Create a popup screen

rust/cli_player/src/main.rs

@@ -19,9 +19,10 @@ use sea_battle_backend::data::GameRules;
 async fn run_app<B: Backend>(terminal: &mut Terminal<B>) -> Result<(), Box<dyn Error>> {
     // Temporary code
     // let res = configure_game_rules::configure_play_rules(GameRules::default(), terminal)?; // select_bot_type::select_bot_type(terminal)?;
-    let mut rules = GameRules::default();
+    /*let mut rules = GameRules::default();
     rules.boats_can_touch = true;
-    let res = set_boats_layout::set_boat_layout(&rules, terminal)?; // select_bot_type::select_bot_type(terminal)?;
+    let res = set_boats_layout::set_boat_layout(&rules, terminal)?; // select_bot_type::select_bot_type(terminal)?;*/
+    let res = popup_screen::popup_screen("Hello you are my guest today!", terminal);
     Err(io::Error::new(
         ErrorKind::Other,
         format!("result: {:?}", res),

rust/cli_player/src/ui_screens/mod.rs

@@ -1,4 +1,5 @@
 pub mod configure_game_rules;
+pub mod popup_screen;
 pub mod select_bot_type;
 pub mod select_play_mode;
 pub mod set_boats_layout;

rust/cli_player/src/ui_screens/popup_screen.rs

@@ -0,0 +1,77 @@
+use std::io;
+use std::time::{Duration, Instant};
+
+use crossterm::event;
+use crossterm::event::{Event, KeyCode};
+use tui::backend::Backend;
+use tui::layout::*;
+use tui::style::*;
+use tui::text::*;
+use tui::widgets::*;
+use tui::{Frame, Terminal};
+
+use crate::constants::*;
+use crate::ui_screens::utils::centered_rect_size;
+use crate::ui_screens::ScreenResult;
+use crate::ui_widgets::button_widget::ButtonWidget;
+
+struct PopupScreen<'a> {
+    title: &'a str,
+    msg: &'a str,
+}
+
+pub fn popup_screen<B: Backend>(
+    msg: &str,
+    terminal: &mut Terminal<B>,
+) -> io::Result<ScreenResult<()>> {
+    let mut model = PopupScreen {
+        title: "Message",
+        msg,
+    };
+
+    let mut last_tick = Instant::now();
+    loop {
+        terminal.draw(|f| ui(f, &mut model))?;
+
+        let timeout = TICK_RATE
+            .checked_sub(last_tick.elapsed())
+            .unwrap_or_else(|| Duration::from_secs(0));
+
+        if event::poll(timeout)? {
+            if let Event::Key(key) = event::read()? {
+                match key.code {
+                    KeyCode::Char('q') => return Ok(ScreenResult::Canceled),
+                    KeyCode::Enter => {
+                        return Ok(ScreenResult::Ok(()));
+                    }
+                    _ => {}
+                }
+            }
+        }
+        if last_tick.elapsed() >= TICK_RATE {
+            last_tick = Instant::now();
+        }
+    }
+}
+
+fn ui<B: Backend>(f: &mut Frame<B>, model: &mut PopupScreen) {
+    let area = centered_rect_size(model.msg.len() as u16 + 2, 5, &f.size());
+
+    let block = Block::default().borders(Borders::ALL).title(model.title);
+    f.render_widget(block, area);
+
+    // Create two chunks with equal horizontal screen space
+    let chunks = Layout::default()
+        .direction(Direction::Vertical)
+        .constraints([Constraint::Percentage(70), Constraint::Percentage(30)].as_ref())
+        .split(area.inner(&Margin {
+            horizontal: 1,
+            vertical: 1,
+        }));
+
+    let text = Paragraph::new(model.msg);
+    f.render_widget(text, chunks[0]);
+
+    let ok_button = ButtonWidget::new("OK", true);
+    f.render_widget(ok_button, chunks[1]);
+}