1use std::{any::TypeId, ops::DerefMut};
2
3use collections::HashSet;
4use gpui::{AnyViewHandle, Entity, MutableAppContext, View, ViewContext, ViewHandle};
5
6use crate::Workspace;
7
8pub fn init(cx: &mut MutableAppContext) {
9 cx.set_global(NotificationTracker::new());
10 simple_message_notification::init(cx);
11}
12
13pub trait Notification: View {
14 fn should_dismiss_notification_on_event(&self, event: &<Self as Entity>::Event) -> bool;
15}
16
17pub trait NotificationHandle {
18 fn id(&self) -> usize;
19 fn to_any(&self) -> AnyViewHandle;
20}
21
22impl<T: Notification> NotificationHandle for ViewHandle<T> {
23 fn id(&self) -> usize {
24 self.id()
25 }
26
27 fn to_any(&self) -> AnyViewHandle {
28 self.into()
29 }
30}
31
32impl From<&dyn NotificationHandle> for AnyViewHandle {
33 fn from(val: &dyn NotificationHandle) -> Self {
34 val.to_any()
35 }
36}
37
38struct NotificationTracker {
39 notifications_sent: HashSet<TypeId>,
40}
41
42impl std::ops::Deref for NotificationTracker {
43 type Target = HashSet<TypeId>;
44
45 fn deref(&self) -> &Self::Target {
46 &self.notifications_sent
47 }
48}
49
50impl DerefMut for NotificationTracker {
51 fn deref_mut(&mut self) -> &mut Self::Target {
52 &mut self.notifications_sent
53 }
54}
55
56impl NotificationTracker {
57 fn new() -> Self {
58 Self {
59 notifications_sent: HashSet::default(),
60 }
61 }
62}
63
64impl Workspace {
65 pub fn show_notification_once<V: Notification>(
66 &mut self,
67 id: usize,
68 cx: &mut ViewContext<Self>,
69 build_notification: impl FnOnce(&mut ViewContext<Self>) -> ViewHandle<V>,
70 ) {
71 if !cx
72 .global::<NotificationTracker>()
73 .contains(&TypeId::of::<V>())
74 {
75 cx.update_global::<NotificationTracker, _, _>(|tracker, _| {
76 tracker.insert(TypeId::of::<V>())
77 });
78
79 self.show_notification::<V>(id, cx, build_notification)
80 }
81 }
82
83 pub fn show_notification<V: Notification>(
84 &mut self,
85 id: usize,
86 cx: &mut ViewContext<Self>,
87 build_notification: impl FnOnce(&mut ViewContext<Self>) -> ViewHandle<V>,
88 ) {
89 let type_id = TypeId::of::<V>();
90 if self
91 .notifications
92 .iter()
93 .all(|(existing_type_id, existing_id, _)| {
94 (*existing_type_id, *existing_id) != (type_id, id)
95 })
96 {
97 let notification = build_notification(cx);
98 cx.subscribe(¬ification, move |this, handle, event, cx| {
99 if handle.read(cx).should_dismiss_notification_on_event(event) {
100 this.dismiss_notification_internal(type_id, id, cx);
101 }
102 })
103 .detach();
104 self.notifications
105 .push((type_id, id, Box::new(notification)));
106 cx.notify();
107 }
108 }
109
110 pub fn dismiss_notification<V: Notification>(&mut self, id: usize, cx: &mut ViewContext<Self>) {
111 let type_id = TypeId::of::<V>();
112
113 self.dismiss_notification_internal(type_id, id, cx)
114 }
115
116 fn dismiss_notification_internal(
117 &mut self,
118 type_id: TypeId,
119 id: usize,
120 cx: &mut ViewContext<Self>,
121 ) {
122 self.notifications
123 .retain(|(existing_type_id, existing_id, _)| {
124 if (*existing_type_id, *existing_id) == (type_id, id) {
125 cx.notify();
126 false
127 } else {
128 true
129 }
130 });
131 }
132}
133
134pub mod simple_message_notification {
135
136 use std::borrow::Cow;
137
138 use gpui::{
139 actions,
140 elements::{Flex, MouseEventHandler, Padding, ParentElement, Svg, Text},
141 impl_actions, Action, CursorStyle, Element, Entity, MouseButton, MutableAppContext, View,
142 ViewContext,
143 };
144 use menu::Cancel;
145 use serde::Deserialize;
146 use settings::Settings;
147
148 use crate::Workspace;
149
150 use super::Notification;
151
152 actions!(message_notifications, [CancelMessageNotification]);
153
154 #[derive(Clone, Default, Deserialize, PartialEq)]
155 pub struct OsOpen(pub Cow<'static, str>);
156
157 impl OsOpen {
158 pub fn new<I: Into<Cow<'static, str>>>(url: I) -> Self {
159 OsOpen(url.into())
160 }
161 }
162
163 impl_actions!(message_notifications, [OsOpen]);
164
165 pub fn init(cx: &mut MutableAppContext) {
166 cx.add_action(MessageNotification::dismiss);
167 cx.add_action(
168 |_workspace: &mut Workspace, open_action: &OsOpen, cx: &mut ViewContext<Workspace>| {
169 cx.platform().open_url(open_action.0.as_ref());
170 },
171 )
172 }
173
174 pub struct MessageNotification {
175 message: Cow<'static, str>,
176 click_action: Option<Box<dyn Action>>,
177 click_message: Option<Cow<'static, str>>,
178 }
179
180 pub enum MessageNotificationEvent {
181 Dismiss,
182 }
183
184 impl Entity for MessageNotification {
185 type Event = MessageNotificationEvent;
186 }
187
188 impl MessageNotification {
189 pub fn new_message<S: Into<Cow<'static, str>>>(message: S) -> MessageNotification {
190 Self {
191 message: message.into(),
192 click_action: None,
193 click_message: None,
194 }
195 }
196
197 pub fn new_boxed_action<S1: Into<Cow<'static, str>>, S2: Into<Cow<'static, str>>>(
198 message: S1,
199 click_action: Box<dyn Action>,
200 click_message: S2,
201 ) -> Self {
202 Self {
203 message: message.into(),
204 click_action: Some(click_action),
205 click_message: Some(click_message.into()),
206 }
207 }
208
209 pub fn new<S1: Into<Cow<'static, str>>, A: Action, S2: Into<Cow<'static, str>>>(
210 message: S1,
211 click_action: A,
212 click_message: S2,
213 ) -> Self {
214 Self {
215 message: message.into(),
216 click_action: Some(Box::new(click_action) as Box<dyn Action>),
217 click_message: Some(click_message.into()),
218 }
219 }
220
221 pub fn dismiss(&mut self, _: &CancelMessageNotification, cx: &mut ViewContext<Self>) {
222 cx.emit(MessageNotificationEvent::Dismiss);
223 }
224 }
225
226 impl View for MessageNotification {
227 fn ui_name() -> &'static str {
228 "MessageNotification"
229 }
230
231 fn render(&mut self, cx: &mut gpui::RenderContext<'_, Self>) -> gpui::ElementBox {
232 let theme = cx.global::<Settings>().theme.clone();
233 let theme = &theme.simple_message_notification;
234
235 enum MessageNotificationTag {}
236
237 let click_action = self
238 .click_action
239 .as_ref()
240 .map(|action| action.boxed_clone());
241 let click_message = self.click_message.as_ref().map(|message| message.clone());
242 let message = self.message.clone();
243
244 let has_click_action = click_action.is_some();
245
246 MouseEventHandler::<MessageNotificationTag>::new(0, cx, |state, cx| {
247 Flex::column()
248 .with_child(
249 Flex::row()
250 .with_child(
251 Text::new(message, theme.message.text.clone())
252 .contained()
253 .with_style(theme.message.container)
254 .aligned()
255 .top()
256 .left()
257 .flex(1., true)
258 .boxed(),
259 )
260 .with_child(
261 MouseEventHandler::<Cancel>::new(0, cx, |state, _| {
262 let style = theme.dismiss_button.style_for(state, false);
263 Svg::new("icons/x_mark_8.svg")
264 .with_color(style.color)
265 .constrained()
266 .with_width(style.icon_width)
267 .aligned()
268 .contained()
269 .with_style(style.container)
270 .constrained()
271 .with_width(style.button_width)
272 .with_height(style.button_width)
273 .boxed()
274 })
275 .with_padding(Padding::uniform(5.))
276 .on_click(MouseButton::Left, move |_, cx| {
277 cx.dispatch_action(CancelMessageNotification)
278 })
279 .with_cursor_style(CursorStyle::PointingHand)
280 .aligned()
281 .constrained()
282 .with_height(
283 cx.font_cache().line_height(theme.message.text.font_size),
284 )
285 .aligned()
286 .top()
287 .flex_float()
288 .boxed(),
289 )
290 .boxed(),
291 )
292 .with_children({
293 let style = theme.action_message.style_for(state, false);
294 if let Some(click_message) = click_message {
295 Some(
296 Flex::row()
297 .with_child(
298 Text::new(click_message, style.text.clone())
299 .contained()
300 .with_style(style.container)
301 .boxed(),
302 )
303 .boxed(),
304 )
305 } else {
306 None
307 }
308 .into_iter()
309 })
310 .contained()
311 .boxed()
312 })
313 // Since we're not using a proper overlay, we have to capture these extra events
314 .on_down(MouseButton::Left, |_, _| {})
315 .on_up(MouseButton::Left, |_, _| {})
316 .on_click(MouseButton::Left, move |_, cx| {
317 if let Some(click_action) = click_action.as_ref() {
318 cx.dispatch_any_action(click_action.boxed_clone());
319 cx.dispatch_action(CancelMessageNotification)
320 }
321 })
322 .with_cursor_style(if has_click_action {
323 CursorStyle::PointingHand
324 } else {
325 CursorStyle::Arrow
326 })
327 .boxed()
328 }
329 }
330
331 impl Notification for MessageNotification {
332 fn should_dismiss_notification_on_event(&self, event: &<Self as Entity>::Event) -> bool {
333 match event {
334 MessageNotificationEvent::Dismiss => true,
335 }
336 }
337 }
338}
339
340pub trait NotifyResultExt {
341 type Ok;
342
343 fn notify_err(
344 self,
345 workspace: &mut Workspace,
346 cx: &mut ViewContext<Workspace>,
347 ) -> Option<Self::Ok>;
348}
349
350impl<T, E> NotifyResultExt for Result<T, E>
351where
352 E: std::fmt::Debug,
353{
354 type Ok = T;
355
356 fn notify_err(self, workspace: &mut Workspace, cx: &mut ViewContext<Workspace>) -> Option<T> {
357 match self {
358 Ok(value) => Some(value),
359 Err(err) => {
360 workspace.show_notification(0, cx, |cx| {
361 cx.add_view(|_cx| {
362 simple_message_notification::MessageNotification::new_message(format!(
363 "Error: {:?}",
364 err,
365 ))
366 })
367 });
368
369 None
370 }
371 }
372 }
373}