1use super::{AppVersion, CursorStyle, WindowBounds};
2use crate::{
3 geometry::vector::{vec2f, Vector2F},
4 keymap, Action, ClipboardItem,
5};
6use anyhow::{anyhow, Result};
7use collections::VecDeque;
8use parking_lot::Mutex;
9use postage::oneshot;
10use std::{
11 any::Any,
12 cell::RefCell,
13 path::{Path, PathBuf},
14 rc::Rc,
15 sync::Arc,
16};
17use time::UtcOffset;
18
19pub struct Platform {
20 dispatcher: Arc<dyn super::Dispatcher>,
21 fonts: Arc<dyn super::FontSystem>,
22 current_clipboard_item: Mutex<Option<ClipboardItem>>,
23 cursor: Mutex<CursorStyle>,
24}
25
26#[derive(Default)]
27pub struct ForegroundPlatform {
28 last_prompt_for_new_path_args: RefCell<Option<(PathBuf, oneshot::Sender<Option<PathBuf>>)>>,
29}
30
31struct Dispatcher;
32
33pub struct Window {
34 size: Vector2F,
35 scale_factor: f32,
36 current_scene: Option<crate::Scene>,
37 event_handlers: Vec<Box<dyn FnMut(super::Event) -> bool>>,
38 resize_handlers: Vec<Box<dyn FnMut()>>,
39 close_handlers: Vec<Box<dyn FnOnce()>>,
40 pub(crate) should_close_handler: Option<Box<dyn FnMut() -> bool>>,
41 pub(crate) title: Option<String>,
42 pub(crate) edited: bool,
43 pub(crate) pending_prompts: RefCell<VecDeque<oneshot::Sender<usize>>>,
44}
45
46#[cfg(any(test, feature = "test-support"))]
47impl ForegroundPlatform {
48 pub(crate) fn simulate_new_path_selection(
49 &self,
50 result: impl FnOnce(PathBuf) -> Option<PathBuf>,
51 ) {
52 let (dir_path, mut done_tx) = self
53 .last_prompt_for_new_path_args
54 .take()
55 .expect("prompt_for_new_path was not called");
56 let _ = postage::sink::Sink::try_send(&mut done_tx, result(dir_path));
57 }
58
59 pub(crate) fn did_prompt_for_new_path(&self) -> bool {
60 self.last_prompt_for_new_path_args.borrow().is_some()
61 }
62}
63
64impl super::ForegroundPlatform for ForegroundPlatform {
65 fn on_become_active(&self, _: Box<dyn FnMut()>) {}
66
67 fn on_resign_active(&self, _: Box<dyn FnMut()>) {}
68
69 fn on_quit(&self, _: Box<dyn FnMut()>) {}
70
71 fn on_event(&self, _: Box<dyn FnMut(crate::Event) -> bool>) {}
72
73 fn on_open_urls(&self, _: Box<dyn FnMut(Vec<String>)>) {}
74
75 fn run(&self, _on_finish_launching: Box<dyn FnOnce() -> ()>) {
76 unimplemented!()
77 }
78
79 fn on_menu_command(&self, _: Box<dyn FnMut(&dyn Action)>) {}
80 fn on_validate_menu_command(&self, _: Box<dyn FnMut(&dyn Action) -> bool>) {}
81 fn on_will_open_menu(&self, _: Box<dyn FnMut()>) {}
82 fn set_menus(&self, _: Vec<crate::Menu>, _: &keymap::Matcher) {}
83
84 fn prompt_for_paths(
85 &self,
86 _: super::PathPromptOptions,
87 ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
88 let (_done_tx, done_rx) = oneshot::channel();
89 done_rx
90 }
91
92 fn prompt_for_new_path(&self, path: &Path) -> oneshot::Receiver<Option<PathBuf>> {
93 let (done_tx, done_rx) = oneshot::channel();
94 *self.last_prompt_for_new_path_args.borrow_mut() = Some((path.to_path_buf(), done_tx));
95 done_rx
96 }
97}
98
99impl Platform {
100 fn new() -> Self {
101 Self {
102 dispatcher: Arc::new(Dispatcher),
103 fonts: Arc::new(super::current::FontSystem::new()),
104 current_clipboard_item: Default::default(),
105 cursor: Mutex::new(CursorStyle::Arrow),
106 }
107 }
108}
109
110impl super::Platform for Platform {
111 fn dispatcher(&self) -> Arc<dyn super::Dispatcher> {
112 self.dispatcher.clone()
113 }
114
115 fn fonts(&self) -> std::sync::Arc<dyn super::FontSystem> {
116 self.fonts.clone()
117 }
118
119 fn activate(&self, _ignoring_other_apps: bool) {}
120
121 fn open_window(
122 &self,
123 _: usize,
124 options: super::WindowOptions,
125 _executor: Rc<super::executor::Foreground>,
126 ) -> Box<dyn super::Window> {
127 Box::new(Window::new(match options.bounds {
128 WindowBounds::Maximized => vec2f(1024., 768.),
129 WindowBounds::Fixed(rect) => rect.size(),
130 }))
131 }
132
133 fn key_window_id(&self) -> Option<usize> {
134 None
135 }
136
137 fn quit(&self) {}
138
139 fn write_to_clipboard(&self, item: ClipboardItem) {
140 *self.current_clipboard_item.lock() = Some(item);
141 }
142
143 fn read_from_clipboard(&self) -> Option<ClipboardItem> {
144 self.current_clipboard_item.lock().clone()
145 }
146
147 fn open_url(&self, _: &str) {}
148
149 fn write_credentials(&self, _: &str, _: &str, _: &[u8]) -> Result<()> {
150 Ok(())
151 }
152
153 fn read_credentials(&self, _: &str) -> Result<Option<(String, Vec<u8>)>> {
154 Ok(None)
155 }
156
157 fn delete_credentials(&self, _: &str) -> Result<()> {
158 Ok(())
159 }
160
161 fn set_cursor_style(&self, style: CursorStyle) {
162 *self.cursor.lock() = style;
163 }
164
165 fn local_timezone(&self) -> UtcOffset {
166 UtcOffset::UTC
167 }
168
169 fn path_for_auxiliary_executable(&self, _name: &str) -> Result<PathBuf> {
170 Err(anyhow!("app not running inside a bundle"))
171 }
172
173 fn app_path(&self) -> Result<PathBuf> {
174 Err(anyhow!("app not running inside a bundle"))
175 }
176
177 fn app_version(&self) -> Result<AppVersion> {
178 Ok(AppVersion {
179 major: 1,
180 minor: 0,
181 patch: 0,
182 })
183 }
184}
185
186impl Window {
187 fn new(size: Vector2F) -> Self {
188 Self {
189 size,
190 event_handlers: Default::default(),
191 resize_handlers: Default::default(),
192 close_handlers: Default::default(),
193 should_close_handler: Default::default(),
194 scale_factor: 1.0,
195 current_scene: None,
196 title: None,
197 edited: false,
198 pending_prompts: Default::default(),
199 }
200 }
201
202 pub fn title(&self) -> Option<String> {
203 self.title.clone()
204 }
205}
206
207impl super::Dispatcher for Dispatcher {
208 fn is_main_thread(&self) -> bool {
209 true
210 }
211
212 fn run_on_main_thread(&self, task: async_task::Runnable) {
213 task.run();
214 }
215}
216
217impl super::WindowContext for Window {
218 fn size(&self) -> Vector2F {
219 self.size
220 }
221
222 fn scale_factor(&self) -> f32 {
223 self.scale_factor
224 }
225
226 fn titlebar_height(&self) -> f32 {
227 24.
228 }
229
230 fn present_scene(&mut self, scene: crate::Scene) {
231 self.current_scene = Some(scene);
232 }
233}
234
235impl super::Window for Window {
236 fn as_any_mut(&mut self) -> &mut dyn Any {
237 self
238 }
239
240 fn on_event(&mut self, callback: Box<dyn FnMut(crate::Event) -> bool>) {
241 self.event_handlers.push(callback);
242 }
243
244 fn on_active_status_change(&mut self, _: Box<dyn FnMut(bool)>) {}
245
246 fn on_resize(&mut self, callback: Box<dyn FnMut()>) {
247 self.resize_handlers.push(callback);
248 }
249
250 fn on_close(&mut self, callback: Box<dyn FnOnce()>) {
251 self.close_handlers.push(callback);
252 }
253
254 fn prompt(&self, _: crate::PromptLevel, _: &str, _: &[&str]) -> oneshot::Receiver<usize> {
255 let (done_tx, done_rx) = oneshot::channel();
256 self.pending_prompts.borrow_mut().push_back(done_tx);
257 done_rx
258 }
259
260 fn activate(&self) {}
261
262 fn set_title(&mut self, title: &str) {
263 self.title = Some(title.to_string())
264 }
265
266 fn set_edited(&mut self, edited: bool) {
267 self.edited = edited;
268 }
269
270 fn on_should_close(&mut self, callback: Box<dyn FnMut() -> bool>) {
271 self.should_close_handler = Some(callback);
272 }
273}
274
275pub fn platform() -> Platform {
276 Platform::new()
277}
278
279pub fn foreground_platform() -> ForegroundPlatform {
280 ForegroundPlatform::default()
281}