1 files changed, 121 insertions, 0 deletions
diff --git a/logic/resources/Resource.cpp b/logic/resources/Resource.cpp
new file mode 100644
index 00000000..16ed3d2d
--- /dev/null
+++ b/logic/resources/Resource.cpp
@@ -0,0 +1,121 @@
+#include "Resource.h"
+
+#include <QDebug>
+
+#include "WebResourceHandler.h"
+#include "IconResourceHandler.h"
+#include "ResourceObserver.h"
+
+QMap<QString, std::function<std::shared_ptr<ResourceHandler>(const QString &)>> Resource::m_handlers;
+QMap<QPair<int, int>, std::function<QVariant(QVariant)>> Resource::m_transfomers;
+QMap<QString, std::weak_ptr<Resource>> Resource::m_resources;
+
+Resource::Resource(const QString &resource)
+{
+	if (!m_handlers.contains("web"))
+	{
+		registerHandler<WebResourceHandler>("web");
+	}
+	if (!m_handlers.contains("icon"))
+	{
+		registerHandler<IconResourceHandler>("icon");
+	}
+
+	Q_ASSERT(resource.contains(':'));
+	const QString resourceId = resource.left(resource.indexOf(':'));
+	Q_ASSERT(m_handlers.contains(resourceId));
+	m_handler = m_handlers.value(resourceId)(resource.mid(resource.indexOf(':') + 1));
+	m_handler->init(m_handler);
+	m_handler->setResource(this);
+	Q_ASSERT(m_handler);
+}
+Resource::~Resource()
+{
+	qDeleteAll(m_observers);
+}
+
+Resource::Ptr Resource::create(const QString &resource)
+{
+	Resource::Ptr ptr = m_resources.contains(resource)
+			? m_resources.value(resource).lock()
+			: nullptr;
+	if (!ptr)
+	{
+		struct ConstructableResource : public Resource
+		{
+			explicit ConstructableResource(const QString &resource)
+				: Resource(resource) {}
+		};
+		ptr = std::make_shared<ConstructableResource>(resource);
+		m_resources.insert(resource, ptr);
+	}
+	return ptr;
+}
+
+Resource::Ptr Resource::applyTo(ResourceObserver *observer)
+{
+	m_observers.append(observer);
+	observer->setSource(shared_from_this()); // give the observer a shared_ptr for us so we don't get deleted
+	observer->resourceUpdated();
+	return shared_from_this();
+}
+Resource::Ptr Resource::applyTo(QObject *target, const char *property)
+{
+	// the cast to ResourceObserver* is required to ensure the right overload gets choosen
+	return applyTo(static_cast<ResourceObserver *>(new QObjectResourceObserver(target, property)));
+}
+
+Resource::Ptr Resource::placeholder(Resource::Ptr other)
+{
+	m_placeholder = other;
+	for (ResourceObserver *observer : m_observers)
+	{
+		observer->resourceUpdated();
+	}
+	return shared_from_this();
+}
+
+QVariant Resource::getResourceInternal(const int typeId) const
+{
+	if (m_handler->result().isNull() && m_placeholder)
+	{
+		return m_placeholder->getResourceInternal(typeId);
+	}
+	const QVariant variant = m_handler->result();
+	const auto typePair = qMakePair(int(variant.type()), typeId);
+	if (m_transfomers.contains(typePair))
+	{
+		return m_transfomers.value(typePair)(variant);
+	}
+	else
+	{
+		return variant;
+	}
+}
+
+void Resource::reportResult()
+{
+	for (ResourceObserver *observer : m_observers)
+	{
+		observer->resourceUpdated();
+	}
+}
+void Resource::reportFailure(const QString &reason)
+{
+	for (ResourceObserver *observer : m_observers)
+	{
+		observer->setFailure(reason);
+	}
+}
+void Resource::reportProgress(const int progress)
+{
+	for (ResourceObserver *observer : m_observers)
+	{
+		observer->setProgress(progress);
+	}
+}
+
+void Resource::notifyObserverDeleted(ResourceObserver *observer)
+{
+	m_observers.removeAll(observer);
+}