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Cycle through cursor modes in textinputs example per Bubbles v0.8.0
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@meowgorithm
meowgorithm committed Jun 2, 2021
1 parent 035d2ab commit 0b83cc5
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2 changes: 1 addition & 1 deletion examples/go.mod
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Expand Up @@ -3,7 +3,7 @@ module examples
go 1.13

require (
github.com/charmbracelet/bubbles v0.7.7
github.com/charmbracelet/bubbles v0.8.0
github.com/charmbracelet/bubbletea v0.13.1
github.com/charmbracelet/glamour v0.2.0
github.com/charmbracelet/lipgloss v0.1.2
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4 changes: 2 additions & 2 deletions examples/go.sum
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Expand Up @@ -9,8 +9,8 @@ github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897 h1:p9Sln00KOTlrYkx
github.com/alecthomas/repr v0.0.0-20180818092828-117648cd9897/go.mod h1:xTS7Pm1pD1mvyM075QCDSRqH6qRLXylzS24ZTpRiSzQ=
github.com/atotto/clipboard v0.1.2 h1:YZCtFu5Ie8qX2VmVTBnrqLSiU9XOWwqNRmdT3gIQzbY=
github.com/atotto/clipboard v0.1.2/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
github.com/charmbracelet/bubbles v0.7.7 h1:eVsAYiAJskifXaqHpPzbOZS1srMaTnuiTazC6uukBbA=
github.com/charmbracelet/bubbles v0.7.7/go.mod h1:5WX1sSSjNCgCrzvRMN/z23HxvWaa+AI16Ch0KPZPeDs=
github.com/charmbracelet/bubbles v0.8.0 h1:+l2op90Ag37Vn+30O1hbg/0wBl+e+sxHhgY1F/rvdHs=
github.com/charmbracelet/bubbles v0.8.0/go.mod h1:5WX1sSSjNCgCrzvRMN/z23HxvWaa+AI16Ch0KPZPeDs=
github.com/charmbracelet/glamour v0.2.0 h1:mTgaiNiumpqTZp3qVM6DH9UB0NlbY17wejoMf1kM8Pg=
github.com/charmbracelet/glamour v0.2.0/go.mod h1:UA27Kwj3QHialP74iU6C+Gpc8Y7IOAKupeKMLLBURWM=
github.com/charmbracelet/lipgloss v0.1.2 h1:D+LUMg34W7n2pkuMrevKVxT7HXqnoRHm7IoomkX3/ZU=
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201 changes: 101 additions & 100 deletions examples/textinputs/main.go
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Expand Up @@ -6,170 +6,171 @@ package main
import (
"fmt"
"os"
"strings"

"github.com/charmbracelet/bubbles/textinput"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)

var (
focusedStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("205"))
blurredButtonStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("240"))
noStyle = lipgloss.NewStyle()

focusedSubmitButton = "[ " + focusedStyle.Render("Submit") + " ]"
blurredSubmitButton = "[ " + blurredButtonStyle.Render("Submit") + " ]"
focusedStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("205"))
blurredStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("240"))
cursorStyle = focusedStyle.Copy()
noStyle = lipgloss.NewStyle()
helpStyle = blurredStyle.Copy()
cursorModeHelpStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("244"))

focusedButton = focusedStyle.Copy().Render("[ Submit ]")
blurredButton = fmt.Sprintf("[ %s ]", blurredStyle.Render("Submit"))
)

func main() {
if err := tea.NewProgram(initialModel()).Start(); err != nil {
fmt.Printf("could not start program: %s\n", err)
os.Exit(1)
}
}

type model struct {
index int
nameInput textinput.Model
emailInput textinput.Model
passwordInput textinput.Model
submitButton string
focusIndex int
inputs []textinput.Model
cursorMode textinput.CursorMode
}

func initialModel() model {
name := textinput.NewModel()
name.Placeholder = "Nickname"
name.Focus()
name.PromptStyle = focusedStyle
name.TextStyle = focusedStyle
name.CharLimit = 32

email := textinput.NewModel()
email.Placeholder = "Email"
email.CharLimit = 64
m := model{
inputs: make([]textinput.Model, 3),
}

password := textinput.NewModel()
password.Placeholder = "Password"
password.EchoMode = textinput.EchoPassword
password.EchoCharacter = '•'
password.CharLimit = 32
var t textinput.Model
for i := range m.inputs {
t = textinput.NewModel()
t.CursorStyle = cursorStyle
t.CharLimit = 32

switch i {
case 0:
t.Placeholder = "Nickname"
t.Focus()
t.PromptStyle = focusedStyle
t.TextStyle = focusedStyle
case 1:
t.Placeholder = "Email"
t.CharLimit = 64
case 2:
t.Placeholder = "Password"
t.EchoMode = textinput.EchoPassword
t.EchoCharacter = '•'
}

return model{0, name, email, password, blurredSubmitButton}
m.inputs[i] = t
}

return m
}
func (m model) Init() tea.Cmd {
return textinput.Blink
}

func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
var cmd tea.Cmd

switch msg := msg.(type) {
case tea.KeyMsg:
switch msg.String() {
case "ctrl+c", "esc":
return m, tea.Quit

// Cycle between inputs
case "tab", "shift+tab", "enter", "up", "down":

inputs := []textinput.Model{
m.nameInput,
m.emailInput,
m.passwordInput,
// Change cursor mode
case "ctrl+r":
m.cursorMode++
if m.cursorMode > textinput.CursorHide {
m.cursorMode = textinput.CursorBlink
}
cmds := make([]tea.Cmd, len(m.inputs))
for i := range m.inputs {
cmds[i] = m.inputs[i].SetCursorMode(m.cursorMode)
}
return m, tea.Batch(cmds...)

// Set focus to next input
case "tab", "shift+tab", "enter", "up", "down":
s := msg.String()

// Did the user press enter while the submit button was focused?
// If so, exit.
if s == "enter" && m.index == len(inputs) {
if s == "enter" && m.focusIndex == len(m.inputs) {
return m, tea.Quit
}

// Cycle indexes
if s == "up" || s == "shift+tab" {
m.index--
m.focusIndex--
} else {
m.index++
m.focusIndex++
}

if m.index > len(inputs) {
m.index = 0
} else if m.index < 0 {
m.index = len(inputs)
if m.focusIndex > len(m.inputs) {
m.focusIndex = 0
} else if m.focusIndex < 0 {
m.focusIndex = len(m.inputs)
}

for i := 0; i <= len(inputs)-1; i++ {
if i == m.index {
cmds := make([]tea.Cmd, len(m.inputs))
for i := 0; i <= len(m.inputs)-1; i++ {
if i == m.focusIndex {
// Set focused state
inputs[i].Focus()
inputs[i].PromptStyle = focusedStyle
inputs[i].TextStyle = focusedStyle
cmds[i] = m.inputs[i].Focus()
m.inputs[i].PromptStyle = focusedStyle
m.inputs[i].TextStyle = focusedStyle
continue
}
// Remove focused state
inputs[i].Blur()
inputs[i].PromptStyle = noStyle
inputs[i].TextStyle = noStyle
m.inputs[i].Blur()
m.inputs[i].PromptStyle = noStyle
m.inputs[i].TextStyle = noStyle
}

m.nameInput = inputs[0]
m.emailInput = inputs[1]
m.passwordInput = inputs[2]

if m.index == len(inputs) {
m.submitButton = focusedSubmitButton
} else {
m.submitButton = blurredSubmitButton
}

return m, nil
return m, tea.Batch(cmds...)
}
}

// Handle character input and blinks
m, cmd = updateInputs(msg, m)
// Handle character input and blinking
cmd := m.updateInputs(msg)

return m, cmd
}

// Pass messages and models through to text input components. Only text inputs
// with Focus() set will respond, so it's safe to simply update all of them
// here without any further logic.
func updateInputs(msg tea.Msg, m model) (model, tea.Cmd) {
var (
cmd tea.Cmd
cmds []tea.Cmd
)

m.nameInput, cmd = m.nameInput.Update(msg)
cmds = append(cmds, cmd)
func (m *model) updateInputs(msg tea.Msg) tea.Cmd {
var cmds = make([]tea.Cmd, len(m.inputs))

m.emailInput, cmd = m.emailInput.Update(msg)
cmds = append(cmds, cmd)

m.passwordInput, cmd = m.passwordInput.Update(msg)
cmds = append(cmds, cmd)
// Only text inputs with Focus() set will respond, so it's safe to simply
// update all of them here without any further logic.
for i := range m.inputs {
m.inputs[i], cmds[i] = m.inputs[i].Update(msg)
}

return m, tea.Batch(cmds...)
return tea.Batch(cmds...)
}

func (m model) View() string {
s := "\n"
var b strings.Builder

inputs := []string{
m.nameInput.View(),
m.emailInput.View(),
m.passwordInput.View(),
for i := range m.inputs {
b.WriteString(m.inputs[i].View())
if i < len(m.inputs)-1 {
b.WriteRune('\n')
}
}

for i := 0; i < len(inputs); i++ {
s += inputs[i]
if i < len(inputs)-1 {
s += "\n"
}
button := &blurredButton
if m.focusIndex == len(m.inputs) {
button = &focusedButton
}
fmt.Fprintf(&b, "\n\n%s\n\n", *button)

s += "\n\n" + m.submitButton + "\n"
return s
b.WriteString(helpStyle.Render("cursor mode is "))
b.WriteString(cursorModeHelpStyle.Render(m.cursorMode.String()))
b.WriteString(helpStyle.Render(" (ctrl+r to change style)"))

return b.String()
}

func main() {
if err := tea.NewProgram(initialModel()).Start(); err != nil {
fmt.Printf("could not start program: %s\n", err)
os.Exit(1)
}
}

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