Merge pull request #823 from Subv/applets_drawing

Library applet support (swkbd for now)

1 files changed, 77 insertions, 0 deletions

diff --git a/src/core/hle/applets/applet.h b/src/core/hle/applets/applet.h
new file mode 100644
index 000000000..fe537e70d
--- /dev/null
+++ b/src/core/hle/applets/applet.h
@@ -0,0 +1,77 @@
+// Copyright 2015 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/kernel/kernel.h"
+#include "core/hle/kernel/shared_memory.h"
+#include "core/hle/service/apt/apt.h"
+
+namespace HLE {
+namespace Applets {
+
+class Applet {
+public:
+    virtual ~Applet() { }
+    Applet(Service::APT::AppletId id) : id(id) { }
+
+    /**
+     * 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.
+     * @returns ResultCode Whether the operation was successful or not.
+     */
+    static ResultCode Create(Service::APT::AppletId id);
+
+    /**
+     * 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.
+     */
+    virtual ResultCode ReceiveParameter(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.
+     */
+    ResultCode Start(const Service::APT::AppletStartupParameter& parameter);
+
+    /**
+     * Whether the applet is currently executing instead of the host application or not.
+     */
+    virtual bool IsRunning() const = 0;
+
+    /**
+     * Handles an update tick for the Applet, lets it update the screen, send commands, etc.
+     */
+    virtual void Update() = 0;
+
+protected:
+    /**
+     * 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 StartImpl(const Service::APT::AppletStartupParameter& parameter) = 0;
+
+    Service::APT::AppletId id; ///< Id of this Applet
+};
+
+/// Initializes the HLE applets
+void Init();
+
+/// Shuts down the HLE applets
+void Shutdown();
+
+}
+} // namespace