lsp_log.rs

  1use collections::{HashMap, VecDeque};
  2use editor::{Editor, EditorEvent, MoveToEnd};
  3use futures::{channel::mpsc, StreamExt};
  4use gpui::{
  5    actions, div, AnchorCorner, AnyElement, AppContext, Context, 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::{popover_menu, prelude::*, Button, Checkbox, 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.new_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.new_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.new_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.set_show_copilot_suggestions(false);
453            editor
454        });
455        let editor_subscription = cx.subscribe(
456            &editor,
457            |_, _, event: &EditorEvent, cx: &mut ViewContext<'_, LspLogView>| {
458                cx.emit(event.clone())
459            },
460        );
461        (editor, editor_subscription)
462    }
463
464    pub(crate) fn menu_items<'a>(&'a self, cx: &'a AppContext) -> Option<Vec<LogMenuItem>> {
465        let log_store = self.log_store.read(cx);
466        let state = log_store.projects.get(&self.project.downgrade())?;
467        let mut rows = self
468            .project
469            .read(cx)
470            .language_servers()
471            .filter_map(|(server_id, language_server_name, worktree_id)| {
472                let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
473                let state = state.servers.get(&server_id)?;
474                Some(LogMenuItem {
475                    server_id,
476                    server_name: language_server_name,
477                    worktree_root_name: worktree.read(cx).root_name().to_string(),
478                    rpc_trace_enabled: state.rpc_state.is_some(),
479                    rpc_trace_selected: self.is_showing_rpc_trace
480                        && self.current_server_id == Some(server_id),
481                    logs_selected: !self.is_showing_rpc_trace
482                        && self.current_server_id == Some(server_id),
483                })
484            })
485            .chain(
486                self.project
487                    .read(cx)
488                    .supplementary_language_servers()
489                    .filter_map(|(&server_id, (name, _))| {
490                        let state = state.servers.get(&server_id)?;
491                        Some(LogMenuItem {
492                            server_id,
493                            server_name: name.clone(),
494                            worktree_root_name: "supplementary".to_string(),
495                            rpc_trace_enabled: state.rpc_state.is_some(),
496                            rpc_trace_selected: self.is_showing_rpc_trace
497                                && self.current_server_id == Some(server_id),
498                            logs_selected: !self.is_showing_rpc_trace
499                                && self.current_server_id == Some(server_id),
500                        })
501                    }),
502            )
503            .collect::<Vec<_>>();
504        rows.sort_by_key(|row| row.server_id);
505        rows.dedup_by_key(|row| row.server_id);
506        Some(rows)
507    }
508
509    fn show_logs_for_server(&mut self, server_id: LanguageServerId, cx: &mut ViewContext<Self>) {
510        let log_contents = self
511            .log_store
512            .read(cx)
513            .server_logs(&self.project, server_id)
514            .map(log_contents);
515        if let Some(log_contents) = log_contents {
516            self.current_server_id = Some(server_id);
517            self.is_showing_rpc_trace = false;
518            let (editor, editor_subscription) = Self::editor_for_logs(log_contents, cx);
519            self.editor = editor;
520            self.editor_subscription = editor_subscription;
521            cx.notify();
522        }
523        cx.focus(&self.focus_handle);
524    }
525
526    fn show_rpc_trace_for_server(
527        &mut self,
528        server_id: LanguageServerId,
529        cx: &mut ViewContext<Self>,
530    ) {
531        let rpc_log = self.log_store.update(cx, |log_store, _| {
532            log_store
533                .enable_rpc_trace_for_language_server(&self.project, server_id)
534                .map(|state| log_contents(&state.rpc_messages))
535        });
536        if let Some(rpc_log) = rpc_log {
537            self.current_server_id = Some(server_id);
538            self.is_showing_rpc_trace = true;
539            let (editor, editor_subscription) = Self::editor_for_logs(rpc_log, cx);
540            let language = self.project.read(cx).languages().language_for_name("JSON");
541            editor
542                .read(cx)
543                .buffer()
544                .read(cx)
545                .as_singleton()
546                .expect("log buffer should be a singleton")
547                .update(cx, |_, cx| {
548                    cx.spawn({
549                        let buffer = cx.handle();
550                        |_, mut cx| async move {
551                            let language = language.await.ok();
552                            buffer.update(&mut cx, |buffer, cx| {
553                                buffer.set_language(language, cx);
554                            })
555                        }
556                    })
557                    .detach_and_log_err(cx);
558                });
559
560            self.editor = editor;
561            self.editor_subscription = editor_subscription;
562            cx.notify();
563        }
564
565        cx.focus(&self.focus_handle);
566    }
567
568    fn toggle_rpc_trace_for_server(
569        &mut self,
570        server_id: LanguageServerId,
571        enabled: bool,
572        cx: &mut ViewContext<Self>,
573    ) {
574        self.log_store.update(cx, |log_store, cx| {
575            if enabled {
576                log_store.enable_rpc_trace_for_language_server(&self.project, server_id);
577            } else {
578                log_store.disable_rpc_trace_for_language_server(&self.project, server_id, cx);
579            }
580        });
581        if !enabled && Some(server_id) == self.current_server_id {
582            self.show_logs_for_server(server_id, cx);
583            cx.notify();
584        }
585    }
586}
587
588fn log_contents(lines: &VecDeque<String>) -> String {
589    let (a, b) = lines.as_slices();
590    let log_contents = a.join("\n");
591    if b.is_empty() {
592        log_contents
593    } else {
594        log_contents + "\n" + &b.join("\n")
595    }
596}
597
598impl Render for LspLogView {
599    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
600        self.editor
601            .update(cx, |editor, cx| editor.render(cx).into_any_element())
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>, selected: bool, _: &WindowContext<'_>) -> AnyElement {
619        Label::new("LSP Logs")
620            .color(if selected {
621                Color::Default
622            } else {
623                Color::Muted
624            })
625            .into_any_element()
626    }
627
628    fn as_searchable(&self, handle: &View<Self>) -> Option<Box<dyn SearchableItemHandle>> {
629        Some(Box::new(handle.clone()))
630    }
631}
632
633impl SearchableItem for LspLogView {
634    type Match = <Editor as SearchableItem>::Match;
635
636    fn clear_matches(&mut self, cx: &mut ViewContext<Self>) {
637        self.editor.update(cx, |e, cx| e.clear_matches(cx))
638    }
639
640    fn update_matches(&mut self, matches: Vec<Self::Match>, cx: &mut ViewContext<Self>) {
641        self.editor
642            .update(cx, |e, cx| e.update_matches(matches, cx))
643    }
644
645    fn query_suggestion(&mut self, cx: &mut ViewContext<Self>) -> String {
646        self.editor.update(cx, |e, cx| e.query_suggestion(cx))
647    }
648
649    fn activate_match(
650        &mut self,
651        index: usize,
652        matches: Vec<Self::Match>,
653        cx: &mut ViewContext<Self>,
654    ) {
655        self.editor
656            .update(cx, |e, cx| e.activate_match(index, matches, cx))
657    }
658
659    fn select_matches(&mut self, matches: Vec<Self::Match>, cx: &mut ViewContext<Self>) {
660        self.editor
661            .update(cx, |e, cx| e.select_matches(matches, cx))
662    }
663
664    fn find_matches(
665        &mut self,
666        query: Arc<project::search::SearchQuery>,
667        cx: &mut ViewContext<Self>,
668    ) -> gpui::Task<Vec<Self::Match>> {
669        self.editor.update(cx, |e, cx| e.find_matches(query, cx))
670    }
671
672    fn replace(&mut self, _: &Self::Match, _: &SearchQuery, _: &mut ViewContext<Self>) {
673        // Since LSP Log is read-only, it doesn't make sense to support replace operation.
674    }
675    fn supported_options() -> workspace::searchable::SearchOptions {
676        workspace::searchable::SearchOptions {
677            case: true,
678            word: true,
679            regex: true,
680            // LSP log is read-only.
681            replacement: false,
682        }
683    }
684    fn active_match_index(
685        &mut self,
686        matches: Vec<Self::Match>,
687        cx: &mut ViewContext<Self>,
688    ) -> Option<usize> {
689        self.editor
690            .update(cx, |e, cx| e.active_match_index(matches, cx))
691    }
692}
693
694impl EventEmitter<ToolbarItemEvent> for LspLogToolbarItemView {}
695
696impl ToolbarItemView for LspLogToolbarItemView {
697    fn set_active_pane_item(
698        &mut self,
699        active_pane_item: Option<&dyn ItemHandle>,
700        cx: &mut ViewContext<Self>,
701    ) -> workspace::ToolbarItemLocation {
702        if let Some(item) = active_pane_item {
703            if let Some(log_view) = item.downcast::<LspLogView>() {
704                self.log_view = Some(log_view.clone());
705                self._log_view_subscription = Some(cx.observe(&log_view, |_, _, cx| {
706                    cx.notify();
707                }));
708                return ToolbarItemLocation::PrimaryLeft;
709            }
710        }
711        self.log_view = None;
712        self._log_view_subscription = None;
713        ToolbarItemLocation::Hidden
714    }
715}
716
717impl Render for LspLogToolbarItemView {
718    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
719        let Some(log_view) = self.log_view.clone() else {
720            return div();
721        };
722        let (menu_rows, current_server_id) = log_view.update(cx, |log_view, cx| {
723            let menu_rows = log_view.menu_items(cx).unwrap_or_default();
724            let current_server_id = log_view.current_server_id;
725            (menu_rows, current_server_id)
726        });
727
728        let current_server = current_server_id.and_then(|current_server_id| {
729            if let Ok(ix) = menu_rows.binary_search_by_key(&current_server_id, |e| e.server_id) {
730                Some(menu_rows[ix].clone())
731            } else {
732                None
733            }
734        });
735
736        let log_toolbar_view = cx.view().clone();
737        let lsp_menu = popover_menu("LspLogView")
738            .anchor(AnchorCorner::TopLeft)
739            .trigger(Button::new(
740                "language_server_menu_header",
741                current_server
742                    .and_then(|row| {
743                        Some(Cow::Owned(format!(
744                            "{} ({}) - {}",
745                            row.server_name.0,
746                            row.worktree_root_name,
747                            if row.rpc_trace_selected {
748                                RPC_MESSAGES
749                            } else {
750                                SERVER_LOGS
751                            },
752                        )))
753                    })
754                    .unwrap_or_else(|| "No server selected".into()),
755            ))
756            .menu(move |cx| {
757                let menu_rows = menu_rows.clone();
758                let log_view = log_view.clone();
759                let log_toolbar_view = log_toolbar_view.clone();
760                ContextMenu::build(cx, move |mut menu, cx| {
761                    for (ix, row) in menu_rows.into_iter().enumerate() {
762                        let server_selected = Some(row.server_id) == current_server_id;
763                        menu = menu
764                            .header(format!(
765                                "{} ({})",
766                                row.server_name.0, row.worktree_root_name
767                            ))
768                            .entry(
769                                SERVER_LOGS,
770                                None,
771                                cx.handler_for(&log_view, move |view, cx| {
772                                    view.show_logs_for_server(row.server_id, cx);
773                                }),
774                            );
775                        if server_selected && row.logs_selected {
776                            let selected_ix = menu.select_last();
777                            debug_assert_eq!(
778                                Some(ix * 3 + 1),
779                                selected_ix,
780                                "Could not scroll to a just added LSP menu item"
781                            );
782                        }
783
784                        menu = menu.custom_entry(
785                            {
786                                let log_toolbar_view = log_toolbar_view.clone();
787                                move |cx| {
788                                    h_stack()
789                                        .w_full()
790                                        .justify_between()
791                                        .child(Label::new(RPC_MESSAGES))
792                                        .child(
793                                            div().z_index(120).child(
794                                                Checkbox::new(
795                                                    ix,
796                                                    if row.rpc_trace_enabled {
797                                                        Selection::Selected
798                                                    } else {
799                                                        Selection::Unselected
800                                                    },
801                                                )
802                                                .on_click(cx.listener_for(
803                                                    &log_toolbar_view,
804                                                    move |view, selection, cx| {
805                                                        let enabled = matches!(
806                                                            selection,
807                                                            Selection::Selected
808                                                        );
809                                                        view.toggle_logging_for_server(
810                                                            row.server_id,
811                                                            enabled,
812                                                            cx,
813                                                        );
814                                                        cx.stop_propagation();
815                                                    },
816                                                )),
817                                            ),
818                                        )
819                                        .into_any_element()
820                                }
821                            },
822                            cx.handler_for(&log_view, move |view, cx| {
823                                view.show_rpc_trace_for_server(row.server_id, cx);
824                            }),
825                        );
826                        if server_selected && row.rpc_trace_selected {
827                            let selected_ix = menu.select_last();
828                            debug_assert_eq!(
829                                Some(ix * 3 + 2),
830                                selected_ix,
831                                "Could not scroll to a just added LSP menu item"
832                            );
833                        }
834                    }
835                    menu
836                })
837                .into()
838            });
839
840        h_stack().size_full().child(lsp_menu).child(
841            div()
842                .child(
843                    Button::new("clear_log_button", "Clear").on_click(cx.listener(
844                        |this, _, cx| {
845                            if let Some(log_view) = this.log_view.as_ref() {
846                                log_view.update(cx, |log_view, cx| {
847                                    log_view.editor.update(cx, |editor, cx| {
848                                        editor.set_read_only(false);
849                                        editor.clear(cx);
850                                        editor.set_read_only(true);
851                                    });
852                                })
853                            }
854                        },
855                    )),
856                )
857                .ml_2(),
858        )
859    }
860}
861
862const RPC_MESSAGES: &str = "RPC Messages";
863const SERVER_LOGS: &str = "Server Logs";
864
865impl LspLogToolbarItemView {
866    pub fn new() -> Self {
867        Self {
868            log_view: None,
869            _log_view_subscription: None,
870        }
871    }
872
873    fn toggle_logging_for_server(
874        &mut self,
875        id: LanguageServerId,
876        enabled: bool,
877        cx: &mut ViewContext<Self>,
878    ) {
879        if let Some(log_view) = &self.log_view {
880            log_view.update(cx, |log_view, cx| {
881                log_view.toggle_rpc_trace_for_server(id, enabled, cx);
882                if !enabled && Some(id) == log_view.current_server_id {
883                    log_view.show_logs_for_server(id, cx);
884                    cx.notify();
885                }
886                cx.focus(&log_view.focus_handle);
887            });
888        }
889        cx.notify();
890    }
891}
892
893pub enum Event {
894    NewServerLogEntry {
895        id: LanguageServerId,
896        entry: String,
897        is_rpc: bool,
898    },
899}
900
901impl EventEmitter<Event> for LogStore {}
902impl EventEmitter<Event> for LspLogView {}
903impl EventEmitter<EditorEvent> for LspLogView {}
904impl EventEmitter<SearchEvent> for LspLogView {}