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// yt - A fully featured command line YouTube client
//
// Copyright (C) 2025 softprops <d.tangren@gmail.com>
// SPDX-License-Identifier: MIT
//
// This file is part of Yt.
//
// You should have received a copy of the License along with this program.
// If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.
use std::ptr;
use winapi::um::{
fileapi::{CreateFileA, OPEN_EXISTING},
handleapi::INVALID_HANDLE_VALUE,
wincon::{GetConsoleScreenBufferInfo, CONSOLE_SCREEN_BUFFER_INFO},
winnt::{FILE_SHARE_WRITE, GENERIC_READ, GENERIC_WRITE},
};
use self::super::Size;
/// Gets the current terminal size
pub fn get() -> Option<Size> {
// http://rosettacode.org/wiki/Terminal_control/Dimensions#Windows
let handle = unsafe {
CreateFileA(
b"CONOUT$\0".as_ptr() as *const i8,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_WRITE,
ptr::null_mut(),
OPEN_EXISTING,
0,
ptr::null_mut(),
)
};
if handle == INVALID_HANDLE_VALUE {
return None;
}
let info = unsafe {
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms683171(v=vs.85).aspx
let mut info = ::std::mem::MaybeUninit::<CONSOLE_SCREEN_BUFFER_INFO>::uninit();
if GetConsoleScreenBufferInfo(handle, info.as_mut_ptr()) == 0 {
None
} else {
Some(info.assume_init())
}
};
info.map(|inf| Size {
rows: (inf.srWindow.Bottom - inf.srWindow.Top + 1) as u16,
cols: (inf.srWindow.Right - inf.srWindow.Left + 1) as u16,
})
}
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