add tox avatar handling + prio png for paste + other fixes and updates

src/tox_avatar_manager.hpp

@@ -0,0 +1,42 @@
+#pragma once
+
+#include "solanaceae/contact/contact_model3.hpp"
+#include <solanaceae/message3/registry_message_model.hpp>
+
+
+// RIP fishy c=<
+
+struct ConfigModelI;
+struct ToxKey;
+
+class ToxAvatarManager : public RegistryMessageModelEventI {
+	RegistryMessageModel& _rmm;
+	Contact3Registry& _cr;
+	ConfigModelI& _conf;
+
+	struct AcceptEntry {
+		Message3Handle m;
+		std::string file_path;
+	};
+	std::vector<AcceptEntry> _accept_queue;
+
+	public:
+		ToxAvatarManager(
+			RegistryMessageModel& rmm,
+			Contact3Registry& cr,
+			ConfigModelI& conf
+		);
+
+		void iterate(void);
+
+	protected:
+		std::string getAvatarPath(const ToxKey& key) const;
+		void addAvatarFileToContact(const Contact3 c, const ToxKey& key);
+		void clearAvatarFromContact(const Contact3 c);
+		void checkMsg(Message3Handle h);
+
+	protected: // mm
+		bool onEvent(const Message::Events::MessageConstruct& e) override;
+		bool onEvent(const Message::Events::MessageUpdated& e) override;
+};
+