
+PackageInfoEvent::operator=(const PackageInfoEvent& other)
+{
+	if (this != &other) {
+		fPackage = other.fPackage;
+		fChanges = other.fChanges;
+	}
+
+	return *this;
+}
+
+
+// #pragma mark - PackageInfoListener
+
+
+PackageInfoListener::PackageInfoListener()
+{
+}
+
+
+PackageInfoListener::~PackageInfoListener()
+{
+}

src/apps/haiku-depot/PackageInfoListener.h

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2013, Stephan Aßmus <superstippi@gmx.de>.
+ * All rights reserved. Distributed under the terms of the MIT License.
+ */
+#ifndef PACKAGE_INFO_LISTENER_H
+#define PACKAGE_INFO_LISTENER_H
+
+
+#include "PackageInfo.h"
+
+
+enum {
+	PKG_CHANGED_DESCRIPTION		= 1 << 0,
+	PKG_CHANGED_RATINGS			= 1 << 1,
+	PKG_CHANGED_SCREENSHOTS		= 1 << 2,
+	// ...
+};
+
+
+class PackageInfoEvent {
+public:
+								PackageInfoEvent();
+								PackageInfoEvent(const PackageInfoRef& package,
+									uint32 changes);
+								PackageInfoEvent(const PackageInfoEvent& other);
+	virtual						~PackageInfoEvent();
+
+			bool				operator==(const PackageInfoEvent& other);
+			bool				operator!=(const PackageInfoEvent& other);
+			PackageInfoEvent&	operator=(const PackageInfoEvent& other);
+
+	inline	const PackageInfoRef& Package() const
+									{ return fPackage; }
+
+	inline	uint32				Changes() const
+									{ return fChanges; }
+
+private:
+			PackageInfoRef		fPackage;
+			uint32				fChanges;
+};
+
+
+class PackageInfoListener {
+public:
+								PackageInfoListener();
+	virtual						~PackageInfoListener();
+
+	virtual	void				PackageChanged(
+									const PackageInfoEvent& event) = 0;
+};
+
+
+#endif // PACKAGE_INFO_LISTENER_H