1use std::collections::HashMap;
2use std::mem;
3use std::sync::Arc;
4
5use super::{ffi, XConnection, XError};
6
7use super::context::ImeContext;
8use super::input_method::{InputMethod, PotentialInputMethods};
9use crate::platform_impl::platform::x11::ime::ImeEventSender;
10
11pub(crate) unsafe fn close_im(xconn: &Arc<XConnection>, im: ffi::XIM) -> Result<(), XError> {
12 unsafe { (xconn.xlib.XCloseIM)(im) };
13 xconn.check_errors()
14}
15
16pub(crate) unsafe fn destroy_ic(xconn: &Arc<XConnection>, ic: ffi::XIC) -> Result<(), XError> {
17 unsafe { (xconn.xlib.XDestroyIC)(ic) };
18 xconn.check_errors()
19}
20
21pub(crate) struct ImeInner {
22 pub xconn: Arc<XConnection>,
23 pub im: Option<InputMethod>,
24 pub potential_input_methods: PotentialInputMethods,
25 pub contexts: HashMap<ffi::Window, Option<ImeContext>>,
26 // WARNING: this is initially zeroed!
27 pub destroy_callback: ffi::XIMCallback,
28 pub event_sender: ImeEventSender,
29 // Indicates whether or not the input method was destroyed on the server end
30 // (i.e. if ibus/fcitx/etc. was terminated/restarted)
31 pub is_destroyed: bool,
32 pub is_fallback: bool,
33}
34
35impl ImeInner {
36 pub(crate) fn new(
37 xconn: Arc<XConnection>,
38 potential_input_methods: PotentialInputMethods,
39 event_sender: ImeEventSender,
40 ) -> Self {
41 ImeInner {
42 xconn,
43 im: None,
44 potential_input_methods,
45 contexts: HashMap::new(),
46 destroy_callback: unsafe { mem::zeroed() },
47 event_sender,
48 is_destroyed: false,
49 is_fallback: false,
50 }
51 }
52
53 pub unsafe fn close_im_if_necessary(&self) -> Result<bool, XError> {
54 if !self.is_destroyed && self.im.is_some() {
55 unsafe { close_im(&self.xconn, self.im.as_ref().unwrap().im) }.map(|_| true)
56 } else {
57 Ok(false)
58 }
59 }
60
61 pub unsafe fn destroy_ic_if_necessary(&self, ic: ffi::XIC) -> Result<bool, XError> {
62 if !self.is_destroyed {
63 unsafe { destroy_ic(&self.xconn, ic) }.map(|_| true)
64 } else {
65 Ok(false)
66 }
67 }
68
69 pub unsafe fn destroy_all_contexts_if_necessary(&self) -> Result<bool, XError> {
70 for context in self.contexts.values().flatten() {
71 unsafe { self.destroy_ic_if_necessary(context.ic)? };
72 }
73 Ok(!self.is_destroyed)
74 }
75}
76