1use editor::Editor;
2use gpui::{
3 AnyElement, App, Entity, EventEmitter, FocusHandle, Focusable, Subscription, actions,
4 prelude::*,
5};
6use project::ProjectItem as _;
7use ui::{ButtonLike, ElevationIndex, KeyBinding, prelude::*};
8use util::ResultExt as _;
9use workspace::WorkspaceId;
10use workspace::item::ItemEvent;
11use workspace::{Workspace, item::Item};
12
13use crate::jupyter_settings::JupyterSettings;
14use crate::repl_store::ReplStore;
15
16actions!(
17 repl,
18 [
19 /// Runs the current cell and advances to the next one.
20 Run,
21 /// Runs the current cell without advancing.
22 RunInPlace,
23 /// Clears all outputs in the REPL.
24 ClearOutputs,
25 /// Opens the REPL sessions panel.
26 Sessions,
27 /// Interrupts the currently running kernel.
28 Interrupt,
29 /// Shuts down the current kernel.
30 Shutdown,
31 /// Restarts the current kernel.
32 Restart,
33 /// Refreshes the list of available kernelspecs.
34 RefreshKernelspecs
35 ]
36);
37
38pub fn init(cx: &mut App) {
39 cx.observe_new(
40 |workspace: &mut Workspace, _window, _cx: &mut Context<Workspace>| {
41 workspace.register_action(|workspace, _: &Sessions, window, cx| {
42 let existing = workspace
43 .active_pane()
44 .read(cx)
45 .items()
46 .find_map(|item| item.downcast::<ReplSessionsPage>());
47
48 if let Some(existing) = existing {
49 workspace.activate_item(&existing, true, true, window, cx);
50 } else {
51 let repl_sessions_page = ReplSessionsPage::new(window, cx);
52 workspace.add_item_to_active_pane(
53 Box::new(repl_sessions_page),
54 None,
55 true,
56 window,
57 cx,
58 )
59 }
60 });
61
62 workspace.register_action(|_workspace, _: &RefreshKernelspecs, _, cx| {
63 let store = ReplStore::global(cx);
64 store.update(cx, |store, cx| {
65 store.refresh_kernelspecs(cx).detach();
66 });
67 });
68 },
69 )
70 .detach();
71
72 cx.observe_new(
73 move |editor: &mut Editor, window, cx: &mut Context<Editor>| {
74 let Some(window) = window else {
75 return;
76 };
77
78 if !editor.use_modal_editing() || !editor.buffer().read(cx).is_singleton() {
79 return;
80 }
81
82 cx.defer_in(window, |editor, window, cx| {
83 let workspace = Workspace::for_window(window, cx);
84 let project = workspace.map(|workspace| workspace.read(cx).project().clone());
85
86 let is_local_project = project
87 .as_ref()
88 .map(|project| project.read(cx).is_local())
89 .unwrap_or(false);
90
91 if !is_local_project {
92 return;
93 }
94
95 let buffer = editor.buffer().read(cx).as_singleton();
96
97 let language = buffer
98 .as_ref()
99 .and_then(|buffer| buffer.read(cx).language());
100
101 let project_path = buffer.and_then(|buffer| buffer.read(cx).project_path(cx));
102
103 let editor_handle = cx.entity().downgrade();
104
105 if let Some(language) = language
106 && language.name() == "Python".into()
107 && let (Some(project_path), Some(project)) = (project_path, project) {
108 let store = ReplStore::global(cx);
109 store.update(cx, |store, cx| {
110 store
111 .refresh_python_kernelspecs(
112 project_path.worktree_id,
113 &project,
114 cx,
115 )
116 .detach_and_log_err(cx);
117 });
118 }
119
120 editor
121 .register_action({
122 let editor_handle = editor_handle.clone();
123 move |_: &Run, window, cx| {
124 if !JupyterSettings::enabled(cx) {
125 return;
126 }
127
128 crate::run(editor_handle.clone(), true, window, cx).log_err();
129 }
130 })
131 .detach();
132
133 editor
134 .register_action({
135 let editor_handle = editor_handle.clone();
136 move |_: &RunInPlace, window, cx| {
137 if !JupyterSettings::enabled(cx) {
138 return;
139 }
140
141 crate::run(editor_handle.clone(), false, window, cx).log_err();
142 }
143 })
144 .detach();
145 });
146 },
147 )
148 .detach();
149}
150
151pub struct ReplSessionsPage {
152 focus_handle: FocusHandle,
153 _subscriptions: Vec<Subscription>,
154}
155
156impl ReplSessionsPage {
157 pub fn new(window: &mut Window, cx: &mut Context<Workspace>) -> Entity<Self> {
158 cx.new(|cx| {
159 let focus_handle = cx.focus_handle();
160
161 let subscriptions = vec![
162 cx.on_focus_in(&focus_handle, window, |_this, _window, cx| cx.notify()),
163 cx.on_focus_out(&focus_handle, window, |_this, _event, _window, cx| {
164 cx.notify()
165 }),
166 ];
167
168 Self {
169 focus_handle,
170 _subscriptions: subscriptions,
171 }
172 })
173 }
174}
175
176impl EventEmitter<ItemEvent> for ReplSessionsPage {}
177
178impl Focusable for ReplSessionsPage {
179 fn focus_handle(&self, _cx: &App) -> FocusHandle {
180 self.focus_handle.clone()
181 }
182}
183
184impl Item for ReplSessionsPage {
185 type Event = ItemEvent;
186
187 fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
188 "REPL Sessions".into()
189 }
190
191 fn telemetry_event_text(&self) -> Option<&'static str> {
192 Some("REPL Session Started")
193 }
194
195 fn show_toolbar(&self) -> bool {
196 false
197 }
198
199 fn clone_on_split(
200 &self,
201 _workspace_id: Option<WorkspaceId>,
202 _window: &mut Window,
203 _: &mut Context<Self>,
204 ) -> Option<Entity<Self>> {
205 None
206 }
207
208 fn to_item_events(event: &Self::Event, mut f: impl FnMut(workspace::item::ItemEvent)) {
209 f(*event)
210 }
211}
212
213impl Render for ReplSessionsPage {
214 fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
215 let store = ReplStore::global(cx);
216
217 let (kernel_specifications, sessions) = store.update(cx, |store, _cx| {
218 (
219 store
220 .pure_jupyter_kernel_specifications()
221 .cloned()
222 .collect::<Vec<_>>(),
223 store.sessions().cloned().collect::<Vec<_>>(),
224 )
225 });
226
227 // When there are no kernel specifications, show a link to the Zed docs explaining how to
228 // install kernels. It can be assumed they don't have a running kernel if we have no
229 // specifications.
230 if kernel_specifications.is_empty() {
231 let instructions = "To start interactively running code in your editor, you need to install and configure Jupyter kernels.";
232
233 return ReplSessionsContainer::new("No Jupyter Kernels Available")
234 .child(Label::new(instructions))
235 .child(
236 h_flex().w_full().p_4().justify_center().gap_2().child(
237 ButtonLike::new("install-kernels")
238 .style(ButtonStyle::Filled)
239 .size(ButtonSize::Large)
240 .layer(ElevationIndex::ModalSurface)
241 .child(Label::new("Install Kernels"))
242 .on_click(move |_, _, cx| {
243 cx.open_url(
244 "https://zed.dev/docs/repl#language-specific-instructions",
245 )
246 }),
247 ),
248 );
249 }
250
251 // When there are no sessions, show the command to run code in an editor
252 if sessions.is_empty() {
253 let instructions = "To run code in a Jupyter kernel, select some code and use the 'repl::Run' command.";
254
255 return ReplSessionsContainer::new("No Jupyter Kernel Sessions").child(
256 v_flex()
257 .child(Label::new(instructions))
258 .children(KeyBinding::for_action(&Run, window, cx)),
259 );
260 }
261
262 ReplSessionsContainer::new("Jupyter Kernel Sessions").children(sessions)
263 }
264}
265
266#[derive(IntoElement)]
267struct ReplSessionsContainer {
268 title: SharedString,
269 children: Vec<AnyElement>,
270}
271
272impl ReplSessionsContainer {
273 pub fn new(title: impl Into<SharedString>) -> Self {
274 Self {
275 title: title.into(),
276 children: Vec::new(),
277 }
278 }
279}
280
281impl ParentElement for ReplSessionsContainer {
282 fn extend(&mut self, elements: impl IntoIterator<Item = AnyElement>) {
283 self.children.extend(elements)
284 }
285}
286
287impl RenderOnce for ReplSessionsContainer {
288 fn render(self, _window: &mut Window, _cx: &mut App) -> impl IntoElement {
289 v_flex()
290 .p_4()
291 .gap_2()
292 .size_full()
293 .child(Label::new(self.title).size(LabelSize::Large))
294 .children(self.children)
295 }
296}