feat(examples): show how to move the cursor

examples/user_input.rs

@@ -12,16 +12,19 @@ extern crate failure;
 ///   messages
 extern crate termion;
 extern crate tui;
+extern crate unicode_width;
 
 #[allow(dead_code)]
 mod util;
 
-use std::io;
+use std::io::{self, Write};
 
+use unicode_width::UnicodeWidthStr;
 use termion::event::Key;
 use termion::input::MouseTerminal;
 use termion::raw::IntoRawMode;
 use termion::screen::AlternateScreen;
+use termion::cursor::Goto;
 use tui::backend::TermionBackend;
 use tui::layout::{Constraint, Direction, Layout, Rect};
 use tui::style::{Color, Style};
@@ -57,7 +60,6 @@ fn main() -> Result<(), failure::Error> {
     let stdout = AlternateScreen::from(stdout);
     let backend = TermionBackend::new(stdout);
     let mut terminal = Terminal::new(backend)?;
-    terminal.hide_cursor()?;
 
     // Setup event handlers
     let events = Events::new();
@@ -94,6 +96,9 @@ fn main() -> Result<(), failure::Error> {
                 .render(&mut f, chunks[1]);
         })?;
 
+        // Put the cursor back inside the input box
+        write!(terminal.backend_mut(), "{}", Goto(4 + app.input.width() as u16, 4))?;
+
         // Handle input
         match events.next()? {
             Event::Input(input) => match input {