input_common: Rewrite touch

src/input_common/drivers/touch_screen.h

@@ -0,0 +1,50 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+#include "input_common/input_engine.h"
+
+namespace InputCommon {
+
+/**
+ * A button device factory representing a keyboard. It receives keyboard events and forward them
+ * to all button devices it created.
+ */
+class TouchScreen final : public InputCommon::InputEngine {
+public:
+    explicit TouchScreen(const std::string input_engine_);
+
+    /**
+     * Signals that mouse has moved.
+     * @param x the x-coordinate of the cursor
+     * @param y the y-coordinate of the cursor
+     * @param center_x the x-coordinate of the middle of the screen
+     * @param center_y the y-coordinate of the middle of the screen
+     */
+    void TouchMoved(float x, float y, std::size_t finger);
+
+    /**
+     * Sets the status of all buttons bound with the key to pressed
+     * @param key_code the code of the key to press
+     */
+    void TouchPressed(float x, float y, std::size_t finger);
+
+    /**
+     * Sets the status of all buttons bound with the key to released
+     * @param key_code the code of the key to release
+     */
+    void TouchReleased(std::size_t finger);
+
+    void ReleaseAllTouch();
+
+private:
+    const PadIdentifier identifier = {
+        .guid = Common::UUID{""},
+        .port = 0,
+        .pad = 0,
+    };
+};
+
+} // namespace InputCommon