Add Ctrl+S key bind for closing application printing the input expres…

…sion
paololazzari · Oct 27, 2023 · be8a802 · be8a802
1 parent 00b82ac
commit be8a802
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Showing 3 changed files with 32 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -39,11 +39,16 @@ If you want to use `play` in read-only mode, thus avoding any file changes (such
 $ docker run --rm -it -v "$(pwd)":/play:ro plazzari/play:latest <program>
 ```
 
+To exit the application, use `Ctrl+C`.
+
+To exit the application printing the input expression to stdout, use `Ctrl+S`.
 
 ## Key bindings
 
 | Component       | Key           | Description |
 |-----------------|---------------|-------------|
+| Any                  | `Ctrl+C`      | Exit application |
+| Any                  | `Ctrl+S`      | Exit application and print input expression to stdout |
 | Command Options      | `Tab`         | Move focus to positional arguments  |
 | Command Options      | `Shift+Tab`   | Move focus to file picker |
 | Command Options      | `Enter`       | Move focus to output |

diff --git a/cmd/core.go b/cmd/core.go
@@ -13,7 +13,7 @@ import (
 	"golang.org/x/term"
 )
 
-const version = "0.3.0"
+const version = "0.3.1"
 
 func completionCommand() *cobra.Command {
 	return &cobra.Command{

diff --git a/src/ui/ui.go b/src/ui/ui.go
@@ -2,6 +2,7 @@ package ui
 
 import (
 	"bufio"
+	"fmt"
 
 	"io/ioutil"
 	"os"
@@ -569,6 +570,31 @@ func (ui *UI) InitUI() error {
 	ui.configFileView()
 	ui.configFlex()
 
+	// on Ctrl+S shut down the application and print the expression to stdout
+	ui.App.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
+		key := event.Key()
+		switch key {
+		case tcell.KeyCtrlS:
+			endOptionsSeparator, _, _, _ := ui.endOptionsSeparator()
+			endArgumentsSeparator, _, _, _ := ui.endArgumentsSeparator()
+
+			var sb strings.Builder
+			sb.WriteString(ui.Label)
+			sb.WriteString(" ")
+			sb.WriteString(ui.OptionsInput.GetText())
+			sb.WriteString(endOptionsSeparator.GetText(false))
+			sb.WriteString(ui.OpeningQuoteText.GetText(false))
+			sb.WriteString(ui.ArgumentsInput.GetText())
+			sb.WriteString(ui.ClosingQuoteText.GetText(false))
+			sb.WriteString(endArgumentsSeparator.GetText(false))
+			sb.WriteString(strings.Join(ui.FileOptionsInputSlice, " "))
+
+			ui.App.Stop()
+			fmt.Println(sb.String())
+		}
+		return event
+	})
+
 	ui.App.SetRoot(ui.Flex, true).
 		SetFocus(ui.OptionsInput)