ladybird/LibCore/CObject.h
Andreas Kling 9e6b0ccc0e LibCore+LibGUI: Make CObject child events synchronous.
...and then make GWidget layout invalidation lazy. This way we coalesce
multiple invalidations into a single relayout and we don't have to worry
about child widgets not being fully constructed.
2019-04-18 22:57:24 +02:00

52 lines
1.2 KiB
C++

#pragma once
#include <AK/Function.h>
#include <AK/Vector.h>
#include <AK/Weakable.h>
class CEvent;
class CChildEvent;
class CTimerEvent;
class CObject : public Weakable<CObject> {
public:
CObject(CObject* parent = nullptr, bool is_widget = false);
virtual ~CObject();
virtual const char* class_name() const { return "CObject"; }
virtual void event(CEvent&);
Vector<CObject*>& children() { return m_children; }
const Vector<CObject*>& children() const { return m_children; }
CObject* parent() { return m_parent; }
const CObject* parent() const { return m_parent; }
void start_timer(int ms);
void stop_timer();
bool has_timer() const { return m_timer_id; }
void add_child(CObject&);
void remove_child(CObject&);
void delete_later();
void dump_tree(int indent = 0);
void deferred_invoke(Function<void(CObject&)>);
bool is_widget() const { return m_widget; }
virtual bool is_window() const { return false; }
protected:
virtual void timer_event(CTimerEvent&);
virtual void child_event(CChildEvent&);
private:
CObject* m_parent { nullptr };
int m_timer_id { 0 };
bool m_widget { false };
Vector<CObject*> m_children;
};