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(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 fn dismiss_notification(&mut self, type_id: TypeId, id: usize, cx: &mut ViewContext<Self>) {
111 self.notifications
112 .retain(|(existing_type_id, existing_id, _)| {
113 if (*existing_type_id, *existing_id) == (type_id, id) {
114 cx.notify();
115 false
116 } else {
117 true
118 }
119 });
120 }
121}
122
123pub mod simple_message_notification {
124
125 use gpui::{
126 actions,
127 elements::{Flex, MouseEventHandler, Padding, ParentElement, Svg, Text},
128 impl_actions, Action, CursorStyle, Element, Entity, MouseButton, MutableAppContext, View,
129 ViewContext,
130 };
131 use menu::Cancel;
132 use serde::Deserialize;
133 use settings::Settings;
134
135 use crate::Workspace;
136
137 use super::Notification;
138
139 actions!(message_notifications, [CancelMessageNotification]);
140
141 #[derive(Clone, Default, Deserialize, PartialEq)]
142 pub struct OsOpen(pub String);
143
144 impl_actions!(message_notifications, [OsOpen]);
145
146 pub fn init(cx: &mut MutableAppContext) {
147 cx.add_action(MessageNotification::dismiss);
148 cx.add_action(
149 |_workspace: &mut Workspace, open_action: &OsOpen, cx: &mut ViewContext<Workspace>| {
150 cx.platform().open_url(open_action.0.as_str());
151 },
152 )
153 }
154
155 pub struct MessageNotification {
156 message: String,
157 click_action: Option<Box<dyn Action>>,
158 click_message: Option<String>,
159 }
160
161 pub enum MessageNotificationEvent {
162 Dismiss,
163 }
164
165 impl Entity for MessageNotification {
166 type Event = MessageNotificationEvent;
167 }
168
169 impl MessageNotification {
170 pub fn new_message<S: AsRef<str>>(message: S) -> MessageNotification {
171 Self {
172 message: message.as_ref().to_string(),
173 click_action: None,
174 click_message: None,
175 }
176 }
177
178 pub fn new<S1: AsRef<str>, A: Action, S2: AsRef<str>>(
179 message: S1,
180 click_action: A,
181 click_message: S2,
182 ) -> Self {
183 Self {
184 message: message.as_ref().to_string(),
185 click_action: Some(Box::new(click_action) as Box<dyn Action>),
186 click_message: Some(click_message.as_ref().to_string()),
187 }
188 }
189
190 pub fn dismiss(&mut self, _: &CancelMessageNotification, cx: &mut ViewContext<Self>) {
191 cx.emit(MessageNotificationEvent::Dismiss);
192 }
193 }
194
195 impl View for MessageNotification {
196 fn ui_name() -> &'static str {
197 "MessageNotification"
198 }
199
200 fn render(&mut self, cx: &mut gpui::RenderContext<'_, Self>) -> gpui::ElementBox {
201 let theme = cx.global::<Settings>().theme.clone();
202 let theme = &theme.simple_message_notification;
203
204 enum MessageNotificationTag {}
205
206 let click_action = self
207 .click_action
208 .as_ref()
209 .map(|action| action.boxed_clone());
210 let click_message = self.click_message.as_ref().map(|message| message.clone());
211 let message = self.message.clone();
212
213 MouseEventHandler::<MessageNotificationTag>::new(0, cx, |state, cx| {
214 Flex::column()
215 .with_child(
216 Flex::row()
217 .with_child(
218 Text::new(message, theme.message.text.clone())
219 .contained()
220 .with_style(theme.message.container)
221 .aligned()
222 .top()
223 .left()
224 .flex(1., true)
225 .boxed(),
226 )
227 .with_child(
228 MouseEventHandler::<Cancel>::new(0, cx, |state, _| {
229 let style = theme.dismiss_button.style_for(state, false);
230 Svg::new("icons/x_mark_8.svg")
231 .with_color(style.color)
232 .constrained()
233 .with_width(style.icon_width)
234 .aligned()
235 .contained()
236 .with_style(style.container)
237 .constrained()
238 .with_width(style.button_width)
239 .with_height(style.button_width)
240 .boxed()
241 })
242 .with_padding(Padding::uniform(5.))
243 .on_click(MouseButton::Left, move |_, cx| {
244 cx.dispatch_action(CancelMessageNotification)
245 })
246 .aligned()
247 .constrained()
248 .with_height(
249 cx.font_cache().line_height(theme.message.text.font_size),
250 )
251 .aligned()
252 .top()
253 .flex_float()
254 .boxed(),
255 )
256 .boxed(),
257 )
258 .with_children({
259 let style = theme.action_message.style_for(state, false);
260 if let Some(click_message) = click_message {
261 Some(
262 Text::new(click_message, style.text.clone())
263 .contained()
264 .with_style(style.container)
265 .boxed(),
266 )
267 } else {
268 None
269 }
270 .into_iter()
271 })
272 .contained()
273 .boxed()
274 })
275 .with_cursor_style(CursorStyle::PointingHand)
276 .on_click(MouseButton::Left, move |_, cx| {
277 if let Some(click_action) = click_action.as_ref() {
278 cx.dispatch_any_action(click_action.boxed_clone())
279 }
280 })
281 .boxed()
282 }
283 }
284
285 impl Notification for MessageNotification {
286 fn should_dismiss_notification_on_event(&self, event: &<Self as Entity>::Event) -> bool {
287 match event {
288 MessageNotificationEvent::Dismiss => true,
289 }
290 }
291 }
292}
293
294pub trait NotifyResultExt {
295 type Ok;
296
297 fn notify_err(
298 self,
299 workspace: &mut Workspace,
300 cx: &mut ViewContext<Workspace>,
301 ) -> Option<Self::Ok>;
302}
303
304impl<T, E> NotifyResultExt for Result<T, E>
305where
306 E: std::fmt::Debug,
307{
308 type Ok = T;
309
310 fn notify_err(self, workspace: &mut Workspace, cx: &mut ViewContext<Workspace>) -> Option<T> {
311 match self {
312 Ok(value) => Some(value),
313 Err(err) => {
314 workspace.show_notification(0, cx, |cx| {
315 cx.add_view(|_cx| {
316 simple_message_notification::MessageNotification::new_message(format!(
317 "Error: {:?}",
318 err,
319 ))
320 })
321 });
322
323 None
324 }
325 }
326 }
327}