smithay_client_toolkit/shell/xdg/window/
inner.rs

1use std::{
2    convert::{TryFrom, TryInto},
3    num::NonZeroU32,
4    sync::Mutex,
5};
6
7use wayland_client::{Connection, QueueHandle};
8use wayland_protocols::{
9    xdg::decoration::zv1::client::{
10        zxdg_decoration_manager_v1,
11        zxdg_toplevel_decoration_v1::{self, Mode},
12    },
13    xdg::shell::client::{
14        xdg_surface,
15        xdg_toplevel::{self, State, WmCapabilities},
16    },
17};
18
19use crate::{
20    dispatch2::Dispatch2,
21    error::GlobalError,
22    globals::{GlobalData, ProvidesBoundGlobal},
23    shell::xdg::{XdgShell, XdgShellSurface},
24};
25
26use super::{
27    DecorationMode, Window, WindowConfigure, WindowData, WindowHandler, WindowManagerCapabilities,
28    WindowState,
29};
30
31impl Drop for WindowInner {
32    fn drop(&mut self) {
33        // XDG decoration says we must destroy the decoration object before the toplevel
34        if let Some(toplevel_decoration) = self.toplevel_decoration.as_ref() {
35            toplevel_decoration.destroy();
36        }
37
38        // XDG Shell protocol dictates we must destroy the role object before the xdg surface.
39        self.xdg_toplevel.destroy();
40        // XdgShellSurface will do it's own drop
41        // self.xdg_surface.destroy();
42    }
43}
44
45#[derive(Debug)]
46pub struct WindowInner {
47    pub xdg_surface: XdgShellSurface,
48    pub xdg_toplevel: xdg_toplevel::XdgToplevel,
49    pub toplevel_decoration: Option<zxdg_toplevel_decoration_v1::ZxdgToplevelDecorationV1>,
50    pub pending_configure: Mutex<WindowConfigure>,
51}
52
53impl ProvidesBoundGlobal<zxdg_decoration_manager_v1::ZxdgDecorationManagerV1, 1> for XdgShell {
54    fn bound_global(
55        &self,
56    ) -> Result<zxdg_decoration_manager_v1::ZxdgDecorationManagerV1, GlobalError> {
57        self.xdg_decoration_manager.get().cloned()
58    }
59}
60
61impl<D> Dispatch2<xdg_surface::XdgSurface, D> for WindowData
62where
63    D: WindowHandler,
64{
65    fn event(
66        &self,
67        data: &mut D,
68        xdg_surface: &xdg_surface::XdgSurface,
69        event: xdg_surface::Event,
70        conn: &Connection,
71        qh: &QueueHandle<D>,
72    ) {
73        if let Some(window) = Window::from_xdg_surface(xdg_surface) {
74            match event {
75                xdg_surface::Event::Configure { serial } => {
76                    // Acknowledge the configure per protocol requirements.
77                    xdg_surface.ack_configure(serial);
78
79                    let configure = { window.0.pending_configure.lock().unwrap().clone() };
80                    WindowHandler::configure(data, conn, qh, &window, configure, serial);
81                }
82
83                _ => unreachable!(),
84            }
85        }
86    }
87}
88
89impl<D> Dispatch2<xdg_toplevel::XdgToplevel, D> for WindowData
90where
91    D: WindowHandler,
92{
93    fn event(
94        &self,
95        data: &mut D,
96        toplevel: &xdg_toplevel::XdgToplevel,
97        event: xdg_toplevel::Event,
98        conn: &Connection,
99        qh: &QueueHandle<D>,
100    ) {
101        if let Some(window) = Window::from_xdg_toplevel(toplevel) {
102            match event {
103                xdg_toplevel::Event::Configure { width, height, states } => {
104                    // The states are encoded as a bunch of u32 of native endian, but are encoded in an array of
105                    // bytes.
106                    let new_state = states
107                        .chunks_exact(4)
108                        .flat_map(TryInto::<[u8; 4]>::try_into)
109                        .map(u32::from_ne_bytes)
110                        .flat_map(State::try_from)
111                        .fold(WindowState::empty(), |mut acc, state| {
112                            match state {
113                                State::Maximized => acc.set(WindowState::MAXIMIZED, true),
114                                State::Fullscreen => acc.set(WindowState::FULLSCREEN, true),
115                                State::Resizing => acc.set(WindowState::RESIZING, true),
116                                State::Activated => acc.set(WindowState::ACTIVATED, true),
117                                State::TiledLeft => acc.set(WindowState::TILED_LEFT, true),
118                                State::TiledRight => acc.set(WindowState::TILED_RIGHT, true),
119                                State::TiledTop => acc.set(WindowState::TILED_TOP, true),
120                                State::TiledBottom => acc.set(WindowState::TILED_BOTTOM, true),
121                                State::Suspended => acc.set(WindowState::SUSPENDED, true),
122                                _ => (),
123                            }
124                            acc
125                        });
126
127                    // XXX we do explicit convertion and sanity checking because compositor
128                    // could pass negative values which we should ignore all together.
129                    let width = u32::try_from(width).ok().and_then(NonZeroU32::new);
130                    let height = u32::try_from(height).ok().and_then(NonZeroU32::new);
131
132                    let pending_configure = &mut window.0.pending_configure.lock().unwrap();
133                    pending_configure.new_size = (width, height);
134                    pending_configure.state = new_state;
135                }
136
137                xdg_toplevel::Event::Close => {
138                    data.request_close(conn, qh, &window);
139                }
140
141                xdg_toplevel::Event::ConfigureBounds { width, height } => {
142                    let pending_configure = &mut window.0.pending_configure.lock().unwrap();
143                    if width == 0 && height == 0 {
144                        pending_configure.suggested_bounds = None;
145                    } else {
146                        pending_configure.suggested_bounds = Some((width as u32, height as u32));
147                    }
148                }
149                xdg_toplevel::Event::WmCapabilities { capabilities } => {
150                    let pending_configure = &mut window.0.pending_configure.lock().unwrap();
151                    pending_configure.capabilities = capabilities
152                        .chunks_exact(4)
153                        .flat_map(TryInto::<[u8; 4]>::try_into)
154                        .map(u32::from_ne_bytes)
155                        .flat_map(WmCapabilities::try_from)
156                        .fold(WindowManagerCapabilities::empty(), |mut acc, capability| {
157                            match capability {
158                                WmCapabilities::WindowMenu => {
159                                    acc.set(WindowManagerCapabilities::WINDOW_MENU, true)
160                                }
161                                WmCapabilities::Maximize => {
162                                    acc.set(WindowManagerCapabilities::MAXIMIZE, true)
163                                }
164                                WmCapabilities::Fullscreen => {
165                                    acc.set(WindowManagerCapabilities::FULLSCREEN, true)
166                                }
167                                WmCapabilities::Minimize => {
168                                    acc.set(WindowManagerCapabilities::MINIMIZE, true)
169                                }
170                                _ => (),
171                            }
172                            acc
173                        });
174                }
175                _ => unreachable!(),
176            }
177        }
178    }
179}
180
181// XDG decoration
182
183impl<D> Dispatch2<zxdg_decoration_manager_v1::ZxdgDecorationManagerV1, D> for GlobalData
184where
185    D: WindowHandler,
186{
187    fn event(
188        &self,
189        _: &mut D,
190        _: &zxdg_decoration_manager_v1::ZxdgDecorationManagerV1,
191        _: zxdg_decoration_manager_v1::Event,
192        _: &Connection,
193        _: &QueueHandle<D>,
194    ) {
195        unreachable!("zxdg_decoration_manager_v1 has no events")
196    }
197}
198
199impl<D> Dispatch2<zxdg_toplevel_decoration_v1::ZxdgToplevelDecorationV1, D> for WindowData
200where
201    D: WindowHandler,
202{
203    fn event(
204        &self,
205        _: &mut D,
206        decoration: &zxdg_toplevel_decoration_v1::ZxdgToplevelDecorationV1,
207        event: zxdg_toplevel_decoration_v1::Event,
208        _: &Connection,
209        _: &QueueHandle<D>,
210    ) {
211        if let Some(window) = Window::from_toplevel_decoration(decoration) {
212            match event {
213                zxdg_toplevel_decoration_v1::Event::Configure { mode } => match mode {
214                    wayland_client::WEnum::Value(mode) => {
215                        let mode = match mode {
216                            Mode::ClientSide => DecorationMode::Client,
217                            Mode::ServerSide => DecorationMode::Server,
218
219                            _ => unreachable!(),
220                        };
221
222                        window.0.pending_configure.lock().unwrap().decoration_mode = mode;
223                    }
224
225                    wayland_client::WEnum::Unknown(unknown) => {
226                        log::error!(target: "sctk", "unknown decoration mode 0x{:x}", unknown);
227                    }
228                },
229
230                _ => unreachable!(),
231            }
232        }
233    }
234}
smithay_client_toolkit/shell/xdg/window/inner.rs

smithay_client_toolkit/shell/xdg/window/
inner.rs
