chat_panel.rs

   1use crate::{collab_panel, ChatPanelSettings};
   2use anyhow::Result;
   3use call::{room, ActiveCall};
   4use channel::{ChannelChat, ChannelChatEvent, ChannelMessage, ChannelMessageId, ChannelStore};
   5use client::Client;
   6use collections::HashMap;
   7use db::kvp::KEY_VALUE_STORE;
   8use editor::Editor;
   9use gpui::{
  10    actions, div, list, prelude::*, px, Action, AppContext, AsyncWindowContext, CursorStyle,
  11    DismissEvent, ElementId, EventEmitter, FocusHandle, FocusableView, FontStyle, FontWeight,
  12    HighlightStyle, ListOffset, ListScrollEvent, ListState, Model, Render, StyledText,
  13    Subscription, Task, View, ViewContext, VisualContext, WeakView,
  14};
  15use language::LanguageRegistry;
  16use menu::Confirm;
  17use message_editor::MessageEditor;
  18use project::Fs;
  19use rich_text::RichText;
  20use serde::{Deserialize, Serialize};
  21use settings::Settings;
  22use std::{sync::Arc, time::Duration};
  23use time::{OffsetDateTime, UtcOffset};
  24use ui::{
  25    popover_menu, prelude::*, Avatar, Button, ContextMenu, IconButton, IconName, KeyBinding, Label,
  26    TabBar, Tooltip,
  27};
  28use util::{ResultExt, TryFutureExt};
  29use workspace::{
  30    dock::{DockPosition, Panel, PanelEvent},
  31    Workspace,
  32};
  33
  34mod message_editor;
  35
  36const MESSAGE_LOADING_THRESHOLD: usize = 50;
  37const CHAT_PANEL_KEY: &'static str = "ChatPanel";
  38
  39pub fn init(cx: &mut AppContext) {
  40    cx.observe_new_views(|workspace: &mut Workspace, _| {
  41        workspace.register_action(|workspace, _: &ToggleFocus, cx| {
  42            workspace.toggle_panel_focus::<ChatPanel>(cx);
  43        });
  44    })
  45    .detach();
  46}
  47
  48pub struct ChatPanel {
  49    client: Arc<Client>,
  50    channel_store: Model<ChannelStore>,
  51    languages: Arc<LanguageRegistry>,
  52    message_list: ListState,
  53    active_chat: Option<(Model<ChannelChat>, Subscription)>,
  54    message_editor: View<MessageEditor>,
  55    local_timezone: UtcOffset,
  56    fs: Arc<dyn Fs>,
  57    width: Option<Pixels>,
  58    active: bool,
  59    pending_serialization: Task<Option<()>>,
  60    subscriptions: Vec<gpui::Subscription>,
  61    is_scrolled_to_bottom: bool,
  62    markdown_data: HashMap<ChannelMessageId, RichText>,
  63    focus_handle: FocusHandle,
  64    open_context_menu: Option<(u64, Subscription)>,
  65    highlighted_message: Option<(u64, Task<()>)>,
  66    last_acknowledged_message_id: Option<u64>,
  67}
  68
  69#[derive(Serialize, Deserialize)]
  70struct SerializedChatPanel {
  71    width: Option<Pixels>,
  72}
  73
  74actions!(chat_panel, [ToggleFocus, CloseReplyPreview]);
  75
  76impl ChatPanel {
  77    pub fn new(workspace: &mut Workspace, cx: &mut ViewContext<Workspace>) -> View<Self> {
  78        let fs = workspace.app_state().fs.clone();
  79        let client = workspace.app_state().client.clone();
  80        let channel_store = ChannelStore::global(cx);
  81        let languages = workspace.app_state().languages.clone();
  82
  83        let input_editor = cx.new_view(|cx| {
  84            MessageEditor::new(
  85                languages.clone(),
  86                channel_store.clone(),
  87                cx.new_view(|cx| Editor::auto_height(4, cx)),
  88                cx,
  89            )
  90        });
  91
  92        cx.new_view(|cx: &mut ViewContext<Self>| {
  93            let view = cx.view().downgrade();
  94            let message_list =
  95                ListState::new(0, gpui::ListAlignment::Bottom, px(1000.), move |ix, cx| {
  96                    if let Some(view) = view.upgrade() {
  97                        view.update(cx, |view, cx| {
  98                            view.render_message(ix, cx).into_any_element()
  99                        })
 100                    } else {
 101                        div().into_any()
 102                    }
 103                });
 104
 105            message_list.set_scroll_handler(cx.listener(|this, event: &ListScrollEvent, cx| {
 106                if event.visible_range.start < MESSAGE_LOADING_THRESHOLD {
 107                    this.load_more_messages(cx);
 108                }
 109                this.is_scrolled_to_bottom = !event.is_scrolled;
 110            }));
 111
 112            let mut this = Self {
 113                fs,
 114                client,
 115                channel_store,
 116                languages,
 117                message_list,
 118                active_chat: Default::default(),
 119                pending_serialization: Task::ready(None),
 120                message_editor: input_editor,
 121                local_timezone: cx.local_timezone(),
 122                subscriptions: Vec::new(),
 123                is_scrolled_to_bottom: true,
 124                active: false,
 125                width: None,
 126                markdown_data: Default::default(),
 127                focus_handle: cx.focus_handle(),
 128                open_context_menu: None,
 129                highlighted_message: None,
 130                last_acknowledged_message_id: None,
 131            };
 132
 133            if let Some(channel_id) = ActiveCall::global(cx)
 134                .read(cx)
 135                .room()
 136                .and_then(|room| room.read(cx).channel_id())
 137            {
 138                this.select_channel(channel_id, None, cx)
 139                    .detach_and_log_err(cx);
 140            }
 141
 142            this.subscriptions.push(cx.subscribe(
 143                &ActiveCall::global(cx),
 144                move |this: &mut Self, call, event: &room::Event, cx| match event {
 145                    room::Event::RoomJoined { channel_id } => {
 146                        if let Some(channel_id) = channel_id {
 147                            this.select_channel(*channel_id, None, cx)
 148                                .detach_and_log_err(cx);
 149
 150                            if call
 151                                .read(cx)
 152                                .room()
 153                                .is_some_and(|room| room.read(cx).contains_guests())
 154                            {
 155                                cx.emit(PanelEvent::Activate)
 156                            }
 157                        }
 158                    }
 159                    room::Event::Left { channel_id } => {
 160                        if channel_id == &this.channel_id(cx) {
 161                            cx.emit(PanelEvent::Close)
 162                        }
 163                    }
 164                    _ => {}
 165                },
 166            ));
 167
 168            this
 169        })
 170    }
 171
 172    pub fn channel_id(&self, cx: &AppContext) -> Option<u64> {
 173        self.active_chat
 174            .as_ref()
 175            .map(|(chat, _)| chat.read(cx).channel_id)
 176    }
 177
 178    pub fn is_scrolled_to_bottom(&self) -> bool {
 179        self.is_scrolled_to_bottom
 180    }
 181
 182    pub fn active_chat(&self) -> Option<Model<ChannelChat>> {
 183        self.active_chat.as_ref().map(|(chat, _)| chat.clone())
 184    }
 185
 186    pub fn load(
 187        workspace: WeakView<Workspace>,
 188        cx: AsyncWindowContext,
 189    ) -> Task<Result<View<Self>>> {
 190        cx.spawn(|mut cx| async move {
 191            let serialized_panel = if let Some(panel) = cx
 192                .background_executor()
 193                .spawn(async move { KEY_VALUE_STORE.read_kvp(CHAT_PANEL_KEY) })
 194                .await
 195                .log_err()
 196                .flatten()
 197            {
 198                Some(serde_json::from_str::<SerializedChatPanel>(&panel)?)
 199            } else {
 200                None
 201            };
 202
 203            workspace.update(&mut cx, |workspace, cx| {
 204                let panel = Self::new(workspace, cx);
 205                if let Some(serialized_panel) = serialized_panel {
 206                    panel.update(cx, |panel, cx| {
 207                        panel.width = serialized_panel.width;
 208                        cx.notify();
 209                    });
 210                }
 211                panel
 212            })
 213        })
 214    }
 215
 216    fn serialize(&mut self, cx: &mut ViewContext<Self>) {
 217        let width = self.width;
 218        self.pending_serialization = cx.background_executor().spawn(
 219            async move {
 220                KEY_VALUE_STORE
 221                    .write_kvp(
 222                        CHAT_PANEL_KEY.into(),
 223                        serde_json::to_string(&SerializedChatPanel { width })?,
 224                    )
 225                    .await?;
 226                anyhow::Ok(())
 227            }
 228            .log_err(),
 229        );
 230    }
 231
 232    fn set_active_chat(&mut self, chat: Model<ChannelChat>, cx: &mut ViewContext<Self>) {
 233        if self.active_chat.as_ref().map(|e| &e.0) != Some(&chat) {
 234            let channel_id = chat.read(cx).channel_id;
 235            {
 236                self.markdown_data.clear();
 237                let chat = chat.read(cx);
 238                self.message_list.reset(chat.message_count());
 239
 240                let channel_name = chat.channel(cx).map(|channel| channel.name.clone());
 241                self.message_editor.update(cx, |editor, cx| {
 242                    editor.set_channel(channel_id, channel_name, cx);
 243                    editor.clear_reply_to_message_id();
 244                });
 245            };
 246            let subscription = cx.subscribe(&chat, Self::channel_did_change);
 247            self.active_chat = Some((chat, subscription));
 248            self.acknowledge_last_message(cx);
 249            cx.notify();
 250        }
 251    }
 252
 253    fn channel_did_change(
 254        &mut self,
 255        _: Model<ChannelChat>,
 256        event: &ChannelChatEvent,
 257        cx: &mut ViewContext<Self>,
 258    ) {
 259        match event {
 260            ChannelChatEvent::MessagesUpdated {
 261                old_range,
 262                new_count,
 263            } => {
 264                self.message_list.splice(old_range.clone(), *new_count);
 265                if self.active {
 266                    self.acknowledge_last_message(cx);
 267                }
 268            }
 269            ChannelChatEvent::NewMessage {
 270                channel_id,
 271                message_id,
 272            } => {
 273                if !self.active {
 274                    self.channel_store.update(cx, |store, cx| {
 275                        store.update_latest_message_id(*channel_id, *message_id, cx)
 276                    })
 277                }
 278            }
 279        }
 280        cx.notify();
 281    }
 282
 283    fn acknowledge_last_message(&mut self, cx: &mut ViewContext<Self>) {
 284        if self.active && self.is_scrolled_to_bottom {
 285            if let Some((chat, _)) = &self.active_chat {
 286                if let Some(channel_id) = self.channel_id(cx) {
 287                    self.last_acknowledged_message_id = self
 288                        .channel_store
 289                        .read(cx)
 290                        .last_acknowledge_message_id(channel_id);
 291                }
 292
 293                chat.update(cx, |chat, cx| {
 294                    chat.acknowledge_last_message(cx);
 295                });
 296            }
 297        }
 298    }
 299
 300    fn render_replied_to_message(
 301        &mut self,
 302        message_id: Option<ChannelMessageId>,
 303        reply_to_message: &ChannelMessage,
 304        cx: &mut ViewContext<Self>,
 305    ) -> impl IntoElement {
 306        let body_element_id: ElementId = match message_id {
 307            Some(ChannelMessageId::Saved(id)) => ("reply-to-saved-message", id).into(),
 308            Some(ChannelMessageId::Pending(id)) => ("reply-to-pending-message", id).into(), // This should never happen
 309            None => ("composing-reply").into(),
 310        };
 311
 312        let message_element_id: ElementId = match message_id {
 313            Some(ChannelMessageId::Saved(id)) => ("reply-to-saved-message-container", id).into(),
 314            Some(ChannelMessageId::Pending(id)) => {
 315                ("reply-to-pending-message-container", id).into()
 316            } // This should never happen
 317            None => ("composing-reply-container").into(),
 318        };
 319
 320        let current_channel_id = self.channel_id(cx);
 321        let reply_to_message_id = reply_to_message.id;
 322
 323        let reply_to_message_body = self
 324            .markdown_data
 325            .entry(reply_to_message.id)
 326            .or_insert_with(|| {
 327                Self::render_markdown_with_mentions(
 328                    &self.languages,
 329                    self.client.id(),
 330                    reply_to_message,
 331                )
 332            });
 333
 334        const REPLY_TO_PREFIX: &str = "Reply to @";
 335
 336        div().flex_grow().child(
 337            v_flex()
 338                .id(message_element_id)
 339                .text_ui_xs()
 340                .child(
 341                    h_flex()
 342                        .gap_x_1()
 343                        .items_center()
 344                        .justify_start()
 345                        .overflow_x_hidden()
 346                        .whitespace_nowrap()
 347                        .child(
 348                            StyledText::new(format!(
 349                                "{}{}",
 350                                REPLY_TO_PREFIX,
 351                                reply_to_message.sender.github_login.clone()
 352                            ))
 353                            .with_highlights(
 354                                &cx.text_style(),
 355                                vec![(
 356                                    (REPLY_TO_PREFIX.len() - 1)
 357                                        ..(reply_to_message.sender.github_login.len()
 358                                            + REPLY_TO_PREFIX.len()),
 359                                    HighlightStyle {
 360                                        font_weight: Some(FontWeight::BOLD),
 361                                        ..Default::default()
 362                                    },
 363                                )],
 364                            ),
 365                        ),
 366                )
 367                .child(
 368                    div()
 369                        .border_l_2()
 370                        .border_color(cx.theme().colors().border)
 371                        .px_1()
 372                        .py_0p5()
 373                        .mb_1()
 374                        .child(
 375                            div()
 376                                .overflow_hidden()
 377                                .max_h_12()
 378                                .child(reply_to_message_body.element(body_element_id, cx)),
 379                        ),
 380                )
 381                .cursor(CursorStyle::PointingHand)
 382                .tooltip(|cx| Tooltip::text("Go to message", cx))
 383                .on_click(cx.listener(move |chat_panel, _, cx| {
 384                    if let Some(channel_id) = current_channel_id {
 385                        chat_panel
 386                            .select_channel(channel_id, reply_to_message_id.into(), cx)
 387                            .detach_and_log_err(cx)
 388                    }
 389                })),
 390        )
 391    }
 392
 393    fn render_message(&mut self, ix: usize, cx: &mut ViewContext<Self>) -> impl IntoElement {
 394        let active_chat = &self.active_chat.as_ref().unwrap().0;
 395        let (message, is_continuation_from_previous, is_admin) =
 396            active_chat.update(cx, |active_chat, cx| {
 397                let is_admin = self
 398                    .channel_store
 399                    .read(cx)
 400                    .is_channel_admin(active_chat.channel_id);
 401
 402                let last_message = active_chat.message(ix.saturating_sub(1));
 403                let this_message = active_chat.message(ix).clone();
 404
 405                let duration_since_last_message = this_message.timestamp - last_message.timestamp;
 406                let is_continuation_from_previous = last_message.sender.id
 407                    == this_message.sender.id
 408                    && last_message.id != this_message.id
 409                    && duration_since_last_message < Duration::from_secs(5 * 60);
 410
 411                if let ChannelMessageId::Saved(id) = this_message.id {
 412                    if this_message
 413                        .mentions
 414                        .iter()
 415                        .any(|(_, user_id)| Some(*user_id) == self.client.user_id())
 416                    {
 417                        active_chat.acknowledge_message(id);
 418                    }
 419                }
 420
 421                (this_message, is_continuation_from_previous, is_admin)
 422            });
 423
 424        let _is_pending = message.is_pending();
 425
 426        let belongs_to_user = Some(message.sender.id) == self.client.user_id();
 427        let can_delete_message = belongs_to_user || is_admin;
 428
 429        let element_id: ElementId = match message.id {
 430            ChannelMessageId::Saved(id) => ("saved-message", id).into(),
 431            ChannelMessageId::Pending(id) => ("pending-message", id).into(),
 432        };
 433        let this = cx.view().clone();
 434
 435        let mentioning_you = message
 436            .mentions
 437            .iter()
 438            .any(|m| Some(m.1) == self.client.user_id());
 439
 440        let message_id = match message.id {
 441            ChannelMessageId::Saved(id) => Some(id),
 442            ChannelMessageId::Pending(_) => None,
 443        };
 444
 445        let reply_to_message = message
 446            .reply_to_message_id
 447            .map(|id| active_chat.read(cx).find_loaded_message(id))
 448            .flatten()
 449            .cloned();
 450
 451        let replied_to_you =
 452            reply_to_message.as_ref().map(|m| m.sender.id) == self.client.user_id();
 453
 454        let is_highlighted_message = self
 455            .highlighted_message
 456            .as_ref()
 457            .is_some_and(|(id, _)| Some(id) == message_id.as_ref());
 458        let background = if is_highlighted_message {
 459            cx.theme().status().info_background
 460        } else if mentioning_you || replied_to_you {
 461            cx.theme().colors().background
 462        } else {
 463            cx.theme().colors().panel_background
 464        };
 465
 466        v_flex()
 467            .w_full()
 468            .relative()
 469            .child(
 470                div()
 471                    .bg(background)
 472                    .rounded_md()
 473                    .overflow_hidden()
 474                    .px_1()
 475                    .py_0p5()
 476                    .when(!is_continuation_from_previous, |this| {
 477                        this.mt_2().child(
 478                            h_flex()
 479                                .text_ui_sm()
 480                                .child(div().absolute().child(
 481                                    Avatar::new(message.sender.avatar_uri.clone()).size(rems(1.)),
 482                                ))
 483                                .child(
 484                                    div()
 485                                        .pl(cx.rem_size() + px(6.0))
 486                                        .pr(px(8.0))
 487                                        .font_weight(FontWeight::BOLD)
 488                                        .child(Label::new(message.sender.github_login.clone())),
 489                                )
 490                                .child(
 491                                    Label::new(format_timestamp(
 492                                        OffsetDateTime::now_utc(),
 493                                        message.timestamp,
 494                                        self.local_timezone,
 495                                        None,
 496                                    ))
 497                                    .size(LabelSize::Small)
 498                                    .color(Color::Muted),
 499                                ),
 500                        )
 501                    })
 502                    .when(
 503                        message.reply_to_message_id.is_some() && reply_to_message.is_none(),
 504                        |this| {
 505                            const MESSAGE_DELETED: &str = "Message has been deleted";
 506
 507                            let body_text = StyledText::new(MESSAGE_DELETED).with_highlights(
 508                                &cx.text_style(),
 509                                vec![(
 510                                    0..MESSAGE_DELETED.len(),
 511                                    HighlightStyle {
 512                                        font_style: Some(FontStyle::Italic),
 513                                        ..Default::default()
 514                                    },
 515                                )],
 516                            );
 517
 518                            this.child(
 519                                div()
 520                                    .border_l_2()
 521                                    .text_ui_xs()
 522                                    .border_color(cx.theme().colors().border)
 523                                    .px_1()
 524                                    .py_0p5()
 525                                    .child(body_text),
 526                            )
 527                        },
 528                    )
 529                    .when_some(reply_to_message, |el, reply_to_message| {
 530                        el.child(self.render_replied_to_message(
 531                            Some(message.id),
 532                            &reply_to_message,
 533                            cx,
 534                        ))
 535                    })
 536                    .when(mentioning_you || replied_to_you, |this| this.my_0p5())
 537                    .map(|el| {
 538                        let text = self.markdown_data.entry(message.id).or_insert_with(|| {
 539                            Self::render_markdown_with_mentions(
 540                                &self.languages,
 541                                self.client.id(),
 542                                &message,
 543                            )
 544                        });
 545                        el.child(
 546                            v_flex()
 547                                .w_full()
 548                                .text_ui_sm()
 549                                .id(element_id)
 550                                .group("")
 551                                .child(text.element("body".into(), cx))
 552                                .child(
 553                                    div()
 554                                        .absolute()
 555                                        .z_index(1)
 556                                        .right_0()
 557                                        .w_6()
 558                                        .bg(background)
 559                                        .when(!self.has_open_menu(message_id), |el| {
 560                                            el.visible_on_hover("")
 561                                        })
 562                                        .when_some(message_id, |el, message_id| {
 563                                            el.child(
 564                                                popover_menu(("menu", message_id))
 565                                                    .trigger(IconButton::new(
 566                                                        ("trigger", message_id),
 567                                                        IconName::Ellipsis,
 568                                                    ))
 569                                                    .menu(move |cx| {
 570                                                        Some(Self::render_message_menu(
 571                                                            &this,
 572                                                            message_id,
 573                                                            can_delete_message,
 574                                                            cx,
 575                                                        ))
 576                                                    }),
 577                                            )
 578                                        }),
 579                                ),
 580                        )
 581                    }),
 582            )
 583            .when(
 584                self.last_acknowledged_message_id
 585                    .is_some_and(|l| Some(l) == message_id),
 586                |this| {
 587                    this.child(
 588                        h_flex()
 589                            .py_2()
 590                            .gap_1()
 591                            .items_center()
 592                            .child(div().w_full().h_0p5().bg(cx.theme().colors().border))
 593                            .child(
 594                                div()
 595                                    .px_1()
 596                                    .rounded_md()
 597                                    .text_ui_xs()
 598                                    .bg(cx.theme().colors().background)
 599                                    .child("New messages"),
 600                            )
 601                            .child(div().w_full().h_0p5().bg(cx.theme().colors().border)),
 602                    )
 603                },
 604            )
 605    }
 606
 607    fn has_open_menu(&self, message_id: Option<u64>) -> bool {
 608        match self.open_context_menu.as_ref() {
 609            Some((id, _)) => Some(*id) == message_id,
 610            None => false,
 611        }
 612    }
 613
 614    fn render_message_menu(
 615        this: &View<Self>,
 616        message_id: u64,
 617        can_delete_message: bool,
 618        cx: &mut WindowContext,
 619    ) -> View<ContextMenu> {
 620        let menu = {
 621            ContextMenu::build(cx, move |menu, cx| {
 622                menu.entry(
 623                    "Reply to message",
 624                    None,
 625                    cx.handler_for(&this, move |this, cx| {
 626                        this.message_editor.update(cx, |editor, cx| {
 627                            editor.set_reply_to_message_id(message_id);
 628                            editor.focus_handle(cx).focus(cx);
 629                        })
 630                    }),
 631                )
 632                .when(can_delete_message, move |menu| {
 633                    menu.entry(
 634                        "Delete message",
 635                        None,
 636                        cx.handler_for(&this, move |this, cx| this.remove_message(message_id, cx)),
 637                    )
 638                })
 639            })
 640        };
 641        this.update(cx, |this, cx| {
 642            let subscription = cx.subscribe(&menu, |this: &mut Self, _, _: &DismissEvent, _| {
 643                this.open_context_menu = None;
 644            });
 645            this.open_context_menu = Some((message_id, subscription));
 646        });
 647        menu
 648    }
 649
 650    fn render_markdown_with_mentions(
 651        language_registry: &Arc<LanguageRegistry>,
 652        current_user_id: u64,
 653        message: &channel::ChannelMessage,
 654    ) -> RichText {
 655        let mentions = message
 656            .mentions
 657            .iter()
 658            .map(|(range, user_id)| rich_text::Mention {
 659                range: range.clone(),
 660                is_self_mention: *user_id == current_user_id,
 661            })
 662            .collect::<Vec<_>>();
 663
 664        rich_text::render_rich_text(message.body.clone(), &mentions, language_registry, None)
 665    }
 666
 667    fn send(&mut self, _: &Confirm, cx: &mut ViewContext<Self>) {
 668        if let Some((chat, _)) = self.active_chat.as_ref() {
 669            let message = self
 670                .message_editor
 671                .update(cx, |editor, cx| editor.take_message(cx));
 672
 673            if let Some(task) = chat
 674                .update(cx, |chat, cx| chat.send_message(message, cx))
 675                .log_err()
 676            {
 677                task.detach();
 678            }
 679        }
 680    }
 681
 682    fn remove_message(&mut self, id: u64, cx: &mut ViewContext<Self>) {
 683        if let Some((chat, _)) = self.active_chat.as_ref() {
 684            chat.update(cx, |chat, cx| chat.remove_message(id, cx).detach())
 685        }
 686    }
 687
 688    fn load_more_messages(&mut self, cx: &mut ViewContext<Self>) {
 689        if let Some((chat, _)) = self.active_chat.as_ref() {
 690            chat.update(cx, |channel, cx| {
 691                if let Some(task) = channel.load_more_messages(cx) {
 692                    task.detach();
 693                }
 694            })
 695        }
 696    }
 697
 698    pub fn select_channel(
 699        &mut self,
 700        selected_channel_id: u64,
 701        scroll_to_message_id: Option<u64>,
 702        cx: &mut ViewContext<ChatPanel>,
 703    ) -> Task<Result<()>> {
 704        let open_chat = self
 705            .active_chat
 706            .as_ref()
 707            .and_then(|(chat, _)| {
 708                (chat.read(cx).channel_id == selected_channel_id)
 709                    .then(|| Task::ready(anyhow::Ok(chat.clone())))
 710            })
 711            .unwrap_or_else(|| {
 712                self.channel_store.update(cx, |store, cx| {
 713                    store.open_channel_chat(selected_channel_id, cx)
 714                })
 715            });
 716
 717        cx.spawn(|this, mut cx| async move {
 718            let chat = open_chat.await?;
 719            let highlight_message_id = scroll_to_message_id;
 720            let scroll_to_message_id = this.update(&mut cx, |this, cx| {
 721                this.set_active_chat(chat.clone(), cx);
 722
 723                scroll_to_message_id.or_else(|| this.last_acknowledged_message_id)
 724            })?;
 725
 726            if let Some(message_id) = scroll_to_message_id {
 727                if let Some(item_ix) =
 728                    ChannelChat::load_history_since_message(chat.clone(), message_id, (*cx).clone())
 729                        .await
 730                {
 731                    this.update(&mut cx, |this, cx| {
 732                        if let Some(highlight_message_id) = highlight_message_id {
 733                            let task = cx.spawn({
 734                                |this, mut cx| async move {
 735                                    cx.background_executor().timer(Duration::from_secs(2)).await;
 736                                    this.update(&mut cx, |this, cx| {
 737                                        this.highlighted_message.take();
 738                                        cx.notify();
 739                                    })
 740                                    .ok();
 741                                }
 742                            });
 743
 744                            this.highlighted_message = Some((highlight_message_id, task));
 745                        }
 746
 747                        if this.active_chat.as_ref().map_or(false, |(c, _)| *c == chat) {
 748                            this.message_list.scroll_to(ListOffset {
 749                                item_ix,
 750                                offset_in_item: px(0.0),
 751                            });
 752                            cx.notify();
 753                        }
 754                    })?;
 755                }
 756            }
 757
 758            Ok(())
 759        })
 760    }
 761
 762    fn close_reply_preview(&mut self, _: &CloseReplyPreview, cx: &mut ViewContext<Self>) {
 763        self.message_editor
 764            .update(cx, |editor, _| editor.clear_reply_to_message_id());
 765    }
 766}
 767
 768impl Render for ChatPanel {
 769    fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
 770        let reply_to_message_id = self.message_editor.read(cx).reply_to_message_id();
 771
 772        v_flex()
 773            .key_context("ChatPanel")
 774            .track_focus(&self.focus_handle)
 775            .size_full()
 776            .on_action(cx.listener(Self::send))
 777            .child(
 778                h_flex().z_index(1).child(
 779                    TabBar::new("chat_header").child(
 780                        h_flex()
 781                            .w_full()
 782                            .h(rems(ui::Tab::CONTAINER_HEIGHT_IN_REMS))
 783                            .px_2()
 784                            .child(Label::new(
 785                                self.active_chat
 786                                    .as_ref()
 787                                    .and_then(|c| {
 788                                        Some(format!("#{}", c.0.read(cx).channel(cx)?.name))
 789                                    })
 790                                    .unwrap_or("Chat".to_string()),
 791                            )),
 792                    ),
 793                ),
 794            )
 795            .child(div().flex_grow().px_2().map(|this| {
 796                if self.active_chat.is_some() {
 797                    this.child(list(self.message_list.clone()).size_full())
 798                } else {
 799                    this.child(
 800                        div()
 801                            .size_full()
 802                            .p_4()
 803                            .child(
 804                                Label::new("Select a channel to chat in.")
 805                                    .size(LabelSize::Small)
 806                                    .color(Color::Muted),
 807                            )
 808                            .child(
 809                                div().pt_1().w_full().items_center().child(
 810                                    Button::new("toggle-collab", "Open")
 811                                        .full_width()
 812                                        .key_binding(KeyBinding::for_action(
 813                                            &collab_panel::ToggleFocus,
 814                                            cx,
 815                                        ))
 816                                        .on_click(|_, cx| {
 817                                            cx.dispatch_action(
 818                                                collab_panel::ToggleFocus.boxed_clone(),
 819                                            )
 820                                        }),
 821                                ),
 822                            ),
 823                    )
 824                }
 825            }))
 826            .when_some(reply_to_message_id, |el, reply_to_message_id| {
 827                let reply_message = self
 828                    .active_chat()
 829                    .map(|active_chat| {
 830                        active_chat.read(cx).messages().iter().find_map(|m| {
 831                            if m.id == ChannelMessageId::Saved(reply_to_message_id) {
 832                                Some(m)
 833                            } else {
 834                                None
 835                            }
 836                        })
 837                    })
 838                    .flatten()
 839                    .cloned();
 840
 841                el.when_some(reply_message, |el, reply_message| {
 842                    el.child(
 843                        h_flex()
 844                            .when(!self.is_scrolled_to_bottom, |el| {
 845                                el.border_t_1().border_color(cx.theme().colors().border)
 846                            })
 847                            .justify_between()
 848                            .overflow_hidden()
 849                            .items_start()
 850                            .py_1()
 851                            .px_2()
 852                            .bg(cx.theme().colors().background)
 853                            .child(
 854                                div().flex_shrink().overflow_hidden().child(
 855                                    self.render_replied_to_message(None, &reply_message, cx),
 856                                ),
 857                            )
 858                            .child(
 859                                IconButton::new("close-reply-preview", IconName::Close)
 860                                    .shape(ui::IconButtonShape::Square)
 861                                    .tooltip(|cx| {
 862                                        Tooltip::for_action(
 863                                            "Close reply preview",
 864                                            &CloseReplyPreview,
 865                                            cx,
 866                                        )
 867                                    })
 868                                    .on_click(cx.listener(move |_, _, cx| {
 869                                        cx.dispatch_action(CloseReplyPreview.boxed_clone())
 870                                    })),
 871                            ),
 872                    )
 873                })
 874            })
 875            .children(
 876                Some(
 877                    h_flex()
 878                        .key_context("MessageEditor")
 879                        .on_action(cx.listener(ChatPanel::close_reply_preview))
 880                        .when(
 881                            !self.is_scrolled_to_bottom && reply_to_message_id.is_none(),
 882                            |el| el.border_t_1().border_color(cx.theme().colors().border),
 883                        )
 884                        .p_2()
 885                        .map(|el| el.child(self.message_editor.clone())),
 886                )
 887                .filter(|_| self.active_chat.is_some()),
 888            )
 889            .into_any()
 890    }
 891}
 892
 893impl FocusableView for ChatPanel {
 894    fn focus_handle(&self, cx: &AppContext) -> gpui::FocusHandle {
 895        if self.active_chat.is_some() {
 896            self.message_editor.read(cx).focus_handle(cx)
 897        } else {
 898            self.focus_handle.clone()
 899        }
 900    }
 901}
 902
 903impl Panel for ChatPanel {
 904    fn position(&self, cx: &gpui::WindowContext) -> DockPosition {
 905        ChatPanelSettings::get_global(cx).dock
 906    }
 907
 908    fn position_is_valid(&self, position: DockPosition) -> bool {
 909        matches!(position, DockPosition::Left | DockPosition::Right)
 910    }
 911
 912    fn set_position(&mut self, position: DockPosition, cx: &mut ViewContext<Self>) {
 913        settings::update_settings_file::<ChatPanelSettings>(self.fs.clone(), cx, move |settings| {
 914            settings.dock = Some(position)
 915        });
 916    }
 917
 918    fn size(&self, cx: &gpui::WindowContext) -> Pixels {
 919        self.width
 920            .unwrap_or_else(|| ChatPanelSettings::get_global(cx).default_width)
 921    }
 922
 923    fn set_size(&mut self, size: Option<Pixels>, cx: &mut ViewContext<Self>) {
 924        self.width = size;
 925        self.serialize(cx);
 926        cx.notify();
 927    }
 928
 929    fn set_active(&mut self, active: bool, cx: &mut ViewContext<Self>) {
 930        self.active = active;
 931        if active {
 932            self.acknowledge_last_message(cx);
 933        }
 934    }
 935
 936    fn persistent_name() -> &'static str {
 937        "ChatPanel"
 938    }
 939
 940    fn icon(&self, cx: &WindowContext) -> Option<ui::IconName> {
 941        Some(ui::IconName::MessageBubbles).filter(|_| ChatPanelSettings::get_global(cx).button)
 942    }
 943
 944    fn icon_tooltip(&self, _cx: &WindowContext) -> Option<&'static str> {
 945        Some("Chat Panel")
 946    }
 947
 948    fn toggle_action(&self) -> Box<dyn gpui::Action> {
 949        Box::new(ToggleFocus)
 950    }
 951
 952    fn starts_open(&self, cx: &WindowContext) -> bool {
 953        ActiveCall::global(cx)
 954            .read(cx)
 955            .room()
 956            .is_some_and(|room| room.read(cx).contains_guests())
 957    }
 958}
 959
 960impl EventEmitter<PanelEvent> for ChatPanel {}
 961
 962fn is_12_hour_clock(locale: String) -> bool {
 963    [
 964        "es-MX", "es-CO", "es-SV", "es-NI",
 965        "es-HN", // Mexico, Colombia, El Salvador, Nicaragua, Honduras
 966        "en-US", "en-CA", "en-AU", "en-NZ", // U.S, Canada, Australia, New Zealand
 967        "ar-SA", "ar-EG", "ar-JO", // Saudi Arabia, Egypt, Jordan
 968        "en-IN", "hi-IN", // India, Hindu
 969        "en-PK", "ur-PK", // Pakistan, Urdu
 970        "en-PH", "fil-PH", // Philippines, Filipino
 971        "bn-BD", "ccp-BD", // Bangladesh, Chakma
 972        "en-IE", "ga-IE", // Ireland, Irish
 973        "en-MY", "ms-MY", // Malaysia, Malay
 974    ]
 975    .contains(&locale.as_str())
 976}
 977
 978fn format_timestamp(
 979    reference: OffsetDateTime,
 980    timestamp: OffsetDateTime,
 981    timezone: UtcOffset,
 982    locale: Option<String>,
 983) -> String {
 984    let locale = match locale {
 985        Some(locale) => locale,
 986        None => sys_locale::get_locale().unwrap_or_else(|| String::from("en-US")),
 987    };
 988    let timestamp_local = timestamp.to_offset(timezone);
 989    let timestamp_local_hour = timestamp_local.hour();
 990    let timestamp_local_minute = timestamp_local.minute();
 991
 992    let (hour, meridiem) = if is_12_hour_clock(locale) {
 993        let meridiem = if timestamp_local_hour >= 12 {
 994            "pm"
 995        } else {
 996            "am"
 997        };
 998
 999        let hour_12 = match timestamp_local_hour {
1000            0 => 12,                              // Midnight
1001            13..=23 => timestamp_local_hour - 12, // PM hours
1002            _ => timestamp_local_hour,            // AM hours
1003        };
1004
1005        (hour_12, Some(meridiem))
1006    } else {
1007        (timestamp_local_hour, None)
1008    };
1009
1010    let formatted_time = match meridiem {
1011        Some(meridiem) => format!("{:02}:{:02} {}", hour, timestamp_local_minute, meridiem),
1012        None => format!("{:02}:{:02}", hour, timestamp_local_minute),
1013    };
1014
1015    let reference_local = reference.to_offset(timezone);
1016    let reference_local_date = reference_local.date();
1017    let timestamp_local_date = timestamp_local.date();
1018
1019    if timestamp_local_date == reference_local_date {
1020        return formatted_time;
1021    }
1022
1023    if reference_local_date.previous_day() == Some(timestamp_local_date) {
1024        return format!("yesterday at {}", formatted_time);
1025    }
1026
1027    match meridiem {
1028        Some(_) => format!(
1029            "{:02}/{:02}/{}",
1030            timestamp_local_date.month() as u32,
1031            timestamp_local_date.day(),
1032            timestamp_local_date.year()
1033        ),
1034        None => format!(
1035            "{:02}/{:02}/{}",
1036            timestamp_local_date.day(),
1037            timestamp_local_date.month() as u32,
1038            timestamp_local_date.year()
1039        ),
1040    }
1041}
1042
1043#[cfg(test)]
1044mod tests {
1045    use super::*;
1046    use gpui::HighlightStyle;
1047    use pretty_assertions::assert_eq;
1048    use rich_text::Highlight;
1049    use time::{Date, OffsetDateTime, Time, UtcOffset};
1050    use util::test::marked_text_ranges;
1051
1052    #[gpui::test]
1053    fn test_render_markdown_with_mentions() {
1054        let language_registry = Arc::new(LanguageRegistry::test());
1055        let (body, ranges) = marked_text_ranges("*hi*, «@abc», let's **call** «@fgh»", false);
1056        let message = channel::ChannelMessage {
1057            id: ChannelMessageId::Saved(0),
1058            body,
1059            timestamp: OffsetDateTime::now_utc(),
1060            sender: Arc::new(client::User {
1061                github_login: "fgh".into(),
1062                avatar_uri: "avatar_fgh".into(),
1063                id: 103,
1064            }),
1065            nonce: 5,
1066            mentions: vec![(ranges[0].clone(), 101), (ranges[1].clone(), 102)],
1067            reply_to_message_id: None,
1068        };
1069
1070        let message = ChatPanel::render_markdown_with_mentions(&language_registry, 102, &message);
1071
1072        // Note that the "'" was replaced with ’ due to smart punctuation.
1073        let (body, ranges) = marked_text_ranges("«hi», «@abc», let’s «call» «@fgh»", false);
1074        assert_eq!(message.text, body);
1075        assert_eq!(
1076            message.highlights,
1077            vec![
1078                (
1079                    ranges[0].clone(),
1080                    HighlightStyle {
1081                        font_style: Some(gpui::FontStyle::Italic),
1082                        ..Default::default()
1083                    }
1084                    .into()
1085                ),
1086                (ranges[1].clone(), Highlight::Mention),
1087                (
1088                    ranges[2].clone(),
1089                    HighlightStyle {
1090                        font_weight: Some(gpui::FontWeight::BOLD),
1091                        ..Default::default()
1092                    }
1093                    .into()
1094                ),
1095                (ranges[3].clone(), Highlight::SelfMention)
1096            ]
1097        );
1098    }
1099
1100    #[gpui::test]
1101    fn test_render_markdown_with_auto_detect_links() {
1102        let language_registry = Arc::new(LanguageRegistry::test());
1103        let message = channel::ChannelMessage {
1104            id: ChannelMessageId::Saved(0),
1105            body: "Here is a link https://zed.dev to zeds website".to_string(),
1106            timestamp: OffsetDateTime::now_utc(),
1107            sender: Arc::new(client::User {
1108                github_login: "fgh".into(),
1109                avatar_uri: "avatar_fgh".into(),
1110                id: 103,
1111            }),
1112            nonce: 5,
1113            mentions: Vec::new(),
1114            reply_to_message_id: None,
1115        };
1116
1117        let message = ChatPanel::render_markdown_with_mentions(&language_registry, 102, &message);
1118
1119        // Note that the "'" was replaced with ’ due to smart punctuation.
1120        let (body, ranges) =
1121            marked_text_ranges("Here is a link «https://zed.dev» to zeds website", false);
1122        assert_eq!(message.text, body);
1123        assert_eq!(1, ranges.len());
1124        assert_eq!(
1125            message.highlights,
1126            vec![(
1127                ranges[0].clone(),
1128                HighlightStyle {
1129                    underline: Some(gpui::UnderlineStyle {
1130                        thickness: 1.0.into(),
1131                        ..Default::default()
1132                    }),
1133                    ..Default::default()
1134                }
1135                .into()
1136            ),]
1137        );
1138    }
1139
1140    #[gpui::test]
1141    fn test_render_markdown_with_auto_detect_links_and_additional_formatting() {
1142        let language_registry = Arc::new(LanguageRegistry::test());
1143        let message = channel::ChannelMessage {
1144            id: ChannelMessageId::Saved(0),
1145            body: "**Here is a link https://zed.dev to zeds website**".to_string(),
1146            timestamp: OffsetDateTime::now_utc(),
1147            sender: Arc::new(client::User {
1148                github_login: "fgh".into(),
1149                avatar_uri: "avatar_fgh".into(),
1150                id: 103,
1151            }),
1152            nonce: 5,
1153            mentions: Vec::new(),
1154            reply_to_message_id: None,
1155        };
1156
1157        let message = ChatPanel::render_markdown_with_mentions(&language_registry, 102, &message);
1158
1159        // Note that the "'" was replaced with ’ due to smart punctuation.
1160        let (body, ranges) = marked_text_ranges(
1161            "«Here is a link »«https://zed.dev»« to zeds website»",
1162            false,
1163        );
1164        assert_eq!(message.text, body);
1165        assert_eq!(3, ranges.len());
1166        assert_eq!(
1167            message.highlights,
1168            vec![
1169                (
1170                    ranges[0].clone(),
1171                    HighlightStyle {
1172                        font_weight: Some(gpui::FontWeight::BOLD),
1173                        ..Default::default()
1174                    }
1175                    .into()
1176                ),
1177                (
1178                    ranges[1].clone(),
1179                    HighlightStyle {
1180                        font_weight: Some(gpui::FontWeight::BOLD),
1181                        underline: Some(gpui::UnderlineStyle {
1182                            thickness: 1.0.into(),
1183                            ..Default::default()
1184                        }),
1185                        ..Default::default()
1186                    }
1187                    .into()
1188                ),
1189                (
1190                    ranges[2].clone(),
1191                    HighlightStyle {
1192                        font_weight: Some(gpui::FontWeight::BOLD),
1193                        ..Default::default()
1194                    }
1195                    .into()
1196                ),
1197            ]
1198        );
1199    }
1200
1201    #[test]
1202    fn test_format_locale() {
1203        let reference = create_offset_datetime(1990, 4, 12, 16, 45, 0);
1204        let timestamp = create_offset_datetime(1990, 4, 12, 15, 30, 0);
1205
1206        assert_eq!(
1207            format_timestamp(
1208                reference,
1209                timestamp,
1210                test_timezone(),
1211                Some(String::from("en-GB"))
1212            ),
1213            "15:30"
1214        );
1215    }
1216
1217    #[test]
1218    fn test_format_today() {
1219        let reference = create_offset_datetime(1990, 4, 12, 16, 45, 0);
1220        let timestamp = create_offset_datetime(1990, 4, 12, 15, 30, 0);
1221
1222        assert_eq!(
1223            format_timestamp(
1224                reference,
1225                timestamp,
1226                test_timezone(),
1227                Some(String::from("en-US"))
1228            ),
1229            "03:30 pm"
1230        );
1231    }
1232
1233    #[test]
1234    fn test_format_yesterday() {
1235        let reference = create_offset_datetime(1990, 4, 12, 10, 30, 0);
1236        let timestamp = create_offset_datetime(1990, 4, 11, 9, 0, 0);
1237
1238        assert_eq!(
1239            format_timestamp(
1240                reference,
1241                timestamp,
1242                test_timezone(),
1243                Some(String::from("en-US"))
1244            ),
1245            "yesterday at 09:00 am"
1246        );
1247    }
1248
1249    #[test]
1250    fn test_format_yesterday_less_than_24_hours_ago() {
1251        let reference = create_offset_datetime(1990, 4, 12, 19, 59, 0);
1252        let timestamp = create_offset_datetime(1990, 4, 11, 20, 0, 0);
1253
1254        assert_eq!(
1255            format_timestamp(
1256                reference,
1257                timestamp,
1258                test_timezone(),
1259                Some(String::from("en-US"))
1260            ),
1261            "yesterday at 08:00 pm"
1262        );
1263    }
1264
1265    #[test]
1266    fn test_format_yesterday_more_than_24_hours_ago() {
1267        let reference = create_offset_datetime(1990, 4, 12, 19, 59, 0);
1268        let timestamp = create_offset_datetime(1990, 4, 11, 18, 0, 0);
1269
1270        assert_eq!(
1271            format_timestamp(
1272                reference,
1273                timestamp,
1274                test_timezone(),
1275                Some(String::from("en-US"))
1276            ),
1277            "yesterday at 06:00 pm"
1278        );
1279    }
1280
1281    #[test]
1282    fn test_format_yesterday_over_midnight() {
1283        let reference = create_offset_datetime(1990, 4, 12, 0, 5, 0);
1284        let timestamp = create_offset_datetime(1990, 4, 11, 23, 55, 0);
1285
1286        assert_eq!(
1287            format_timestamp(
1288                reference,
1289                timestamp,
1290                test_timezone(),
1291                Some(String::from("en-US"))
1292            ),
1293            "yesterday at 11:55 pm"
1294        );
1295    }
1296
1297    #[test]
1298    fn test_format_yesterday_over_month() {
1299        let reference = create_offset_datetime(1990, 4, 2, 9, 0, 0);
1300        let timestamp = create_offset_datetime(1990, 4, 1, 20, 0, 0);
1301
1302        assert_eq!(
1303            format_timestamp(
1304                reference,
1305                timestamp,
1306                test_timezone(),
1307                Some(String::from("en-US"))
1308            ),
1309            "yesterday at 08:00 pm"
1310        );
1311    }
1312
1313    #[test]
1314    fn test_format_before_yesterday() {
1315        let reference = create_offset_datetime(1990, 4, 12, 10, 30, 0);
1316        let timestamp = create_offset_datetime(1990, 4, 10, 20, 20, 0);
1317
1318        assert_eq!(
1319            format_timestamp(
1320                reference,
1321                timestamp,
1322                test_timezone(),
1323                Some(String::from("en-US"))
1324            ),
1325            "04/10/1990"
1326        );
1327    }
1328
1329    fn test_timezone() -> UtcOffset {
1330        UtcOffset::from_hms(0, 0, 0).expect("Valid timezone offset")
1331    }
1332
1333    fn create_offset_datetime(
1334        year: i32,
1335        month: u8,
1336        day: u8,
1337        hour: u8,
1338        minute: u8,
1339        second: u8,
1340    ) -> OffsetDateTime {
1341        let date =
1342            Date::from_calendar_date(year, time::Month::try_from(month).unwrap(), day).unwrap();
1343        let time = Time::from_hms(hour, minute, second).unwrap();
1344        date.with_time(time).assume_utc() // Assume UTC for simplicity
1345    }
1346}