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// Copyright 2020 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include "common/settings.h"
#include "input_common/helpers/touch_from_buttons.h"
namespace InputCommon {
class TouchFromButtonDevice final : public Common::Input::InputDevice {
public:
using Button = std::unique_ptr<Common::Input::InputDevice>;
TouchFromButtonDevice(Button button_, int touch_id_, float x_, float y_)
: button(std::move(button_)), touch_id(touch_id_), x(x_), y(y_) {
last_button_value = false;
button->SetCallback({
.on_change =
[this](const Common::Input::CallbackStatus& callback_) {
UpdateButtonStatus(callback_);
},
});
button->ForceUpdate();
}
void ForceUpdate() override {
button->ForceUpdate();
}
Common::Input::TouchStatus GetStatus(bool pressed) const {
const Common::Input::ButtonStatus button_status{
.value = pressed,
};
Common::Input::TouchStatus status{
.pressed = button_status,
.x = {},
.y = {},
.id = touch_id,
};
status.x.properties = properties;
status.y.properties = properties;
if (!pressed) {
return status;
}
status.x.raw_value = x;
status.y.raw_value = y;
return status;
}
void UpdateButtonStatus(const Common::Input::CallbackStatus& button_callback) {
const Common::Input::CallbackStatus status{
.type = Common::Input::InputType::Touch,
.touch_status = GetStatus(button_callback.button_status.value),
};
if (last_button_value != button_callback.button_status.value) {
last_button_value = button_callback.button_status.value;
TriggerOnChange(status);
}
}
private:
Button button;
bool last_button_value;
const int touch_id;
const float x;
const float y;
const Common::Input::AnalogProperties properties{0.0f, 1.0f, 0.5f, 0.0f, false};
};
std::unique_ptr<Common::Input::InputDevice> TouchFromButton::Create(
const Common::ParamPackage& params) {
const std::string null_engine = Common::ParamPackage{{"engine", "null"}}.Serialize();
auto button = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>(
params.Get("button", null_engine));
const auto touch_id = params.Get("touch_id", 0);
const float x = params.Get("x", 0.0f) / 1280.0f;
const float y = params.Get("y", 0.0f) / 720.0f;
return std::make_unique<TouchFromButtonDevice>(std::move(button), touch_id, x, y);
}
} // namespace InputCommon
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