Add Glamour + Viewport example

examples/glamour/main.go

@@ -0,0 +1,119 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/charmbracelet/bubbles/viewport"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/glamour"
+	"github.com/muesli/termenv"
+)
+
+const content = `
+Today’s Menu
+
+| Name        | Price | Notes                           |
+| ---         | ---   | ---                             |
+| Tsukemono   | $2    | Just an appetizer               |
+| Tomato Soup | $4    | Made with San Marzano tomatoes  |
+| Okonomiyaki | $4    | Takes a few minutes to make     |
+| Curry       | $3    | We can add squash if you’d like |
+
+Seasonal Dishes
+
+| Name                 | Price | Notes              |
+| ---                  | ---   | ---                |
+| Steamed bitter melon | $2    | Not so bitter      |
+| Takoyaki             | $3    | Fun to eat         |
+| Winter squash        | $3    | Today it's pumpkin |
+
+Desserts
+
+| Name         | Price | Notes                 |
+| ---          | ---   | ---                   |
+| Dorayaki     | $4    | Looks good on rabbits |
+| Banana Split | $5    | A classic             |
+| Cream Puff   | $3    | Pretty creamy!        |
+
+All our dishes are made in-house by Karen, our chef. Most of our ingredients
+are from are our garden, or the fish market down the street.
+
+Some famous people that have eaten here lately:
+
+* [x] René Redzepi
+* [x] David Chang
+* [ ] Jiro Ono (maybe some day)
+
+Bon appétit!
+`
+
+var term = termenv.ColorProfile()
+
+type example struct {
+	viewport viewport.Model
+}
+
+func newExample() (*example, error) {
+	vp := viewport.Model{Width: 78, Height: 20}
+
+	renderer, err := glamour.NewTermRenderer(glamour.WithStylePath("notty"))
+	if err != nil {
+		return nil, err
+	}
+
+	str, err := renderer.Render(content)
+	if err != nil {
+		return nil, err
+	}
+
+	vp.SetContent(str)
+
+	return &example{
+		viewport: vp,
+	}, nil
+}
+
+func (e example) Init() tea.Cmd {
+	return nil
+}
+
+func (e example) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		e.viewport.Width = msg.Width
+		return e, nil
+
+	case tea.KeyMsg:
+		switch msg.String() {
+		case "q", "ctrl+c":
+			return e, tea.Quit
+		default:
+			vp, _ := viewport.Update(msg, e.viewport)
+			e.viewport = vp
+		}
+	}
+
+	return e, nil
+}
+
+func (e example) View() string {
+	return viewport.View(e.viewport) + e.helpView()
+}
+
+func (e example) helpView() string {
+	return termenv.String("\n  ↑/↓: Navigate • q: Quit\n").Foreground(term.Color("241")).String()
+}
+
+func main() {
+	model, err := newExample()
+	if err != nil {
+		fmt.Println("Could not intialize Bubble Tea model:", err)
+		os.Exit(1)
+	}
+
+	if err := tea.NewProgram(model).Start(); err != nil {
+		fmt.Println("Bummer, there's been an error:", err)
+		os.Exit(1)
+	}
+}

examples/go.mod

@@ -5,6 +5,7 @@ go 1.13
 require (
 	github.com/charmbracelet/bubbles v0.6.2-0.20201015225236-9c10cd058678
 	github.com/charmbracelet/bubbletea v0.12.0
+	github.com/charmbracelet/glamour v0.2.0 // indirect
 	github.com/fogleman/ease v0.0.0-20170301025033-8da417bf1776
 	github.com/lucasb-eyer/go-colorful v1.0.3
 	github.com/mattn/go-runewidth v0.0.9

examples/go.sum

@@ -1,28 +1,56 @@
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