1 files changed, 107 insertions, 0 deletions
diff --git a/src/ui/tui_backend.rs b/src/ui/tui_backend.rs
new file mode 100644
index 0000000..516a1ca
--- /dev/null
+++ b/src/ui/tui_backend.rs
@@ -0,0 +1,107 @@
+use termion::cursor::Goto;
+use termion::event::Key;
+use termion::input::TermRead;
+use termion::raw::{IntoRawMode, RawTerminal};
+use termion::screen::AlternateScreen;
+use tui::backend::{Backend, TermionBackend};
+use tui::layout::{Constraint, Direction, Layout, Rect};
+use tui::style::{Color, Style};
+use tui::widgets::{Block, Borders, List, Paragraph, SelectableList, Text, Widget};
+use unicode_width::UnicodeWidthStr;
+
+use crate::context::JoshutoContext;
+// use crate::fs::JoshutoDirList;
+
+pub struct TuiBackend {
+    pub terminal: tui::Terminal<TermionBackend<AlternateScreen<RawTerminal<std::io::Stdout>>>>,
+}
+
+impl TuiBackend {
+    pub fn new() -> std::io::Result<Self> {
+        let stdout = std::io::stdout().into_raw_mode()?;
+        let stdout = AlternateScreen::from(stdout);
+        let backend = TermionBackend::new(stdout);
+        let mut terminal = tui::Terminal::new(backend)?;
+        Ok(Self { terminal })
+    }
+
+    pub fn render(&mut self, context: &JoshutoContext) {
+        let curr_tab = context.curr_tab_ref();
+
+        let curr_list = curr_tab.curr_list_ref();
+        let parent_list = curr_tab.parent_list_ref();
+        let child_list = curr_tab.child_list_ref();
+
+        self.terminal.draw(|mut f| {
+            let f_size = f.size();
+
+            let constraints = match child_list {
+                Some(_) => [
+                    Constraint::Ratio(1, 6),
+                    Constraint::Ratio(2, 6),
+                    Constraint::Ratio(3, 6),
+                ],
+                None => [
+                    Constraint::Ratio(1, 6),
+                    Constraint::Ratio(5, 6),
+                    Constraint::Ratio(0, 6),
+                ],
+            };
+            let layout_rect = Layout::default()
+                .direction(Direction::Horizontal)
+                .vertical_margin(1)
+                .constraints(constraints.as_ref())
+                .split(f_size);
+
+            if let Some(curr_list) = parent_list.as_ref() {
+                let list_name = "parent_list";
+                let list_style = Style::default().fg(tui::style::Color::LightBlue);
+                let selected_style = Style::default()
+                    .fg(tui::style::Color::LightBlue)
+                    .modifier(tui::style::Modifier::REVERSED);
+
+                SelectableList::default()
+                    .block(Block::default().borders(Borders::ALL).title(list_name))
+                    .items(&curr_list.contents)
+                    .style(list_style)
+                    .highlight_style(selected_style)
+                    .select(curr_list.index)
+                    .render(&mut f, layout_rect[0]);
+            }
+
+            if let Some(curr_list) = curr_list.as_ref() {
+                let list_name = "curr_list";
+                let list_style = Style::default().fg(tui::style::Color::LightBlue);
+                let selected_style = Style::default()
+                    .fg(tui::style::Color::LightBlue)
+                    .modifier(tui::style::Modifier::REVERSED);
+
+                SelectableList::default()
+                    .block(Block::default().borders(Borders::ALL).title(list_name))
+                    .items(&curr_list.contents)
+                    .style(list_style)
+                    .highlight_style(selected_style)
+                    .select(curr_list.index)
+                    .render(&mut f, layout_rect[1]);
+            }
+
+            if let Some(curr_list) = child_list.as_ref() {
+                let list_name = "child_list";
+                let list_style = Style::default().fg(tui::style::Color::LightBlue);
+                let selected_style = Style::default()
+                    .fg(tui::style::Color::LightBlue)
+                    .modifier(tui::style::Modifier::REVERSED);
+
+                SelectableList::default()
+                    .block(Block::default().borders(Borders::ALL).title(list_name))
+                    .items(&curr_list.contents)
+                    .style(list_style)
+                    .highlight_style(selected_style)
+                    .select(curr_list.index)
+                    .render(&mut f, layout_rect[2]);
+            }
+        });
+    }
+}
+
+pub fn rerender(context: &mut JoshutoContext) {}