fix(keymaps): some kind of vim-alike keymaps (#510)

remapped <kbd>i</kbd> to <kbd>?</kbd> for help
added <kbd>up</kbd>: <kbd>k</kbd>
added <kbd>down</kbd>: <kbd>j</kbd>
added search deletion keymap: <kbd>ctrl-u</kbd>
remapped show qr-code from <kbd>k</kbd> to <kbd>Space</kbd>
<kbd>Esc</kbd> will quit search mode, not app

Author: replydev

src/interface/app.rs

@@ -288,12 +288,7 @@ impl<'a> App<'a> {
             String::new()
         };
 
-        text.push_str(
-            "
-        
-        Press I to get help
-        ",
-        );
+        text.push_str("\n\n         Press '?' to get help\n");
         let paragraph = Paragraph::new(text)
             .block(Block::default().title("Code info").borders(Borders::ALL))
             .style(Style::default().fg(Color::White).bg(Color::Reset))

src/interface/handlers/main_window.rs

@@ -17,9 +17,11 @@ use super::{handle_exit, show_popup};
 
 pub(super) fn main_handler(key_event: KeyEvent, app: &mut App) {
     match key_event.code {
-        // exit application on ESC
-        KeyCode::Esc => {
-            handle_exit(app);
+        // exit application on ESC or Q
+        KeyCode::Esc | KeyCode::Char('q' | 'Q') => {
+            if app.focus != Focus::SearchBar {
+                handle_exit(app);
+            }
         }
         // exit application on Ctrl-D
         KeyCode::Char('d' | 'D' | 'c') => {
@@ -38,21 +40,15 @@ pub(super) fn main_handler(key_event: KeyEvent, app: &mut App) {
                 );
             }
         }
-        // exit application on Q
-        KeyCode::Char('q' | 'Q') => {
-            if app.focus != Focus::SearchBar {
-                handle_exit(app);
-            }
-        }
 
         // Move into the table
-        KeyCode::Up => {
+        KeyCode::Up | KeyCode::Char('k') => {
             app.print_percentage = true;
             app.current_page = Main;
             app.table.previous();
         }
 
-        KeyCode::Down => {
+        KeyCode::Down | KeyCode::Char('j') => {
             app.print_percentage = true;
             app.current_page = Main;
             app.table.next();
@@ -68,19 +64,19 @@ pub(super) fn main_handler(key_event: KeyEvent, app: &mut App) {
             handle_counter_switch(app, false);
         }
 
-        KeyCode::Char('k' | 'K') => handle_switch_page(app, Qrcode),
+        KeyCode::Char(' ') => handle_switch_page(app, Qrcode),
 
-        KeyCode::Char('i' | 'I') => {
+        KeyCode::Char('?') => {
             let info_text = String::from(
                 "
             Press:
             d -> Delete selected code
             + -> Increment the HOTP counter
             - -> Decrement the HOTP counter
-            k -> Show QRCode of the selected element
+            Space -> Show QRCode of the selected element
             Enter -> Copy the OTP Code to the clipboard
-            CTRL-F -> Search codes
-            CTRL-W -> Clear the search query
+            CTRL-F | '/' -> Search codes
+            CTRL-W | CTRL-U -> Clear the search query
             q, CTRL-D, Esc -> Exit the application
             ",
             );

src/interface/handlers/search_bar.rs

@@ -8,13 +8,13 @@ pub(super) fn search_bar_handler(key_event: KeyEvent, app: &mut App) {
     match key_event.code {
         KeyCode::Char(c) => {
             if key_event.modifiers == KeyModifiers::CONTROL {
-                match c {
-                    'f' | 'F' => {
+                match c.to_ascii_lowercase() {
+                    'f' => {
                         app.search_query.clear();
                         app.focus = Focus::MainPage;
                     }
-                    'c' | 'C' => handle_exit(app),
-                    'w' | 'W' => app.search_query.clear(),
+                    'c' => handle_exit(app),
+                    'w' | 'u' => app.search_query.clear(),
                     _ => {}
                 }
             } else {