ladybird/Servers/WindowServer/WSButton.h
Andreas Kling 0808d5158c WindowServer: Make WSButton a Weakable and stop rawly pointing to it.
We had a crash due to dereferencing a destroyed WSButton after clicking
a window close button. Avoid that problem by using WeakPtr.
2019-04-06 21:17:02 +02:00

40 lines
952 B
C++

#pragma once
#include <SharedGraphics/Rect.h>
#include <AK/Function.h>
#include <AK/Retained.h>
#include <AK/Weakable.h>
class CharacterBitmap;
class Painter;
class WSMouseEvent;
class WSWindowFrame;
class WSButton : public Weakable<WSButton> {
public:
WSButton(WSWindowFrame&, Retained<CharacterBitmap>&&, Function<void()>&& on_click_handler);
~WSButton();
Rect relative_rect() const { return m_relative_rect; }
void set_relative_rect(const Rect& rect) { m_relative_rect = rect; }
Rect rect() const { return { { }, m_relative_rect.size() }; }
Rect screen_rect() const;
void paint(Painter&);
void on_mouse_event(const WSMouseEvent&);
Function<void()> on_click;
bool is_visible() const { return m_visible; }
private:
WSWindowFrame& m_frame;
Rect m_relative_rect;
Retained<CharacterBitmap> m_bitmap;
bool m_pressed { false };
bool m_visible { true };
bool m_hovered { false };
};