i3bar-river 0.1.2

A port of i3bar for river
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140

use std::ffi::CString;

use wayrs_client::connection::Connection;
use wayrs_client::{cstr, global::*};

use super::*;
use crate::state::State;

pub struct RiverInfoProvider {
    status_manager: ZriverStatusManagerV1,
    control: ZriverControlV1,
    output_statuses: Vec<OutputStatus>,
    callback: WmInfoCallback,
}

struct OutputStatus {
    output: WlOutput,
    status: ZriverOutputStatusV1,
    focused_tags: u32,
    urgent_tags: u32,
    active_tags: u32,
    layout_name: Option<String>,
}

impl RiverInfoProvider {
    pub fn bind(
        conn: &mut Connection<State>,
        globals: &Globals,
        callback: WmInfoCallback,
    ) -> Option<Self> {
        Some(Self {
            status_manager: globals.bind(conn, 1..=4).ok()?,
            control: globals.bind(conn, 1..=1).ok()?,
            output_statuses: Vec::new(),
            callback,
        })
    }
}

impl RiverInfoProvider {
    pub fn new_output(&mut self, conn: &mut Connection<State>, output: WlOutput) {
        let status =
            self.status_manager
                .get_river_output_status_with_cb(conn, output, output_status_cb);
        self.output_statuses.push(OutputStatus {
            output,
            status,
            focused_tags: 0,
            urgent_tags: 0,
            active_tags: 0,
            layout_name: None,
        });
    }

    pub fn output_removed(&mut self, conn: &mut Connection<State>, output: WlOutput) {
        let index = self
            .output_statuses
            .iter()
            .position(|s| s.output == output)
            .unwrap();
        let output_status = self.output_statuses.swap_remove(index);
        output_status.status.destroy(conn);
    }

    pub fn click_on_tag(
        &mut self,
        conn: &mut Connection<State>,
        _: WlOutput,
        seat: WlSeat,
        tag: &str,
        btn: PointerBtn,
    ) {
        let tag: u32 = tag.parse().unwrap();
        let cmd = match btn {
            PointerBtn::Left => cstr!("set-focused-tags"),
            PointerBtn::Right => cstr!("toggle-focused-tags"),
            _ => return,
        };
        self.control.add_argument(conn, cmd.to_owned());
        self.control
            .add_argument(conn, CString::new((1u32 << (tag - 1)).to_string()).unwrap());
        self.control
            .run_command_with_cb(conn, seat, river_command_cb);
    }
}

fn output_status_cb(
    conn: &mut Connection<State>,
    state: &mut State,
    output_status: ZriverOutputStatusV1,
    event: zriver_output_status_v1::Event,
) {
    let WmInfoProvider::River(river) = &mut state.shared_state.wm_info_provider else { unreachable!() };

    let status = river
        .output_statuses
        .iter_mut()
        .find(|s| s.status == output_status)
        .unwrap();

    use zriver_output_status_v1::Event;
    match event {
        Event::FocusedTags(tags) => status.focused_tags = tags,
        Event::ViewTags(tags) => {
            status.active_tags = tags
                .chunks_exact(4)
                .map(|bytes| u32::from_ne_bytes(bytes.try_into().unwrap()))
                .fold(0, |a, b| a | b);
        }
        Event::UrgentTags(tags) => status.urgent_tags = tags,
        Event::LayoutName(ln) => status.layout_name = Some(ln.to_string_lossy().into()),
        Event::LayoutNameClear => status.layout_name = None,
    }

    let info = WmInfo {
        layout_name: status.layout_name.clone(),
        tags: (1..10)
            .map(|tag| Tag {
                name: tag.to_string(),
                is_focused: status.focused_tags & (1 << (tag - 1)) != 0,
                is_active: status.active_tags & (1 << (tag - 1)) != 0,
                is_urgent: status.urgent_tags & (1 << (tag - 1)) != 0,
            })
            .collect(),
    };

    let output = status.output;
    (river.callback)(conn, state, output, info);
}

fn river_command_cb(
    conn: &mut Connection<State>,
    state: &mut State,
    _: ZriverCommandCallbackV1,
    event: zriver_command_callback_v1::Event,
) {
    if let zriver_command_callback_v1::Event::Failure(msg) = event {
        state.set_error(conn, msg.to_string_lossy())
    }
}