forked from Mirrors/bubbletea
97 lines
2.1 KiB
Markdown
97 lines
2.1 KiB
Markdown
# Tea
|
|
|
|
The fun, functional way to build terminal apps. A Go framework based on
|
|
[The Elm Architecture][elm]. 茶!
|
|
|
|
⚠️ This project is a pre-release! The API is subject to change a little.
|
|
|
|
## Simple example
|
|
|
|
```go
|
|
package main
|
|
|
|
// A simple program that counts down from 5 and then exits.
|
|
|
|
import (
|
|
"fmt"
|
|
"log"
|
|
"time"
|
|
"github.com/charmbracelet/tea"
|
|
)
|
|
|
|
type model int
|
|
|
|
type tickMsg time.Time
|
|
|
|
func main() {
|
|
p := tea.NewProgram(init, update, view, subscriptions)
|
|
if err := p.Start(); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// Listen for messages and update the model accordingly
|
|
func update(msg tea.Msg, mdl tea.Model) (tea.Model, tea.Cmd) {
|
|
m, _ := mdl.(model)
|
|
|
|
switch msg.(type) {
|
|
case tickMsg:
|
|
m--
|
|
if m == 0 {
|
|
return m, tea.Quit
|
|
}
|
|
}
|
|
return m, nil
|
|
}
|
|
|
|
// Render to the terminal
|
|
func view(mdl tea.Model) string {
|
|
m, _ := mdl.(model)
|
|
return fmt.Sprintf("Hi. This program will exit in %d seconds...\n", m)
|
|
}
|
|
|
|
// Subscribe to events
|
|
func subscriptions(_ tea.Model) tea.Subs {
|
|
return tea.Subs{
|
|
"tick": time.Every(time.Second, func(t time.Time) tea.Msg {
|
|
return tickMsg(t)
|
|
},
|
|
}
|
|
}
|
|
```
|
|
|
|
Hungry for more? See the [other examples][examples].
|
|
|
|
[examples]: https://github.com/charmbracelet/tea/tree/master/examples
|
|
|
|
## Other Resources
|
|
|
|
* [Tea Party](https://github.com/charmbracelet/teaparty): a collection of Tea
|
|
components.
|
|
* [Termenv](https://github.com/muesli/termenv): advanced ANSI style and color
|
|
support for your terminal applications. Very useful when rendering your
|
|
views.
|
|
* [Reflow](https://github.com/muesli/reflow): a collection of ANSI-aware text
|
|
formatting tools. Also useful for view rendering.
|
|
|
|
|
|
## Acknowledgments
|
|
|
|
Heavily inspired by both [The Elm Architecture][elm] by Evan Czaplicki et al.
|
|
and [go-tea][gotea] by TJ Holowaychuk.
|
|
|
|
[elm]: https://guide.elm-lang.org/architecture/
|
|
[gotea]: https://github.com/tj/go-tea
|
|
|
|
## License
|
|
|
|
[MIT](https://github.com/charmbracelet/tea/raw/master/LICENSE)
|
|
|
|
***
|
|
|
|
Part of [Charm](https://charm.sh).
|
|
|
|
<img alt="the Charm logo" src="https://stuff.charm.sh/charm-logotype.png" width="400px">
|
|
|
|
Charm热爱开源!
|