feat(picker): new package

go.mod

@@ -27,6 +27,7 @@ require (
 	github.com/mattn/go-runewidth v0.0.16 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/sahilm/fuzzy v0.1.1
 	github.com/spf13/pflag v1.0.6 // indirect
 	github.com/twmb/murmur3 v1.1.8 // indirect
 	go4.org v0.0.0-20230225012048-214862532bf5 // indirect

go.sum

@@ -102,8 +102,6 @@ github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
-github.com/rivo/tview v0.0.0-20241227133733-17b7edb88c57 h1:LmsF7Fk5jyEDhJk0fYIqdWNuTxSyid2W42A0L2YWjGE=
-github.com/rivo/tview v0.0.0-20241227133733-17b7edb88c57/go.mod h1:02iFIz7K/A9jGCvrizLPvoqr4cEIx7q54RH5Qudkrss=
 github.com/rivo/tview v0.0.0-20250325173046-7b72abf45814 h1:pJIO3sp+rkDbJTeqqpe2Oihq3hegiM5ASvsd6S0pvjg=
 github.com/rivo/tview v0.0.0-20250325173046-7b72abf45814/go.mod h1:02iFIz7K/A9jGCvrizLPvoqr4cEIx7q54RH5Qudkrss=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
@@ -113,6 +111,8 @@ github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUc
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/rwcarlsen/goexif v0.0.0-20190401172101-9e8deecbddbd/go.mod h1:hPqNNc0+uJM6H+SuU8sEs5K5IQeKccPqeSjfgcKGgPk=
+github.com/sahilm/fuzzy v0.1.1 h1:ceu5RHF8DGgoi+/dR5PsECjCDH1BE3Fnmpo7aVXOdRA=
+github.com/sahilm/fuzzy v0.1.1/go.mod h1:VFvziUEIMCrT6A6tw2RFIXPXXmzXbOsSHF0DOI8ZK9Y=
 github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966 h1:JIAuq3EEf9cgbU6AtGPK4CTG3Zf6CKMNqf0MHTggAUA=
 github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966/go.mod h1:sUM3LWHvSMaG192sy56D9F7CNvL7jUJVXoqM1QKLnog=
 github.com/spf13/cobra v1.9.1 h1:CXSaggrXdbHK9CF+8ywj8Amf7PBRmPCOJugH954Nnlo=

internal/picker/item.go

@@ -0,0 +1,23 @@
+package picker
+
+type Item struct {
+	text     string
+	selected func()
+}
+
+func NewItem(text string, selected func()) *Item {
+	return &Item{
+		text:     text,
+		selected: selected,
+	}
+}
+
+type Items []*Item
+
+func (is Items) String(i int) string {
+	return is[i].text
+}
+
+func (is Items) Len() int {
+	return len(is)
+}

internal/picker/picker.go

@@ -0,0 +1,57 @@
+package picker
+
+import (
+	"github.com/rivo/tview"
+	"github.com/sahilm/fuzzy"
+)
+
+type Picker struct {
+	*tview.Flex
+	Input *tview.InputField
+	List  *tview.List
+
+	app   *tview.Application
+	items Items
+}
+
+func New(app *tview.Application, items Items) *Picker {
+	p := &Picker{
+		Flex:  tview.NewFlex(),
+		Input: tview.NewInputField(),
+		List:  tview.NewList(),
+
+		app:   app,
+		items: items,
+	}
+
+	// Render all of the items initially.
+	p.changed("")
+
+	p.Input.SetChangedFunc(p.changed)
+	p.List.ShowSecondaryText(false).SetFocusFunc(func() {
+		app.SetFocus(p.Input)
+	})
+	p.Flex.
+		SetDirection(tview.FlexRow).
+		AddItem(p.Input, 3, 1, true).
+		AddItem(p.List, 0, 1, false)
+	return p
+}
+
+func (p *Picker) changed(text string) {
+	var fuzzied Items
+	if text == "" {
+		fuzzied = append(fuzzied, p.items...)
+	} else {
+		matches := fuzzy.FindFrom(text, p.items)
+		for _, match := range matches {
+			fuzzied = append(fuzzied, p.items[match.Index])
+		}
+	}
+
+	p.List.Clear()
+
+	for _, item := range fuzzied {
+		p.List.AddItem(item.text, "", 0, item.selected)
+	}
+}