107 lines
2.5 KiB
Rust
107 lines
2.5 KiB
Rust
/*! Managing the events belonging to virtual-keyboard interface. */
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use crate::keyboard::{ Modifiers, PressType };
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use crate::submission::Timestamp;
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/// Standard xkb keycode
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type KeyCode = u32;
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/// Gathers stuff defined in C or called by C
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pub mod c {
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use std::ffi::CStr;
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use std::os::raw::{ c_char, c_void };
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use std::ptr;
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#[repr(transparent)]
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#[derive(Clone, Copy)]
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pub struct ZwpVirtualKeyboardV1(*const c_void);
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impl ZwpVirtualKeyboardV1 {
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pub fn null() -> Self {
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Self(ptr::null())
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}
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}
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#[repr(C)]
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pub struct KeyMap {
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fd: u32,
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fd_len: usize,
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}
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impl KeyMap {
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pub fn from_cstr(s: &CStr) -> KeyMap {
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unsafe {
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squeek_key_map_from_str(s.as_ptr())
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}
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}
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}
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impl Drop for KeyMap {
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fn drop(&mut self) {
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unsafe {
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close(self.fd as u32);
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}
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}
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}
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extern "C" {
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// From libc, to let KeyMap get deallocated.
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fn close(fd: u32);
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pub fn eek_virtual_keyboard_v1_key(
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virtual_keyboard: ZwpVirtualKeyboardV1,
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timestamp: u32,
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keycode: u32,
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press: u32,
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);
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pub fn eek_virtual_keyboard_update_keymap(
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virtual_keyboard: ZwpVirtualKeyboardV1,
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keymap: *const KeyMap,
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);
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pub fn eek_virtual_keyboard_set_modifiers(
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virtual_keyboard: ZwpVirtualKeyboardV1,
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modifiers: u32,
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);
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pub fn squeek_key_map_from_str(keymap_str: *const c_char) -> KeyMap;
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}
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}
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/// Layout-independent backend. TODO: Have one instance per program or seat
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pub struct VirtualKeyboard(pub c::ZwpVirtualKeyboardV1);
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impl VirtualKeyboard {
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// TODO: error out if keymap not set
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pub fn switch(
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&self,
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keycode: KeyCode,
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action: PressType,
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timestamp: Timestamp,
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) {
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let keycode = keycode - 8;
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unsafe {
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c::eek_virtual_keyboard_v1_key(
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self.0, timestamp.0, keycode, action.clone() as u32
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);
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}
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}
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pub fn set_modifiers_state(&self, modifiers: Modifiers) {
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let modifiers = modifiers.bits() as u32;
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unsafe {
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c::eek_virtual_keyboard_set_modifiers(self.0, modifiers);
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}
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}
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pub fn update_keymap(&self, keymap: &c::KeyMap) {
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unsafe {
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c::eek_virtual_keyboard_update_keymap(
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self.0,
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keymap as *const c::KeyMap,
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);
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}
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}
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}
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