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#pragma once
#include <AK/Badge.h>
#include <AK/HashMap.h>
#include <AK/OwnPtr.h>
#include <AK/Vector.h>
#include <AK/WeakPtr.h>
#include <WindowServer/WSAPITypes.h>
#include <LibGUI/GEvent.h>
class GAction;
class GObject;
class GNotifier;
class GWindow;
class GEventLoop {
public:
GEventLoop();
~GEventLoop();
int exec();
void post_event(GObject& receiver, OwnPtr<GEvent>&&);
static GEventLoop& main();
static GEventLoop& current();
bool running() const { return m_running; }
static int register_timer(GObject&, int milliseconds, bool should_reload);
static bool unregister_timer(int timer_id);
static void register_notifier(Badge<GNotifier>, GNotifier&);
static void unregister_notifier(Badge<GNotifier>, GNotifier&);
void quit(int);
static bool post_message_to_server(const WSAPI_ClientMessage&);
bool wait_for_specific_event(WSAPI_ServerMessage::Type, WSAPI_ServerMessage&);
WSAPI_ServerMessage sync_request(const WSAPI_ClientMessage& request, WSAPI_ServerMessage::Type response_type);
static pid_t server_pid() { return s_server_pid; }
void take_pending_events_from(GEventLoop& other)
{
m_queued_events.append(move(other.m_queued_events));
m_unprocessed_messages.append(move(other.m_unprocessed_messages));
}
private:
void wait_for_event();
bool drain_messages_from_server();
void process_unprocessed_messages();
void handle_paint_event(const WSAPI_ServerMessage&, GWindow&);
void handle_resize_event(const WSAPI_ServerMessage&, GWindow&);
void handle_mouse_event(const WSAPI_ServerMessage&, GWindow&);
void handle_key_event(const WSAPI_ServerMessage&, GWindow&);
void handle_window_activation_event(const WSAPI_ServerMessage&, GWindow&);
void handle_window_close_request_event(const WSAPI_ServerMessage&, GWindow&);
void handle_menu_event(const WSAPI_ServerMessage&);
void handle_window_entered_or_left_event(const WSAPI_ServerMessage&, GWindow&);
void get_next_timer_expiration(timeval&);
void connect_to_server();
struct QueuedEvent {
WeakPtr<GObject> receiver;
OwnPtr<GEvent> event;
};
Vector<QueuedEvent> m_queued_events;
Vector<WSAPI_ServerMessage> m_unprocessed_messages;
bool m_running { false };
bool m_exit_requested { false };
int m_exit_code { 0 };
static pid_t s_server_pid;
static pid_t s_event_fd;
struct EventLoopTimer {
int timer_id { 0 };
int interval { 0 };
timeval fire_time;
bool should_reload { false };
WeakPtr<GObject> owner;
void reload();
bool has_expired() const;
};
static HashMap<int, OwnPtr<EventLoopTimer>>* s_timers;
static int s_next_timer_id;
static HashTable<GNotifier*>* s_notifiers;
};
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