1use std::any::Any;
2use std::ffi::c_void;
3use std::rc::Rc;
4use std::sync::Arc;
5
6use blade_graphics as gpu;
7use blade_rwh::{HasRawDisplayHandle, HasRawWindowHandle, RawDisplayHandle, RawWindowHandle};
8use futures::channel::oneshot::Receiver;
9use parking_lot::Mutex;
10use raw_window_handle::{
11 DisplayHandle, HandleError, HasDisplayHandle, HasWindowHandle, WindowHandle,
12};
13use wayland_client::{protocol::wl_surface, Proxy};
14use wayland_protocols::wp::viewporter::client::wp_viewport;
15use wayland_protocols::xdg::shell::client::xdg_toplevel;
16
17use crate::platform::blade::BladeRenderer;
18use crate::platform::linux::wayland::display::WaylandDisplay;
19use crate::platform::{PlatformAtlas, PlatformInputHandler, PlatformWindow};
20use crate::scene::Scene;
21use crate::{
22 px, size, Bounds, Modifiers, Pixels, PlatformDisplay, PlatformInput, Point, PromptLevel, Size,
23 WindowAppearance, WindowBounds, WindowOptions,
24};
25
26#[derive(Default)]
27pub(crate) struct Callbacks {
28 request_frame: Option<Box<dyn FnMut()>>,
29 input: Option<Box<dyn FnMut(crate::PlatformInput) -> bool>>,
30 active_status_change: Option<Box<dyn FnMut(bool)>>,
31 resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
32 fullscreen: Option<Box<dyn FnMut(bool)>>,
33 moved: Option<Box<dyn FnMut()>>,
34 should_close: Option<Box<dyn FnMut() -> bool>>,
35 close: Option<Box<dyn FnOnce()>>,
36 appearance_changed: Option<Box<dyn FnMut()>>,
37}
38
39struct WaylandWindowInner {
40 renderer: BladeRenderer,
41 bounds: Bounds<i32>,
42 scale: f32,
43 input_handler: Option<PlatformInputHandler>,
44 decoration_state: WaylandDecorationState,
45}
46
47struct RawWindow {
48 window: *mut c_void,
49 display: *mut c_void,
50}
51
52unsafe impl HasRawWindowHandle for RawWindow {
53 fn raw_window_handle(&self) -> RawWindowHandle {
54 let mut wh = blade_rwh::WaylandWindowHandle::empty();
55 wh.surface = self.window;
56 wh.into()
57 }
58}
59
60unsafe impl HasRawDisplayHandle for RawWindow {
61 fn raw_display_handle(&self) -> RawDisplayHandle {
62 let mut dh = blade_rwh::WaylandDisplayHandle::empty();
63 dh.display = self.display;
64 dh.into()
65 }
66}
67
68impl WaylandWindowInner {
69 fn new(
70 conn: &Arc<wayland_client::Connection>,
71 wl_surf: &Arc<wl_surface::WlSurface>,
72 bounds: Bounds<i32>,
73 ) -> Self {
74 let raw = RawWindow {
75 window: wl_surf.id().as_ptr().cast::<c_void>(),
76 display: conn.backend().display_ptr().cast::<c_void>(),
77 };
78 let gpu = Arc::new(
79 unsafe {
80 gpu::Context::init_windowed(
81 &raw,
82 gpu::ContextDesc {
83 validation: false,
84 capture: false,
85 },
86 )
87 }
88 .unwrap(),
89 );
90 let extent = gpu::Extent {
91 width: bounds.size.width as u32,
92 height: bounds.size.height as u32,
93 depth: 1,
94 };
95 Self {
96 renderer: BladeRenderer::new(gpu, extent),
97 bounds,
98 scale: 1.0,
99 input_handler: None,
100
101 // On wayland, decorations are by default provided by the client
102 decoration_state: WaylandDecorationState::Client,
103 }
104 }
105}
106
107pub(crate) struct WaylandWindowState {
108 conn: Arc<wayland_client::Connection>,
109 inner: Mutex<WaylandWindowInner>,
110 pub(crate) callbacks: Mutex<Callbacks>,
111 pub(crate) surface: Arc<wl_surface::WlSurface>,
112 pub(crate) toplevel: Arc<xdg_toplevel::XdgToplevel>,
113 viewport: Option<wp_viewport::WpViewport>,
114}
115
116impl WaylandWindowState {
117 pub(crate) fn new(
118 conn: &Arc<wayland_client::Connection>,
119 wl_surf: Arc<wl_surface::WlSurface>,
120 viewport: Option<wp_viewport::WpViewport>,
121 toplevel: Arc<xdg_toplevel::XdgToplevel>,
122 options: WindowOptions,
123 ) -> Self {
124 if options.bounds == WindowBounds::Maximized {
125 toplevel.set_maximized();
126 } else if options.bounds == WindowBounds::Fullscreen {
127 toplevel.set_fullscreen(None);
128 }
129
130 let bounds: Bounds<i32> = match options.bounds {
131 WindowBounds::Fullscreen | WindowBounds::Maximized => Bounds {
132 origin: Point::default(),
133 size: Size {
134 width: 500,
135 height: 500,
136 }, //todo!(implement)
137 },
138 WindowBounds::Fixed(bounds) => bounds.map(|p| p.0 as i32),
139 };
140
141 Self {
142 conn: Arc::clone(conn),
143 surface: Arc::clone(&wl_surf),
144 inner: Mutex::new(WaylandWindowInner::new(&Arc::clone(conn), &wl_surf, bounds)),
145 callbacks: Mutex::new(Callbacks::default()),
146 toplevel,
147 viewport,
148 }
149 }
150
151 pub fn update(&self) {
152 let mut cb = self.callbacks.lock();
153 if let Some(mut fun) = cb.request_frame.take() {
154 drop(cb);
155 fun();
156 self.callbacks.lock().request_frame = Some(fun);
157 }
158 }
159
160 pub fn set_size_and_scale(&self, width: i32, height: i32, scale: f32) {
161 self.inner.lock().scale = scale;
162 self.inner.lock().bounds.size.width = width;
163 self.inner.lock().bounds.size.height = height;
164 self.inner.lock().renderer.update_drawable_size(size(
165 width as f64 * scale as f64,
166 height as f64 * scale as f64,
167 ));
168
169 if let Some(ref mut fun) = self.callbacks.lock().resize {
170 fun(
171 Size {
172 width: px(width as f32),
173 height: px(height as f32),
174 },
175 scale,
176 );
177 }
178
179 if let Some(viewport) = &self.viewport {
180 viewport.set_destination(width, height);
181 }
182 }
183
184 pub fn resize(&self, width: i32, height: i32) {
185 let scale = self.inner.lock().scale;
186 self.set_size_and_scale(width, height, scale);
187 }
188
189 pub fn rescale(&self, scale: f32) {
190 let bounds = self.inner.lock().bounds;
191 self.set_size_and_scale(bounds.size.width, bounds.size.height, scale)
192 }
193
194 /// Notifies the window of the state of the decorations.
195 ///
196 /// # Note
197 ///
198 /// This API is indirectly called by the wayland compositor and
199 /// not meant to be called by a user who wishes to change the state
200 /// of the decorations. This is because the state of the decorations
201 /// is managed by the compositor and not the client.
202 pub fn set_decoration_state(&self, state: WaylandDecorationState) {
203 self.inner.lock().decoration_state = state;
204 log::trace!("Window decorations are now handled by {:?}", state);
205 // todo!(linux) - Handle this properly
206 }
207
208 pub fn close(&self) {
209 let mut callbacks = self.callbacks.lock();
210 if let Some(fun) = callbacks.close.take() {
211 fun()
212 }
213 self.toplevel.destroy();
214 }
215
216 pub fn handle_input(&self, input: PlatformInput) {
217 if let Some(ref mut fun) = self.callbacks.lock().input {
218 if fun(input.clone()) {
219 return;
220 }
221 }
222 if let PlatformInput::KeyDown(event) = input {
223 let mut inner = self.inner.lock();
224 if let Some(ref mut input_handler) = inner.input_handler {
225 if let Some(ime_key) = &event.keystroke.ime_key {
226 input_handler.replace_text_in_range(None, ime_key);
227 }
228 }
229 }
230 }
231}
232
233#[derive(Clone)]
234pub(crate) struct WaylandWindow(pub(crate) Rc<WaylandWindowState>);
235
236impl HasWindowHandle for WaylandWindow {
237 fn window_handle(&self) -> Result<WindowHandle<'_>, HandleError> {
238 unimplemented!()
239 }
240}
241
242impl HasDisplayHandle for WaylandWindow {
243 fn display_handle(&self) -> Result<DisplayHandle<'_>, HandleError> {
244 unimplemented!()
245 }
246}
247
248impl PlatformWindow for WaylandWindow {
249 //todo!(linux)
250 fn bounds(&self) -> WindowBounds {
251 WindowBounds::Maximized
252 }
253
254 fn content_size(&self) -> Size<Pixels> {
255 let inner = self.0.inner.lock();
256 Size {
257 width: Pixels(inner.bounds.size.width as f32),
258 height: Pixels(inner.bounds.size.height as f32),
259 }
260 }
261
262 fn scale_factor(&self) -> f32 {
263 self.0.inner.lock().scale
264 }
265
266 //todo!(linux)
267 fn titlebar_height(&self) -> Pixels {
268 unimplemented!()
269 }
270
271 // todo!(linux)
272 fn appearance(&self) -> WindowAppearance {
273 WindowAppearance::Light
274 }
275
276 // todo!(linux)
277 fn display(&self) -> Rc<dyn PlatformDisplay> {
278 Rc::new(WaylandDisplay {})
279 }
280
281 // todo!(linux)
282 fn mouse_position(&self) -> Point<Pixels> {
283 Point::default()
284 }
285
286 //todo!(linux)
287 fn modifiers(&self) -> Modifiers {
288 crate::Modifiers::default()
289 }
290
291 //todo!(linux)
292 fn as_any_mut(&mut self) -> &mut dyn Any {
293 unimplemented!()
294 }
295
296 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
297 self.0.inner.lock().input_handler = Some(input_handler);
298 }
299
300 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
301 self.0.inner.lock().input_handler.take()
302 }
303
304 //todo!(linux)
305 fn prompt(
306 &self,
307 level: PromptLevel,
308 msg: &str,
309 detail: Option<&str>,
310 answers: &[&str],
311 ) -> Receiver<usize> {
312 unimplemented!()
313 }
314
315 fn activate(&self) {
316 //todo!(linux)
317 }
318
319 fn set_title(&mut self, title: &str) {
320 self.0.toplevel.set_title(title.to_string());
321 }
322
323 fn set_edited(&mut self, edited: bool) {
324 //todo!(linux)
325 }
326
327 fn show_character_palette(&self) {
328 //todo!(linux)
329 }
330
331 fn minimize(&self) {
332 //todo!(linux)
333 }
334
335 fn zoom(&self) {
336 //todo!(linux)
337 }
338
339 fn toggle_full_screen(&self) {
340 //todo!(linux)
341 }
342
343 fn on_request_frame(&self, callback: Box<dyn FnMut()>) {
344 self.0.callbacks.lock().request_frame = Some(callback);
345 }
346
347 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>) {
348 self.0.callbacks.lock().input = Some(callback);
349 }
350
351 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
352 //todo!(linux)
353 }
354
355 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
356 self.0.callbacks.lock().resize = Some(callback);
357 }
358
359 fn on_fullscreen(&self, callback: Box<dyn FnMut(bool)>) {
360 //todo!(linux)
361 }
362
363 fn on_moved(&self, callback: Box<dyn FnMut()>) {
364 self.0.callbacks.lock().moved = Some(callback);
365 }
366
367 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
368 self.0.callbacks.lock().should_close = Some(callback);
369 }
370
371 fn on_close(&self, callback: Box<dyn FnOnce()>) {
372 self.0.callbacks.lock().close = Some(callback);
373 }
374
375 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
376 //todo!(linux)
377 }
378
379 // todo!(linux)
380 fn is_topmost_for_position(&self, position: Point<Pixels>) -> bool {
381 false
382 }
383
384 fn draw(&self, scene: &Scene) {
385 let mut inner = self.0.inner.lock();
386 inner.renderer.draw(scene);
387 }
388
389 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
390 let inner = self.0.inner.lock();
391 inner.renderer.sprite_atlas().clone()
392 }
393
394 fn set_graphics_profiler_enabled(&self, enabled: bool) {
395 //todo!(linux)
396 }
397}
398
399#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
400pub enum WaylandDecorationState {
401 /// Decorations are to be provided by the client
402 Client,
403
404 /// Decorations are provided by the server
405 Server,
406}