Merge pull request #91 from michel/tui/results-folder-column

feat(tui): folder column, paged long lists, and filters in every popup

README.md

@@ -99,12 +99,13 @@ Everything else is a one-shot command that runs headless.
 
 ### The TUI
 
-Results run across the top, with the whole width for long file names;
-Searches, Downloads and Info share the row underneath. `Tab`/`Shift-Tab` or
-`1`–`3` move the focus between panes, `z` zooms the focused pane to the whole
-window, and `w` hides it so the others widen (its number brings it back).
-Every list takes `↑`/`↓`, `Home`/`End`, `PgUp`/`PgDn` and the vim keys, and
-`h`/`l` or `←`/`→` scroll a long file name or query sideways, `0` and `$` to
+Results run across the top, each file name in a column of its own with the
+folder it came from beside it; Searches, Downloads and Info share the row
+underneath. `Tab`/`Shift-Tab` or `1`–`3` move the focus between panes, `z`
+zooms the focused pane to the whole window, `w` hides it so the others widen
+(its number brings it back), and `W` puts the whole layout back. Every list
+takes `↑`/`↓`, `Home`/`End`, `PgUp`/`PgDn` and the vim keys, and `h`/`l` or
+`←`/`→` scroll a long file name, folder or query sideways, `0` and `$` to
 either end. `PgUp`/`PgDn` scroll a chat log back through its history, and `?`
 shows every key for where you are.
 
@@ -572,7 +573,13 @@ unread counter. `c` opens the chat-rooms popup: a `/`-filterable room list
 busiest first, `Enter` to join, several rooms open at once as tabs
 (`Tab`/`Shift-Tab` to switch, `x` to leave, `l` back to the list), and `↑`/`↓`
 through the member list with `b` to browse someone or `m` to message them.
-Unread counts appear on the tabs and on the `c chat (n)` shortcut.
+`/` searches the open room's log and `u` its member list; the inbox takes `/`
+too. Unread counts appear on the tabs and on the `c chat (n)` shortcut.
+
+`b` browses a user's shared files as a tree: `←`/`→` close and open a folder,
+`J`/`K` jump between folders, `H`/`L` close or open every folder, `/` filters
+the whole tree by path, and `Enter` or `d` downloads a file or a folder's
+files (under a filter, only the ones it shows).
 
 ### Connectivity
 

soulseek-rs/src/models/app_state.rs

@@ -1,6 +1,6 @@
 use crate::models::{BrowseTabs, FileDisplayData, RoomsState, SettingsState};
 use chrono::{DateTime, Local};
-use ratatui::{layout::Rect, widgets::TableState};
+use ratatui::{layout::Rect, text::Line, widgets::TableState};
 use soulseek_rs::{DownloadStatus, types::Download};
 use std::sync::atomic::AtomicBool;
 use std::sync::{Arc, mpsc::Receiver, mpsc::Sender};
@@ -174,6 +174,46 @@ impl LogView {
     }
 }
 
+/// A log wrapped to a width, kept between frames.
+///
+/// Wrapping every line of a long log on every draw is what made a busy room
+/// lag. Lines only ever arrive at the end, so a draw wraps the new ones and
+/// starts over only when the width or `key` (what is being shown, a filter
+/// say) changes.
+#[derive(Debug, Clone, Default)]
+pub struct WrappedLog {
+    width: usize,
+    key: String,
+    /// How many source lines the rows cover.
+    wrapped: usize,
+    rows: Vec<Line<'static>>,
+}
+
+impl WrappedLog {
+    /// The rows for `lines`, `wrap` turning one line into its rows (none,
+    /// for a line a filter drops).
+    pub fn rows<T>(
+        &mut self,
+        width: usize,
+        key: &str,
+        lines: &[T],
+        wrap: impl Fn(&T) -> Vec<Line<'static>>,
+    ) -> &[Line<'static>] {
+        if width != self.width || key != self.key || lines.len() < self.wrapped
+        {
+            self.rows.clear();
+            self.wrapped = 0;
+            self.width = width;
+            self.key = key.to_string();
+        }
+        for line in &lines[self.wrapped..] {
+            self.rows.extend(wrap(line));
+        }
+        self.wrapped = lines.len();
+        &self.rows
+    }
+}
+
 /// What the shared command bar is currently capturing input for.
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum CommandBarMode {
@@ -254,6 +294,11 @@ pub struct AppState {
     /// Compose buffer for the active conversation.
     pub chat_input: String,
     pub chat_composing: bool,
+    /// The open conversation wrapped for drawing.
+    pub chat_wrapped: WrappedLog,
+    /// Narrows the open conversation to messages mentioning it.
+    pub chat_filter: String,
+    pub chat_filtering: bool,
     /// Where the conversation is being read.
     pub chat_view: LogView,
 
@@ -332,6 +377,9 @@ impl AppState {
             chat_peer: None,
             chat_input: String::new(),
             chat_composing: false,
+            chat_wrapped: WrappedLog::default(),
+            chat_filter: String::new(),
+            chat_filtering: false,
             chat_view: LogView::default(),
 
             browse: BrowseTabs::new(),
@@ -501,6 +549,27 @@ mod tests {
         layout.visible().collect()
     }
 
+    #[test]
+    fn a_wrapped_log_only_wraps_what_arrived_and_starts_over_on_a_change() {
+        let wrap = |line: &String| vec![Line::raw(line.clone())];
+        let mut log = WrappedLog::default();
+        let mut lines = vec!["a".to_string(), "b".to_string()];
+        assert_eq!(log.rows(40, "", &lines, wrap).len(), 2);
+        lines.push("c".to_string());
+        assert_eq!(log.rows(40, "", &lines, wrap).len(), 3);
+        // A narrower pane or another filter rebuilds; fewer lines do too.
+        let only_c = |line: &String| {
+            (line == "c")
+                .then(|| Line::raw(line.clone()))
+                .into_iter()
+                .collect()
+        };
+        assert_eq!(log.rows(40, "c", &lines, only_c).len(), 1);
+        assert_eq!(log.rows(30, "c", &lines, wrap).len(), 3);
+        lines.truncate(1);
+        assert_eq!(log.rows(30, "c", &lines, wrap).len(), 1);
+    }
+
     #[test]
     fn every_pane_starts_visible_and_unzoomed() {
         let state = AppState::new();

soulseek-rs/src/models/browse.rs

@@ -154,23 +154,20 @@ pub struct BrowseRow {
     pub size: Option<u64>,
 }
 
-/// Flatten the tree into visible rows, descending only into expanded folders.
-#[must_use]
-pub fn flatten_browse(
-    nodes: &[BrowseNode],
-    expanded: &HashSet<String>,
-) -> Vec<BrowseRow> {
-    let mut rows = Vec::new();
-    flatten_into(nodes, 0, expanded, &mut rows);
-    rows
-}
-
+/// Emit `nodes` as rows. Without a `needle`, every folder and file, a
+/// folder's contents only while it is open. With one, only the paths that
+/// contain it and the folders on the way there, open ones still deciding
+/// whether their contents show. `emit` false only counts. Says whether
+/// anything under `nodes` was kept.
 fn flatten_into(
     nodes: &[BrowseNode],
     depth: usize,
     expanded: &HashSet<String>,
+    needle: Option<&str>,
     rows: &mut Vec<BrowseRow>,
-) {
+    emit: bool,
+) -> bool {
+    let mut kept = false;
     for node in nodes {
         match node {
             BrowseNode::Folder {
@@ -178,20 +175,53 @@ fn flatten_into(
                 path,
                 children,
             } => {
-                let is_expanded = expanded.contains(path);
+                let open = expanded.contains(path);
+                let mark = rows.len();
+                if emit {
                     rows.push(BrowseRow {
                         depth,
                         is_folder: true,
-                    expanded: is_expanded,
+                        expanded: open,
                         name: name.clone(),
                         path: path.clone(),
                         size: None,
                     });
-                if is_expanded {
-                    flatten_into(children, depth + 1, expanded, rows);
+                }
+                let below = match needle {
+                    None => {
+                        if open {
+                            flatten_into(
+                                children,
+                                depth + 1,
+                                expanded,
+                                None,
+                                rows,
+                                emit,
+                            );
+                        }
+                        true
+                    }
+                    Some(needle) => {
+                        flatten_into(
+                            children,
+                            depth + 1,
+                            expanded,
+                            Some(needle),
+                            rows,
+                            emit && open,
+                        ) || path_has(path, needle)
+                    }
+                };
+                if below {
+                    kept = true;
+                } else {
+                    rows.truncate(mark);
                 }
             }
             BrowseNode::File { name, path, size } => {
+                if needle.is_none_or(|needle| path_has(path, needle)) {
+                    kept = true;
+                    if emit {
                         rows.push(BrowseRow {
                             depth,
                             is_folder: false,
@@ -204,10 +234,48 @@ fn flatten_into(
                 }
             }
         }
+    }
+    kept
+}
+
+/// Whether `path` contains `needle`, which is already ASCII-lowercase. Case
+/// is folded for ASCII only, without allocating: a filter keystroke runs
+/// this over every path in a share. A letter beyond ASCII matches as typed.
+fn path_has(path: &str, needle: &str) -> bool {
+    needle.is_empty()
+        || path
+            .as_bytes()
+            .windows(needle.len())
+            .any(|window| window.eq_ignore_ascii_case(needle.as_bytes()))
+}
+
+/// Open every folder with a path containing `needle` somewhere under it,
+/// so a filter shows all it matched. Says whether anything under `nodes`
+/// matched.
+fn open_matching(
+    nodes: &[BrowseNode],
+    needle: &str,
+    expanded: &mut HashSet<String>,
+) -> bool {
+    let mut any = false;
+    for node in nodes {
+        match node {
+            BrowseNode::Folder { path, children, .. } => {
+                if open_matching(children, needle, expanded)
+                    || path_has(path, needle)
+                {
+                    expanded.insert(path.clone());
+                    any = true;
+                }
+            }
+            BrowseNode::File { path, .. } => any |= path_has(path, needle),
+        }
+    }
+    any
+}
 
 /// Find a node by its full path.
-#[must_use]
-pub fn find_node<'a>(
+fn find_node<'a>(
     nodes: &'a [BrowseNode],
     path: &str,
 ) -> Option<&'a BrowseNode> {
@@ -235,8 +303,7 @@ pub fn find_node<'a>(
 
 /// All file leaves under `node` as `(full_path, size)`, descending the tree
 /// structurally (never string-prefix matching).
-#[must_use]
-pub fn files_under(node: &BrowseNode) -> Vec<(String, u64)> {
+fn files_under(node: &BrowseNode) -> Vec<(String, u64)> {
     let mut out = Vec::new();
     collect_files(node, &mut out);
     out
@@ -267,7 +334,17 @@ pub struct BrowseState {
     pub username: String,
     pub status: BrowseStatus,
     pub tree: Vec<BrowseNode>,
-    pub expanded: HashSet<String>,
+    expanded: HashSet<String>,
+    /// The tree flattened for the current expansion, kept between frames:
+    /// a heavy sharer's tree runs to tens of thousands of rows.
+    rows: Vec<BrowseRow>,
+    /// Narrows the rows to paths containing it, case-insensitively. Setting
+    /// it opens every folder with a match; clearing it puts the folders back
+    /// the way they were, kept in `kept_expanded` meanwhile.
+    filter: String,
+    kept_expanded: Option<HashSet<String>>,
+    /// Whether typing goes to the filter.
+    pub filtering: bool,
     pub selected_row: usize,
     pub file_count: usize,
     pub folder_count: usize,
@@ -282,6 +359,10 @@ impl BrowseState {
             status: BrowseStatus::Loading,
             tree: Vec::new(),
             expanded: HashSet::new(),
+            rows: Vec::new(),
+            filter: String::new(),
+            kept_expanded: None,
+            filtering: false,
             selected_row: 0,
             file_count: 0,
             folder_count: 0,
@@ -310,12 +391,105 @@ impl BrowseState {
         self.file_count = built.file_count;
         self.folder_count = built.folder_count;
         self.selected_row = 0;
+        self.refresh();
     }
 
     /// The flattened visible rows for the current expansion state.
     #[must_use]
-    pub fn rows(&self) -> Vec<BrowseRow> {
-        flatten_browse(&self.tree, &self.expanded)
+    pub fn rows(&self) -> &[BrowseRow] {
+        &self.rows
+    }
+
+    /// Open or close the folder at `path`.
+    pub fn set_expanded(&mut self, path: &str, expanded: bool) {
+        if expanded {
+            self.expanded.insert(path.to_string());
+        } else {
+            self.expanded.remove(path);
+        }
+        self.refresh();
+    }
+
+    pub fn expand_all(&mut self) {
+        folder_paths(&self.tree, &mut self.expanded);
+        self.refresh();
+    }
+
+    pub fn collapse_all(&mut self) {
+        self.expanded.clear();
+        self.refresh();
+    }
+
+    #[must_use]
+    pub fn filter(&self) -> &str {
+        &self.filter
+    }
+
+    /// Narrow the rows to `filter`, starting over from the top, with every
+    /// folder holding a match open. An emptied filter puts the folders back
+    /// as they were before it.
+    pub fn set_filter(&mut self, filter: String) {
+        if filter == self.filter {
+            return;
+        }
+        if filter.is_empty() {
+            if let Some(kept) = self.kept_expanded.take() {
+                self.expanded = kept;
+            }
+        } else {
+            if self.kept_expanded.is_none() {
+                self.kept_expanded = Some(self.expanded.clone());
+            }
+            self.expanded.clear();
+            open_matching(
+                &self.tree,
+                &filter.to_ascii_lowercase(),
+                &mut self.expanded,
+            );
+        }
+        self.filter = filter;
+        self.selected_row = 0;
+        self.refresh();
+    }
+
+    /// The files under the folder at `path`, only those the filter lets
+    /// through: what `d` on a filtered folder downloads is what it shows.
+    #[must_use]
+    pub fn folder_files(&self, path: &str) -> Vec<(String, u64)> {
+        let needle = self.filter.to_ascii_lowercase();
+        find_node(&self.tree, path)
+            .map(files_under)
+            .unwrap_or_default()
+            .into_iter()
+            .filter(|(path, _)| path_has(path, &needle))
+            .collect()
+    }
+
+    /// Re-flatten after the tree, the expansion or the filter changed under
+    /// `rows`.
+    fn refresh(&mut self) {
+        let needle =
+            (!self.filter.is_empty()).then(|| self.filter.to_ascii_lowercase());
+        self.rows.clear();
+        flatten_into(
+            &self.tree,
+            0,
+            &self.expanded,
+            needle.as_deref(),
+            &mut self.rows,
+            true,
+        );
+        self.selected_row =
+            self.selected_row.min(self.rows.len().saturating_sub(1));
+    }
+}
+
+fn folder_paths(nodes: &[BrowseNode], out: &mut HashSet<String>) {
+    for node in nodes {
+        if let BrowseNode::Folder { path, children, .. } = node {
+            out.insert(path.clone());
+            folder_paths(children, out);
+        }
     }
 }
 
@@ -413,6 +587,16 @@ impl BrowseTabs {
 mod tests {
     use super::*;
 
+    /// The tree flattened for `expanded`, unfiltered.
+    fn flatten_browse(
+        nodes: &[BrowseNode],
+        expanded: &HashSet<String>,
+    ) -> Vec<BrowseRow> {
+        let mut rows = Vec::new();
+        flatten_into(nodes, 0, expanded, None, &mut rows, true);
+        rows
+    }
+
     fn dir(name: &str, files: &[(&str, u64)]) -> SharedDirectory {
         SharedDirectory {
             name: name.to_string(),
@@ -579,6 +763,48 @@ mod tests {
         assert_eq!(tabs.retry_active(), None);
     }
 
+    #[test]
+    fn expanding_and_collapsing_refresh_the_rows_and_keep_the_selection() {
+        let mut state = BrowseState::loading("bob".to_string());
+        state.load(&[dir("music\\album", &[("a.mp3", 1), ("b.mp3", 2)])]);
+        assert_eq!(state.rows().len(), 2, "music open, album closed");
+        state.set_expanded("music\\album", true);
+        assert_eq!(state.rows().len(), 4);
+        state.selected_row = 3;
+        state.set_expanded("music\\album", false);
+        assert_eq!(state.rows().len(), 2);
+        assert_eq!(state.selected_row, 1, "pulled back onto the last row");
+    }
+
+    #[test]
+    fn a_filter_opens_every_folder_with_a_match_and_folds_still_work() {
+        let mut state = BrowseState::loading("bob".to_string());
+        state.load(&[
+            dir("music\\alpha", &[("a1.mp3", 1), ("a2.flac", 2)]),
+            dir("music\\beta", &[("b1.mp3", 3)]),
+        ]);
+        let names = |state: &BrowseState| -> Vec<String> {
+            state.rows().iter().map(|row| row.name.clone()).collect()
+        };
+        state.set_filter("beta".to_string());
+        assert_eq!(names(&state), ["music", "beta", "b1.mp3"]);
+        state.set_filter("FLAC".to_string());
+        assert_eq!(names(&state), ["music", "alpha", "a2.flac"], "any case");
+        assert_eq!(
+            state.folder_files("music"),
+            [("music\\alpha\\a2.flac".to_string(), 2)],
+            "a folder downloads what it shows"
+        );
+        state.set_expanded("music\\alpha", false);
+        assert_eq!(names(&state), ["music", "alpha"], "folded under a filter");
+        state.set_filter(String::new());
+        assert_eq!(state.rows().len(), 3, "the folders as they were before");
+        state.expand_all();
+        assert_eq!(state.rows().len(), 6);
+        state.collapse_all();
+        assert_eq!(state.rows().len(), 1);
+    }
+
     #[test]
     fn browse_state_load_auto_expands_top_level() {
         let mut state = BrowseState::loading("bob".to_string());

soulseek-rs/src/models/mod.rs

@@ -6,11 +6,12 @@ mod settings;
 
 pub use app_state::{
     AppState, ChatMessage, CommandBarMode, DownloadEntry, FocusedPane, LogView,
-    MessageDirection, PaneLayout, SearchEntry, SearchStatus,
-};
-pub use browse::{
-    BrowseState, BrowseStatus, BrowseTabs, files_under, find_node,
+    MessageDirection, PaneLayout, SearchEntry, SearchStatus, WrappedLog,
 };
+pub use browse::{BrowseState, BrowseStatus, BrowseTabs};
 pub use file_display_data::FileDisplayData;
-pub use rooms::{RoomLine, RoomsState, RoomsView};
+pub use rooms::{
+    ChatFilter, OpenRoom, RoomLine, RoomsState, RoomsView, contains_filter,
+    matching_users,
+};
 pub use settings::{SettingsAction, SettingsMode, SettingsState};

soulseek-rs/src/models/rooms.rs

@@ -1,4 +1,4 @@
-use crate::models::LogView;
+use crate::models::{LogView, WrappedLog};
 use chrono::{DateTime, Local};
 use soulseek_rs::types::{RoomEvent, RoomInfo};
 
@@ -41,6 +41,8 @@ pub struct OpenRoom {
     pub input: String,
     /// Where the log is being read.
     pub view: LogView,
+    /// The log wrapped for drawing.
+    pub wrapped: WrappedLog,
 }
 
 impl OpenRoom {
@@ -77,8 +79,22 @@ pub struct RoomsState {
     pub view: RoomsView,
     /// Whether the compose input for the active room is capturing keys.
     pub composing: bool,
-    /// Selected index into the active room's member list (for browse/PM).
+    /// Selected index into the active room's member list (for browse/PM),
+    /// as narrowed by `user_filter`.
     pub user_selected: usize,
+    /// Narrows the active room's log to lines mentioning it.
+    pub log_filter: String,
+    /// Narrows the active room's member list to names containing it.
+    pub user_filter: String,
+    /// Which of the two, if either, typing goes to.
+    pub filtering: Option<ChatFilter>,
+}
+
+/// A room's two filterable lists.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum ChatFilter {
+    Log,
+    Users,
 }
 
 impl Default for RoomsState {
@@ -100,6 +116,31 @@ impl RoomsState {
             view: RoomsView::List,
             composing: false,
             user_selected: 0,
+            log_filter: String::new(),
+            user_filter: String::new(),
+            filtering: None,
+        }
+    }
+
+    /// The active room's members the filter lets through.
+    #[must_use]
+    pub fn visible_users(&self) -> Vec<&str> {
+        self.active_room().map_or_else(Vec::new, |room| {
+            matching_users(&room.users, &self.user_filter)
+        })
+    }
+
+    /// Narrow the member list, starting over from its top.
+    pub fn set_user_filter(&mut self, filter: String) {
+        self.user_filter = filter;
+        self.user_selected = 0;
+    }
+
+    /// Narrow the log, back at its newest matching line.
+    pub fn set_log_filter(&mut self, filter: String) {
+        self.log_filter = filter;
+        if let Some(view) = self.active_view_mut() {
+            view.to_newest();
         }
     }
 
@@ -159,8 +200,9 @@ impl RoomsState {
     /// The username highlighted in the active room's member list, if any.
     #[must_use]
     pub fn selected_user(&self) -> Option<String> {
-        self.active_room()
-            .and_then(|r| r.users.get(self.user_selected).cloned())
+        self.visible_users()
+            .get(self.user_selected)
+            .map(|user| (*user).to_string())
     }
 
     /// Where the active room's log is being read, to move it.
@@ -173,11 +215,9 @@ impl RoomsState {
     }
 
     pub fn select_user_down(&mut self) {
-        if let Some(room) = self.active_room()
-            && !room.users.is_empty()
-        {
-            self.user_selected =
-                (self.user_selected + 1).min(room.users.len() - 1);
+        let len = self.visible_users().len();
+        if len > 0 {
+            self.user_selected = (self.user_selected + 1).min(len - 1);
         }
     }
 
@@ -305,7 +345,7 @@ impl RoomsState {
 
     /// Keep `user_selected` within the active room's member list.
     fn clamp_user_selected(&mut self) {
-        let len = self.active_room().map_or(0, |r| r.users.len());
+        let len = self.visible_users().len();
         self.user_selected = self.user_selected.min(len.saturating_sub(1));
     }
 
@@ -320,6 +360,25 @@ impl RoomsState {
     }
 }
 
+/// Whether `text` contains `filter`, ignoring case; an empty filter matches.
+#[must_use]
+pub fn contains_filter(text: &str, filter: &str) -> bool {
+    filter.is_empty() || text.to_lowercase().contains(&filter.to_lowercase())
+}
+
+/// The names in `users` that contain `filter`, in their own order.
+#[must_use]
+pub fn matching_users<'a>(users: &'a [String], filter: &str) -> Vec<&'a str> {
+    let needle = filter.to_lowercase();
+    users
+        .iter()
+        .filter(|user| {
+            needle.is_empty() || user.to_lowercase().contains(&needle)
+        })
+        .map(String::as_str)
+        .collect()
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

soulseek-rs/src/ui/main_tui/browse.rs

@@ -1,6 +1,6 @@
 use super::MainTui;
-use super::input::{jumped, list_jump};
-use crate::models::{BrowseStatus, files_under, find_node};
+use super::input::{FilterEdit, edit_filter, jumped, list_jump};
+use crate::models::BrowseStatus;
 use ratatui::crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
 use std::{thread, time::Duration};
 
@@ -9,11 +9,27 @@ const BROWSE_TIMEOUT: Duration = Duration::from_secs(20);
 
 impl MainTui {
     pub(super) fn handle_browse_input(&mut self, key: KeyEvent) {
+        // Typing goes to the filter; the other keys still move around.
+        if self.state.browse.active_tab().is_some_and(|b| b.filtering)
+            && self.handle_browse_filter_input(key)
+        {
+            return;
+        }
+        // Esc peels back one level: a filter first, then the popup.
+        if key.code == KeyCode::Esc
+            && let Some(browse) = self.state.browse.active_tab_mut()
+            && !browse.filter().is_empty()
+        {
+            browse.set_filter(String::new());
+            return;
+        }
         if matches!(key.code, KeyCode::Esc | KeyCode::Char('q')) {
             self.state.show_browse = false;
             return;
         }
-        let jump = list_jump(key, self.popup_page());
+        // The tab bar takes a row once more than one user is open.
+        let chrome = u16::from(self.state.browse.tabs.len() > 1);
+        let jump = list_jump(key, self.popup_page(chrome));
         // Control combinations are only ever jumps: ctrl-d pages, d downloads.
         if jump.is_none() && key.modifiers.contains(KeyModifiers::CONTROL) {
             return;
@@ -48,8 +64,8 @@ impl MainTui {
             _ => {}
         }
 
-        // Snapshot the flattened rows + current selection, then drop the borrow.
-        let (rows, sel, row) = {
+        // The highlighted row and where it sits, then drop the borrow.
+        let (len, sel, row) = {
             let Some(browse) = self.state.browse.active_tab() else {
                 self.state.show_browse = false;
                 return;
@@ -62,13 +78,12 @@ impl MainTui {
                 return;
             }
             let sel = browse.selected_row.min(rows.len() - 1);
-            let row = rows[sel].clone();
-            (rows, sel, row)
+            (rows.len(), sel, rows[sel].clone())
         };
 
         if let Some(jump) = jump {
             if let Some(browse) = self.state.browse.active_tab_mut() {
-                browse.selected_row = jumped(sel, rows.len(), jump);
+                browse.selected_row = jumped(sel, len, jump);
             }
             self.sync_browse_selection();
             return;
@@ -85,7 +100,11 @@ impl MainTui {
             }
             KeyCode::Char('d') => {
                 let files = if row.is_folder {
-                    self.browse_folder_files(&row.path)
+                    self.state
+                        .browse
+                        .active_tab()
+                        .map(|b| b.folder_files(&row.path))
+                        .unwrap_or_default()
                 } else {
                     vec![(row.path.clone(), row.size.unwrap_or(0))]
                 };
@@ -102,59 +121,76 @@ impl MainTui {
                     browse.selected_row = sel.saturating_sub(1);
                 }
                 KeyCode::Down | KeyCode::Char('j') => {
-                    browse.selected_row = (sel + 1).min(rows.len() - 1);
+                    browse.selected_row = (sel + 1).min(len - 1);
                 }
+                // The folder-sized steps: the next or previous folder row.
+                KeyCode::Char('J') => {
+                    if let Some(next) =
+                        (sel + 1..len).find(|&i| browse.rows()[i].is_folder)
+                    {
+                        browse.selected_row = next;
+                    }
+                }
+                KeyCode::Char('K') => {
+                    if let Some(previous) =
+                        (0..sel).rev().find(|&i| browse.rows()[i].is_folder)
+                    {
+                        browse.selected_row = previous;
+                    }
+                }
+                KeyCode::Char('H') => browse.collapse_all(),
+                KeyCode::Char('L') => browse.expand_all(),
+                KeyCode::Char('/') => browse.filtering = true,
                 KeyCode::Right | KeyCode::Char('l') => {
                     if row.is_folder && !row.expanded {
-                        browse.expanded.insert(row.path.clone());
+                        browse.set_expanded(&row.path, true);
                     } else if row.is_folder {
-                        browse.selected_row = (sel + 1).min(rows.len() - 1);
+                        browse.selected_row = (sel + 1).min(len - 1);
                     }
                 }
                 KeyCode::Left | KeyCode::Char('h') => {
                     if row.is_folder && row.expanded {
-                        browse.expanded.remove(&row.path);
-                    } else if let Some(parent) =
-                        (0..sel).rev().find(|&i| rows[i].depth < row.depth)
+                        browse.set_expanded(&row.path, false);
+                    } else if let Some(parent) = (0..sel)
+                        .rev()
+                        .find(|&i| browse.rows()[i].depth < row.depth)
                     {
                         browse.selected_row = parent;
                     }
                 }
                 KeyCode::Enter => {
                     // Folder toggle (files handled above).
-                    if row.expanded {
-                        browse.expanded.remove(&row.path);
-                    } else {
-                        browse.expanded.insert(row.path.clone());
-                    }
+                    browse.set_expanded(&row.path, !row.expanded);
                 }
                 _ => {}
             }
-            // Re-clamp against the new flattened length.
-            let new_len = browse.rows().len();
-            browse.selected_row =
-                browse.selected_row.min(new_len.saturating_sub(1));
         }
 
         self.sync_browse_selection();
     }
 
+    /// The keys that edit the filter while it is being typed. Says whether
+    /// `key` was one of them; the rest move around the narrowed rows.
+    fn handle_browse_filter_input(&mut self, key: KeyEvent) -> bool {
+        let Some(browse) = self.state.browse.active_tab_mut() else {
+            return false;
+        };
+        let mut filter = browse.filter().to_string();
+        let Some(edit) = edit_filter(&mut filter, key) else {
+            return false;
+        };
+        browse.filtering = edit == FilterEdit::Changed;
+        browse.set_filter(filter);
+        self.sync_browse_selection();
+        true
+    }
+
     /// Point the browse table cursor at the active tab's selected row.
     fn sync_browse_selection(&mut self) {
         let selected = self.state.browse.active_tab().map(|b| b.selected_row);
         self.state.browse_table_state.select(selected);
     }
 
-    /// Files (`path`, `size`) under the active browse tab's folder at `path`.
-    fn browse_folder_files(&self, path: &str) -> Vec<(String, u64)> {
-        self.state
-            .browse
-            .active_tab()
-            .and_then(|b| find_node(&b.tree, path))
-            .map(files_under)
-            .unwrap_or_default()
-    }
-
     /// Queue downloads of `files` (path, size) from the active browse tab's user.
     fn queue_browse_files(&mut self, files: Vec<(String, u64)>) {
         let Some(username) =

soulseek-rs/src/ui/main_tui/input.rs

@@ -1,6 +1,6 @@
 use super::MainTui;
-use crate::models::{CommandBarMode, FocusedPane, LogView};
-use crate::ui::pane_block;
+use crate::models::{CommandBarMode, FocusedPane, LogView, PaneLayout};
+use crate::ui::page_of;
 use crate::ui::panes::{
     InfoSubject, name_end_offset, query_end_offset, selected_transfer,
     transfer_name_end_offset, upload_display_name,
@@ -8,7 +8,7 @@ use crate::ui::panes::{
 use ratatui::crossterm::event::{
     KeyCode, KeyEvent, KeyModifiers, MouseButton, MouseEvent, MouseEventKind,
 };
-use ratatui::layout::{Position, Rect};
+use ratatui::layout::Position;
 use ratatui::widgets::TableState;
 
 const NAME_SCROLL_STEP: isize = 8;
@@ -100,6 +100,10 @@ impl MainTui {
                 self.state.hide_focused_pane();
                 return;
             }
+            KeyCode::Char('W') => {
+                self.state.layout = PaneLayout::default();
+                return;
+            }
             KeyCode::Esc if self.state.layout.zoomed => {
                 self.state.layout.zoomed = false;
                 return;
@@ -186,6 +190,20 @@ impl MainTui {
             return;
         }
 
+        // Typing a filter captures the keys that edit it; the rest still
+        // move around.
+        if self.state.chat_filtering
+            && let Some(edit) = edit_filter(&mut self.state.chat_filter, key)
+        {
+            if edit != FilterEdit::Changed {
+                self.state.chat_filtering = false;
+            }
+            if edit != FilterEdit::Kept {
+                self.state.chat_view.to_newest();
+            }
+            return;
+        }
+
         // Paging keys move through the conversation's history.
         if scroll_log(&mut self.state.chat_view, key) {
             return;
@@ -195,9 +213,15 @@ impl MainTui {
         }
 
         match key.code {
+            // Esc peels back one level: a filter first, then the popup.
+            KeyCode::Esc if !self.state.chat_filter.is_empty() => {
+                self.state.chat_filter.clear();
+                self.state.chat_view.to_newest();
+            }
             KeyCode::Char('i' | 'q') | KeyCode::Esc => {
                 self.state.show_messages = false;
             }
+            KeyCode::Char('/') => self.state.chat_filtering = true,
             // Move through the conversation list on the right.
             KeyCode::Tab | KeyCode::Down | KeyCode::Char('j') => {
                 self.state.cycle_chat_peer(true);
@@ -326,31 +350,17 @@ impl MainTui {
     }
 
     fn handle_filter_input(&mut self, key: KeyEvent) {
-        match key.code {
-            KeyCode::Esc => {
-                self.state.results_is_filtering = false;
-                self.state.results_filter_query.clear();
-                self.state.results_filtered_items =
-                    self.state.results_items.clone();
-                self.state.results_filtered_indices =
-                    (0..self.state.results_items.len()).collect();
-            }
-            KeyCode::Char(c) => {
-                self.state.results_filter_query.push(c);
+        let Some(edit) = edit_filter(&mut self.state.results_filter_query, key)
+        else {
+            return self.handle_results_input(key);
+        };
+        // A kept query stays: the normal Results keys act on the filtered
+        // list. An empty one shows everything without a rebuild.
+        if edit == FilterEdit::Changed {
             self.apply_filter();
-            }
-            KeyCode::Backspace => {
-                self.state.results_filter_query.pop();
-                self.apply_filter();
-            }
-            // Confirm the filter: leave typing mode but keep the query, so
-            // the normal Results keys (j/k, space, enter) act on the
-            // filtered list.
-            KeyCode::Enter => {
+        } else {
             self.state.results_is_filtering = false;
         }
-            _ => self.handle_results_input(key),
-        }
     }
 
     /// The list the focus is on and how far one page moves it.
@@ -374,10 +384,10 @@ impl MainTui {
         navigate_list(key, table, len, page)
     }
 
-    /// Rows a popup shows at once: its inner height less a tab bar and a
-    /// compose line, which is what its list or log has left.
-    pub(super) fn popup_page(&self) -> usize {
-        page_of(self.state.popup_area, 2)
+    /// Rows a popup's list shows at once: its inner height less the `chrome`
+    /// rows above the list, a tab bar or a header.
+    pub(super) fn popup_page(&self, chrome: u16) -> usize {
+        page_of(self.state.popup_area, chrome)
     }
 
     /// Rows the focused pane shows at once: its inner height less the table
@@ -440,10 +450,7 @@ impl MainTui {
                     self.state.results_selected_indices.insert(index);
                 }
             }
-            KeyCode::Char('/') => {
-                self.state.results_is_filtering = true;
-                self.state.results_filter_query.clear();
-            }
+            KeyCode::Char('/') => self.state.results_is_filtering = true,
             KeyCode::Char('a') => {
                 let indices: Vec<usize> =
                     if self.state.results_filter_query.is_empty() {
@@ -575,14 +582,41 @@ impl MainTui {
     }
 }
 
-/// Rows a list in `area` shows at once, less the `chrome` rows above it: a
-/// table header, a popup's tab bar and compose line. At least one, so a page
-/// key always moves, even before the first draw.
-fn page_of(area: Option<Rect>, chrome: u16) -> usize {
-    area.map_or(0, |area| {
-        usize::from(pane_block(false).inner(area).height.saturating_sub(chrome))
-    })
-    .max(1)
+/// What a key did to a filter being typed.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub(super) enum FilterEdit {
+    Changed,
+    Kept,
+    Cleared,
+}
+
+/// Apply `key` to `filter` the way every typed filter takes it: characters
+/// and Backspace edit it, Enter keeps it, Esc clears it. A control or alt
+/// chord is not typing. `None` when the key was none of those.
+pub(super) fn edit_filter(
+    filter: &mut String,
+    key: KeyEvent,
+) -> Option<FilterEdit> {
+    match key.code {
+        KeyCode::Esc => {
+            filter.clear();
+            Some(FilterEdit::Cleared)
+        }
+        KeyCode::Enter => Some(FilterEdit::Kept),
+        KeyCode::Backspace => {
+            filter.pop();
+            Some(FilterEdit::Changed)
+        }
+        KeyCode::Char(c)
+            if !key
+                .modifiers
+                .intersects(KeyModifiers::CONTROL | KeyModifiers::ALT) =>
+        {
+            filter.push(c);
+            Some(FilterEdit::Changed)
+        }
+        _ => None,
+    }
 }
 
 /// A move over a whole list at once: to either end, or by a number of rows

soulseek-rs/src/ui/main_tui/mod.rs

@@ -265,7 +265,9 @@ pub fn launch_main_tui(
 mod tests {
     use super::*;
     use crate::daemon::proto::ChatMessageDto;
-    use crate::models::{FocusedPane, MessageDirection, SearchStatus};
+    use crate::models::{
+        FocusedPane, MessageDirection, RoomsView, SearchStatus,
+    };
     use ratatui::crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
 
     /// A stand-in for a daemon: it already holds a conversation, a transfer
@@ -1158,8 +1160,9 @@ mod tests {
         let mut tui = with_session(TalkativeSession::default());
         tui.state.results_items = results(n);
         tui.state.focused_pane = FocusedPane::Results;
+        // 88 cells wide gives the name column 11 cells and the folder 7.
         tui.state.results_pane_area =
-            Some(ratatui::layout::Rect::new(0, 0, 80, 13));
+            Some(ratatui::layout::Rect::new(0, 0, 88, 13));
         tui
     }
 
@@ -1675,6 +1678,147 @@ mod tests {
         assert!(tui.state.show_browse, "still open");
     }
 
+    #[test]
+    fn folder_keys_and_the_filter_move_through_a_browsed_tree() {
+        let mut tui = attach(Arc::new(TalkativeSession::default()));
+        tui.state.browse.open("bob");
+        let listing = vec![
+            soulseek_rs::SharedDirectory {
+                name: "music\\alpha".to_string(),
+                files: vec![
+                    soulseek_rs::SharedFileEntry {
+                        name: "a1.mp3".to_string(),
+                        size: 1,
+                        attributes: Vec::new(),
+                    },
+                    soulseek_rs::SharedFileEntry {
+                        name: "a2.flac".to_string(),
+                        size: 2,
+                        attributes: Vec::new(),
+                    },
+                ],
+            },
+            soulseek_rs::SharedDirectory {
+                name: "music\\beta".to_string(),
+                files: vec![soulseek_rs::SharedFileEntry {
+                    name: "b1.mp3".to_string(),
+                    size: 3,
+                    attributes: Vec::new(),
+                }],
+            },
+        ];
+        tui.state
+            .browse
+            .active_tab_mut()
+            .expect("tab")
+            .load(&listing);
+        tui.state.show_browse = true;
+        let _ = screen_of(&mut tui);
+        let selected = |tui: &MainTui| {
+            tui.state.browse.active_tab().expect("tab").selected_row
+        };
+        let rows = |tui: &MainTui| {
+            tui.state.browse.active_tab().expect("tab").rows().len()
+        };
+
+        press(&mut tui, KeyCode::Char('L'));
+        assert_eq!(rows(&tui), 6, "every folder open");
+        press(&mut tui, KeyCode::Char('J'));
+        press(&mut tui, KeyCode::Char('J'));
+        assert_eq!(selected(&tui), 4, "beta, skipping alpha's files");
+        press(&mut tui, KeyCode::Char('K'));
+        assert_eq!(selected(&tui), 1, "back to alpha");
+        press(&mut tui, KeyCode::Char('H'));
+        assert_eq!(rows(&tui), 1, "just music");
+
+        press(&mut tui, KeyCode::Char('/'));
+        for c in "flac".chars() {
+            press(&mut tui, KeyCode::Char(c));
+        }
+        assert_eq!(rows(&tui), 3, "music, alpha, a2.flac");
+        let screen = screen_of(&mut tui);
+        assert!(screen.contains("filter: flac_"), "{screen}");
+        ctrl(&mut tui, 'd');
+        assert_eq!(
+            tui.state.browse.active_tab().expect("tab").filter(),
+            "flac",
+            "a control chord pages, it does not type"
+        );
+        press(&mut tui, KeyCode::Enter);
+        press(&mut tui, KeyCode::Char('j'));
+        press(&mut tui, KeyCode::Char('j'));
+        assert_eq!(selected(&tui), 2, "j moves again once the filter is kept");
+        press(&mut tui, KeyCode::Esc);
+        assert_eq!(rows(&tui), 1, "Esc clears the filter first");
+        assert!(tui.state.show_browse);
+        press(&mut tui, KeyCode::Esc);
+        assert!(!tui.state.show_browse, "then hides the popup");
+    }
+
+    #[test]
+    fn slash_and_u_filter_a_rooms_log_and_its_members() {
+        let mut tui = attach(Arc::new(TalkativeSession::default()));
+        in_a_room(&mut tui, 30);
+        press(&mut tui, KeyCode::Char('u'));
+        for c in "user2".chars() {
+            press(&mut tui, KeyCode::Char(c));
+        }
+        press(&mut tui, KeyCode::Enter);
+        press(&mut tui, KeyCode::Char('j'));
+        assert_eq!(
+            tui.state.rooms.selected_user().as_deref(),
+            Some("user21"),
+            "j moves within the matching members"
+        );
+        let screen = screen_of(&mut tui);
+        assert!(screen.contains("Users 10/30"), "{screen}");
+
+        press(&mut tui, KeyCode::Char('/'));
+        for c in "line 01".chars() {
+            press(&mut tui, KeyCode::Char(c));
+        }
+        let screen = screen_of(&mut tui);
+        assert!(screen.contains("line 010"), "{screen}");
+        assert!(!screen.contains("line 029"), "{screen}");
+        assert!(screen.contains("filter: line 01_"), "{screen}");
+        ctrl(&mut tui, 'u');
+        assert_eq!(tui.state.rooms.log_filter, "line 01", "^u scrolls");
+        press(&mut tui, KeyCode::Enter);
+        press(&mut tui, KeyCode::Esc);
+        assert!(tui.state.rooms.log_filter.is_empty());
+        assert!(tui.state.rooms.user_filter.is_empty());
+        assert_eq!(tui.state.rooms.view, RoomsView::Chat, "still in the room");
+        press(&mut tui, KeyCode::Esc);
+        assert_eq!(tui.state.rooms.view, RoomsView::List, "then the list");
+    }
+
+    #[test]
+    fn slash_filters_the_open_conversation() {
+        let mut tui = attach(Arc::new(TalkativeSession::default()));
+        for text in ["hello there", "see you", "hello again"] {
+            tui.state.messages.push(crate::models::ChatMessage {
+                direction: MessageDirection::Incoming,
+                peer: "bob".to_string(),
+                text: text.to_string(),
+                at: chrono::Local::now(),
+            });
+        }
+        tui.state.chat_peer = Some("bob".to_string());
+        tui.state.show_messages = true;
+        press(&mut tui, KeyCode::Char('/'));
+        for c in "hello".chars() {
+            press(&mut tui, KeyCode::Char(c));
+        }
+        let screen = screen_of(&mut tui);
+        assert!(screen.contains("hello again"), "{screen}");
+        assert!(!screen.contains("see you"), "{screen}");
+        press(&mut tui, KeyCode::Enter);
+        press(&mut tui, KeyCode::Esc);
+        assert!(tui.state.chat_filter.is_empty() && tui.state.show_messages);
+        press(&mut tui, KeyCode::Esc);
+        assert!(!tui.state.show_messages);
+    }
+
     fn in_a_room(tui: &mut MainTui, messages: usize) {
         tui.state.rooms.apply_event(
             soulseek_rs::RoomEvent::Joined {
@@ -1809,6 +1953,34 @@ mod tests {
         assert_eq!(bar_rows, 1, "{wide}");
     }
 
+    #[test]
+    fn the_searches_pane_lists_its_clear_all_key() {
+        let mut tui = furnished_tui();
+        tui.state.focused_pane = FocusedPane::Searches;
+        let screen = screen_sized(&mut tui, 300, 40);
+        assert!(screen.contains("[C → clear all]"), "{screen}");
+    }
+
+    #[test]
+    fn shift_w_brings_every_pane_back_and_leaves_zoom() {
+        let mut tui = furnished_tui();
+        tui.state.focused_pane = FocusedPane::Searches;
+        assert!(!screen_sized(&mut tui, 300, 40).contains("[W → "));
+        press(&mut tui, KeyCode::Char('w'));
+        press(&mut tui, KeyCode::Char('z'));
+        assert!(tui.state.layout.zoomed);
+        assert!(!tui.state.layout.is_visible(FocusedPane::Searches));
+        let screen = screen_sized(&mut tui, 300, 40);
+        assert!(screen.contains("[W → reset layout]"), "{screen}");
+        press(&mut tui, KeyCode::Char('W'));
+        assert!(!tui.state.layout.zoomed);
+        assert!(
+            FocusedPane::ALL
+                .iter()
+                .all(|p| tui.state.layout.is_visible(*p))
+        );
+    }
+
     #[test]
     fn page_keys_work_in_the_transfers_and_searches_lists_too() {
         let mut tui = furnished_tui();

soulseek-rs/src/ui/main_tui/render.rs

@@ -1,5 +1,5 @@
 use super::MainTui;
-use crate::models::{CommandBarMode, FocusedPane, RoomsView};
+use crate::models::{CommandBarMode, FocusedPane, PaneLayout, RoomsView};
 use crate::ui::panes::{
     InfoSubject, ResultsPaneParams, render_browse_pane, render_chat_pane,
     render_download_info_pane, render_downloads_pane, render_results_pane,
@@ -29,6 +29,7 @@ const HELP_LEFT: &[(&str, &[(&str, &str)])] = &[
             ("z", "zoom the focused pane"),
             ("w", "hide the focused pane"),
             ("Esc", "leave zoom"),
+            ("W", "every pane back, zoom off"),
             ("click", "focus a pane"),
         ],
     ),
@@ -95,10 +96,35 @@ const HELP_RIGHT: &[(&str, &[(&str, &str)])] = &[
             ("^u ^d", "half a page of them"),
             ("Home End / g G", "oldest / newest, or first / last row"),
             ("Tab / Shift-Tab", "next room, chat or user"),
+            ("/", "filter the messages, the room list or the tree"),
+            ("u", "filter a room's member list"),
+        ],
+    ),
+    (
+        "Browse popup",
+        &[
+            ("← → / h l", "close / open a folder, or step out / in"),
+            ("J K", "next / previous folder"),
+            ("H L", "close / open every folder"),
+            ("/", "filter by path, Enter keeps it, Esc clears"),
+            ("Enter", "open a folder, or download a file"),
+            ("d", "download a file, or a folder's files"),
+            ("r", "ask again after a timeout"),
         ],
     ),
 ];
 
+/// What the bar offers while a filter is being typed, wherever that is,
+/// with the keys that still move around there.
+fn filter_keys(
+    moves: &[(&'static str, &'static str)],
+) -> Vec<(&'static str, &'static str)> {
+    let mut keys = vec![("Type", "filter")];
+    keys.extend_from_slice(moves);
+    keys.extend([("Enter", "keep filter"), ("Esc", "clear filter")]);
+    keys
+}
+
 impl MainTui {
     pub(super) fn render(&mut self, frame: &mut Frame) {
         let shortcuts = self.shortcut_rows(frame.area().width);
@@ -481,10 +507,15 @@ impl MainTui {
                     ]
                 }
             }
+            RoomsView::Chat if self.state.rooms.filtering.is_some() => {
+                filter_keys(&[("PgUp/PgDn", "scroll"), ("↑↓", "pick user")])
+            }
             RoomsView::Chat => vec![
                 ("Enter", "say"),
                 ("PgUp/PgDn", "scroll"),
                 ("↑↓", "pick user"),
+                ("/", "find in chat"),
+                ("u", "find user"),
                 ("b", "browse user"),
                 ("m", "message user"),
                 ("Tab", "switch room"),
@@ -497,7 +528,7 @@ impl MainTui {
     /// The keys every pane shares for moving between and resizing panes,
     /// ending the bar the same way wherever the focus sits.
     fn pane_shortcuts(&self) -> Vec<(&'static str, &'static str)> {
-        vec![
+        let mut keys = vec![
             ("Tab/1-3", "pane"),
             (
                 "z",
@@ -508,9 +539,13 @@ impl MainTui {
                 },
             ),
             ("w", "hide"),
-            ("?", "keys"),
-            ("q", "quit"),
-        ]
+        ];
+        // Only once a pane is hidden or zoomed is there a layout to reset.
+        if self.state.layout != PaneLayout::default() {
+            keys.push(("W", "reset layout"));
+        }
+        keys.extend([("?", "keys"), ("q", "quit")]);
+        keys
     }
 
     /// Which shortcuts the bar offers, which is purely a question of what is
@@ -534,11 +569,14 @@ impl MainTui {
                     ("Enter", "send"),
                     ("Esc", "stop typing"),
                 ]
+            } else if self.state.chat_filtering {
+                filter_keys(&[("PgUp/PgDn", "scroll")])
             } else {
                 vec![
                     ("Enter", "type"),
                     ("PgUp/PgDn", "scroll"),
                     ("↑↓/Tab", "switch chat"),
+                    ("/", "find"),
                     ("m", "new chat"),
                     ("i/Esc", "close"),
                 ]
@@ -546,10 +584,16 @@ impl MainTui {
         } else if self.state.show_rooms {
             self.rooms_shortcuts()
         } else if self.state.show_browse {
+            if self.state.browse.active_tab().is_some_and(|b| b.filtering) {
+                // Typing goes to the filter, so no letter keys are on offer.
+                filter_keys(&[("↑/↓", "navigate"), ("PgUp/PgDn", "page")])
+            } else {
                 vec![
                     ("↑↓", "move"),
-                ("PgUp/PgDn", "page"),
+                    ("J/K", "next/prev folder"),
                     ("→←", "expand/collapse"),
+                    ("H/L", "collapse/expand all"),
+                    ("/", "filter"),
                     ("Enter", "open/download"),
                     ("d", "download folder"),
                     ("Tab", "switch user"),
@@ -557,6 +601,7 @@ impl MainTui {
                     ("w", "close tab"),
                     ("Esc", "hide"),
                 ]
+            }
         } else if self.state.command_bar_active {
             match self.state.command_bar_mode {
                 CommandBarMode::Search => vec![
@@ -581,19 +626,14 @@ impl MainTui {
             && self.state.focused_pane == FocusedPane::Results
         {
             // Typing goes to the filter, so no letter keys are on offer here.
-            vec![
-                ("Type", "filter"),
-                ("↑/↓", "navigate"),
-                ("PgUp/PgDn", "page"),
-                ("Enter", "keep filter"),
-                ("Esc", "clear filter"),
-            ]
+            filter_keys(&[("↑/↓", "navigate"), ("PgUp/PgDn", "page")])
         } else {
             let mut keys = match self.state.focused_pane {
                 FocusedPane::Searches => vec![
                     ("s", "search"),
                     ("Enter", "results"),
                     ("d", "remove"),
+                    ("C", "clear all"),
                     ("m", "message"),
                     ("i", "inbox"),
                     ("c", "chat"),

soulseek-rs/src/ui/main_tui/rooms.rs

@@ -1,6 +1,6 @@
 use super::MainTui;
-use super::input::{jumped, list_jump, scroll_log};
-use crate::models::RoomsView;
+use super::input::{FilterEdit, edit_filter, jumped, list_jump, scroll_log};
+use crate::models::{ChatFilter, RoomsView};
 use ratatui::crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
 
 impl MainTui {
@@ -30,6 +30,14 @@ impl MainTui {
             self.handle_room_filter_input(key);
             return;
         }
+        // So does typing a filter over the log or the member list; the
+        // other keys still move around.
+        if self.state.rooms.view == RoomsView::Chat
+            && self.state.rooms.filtering.is_some()
+            && self.handle_chat_filter_input(key)
+        {
+            return;
+        }
 
         match self.state.rooms.view {
             RoomsView::List => self.handle_rooms_list_input(key),
@@ -39,7 +47,7 @@ impl MainTui {
 
     fn handle_rooms_list_input(&mut self, key: KeyEvent) {
         let len = self.state.rooms.filtered_rooms().len();
-        if let Some(jump) = list_jump(key, self.popup_page()) {
+        if let Some(jump) = list_jump(key, self.popup_page(1)) {
             self.state.rooms.list_selected =
                 jumped(self.state.rooms.list_selected, len, jump);
             return;
@@ -80,25 +88,18 @@ impl MainTui {
     }
 
     fn handle_room_filter_input(&mut self, key: KeyEvent) {
-        match key.code {
-            KeyCode::Esc => {
+        let Some(edit) = edit_filter(&mut self.state.rooms.list_filter, key)
+        else {
+            return self.handle_rooms_list_input(key);
+        };
+        match edit {
+            FilterEdit::Changed | FilterEdit::Cleared => {
+                self.state.rooms.list_selected = 0;
+            }
+            FilterEdit::Kept => self.join_selected_room(),
+        }
+        if edit != FilterEdit::Changed {
             self.state.rooms.list_is_filtering = false;
-                self.state.rooms.list_filter.clear();
-                self.state.rooms.list_selected = 0;
-            }
-            KeyCode::Enter => {
-                self.state.rooms.list_is_filtering = false;
-                self.join_selected_room();
-            }
-            KeyCode::Char(c) => {
-                self.state.rooms.list_filter.push(c);
-                self.state.rooms.list_selected = 0;
-            }
-            KeyCode::Backspace => {
-                self.state.rooms.list_filter.pop();
-                self.state.rooms.list_selected = 0;
-            }
-            _ => {}
         }
     }
 
@@ -113,11 +114,24 @@ impl MainTui {
         if key.modifiers.contains(KeyModifiers::CONTROL) {
             return;
         }
+        let filtered = !self.state.rooms.log_filter.is_empty()
+            || !self.state.rooms.user_filter.is_empty();
         match key.code {
             KeyCode::Char('q') => self.state.show_rooms = false,
+            // Esc peels back one level: the filters first, then the list.
+            KeyCode::Esc if filtered => {
+                self.state.rooms.set_log_filter(String::new());
+                self.state.rooms.set_user_filter(String::new());
+            }
             KeyCode::Esc | KeyCode::Char('l') => {
                 self.state.rooms.view = RoomsView::List;
             }
+            KeyCode::Char('/') => {
+                self.state.rooms.filtering = Some(ChatFilter::Log);
+            }
+            KeyCode::Char('u') => {
+                self.state.rooms.filtering = Some(ChatFilter::Users);
+            }
             KeyCode::Tab => self.state.rooms.next_tab(),
             KeyCode::BackTab => self.state.rooms.prev_tab(),
             KeyCode::Char('x') => self.leave_active_room(),
@@ -137,6 +151,33 @@ impl MainTui {
         }
     }
 
+    /// The keys that edit whichever filter is being typed, the log's or the
+    /// member list's. Says whether `key` was one of them.
+    fn handle_chat_filter_input(&mut self, key: KeyEvent) -> bool {
+        let rooms = &mut self.state.rooms;
+        let over_log = rooms.filtering == Some(ChatFilter::Log);
+        let mut filter = if over_log {
+            rooms.log_filter.clone()
+        } else {
+            rooms.user_filter.clone()
+        };
+        let Some(edit) = edit_filter(&mut filter, key) else {
+            return false;
+        };
+        if edit != FilterEdit::Changed {
+            rooms.filtering = None;
+        }
+        // Keeping a filter leaves the view where it is.
+        if edit != FilterEdit::Kept {
+            if over_log {
+                rooms.set_log_filter(filter);
+            } else {
+                rooms.set_user_filter(filter);
+            }
+        }
+        true
+    }
+
     /// Browse the shares of the member highlighted in the active room. Closes
     /// the rooms popup so the browse tree is the sole overlay.
     fn browse_selected_room_user(&mut self) {

soulseek-rs/src/ui/mod.rs

@@ -1,11 +1,13 @@
 mod downloads;
 pub mod login;
 mod main_tui;
+mod paging;
 mod panes;
 mod styles;
 mod utils;
 
 pub use downloads::render_download_stats;
 pub use main_tui::launch_main_tui;
+pub use paging::*;
 pub use styles::*;
 pub use utils::*;

soulseek-rs/src/ui/paging.rs

@@ -0,0 +1,104 @@
+//! How a pane's table shows one page of a list that may run to tens of
+//! thousands of rows: which rows those are, and how ratatui is handed just
+//! those. Paging and drawing both count rows here, so they agree on what a
+//! page is.
+
+use crate::ui::pane_block;
+use ratatui::{
+    Frame,
+    layout::Rect,
+    widgets::{Table, TableState},
+};
+use std::ops::Range;
+
+/// Rows a list in `area` shows at once, less the `chrome` rows above it: a
+/// table header, a popup's tab bar. At least one, so a page key always
+/// moves, even before the first draw.
+#[must_use]
+pub fn page_of(area: Option<Rect>, chrome: u16) -> usize {
+    area.map_or(0, |area| {
+        usize::from(pane_block(false).inner(area).height.saturating_sub(chrome))
+    })
+    .max(1)
+}
+
+/// The page a table over `area` shows of `len` rows, `chrome` rows of the
+/// area being above them: where the last frame left off, moved only as far
+/// as keeps the selection in view. A selection past the end lands on the
+/// last row, as the table would have put it.
+pub fn page_window(
+    state: &mut TableState,
+    len: usize,
+    area: Rect,
+    chrome: u16,
+) -> Range<usize> {
+    if let Some(selected) = state.selected_mut() {
+        *selected = (*selected).min(len.saturating_sub(1));
+    }
+    visible_range(
+        state.offset(),
+        state.selected(),
+        len,
+        page_of(Some(area), chrome),
+    )
+}
+
+/// Draw `table`, holding the rows of the page that starts at `start`, with
+/// `state` shifted onto that page. The page start is kept for the next
+/// frame.
+pub fn render_page(
+    frame: &mut Frame,
+    table: Table,
+    area: Rect,
+    state: &mut TableState,
+    start: usize,
+) {
+    let mut page_state = TableState::default()
+        .with_selected(state.selected().map(|selected| selected - start));
+    frame.render_stateful_widget(table, area, &mut page_state);
+    *state.offset_mut() = start;
+}
+
+/// The page a `height`-tall table shows, by ratatui's rule (its
+/// `visible_rows` is private): the offset, moved only as far as keeps the
+/// selection in view. A selection past the end counts as the last row.
+fn visible_range(
+    offset: usize,
+    selected: Option<usize>,
+    len: usize,
+    height: usize,
+) -> Range<usize> {
+    let height = height.max(1);
+    let last = len.saturating_sub(1);
+    let start = match selected.map(|selected| selected.min(last)) {
+        Some(selected) => {
+            offset.clamp((selected + 1).saturating_sub(height), selected)
+        }
+        None => offset.min(last),
+    };
+    start..(start + height).min(len)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::{page_window, visible_range};
+    use ratatui::{layout::Rect, widgets::TableState};
+
+    #[test]
+    fn the_page_follows_the_selection_and_is_never_longer_than_the_pane() {
+        assert_eq!(visible_range(500, Some(505), 10_000, 10), 500..510);
+        assert_eq!(visible_range(0, Some(9_999), 10_000, 10), 9_990..10_000);
+        assert_eq!(visible_range(500, Some(499), 10_000, 10), 499..509);
+        assert_eq!(visible_range(9_995, None, 10_000, 10), 9_995..10_000);
+        assert_eq!(visible_range(0, Some(9), 3, 2), 1..3);
+    }
+
+    #[test]
+    fn a_window_pulls_a_selection_past_the_end_onto_the_last_row() {
+        // 6 rows tall: 2 border, 1 header, 3 of the list.
+        let area = Rect::new(0, 0, 40, 6);
+        let mut state = TableState::default().with_selected(Some(9));
+        assert_eq!(page_window(&mut state, 5, area, 1), 2..5);
+        assert_eq!(state.selected(), Some(4));
+    }
+}

soulseek-rs/src/ui/panes/browse_pane.rs

@@ -1,8 +1,8 @@
 use crate::models::{BrowseState, BrowseStatus, BrowseTabs};
 use crate::ui::{
-    HIGHLIGHT_SYMBOL, body_style, dimmed_style, error_style, format_bytes,
-    get_spinner_char, highlight_style, pane_block, primary_style,
-    row_highlight_style, warning_style,
+    HIGHLIGHT_SYMBOL, body_style, dimmed_style, error_style, filter_title,
+    format_bytes, get_spinner_char, highlight_style, page_window, pane_block,
+    primary_style, render_page, row_highlight_style, warning_style,
 };
 use ratatui::{
     Frame,
@@ -62,10 +62,22 @@ fn render_browse_one(
     spinner_state: usize,
 ) {
     let title = match browse.status {
-        BrowseStatus::Loaded => format!(
-            " Browse {} — {} files, {} folders  (Enter/d: download, Tab: user, w: close, Esc: hide) ",
+        BrowseStatus::Loaded => {
+            let shown =
+                browse.rows().iter().filter(|row| !row.is_folder).count();
+            filter_title(
+                &format!(
+                    "Browse {} — {shown}/{} files",
+                    browse.username, browse.file_count
+                ),
+                browse.filter(),
+                browse.filtering,
+                &format!(
+                    " Browse {} — {} files, {} folders  (Enter/d: download, /: filter, Tab: user, w: close, Esc: hide) ",
                     browse.username, browse.file_count, browse.folder_count
                 ),
+            )
+        }
         _ => format!(" Browse {} ", browse.username),
     };
     let block = pane_block(true).title(title);
@@ -105,9 +117,21 @@ fn render_browse_one(
             ];
             frame.render_widget(Paragraph::new(text).block(block), area);
         }
+        BrowseStatus::Loaded
+            if browse.rows().is_empty() && !browse.filter().is_empty() =>
+        {
+            let text = format!("Nothing here matches '{}'.", browse.filter());
+            frame.render_widget(
+                Paragraph::new(text).style(dimmed_style()).block(block),
+                area,
+            );
+        }
         BrowseStatus::Loaded => {
-            let rows: Vec<Row> = browse
-                .rows()
+            let all = browse.rows();
+            table_state.select(Some(browse.selected_row));
+            let window = page_window(table_state, all.len(), area, 0);
+            let start = window.start;
+            let rows: Vec<Row> = all[window]
                 .iter()
                 .map(|row| {
                     let indent = "  ".repeat(row.depth);
@@ -142,8 +166,7 @@ fn render_browse_one(
                     .highlight_spacing(HighlightSpacing::Always)
                     .block(block);
 
-            table_state.select(Some(browse.selected_row));
-            frame.render_stateful_widget(table, area, table_state);
+            render_page(frame, table, area, table_state, start);
         }
     }
 }

soulseek-rs/src/ui/panes/chat_pane.rs

@@ -1,7 +1,7 @@
-use crate::models::{AppState, ChatMessage, LogView, MessageDirection};
+use crate::models::{AppState, MessageDirection, contains_filter};
 use crate::ui::{
-    accent_style, border_style, dimmed_style, highlight_style, info_style,
-    primary_style, wrap_chat_line,
+    accent_style, border_style, dimmed_style, filter_title, highlight_style,
+    info_style, primary_style, wrap_chat_line,
 };
 use ratatui::{
     Frame,
@@ -24,7 +24,16 @@ pub fn render_chat_pane(
     let peer = peer.as_deref();
     let title = peer.map_or_else(
         || " Messages  (m: compose, i/Esc: close) ".to_string(),
-        |peer| format!(" {peer}  (↑↓/Tab: switch, m: to…, i/Esc: close) "),
+        |peer| {
+            filter_title(
+                peer,
+                &state.chat_filter,
+                state.chat_filtering,
+                &format!(
+                    " {peer}  (↑↓/Tab: switch, /: find, m: to…, i/Esc: close) "
+                ),
+            )
+        },
     );
     let block = Block::default()
         .borders(Borders::ALL)
@@ -52,14 +61,7 @@ pub fn render_chat_pane(
         return;
     };
 
-    render_messages(
-        frame,
-        body[0],
-        &state.messages,
-        &mut state.chat_view,
-        peer,
-        own_username,
-    );
+    render_messages(frame, body[0], state, peer, own_username);
     render_compose(frame, chunks[1], state);
 }
 
@@ -102,34 +104,37 @@ fn render_peers(
 fn render_messages(
     frame: &mut Frame,
     area: Rect,
-    messages: &[ChatMessage],
-    view: &mut LogView,
+    state: &mut AppState,
     peer: &str,
     own_username: &str,
 ) {
+    let AppState {
+        messages,
+        chat_view: view,
+        chat_wrapped: wrapped,
+        chat_filter: filter,
+        ..
+    } = state;
     let width = area.width as usize;
-    let lines: Vec<Line> = messages
-        .iter()
-        .filter(|m| m.peer == peer)
-        .flat_map(|m| {
+    let key = format!("{peer}\n{filter}");
+    let lines = wrapped.rows(width, &key, messages, |m| {
+        if m.peer != peer || !contains_filter(&m.text, filter) {
+            return Vec::new();
+        }
         let (sender, sender_style) = match m.direction {
             MessageDirection::Incoming => (peer, info_style()),
             MessageDirection::Outgoing => (own_username, accent_style()),
         };
         wrap_chat_line(
             vec![
-                    Span::styled(
-                        m.at.format("%H:%M ").to_string(),
-                        dimmed_style(),
-                    ),
+                Span::styled(m.at.format("%H:%M ").to_string(), dimmed_style()),
                 Span::styled(format!("<{sender}> "), sender_style),
             ],
             &m.text,
             primary_style(),
             width,
         )
-        })
-        .collect();
+    });
 
     // The newest rows, unless the reader is holding a place in the history.
     let window = view.window(lines.len(), usize::from(area.height));

soulseek-rs/src/ui/panes/downloads_pane.rs

@@ -4,8 +4,8 @@ use crate::ui::{
     GLYPH_ACTIVE, GLYPH_DONE, GLYPH_FAILED, GLYPH_QUEUED, HIGHLIGHT_SYMBOL,
     accent_style, body_style, dimmed_style, download_status_glyph, error_style,
     format_bytes, format_speed, header_style, inactive_style, info_style,
-    pane_block, pane_title, primary_style, row_highlight_style, success_style,
-    warning_style,
+    page_window, pane_block, pane_title, primary_style, render_page,
+    row_highlight_style, success_style, warning_style,
 };
 use ratatui::{
     Frame,
@@ -81,7 +81,15 @@ pub fn render_downloads_pane(
     .height(1);
 
     let name_width = column_width(area, &WIDTHS, NAME_COLUMN);
-    let mut rows: Vec<Row> = downloads
+    // Downloads come first, uploads after; one page of the two together.
+    let total = downloads.len() + uploads.len();
+    let window = page_window(table_state, total, area, 1);
+    let start = window.start;
+    let split = downloads.len();
+    let shown_downloads = &downloads[start.min(split)..window.end.min(split)];
+    let shown_uploads =
+        &uploads[start.saturating_sub(split)..window.end.saturating_sub(split)];
+    let mut rows: Vec<Row> = shown_downloads
         .iter()
         .map(|download_entry| {
             let download = &download_entry.download;
@@ -153,7 +161,7 @@ pub fn render_downloads_pane(
         })
         .collect();
 
-    rows.extend(uploads.iter().map(|upload| {
+    rows.extend(shown_uploads.iter().map(|upload| {
         let (status_icon, status_style) = match &upload.status {
             UploadStatus::Queued(_) => (GLYPH_QUEUED, warning_style()),
             UploadStatus::InProgress => (GLYPH_ACTIVE, accent_style()),
@@ -213,5 +221,5 @@ pub fn render_downloads_pane(
             focused,
         )));
 
-    frame.render_stateful_widget(table, area, table_state);
+    render_page(frame, table, area, table_state, start);
 }

soulseek-rs/src/ui/panes/results_pane.rs

@@ -2,8 +2,8 @@ use super::name_scroll::{column_width, end_offset, scroll_text};
 use crate::models::FileDisplayData;
 use crate::ui::{
     BYTES_PER_MB, HIGHLIGHT_SYMBOL, body_style, dimmed_style, format_bytes,
-    header_style, info_style, pane_block, pane_title, row_highlight_style,
-    success_style, warning_style,
+    header_style, info_style, page_window, pane_block, pane_title, render_page,
+    row_highlight_style, success_style, warning_style,
 };
 use ratatui::{
     Frame,
@@ -15,9 +15,13 @@ use std::collections::HashSet;
 
 const VERSION: &str = env!("CARGO_PKG_VERSION");
 
-const WIDTHS: [Constraint; 7] = [
+// The file name and its folder share whatever width the fixed columns leave,
+// the name getting the larger part: it is what a search is after, and a
+// folder's tail is a scroll away.
+const WIDTHS: [Constraint; 8] = [
     Constraint::Length(3),
     Constraint::Fill(3),
+    Constraint::Fill(2),
     Constraint::Length(12),
     Constraint::Length(15),
     Constraint::Length(10),
@@ -39,12 +43,28 @@ pub struct ResultsPaneParams<'a> {
     pub name_offset: usize,
 }
 
-/// Filename is the second column.
+/// The file name is the second column, the folder it sits in the third.
 const NAME_COLUMN: usize = 1;
+const FOLDER_COLUMN: usize = 2;
 
+/// A shared path as `(folder, name)`. Peers send backslashes, but a slash
+/// counts too.
+fn split_path(path: &str) -> (&str, &str) {
+    path.rsplit_once(['\\', '/']).unwrap_or(("", path))
+}
+
+/// The offset that brings the end of a result's longer column into view.
+/// One offset scrolls the name and the folder together, so it runs until
+/// both tails are showing.
 #[must_use]
-pub fn name_end_offset(name: &str, area: Rect) -> usize {
-    end_offset(name, area, &WIDTHS, NAME_COLUMN)
+pub fn name_end_offset(path: &str, area: Rect) -> usize {
+    let (folder, name) = split_path(path);
+    end_offset(name, area, &WIDTHS, NAME_COLUMN).max(end_offset(
+        folder,
+        area,
+        &WIDTHS,
+        FOLDER_COLUMN,
+    ))
 }
 
 /// Whether the rendered row `display_idx` is selected. `selected_indices` holds
@@ -118,6 +138,7 @@ pub fn render_results_pane(
     let header = Row::new(vec![
         Cell::from("✓").style(header_style()),
         Cell::from("Filename").style(header_style()),
+        Cell::from("Folder").style(header_style()),
         Cell::from("Size").style(header_style()),
         Cell::from("User").style(header_style()),
         Cell::from("Bitrate").style(header_style()),
@@ -127,10 +148,13 @@ pub fn render_results_pane(
     .height(1);
 
     let name_width = column_width(area, &WIDTHS, NAME_COLUMN);
-    let rows: Vec<Row> = items
-        .iter()
-        .enumerate()
+    let folder_width = column_width(area, &WIDTHS, FOLDER_COLUMN);
+    let window = page_window(table_state, items.len(), area, 1);
+    let start = window.start;
+    let rows: Vec<Row> = (start..)
+        .zip(&items[window])
         .map(|(idx, file)| {
+            let (folder, name) = split_path(&file.filename);
             let checkbox =
                 if row_is_selected(idx, original_indices, selected_indices) {
                     "[✓]"
@@ -159,12 +183,10 @@ pub fn render_results_pane(
 
             Row::new(vec![
                 Cell::from(checkbox).style(checkbox_style),
-                Cell::from(scroll_text(
-                    &file.filename,
-                    name_offset,
-                    name_width,
-                ))
+                Cell::from(scroll_text(name, name_offset, name_width))
                     .style(body_style()),
+                Cell::from(scroll_text(folder, name_offset, folder_width))
+                    .style(dimmed_style()),
                 Cell::from(format_bytes(file.size)).style(warning_style()),
                 Cell::from(file.username.clone()).style(info_style()),
                 Cell::from(bitrate_str).style(dimmed_style()),
@@ -189,7 +211,7 @@ pub fn render_results_pane(
         .highlight_spacing(HighlightSpacing::Always)
         .block(pane_block(focused).title(pane_title("2", &title, focused)));
 
-    frame.render_stateful_widget(table, area, table_state);
+    render_page(frame, table, area, table_state, start);
 }
 
 #[cfg(test)]
@@ -202,8 +224,18 @@ mod tests {
     fn render_rows(items: &[FileDisplayData], name_offset: usize) -> String {
         let mut state = TableState::default();
         state.select(Some(0));
+        render_with(items, &mut state, name_offset)
+    }
+
+    fn render_with(
+        items: &[FileDisplayData],
+        state: &mut TableState,
+        name_offset: usize,
+    ) -> String {
+        // Wide enough for the name column to hold 11 cells, with 7 for the
+        // folder beside it, and tall enough for three rows.
         let mut terminal =
-            Terminal::new(TestBackend::new(80, 6)).expect("backend");
+            Terminal::new(TestBackend::new(88, 6)).expect("backend");
         terminal
             .draw(|frame| {
                 render_results_pane(
@@ -211,7 +243,7 @@ mod tests {
                     frame.area(),
                     ResultsPaneParams {
                         items,
-                        table_state: &mut state,
+                        table_state: state,
                         selected_indices: &HashSet::new(),
                         original_indices: None,
                         filter_query: "",
@@ -267,6 +299,34 @@ mod tests {
         assert!(!screen.contains("…\u{301}"), "{screen}");
     }
 
+    #[test]
+    fn a_path_shows_its_name_before_its_folder() {
+        let items = [file("@@abc\\Music\\Album\\01.flac"), file("cover.jpg")];
+        let screen = render_rows(&items, 0);
+        assert!(screen.contains("01.flac     @@abc\\M"), "{screen}");
+        assert!(screen.contains("cover.jpg   "), "{screen}");
+    }
+
+    #[test]
+    fn one_offset_scrolls_the_name_and_the_folder_together() {
+        let items = [file("@@abc\\Music\\Album\\abcdefghijklmnopqrstuvwxyz")];
+        let screen = render_rows(&items, 4);
+        assert!(screen.contains("…efghijklmn …c\\Musi"), "{screen}");
+    }
+
+    #[test]
+    fn the_end_offset_is_the_longer_columns() {
+        // 88 cells wide: 11 for the name, 7 for the folder.
+        let area = ratatui::layout::Rect::new(0, 0, 88, 6);
+        let folder = "f".repeat(20);
+        assert_eq!(super::name_end_offset(&format!("{folder}\\a"), area), 14);
+        let name = "x".repeat(40);
+        assert_eq!(
+            super::name_end_offset(&format!("{folder}\\{name}"), area),
+            30
+        );
+    }
+
     #[test]
     fn an_unscrolled_name_starts_at_its_beginning() {
         let items = [file("abcdefghijklmnopqrstuvwxyz0123456789ABCD")];
@@ -275,6 +335,20 @@ mod tests {
         assert!(!screen.contains("…"), "{screen}");
     }
 
+    #[test]
+    fn a_far_selection_is_drawn_from_its_own_page() {
+        let items: Vec<FileDisplayData> =
+            (0..10_000).map(|i| file(&format!("{i}.mp3"))).collect();
+        let mut state = TableState::default();
+        state.select(Some(9_999));
+        let screen = render_with(&items, &mut state, 0);
+        assert!(screen.contains("›[ ] 9999.mp3"), "{screen}");
+        assert!(screen.contains(" [ ] 9997.mp3"), "{screen}");
+        assert!(!screen.contains(" [ ] 0.mp3"), "{screen}");
+        assert_eq!(state.offset(), 9_997, "the next frame starts here");
+        assert_eq!(state.selected(), Some(9_999));
+    }
+
     #[test]
     fn identity_mapping_used_when_no_filter() {
         let selected: HashSet<usize> = std::iter::once(1).collect();

soulseek-rs/src/ui/panes/rooms_pane.rs

@@ -1,8 +1,11 @@
-use crate::models::{LogView, RoomsState, RoomsView};
+use crate::models::{
+    ChatFilter, LogView, OpenRoom, RoomLine, RoomsState, RoomsView, WrappedLog,
+    contains_filter, matching_users,
+};
 use crate::ui::{
-    HIGHLIGHT_SYMBOL, PANE_PADDING, accent_style, dimmed_style,
-    highlight_style, info_style, pane_block, plain_title, primary_style,
-    row_highlight_style, wrap_chat_line,
+    HIGHLIGHT_SYMBOL, PANE_PADDING, accent_style, dimmed_style, filter_title,
+    highlight_style, info_style, page_window, pane_block, plain_title,
+    primary_style, render_page, row_highlight_style, wrap_chat_line,
 };
 use ratatui::{
     Frame,
@@ -61,7 +64,10 @@ fn render_list(
         Cell::from("room").style(dimmed_style()),
         Cell::from("users").style(dimmed_style()),
     ]);
-    let table_rows: Vec<Row> = filtered
+    table_state.select(Some(rooms.list_selected));
+    let window = page_window(table_state, filtered.len(), area, 1);
+    let start = window.start;
+    let table_rows: Vec<Row> = filtered[window]
         .iter()
         .map(|r| {
             let open = rooms.open_index(&r.name).is_some();
@@ -90,14 +96,18 @@ fn render_list(
             .highlight_spacing(HighlightSpacing::Always)
             .block(block);
 
-    table_state.select(Some(rooms.list_selected.min(filtered.len() - 1)));
-    frame.render_stateful_widget(table, area, table_state);
+    render_page(frame, table, area, table_state, start);
 }
 
 fn render_chat(frame: &mut Frame, area: Rect, rooms: &mut RoomsState) {
-    let block = pane_block(true).title(
-        " Chat rooms  (Tab: switch, l: room list, x: leave, Esc: back) ",
+    let typing_log = rooms.filtering == Some(ChatFilter::Log);
+    let title = filter_title(
+        "Chat rooms",
+        &rooms.log_filter,
+        typing_log,
+        " Chat rooms  (Tab: switch, /: find, u: find user, l: room list, x: leave, Esc: back) ",
     );
+    let block = pane_block(true).title(title);
     let inner = block.inner(area);
     frame.render_widget(block, area);
 
@@ -115,6 +125,9 @@ fn render_chat(frame: &mut Frame, area: Rect, rooms: &mut RoomsState) {
         active: active_index,
         user_selected,
         composing,
+        log_filter,
+        user_filter,
+        filtering,
         ..
     } = rooms;
     let Some(active) = open.get_mut(*active_index) else {
@@ -131,8 +144,28 @@ fn render_chat(frame: &mut Frame, area: Rect, rooms: &mut RoomsState) {
         Layout::horizontal([Constraint::Fill(1), Constraint::Length(22)])
             .split(chunks[1]);
 
-    render_messages(frame, body[0], active.lines.as_slice(), &mut active.view);
-    render_users(frame, body[1], &active.users, *user_selected);
+    let OpenRoom {
+        lines,
+        view,
+        wrapped,
+        users,
+        ..
+    } = active;
+    render_messages(frame, body[0], lines, view, wrapped, log_filter);
+    let shown = matching_users(users, user_filter);
+    let typing_users = *filtering == Some(ChatFilter::Users);
+    let members = if typing_users || !user_filter.is_empty() {
+        format!(
+            "Users {}/{} · {}{}",
+            shown.len(),
+            users.len(),
+            user_filter,
+            if typing_users { "_" } else { "" }
+        )
+    } else {
+        format!("Users ({})", users.len())
+    };
+    render_users(frame, body[1], &shown, *user_selected, members);
 
     // Compose line or hint.
     if *composing {
@@ -179,33 +212,32 @@ fn render_tab_bar(frame: &mut Frame, area: Rect, rooms: &RoomsState) {
 fn render_messages(
     frame: &mut Frame,
     area: Rect,
-    lines: &[crate::models::RoomLine],
+    lines: &[RoomLine],
     view: &mut LogView,
+    wrapped: &mut WrappedLog,
+    filter: &str,
 ) {
-    // Wrap each message to the pane width, then show the rows the reader is
+    // Each message wrapped to the pane width, then the rows the reader is
     // at: the newest ones, unless they are holding a place in the history.
     let width = area.width as usize;
-    let rendered: Vec<Line> = lines
-        .iter()
-        .flat_map(|l| {
+    let rendered = wrapped.rows(width, filter, lines, |l| {
+        let sender = l.username.as_deref().unwrap_or_default();
+        if !contains_filter(&l.text, filter) && !contains_filter(sender, filter)
+        {
+            return Vec::new();
+        }
         let time =
             Span::styled(l.at.format("%H:%M ").to_string(), dimmed_style());
         match &l.username {
             Some(user) => wrap_chat_line(
-                    vec![
-                        time,
-                        Span::styled(format!("<{user}> "), info_style()),
-                    ],
+                vec![time, Span::styled(format!("<{user}> "), info_style())],
                 &l.text,
                 primary_style(),
                 width,
             ),
-                None => {
-                    wrap_chat_line(vec![time], &l.text, dimmed_style(), width)
+            None => wrap_chat_line(vec![time], &l.text, dimmed_style(), width),
         }
-            }
-        })
-        .collect();
+    });
     let window = view.window(rendered.len(), usize::from(area.height));
     frame.render_widget(Paragraph::new(rendered[window].to_vec()), area);
 }
@@ -213,14 +245,15 @@ fn render_messages(
 fn render_users(
     frame: &mut Frame,
     area: Rect,
-    users: &[String],
+    users: &[&str],
     selected: usize,
+    title: String,
 ) {
     let block = Block::default()
         .borders(Borders::LEFT)
         .border_style(dimmed_style())
         .padding(PANE_PADDING)
-        .title(plain_title(format!("Users ({})", users.len()), false));
+        .title(plain_title(title, false));
     let inner = block.inner(area);
     frame.render_widget(block, area);
 

soulseek-rs/src/ui/styles.rs

@@ -138,6 +138,23 @@ pub fn plain_title(title: impl Into<String>, focused: bool) -> Line<'static> {
     ))
 }
 
+/// A popup's title: `idle` until its list is filtered, then what it is
+/// filtered by, a caret after it while that is still being typed, and how
+/// the filter ends.
+#[must_use]
+pub fn filter_title(
+    head: &str,
+    filter: &str,
+    typing: bool,
+    idle: &str,
+) -> String {
+    if !typing && filter.is_empty() {
+        return idle.to_string();
+    }
+    let caret = if typing { "_" } else { "" };
+    format!(" {head} · filter: {filter}{caret}  (Enter: keep, Esc: clear) ")
+}
+
 /// The standard bordered pane. Chain `.title(..)` for a legend.
 pub fn pane_block(focused: bool) -> Block<'static> {
     Block::default()

website/src/components/tui/hero-terminal.tsx

@@ -37,8 +37,9 @@ export const HeroTerminal = () => {
             >
               <StatusLine counts={demo.counts} pct={demo.pct} />
 
-              {/* Results across the top with the whole width for long names;
-                  Searches, Transfers and Info share the row underneath. */}
+              {/* Results across the top, file names in a column of their own
+                  with the folder beside them; Searches, Transfers and Info
+                  share the row underneath. */}
               <div className="mt-3 grid gap-2.5" style={{ gridTemplateRows: '330px 300px' }}>
                 <div className="relative min-h-0 overflow-hidden">
                   <ResultsPane

website/src/components/tui/panes.tsx

@@ -5,7 +5,7 @@ import { cn } from '@/lib/utils'
 import { TuiPane } from './chrome'
 import type { ResultRow, SearchRow, TransferRow, TransferStatus } from './data'
 
-const RESULT_COLS = '30px 1fr 74px 92px 78px 74px 42px'
+const RESULT_COLS = '30px 3fr 2fr 74px 92px 78px 74px 42px'
 const TRANSFER_COLS = '48px 1fr 96px 168px 74px'
 
 interface SearchesPaneProps {
@@ -134,6 +134,7 @@ export const ResultsPane = ({
     >
       <span>✓</span>
       <span>Filename</span>
+      <span>Folder</span>
       <span>Size</span>
       <span>User</span>
       <span>Bitrate</span>
@@ -143,6 +144,7 @@ export const ResultsPane = ({
     <div className="flex-1 overflow-y-auto">
       {rows.map((row, i) => {
         const { glyph, tone } = resultGlyph(row)
+        const parts = row.name.split('\\')
         const isSelected = selected === i
         return (
           <button
@@ -167,7 +169,10 @@ export const ResultsPane = ({
                 isSelected ? 'text-[var(--color-paper)]' : 'text-[var(--color-paper-dim)]',
               )}
             >
-              {row.name}
+              {parts.at(-1)}
+            </span>
+            <span className="overflow-hidden text-ellipsis whitespace-nowrap text-[var(--color-dust)]">
+              {parts.slice(0, -1).join('\\')}
             </span>
             <span className="text-right text-[var(--color-tape)]">{row.size}</span>
             <span className="text-[var(--color-signal)]">{row.user}</span>

website/src/pages/docs.tsx

@@ -34,10 +34,11 @@ const PANE_KEYS: readonly (readonly [string, string])[] = [
   ['1–3', 'focus a pane, and bring it back if hidden'],
   ['z', 'zoom the focused pane to the whole window'],
   ['w', 'hide the focused pane; the others widen'],
+  ['W', 'every pane back on screen, zoom off'],
   ['↑ ↓ · j k', 'move a row in any list'],
   ['Home End · g G', 'first / last row'],
   ['PgUp PgDn · ^u ^d', 'a page, or half a page; in a chat, back through the log'],
-  ['h l · ← →', 'scroll a long name or query sideways, 0 and $ to either end'],
+  ['h l · ← →', 'scroll a long name, folder or query sideways, 0 and $ to either end'],
 ]
 
 const ROOM_KEYS: readonly (readonly [string, string])[] = [
@@ -46,6 +47,8 @@ const ROOM_KEYS: readonly (readonly [string, string])[] = [
   ['x', 'leave the active room'],
   ['l', 'back to the room list'],
   ['↑ ↓', 'select a member'],
+  ['/', 'search the chat log; in the inbox, the conversation'],
+  ['u', 'filter the member list'],
   ['b', "browse the member's files"],
   ['m', 'message the member'],
 ]
@@ -54,7 +57,7 @@ const PANES: readonly { num?: number; title: string; body: string }[] = [
   {
     num: 2,
     title: 'Results',
-    body: 'Files from the network across the whole width: size, user, bitrate, speed, free slots. Space selects, Enter queues a download. h/l or ←/→ scroll a long name, 0 and $ jump to either end.',
+    body: 'Files from the network across the whole width, each name in a column of its own with its folder beside it, then size, user, bitrate, speed, free slots. Space selects, Enter queues a download. h/l or ←/→ scroll a long name and folder, 0 and $ jump to either end.',
   },
   {
     num: 1,