Added ui:prompt-keypress to support single key presses

Have also fixed a bug in ui:prompt which was keeping the script running when the prompt was being cancelled

internal/common/ui/commandctrl/cmdpacks/modui.go

@@ -2,6 +2,7 @@ package cmdpacks
 
 import (
 	"context"
+
 	tea "github.com/charmbracelet/bubbletea"
 	"lmika.dev/cmd/dynamo-browse/internal/common/ui/commandctrl"
 	"lmika.dev/cmd/dynamo-browse/internal/common/ui/events"
@@ -38,16 +39,26 @@ func (m *uiModule) uiPrompt(ctx context.Context, args ucl.CallArgs) (any, error)
 	}
 
 	resChan := make(chan string)
+	cancelChan := make(chan struct{})
 	go func() {
-		commandctrl.PostMsg(ctx, events.PromptForInput(prompt, nil, func(value string) tea.Msg {
-			resChan <- value
-			return nil
-		}))
+		commandctrl.PostMsg(ctx, events.PromptForInputMsg{
+			Prompt: prompt,
+			OnDone: func(value string) tea.Msg {
+				resChan <- value
+				return nil
+			},
+			OnCancel: func() tea.Msg {
+				cancelChan <- struct{}{}
+				return nil
+			},
+		})
 	}()
 
 	select {
 	case value := <-resChan:
 		return value, nil
+	case <-cancelChan:
+		return nil, nil
 	case <-ctx.Done():
 		return nil, ctx.Err()
 	}
@@ -75,6 +86,38 @@ func (m *uiModule) uiConfirm(ctx context.Context, args ucl.CallArgs) (any, error
 	}
 }
 
+func (m *uiModule) uiInKey(ctx context.Context, args ucl.CallArgs) (any, error) {
+	var prompt string
+	if err := args.Bind(&prompt); err != nil {
+		return nil, err
+	}
+
+	resChan := make(chan string)
+	cancelChan := make(chan struct{})
+	go func() {
+		commandctrl.PostMsg(ctx, events.PromptForKeyMsg{
+			Prompt: prompt,
+			OnDone: func(value string) tea.Msg {
+				resChan <- value
+				return nil
+			},
+			OnCancel: func() tea.Msg {
+				cancelChan <- struct{}{}
+				return nil
+			},
+		})
+	}()
+
+	select {
+	case value := <-resChan:
+		return value, nil
+	case <-cancelChan:
+		return nil, nil
+	case <-ctx.Done():
+		return nil, ctx.Err()
+	}
+}
+
 func (m *uiModule) uiPromptTable(ctx context.Context, args ucl.CallArgs) (any, error) {
 	tables, err := m.tableService.ListTables(context.Background())
 	if err != nil {
@@ -166,13 +209,14 @@ func moduleUI(
 	return ucl.Module{
 		Name: "ui",
 		Builtins: map[string]ucl.BuiltinHandler{
-			"command":      m.uiCommand,
-			"prompt":       m.uiPrompt,
-			"prompt-table": m.uiPromptTable,
-			"confirm":      m.uiConfirm,
-			"query":        m.uiQuery,
-			"filter":       m.uiFilter,
-			"bind":         m.uiBind,
+			"command":         m.uiCommand,
+			"prompt":          m.uiPrompt,
+			"prompt-table":    m.uiPromptTable,
+			"prompt-keypress": m.uiInKey,
+			"confirm":         m.uiConfirm,
+			"query":           m.uiQuery,
+			"filter":          m.uiFilter,
+			"bind":            m.uiBind,
 		},
 	}, m.ckb
 }

internal/common/ui/events/commands.go

@@ -1,9 +1,10 @@
 package events
 
 import (
+	"log"
+
 	tea "github.com/charmbracelet/bubbletea"
 	"lmika.dev/cmd/dynamo-browse/internal/dynamo-browse/services"
-	"log"
 )
 
 func Error(err error) tea.Msg {
@@ -31,10 +32,23 @@ func PromptForInput(prompt string, history services.HistoryProvider, onDone func
 	}
 }
 
+func PromptForKey(prompt string, onDone func(key string) tea.Msg) tea.Msg {
+	return PromptForKeyMsg{
+		Prompt: prompt,
+		OnDone: onDone,
+	}
+}
+
 func Confirm(prompt string, onResult func(yes bool) tea.Msg) tea.Msg {
-	return PromptForInput(prompt, nil, func(value string) tea.Msg {
-		return onResult(value == "y")
-	})
+	return PromptForInputMsg{
+		Prompt: prompt,
+		OnDone: func(value string) tea.Msg {
+			return onResult(value == "y")
+		},
+		OnCancel: func() tea.Msg {
+			return onResult(false)
+		},
+	}
 }
 
 func ConfirmYes(prompt string, onYes func() tea.Msg) tea.Msg {

internal/common/ui/events/errors.go

@@ -27,3 +27,10 @@ type PromptForInputMsg struct {
 	OnCancel      func() tea.Msg
 	OnTabComplete func(value string) (string, bool)
 }
+
+// PromptForKey indicates that the context is requesting a single key press
+type PromptForKeyMsg struct {
+	Prompt   string
+	OnDone   func(key string) tea.Msg
+	OnCancel func() tea.Msg
+}

internal/dynamo-browse/ui/teamodels/statusandprompt/model.go

@@ -1,6 +1,8 @@
 package statusandprompt
 
 import (
+	"strings"
+
 	"github.com/charmbracelet/bubbles/spinner"
 	"github.com/charmbracelet/bubbles/textinput"
 	tea "github.com/charmbracelet/bubbletea"
@@ -9,7 +11,6 @@ import (
 	"lmika.dev/cmd/dynamo-browse/internal/common/ui/events"
 	"lmika.dev/cmd/dynamo-browse/internal/dynamo-browse/ui/teamodels/layout"
 	"lmika.dev/cmd/dynamo-browse/internal/dynamo-browse/ui/teamodels/utils"
-	"strings"
 )
 
 // StatusAndPrompt is a resizing model which displays a submodel and a status bar.  When the start prompt
@@ -24,6 +25,7 @@ type StatusAndPrompt struct {
 	spinner            spinner.Model
 	spinnerVisible     bool
 	pendingInput       *pendingInputState
+	pendingKeyState    *pendingKeyState
 	textInput          textinput.Model
 	width, height      int
 	lastModeLineHeight int
@@ -85,7 +87,7 @@ func (s *StatusAndPrompt) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		}
 		s.statusMessage = msg.StatusMessage()
 	case events.PromptForInputMsg:
-		if s.pendingInput != nil {
+		if s.pendingInput != nil || s.pendingKeyState != nil {
 			// ignore, already in an input
 			return s, nil
 		}
@@ -94,7 +96,40 @@ func (s *StatusAndPrompt) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		s.textInput.Focus()
 		s.textInput.SetValue("")
 		s.pendingInput = newPendingInputState(msg)
+	case events.PromptForKeyMsg:
+		if s.pendingInput != nil || s.pendingKeyState != nil {
+			// ignore, already in an input
+			return s, nil
+		}
+
+		s.statusMessage = msg.Prompt
+		s.pendingKeyState = &pendingKeyState{msg}
 	case tea.KeyMsg:
+		if s.pendingKeyState != nil {
+			switch msg.Type {
+			case tea.KeyCtrlC, tea.KeyEsc:
+				if s.pendingKeyState.originalMsg.OnCancel != nil {
+					pendingKeyState := s.pendingKeyState
+					cc.Add(func() tea.Msg {
+						m := pendingKeyState.originalMsg.OnCancel()
+						return m
+					})
+				}
+				s.pendingKeyState = nil
+			default:
+				if s.pendingKeyState.originalMsg.OnDone != nil {
+					pendingKeyState := s.pendingKeyState
+					cc.Add(func() tea.Msg {
+						m := pendingKeyState.originalMsg.OnDone(msg.String())
+						return m
+					})
+				}
+				s.pendingKeyState = nil
+			}
+			s.statusMessage = ""
+			return s, cc.Cmd()
+		}
+
 		if s.pendingInput != nil {
 			switch msg.Type {
 			case tea.KeyCtrlC, tea.KeyEsc:
@@ -187,7 +222,7 @@ func (s *StatusAndPrompt) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 }
 
 func (s *StatusAndPrompt) InPrompt() bool {
-	return s.pendingInput != nil
+	return s.pendingInput != nil || s.pendingKeyState != nil
 }
 
 func (s *StatusAndPrompt) View() string {

internal/dynamo-browse/ui/teamodels/statusandprompt/types.go

@@ -14,3 +14,7 @@ func newPendingInputState(msg events.PromptForInputMsg) *pendingInputState {
 type PasteboardProvider interface {
 	ReadText() (string, bool)
 }
+
+type pendingKeyState struct {
+	originalMsg events.PromptForKeyMsg
+}