Luna/apps/mouse.cpp

#include <luna/String.h>
#include <moon/Mouse.h>
#include <os/File.h>

Result<int> luna_main(int, char**)
{
    auto mouse = TRY(os::File::open("/dev/mouse", os::File::ReadOnly));
    mouse->set_buffer(os::File::NotBuffered);

    while (1)
    {
        moon::MousePacket packet;
        TRY(mouse->read_typed(packet));

        bool right = packet.buttons & moon::MouseButton::Right;
        bool left = packet.buttons & moon::MouseButton::Left;
        bool middle = packet.buttons & moon::MouseButton::Middle;

        Vector<StringView> buttons;
        if (right) TRY(buttons.try_append("RIGHT"_sv));
        if (left) TRY(buttons.try_append("LEFT"_sv));
        if (middle) TRY(buttons.try_append("MIDDLE"_sv));

        String button_string;
        if (!buttons.size()) button_string = TRY(String::from_cstring("NONE"));
        else
            button_string = TRY(String::join(buttons, " | "_sv));

        os::println("Mouse packet: xdelta=%d, ydelta=%d, buttons=(%s)", packet.xdelta, packet.ydelta,
                    button_string.chars());
    }
}