feat: Mouse scroll

tui/src/confirmation.rs

@@ -2,7 +2,7 @@ use std::borrow::Cow;
 
 use crate::{float::FloatContent, hint::Shortcut};
 
-use crossterm::event::{KeyCode, KeyEvent};
+use crossterm::event::{KeyCode, KeyEvent, MouseEvent, MouseEventKind};
 use ratatui::{
     layout::Alignment,
     prelude::*,
@@ -84,6 +84,19 @@ impl FloatContent for ConfirmPrompt {
         frame.render_widget(List::new(paths_text), inner_area);
     }
 
+    fn handle_mouse_event(&mut self, event: &MouseEvent) -> bool {
+        match event.kind {
+            MouseEventKind::ScrollDown => {
+                self.scroll_down();
+            }
+            MouseEventKind::ScrollUp => {
+                self.scroll_up();
+            }
+            _ => {}
+        }
+        false
+    }
+
     fn handle_key_event(&mut self, key: &KeyEvent) -> bool {
         use KeyCode::*;
         self.status = match key.code {

tui/src/float.rs

@@ -1,4 +1,4 @@
-use crossterm::event::{KeyCode, KeyEvent};
+use crossterm::event::{KeyCode, KeyEvent, MouseEvent};
 use ratatui::{
     layout::{Constraint, Direction, Layout, Rect},
     Frame,
@@ -9,6 +9,7 @@ use crate::hint::Shortcut;
 pub trait FloatContent {
     fn draw(&mut self, frame: &mut Frame, area: Rect);
     fn handle_key_event(&mut self, key: &KeyEvent) -> bool;
+    fn handle_mouse_event(&mut self, key: &MouseEvent) -> bool;
     fn is_finished(&self) -> bool;
     fn get_shortcut_list(&self) -> (&str, Box<[Shortcut]>);
 }
@@ -53,6 +54,10 @@ impl<Content: FloatContent + ?Sized> Float<Content> {
         self.content.draw(frame, popup_area);
     }
 
+    pub fn handle_mouse_event(&mut self, event: &MouseEvent) {
+        self.content.handle_mouse_event(event);
+    }
+
     // Returns true if the floating window is finished.
     pub fn handle_key_event(&mut self, key: &KeyEvent) -> bool {
         match key.code {

tui/src/floating_text.rs

@@ -8,7 +8,7 @@ use crate::{float::FloatContent, hint::Shortcut};
 
 use linutil_core::Command;
 
-use crossterm::event::{KeyCode, KeyEvent};
+use crossterm::event::{KeyCode, KeyEvent, MouseEvent, MouseEventKind};
 
 use ratatui::{
     layout::Rect,
@@ -264,6 +264,17 @@ impl FloatContent for FloatingText {
         frame.render_widget(list, inner_area);
     }
 
+    fn handle_mouse_event(&mut self, event: &MouseEvent) -> bool {
+        match event.kind {
+            MouseEventKind::ScrollDown => self.scroll_down(),
+            MouseEventKind::ScrollUp => self.scroll_up(),
+            MouseEventKind::ScrollLeft => self.scroll_left(),
+            MouseEventKind::ScrollRight => self.scroll_right(),
+            _ => {}
+        }
+        false
+    }
+
     fn handle_key_event(&mut self, key: &KeyEvent) -> bool {
         use KeyCode::*;
         match key.code {

tui/src/main.rs

@@ -15,7 +15,7 @@ use std::{
 use crate::theme::Theme;
 use clap::Parser;
 use crossterm::{
-    event::{self, DisableMouseCapture, Event, KeyEventKind},
+    event::{self, DisableMouseCapture, EnableMouseCapture, Event, KeyEventKind},
     style::ResetColor,
     terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
     ExecutableCommand,
@@ -41,6 +41,8 @@ fn main() -> io::Result<()> {
     let mut state = AppState::new(args.theme, args.override_validation);
 
     stdout().execute(EnterAlternateScreen)?;
+    stdout().execute(EnableMouseCapture)?;
+
     enable_raw_mode()?;
     let mut terminal = Terminal::new(CrosstermBackend::new(stdout()))?;
     terminal.clear()?;
@@ -70,15 +72,22 @@ fn run(
 
         // It's guaranteed that the `read()` won't block when the `poll()`
         // function returns `true`
-        if let Event::Key(key) = event::read()? {
-            // We are only interested in Press and Repeat events
-            if key.kind != KeyEventKind::Press && key.kind != KeyEventKind::Repeat {
-                continue;
-            }
+        match event::read()? {
+            Event::Key(key) => {
+                if key.kind != KeyEventKind::Press && key.kind != KeyEventKind::Repeat {
+                    continue;
+                }
 
-            if !state.handle_key(&key) {
-                return Ok(());
+                if !state.handle_key(&key) {
+                    return Ok(());
+                }
+            }
+            Event::Mouse(mouse_event) => {
+                if !state.handle_mouse(&mouse_event) {
+                    return Ok(());
+                }
             }
+            _ => {}
         }
     }
 }

tui/src/running_command.rs

@@ -1,5 +1,5 @@
 use crate::{float::FloatContent, hint::Shortcut};
-use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
+use crossterm::event::{KeyCode, KeyEvent, KeyModifiers, MouseEvent, MouseEventKind};
 use linutil_core::Command;
 use oneshot::{channel, Receiver};
 use portable_pty::{
@@ -91,6 +91,18 @@ impl FloatContent for RunningCommand {
         frame.render_widget(pseudo_term, area);
     }
 
+    fn handle_mouse_event(&mut self, event: &MouseEvent) -> bool {
+        match event.kind {
+            MouseEventKind::ScrollUp => {
+                self.scroll_offset = self.scroll_offset.saturating_add(1);
+            }
+            MouseEventKind::ScrollDown => {
+                self.scroll_offset = self.scroll_offset.saturating_sub(1);
+            }
+            _ => {}
+        }
+        true
+    }
     /// Handle key events of the running command "window". Returns true when the "window" should be
     /// closed
     fn handle_key_event(&mut self, key: &KeyEvent) -> bool {

tui/src/state.rs

@@ -7,13 +7,13 @@ use crate::{
     running_command::RunningCommand,
     theme::Theme,
 };
-use crossterm::event::{KeyCode, KeyEvent, KeyEventKind, KeyModifiers};
+use crossterm::event::{KeyCode, KeyEvent, KeyEventKind, KeyModifiers, MouseEvent, MouseEventKind};
 use ego_tree::NodeId;
 use linutil_core::{ListNode, Tab};
 #[cfg(feature = "tips")]
 use rand::Rng;
 use ratatui::{
-    layout::{Alignment, Constraint, Direction, Flex, Layout},
+    layout::{Alignment, Constraint, Direction, Flex, Layout, Position, Rect},
     style::{Style, Stylize},
     text::{Line, Span, Text},
     widgets::{Block, Borders, List, ListState, Paragraph},
@@ -62,6 +62,7 @@ pub struct AppState {
     drawable: bool,
     #[cfg(feature = "tips")]
     tip: String,
+    areas: Option<Areas>,
 }
 
 pub enum Focus {
@@ -78,6 +79,11 @@ pub struct ListEntry {
     pub has_children: bool,
 }
 
+pub struct Areas {
+    tab_list: Rect,
+    list: Rect,
+}
+
 enum SelectedItem {
     UpDir,
     Directory,
@@ -104,6 +110,7 @@ impl AppState {
             drawable: false,
             #[cfg(feature = "tips")]
             tip: get_random_tip(),
+            areas: None,
         };
 
         state.update_items();
@@ -282,6 +289,11 @@ impl AppState {
             .split(horizontal[0]);
         frame.render_widget(label, left_chunks[0]);
 
+        self.areas = Some(Areas {
+            tab_list: left_chunks[1],
+            list: horizontal[1],
+        });
+
         let tabs = self
             .tabs
             .iter()
@@ -416,6 +428,59 @@ impl AppState {
         frame.render_widget(keybind_para, vertical[1]);
     }
 
+    pub fn handle_mouse(&mut self, event: &MouseEvent) -> bool {
+        if !self.drawable {
+            return true;
+        }
+
+        if matches!(self.focus, Focus::TabList | Focus::List) {
+            let position = Position::new(event.column, event.row);
+            let mouse_in_tab_list = self.areas.as_ref().unwrap().tab_list.contains(position);
+            let mouse_in_list = self.areas.as_ref().unwrap().list.contains(position);
+
+            match event.kind {
+                MouseEventKind::Moved => {
+                    if mouse_in_list {
+                        self.focus = Focus::List
+                    } else if mouse_in_tab_list {
+                        self.focus = Focus::TabList
+                    }
+                }
+                MouseEventKind::ScrollDown => {
+                    if mouse_in_tab_list {
+                        if self.current_tab.selected().unwrap() != self.tabs.len() - 1 {
+                            self.current_tab.select_next();
+                        }
+                        self.refresh_tab();
+                    } else if mouse_in_list {
+                        self.selection.select_next()
+                    }
+                }
+                MouseEventKind::ScrollUp => {
+                    if mouse_in_tab_list {
+                        if self.current_tab.selected().unwrap() != 0 {
+                            self.current_tab.select_previous();
+                        }
+                        self.refresh_tab();
+                    } else if mouse_in_list {
+                        self.selection.select_previous()
+                    }
+                }
+                _ => {}
+            }
+        }
+        match &mut self.focus {
+            Focus::FloatingWindow(float) => {
+                float.content.handle_mouse_event(event);
+            }
+            Focus::ConfirmationPrompt(confirm) => {
+                confirm.content.handle_mouse_event(event);
+            }
+            _ => {}
+        }
+        true
+    }
+
     pub fn handle_key(&mut self, key: &KeyEvent) -> bool {
         // This should be defined first to allow closing
         // the application even when not drawable ( If terminal is small )