feat(tui): scroll long result names and page through results
Closes #55. While [2] Results is focused the Info pane describes the highlighted result, so a truncated path can be read in full. h/l (or the arrow keys) scroll the filename column by display cells, 0 and $ jump to either end of the highlighted name, and Home/End, g/G, PgUp/PgDn and Ctrl-f/b/d/u move through the list; the same keys work while a filter is being typed. Ctrl chords are no longer read as their bare letter: outside [2] they do nothing, where before Ctrl-d deleted a search and Ctrl-c opened rooms. Space after a filter that matches nothing no longer indexes an empty list.
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@@ -1,11 +1,15 @@
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use super::MainTui;
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use crate::models::{CommandBarMode, FocusedPane};
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use crate::ui::pane_block;
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use crate::ui::panes::name_end_offset;
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use ratatui::crossterm::event::{
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KeyCode, KeyEvent, KeyModifiers, MouseButton, MouseEvent, MouseEventKind,
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};
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use ratatui::layout::Position;
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use ratatui::widgets::TableState;
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const NAME_SCROLL_STEP: isize = 8;
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impl MainTui {
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pub(super) fn handle_key_event(&mut self, key: KeyEvent) {
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// Command bar takes priority
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@@ -29,6 +33,13 @@ impl MainTui {
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return self.handle_settings_input(key);
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}
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if key.modifiers.contains(KeyModifiers::CONTROL) {
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if self.state.focused_pane == FocusedPane::Results {
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self.handle_results_input(key);
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}
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return;
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}
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// Filter mode in Results pane
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if self.state.results_is_filtering
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&& self.state.focused_pane == FocusedPane::Results
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@@ -291,21 +302,7 @@ impl MainTui {
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KeyCode::Enter => {
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self.state.results_is_filtering = false;
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}
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KeyCode::Up => {
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cycle(
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&mut self.state.results_table_state,
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self.state.results_filtered_items.len(),
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false,
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);
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}
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KeyCode::Down => {
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cycle(
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&mut self.state.results_table_state,
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self.state.results_filtered_items.len(),
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true,
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);
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}
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_ => {}
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_ => self.handle_results_input(key),
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}
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}
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@@ -330,6 +327,7 @@ impl MainTui {
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self.state.results_filtered_indices =
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(0..search.results.len()).collect();
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self.state.results_selected_indices.clear();
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self.state.results_name_offset = 0;
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self.state.results_table_state.select(Some(0));
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self.state.focused_pane = FocusedPane::Results;
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}
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@@ -350,11 +348,13 @@ impl MainTui {
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}
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fn handle_results_input(&mut self, key: KeyEvent) {
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let items_count = if self.state.results_filter_query.is_empty() {
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self.state.results_items.len()
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} else {
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self.state.results_filtered_items.len()
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};
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let ctrl = key.modifiers.contains(KeyModifiers::CONTROL);
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if ctrl && !matches!(key.code, KeyCode::Char('f' | 'b' | 'd' | 'u')) {
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return;
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}
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let items_count = self.visible_results().len();
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let page = self.results_page_size();
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let half = (page / 2).max(1);
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match key.code {
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KeyCode::Up | KeyCode::Char('k') => {
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@@ -363,29 +363,36 @@ impl MainTui {
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KeyCode::Down | KeyCode::Char('j') => {
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cycle(&mut self.state.results_table_state, items_count, true);
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}
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KeyCode::Home | KeyCode::Char('g') => self.select_row(0),
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KeyCode::End | KeyCode::Char('G') => {
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self.select_row(items_count.saturating_sub(1));
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}
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KeyCode::PageDown => self.scroll_rows(page),
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KeyCode::PageUp => self.scroll_rows(-page),
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KeyCode::Char('f') if ctrl => self.scroll_rows(page),
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KeyCode::Char('b') if ctrl => self.scroll_rows(-page),
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KeyCode::Char('d') if ctrl => self.scroll_rows(half),
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KeyCode::Char('u') if ctrl => self.scroll_rows(-half),
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KeyCode::Right | KeyCode::Char('l') => {
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self.scroll_names(NAME_SCROLL_STEP);
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}
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KeyCode::Left | KeyCode::Char('h') => {
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self.scroll_names(-NAME_SCROLL_STEP);
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}
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KeyCode::Char('0') => self.state.results_name_offset = 0,
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KeyCode::Char('$') => {
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self.state.results_name_offset = self.highlighted_name_end();
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}
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KeyCode::Char(' ') => {
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if let Some(current) = self.state.results_table_state.selected()
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let index = self
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.state
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.results_table_state
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.selected()
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.and_then(|row| self.original_index(row));
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if let Some(index) = index
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&& !self.state.results_selected_indices.remove(&index)
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{
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let actual_index =
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if self.state.results_filter_query.is_empty() {
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current
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} else {
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self.state.results_filtered_indices[current]
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};
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if self
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.state
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.results_selected_indices
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.contains(&actual_index)
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{
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self.state
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.results_selected_indices
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.remove(&actual_index);
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} else {
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self.state
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.results_selected_indices
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.insert(actual_index);
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}
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self.state.results_selected_indices.insert(index);
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}
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}
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KeyCode::Char('/') => {
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@@ -411,6 +418,42 @@ impl MainTui {
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}
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}
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fn select_row(&mut self, target: usize) {
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let len = self.visible_results().len();
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if len > 0 {
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self.state
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.results_table_state
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.select(Some(target.min(len - 1)));
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}
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}
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fn scroll_rows(&mut self, delta: isize) {
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let current = self.state.results_table_state.selected().unwrap_or(0);
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self.select_row(current.saturating_add_signed(delta));
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}
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fn scroll_names(&mut self, delta: isize) {
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let end = self.highlighted_name_end();
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let current = self.state.results_name_offset.min(end);
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self.state.results_name_offset =
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current.saturating_add_signed(delta).min(end);
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}
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fn highlighted_name_end(&self) -> usize {
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let Some(area) = self.state.results_pane_area else {
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return 0;
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};
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self.highlighted_result()
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.map_or(0, |file| name_end_offset(&file.filename, area))
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}
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fn results_page_size(&self) -> isize {
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let rows = self.state.results_pane_area.map_or(1, |area| {
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pane_block(false).inner(area).height.saturating_sub(1)
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});
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rows.max(1) as isize
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}
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fn handle_downloads_input(&mut self, key: KeyEvent) {
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// The pane lists downloads first, then uploads; navigation spans both.
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let rows = self.state.downloads.len() + self.state.uploads.len();
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