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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179

//! Wayland specific shell
//!

use std::collections::HashMap;

use iced_graphics::Compositor;
use iced_runtime::{core::window, user_interface, Debug};

#[cfg(all(feature = "wayland", target_os = "linux"))]
pub mod wayland;

#[cfg(all(feature = "wayland", target_os = "linux"))]
pub use wayland::*;
#[cfg(all(feature = "wayland", target_os = "linux"))]
use wayland_backend::client::Backend;

use crate::{program::WindowManager, Program};

#[derive(Debug)]
pub enum Event {
    #[cfg(all(feature = "wayland", target_os = "linux"))]
    Wayland(sctk_event::SctkEvent),
}

#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum SurfaceIdWrapper {
    LayerSurface(window::Id),
    Window(window::Id),
    Popup(window::Id),
    SessionLock(window::Id),
}
impl SurfaceIdWrapper {
    pub fn inner(&self) -> window::Id {
        match self {
            SurfaceIdWrapper::LayerSurface(id) => *id,
            SurfaceIdWrapper::Window(id) => *id,
            SurfaceIdWrapper::Popup(id) => *id,
            SurfaceIdWrapper::SessionLock(id) => *id,
        }
    }
}

#[derive(Debug, Default)]
pub struct PlatformSpecific {
    #[cfg(all(feature = "wayland", target_os = "linux"))]
    wayland: WaylandSpecific,
}

impl PlatformSpecific {
    pub(crate) fn send_action(
        &mut self,
        action: iced_runtime::platform_specific::Action,
    ) {
        match action {
            #[cfg(all(feature = "wayland", target_os = "linux"))]
            iced_runtime::platform_specific::Action::Wayland(a) => {
                self.send_wayland(wayland::Action::Action(a));
            }
        }
    }

    pub(crate) fn update_subsurfaces(
        &mut self,
        id: window::Id,
        window: &dyn winit::window::Window,
    ) {
        #[cfg(all(feature = "wayland", target_os = "linux"))]
        {
            use sctk::reexports::client::{
                protocol::wl_surface::WlSurface, Proxy,
            };
            use wayland_backend::client::ObjectId;

            let Ok(backend) = window.rwh_06_display_handle().display_handle()
            else {
                log::error!("No display handle");
                return;
            };

            let conn = match backend.as_raw() {
                raw_window_handle::RawDisplayHandle::Wayland(
                    wayland_display_handle,
                ) => {
                    let backend = unsafe {
                        Backend::from_foreign_display(
                            wayland_display_handle.display.as_ptr().cast(),
                        )
                    };
                    sctk::reexports::client::Connection::from_backend(backend)
                }
                _ => {
                    return;
                }
            };

            let Ok(raw) = window.rwh_06_window_handle().window_handle() else {
                log::error!("Invalid window handle {id:?}");
                return;
            };
            let wl_surface = match raw.as_raw() {
                raw_window_handle::RawWindowHandle::Wayland(
                    wayland_window_handle,
                ) => {
                    let res = unsafe {
                        ObjectId::from_ptr(
                            WlSurface::interface(),
                            wayland_window_handle.surface.as_ptr().cast(),
                        )
                    };
                    let Ok(id) = res else {
                        log::error!(
                            "Could not create WlSurface Id from window"
                        );
                        return;
                    };
                    let Ok(surface) = WlSurface::from_id(&conn, id) else {
                        log::error!("Could not create WlSurface from Id");
                        return;
                    };
                    surface
                }

                _ => {
                    log::error!("Unexpected window handle type");
                    return;
                }
            };
            self.wayland.update_subsurfaces(id, &wl_surface);
        }
    }
}

pub type UserInterfaces<'a, P> = HashMap<
    window::Id,
    user_interface::UserInterface<
        'a,
        <P as Program>::Message,
        <P as Program>::Theme,
        <P as Program>::Renderer,
    >,
    rustc_hash::FxBuildHasher,
>;

pub(crate) fn handle_event<'a, P, C>(
    e: Event,
    events: &mut Vec<(Option<window::Id>, iced_runtime::core::Event)>,
    platform_specific: &mut PlatformSpecific,
    program: &'a P,
    compositor: &mut C,
    window_manager: &mut WindowManager<P, C>,
    debug: &mut Debug,
    user_interfaces: &mut UserInterfaces<'a, P>,
    clipboard: &mut crate::Clipboard,
    #[cfg(feature = "a11y")] adapters: &mut std::collections::HashMap<
        window::Id,
        (u64, iced_accessibility::accesskit_winit::Adapter),
    >,
) where
    P: Program,
    C: Compositor<Renderer = P::Renderer>,
{
    match e {
        #[cfg(all(feature = "wayland", target_os = "linux"))]
        Event::Wayland(e) => {
            platform_specific.wayland.handle_event(
                e,
                events,
                program,
                compositor,
                window_manager,
                debug,
                user_interfaces,
                clipboard,
                #[cfg(feature = "a11y")]
                adapters,
            );
        }
    }
}