lsp_log.rs

  1use collections::{HashMap, VecDeque};
  2use editor::{actions::MoveToEnd, Editor, EditorEvent};
  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 util::maybe;
 15use workspace::{
 16    item::{Item, ItemHandle, TabContentParams},
 17    searchable::{SearchEvent, SearchableItem, SearchableItemHandle},
 18    ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView, Workspace,
 19};
 20
 21const SEND_LINE: &str = "// Send:";
 22const RECEIVE_LINE: &str = "// Receive:";
 23const MAX_STORED_LOG_ENTRIES: usize = 2000;
 24
 25pub struct LogStore {
 26    projects: HashMap<WeakModel<Project>, ProjectState>,
 27    io_tx: mpsc::UnboundedSender<(WeakModel<Project>, LanguageServerId, IoKind, String)>,
 28}
 29
 30struct ProjectState {
 31    servers: HashMap<LanguageServerId, LanguageServerState>,
 32    _subscriptions: [gpui::Subscription; 2],
 33}
 34
 35struct LanguageServerState {
 36    log_messages: VecDeque<String>,
 37    rpc_state: Option<LanguageServerRpcState>,
 38    _io_logs_subscription: Option<lsp::Subscription>,
 39    _lsp_logs_subscription: Option<lsp::Subscription>,
 40}
 41
 42struct LanguageServerRpcState {
 43    rpc_messages: VecDeque<String>,
 44    last_message_kind: Option<MessageKind>,
 45}
 46
 47pub struct LspLogView {
 48    pub(crate) editor: View<Editor>,
 49    editor_subscriptions: Vec<Subscription>,
 50    log_store: Model<LogStore>,
 51    current_server_id: Option<LanguageServerId>,
 52    is_showing_rpc_trace: bool,
 53    project: Model<Project>,
 54    focus_handle: FocusHandle,
 55    _log_store_subscriptions: Vec<Subscription>,
 56}
 57
 58pub struct LspLogToolbarItemView {
 59    log_view: Option<View<LspLogView>>,
 60    _log_view_subscription: Option<Subscription>,
 61}
 62
 63#[derive(Copy, Clone, PartialEq, Eq)]
 64enum MessageKind {
 65    Send,
 66    Receive,
 67}
 68
 69#[derive(Clone, Debug, PartialEq)]
 70pub(crate) struct LogMenuItem {
 71    pub server_id: LanguageServerId,
 72    pub server_name: LanguageServerName,
 73    pub worktree_root_name: String,
 74    pub rpc_trace_enabled: bool,
 75    pub rpc_trace_selected: bool,
 76    pub logs_selected: bool,
 77}
 78
 79actions!(debug, [OpenLanguageServerLogs]);
 80
 81pub fn init(cx: &mut AppContext) {
 82    let log_store = cx.new_model(|cx| LogStore::new(cx));
 83
 84    cx.observe_new_views(move |workspace: &mut Workspace, cx| {
 85        let project = workspace.project();
 86        if project.read(cx).is_local() {
 87            log_store.update(cx, |store, cx| {
 88                store.add_project(&project, cx);
 89            });
 90        }
 91
 92        let log_store = log_store.clone();
 93        workspace.register_action(move |workspace, _: &OpenLanguageServerLogs, cx| {
 94            let project = workspace.project().read(cx);
 95            if project.is_local() {
 96                workspace.add_item_to_active_pane(
 97                    Box::new(cx.new_view(|cx| {
 98                        LspLogView::new(workspace.project().clone(), log_store.clone(), cx)
 99                    })),
100                    None,
101                    cx,
102                );
103            }
104        });
105    })
106    .detach();
107}
108
109impl LogStore {
110    pub fn new(cx: &mut ModelContext<Self>) -> Self {
111        let (io_tx, mut io_rx) = mpsc::unbounded();
112        let this = Self {
113            projects: HashMap::default(),
114            io_tx,
115        };
116        cx.spawn(|this, mut cx| async move {
117            while let Some((project, server_id, io_kind, message)) = io_rx.next().await {
118                if let Some(this) = this.upgrade() {
119                    this.update(&mut cx, |this, cx| {
120                        this.on_io(project, server_id, io_kind, &message, cx);
121                    })?;
122                }
123            }
124            anyhow::Ok(())
125        })
126        .detach_and_log_err(cx);
127        this
128    }
129
130    pub fn add_project(&mut self, project: &Model<Project>, cx: &mut ModelContext<Self>) {
131        let weak_project = project.downgrade();
132        self.projects.insert(
133            project.downgrade(),
134            ProjectState {
135                servers: HashMap::default(),
136                _subscriptions: [
137                    cx.observe_release(project, move |this, _, _| {
138                        this.projects.remove(&weak_project);
139                    }),
140                    cx.subscribe(project, |this, project, event, cx| match event {
141                        project::Event::LanguageServerAdded(id) => {
142                            this.add_language_server(&project, *id, cx);
143                        }
144                        project::Event::LanguageServerRemoved(id) => {
145                            this.remove_language_server(&project, *id, cx);
146                        }
147                        project::Event::LanguageServerLog(id, message) => {
148                            this.add_language_server_log(&project, *id, message, cx);
149                        }
150                        _ => {}
151                    }),
152                ],
153            },
154        );
155    }
156
157    fn add_language_server(
158        &mut self,
159        project: &Model<Project>,
160        id: LanguageServerId,
161        cx: &mut ModelContext<Self>,
162    ) -> Option<&mut LanguageServerState> {
163        let project_state = self.projects.get_mut(&project.downgrade())?;
164        let server_state = project_state.servers.entry(id).or_insert_with(|| {
165            cx.notify();
166            LanguageServerState {
167                rpc_state: None,
168                log_messages: VecDeque::with_capacity(MAX_STORED_LOG_ENTRIES),
169                _io_logs_subscription: None,
170                _lsp_logs_subscription: None,
171            }
172        });
173
174        let server = project.read(cx).language_server_for_id(id);
175        if let Some(server) = server.as_deref() {
176            if server.has_notification_handler::<lsp::notification::LogMessage>() {
177                // Another event wants to re-add the server that was already added and subscribed to, avoid doing it again.
178                return Some(server_state);
179            }
180        }
181
182        let weak_project = project.downgrade();
183        let io_tx = self.io_tx.clone();
184        server_state._io_logs_subscription = server.as_ref().map(|server| {
185            server.on_io(move |io_kind, message| {
186                io_tx
187                    .unbounded_send((weak_project.clone(), id, io_kind, message.to_string()))
188                    .ok();
189            })
190        });
191        let this = cx.handle().downgrade();
192        let weak_project = project.downgrade();
193        server_state._lsp_logs_subscription = server.map(|server| {
194            let server_id = server.server_id();
195            server.on_notification::<lsp::notification::LogMessage, _>({
196                move |params, mut cx| {
197                    if let Some((project, this)) = weak_project.upgrade().zip(this.upgrade()) {
198                        this.update(&mut cx, |this, cx| {
199                            this.add_language_server_log(&project, server_id, &params.message, cx);
200                        })
201                        .ok();
202                    }
203                }
204            })
205        });
206        Some(server_state)
207    }
208
209    fn add_language_server_log(
210        &mut self,
211        project: &Model<Project>,
212        id: LanguageServerId,
213        message: &str,
214        cx: &mut ModelContext<Self>,
215    ) -> Option<()> {
216        let language_server_state = match self
217            .projects
218            .get_mut(&project.downgrade())?
219            .servers
220            .get_mut(&id)
221        {
222            Some(existing_state) => existing_state,
223            None => self.add_language_server(&project, id, cx)?,
224        };
225
226        let log_lines = &mut language_server_state.log_messages;
227        while log_lines.len() >= MAX_STORED_LOG_ENTRIES {
228            log_lines.pop_front();
229        }
230        let message = message.trim();
231        log_lines.push_back(message.to_string());
232        cx.emit(Event::NewServerLogEntry {
233            id,
234            entry: message.to_string(),
235            is_rpc: false,
236        });
237        cx.notify();
238        Some(())
239    }
240
241    fn remove_language_server(
242        &mut self,
243        project: &Model<Project>,
244        id: LanguageServerId,
245        cx: &mut ModelContext<Self>,
246    ) -> Option<()> {
247        let project_state = self.projects.get_mut(&project.downgrade())?;
248        project_state.servers.remove(&id);
249        cx.notify();
250        Some(())
251    }
252
253    fn server_logs(
254        &self,
255        project: &Model<Project>,
256        server_id: LanguageServerId,
257    ) -> Option<&VecDeque<String>> {
258        let weak_project = project.downgrade();
259        let project_state = self.projects.get(&weak_project)?;
260        let server_state = project_state.servers.get(&server_id)?;
261        Some(&server_state.log_messages)
262    }
263
264    fn enable_rpc_trace_for_language_server(
265        &mut self,
266        project: &Model<Project>,
267        server_id: LanguageServerId,
268    ) -> Option<&mut LanguageServerRpcState> {
269        let weak_project = project.downgrade();
270        let project_state = self.projects.get_mut(&weak_project)?;
271        let server_state = project_state.servers.get_mut(&server_id)?;
272        let rpc_state = server_state
273            .rpc_state
274            .get_or_insert_with(|| LanguageServerRpcState {
275                rpc_messages: VecDeque::with_capacity(MAX_STORED_LOG_ENTRIES),
276                last_message_kind: None,
277            });
278        Some(rpc_state)
279    }
280
281    pub fn disable_rpc_trace_for_language_server(
282        &mut self,
283        project: &Model<Project>,
284        server_id: LanguageServerId,
285        _: &mut ModelContext<Self>,
286    ) -> Option<()> {
287        let project = project.downgrade();
288        let project_state = self.projects.get_mut(&project)?;
289        let server_state = project_state.servers.get_mut(&server_id)?;
290        server_state.rpc_state.take();
291        Some(())
292    }
293
294    fn on_io(
295        &mut self,
296        project: WeakModel<Project>,
297        language_server_id: LanguageServerId,
298        io_kind: IoKind,
299        message: &str,
300        cx: &mut ModelContext<Self>,
301    ) -> Option<()> {
302        let is_received = match io_kind {
303            IoKind::StdOut => true,
304            IoKind::StdIn => false,
305            IoKind::StdErr => {
306                let project = project.upgrade()?;
307                let message = format!("stderr: {}", message.trim());
308                self.add_language_server_log(&project, language_server_id, &message, cx);
309                return Some(());
310            }
311        };
312
313        let state = self
314            .projects
315            .get_mut(&project)?
316            .servers
317            .get_mut(&language_server_id)?
318            .rpc_state
319            .as_mut()?;
320        let kind = if is_received {
321            MessageKind::Receive
322        } else {
323            MessageKind::Send
324        };
325
326        let rpc_log_lines = &mut state.rpc_messages;
327        if state.last_message_kind != Some(kind) {
328            let line_before_message = match kind {
329                MessageKind::Send => SEND_LINE,
330                MessageKind::Receive => RECEIVE_LINE,
331            };
332            rpc_log_lines.push_back(line_before_message.to_string());
333            cx.emit(Event::NewServerLogEntry {
334                id: language_server_id,
335                entry: line_before_message.to_string(),
336                is_rpc: true,
337            });
338        }
339
340        while rpc_log_lines.len() >= MAX_STORED_LOG_ENTRIES {
341            rpc_log_lines.pop_front();
342        }
343        let message = message.trim();
344        rpc_log_lines.push_back(message.to_string());
345        cx.emit(Event::NewServerLogEntry {
346            id: language_server_id,
347            entry: message.to_string(),
348            is_rpc: true,
349        });
350        cx.notify();
351        Some(())
352    }
353}
354
355impl LspLogView {
356    pub fn new(
357        project: Model<Project>,
358        log_store: Model<LogStore>,
359        cx: &mut ViewContext<Self>,
360    ) -> Self {
361        let server_id = log_store
362            .read(cx)
363            .projects
364            .get(&project.downgrade())
365            .and_then(|project| project.servers.keys().copied().next());
366        let model_changes_subscription = cx.observe(&log_store, |this, store, cx| {
367            maybe!({
368                let project_state = store.read(cx).projects.get(&this.project.downgrade())?;
369                if let Some(current_lsp) = this.current_server_id {
370                    if !project_state.servers.contains_key(&current_lsp) {
371                        if let Some(server) = project_state.servers.iter().next() {
372                            if this.is_showing_rpc_trace {
373                                this.show_rpc_trace_for_server(*server.0, cx)
374                            } else {
375                                this.show_logs_for_server(*server.0, cx)
376                            }
377                        } else {
378                            this.current_server_id = None;
379                            this.editor.update(cx, |editor, cx| {
380                                editor.set_read_only(false);
381                                editor.clear(cx);
382                                editor.set_read_only(true);
383                            });
384                            cx.notify();
385                        }
386                    }
387                } else {
388                    if let Some(server) = project_state.servers.iter().next() {
389                        if this.is_showing_rpc_trace {
390                            this.show_rpc_trace_for_server(*server.0, cx)
391                        } else {
392                            this.show_logs_for_server(*server.0, cx)
393                        }
394                    }
395                }
396
397                Some(())
398            });
399
400            cx.notify();
401        });
402        let events_subscriptions = cx.subscribe(&log_store, |log_view, _, e, cx| match e {
403            Event::NewServerLogEntry { id, entry, is_rpc } => {
404                if log_view.current_server_id == Some(*id) {
405                    if (*is_rpc && log_view.is_showing_rpc_trace)
406                        || (!*is_rpc && !log_view.is_showing_rpc_trace)
407                    {
408                        log_view.editor.update(cx, |editor, cx| {
409                            editor.set_read_only(false);
410                            let last_point = editor.buffer().read(cx).len(cx);
411                            editor.edit(
412                                vec![
413                                    (last_point..last_point, entry.trim()),
414                                    (last_point..last_point, "\n"),
415                                ],
416                                cx,
417                            );
418                            editor.set_read_only(true);
419                        });
420                    }
421                }
422            }
423        });
424        let (editor, editor_subscriptions) = Self::editor_for_logs(String::new(), cx);
425
426        let focus_handle = cx.focus_handle();
427        let focus_subscription = cx.on_focus(&focus_handle, |log_view, cx| {
428            cx.focus_view(&log_view.editor);
429        });
430
431        let mut this = Self {
432            focus_handle,
433            editor,
434            editor_subscriptions,
435            project,
436            log_store,
437            current_server_id: None,
438            is_showing_rpc_trace: false,
439            _log_store_subscriptions: vec![
440                model_changes_subscription,
441                events_subscriptions,
442                focus_subscription,
443            ],
444        };
445        if let Some(server_id) = server_id {
446            this.show_logs_for_server(server_id, cx);
447        }
448        this
449    }
450
451    fn editor_for_logs(
452        log_contents: String,
453        cx: &mut ViewContext<Self>,
454    ) -> (View<Editor>, Vec<Subscription>) {
455        let editor = cx.new_view(|cx| {
456            let mut editor = Editor::multi_line(cx);
457            editor.set_text(log_contents, cx);
458            editor.move_to_end(&MoveToEnd, cx);
459            editor.set_read_only(true);
460            editor.set_show_inline_completions(false);
461            editor
462        });
463        let editor_subscription = cx.subscribe(
464            &editor,
465            |_, _, event: &EditorEvent, cx: &mut ViewContext<'_, LspLogView>| {
466                cx.emit(event.clone())
467            },
468        );
469        let search_subscription = cx.subscribe(
470            &editor,
471            |_, _, event: &SearchEvent, cx: &mut ViewContext<'_, LspLogView>| {
472                cx.emit(event.clone())
473            },
474        );
475        (editor, vec![editor_subscription, search_subscription])
476    }
477
478    pub(crate) fn menu_items<'a>(&'a self, cx: &'a AppContext) -> Option<Vec<LogMenuItem>> {
479        let log_store = self.log_store.read(cx);
480        let state = log_store.projects.get(&self.project.downgrade())?;
481        let mut rows = self
482            .project
483            .read(cx)
484            .language_servers()
485            .filter_map(|(server_id, language_server_name, worktree_id)| {
486                let worktree = self.project.read(cx).worktree_for_id(worktree_id, cx)?;
487                let state = state.servers.get(&server_id)?;
488                Some(LogMenuItem {
489                    server_id,
490                    server_name: language_server_name,
491                    worktree_root_name: worktree.read(cx).root_name().to_string(),
492                    rpc_trace_enabled: state.rpc_state.is_some(),
493                    rpc_trace_selected: self.is_showing_rpc_trace
494                        && self.current_server_id == Some(server_id),
495                    logs_selected: !self.is_showing_rpc_trace
496                        && self.current_server_id == Some(server_id),
497                })
498            })
499            .chain(
500                self.project
501                    .read(cx)
502                    .supplementary_language_servers()
503                    .filter_map(|(&server_id, (name, _))| {
504                        let state = state.servers.get(&server_id)?;
505                        Some(LogMenuItem {
506                            server_id,
507                            server_name: name.clone(),
508                            worktree_root_name: "supplementary".to_string(),
509                            rpc_trace_enabled: state.rpc_state.is_some(),
510                            rpc_trace_selected: self.is_showing_rpc_trace
511                                && self.current_server_id == Some(server_id),
512                            logs_selected: !self.is_showing_rpc_trace
513                                && self.current_server_id == Some(server_id),
514                        })
515                    }),
516            )
517            .collect::<Vec<_>>();
518        rows.sort_by_key(|row| row.server_id);
519        rows.dedup_by_key(|row| row.server_id);
520        Some(rows)
521    }
522
523    fn show_logs_for_server(&mut self, server_id: LanguageServerId, cx: &mut ViewContext<Self>) {
524        let log_contents = self
525            .log_store
526            .read(cx)
527            .server_logs(&self.project, server_id)
528            .map(log_contents);
529        if let Some(log_contents) = log_contents {
530            self.current_server_id = Some(server_id);
531            self.is_showing_rpc_trace = false;
532            let (editor, editor_subscriptions) = Self::editor_for_logs(log_contents, cx);
533            self.editor = editor;
534            self.editor_subscriptions = editor_subscriptions;
535            cx.notify();
536        }
537        cx.focus(&self.focus_handle);
538    }
539
540    fn show_rpc_trace_for_server(
541        &mut self,
542        server_id: LanguageServerId,
543        cx: &mut ViewContext<Self>,
544    ) {
545        let rpc_log = self.log_store.update(cx, |log_store, _| {
546            log_store
547                .enable_rpc_trace_for_language_server(&self.project, server_id)
548                .map(|state| log_contents(&state.rpc_messages))
549        });
550        if let Some(rpc_log) = rpc_log {
551            self.current_server_id = Some(server_id);
552            self.is_showing_rpc_trace = true;
553            let (editor, editor_subscriptions) = Self::editor_for_logs(rpc_log, cx);
554            let language = self.project.read(cx).languages().language_for_name("JSON");
555            editor
556                .read(cx)
557                .buffer()
558                .read(cx)
559                .as_singleton()
560                .expect("log buffer should be a singleton")
561                .update(cx, |_, cx| {
562                    cx.spawn({
563                        let buffer = cx.handle();
564                        |_, mut cx| async move {
565                            let language = language.await.ok();
566                            buffer.update(&mut cx, |buffer, cx| {
567                                buffer.set_language(language, cx);
568                            })
569                        }
570                    })
571                    .detach_and_log_err(cx);
572                });
573
574            self.editor = editor;
575            self.editor_subscriptions = editor_subscriptions;
576            cx.notify();
577        }
578
579        cx.focus(&self.focus_handle);
580    }
581
582    fn toggle_rpc_trace_for_server(
583        &mut self,
584        server_id: LanguageServerId,
585        enabled: bool,
586        cx: &mut ViewContext<Self>,
587    ) {
588        self.log_store.update(cx, |log_store, cx| {
589            if enabled {
590                log_store.enable_rpc_trace_for_language_server(&self.project, server_id);
591            } else {
592                log_store.disable_rpc_trace_for_language_server(&self.project, server_id, cx);
593            }
594        });
595        if !enabled && Some(server_id) == self.current_server_id {
596            self.show_logs_for_server(server_id, cx);
597            cx.notify();
598        }
599    }
600}
601
602fn log_contents(lines: &VecDeque<String>) -> String {
603    let (a, b) = lines.as_slices();
604    let log_contents = a.join("\n");
605    if b.is_empty() {
606        log_contents
607    } else {
608        log_contents + "\n" + &b.join("\n")
609    }
610}
611
612impl Render for LspLogView {
613    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
614        self.editor
615            .update(cx, |editor, cx| editor.render(cx).into_any_element())
616    }
617}
618
619impl FocusableView for LspLogView {
620    fn focus_handle(&self, _: &AppContext) -> FocusHandle {
621        self.focus_handle.clone()
622    }
623}
624
625impl Item for LspLogView {
626    type Event = EditorEvent;
627
628    fn to_item_events(event: &Self::Event, f: impl FnMut(workspace::item::ItemEvent)) {
629        Editor::to_item_events(event, f)
630    }
631
632    fn tab_content(&self, params: TabContentParams, _: &WindowContext<'_>) -> AnyElement {
633        Label::new("LSP Logs")
634            .color(if params.selected {
635                Color::Default
636            } else {
637                Color::Muted
638            })
639            .into_any_element()
640    }
641
642    fn telemetry_event_text(&self) -> Option<&'static str> {
643        None
644    }
645
646    fn as_searchable(&self, handle: &View<Self>) -> Option<Box<dyn SearchableItemHandle>> {
647        Some(Box::new(handle.clone()))
648    }
649}
650
651impl SearchableItem for LspLogView {
652    type Match = <Editor as SearchableItem>::Match;
653
654    fn clear_matches(&mut self, cx: &mut ViewContext<Self>) {
655        self.editor.update(cx, |e, cx| e.clear_matches(cx))
656    }
657
658    fn update_matches(&mut self, matches: &[Self::Match], cx: &mut ViewContext<Self>) {
659        self.editor
660            .update(cx, |e, cx| e.update_matches(matches, cx))
661    }
662
663    fn query_suggestion(&mut self, cx: &mut ViewContext<Self>) -> String {
664        self.editor.update(cx, |e, cx| e.query_suggestion(cx))
665    }
666
667    fn activate_match(
668        &mut self,
669        index: usize,
670        matches: &[Self::Match],
671        cx: &mut ViewContext<Self>,
672    ) {
673        self.editor
674            .update(cx, |e, cx| e.activate_match(index, matches, cx))
675    }
676
677    fn select_matches(&mut self, matches: &[Self::Match], cx: &mut ViewContext<Self>) {
678        self.editor
679            .update(cx, |e, cx| e.select_matches(matches, cx))
680    }
681
682    fn find_matches(
683        &mut self,
684        query: Arc<project::search::SearchQuery>,
685        cx: &mut ViewContext<Self>,
686    ) -> gpui::Task<Vec<Self::Match>> {
687        self.editor.update(cx, |e, cx| e.find_matches(query, cx))
688    }
689
690    fn replace(&mut self, _: &Self::Match, _: &SearchQuery, _: &mut ViewContext<Self>) {
691        // Since LSP Log is read-only, it doesn't make sense to support replace operation.
692    }
693    fn supported_options() -> workspace::searchable::SearchOptions {
694        workspace::searchable::SearchOptions {
695            case: true,
696            word: true,
697            regex: true,
698            // LSP log is read-only.
699            replacement: false,
700        }
701    }
702    fn active_match_index(
703        &mut self,
704        matches: &[Self::Match],
705        cx: &mut ViewContext<Self>,
706    ) -> Option<usize> {
707        self.editor
708            .update(cx, |e, cx| e.active_match_index(matches, cx))
709    }
710}
711
712impl EventEmitter<ToolbarItemEvent> for LspLogToolbarItemView {}
713
714impl ToolbarItemView for LspLogToolbarItemView {
715    fn set_active_pane_item(
716        &mut self,
717        active_pane_item: Option<&dyn ItemHandle>,
718        cx: &mut ViewContext<Self>,
719    ) -> workspace::ToolbarItemLocation {
720        if let Some(item) = active_pane_item {
721            if let Some(log_view) = item.downcast::<LspLogView>() {
722                self.log_view = Some(log_view.clone());
723                self._log_view_subscription = Some(cx.observe(&log_view, |_, _, cx| {
724                    cx.notify();
725                }));
726                return ToolbarItemLocation::PrimaryLeft;
727            }
728        }
729        self.log_view = None;
730        self._log_view_subscription = None;
731        ToolbarItemLocation::Hidden
732    }
733}
734
735impl Render for LspLogToolbarItemView {
736    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
737        let Some(log_view) = self.log_view.clone() else {
738            return div();
739        };
740        let (menu_rows, current_server_id) = log_view.update(cx, |log_view, cx| {
741            let menu_rows = log_view.menu_items(cx).unwrap_or_default();
742            let current_server_id = log_view.current_server_id;
743            (menu_rows, current_server_id)
744        });
745
746        let current_server = current_server_id.and_then(|current_server_id| {
747            if let Ok(ix) = menu_rows.binary_search_by_key(&current_server_id, |e| e.server_id) {
748                Some(menu_rows[ix].clone())
749            } else {
750                None
751            }
752        });
753
754        let log_toolbar_view = cx.view().clone();
755        let lsp_menu = popover_menu("LspLogView")
756            .anchor(AnchorCorner::TopLeft)
757            .trigger(Button::new(
758                "language_server_menu_header",
759                current_server
760                    .map(|row| {
761                        Cow::Owned(format!(
762                            "{} ({}) - {}",
763                            row.server_name.0,
764                            row.worktree_root_name,
765                            if row.rpc_trace_selected {
766                                RPC_MESSAGES
767                            } else {
768                                SERVER_LOGS
769                            },
770                        ))
771                    })
772                    .unwrap_or_else(|| "No server selected".into()),
773            ))
774            .menu(move |cx| {
775                let menu_rows = menu_rows.clone();
776                let log_view = log_view.clone();
777                let log_toolbar_view = log_toolbar_view.clone();
778                ContextMenu::build(cx, move |mut menu, cx| {
779                    for (ix, row) in menu_rows.into_iter().enumerate() {
780                        let server_selected = Some(row.server_id) == current_server_id;
781                        menu = menu
782                            .header(format!(
783                                "{} ({})",
784                                row.server_name.0, row.worktree_root_name
785                            ))
786                            .entry(
787                                SERVER_LOGS,
788                                None,
789                                cx.handler_for(&log_view, move |view, cx| {
790                                    view.show_logs_for_server(row.server_id, cx);
791                                }),
792                            );
793                        if server_selected && row.logs_selected {
794                            let selected_ix = menu.select_last();
795                            debug_assert_eq!(
796                                Some(ix * 3 + 1),
797                                selected_ix,
798                                "Could not scroll to a just added LSP menu item"
799                            );
800                        }
801
802                        menu = menu.custom_entry(
803                            {
804                                let log_toolbar_view = log_toolbar_view.clone();
805                                move |cx| {
806                                    h_flex()
807                                        .w_full()
808                                        .justify_between()
809                                        .child(Label::new(RPC_MESSAGES))
810                                        .child(
811                                            div().child(
812                                                Checkbox::new(
813                                                    ix,
814                                                    if row.rpc_trace_enabled {
815                                                        Selection::Selected
816                                                    } else {
817                                                        Selection::Unselected
818                                                    },
819                                                )
820                                                .on_click(cx.listener_for(
821                                                    &log_toolbar_view,
822                                                    move |view, selection, cx| {
823                                                        let enabled = matches!(
824                                                            selection,
825                                                            Selection::Selected
826                                                        );
827                                                        view.toggle_rpc_logging_for_server(
828                                                            row.server_id,
829                                                            enabled,
830                                                            cx,
831                                                        );
832                                                        cx.stop_propagation();
833                                                    },
834                                                )),
835                                            ),
836                                        )
837                                        .into_any_element()
838                                }
839                            },
840                            cx.handler_for(&log_view, move |view, cx| {
841                                view.show_rpc_trace_for_server(row.server_id, cx);
842                            }),
843                        );
844                        if server_selected && row.rpc_trace_selected {
845                            let selected_ix = menu.select_last();
846                            debug_assert_eq!(
847                                Some(ix * 3 + 2),
848                                selected_ix,
849                                "Could not scroll to a just added LSP menu item"
850                            );
851                        }
852                    }
853                    menu
854                })
855                .into()
856            });
857
858        h_flex().size_full().child(lsp_menu).child(
859            div()
860                .child(
861                    Button::new("clear_log_button", "Clear").on_click(cx.listener(
862                        |this, _, cx| {
863                            if let Some(log_view) = this.log_view.as_ref() {
864                                log_view.update(cx, |log_view, cx| {
865                                    log_view.editor.update(cx, |editor, cx| {
866                                        editor.set_read_only(false);
867                                        editor.clear(cx);
868                                        editor.set_read_only(true);
869                                    });
870                                })
871                            }
872                        },
873                    )),
874                )
875                .ml_2(),
876        )
877    }
878}
879
880const RPC_MESSAGES: &str = "RPC Messages";
881const SERVER_LOGS: &str = "Server Logs";
882
883impl LspLogToolbarItemView {
884    pub fn new() -> Self {
885        Self {
886            log_view: None,
887            _log_view_subscription: None,
888        }
889    }
890
891    fn toggle_rpc_logging_for_server(
892        &mut self,
893        id: LanguageServerId,
894        enabled: bool,
895        cx: &mut ViewContext<Self>,
896    ) {
897        if let Some(log_view) = &self.log_view {
898            log_view.update(cx, |log_view, cx| {
899                log_view.toggle_rpc_trace_for_server(id, enabled, cx);
900                if !enabled && Some(id) == log_view.current_server_id {
901                    log_view.show_logs_for_server(id, cx);
902                    cx.notify();
903                } else if enabled {
904                    log_view.show_rpc_trace_for_server(id, cx);
905                    cx.notify();
906                }
907                cx.focus(&log_view.focus_handle);
908            });
909        }
910        cx.notify();
911    }
912}
913
914pub enum Event {
915    NewServerLogEntry {
916        id: LanguageServerId,
917        entry: String,
918        is_rpc: bool,
919    },
920}
921
922impl EventEmitter<Event> for LogStore {}
923impl EventEmitter<Event> for LspLogView {}
924impl EventEmitter<EditorEvent> for LspLogView {}
925impl EventEmitter<SearchEvent> for LspLogView {}