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LibGUI: Client window now exits if it loses connection from server 

This can be prevented by installing callback for socket errors.
This commit is contained in:
Bananymous 2024-11-10 14:02:23 +02:00
parent cf21eb4b39
commit 6bd51ac345
3 changed files with 46 additions and 38 deletions
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64
userspace/libraries/LibGUI/Window.cpp
View File

@ -59,8 +59,7 @@ namespace LibGUI
Window::~Window()
{
munmap(m_framebuffer_smo, m_width * m_height * 4);
close(m_server_fd);
clear();
}
BAN::ErrorOr<BAN::UniqPtr<Window>> Window::create(uint32_t width, uint32_t height, BAN::StringView title)
@ -244,10 +243,10 @@ namespace LibGUI
return true;
}
bool Window::invalidate(int32_t x, int32_t y, uint32_t width, uint32_t height)
void Window::invalidate(int32_t x, int32_t y, uint32_t width, uint32_t height)
{
if (!clamp_to_framebuffer(x, y, width, height))
return true;
return;
for (uint32_t i = 0; i < height; i++)
memcpy(&m_framebuffer_smo[(y + i) * m_width + x], &m_framebuffer[(y + i) * m_width + x], width * sizeof(uint32_t));
@ -259,56 +258,59 @@ namespace LibGUI
packet.height = height;
if (auto ret = packet.send_serialized(m_server_fd); ret.is_error())
{
dprintln("failed to invalidate window: {}", ret.error());
return false;
}
return true;
return on_socket_error(__FUNCTION__);
}
bool Window::set_mouse_capture(bool captured)
void Window::set_mouse_capture(bool captured)
{
WindowPacket::WindowSetMouseCapture packet;
packet.captured = captured;
if (auto ret = packet.send_serialized(m_server_fd); ret.is_error())
{
dprintln("failed to set mouse capture: {}", ret.error());
return false;
}
return true;
return on_socket_error(__FUNCTION__);
}
bool Window::set_position(int32_t x, int32_t y)
void Window::set_position(int32_t x, int32_t y)
{
WindowPacket::WindowSetPosition packet;
packet.x = x;
packet.y = y;
if (auto ret = packet.send_serialized(m_server_fd); ret.is_error())
{
dprintln("failed to set window position: {}", ret.error());
return false;
}
return true;
return on_socket_error(__FUNCTION__);
}
bool Window::set_attributes(Attributes attributes)
void Window::set_attributes(Attributes attributes)
{
WindowPacket::WindowSetAttributes packet;
packet.attributes = attributes;
if (auto ret = packet.send_serialized(m_server_fd); ret.is_error())
{
dprintln("failed to set window attributes: {}", ret.error());
return false;
}
return on_socket_error(__FUNCTION__);
m_attributes = attributes;
return true;
}
void Window::on_socket_error(BAN::StringView function)
{
if (m_handling_socket_error)
return;
m_handling_socket_error = true;
dprintln("Socket error while running Window::{}", function);
if (!m_socket_error_callback)
exit(1);
m_socket_error_callback();
clear();
}
void Window::clear()
{
munmap(m_framebuffer_smo, m_width * m_height * 4);
close(m_server_fd);
m_server_fd = -1;
}
#define TRY_OR_BREAK(...) ({ auto&& e = (__VA_ARGS__); if (e.is_error()) break; e.release_value(); })
@ -328,7 +330,7 @@ namespace LibGUI
auto packet_or_error = recv_packet(m_server_fd);
if (packet_or_error.is_error())
break;
return on_socket_error(__FUNCTION__);
const auto [packet_type, packet_data] = packet_or_error.release_value();
switch (packet_type)

17
userspace/libraries/LibGUI/include/LibGUI/Window.h
View File

@ -57,20 +57,21 @@ namespace LibGUI
// fill_color is used when copying data outside of window bounds
void copy_horizontal_slice(int32_t dst_y, int32_t src_y, uint32_t amount, uint32_t fill_color);
bool invalidate(int32_t x, int32_t y, uint32_t width, uint32_t height);
bool invalidate() { return invalidate(0, 0, width(), height()); }
void invalidate(int32_t x, int32_t y, uint32_t width, uint32_t height);
void invalidate() { return invalidate(0, 0, width(), height()); }
bool set_mouse_capture(bool captured);
void set_mouse_capture(bool captured);
bool set_position(int32_t x, int32_t y);
void set_position(int32_t x, int32_t y);
Attributes get_attributes() const { return m_attributes; }
bool set_attributes(Attributes attributes);
void set_attributes(Attributes attributes);
uint32_t width() const { return m_width; }
uint32_t height() const { return m_height; }
void poll_events();
void set_socket_error_callback(BAN::Function<void()> callback) { m_socket_error_callback = callback; }
void set_close_window_event_callback(BAN::Function<void()> callback) { m_close_window_event_callback = callback; }
void set_key_event_callback(BAN::Function<void(EventPacket::KeyEvent::event_t)> callback) { m_key_event_callback = callback; }
void set_mouse_button_event_callback(BAN::Function<void(EventPacket::MouseButtonEvent::event_t)> callback) { m_mouse_button_event_callback = callback; }
@ -90,9 +91,14 @@ namespace LibGUI
bool clamp_to_framebuffer(int32_t& x, int32_t& y, uint32_t& width, uint32_t& height) const;
void on_socket_error(BAN::StringView function);
void clear();
private:
int m_server_fd;
bool m_handling_socket_error { false };
Attributes m_attributes;
BAN::Vector<uint32_t> m_framebuffer;
@ -100,6 +106,7 @@ namespace LibGUI
uint32_t m_width;
uint32_t m_height;
BAN::Function<void()> m_socket_error_callback;
BAN::Function<void()> m_close_window_event_callback;
BAN::Function<void(EventPacket::KeyEvent::event_t)> m_key_event_callback;
BAN::Function<void(EventPacket::MouseButtonEvent::event_t)> m_mouse_button_event_callback;

3
userspace/programs/TaskBar/main.cpp
View File

@ -53,8 +53,7 @@ int main()
window->fill_rect(text_x, text_y, text_w, text_h, bg_color);
window->draw_text(text, font, text_x, text_y, fg_color);
if (!window->invalidate(text_x, text_y, text_w, text_h))
is_running = false;
window->invalidate(text_x, text_y, text_w, text_h);
};
while (is_running)