docs(examples): filepicker AllowedTypes example

charmbracelet · Apr 5, 2023 · 121d5bc · 121d5bc
1 parent 248eb83
commit 121d5bc
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Showing 3 changed files with 30 additions and 2 deletions.
diff --git a/examples/file-picker/main.go b/examples/file-picker/main.go
@@ -1,9 +1,11 @@
 package main
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"strings"
+	"time"
 
 	"github.com/charmbracelet/bubbles/filepicker"
 	tea "github.com/charmbracelet/bubbletea"
@@ -13,6 +15,15 @@ type model struct {
 	filepicker   filepicker.Model
 	selectedFile string
 	quitting     bool
+	err          error
+}
+
+type clearErrorMsg struct{}
+
+func clearErrorAfter(t time.Duration) tea.Cmd {
+	return tea.Tick(t, func(_ time.Time) tea.Msg {
+		return clearErrorMsg{}
+	})
 }
 
 func (m model) Init() tea.Cmd {
@@ -27,6 +38,8 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			m.quitting = true
 			return m, tea.Quit
 		}
+	case clearErrorMsg:
+		m.err = nil
 	}
 
 	var cmd tea.Cmd
@@ -38,6 +51,15 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		m.selectedFile = path
 	}
 
+	// Did the user select a disabled file?
+	// This is only necessary to display an error to the user.
+	if didSelect, path := m.filepicker.DidSelectDisabledFile(msg); didSelect {
+		// Let's clear the selectedFile and display an error.
+		m.err = errors.New(path + " is not valid.")
+		m.selectedFile = ""
+		return m, tea.Batch(cmd, clearErrorAfter(2*time.Second))
+	}
+
 	return m, cmd
 }
 
@@ -47,7 +69,9 @@ func (m model) View() string {
 	}
 	var s strings.Builder
 	s.WriteString("\n  ")
-	if m.selectedFile == "" {
+	if m.err != nil {
+		s.WriteString(m.filepicker.Styles.DisabledFile.Render(m.err.Error()))
+	} else if m.selectedFile == "" {
 		s.WriteString("Pick a file:")
 	} else {
 		s.WriteString("Selected file: " + m.filepicker.Styles.Selected.Render(m.selectedFile))

diff --git a/examples/go.mod b/examples/go.mod
@@ -3,7 +3,7 @@ module examples
 go 1.17
 
 require (
-	github.com/charmbracelet/bubbles v0.15.1-0.20230306155959-3372cf1aea2b
+	github.com/charmbracelet/bubbles v0.15.1-0.20230405171750-8865e0675a88
 	github.com/charmbracelet/bubbletea v0.23.2
 	github.com/charmbracelet/glamour v0.6.0
 	github.com/charmbracelet/harmonica v0.2.0

diff --git a/examples/go.sum b/examples/go.sum
@@ -7,8 +7,12 @@ github.com/aymanbagabas/go-osc52 v1.2.1 h1:q2sWUyDcozPLcLabEMd+a+7Ea2DitxZVN9hTx
 github.com/aymanbagabas/go-osc52 v1.2.1/go.mod h1:zT8H+Rk4VSabYN90pWyugflM3ZhpTZNC7cASDfUCdT4=
 github.com/aymerick/douceur v0.2.0 h1:Mv+mAeH1Q+n9Fr+oyamOlAkUNPWPlA8PPGR0QAaYuPk=
 github.com/aymerick/douceur v0.2.0/go.mod h1:wlT5vV2O3h55X9m7iVYN0TBM0NH/MmbLnd30/FjWUq4=
+github.com/charmbracelet/bubbles v0.15.0 h1:c5vZ3woHV5W2b8YZI1q7v4ZNQaPetfHuoHzx+56Z6TI=
+github.com/charmbracelet/bubbles v0.15.0/go.mod h1:Y7gSFbBzlMpUDR/XM9MhZI374Q+1p1kluf1uLl8iK74=
 github.com/charmbracelet/bubbles v0.15.1-0.20230306155959-3372cf1aea2b h1:K9dWJ2spDhDhIrqnchjG867djPxWWe3mwdk6RdLMfhg=
 github.com/charmbracelet/bubbles v0.15.1-0.20230306155959-3372cf1aea2b/go.mod h1:39HL8bnL0foloiENA/KvD+3mNg5SqWQV2Qh3eY/4ey4=
+github.com/charmbracelet/bubbles v0.15.1-0.20230405171750-8865e0675a88 h1:cSyCqKeoxMChc6bDNpgH9TdHenr/vrEHqSngbFWiCwA=
+github.com/charmbracelet/bubbles v0.15.1-0.20230405171750-8865e0675a88/go.mod h1:39HL8bnL0foloiENA/KvD+3mNg5SqWQV2Qh3eY/4ey4=
 github.com/charmbracelet/glamour v0.6.0 h1:wi8fse3Y7nfcabbbDuwolqTqMQPMnVPeZhDM273bISc=
 github.com/charmbracelet/glamour v0.6.0/go.mod h1:taqWV4swIMMbWALc0m7AfE9JkPSU8om2538k9ITBxOc=
 github.com/charmbracelet/harmonica v0.2.0 h1:8NxJWRWg/bzKqqEaaeFNipOu77YR5t8aSwG4pgaUBiQ=