added key bindings bar

TODO.md

@@ -4,3 +4,4 @@
 - [ ] Syncing with gpodder api
 - [ ] Queue
 - [ ] Internal Player
+- [x] Show key bindings in a bat on the bottom

src/ui/keybindings.rs

@@ -0,0 +1,80 @@
+use std::io;
+use std::rc::Rc;
+
+use crossterm::{cursor, queue, style, style::Stylize};
+
+use crate::keymap::{Keybindings, UserAction};
+
+use super::AppColors;
+
+#[derive(Debug)]
+pub struct KeybindingsWin<'a> {
+    keymap: &'a Keybindings,
+    colors: Rc<AppColors>,
+    start_y: u16,
+    total_rows: u16,
+    total_cols: u16,
+}
+
+impl<'a> KeybindingsWin<'a> {
+    pub fn new(
+        keymap: &'a Keybindings, colors: Rc<AppColors>, start_y: u16, total_rows: u16,
+        total_cols: u16,
+    ) -> Self {
+        Self {
+            keymap,
+            colors,
+            start_y,
+            total_rows,
+            total_cols,
+        }
+    }
+
+    pub fn redraw(&self) {
+        let actions = vec![
+            (UserAction::Quit, "Quit"),
+            (UserAction::Help, "Help"),
+            (UserAction::Play, "Play"),
+            (UserAction::SyncAll, "Sync all"),
+            (UserAction::MarkPlayed, "Mark as played"),
+            (UserAction::MarkAllPlayed, "Mark all as played"),
+            (UserAction::Download, "Download"),
+            (UserAction::Delete, "Delete file"),
+            (UserAction::AddFeed, "Add feed"),
+        ];
+        let mut key_strs = Vec::new();
+        for (action, action_str) in actions {
+            let keys = self.keymap.keys_for_action(action);
+            // longest prefix is 21 chars long
+            let key_str = match keys.len() {
+                0 => format!(":{}", action_str),
+                _ => format!("{}:{}", &keys[0], action_str,),
+            };
+            key_strs.push(key_str);
+        }
+        let message0 = key_strs.join(" | ");
+        let m0len = if self.total_cols as usize >= message0.len() {
+            self.total_cols as usize - message0.len()
+        } else {
+            0
+        };
+        let message = message0 + &" ".repeat(m0len);
+        queue!(
+            io::stdout(),
+            cursor::MoveTo(0, self.start_y),
+            style::PrintStyledContent(
+                style::style(&message)
+                    .with(self.colors.normal.0)
+                    .on(self.colors.normal.1)
+            )
+        )
+        .unwrap();
+    }
+
+    pub fn resize(&mut self, total_rows: u16, total_cols: u16) {
+        self.total_rows = total_rows;
+        self.total_cols = total_cols;
+
+        self.redraw();
+    }
+}

src/ui/menu.rs

@@ -384,13 +384,15 @@ mod tests {
 
     fn create_menu(n_row: u16, n_col: u16, top_row: u16, selected: u16) -> Menu<Episode> {
         let colors = Rc::new(crate::ui::AppColors::default());
-        let titles = ["A Very Cool Episode",
+        let titles = [
+            "A Very Cool Episode",
             "This is a very long episode title but we'll get through it together",
             "An episode with le Unicodé",
             "How does an episode with emoji sound? 😉",
             "Here's another title",
             "Un titre, c'est moi!",
-            "One more just for good measure"];
+            "One more just for good measure",
+        ];
         let mut items = Vec::new();
         for (i, t) in titles.iter().enumerate() {
             let played = i % 2 == 0;

src/ui/mock_panel.rs

@@ -89,8 +89,8 @@ impl Panel {
                     self.buffer.push(String::new());
                 }
             }
-            Ordering::Less =>  self.buffer.truncate(new_len),
-            Ordering::Equal => {},
+            Ordering::Less => self.buffer.truncate(new_len),
+            Ordering::Equal => {}
         }
     }
 

src/ui/mod.rs

@@ -18,12 +18,14 @@ mod panel;
 
 pub mod colors;
 mod details_panel;
+mod keybindings;
 mod menu;
 mod notification;
 mod popup;
 
 use self::colors::AppColors;
 use self::details_panel::{Details, DetailsPanel};
+use self::keybindings::KeybindingsWin;
 use self::menu::Menu;
 use self::notification::NotifWin;
 use self::panel::Panel;
@@ -104,6 +106,7 @@ pub struct Ui<'a> {
     active_panel: ActivePanel,
     notif_win: NotifWin,
     popup_win: PopupWin<'a>,
+    keybindings_win: KeybindingsWin<'a>,
 }
 
 impl<'a> Ui<'a> {
@@ -188,7 +191,7 @@ impl<'a> Ui<'a> {
             "Podcasts".to_string(),
             0,
             colors.clone(),
-            n_row - 1,
+            n_row - 2,
             pod_col,
             0,
             (0, 0, 0, 0),
@@ -199,7 +202,7 @@ impl<'a> Ui<'a> {
             "Episodes".to_string(),
             1,
             colors.clone(),
-            n_row - 1,
+            n_row - 2,
             ep_col,
             pod_col - 1,
             (0, 0, 0, 0),
@@ -212,7 +215,7 @@ impl<'a> Ui<'a> {
                 "Details".to_string(),
                 2,
                 colors.clone(),
-                n_row - 1,
+                n_row - 2,
                 det_col,
                 pod_col + ep_col - 2,
                 (0, 1, 0, 1),
@@ -221,8 +224,11 @@ impl<'a> Ui<'a> {
             None
         };
 
-        let notif_win = NotifWin::new(colors.clone(), n_row - 1, n_row, n_col);
-        let popup_win = PopupWin::new(&config.keybindings, colors.clone(), n_row, n_col);
+        let notif_win = NotifWin::new(colors.clone(), n_row - 2, n_row, n_col);
+        let popup_win = PopupWin::new(&config.keybindings, colors.clone(), n_row - 1, n_col);
+
+        let keybindings_win =
+            KeybindingsWin::new(&config.keybindings, colors.clone(), n_row - 1, n_row, n_col);
 
         Ui {
             n_row,
@@ -235,6 +241,7 @@ impl<'a> Ui<'a> {
             active_panel: ActivePanel::PodcastMenu,
             notif_win,
             popup_win,
+            keybindings_win,
         }
     }
 
@@ -244,9 +251,11 @@ impl<'a> Ui<'a> {
         self.podcast_menu.redraw();
         self.episode_menu.redraw();
         self.podcast_menu.activate();
+
         self.update_details_panel();
 
         self.notif_win.redraw();
+        self.keybindings_win.redraw();
 
         // welcome screen if user does not have any podcasts yet
         if self.podcast_menu.items.is_empty() {
@@ -430,14 +439,14 @@ impl<'a> Ui<'a> {
 
         let (pod_col, ep_col, det_col) = Self::calculate_sizes(n_col);
 
-        self.podcast_menu.resize(n_row - 1, pod_col, 0);
-        self.episode_menu.resize(n_row - 1, ep_col, pod_col - 1);
+        self.podcast_menu.resize(n_row - 2, pod_col, 0);
+        self.episode_menu.resize(n_row - 2, ep_col, pod_col - 1);
         self.highlight_items();
 
         if self.details_panel.is_some() {
             if det_col > 0 {
                 let det = self.details_panel.as_mut().unwrap();
-                det.resize(n_row - 1, det_col, pod_col + ep_col - 2);
+                det.resize(n_row - 2, det_col, pod_col + ep_col - 2);
                 // resizing the menus may change which item is selected
                 self.update_details_panel();
             } else {
@@ -455,16 +464,17 @@ impl<'a> Ui<'a> {
                 "Details".to_string(),
                 2,
                 self.colors.clone(),
-                n_row - 1,
+                n_row - 2,
                 det_col,
                 pod_col + ep_col - 2,
                 (0, 1, 0, 1),
             ));
             self.update_details_panel();
         }
 
-        self.popup_win.resize(n_row, n_col);
-        self.notif_win.resize(n_row, n_col);
+        self.popup_win.resize(n_row - 1, n_col);
+        self.notif_win.resize(n_row - 1, n_col);
+        self.keybindings_win.resize(n_row, n_col);
     }
 
     /// Move the menu cursor around and redraw menus when necessary.

src/ui/popup.rs

@@ -151,11 +151,7 @@ impl<'a> PopupWin<'a> {
             "More details of how to customize shellcaster can be found on the Github repo readme:",
             None,
         );
-        let _ = welcome_win.write_wrap_line(
-            row + 1,
-            "https://github.com/gilcu3/shellcaster",
-            None,
-        );
+        let _ = welcome_win.write_wrap_line(row + 1, "https://github.com/gilcu3/shellcaster", None);
 
         welcome_win
     }