citra/src/core/hle/applets/applet.h

106 lines
3.6 KiB
C++

// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include "core/hle/result.h"
#include "core/hle/service/apt/applet_manager.h"
namespace HLE::Applets {
class Applet {
public:
virtual ~Applet() = default;
/**
* Creates an instance of the Applet subclass identified by the parameter.
* and stores it in a global map.
* @param id Id of the applet to create.
* @param parent Id of the applet's parent.
* @param preload Whether the applet is being preloaded.
* @returns ResultCode Whether the operation was successful or not.
*/
static ResultCode Create(Service::APT::AppletId id, Service::APT::AppletId parent, bool preload,
const std::shared_ptr<Service::APT::AppletManager>& manager);
/**
* Retrieves the Applet instance identified by the specified id.
* @param id Id of the Applet to retrieve.
* @returns Requested Applet or nullptr if not found.
*/
static std::shared_ptr<Applet> Get(Service::APT::AppletId id);
/**
* Handles a parameter from the application.
* @param parameter Parameter data to handle.
* @returns ResultCode Whether the operation was successful or not.
*/
ResultCode ReceiveParameter(const Service::APT::MessageParameter& parameter);
/**
* Whether the applet is currently running.
*/
[[nodiscard]] bool IsRunning() const;
/**
* Whether the applet is currently active instead of the host application or not.
*/
[[nodiscard]] bool IsActive() const;
/**
* Handles an update tick for the Applet, lets it update the screen, send commands, etc.
*/
virtual void Update() = 0;
protected:
Applet(Service::APT::AppletId id, Service::APT::AppletId parent, bool preload,
std::weak_ptr<Service::APT::AppletManager> manager)
: id(id), parent(parent), preload(preload), manager(std::move(manager)) {}
/**
* Handles a parameter from the application.
* @param parameter Parameter data to handle.
* @returns ResultCode Whether the operation was successful or not.
*/
virtual ResultCode ReceiveParameterImpl(const Service::APT::MessageParameter& parameter) = 0;
/**
* Handles the Applet start event, triggered from the application.
* @param parameter Parameter data to handle.
* @returns ResultCode Whether the operation was successful or not.
*/
virtual ResultCode Start(const Service::APT::MessageParameter& parameter) = 0;
/**
* Sends the LibAppletClosing signal to the application,
* along with the relevant data buffers.
*/
virtual ResultCode Finalize() = 0;
Service::APT::AppletId id; ///< Id of this Applet
Service::APT::AppletId parent; ///< Id of this Applet's parent
bool preload; ///< Whether the Applet is being preloaded.
std::shared_ptr<std::vector<u8>> heap_memory; ///< Heap memory for this Applet
/// Whether this applet is running.
bool is_running = true;
/// Whether this applet is currently active instead of the host application or not.
bool is_active = false;
void SendParameter(const Service::APT::MessageParameter& parameter);
void CloseApplet(std::shared_ptr<Kernel::Object> object, const std::vector<u8>& buffer);
private:
std::weak_ptr<Service::APT::AppletManager> manager;
};
/// Initializes the HLE applets
void Init();
/// Shuts down the HLE applets
void Shutdown();
} // namespace HLE::Applets