# tui-popup
A popup widget for [Ratatui](https://ratatui.rs)
[![Crates.io badge]][tui-popup crate]
[![License badge]](./LICENSE)
[![Docs.rs badge]][tui-popup docs]
[![Deps.rs badge]][Deps.rs Dependency status]
[![Discord badge]][Ratatui Discord]
The popup widget is a simple widget that renders a popup in the center of the screen.
## Example
```rust
use ratatui::style::{Style, Stylize};
use ratatui::Frame;
use tui_popup::Popup;
fn render_popup(frame: &mut Frame) {
let popup = Popup::new("Press any key to exit")
.title("tui-popup demo")
.style(Style::new().white().on_blue());
frame.render_widget(popup, frame.area());
}
```

## State
The widget supports storing the position of the popup in `PopupState`. This is experimental and
the exact API for this will likely change.
```rust
use crossterm::event::{KeyCode, KeyEvent};
use ratatui::style::{Style, Stylize};
use ratatui::Frame;
use tui_popup::{Popup, PopupState};
fn render_stateful_popup(frame: &mut Frame, popup_state: &mut PopupState) {
let popup = Popup::new("Press any key to exit")
.title("tui-popup demo")
.style(Style::new().white().on_blue());
frame.render_stateful_widget(popup, frame.area(), popup_state);
}
fn handle_key(event: KeyEvent, state: &mut PopupState) {
match event.code {
KeyCode::Up => state.move_up(1),
KeyCode::Down => state.move_down(1),
KeyCode::Left => state.move_left(1),
KeyCode::Right => state.move_right(1),
_ => {}
}
}
```
The popup can automatically handle being moved around by the mouse, by passing in the column and
row of mouse up, down, or drag events.
```rust
use crossterm::event::{Event, MouseButton, MouseEventKind};
use tui_popup::PopupState;
fn handle_mouse(event: Event, popup_state: &mut PopupState) {
if let Event::Mouse(event) = event {
match event.kind {
MouseEventKind::Down(MouseButton::Left) => {
popup_state.mouse_down(event.column, event.row)
}
MouseEventKind::Up(MouseButton::Left) => {
popup_state.mouse_up(event.column, event.row);
}
MouseEventKind::Drag(MouseButton::Left) => {
popup_state.mouse_drag(event.column, event.row);
}
_ => {}
}
}
}
```
The popup also supports rendering arbitrary widgets by implementing [`KnownSize`] (or wrapping
them with [`KnownSizeWrapper`]). This makes it possible to support wrapping and scrolling in a
`Paragraph` widget, or scrolling any amount of widgets using
[tui-scrollview](https://crates.io/crates/tui-scrollview).
```rust
use ratatui::prelude::*;
use ratatui::text::{Span, Text};
use ratatui::widgets::Paragraph;
use tui_popup::{KnownSizeWrapper, Popup};
fn render_scrollable_popup(frame: &mut Frame, scroll: u16) {
let lines: Text = (0..10).map(|i| Span::raw(format!("Line {}", i))).collect();
let paragraph = Paragraph::new(lines).scroll((scroll, 0));
let sized_paragraph = KnownSizeWrapper {
inner: paragraph,
width: 21,
height: 5,
};
let popup = Popup::new(sized_paragraph)
.title("scroll: ↑/↓ quit: Esc")
.style(Style::new().white().on_blue());
frame.render_widget(popup, frame.area());
}
```

## Features
- [x] automatically centers
- [x] automatically sizes to content
- [x] style popup
- [x] move the popup (using state)
- [x] handle mouse events for dragging
- [x] move to position
- [ ] resize
- [ ] set border set / style
- [ ] add close button
- [ ] add nicer styling of header etc.
- [ ] configure text wrapping in body to conform to a specific size
[tui-popup crate]: https://crates.io/crates/tui-popup
[tui-popup docs]: https://docs.rs/crate/tui-popup/
[Deps.rs Dependency status]: https://deps.rs/repo/github/joshka/tui-popup
[Ratatui Discord]: https://discord.gg/pMCEU9hNEj
[Crates.io badge]: https://img.shields.io/crates/v/tui-popup?logo=rust&style=for-the-badge
[License badge]: https://img.shields.io/crates/l/tui-popup?style=for-the-badge
[Docs.rs badge]: https://img.shields.io/docsrs/tui-popup?logo=rust&style=for-the-badge
[Deps.rs badge]: https://deps.rs/repo/github/joshka/tui-popup/status.svg?style=for-the-badge
[Discord badge]: https://img.shields.io/discord/1070692720437383208?style=for-the-badge
[KnownSize]: https://docs.rs/tui-popup/latest/tui_popup/trait.KnownSize.html
[KnownSizeWrapper]: https://docs.rs/tui-popup/latest/tui_popup/struct.KnownSizeWrapper.html
## License
Copyright (c) Josh McKinney
This project is licensed under either of:
- Apache License, Version 2.0 ([LICENSE-APACHE] or <http://www.apache.org/licenses/LICENSE-2.0>)
- MIT license ([LICENSE-MIT] or <http://opensource.org/licenses/MIT>)
at your option.
## Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the
work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any
additional terms or conditions.
See [CONTRIBUTING.md](/CONTRIBUTING.md).
[LICENSE-APACHE]: /LICENSE-APACHE
[LICENSE-MIT]: /LICENSE-MIT