1#![allow(unused)]
2
3use crate::{
4 Action, AnyWindowHandle, BackgroundExecutor, ClipboardItem, CursorStyle, DisplayId,
5 ForegroundExecutor, Keymap, LinuxDispatcher, LinuxDisplay, LinuxTextSystem, LinuxWindow,
6 LinuxWindowState, LinuxWindowStatePtr, Menu, PathPromptOptions, Platform, PlatformDisplay,
7 PlatformInput, PlatformTextSystem, PlatformWindow, Result, SemanticVersion, Task,
8 WindowOptions,
9};
10
11use collections::{HashMap, HashSet};
12use futures::channel::oneshot;
13use parking_lot::Mutex;
14
15use std::{
16 path::{Path, PathBuf},
17 rc::Rc,
18 sync::Arc,
19 time::Duration,
20};
21use time::UtcOffset;
22use xcb::{x, Xid as _};
23
24xcb::atoms_struct! {
25 #[derive(Debug)]
26 pub(crate) struct XcbAtoms {
27 pub wm_protocols => b"WM_PROTOCOLS",
28 pub wm_del_window => b"WM_DELETE_WINDOW",
29 wm_state => b"_NET_WM_STATE",
30 wm_state_maxv => b"_NET_WM_STATE_MAXIMIZED_VERT",
31 wm_state_maxh => b"_NET_WM_STATE_MAXIMIZED_HORZ",
32 }
33}
34
35pub(crate) struct LinuxPlatform(Mutex<LinuxPlatformState>);
36
37pub(crate) struct LinuxPlatformState {
38 xcb_connection: xcb::Connection,
39 x_root_index: i32,
40 atoms: XcbAtoms,
41 background_executor: BackgroundExecutor,
42 foreground_executor: ForegroundExecutor,
43 windows: HashMap<x::Window, LinuxWindowStatePtr>,
44 text_system: Arc<LinuxTextSystem>,
45}
46
47impl Default for LinuxPlatform {
48 fn default() -> Self {
49 Self::new()
50 }
51}
52
53impl LinuxPlatform {
54 pub(crate) fn new() -> Self {
55 let (xcb_connection, x_root_index) = xcb::Connection::connect(None).unwrap();
56 let atoms = XcbAtoms::intern_all(&xcb_connection).unwrap();
57
58 let dispatcher = Arc::new(LinuxDispatcher::new());
59
60 Self(Mutex::new(LinuxPlatformState {
61 xcb_connection,
62 x_root_index,
63 atoms,
64 background_executor: BackgroundExecutor::new(dispatcher.clone()),
65 foreground_executor: ForegroundExecutor::new(dispatcher),
66 windows: HashMap::default(),
67 text_system: Arc::new(LinuxTextSystem::new()),
68 }))
69 }
70}
71
72impl Platform for LinuxPlatform {
73 fn background_executor(&self) -> BackgroundExecutor {
74 self.0.lock().background_executor.clone()
75 }
76
77 fn foreground_executor(&self) -> crate::ForegroundExecutor {
78 self.0.lock().foreground_executor.clone()
79 }
80
81 fn text_system(&self) -> Arc<dyn PlatformTextSystem> {
82 self.0.lock().text_system.clone()
83 }
84
85 fn run(&self, on_finish_launching: Box<dyn FnOnce()>) {
86 on_finish_launching();
87
88 let mut need_repaint = HashSet::<x::Window>::default();
89
90 while !self.0.lock().windows.is_empty() {
91 let event = self.0.lock().xcb_connection.wait_for_event().unwrap();
92 match event {
93 xcb::Event::X(x::Event::ClientMessage(ev)) => {
94 if let x::ClientMessageData::Data32([atom, ..]) = ev.data() {
95 let mut lock = self.0.lock();
96 if atom == lock.atoms.wm_del_window.resource_id() {
97 // window "x" button clicked by user, we gracefully exit
98 {
99 let mut window = lock.windows[&ev.window()].lock();
100 window.destroy();
101 }
102 lock.windows.remove(&ev.window());
103 break;
104 }
105 }
106 }
107 _ => {} /*
108 Event::Expose(event) => {
109 if event.count == 0 {
110 need_repaint.insert(event.window);
111 }
112 }
113 Event::ConfigureNotify(event) => {
114 let lock = self.0.lock();
115 let mut window = lock.windows[&event.window].lock();
116 window.resize(event.width, event.height);
117 }
118 _ => {}*/
119 }
120
121 for x_window in need_repaint.drain() {
122 let lock = self.0.lock();
123 let mut window = lock.windows[&x_window].lock();
124 window.paint();
125 lock.xcb_connection.flush();
126 }
127 }
128 }
129
130 fn quit(&self) {}
131
132 fn restart(&self) {}
133
134 fn activate(&self, ignoring_other_apps: bool) {}
135
136 fn hide(&self) {}
137
138 fn hide_other_apps(&self) {}
139
140 fn unhide_other_apps(&self) {}
141
142 fn displays(&self) -> Vec<Rc<dyn PlatformDisplay>> {
143 let lock = self.0.lock();
144 let setup = lock.xcb_connection.get_setup();
145 setup
146 .roots()
147 .enumerate()
148 .map(|(root_id, _)| {
149 Rc::new(LinuxDisplay::new(&lock.xcb_connection, root_id as i32))
150 as Rc<dyn PlatformDisplay>
151 })
152 .collect()
153 }
154
155 fn display(&self, id: DisplayId) -> Option<Rc<dyn PlatformDisplay>> {
156 let lock = self.0.lock();
157 Some(Rc::new(LinuxDisplay::new(
158 &lock.xcb_connection,
159 id.0 as i32,
160 )))
161 }
162
163 fn active_window(&self) -> Option<AnyWindowHandle> {
164 None
165 }
166
167 fn open_window(
168 &self,
169 handle: AnyWindowHandle,
170 options: WindowOptions,
171 ) -> Box<dyn PlatformWindow> {
172 let mut lock = self.0.lock();
173 let x_window = lock.xcb_connection.generate_id();
174
175 let window_ptr = LinuxWindowState::new_ptr(
176 options,
177 handle,
178 &lock.xcb_connection,
179 lock.x_root_index,
180 x_window,
181 &lock.atoms,
182 );
183 lock.windows.insert(x_window, window_ptr.clone());
184 Box::new(LinuxWindow(window_ptr))
185 }
186
187 fn set_display_link_output_callback(
188 &self,
189 display_id: DisplayId,
190 callback: Box<dyn FnMut() + Send>,
191 ) {
192 unimplemented!()
193 }
194
195 fn start_display_link(&self, display_id: DisplayId) {}
196
197 fn stop_display_link(&self, display_id: DisplayId) {}
198
199 fn open_url(&self, url: &str) {}
200
201 fn on_open_urls(&self, callback: Box<dyn FnMut(Vec<String>)>) {}
202
203 fn prompt_for_paths(
204 &self,
205 options: PathPromptOptions,
206 ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
207 unimplemented!()
208 }
209
210 fn prompt_for_new_path(&self, directory: &Path) -> oneshot::Receiver<Option<PathBuf>> {
211 unimplemented!()
212 }
213
214 fn reveal_path(&self, path: &Path) {}
215
216 fn on_become_active(&self, callback: Box<dyn FnMut()>) {}
217
218 fn on_resign_active(&self, callback: Box<dyn FnMut()>) {}
219
220 fn on_quit(&self, callback: Box<dyn FnMut()>) {}
221
222 fn on_reopen(&self, callback: Box<dyn FnMut()>) {}
223
224 fn on_event(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>) {}
225
226 fn on_app_menu_action(&self, callback: Box<dyn FnMut(&dyn Action)>) {}
227
228 fn on_will_open_app_menu(&self, callback: Box<dyn FnMut()>) {}
229
230 fn on_validate_app_menu_command(&self, callback: Box<dyn FnMut(&dyn Action) -> bool>) {}
231
232 fn os_name(&self) -> &'static str {
233 "Linux"
234 }
235
236 fn double_click_interval(&self) -> Duration {
237 Duration::default()
238 }
239
240 fn os_version(&self) -> Result<SemanticVersion> {
241 Ok(SemanticVersion {
242 major: 1,
243 minor: 0,
244 patch: 0,
245 })
246 }
247
248 fn app_version(&self) -> Result<SemanticVersion> {
249 Ok(SemanticVersion {
250 major: 1,
251 minor: 0,
252 patch: 0,
253 })
254 }
255
256 fn app_path(&self) -> Result<PathBuf> {
257 unimplemented!()
258 }
259
260 fn set_menus(&self, menus: Vec<Menu>, keymap: &Keymap) {}
261
262 fn local_timezone(&self) -> UtcOffset {
263 UtcOffset::UTC
264 }
265
266 fn path_for_auxiliary_executable(&self, name: &str) -> Result<PathBuf> {
267 unimplemented!()
268 }
269
270 fn set_cursor_style(&self, style: CursorStyle) {}
271
272 fn should_auto_hide_scrollbars(&self) -> bool {
273 false
274 }
275
276 fn write_to_clipboard(&self, item: ClipboardItem) {}
277
278 fn read_from_clipboard(&self) -> Option<ClipboardItem> {
279 None
280 }
281
282 fn write_credentials(&self, url: &str, username: &str, password: &[u8]) -> Task<Result<()>> {
283 unimplemented!()
284 }
285
286 fn read_credentials(&self, url: &str) -> Task<Result<Option<(String, Vec<u8>)>>> {
287 unimplemented!()
288 }
289
290 fn delete_credentials(&self, url: &str) -> Task<Result<()>> {
291 unimplemented!()
292 }
293}
294
295#[cfg(test)]
296mod tests {
297 use crate::ClipboardItem;
298
299 use super::*;
300
301 fn build_platform() -> LinuxPlatform {
302 let platform = LinuxPlatform::new();
303 platform
304 }
305}