| 1 | //! Screen 1: the play queue. |
| 2 | |
| 3 | use std::{collections::HashSet, time::Duration}; |
| 4 | |
| 5 | use crossterm::event::MouseEvent; |
| 6 | use ratatui::{ |
| 7 | Frame, |
| 8 | layout::{Constraint, Layout, Rect}, |
| 9 | style::Modifier, |
| 10 | text::{Line, Span}, |
| 11 | widgets::{Cell, Row}, |
| 12 | }; |
| 13 | |
| 14 | use super::{Ctx, Screen, draw_lyrics}; |
| 15 | use crate::{ |
| 16 | action::Action, |
| 17 | config::{ColumnField, Config}, |
| 18 | mpd::{MpdEvent, Reply, Selection, commands}, |
| 19 | popups::{AddToPlaylistPopup, ConfirmPopup, InputPopup, InputPurpose}, |
| 20 | ui::{ |
| 21 | self, |
| 22 | list::{Click, ListView}, |
| 23 | }, |
| 24 | util::format_duration, |
| 25 | }; |
| 26 | |
| 27 | pub struct QueueScreen { |
| 28 | list: ListView, |
| 29 | /// Marked songs by queue id. |
| 30 | marks: HashSet<u32>, |
| 31 | lyrics_pane: bool, |
| 32 | } |
| 33 | |
| 34 | impl QueueScreen { |
| 35 | pub fn new(config: &Config) -> Self { |
| 36 | Self { |
| 37 | list: ListView::default(), |
| 38 | marks: HashSet::new(), |
| 39 | lyrics_pane: config.ui.lyrics_pane, |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | pub fn lyrics_pane_visible(&self) -> bool { |
| 44 | self.lyrics_pane |
| 45 | } |
| 46 | |
| 47 | /// Ids of the marked songs in queue order, or of the selected song. |
| 48 | fn targets(&self, ctx: &Ctx) -> Vec<u32> { |
| 49 | let queue = &ctx.mpd.queue; |
| 50 | if self.marks.is_empty() { |
| 51 | self.list |
| 52 | .selected(queue.len()) |
| 53 | .and_then(|i| queue[i].id) |
| 54 | .into_iter() |
| 55 | .collect() |
| 56 | } else { |
| 57 | queue |
| 58 | .iter() |
| 59 | .filter_map(|s| s.id.filter(|id| self.marks.contains(id))) |
| 60 | .collect() |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | fn target_files(&self, ctx: &Ctx) -> Vec<String> { |
| 65 | let ids: HashSet<u32> = self.targets(ctx).into_iter().collect(); |
| 66 | ctx.mpd |
| 67 | .queue |
| 68 | .iter() |
| 69 | .filter(|s| s.id.is_some_and(|id| ids.contains(&id))) |
| 70 | .map(|s| s.file.clone()) |
| 71 | .collect() |
| 72 | } |
| 73 | |
| 74 | fn play_selected(&self, ctx: &Ctx) { |
| 75 | let queue = &ctx.mpd.queue; |
| 76 | if let Some(id) = self.list.selected(queue.len()).and_then(|i| queue[i].id) { |
| 77 | ctx.client.exec(commands::play_id(id)); |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | fn move_selected(&mut self, down: bool, ctx: &Ctx) { |
| 82 | let len = ctx.mpd.queue.len(); |
| 83 | let Some(index) = self.list.selected(len) else { |
| 84 | return; |
| 85 | }; |
| 86 | let target = if down { |
| 87 | index + 1 |
| 88 | } else { |
| 89 | index.wrapping_sub(1) |
| 90 | }; |
| 91 | if target >= len { |
| 92 | return; |
| 93 | } |
| 94 | ctx.client |
| 95 | .exec(commands::move_pos(index as u32, target as u32)); |
| 96 | self.list.select(target, len); |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | impl Screen for QueueScreen { |
| 101 | fn draw(&mut self, frame: &mut Frame, area: Rect, ctx: &Ctx) { |
| 102 | let area = if self.lyrics_pane { |
| 103 | let width = ctx.config.ui.lyrics_pane_width; |
| 104 | let [queue, lyrics] = Layout::horizontal([ |
| 105 | Constraint::Percentage(100 - width), |
| 106 | Constraint::Percentage(width), |
| 107 | ]) |
| 108 | .areas(area); |
| 109 | draw_lyrics(frame, lyrics, ctx, false); |
| 110 | queue |
| 111 | } else { |
| 112 | area |
| 113 | }; |
| 114 | |
| 115 | let theme = ctx.theme(); |
| 116 | let queue = &ctx.mpd.queue; |
| 117 | let columns = &ctx.config.ui.queue_columns; |
| 118 | let total: Duration = queue.iter().filter_map(|s| s.duration).sum(); |
| 119 | let title = Line::from(vec![ |
| 120 | Span::raw(" Queue "), |
| 121 | Span::styled( |
| 122 | format!("{} songs · {} ", queue.len(), format_duration(total)), |
| 123 | theme.dim(), |
| 124 | ), |
| 125 | ]); |
| 126 | let mut widths = vec![Constraint::Length(1)]; |
| 127 | widths.extend(columns.iter().map(|c| match c.field { |
| 128 | ColumnField::Duration => Constraint::Length(c.width.max(5)), |
| 129 | ColumnField::Track | ColumnField::Disc => Constraint::Length(c.width.max(2)), |
| 130 | _ => Constraint::Fill(c.width), |
| 131 | })); |
| 132 | let header = Row::new( |
| 133 | std::iter::once(Cell::from("")) |
| 134 | .chain(columns.iter().map(|c| Cell::from(c.field.title()))), |
| 135 | ) |
| 136 | .style(theme.dim().add_modifier(Modifier::BOLD)); |
| 137 | |
| 138 | if queue.is_empty() { |
| 139 | let block = ui::pane(title, true, theme); |
| 140 | let inner = block.inner(area); |
| 141 | frame.render_widget(block, area); |
| 142 | ui::draw_placeholder( |
| 143 | frame, |
| 144 | inner, |
| 145 | &[ |
| 146 | "The queue is empty.", |
| 147 | "", |
| 148 | "Add songs from the Browser (2) or the Library (4).", |
| 149 | ], |
| 150 | theme, |
| 151 | ); |
| 152 | return; |
| 153 | } |
| 154 | |
| 155 | let marks = &self.marks; |
| 156 | self.list.render( |
| 157 | frame, |
| 158 | area, |
| 159 | ui::pane(title, true, theme), |
| 160 | Some(header), |
| 161 | &widths, |
| 162 | queue.len(), |
| 163 | true, |
| 164 | theme, |
| 165 | |i| { |
| 166 | let song = &queue[i]; |
| 167 | let marked = song.id.is_some_and(|id| marks.contains(&id)); |
| 168 | let (marker, style) = if ctx.mpd.is_current(song) { |
| 169 | ("▶", theme.playing()) |
| 170 | } else if marked { |
| 171 | ("●", theme.marked()) |
| 172 | } else { |
| 173 | (" ", theme.text()) |
| 174 | }; |
| 175 | let style = if marked { |
| 176 | style.patch(theme.marked()) |
| 177 | } else { |
| 178 | style |
| 179 | }; |
| 180 | Row::new( |
| 181 | std::iter::once(Cell::from(Span::styled(marker, style))).chain( |
| 182 | columns |
| 183 | .iter() |
| 184 | .map(|c| Cell::from(ui::song_field(song, c.field))), |
| 185 | ), |
| 186 | ) |
| 187 | .style(style) |
| 188 | }, |
| 189 | ); |
| 190 | } |
| 191 | |
| 192 | fn handle_action(&mut self, action: Action, ctx: &mut Ctx) -> bool { |
| 193 | let len = ctx.mpd.queue.len(); |
| 194 | if self.list.navigate(action, len) { |
| 195 | return true; |
| 196 | } |
| 197 | match action { |
| 198 | Action::Activate | Action::Right => self.play_selected(ctx), |
| 199 | Action::Delete | Action::AddToQueue if self.marks.is_empty() => { |
| 200 | // By position, so that repeated presses delete successive rows |
| 201 | // even before the queue has been refreshed. |
| 202 | if let Some(index) = self.list.selected(len) { |
| 203 | ctx.client.exec(commands::delete_pos(index as u32)); |
| 204 | } |
| 205 | } |
| 206 | Action::Delete | Action::AddToQueue => { |
| 207 | let ids = self.targets(ctx); |
| 208 | ctx.client |
| 209 | .exec_all(ids.into_iter().map(commands::delete_id).collect()); |
| 210 | self.marks.clear(); |
| 211 | } |
| 212 | Action::MoveItemUp => self.move_selected(false, ctx), |
| 213 | Action::MoveItemDown => self.move_selected(true, ctx), |
| 214 | Action::ClearQueue if len > 0 => { |
| 215 | ctx.popup(ConfirmPopup::new( |
| 216 | format!("Remove all {len} songs from the queue?"), |
| 217 | vec![commands::clear()], |
| 218 | )); |
| 219 | } |
| 220 | Action::ShuffleQueue => ctx.client.exec(commands::shuffle()), |
| 221 | Action::SaveQueue if len > 0 => { |
| 222 | ctx.popup(InputPopup::new( |
| 223 | "Save queue as", |
| 224 | "", |
| 225 | InputPurpose::SaveQueue, |
| 226 | )); |
| 227 | } |
| 228 | Action::JumpToCurrent => match ctx.mpd.status.song { |
| 229 | Some(pos) => self.list.select(pos as usize, len), |
| 230 | None => ctx.notify("Nothing is playing"), |
| 231 | }, |
| 232 | Action::ToggleLyricsPane => self.lyrics_pane = !self.lyrics_pane, |
| 233 | Action::ToggleMark => { |
| 234 | if let Some(id) = self.list.selected(len).and_then(|i| ctx.mpd.queue[i].id) { |
| 235 | if !self.marks.remove(&id) { |
| 236 | self.marks.insert(id); |
| 237 | } |
| 238 | self.list.navigate(Action::Down, len); |
| 239 | } |
| 240 | } |
| 241 | Action::ClearMarks => self.marks.clear(), |
| 242 | Action::AddToPlaylist => { |
| 243 | let files = self.target_files(ctx); |
| 244 | if !files.is_empty() { |
| 245 | let popup = AddToPlaylistPopup::new(Selection::Uris(files), ctx); |
| 246 | ctx.popup(popup); |
| 247 | } |
| 248 | } |
| 249 | _ => return false, |
| 250 | } |
| 251 | true |
| 252 | } |
| 253 | |
| 254 | fn on_mpd(&mut self, event: &MpdEvent, ctx: &mut Ctx) { |
| 255 | if let MpdEvent::Reply(Reply::QueueChanges { .. }) = event |
| 256 | && !self.marks.is_empty() |
| 257 | { |
| 258 | let ids: HashSet<u32> = ctx.mpd.queue.iter().filter_map(|s| s.id).collect(); |
| 259 | self.marks.retain(|id| ids.contains(id)); |
| 260 | } |
| 261 | } |
| 262 | |
| 263 | fn on_enter(&mut self, ctx: &mut Ctx) { |
| 264 | // Start on the playing song the first time. |
| 265 | if self.list.selected(ctx.mpd.queue.len()) == Some(0) |
| 266 | && let Some(pos) = ctx.mpd.status.song |
| 267 | { |
| 268 | self.list.select(pos as usize, ctx.mpd.queue.len()); |
| 269 | } |
| 270 | } |
| 271 | |
| 272 | fn on_mouse(&mut self, event: MouseEvent, ctx: &mut Ctx) { |
| 273 | if let Some(Click::Activate(_)) = self.list.mouse(event, ctx.mpd.queue.len()) { |
| 274 | self.play_selected(ctx); |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | fn search(&mut self, query: &str, ctx: &Ctx) -> bool { |
| 279 | let texts: Vec<String> = ctx.mpd.queue.iter().map(ui::song_search_text).collect(); |
| 280 | self.list |
| 281 | .search(query, texts.iter().map(String::as_str), texts.len()); |
| 282 | true |
| 283 | } |
| 284 | } |