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/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#pragma once
#include <memory>
#include <optional>
#include <vector>
#include "bindey/binding.h"
#include "core/lv_group.h"
#include "core/lv_obj.h"
#include "core/lv_obj_tree.h"
#include "event_binding.hpp"
#include "lvgl.h"
#include "nod/nod.hpp"
#include "widget_top_bar.hpp"
namespace ui {
/*
* Base class for ever discrete screen in the app. Provides a consistent
* interface that can be used for transitioning between screens, adding them to
* back stacks, etc.
*/
class Screen {
public:
Screen();
virtual ~Screen();
/*
* Called periodically to allow the screen to update itself, e.g. to handle
* std::futures that are still loading in.
*/
virtual auto Tick() -> void {}
auto UpdateTopBar(const widgets::TopBar::State& state) -> void;
auto root() -> lv_obj_t* { return root_; }
auto content() -> lv_obj_t* { return content_; }
auto modal_content() -> lv_obj_t* { return modal_content_; }
auto modal_group(lv_group_t* g) -> void { modal_group_ = g; }
auto group() -> lv_group_t* {
if (modal_group_) {
return modal_group_;
}
return group_;
}
protected:
auto CreateTopBar(lv_obj_t* parent, const widgets::TopBar::Configuration&)
-> widgets::TopBar*;
std::pmr::vector<bindey::scoped_binding> data_bindings_;
std::pmr::vector<std::unique_ptr<EventBinding>> event_bindings_;
template <typename T>
auto lv_bind(lv_obj_t* obj, lv_event_code_t ev, T fn) -> void {
auto binding = std::make_unique<EventBinding>(obj, ev);
binding->signal().connect(fn);
event_bindings_.push_back(std::move(binding));
}
lv_obj_t* const root_;
lv_obj_t* content_;
lv_obj_t* modal_content_;
lv_group_t* const group_;
lv_group_t* modal_group_;
private:
std::unique_ptr<widgets::TopBar> top_bar_;
};
class MenuScreen : public Screen {
public:
MenuScreen(const std::pmr::string& title, bool show_back_button = true);
};
} // namespace ui
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