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