lsp_log.rs

  1use collections::{HashMap, VecDeque};
  2use editor::{Editor, EditorElement, EditorEvent, MoveToEnd};
  3use futures::{channel::mpsc, StreamExt};
  4use gpui::{
  5    actions, div, AnchorCorner, AnyElement, AppContext, Context, Div, EventEmitter, FocusHandle,
  6    FocusableView, IntoElement, Model, ModelContext, ParentElement, Render, Styled, Subscription,
  7    View, ViewContext, VisualContext, WeakModel, WindowContext,
  8};
  9use language::{LanguageServerId, LanguageServerName};
 10use lsp::IoKind;
 11use project::{search::SearchQuery, Project};
 12use std::{borrow::Cow, sync::Arc};
 13use ui::{h_stack, popover_menu, Button, Checkbox, Clickable, ContextMenu, Label, Selection};
 14use workspace::{
 15    item::{Item, ItemHandle},
 16    searchable::{SearchEvent, SearchableItem, SearchableItemHandle},
 17    ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView, Workspace,
 18};
 19
 20const SEND_LINE: &str = "// Send:";
 21const RECEIVE_LINE: &str = "// Receive:";
 22const MAX_STORED_LOG_ENTRIES: usize = 2000;
 23
 24pub struct LogStore {
 25    projects: HashMap<WeakModel<Project>, ProjectState>,
 26    io_tx: mpsc::UnboundedSender<(WeakModel<Project>, LanguageServerId, IoKind, String)>,
 27}
 28
 29struct ProjectState {
 30    servers: HashMap<LanguageServerId, LanguageServerState>,
 31    _subscriptions: [gpui::Subscription; 2],
 32}
 33
 34struct LanguageServerState {
 35    log_messages: VecDeque<String>,
 36    rpc_state: Option<LanguageServerRpcState>,
 37    _io_logs_subscription: Option<lsp::Subscription>,
 38    _lsp_logs_subscription: Option<lsp::Subscription>,
 39}
 40
 41struct LanguageServerRpcState {
 42    rpc_messages: VecDeque<String>,
 43    last_message_kind: Option<MessageKind>,
 44}
 45
 46pub struct LspLogView {
 47    pub(crate) editor: View<Editor>,
 48    editor_subscription: Subscription,
 49    log_store: Model<LogStore>,
 50    current_server_id: Option<LanguageServerId>,
 51    is_showing_rpc_trace: bool,
 52    project: Model<Project>,
 53    focus_handle: FocusHandle,
 54    _log_store_subscriptions: Vec<Subscription>,
 55}
 56
 57pub struct LspLogToolbarItemView {
 58    log_view: Option<View<LspLogView>>,
 59    _log_view_subscription: Option<Subscription>,
 60}
 61
 62#[derive(Copy, Clone, PartialEq, Eq)]
 63enum MessageKind {
 64    Send,
 65    Receive,
 66}
 67
 68#[derive(Clone, Debug, PartialEq)]
 69pub(crate) struct LogMenuItem {
 70    pub server_id: LanguageServerId,
 71    pub server_name: LanguageServerName,
 72    pub worktree_root_name: String,
 73    pub rpc_trace_enabled: bool,
 74    pub rpc_trace_selected: bool,
 75    pub logs_selected: bool,
 76}
 77
 78actions!(debug, [OpenLanguageServerLogs]);
 79
 80pub fn init(cx: &mut AppContext) {
 81    let log_store = cx.build_model(|cx| LogStore::new(cx));
 82
 83    cx.observe_new_views(move |workspace: &mut Workspace, cx| {
 84        let project = workspace.project();
 85        if project.read(cx).is_local() {
 86            log_store.update(cx, |store, cx| {
 87                store.add_project(&project, cx);
 88            });
 89        }
 90
 91        let log_store = log_store.clone();
 92        workspace.register_action(move |workspace, _: &OpenLanguageServerLogs, cx| {
 93            let project = workspace.project().read(cx);
 94            if project.is_local() {
 95                workspace.add_item(
 96                    Box::new(cx.build_view(|cx| {
 97                        LspLogView::new(workspace.project().clone(), log_store.clone(), cx)
 98                    })),
 99                    cx,
100                );
101            }
102        });
103    })
104    .detach();
105}
106
107impl LogStore {
108    pub fn new(cx: &mut ModelContext<Self>) -> Self {
109        let (io_tx, mut io_rx) = mpsc::unbounded();
110        let this = Self {
111            projects: HashMap::default(),
112            io_tx,
113        };
114        cx.spawn(|this, mut cx| async move {
115            while let Some((project, server_id, io_kind, message)) = io_rx.next().await {
116                if let Some(this) = this.upgrade() {
117                    this.update(&mut cx, |this, cx| {
118                        this.on_io(project, server_id, io_kind, &message, cx);
119                    })?;
120                }
121            }
122            anyhow::Ok(())
123        })
124        .detach_and_log_err(cx);
125        this
126    }
127
128    pub fn add_project(&mut self, project: &Model<Project>, cx: &mut ModelContext<Self>) {
129        let weak_project = project.downgrade();
130        self.projects.insert(
131            project.downgrade(),
132            ProjectState {
133                servers: HashMap::default(),
134                _subscriptions: [
135                    cx.observe_release(project, move |this, _, _| {
136                        this.projects.remove(&weak_project);
137                    }),
138                    cx.subscribe(project, |this, project, event, cx| match event {
139                        project::Event::LanguageServerAdded(id) => {
140                            this.add_language_server(&project, *id, cx);
141                        }
142                        project::Event::LanguageServerRemoved(id) => {
143                            this.remove_language_server(&project, *id, cx);
144                        }
145                        project::Event::LanguageServerLog(id, message) => {
146                            this.add_language_server_log(&project, *id, message, cx);
147                        }
148                        _ => {}
149                    }),
150                ],
151            },
152        );
153    }
154
155    fn add_language_server(
156        &mut self,
157        project: &Model<Project>,
158        id: LanguageServerId,
159        cx: &mut ModelContext<Self>,
160    ) -> Option<&mut LanguageServerState> {
161        let project_state = self.projects.get_mut(&project.downgrade())?;
162        let server_state = project_state.servers.entry(id).or_insert_with(|| {
163            cx.notify();
164            LanguageServerState {
165                rpc_state: None,
166                log_messages: VecDeque::with_capacity(MAX_STORED_LOG_ENTRIES),
167                _io_logs_subscription: None,
168                _lsp_logs_subscription: None,
169            }
170        });
171
172        let server = project.read(cx).language_server_for_id(id);
173        if let Some(server) = server.as_deref() {
174            if server.has_notification_handler::<lsp::notification::LogMessage>() {
175                // Another event wants to re-add the server that was already added and subscribed to, avoid doing it again.
176                return Some(server_state);
177            }
178        }
179
180        let weak_project = project.downgrade();
181        let io_tx = self.io_tx.clone();
182        server_state._io_logs_subscription = server.as_ref().map(|server| {
183            server.on_io(move |io_kind, message| {
184                io_tx
185                    .unbounded_send((weak_project.clone(), id, io_kind, message.to_string()))
186                    .ok();
187            })
188        });
189        let this = cx.handle().downgrade();
190        let weak_project = project.downgrade();
191        server_state._lsp_logs_subscription = server.map(|server| {
192            let server_id = server.server_id();
193            server.on_notification::<lsp::notification::LogMessage, _>({
194                move |params, mut cx| {
195                    if let Some((project, this)) = weak_project.upgrade().zip(this.upgrade()) {
196                        this.update(&mut cx, |this, cx| {
197                            this.add_language_server_log(&project, server_id, &params.message, cx);
198                        })
199                        .ok();
200                    }
201                }
202            })
203        });
204        Some(server_state)
205    }
206
207    fn add_language_server_log(
208        &mut self,
209        project: &Model<Project>,
210        id: LanguageServerId,
211        message: &str,
212        cx: &mut ModelContext<Self>,
213    ) -> Option<()> {
214        let language_server_state = match self
215            .projects
216            .get_mut(&project.downgrade())?
217            .servers
218            .get_mut(&id)
219        {
220            Some(existing_state) => existing_state,
221            None => self.add_language_server(&project, id, cx)?,
222        };
223
224        let log_lines = &mut language_server_state.log_messages;
225        while log_lines.len() >= MAX_STORED_LOG_ENTRIES {
226            log_lines.pop_front();
227        }
228        let message = message.trim();
229        log_lines.push_back(message.to_string());
230        cx.emit(Event::NewServerLogEntry {
231            id,
232            entry: message.to_string(),
233            is_rpc: false,
234        });
235        cx.notify();
236        Some(())
237    }
238
239    fn remove_language_server(
240        &mut self,
241        project: &Model<Project>,
242        id: LanguageServerId,
243        cx: &mut ModelContext<Self>,
244    ) -> Option<()> {
245        let project_state = self.projects.get_mut(&project.downgrade())?;
246        project_state.servers.remove(&id);
247        cx.notify();
248        Some(())
249    }
250
251    fn server_logs(
252        &self,
253        project: &Model<Project>,
254        server_id: LanguageServerId,
255    ) -> Option<&VecDeque<String>> {
256        let weak_project = project.downgrade();
257        let project_state = self.projects.get(&weak_project)?;
258        let server_state = project_state.servers.get(&server_id)?;
259        Some(&server_state.log_messages)
260    }
261
262    fn enable_rpc_trace_for_language_server(
263        &mut self,
264        project: &Model<Project>,
265        server_id: LanguageServerId,
266    ) -> Option<&mut LanguageServerRpcState> {
267        let weak_project = project.downgrade();
268        let project_state = self.projects.get_mut(&weak_project)?;
269        let server_state = project_state.servers.get_mut(&server_id)?;
270        let rpc_state = server_state
271            .rpc_state
272            .get_or_insert_with(|| LanguageServerRpcState {
273                rpc_messages: VecDeque::with_capacity(MAX_STORED_LOG_ENTRIES),
274                last_message_kind: None,
275            });
276        Some(rpc_state)
277    }
278
279    pub fn disable_rpc_trace_for_language_server(
280        &mut self,
281        project: &Model<Project>,
282        server_id: LanguageServerId,
283        _: &mut ModelContext<Self>,
284    ) -> Option<()> {
285        let project = project.downgrade();
286        let project_state = self.projects.get_mut(&project)?;
287        let server_state = project_state.servers.get_mut(&server_id)?;
288        server_state.rpc_state.take();
289        Some(())
290    }
291
292    fn on_io(
293        &mut self,
294        project: WeakModel<Project>,
295        language_server_id: LanguageServerId,
296        io_kind: IoKind,
297        message: &str,
298        cx: &mut ModelContext<Self>,
299    ) -> Option<()> {
300        let is_received = match io_kind {
301            IoKind::StdOut => true,
302            IoKind::StdIn => false,
303            IoKind::StdErr => {
304                let project = project.upgrade()?;
305                let message = format!("stderr: {}", message.trim());
306                self.add_language_server_log(&project, language_server_id, &message, cx);
307                return Some(());
308            }
309        };
310
311        let state = self
312            .projects
313            .get_mut(&project)?
314            .servers
315            .get_mut(&language_server_id)?
316            .rpc_state
317            .as_mut()?;
318        let kind = if is_received {
319            MessageKind::Receive
320        } else {
321            MessageKind::Send
322        };
323
324        let rpc_log_lines = &mut state.rpc_messages;
325        if state.last_message_kind != Some(kind) {
326            let line_before_message = match kind {
327                MessageKind::Send => SEND_LINE,
328                MessageKind::Receive => RECEIVE_LINE,
329            };
330            rpc_log_lines.push_back(line_before_message.to_string());
331            cx.emit(Event::NewServerLogEntry {
332                id: language_server_id,
333                entry: line_before_message.to_string(),
334                is_rpc: true,
335            });
336        }
337
338        while rpc_log_lines.len() >= MAX_STORED_LOG_ENTRIES {
339            rpc_log_lines.pop_front();
340        }
341        let message = message.trim();
342        rpc_log_lines.push_back(message.to_string());
343        cx.emit(Event::NewServerLogEntry {
344            id: language_server_id,
345            entry: message.to_string(),
346            is_rpc: true,
347        });
348        cx.notify();
349        Some(())
350    }
351}
352
353impl LspLogView {
354    pub fn new(
355        project: Model<Project>,
356        log_store: Model<LogStore>,
357        cx: &mut ViewContext<Self>,
358    ) -> Self {
359        let server_id = log_store
360            .read(cx)
361            .projects
362            .get(&project.downgrade())
363            .and_then(|project| project.servers.keys().copied().next());
364        let model_changes_subscription = cx.observe(&log_store, |this, store, cx| {
365            (|| -> Option<()> {
366                let project_state = store.read(cx).projects.get(&this.project.downgrade())?;
367                if let Some(current_lsp) = this.current_server_id {
368                    if !project_state.servers.contains_key(&current_lsp) {
369                        if let Some(server) = project_state.servers.iter().next() {
370                            if this.is_showing_rpc_trace {
371                                this.show_rpc_trace_for_server(*server.0, cx)
372                            } else {
373                                this.show_logs_for_server(*server.0, cx)
374                            }
375                        } else {
376                            this.current_server_id = None;
377                            this.editor.update(cx, |editor, cx| {
378                                editor.set_read_only(false);
379                                editor.clear(cx);
380                                editor.set_read_only(true);
381                            });
382                            cx.notify();
383                        }
384                    }
385                } else {
386                    if let Some(server) = project_state.servers.iter().next() {
387                        if this.is_showing_rpc_trace {
388                            this.show_rpc_trace_for_server(*server.0, cx)
389                        } else {
390                            this.show_logs_for_server(*server.0, cx)
391                        }
392                    }
393                }
394
395                Some(())
396            })();
397
398            cx.notify();
399        });
400        let events_subscriptions = cx.subscribe(&log_store, |log_view, _, e, cx| match e {
401            Event::NewServerLogEntry { id, entry, is_rpc } => {
402                if log_view.current_server_id == Some(*id) {
403                    if (*is_rpc && log_view.is_showing_rpc_trace)
404                        || (!*is_rpc && !log_view.is_showing_rpc_trace)
405                    {
406                        log_view.editor.update(cx, |editor, cx| {
407                            editor.set_read_only(false);
408                            editor.handle_input(entry.trim(), cx);
409                            editor.handle_input("\n", cx);
410                            editor.set_read_only(true);
411                        });
412                    }
413                }
414            }
415        });
416        let (editor, editor_subscription) = Self::editor_for_logs(String::new(), cx);
417
418        let focus_handle = cx.focus_handle();
419        let focus_subscription = cx.on_focus(&focus_handle, |log_view, cx| {
420            cx.focus_view(&log_view.editor);
421        });
422
423        let mut this = Self {
424            focus_handle,
425            editor,
426            editor_subscription,
427            project,
428            log_store,
429            current_server_id: None,
430            is_showing_rpc_trace: false,
431            _log_store_subscriptions: vec![
432                model_changes_subscription,
433                events_subscriptions,
434                focus_subscription,
435            ],
436        };
437        if let Some(server_id) = server_id {
438            this.show_logs_for_server(server_id, cx);
439        }
440        this
441    }
442
443    fn editor_for_logs(
444        log_contents: String,
445        cx: &mut ViewContext<Self>,
446    ) -> (View<Editor>, Subscription) {
447        let editor = cx.build_view(|cx| {
448            let mut editor = Editor::multi_line(cx);
449            editor.set_text(log_contents, cx);
450            editor.move_to_end(&MoveToEnd, cx);
451            editor.set_read_only(true);
452            editor
453        });
454        let editor_subscription = cx.subscribe(
455            &editor,
456            |_, _, event: &EditorEvent, cx: &mut ViewContext<'_, LspLogView>| {
457                cx.emit(event.clone())
458            },
459        );
460        (editor, editor_subscription)
461    }
462
463    pub(crate) fn menu_items<'a>(&'a self, cx: &'a AppContext) -> Option<Vec<LogMenuItem>> {
464        let log_store = self.log_store.read(cx);
465        let state = log_store.projects.get(&self.project.downgrade())?;
466        let mut rows = self
467            .project
468            .read(cx)
469            .language_servers()
470            .filter_map(|(server_id, language_server_name, worktree_id)| {
471                let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
472                let state = state.servers.get(&server_id)?;
473                Some(LogMenuItem {
474                    server_id,
475                    server_name: language_server_name,
476                    worktree_root_name: worktree.read(cx).root_name().to_string(),
477                    rpc_trace_enabled: state.rpc_state.is_some(),
478                    rpc_trace_selected: self.is_showing_rpc_trace
479                        && self.current_server_id == Some(server_id),
480                    logs_selected: !self.is_showing_rpc_trace
481                        && self.current_server_id == Some(server_id),
482                })
483            })
484            .chain(
485                self.project
486                    .read(cx)
487                    .supplementary_language_servers()
488                    .filter_map(|(&server_id, (name, _))| {
489                        let state = state.servers.get(&server_id)?;
490                        Some(LogMenuItem {
491                            server_id,
492                            server_name: name.clone(),
493                            worktree_root_name: "supplementary".to_string(),
494                            rpc_trace_enabled: state.rpc_state.is_some(),
495                            rpc_trace_selected: self.is_showing_rpc_trace
496                                && self.current_server_id == Some(server_id),
497                            logs_selected: !self.is_showing_rpc_trace
498                                && self.current_server_id == Some(server_id),
499                        })
500                    }),
501            )
502            .collect::<Vec<_>>();
503        rows.sort_by_key(|row| row.server_id);
504        rows.dedup_by_key(|row| row.server_id);
505        Some(rows)
506    }
507
508    fn show_logs_for_server(&mut self, server_id: LanguageServerId, cx: &mut ViewContext<Self>) {
509        let log_contents = self
510            .log_store
511            .read(cx)
512            .server_logs(&self.project, server_id)
513            .map(log_contents);
514        if let Some(log_contents) = log_contents {
515            self.current_server_id = Some(server_id);
516            self.is_showing_rpc_trace = false;
517            let (editor, editor_subscription) = Self::editor_for_logs(log_contents, cx);
518            self.editor = editor;
519            self.editor_subscription = editor_subscription;
520            cx.notify();
521        }
522        cx.focus(&self.focus_handle);
523    }
524
525    fn show_rpc_trace_for_server(
526        &mut self,
527        server_id: LanguageServerId,
528        cx: &mut ViewContext<Self>,
529    ) {
530        let rpc_log = self.log_store.update(cx, |log_store, _| {
531            log_store
532                .enable_rpc_trace_for_language_server(&self.project, server_id)
533                .map(|state| log_contents(&state.rpc_messages))
534        });
535        if let Some(rpc_log) = rpc_log {
536            self.current_server_id = Some(server_id);
537            self.is_showing_rpc_trace = true;
538            let (editor, editor_subscription) = Self::editor_for_logs(rpc_log, cx);
539            let language = self.project.read(cx).languages().language_for_name("JSON");
540            editor
541                .read(cx)
542                .buffer()
543                .read(cx)
544                .as_singleton()
545                .expect("log buffer should be a singleton")
546                .update(cx, |_, cx| {
547                    cx.spawn({
548                        let buffer = cx.handle();
549                        |_, mut cx| async move {
550                            let language = language.await.ok();
551                            buffer.update(&mut cx, |buffer, cx| {
552                                buffer.set_language(language, cx);
553                            })
554                        }
555                    })
556                    .detach_and_log_err(cx);
557                });
558
559            self.editor = editor;
560            self.editor_subscription = editor_subscription;
561            cx.notify();
562        }
563
564        cx.focus(&self.focus_handle);
565    }
566
567    fn toggle_rpc_trace_for_server(
568        &mut self,
569        server_id: LanguageServerId,
570        enabled: bool,
571        cx: &mut ViewContext<Self>,
572    ) {
573        self.log_store.update(cx, |log_store, cx| {
574            if enabled {
575                log_store.enable_rpc_trace_for_language_server(&self.project, server_id);
576            } else {
577                log_store.disable_rpc_trace_for_language_server(&self.project, server_id, cx);
578            }
579        });
580        if !enabled && Some(server_id) == self.current_server_id {
581            self.show_logs_for_server(server_id, cx);
582            cx.notify();
583        }
584    }
585}
586
587fn log_contents(lines: &VecDeque<String>) -> String {
588    let (a, b) = lines.as_slices();
589    let log_contents = a.join("\n");
590    if b.is_empty() {
591        log_contents
592    } else {
593        log_contents + "\n" + &b.join("\n")
594    }
595}
596
597impl Render for LspLogView {
598    type Element = EditorElement;
599
600    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
601        self.editor.update(cx, |editor, cx| editor.render(cx))
602    }
603}
604
605impl FocusableView for LspLogView {
606    fn focus_handle(&self, _: &AppContext) -> FocusHandle {
607        self.focus_handle.clone()
608    }
609}
610
611impl Item for LspLogView {
612    type Event = EditorEvent;
613
614    fn to_item_events(event: &Self::Event, f: impl FnMut(workspace::item::ItemEvent)) {
615        Editor::to_item_events(event, f)
616    }
617
618    fn tab_content(&self, _: Option<usize>, _: bool, _: &WindowContext<'_>) -> AnyElement {
619        Label::new("LSP Logs").into_any_element()
620    }
621
622    fn as_searchable(&self, handle: &View<Self>) -> Option<Box<dyn SearchableItemHandle>> {
623        Some(Box::new(handle.clone()))
624    }
625}
626
627impl SearchableItem for LspLogView {
628    type Match = <Editor as SearchableItem>::Match;
629
630    fn clear_matches(&mut self, cx: &mut ViewContext<Self>) {
631        self.editor.update(cx, |e, cx| e.clear_matches(cx))
632    }
633
634    fn update_matches(&mut self, matches: Vec<Self::Match>, cx: &mut ViewContext<Self>) {
635        self.editor
636            .update(cx, |e, cx| e.update_matches(matches, cx))
637    }
638
639    fn query_suggestion(&mut self, cx: &mut ViewContext<Self>) -> String {
640        self.editor.update(cx, |e, cx| e.query_suggestion(cx))
641    }
642
643    fn activate_match(
644        &mut self,
645        index: usize,
646        matches: Vec<Self::Match>,
647        cx: &mut ViewContext<Self>,
648    ) {
649        self.editor
650            .update(cx, |e, cx| e.activate_match(index, matches, cx))
651    }
652
653    fn select_matches(&mut self, matches: Vec<Self::Match>, cx: &mut ViewContext<Self>) {
654        self.editor
655            .update(cx, |e, cx| e.select_matches(matches, cx))
656    }
657
658    fn find_matches(
659        &mut self,
660        query: Arc<project::search::SearchQuery>,
661        cx: &mut ViewContext<Self>,
662    ) -> gpui::Task<Vec<Self::Match>> {
663        self.editor.update(cx, |e, cx| e.find_matches(query, cx))
664    }
665
666    fn replace(&mut self, _: &Self::Match, _: &SearchQuery, _: &mut ViewContext<Self>) {
667        // Since LSP Log is read-only, it doesn't make sense to support replace operation.
668    }
669    fn supported_options() -> workspace::searchable::SearchOptions {
670        workspace::searchable::SearchOptions {
671            case: true,
672            word: true,
673            regex: true,
674            // LSP log is read-only.
675            replacement: false,
676        }
677    }
678    fn active_match_index(
679        &mut self,
680        matches: Vec<Self::Match>,
681        cx: &mut ViewContext<Self>,
682    ) -> Option<usize> {
683        self.editor
684            .update(cx, |e, cx| e.active_match_index(matches, cx))
685    }
686}
687
688impl EventEmitter<ToolbarItemEvent> for LspLogToolbarItemView {}
689
690impl ToolbarItemView for LspLogToolbarItemView {
691    fn set_active_pane_item(
692        &mut self,
693        active_pane_item: Option<&dyn ItemHandle>,
694        cx: &mut ViewContext<Self>,
695    ) -> workspace::ToolbarItemLocation {
696        if let Some(item) = active_pane_item {
697            if let Some(log_view) = item.downcast::<LspLogView>() {
698                self.log_view = Some(log_view.clone());
699                self._log_view_subscription = Some(cx.observe(&log_view, |_, _, cx| {
700                    cx.notify();
701                }));
702                return ToolbarItemLocation::PrimaryLeft;
703            }
704        }
705        self.log_view = None;
706        self._log_view_subscription = None;
707        ToolbarItemLocation::Hidden
708    }
709}
710
711impl Render for LspLogToolbarItemView {
712    type Element = Div;
713
714    fn render(&mut self, cx: &mut ViewContext<Self>) -> Self::Element {
715        let Some(log_view) = self.log_view.clone() else {
716            return div();
717        };
718        let (menu_rows, current_server_id) = log_view.update(cx, |log_view, cx| {
719            let menu_rows = log_view.menu_items(cx).unwrap_or_default();
720            let current_server_id = log_view.current_server_id;
721            (menu_rows, current_server_id)
722        });
723
724        let current_server = current_server_id.and_then(|current_server_id| {
725            if let Ok(ix) = menu_rows.binary_search_by_key(&current_server_id, |e| e.server_id) {
726                Some(menu_rows[ix].clone())
727            } else {
728                None
729            }
730        });
731
732        let log_toolbar_view = cx.view().clone();
733        let lsp_menu = popover_menu("LspLogView")
734            .anchor(AnchorCorner::TopLeft)
735            .trigger(Button::new(
736                "language_server_menu_header",
737                current_server
738                    .and_then(|row| {
739                        Some(Cow::Owned(format!(
740                            "{} ({}) - {}",
741                            row.server_name.0,
742                            row.worktree_root_name,
743                            if row.rpc_trace_selected {
744                                RPC_MESSAGES
745                            } else {
746                                SERVER_LOGS
747                            },
748                        )))
749                    })
750                    .unwrap_or_else(|| "No server selected".into()),
751            ))
752            .menu(move |cx| {
753                let menu_rows = menu_rows.clone();
754                let log_view = log_view.clone();
755                let log_toolbar_view = log_toolbar_view.clone();
756                ContextMenu::build(cx, move |mut menu, cx| {
757                    for (ix, row) in menu_rows.into_iter().enumerate() {
758                        let server_selected = Some(row.server_id) == current_server_id;
759                        menu = menu
760                            .header(format!(
761                                "{} ({})",
762                                row.server_name.0, row.worktree_root_name
763                            ))
764                            .entry(
765                                SERVER_LOGS,
766                                cx.handler_for(&log_view, move |view, cx| {
767                                    view.show_logs_for_server(row.server_id, cx);
768                                }),
769                            );
770                        if server_selected && row.logs_selected {
771                            debug_assert_eq!(
772                                Some(ix * 3 + 1),
773                                menu.select_last(),
774                                "Could not scroll to a just added LSP menu item"
775                            );
776                        }
777
778                        menu = menu.custom_entry(
779                            {
780                                let log_toolbar_view = log_toolbar_view.clone();
781                                move |cx| {
782                                    h_stack()
783                                        .w_full()
784                                        .justify_between()
785                                        .child(Label::new(RPC_MESSAGES))
786                                        .child(
787                                            div().z_index(120).child(
788                                                Checkbox::new(
789                                                    ix,
790                                                    if row.rpc_trace_enabled {
791                                                        Selection::Selected
792                                                    } else {
793                                                        Selection::Unselected
794                                                    },
795                                                )
796                                                .on_click(cx.listener_for(
797                                                    &log_toolbar_view,
798                                                    move |view, selection, cx| {
799                                                        let enabled = matches!(
800                                                            selection,
801                                                            Selection::Selected
802                                                        );
803                                                        view.toggle_logging_for_server(
804                                                            row.server_id,
805                                                            enabled,
806                                                            cx,
807                                                        );
808                                                        cx.stop_propagation();
809                                                    },
810                                                )),
811                                            ),
812                                        )
813                                        .into_any_element()
814                                }
815                            },
816                            cx.handler_for(&log_view, move |view, cx| {
817                                view.show_rpc_trace_for_server(row.server_id, cx);
818                            }),
819                        );
820                        if server_selected && row.rpc_trace_selected {
821                            debug_assert_eq!(
822                                Some(ix * 3 + 2),
823                                menu.select_last(),
824                                "Could not scroll to a just added LSP menu item"
825                            );
826                        }
827                    }
828                    menu
829                })
830            });
831
832        h_stack().size_full().child(lsp_menu).child(
833            div()
834                .child(
835                    Button::new("clear_log_button", "Clear").on_click(cx.listener(
836                        |this, _, cx| {
837                            if let Some(log_view) = this.log_view.as_ref() {
838                                log_view.update(cx, |log_view, cx| {
839                                    log_view.editor.update(cx, |editor, cx| {
840                                        editor.set_read_only(false);
841                                        editor.clear(cx);
842                                        editor.set_read_only(true);
843                                    });
844                                })
845                            }
846                        },
847                    )),
848                )
849                .ml_2(),
850        )
851    }
852}
853
854const RPC_MESSAGES: &str = "RPC Messages";
855const SERVER_LOGS: &str = "Server Logs";
856
857impl LspLogToolbarItemView {
858    pub fn new() -> Self {
859        Self {
860            log_view: None,
861            _log_view_subscription: None,
862        }
863    }
864
865    fn toggle_logging_for_server(
866        &mut self,
867        id: LanguageServerId,
868        enabled: bool,
869        cx: &mut ViewContext<Self>,
870    ) {
871        if let Some(log_view) = &self.log_view {
872            log_view.update(cx, |log_view, cx| {
873                log_view.toggle_rpc_trace_for_server(id, enabled, cx);
874                if !enabled && Some(id) == log_view.current_server_id {
875                    log_view.show_logs_for_server(id, cx);
876                    cx.notify();
877                }
878                cx.focus(&log_view.focus_handle);
879            });
880        }
881        cx.notify();
882    }
883}
884
885pub enum Event {
886    NewServerLogEntry {
887        id: LanguageServerId,
888        entry: String,
889        is_rpc: bool,
890    },
891}
892
893impl EventEmitter<Event> for LogStore {}
894impl EventEmitter<Event> for LspLogView {}
895impl EventEmitter<EditorEvent> for LspLogView {}
896impl EventEmitter<SearchEvent> for LspLogView {}