feat: support Alt prefix

README.md

@@ -161,14 +161,30 @@ Switch pop out window.
 
 ### Customize key map
 
+You can overwrite the following key
+
+- `translate`: Translate from source to destination window.
+- `swap_language`: Swap language.
+- `clear`: Clear all text in source of translation window.
+- `copy_selected`: Copy selected text.
+- `copy_source`: Copy all text in source of translation window.
+- `copy_destination`: Copy all text in destination of translation window.
+- `tts_source`: Play text to speech on source of translation window.
+- `tts_destination`: Play text to speech on destination of translation window.
+- `stop_tts`: Stop playing text to speech.
+- `toggle_transparent`: Toggle transparent.
+- `toggle_below`: Toggle Definition/Example & Part of speech.
+
+For key to combine with `Ctrl`, the value can be `"C-space"`, `"C-\\"`, `"C-]"`, `"C-^"`, `"C-_"` or `"C-a"` to `"C-z"`.
+
+⚠️ Note, don't use `"C-c"`, `<C-c>` is for exit program.
+
+For key to combine with `Alt`, the value can be `"A-space"` or `"A-"` + the character you want.
+
+Or you can use function key, the value can be `"F1"` to `"F64"`.
+
 See the example in [keymap.yaml](example/keymap.yaml) file. This file should located at `$XDG_CONFIG_HOME/gtt/keymap.yaml` or `$HOME/.config/gtt/keymap.yaml`.
 
-For key to combine with `Ctrl`, value can be `" "` (Space), `"\\"` or `'\'` (backslash), `"]"`, `"^"`, `"_"`, `"a"` to `"z"` (lower case).
-
-Or the function key, value can be `"F1"` to `"F64"`.
-
-⚠️ Note, don't use `"c"`, `<C-c>` is for exit program.
-
 ## Credit
 
 [soimort/translate-shell](https://github.com/soimort/translate-shell),

config.go

@@ -6,7 +6,6 @@ import (
 
 	"github.com/eeeXun/gtt/internal/style"
 	"github.com/eeeXun/gtt/internal/translate"
-	"github.com/eeeXun/gtt/internal/ui"
 	config "github.com/spf13/viper"
 )
 
@@ -17,17 +16,17 @@ func configInit() {
 		themeConfig       = config.New()
 		keyMapConfig      = config.New()
 		defaultKeyMaps    = map[string]string{
-			"translate":          "j",
-			"swap_language":      "s",
-			"clear":              "q",
-			"copy_selected":      "y",
-			"copy_source":        "g",
-			"copy_destination":   "r",
-			"tts_source":         "o",
-			"tts_destination":    "p",
-			"stop_tts":           "x",
-			"toggle_transparent": "t",
-			"toggle_below":       "\\",
+			"translate":          "C-j",
+			"swap_language":      "C-s",
+			"clear":              "C-q",
+			"copy_selected":      "C-y",
+			"copy_source":        "C-g",
+			"copy_destination":   "C-r",
+			"tts_source":         "C-o",
+			"tts_destination":    "C-p",
+			"stop_tts":           "C-x",
+			"toggle_transparent": "C-t",
+			"toggle_below":       "C-\\",
 		}
 		defaultConfig = map[string]interface{}{
 			"hide_below":                    false,
@@ -123,14 +122,14 @@ func configInit() {
 	if err := keyMapConfig.ReadInConfig(); err == nil {
 		for action, key := range defaultKeyMaps {
 			if keyMapConfig.Get(action) == nil {
-				keyMaps[action] = ui.NewKeyData(key)
+				keyMaps[action] = key
 			} else {
-				keyMaps[action] = ui.NewKeyData(keyMapConfig.GetString(action))
+				keyMaps[action] = keyMapConfig.GetString(action)
 			}
 		}
 	} else {
 		for action, key := range defaultKeyMaps {
-			keyMaps[action] = ui.NewKeyData(key)
+			keyMaps[action] = key
 		}
 	}
 	// Setup

example/keymap.yaml

@@ -1,27 +1,34 @@
-# This file should located at $XDG_CONFIG_HOME/gtt/keymap.yaml or $HOME/.config/gtt/keymap.yaml
-# For key to combine with Ctrl, value can be " " (Space), "\\" or '\' (backslash), "]", "^", "_", "a" to "z" (lower case)
-# ⚠️ Note, don't use "c", <C-c> is for exit program
-# Or the function key, value can be "F1" to "F64"
+# This file should located at $XDG_CONFIG_HOME/gtt/keymap.yaml or $HOME/.config/gtt/keymap.yaml.
 
-# Translate, <C-j>
-translate: "j"
+# For key to combine with Ctrl, the value can be "C-space", "C-\\", "C-]", "C-^", "C-_" or "C-a" to "C-z".
+# ⚠️ Note, don't use "C-c", <C-c> is for exit program.
+
+# For key to combine with Alt, the value can be "A-space" or "A-" + the character you want.
+
+# Or you can use function key, the value can be "F1" to "F64".
+
+
+# The following is the default key map
+
+# Translate from source to destination window, <C-j>
+translate: "C-j"
 # Swap language, <C-s>
-swap_language: "s"
+swap_language: "C-s"
 # Clear all text in source of translation window, <C-q>
-clear: "q"
+clear: "C-q"
 # Copy selected text, <C-y>
-copy_selected: "y"
+copy_selected: "C-y"
 # Copy all text in source of translation window, <C-g>
-copy_source: "g"
+copy_source: "C-g"
 # Copy all text in destination of translation window, <C-r>
-copy_destination: "r"
+copy_destination: "C-r"
 # Play text to speech on source of translation window, <C-o>
-tts_source: "o"
+tts_source: "C-o"
 # Play text to speech on destination of translation window, <C-p>
-tts_destination: "p"
+tts_destination: "C-p"
 # Stop playing text to speech, <C-x>
-stop_tts: "x"
+stop_tts: "C-x"
 # Toggle transparent, <C-t>
-toggle_transparent: "t"
+toggle_transparent: "C-t"
 # Toggle Definition/Example & Part of speech, <C-\>
-toggle_below: "\\"
+toggle_below: "C-\\"

example/theme.yaml

@@ -1,6 +1,6 @@
-# This file should located at $XDG_CONFIG_HOME/gtt/theme.yaml or $HOME/.config/gtt/theme.yaml
-# You have to provide theme name. e.g. tokyonight
-# And colors: bg, fg, gray, red, green, yellow, blue, purple, cyan, orange
+# This file should located at $XDG_CONFIG_HOME/gtt/theme.yaml or $HOME/.config/gtt/theme.yaml.
+# You have to provide theme name. e.g. tokyonight.
+# And colors: bg, fg, gray, red, green, yellow, blue, purple, cyan, orange.
 # bg is for background color
 # fg is for foreground color
 # gray is for selected color

internal/ui/key.go

@@ -1,66 +0,0 @@
-package ui
-
-import (
-	"strconv"
-
-	"github.com/gdamore/tcell/v2"
-)
-
-type keyData struct {
-	name string
-	key  tcell.Key
-}
-
-type KeyMaps map[string]keyData
-
-func NewKeyData(keyStr string) keyData {
-	var (
-		name string
-		key  tcell.Key
-	)
-
-	if len(keyStr) > 1 && keyStr[0] == 'F' {
-		// function key, can be F1 to F64
-		name = keyStr
-		fNum, err := strconv.Atoi(keyStr[1:])
-		if err != nil {
-			panic(err)
-		}
-		key = tcell.KeyF1 + tcell.Key(fNum-1)
-	} else {
-		switch keyStr[0] {
-		case ' ':
-			name = "C-Space"
-			key = tcell.KeyCtrlSpace
-		case '\\':
-			name = "C-\\"
-			key = tcell.KeyCtrlBackslash
-		case ']':
-			name = "C-]"
-			key = tcell.KeyCtrlRightSq
-		case '^':
-			name = "C-^"
-			key = tcell.KeyCtrlCarat
-		case '_':
-			name = "C-_"
-			key = tcell.KeyCtrlUnderscore
-		default:
-			// This should be a to z
-			name = "C-" + keyStr
-			key = tcell.KeyCtrlA + tcell.Key(keyStr[0]-'a')
-		}
-	}
-
-	return keyData{
-		name: name,
-		key:  key,
-	}
-}
-
-func (k keyData) GetName() string {
-	return k.name
-}
-
-func (k keyData) GetKey() tcell.Key {
-	return k.key
-}

key.go

@@ -0,0 +1,121 @@
+package main
+
+import (
+	"github.com/gdamore/tcell/v2"
+)
+
+var keyNames = map[tcell.Key]string{
+	tcell.KeyEsc:            "Esc",
+	tcell.KeyF1:             "F1",
+	tcell.KeyF2:             "F2",
+	tcell.KeyF3:             "F3",
+	tcell.KeyF4:             "F4",
+	tcell.KeyF5:             "F5",
+	tcell.KeyF6:             "F6",
+	tcell.KeyF7:             "F7",
+	tcell.KeyF8:             "F8",
+	tcell.KeyF9:             "F9",
+	tcell.KeyF10:            "F10",
+	tcell.KeyF11:            "F11",
+	tcell.KeyF12:            "F12",
+	tcell.KeyF13:            "F13",
+	tcell.KeyF14:            "F14",
+	tcell.KeyF15:            "F15",
+	tcell.KeyF16:            "F16",
+	tcell.KeyF17:            "F17",
+	tcell.KeyF18:            "F18",
+	tcell.KeyF19:            "F19",
+	tcell.KeyF20:            "F20",
+	tcell.KeyF21:            "F21",
+	tcell.KeyF22:            "F22",
+	tcell.KeyF23:            "F23",
+	tcell.KeyF24:            "F24",
+	tcell.KeyF25:            "F25",
+	tcell.KeyF26:            "F26",
+	tcell.KeyF27:            "F27",
+	tcell.KeyF28:            "F28",
+	tcell.KeyF29:            "F29",
+	tcell.KeyF30:            "F30",
+	tcell.KeyF31:            "F31",
+	tcell.KeyF32:            "F32",
+	tcell.KeyF33:            "F33",
+	tcell.KeyF34:            "F34",
+	tcell.KeyF35:            "F35",
+	tcell.KeyF36:            "F36",
+	tcell.KeyF37:            "F37",
+	tcell.KeyF38:            "F38",
+	tcell.KeyF39:            "F39",
+	tcell.KeyF40:            "F40",
+	tcell.KeyF41:            "F41",
+	tcell.KeyF42:            "F42",
+	tcell.KeyF43:            "F43",
+	tcell.KeyF44:            "F44",
+	tcell.KeyF45:            "F45",
+	tcell.KeyF46:            "F46",
+	tcell.KeyF47:            "F47",
+	tcell.KeyF48:            "F48",
+	tcell.KeyF49:            "F49",
+	tcell.KeyF50:            "F50",
+	tcell.KeyF51:            "F51",
+	tcell.KeyF52:            "F52",
+	tcell.KeyF53:            "F53",
+	tcell.KeyF54:            "F54",
+	tcell.KeyF55:            "F55",
+	tcell.KeyF56:            "F56",
+	tcell.KeyF57:            "F57",
+	tcell.KeyF58:            "F58",
+	tcell.KeyF59:            "F59",
+	tcell.KeyF60:            "F60",
+	tcell.KeyF61:            "F61",
+	tcell.KeyF62:            "F62",
+	tcell.KeyF63:            "F63",
+	tcell.KeyF64:            "F64",
+	tcell.KeyCtrlA:          "C-a",
+	tcell.KeyCtrlB:          "C-b",
+	tcell.KeyCtrlC:          "C-c",
+	tcell.KeyCtrlD:          "C-d",
+	tcell.KeyCtrlE:          "C-e",
+	tcell.KeyCtrlF:          "C-f",
+	tcell.KeyCtrlG:          "C-g",
+	tcell.KeyCtrlJ:          "C-j",
+	tcell.KeyCtrlK:          "C-k",
+	tcell.KeyCtrlL:          "C-l",
+	tcell.KeyCtrlN:          "C-n",
+	tcell.KeyCtrlO:          "C-o",
+	tcell.KeyCtrlP:          "C-p",
+	tcell.KeyCtrlQ:          "C-q",
+	tcell.KeyCtrlR:          "C-r",
+	tcell.KeyCtrlS:          "C-s",
+	tcell.KeyCtrlT:          "C-t",
+	tcell.KeyCtrlU:          "C-u",
+	tcell.KeyCtrlV:          "C-v",
+	tcell.KeyCtrlW:          "C-w",
+	tcell.KeyCtrlX:          "C-x",
+	tcell.KeyCtrlY:          "C-y",
+	tcell.KeyCtrlZ:          "C-z",
+	tcell.KeyCtrlSpace:      "C-space",
+	tcell.KeyCtrlUnderscore: "C-_",
+	tcell.KeyCtrlRightSq:    "C-]",
+	tcell.KeyCtrlBackslash:  "C-\\",
+	tcell.KeyCtrlCarat:      "C-^",
+}
+
+func getKeyName(event *tcell.EventKey) string {
+	var keyName string
+	key := event.Key()
+
+	if key == tcell.KeyRune {
+		if event.Modifiers() == tcell.ModAlt {
+			switch event.Rune() {
+			case ' ':
+				keyName = "A-space"
+			default:
+				keyName = "A-" + string(event.Rune())
+			}
+		}
+	} else {
+		keyName = keyNames[key]
+	}
+
+	return keyName
+}

main.go

@@ -21,7 +21,7 @@ var (
 	// UI style
 	uiStyle = style.NewStyle()
 	// keyMaps
-	keyMaps = make(ui.KeyMaps)
+	keyMaps = make(map[string]string)
 	// UI
 	app                 = tview.NewApplication()
 	srcInput            = tview.NewTextArea()

ui.go

@@ -10,6 +10,13 @@ import (
 	"github.com/rivo/tview"
 )
 
+type Item struct {
+	item       tview.Primitive
+	fixedSize  int
+	proportion int
+	focus      bool
+}
+
 const (
 	popOutWindowHeight int    = 20
 	langStrMaxLength   int    = 32
@@ -45,13 +52,6 @@ const (
 	Switch pop out window.`
 )
 
-type Item struct {
-	item       tview.Primitive
-	fixedSize  int
-	proportion int
-	focus      bool
-}
-
 func updateTranslateWindow() {
 	if uiStyle.HideBelow {
 		translateWindow.RemoveItem(translateBelowWidget)
@@ -165,17 +165,17 @@ func updateNonConfigColor() {
 	keyMapMenu.SetTextColor(uiStyle.ForegroundColor()).
 		SetText(fmt.Sprintf(keyMapText,
 			fmt.Sprintf("%.6x", uiStyle.HighLightColor().TrueColor().Hex()),
-			keyMaps["translate"].GetName(),
-			keyMaps["swap_language"].GetName(),
-			keyMaps["clear"].GetName(),
-			keyMaps["copy_selected"].GetName(),
-			keyMaps["copy_src"].GetName(),
-			keyMaps["copy_dst"].GetName(),
-			keyMaps["tts_src"].GetName(),
-			keyMaps["tts_dst"].GetName(),
-			keyMaps["stop_tts"].GetName(),
-			keyMaps["toggle_transparent"].GetName(),
-			keyMaps["toggle_below"].GetName(),
+			keyMaps["translate"],
+			keyMaps["swap_language"],
+			keyMaps["clear"],
+			keyMaps["copy_selected"],
+			keyMaps["copy_source"],
+			keyMaps["copy_destination"],
+			keyMaps["tts_source"],
+			keyMaps["tts_destination"],
+			keyMaps["stop_tts"],
+			keyMaps["toggle_transparent"],
+			keyMaps["toggle_below"],
 		)).
 		SetBorderColor(uiStyle.HighLightColor()).
 		SetTitleColor(uiStyle.HighLightColor())
@@ -373,9 +373,14 @@ func uiInit() {
 		// https://github.com/golang/go/discussions/56010
 		widget := widget
 		widget.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
-			key := event.Key()
-			switch key {
-			case keyMaps["copy_selected"].GetKey():
+			keyName := getKeyName(event)
+
+			if len(keyName) == 0 {
+				return event
+			}
+
+			switch keyName {
+			case keyMaps["copy_selected"]:
 				// copy selected text
 				text, _, _ := widget.GetSelection()
 
@@ -437,10 +442,14 @@ func uiInit() {
 }
 
 func mainPageHandler(event *tcell.EventKey) *tcell.EventKey {
-	key := event.Key()
+	keyName := getKeyName(event)
 
-	switch key {
-	case keyMaps["toggle_transparent"].GetKey():
+	if len(keyName) == 0 {
+		return event
+	}
+
+	switch keyName {
+	case keyMaps["toggle_transparent"]:
 		// Toggle transparent
 		uiStyle.Transparent = !uiStyle.Transparent
 		// The following will trigger transparentDropDown SetDoneFunc
@@ -448,7 +457,7 @@ func mainPageHandler(event *tcell.EventKey) *tcell.EventKey {
 			IndexOf(strconv.FormatBool(uiStyle.Transparent),
 				[]string{"true", "false"}))
 		return nil
-	case keyMaps["toggle_below"].GetKey():
+	case keyMaps["toggle_below"]:
 		// Toggle Hide below window
 		uiStyle.HideBelow = !uiStyle.HideBelow
 		// The following will trigger hideBelowDropDown SetDoneFunc
@@ -462,14 +471,14 @@ func mainPageHandler(event *tcell.EventKey) *tcell.EventKey {
 }
 
 func translateWindowHandler(event *tcell.EventKey) *tcell.EventKey {
-	key := event.Key()
+	keyName := getKeyName(event)
 
-	switch key {
-	case tcell.KeyEsc:
+	switch keyName {
+	case "Esc":
 		mainPage.ShowPage("langPopOut")
 		app.SetFocus(langCycle.GetCurrentUI())
 		return nil
-	case keyMaps["translate"].GetKey():
+	case keyMaps["translate"]:
 		message := srcInput.GetText()
 		// Only translate when message exist
 		if len(message) > 0 {
@@ -483,10 +492,10 @@ func translateWindowHandler(event *tcell.EventKey) *tcell.EventKey {
 			}
 		}
 		return nil
-	case keyMaps["clear"].GetKey():
+	case keyMaps["clear"]:
 		srcInput.SetText("", true)
 		return nil
-	case keyMaps["copy_src"].GetKey():
+	case keyMaps["copy_source"]:
 		// copy all text in Input
 		text := srcInput.GetText()
 
@@ -495,7 +504,7 @@ func translateWindowHandler(event *tcell.EventKey) *tcell.EventKey {
 			CopyToClipboard(text)
 		}
 		return nil
-	case keyMaps["copy_dst"].GetKey():
+	case keyMaps["copy_destination"]:
 		// copy all text in Output
 		text := dstOutput.GetText(false)
 
@@ -504,7 +513,7 @@ func translateWindowHandler(event *tcell.EventKey) *tcell.EventKey {
 			CopyToClipboard(text[:len(text)-1])
 		}
 		return nil
-	case keyMaps["swap_language"].GetKey():
+	case keyMaps["swap_language"]:
 		translator.SwapLang()
 		updateCurrentLang()
 		srcText := srcInput.GetText()
@@ -517,7 +526,7 @@ func translateWindowHandler(event *tcell.EventKey) *tcell.EventKey {
 		}
 		dstOutput.SetText(srcText)
 		return nil
-	case keyMaps["tts_src"].GetKey():
+	case keyMaps["tts_source"]:
 		// Play text to speech on source of translation window.
 		if translator.LockAvailable() {
 			message := srcInput.GetText()
@@ -535,7 +544,7 @@ func translateWindowHandler(event *tcell.EventKey) *tcell.EventKey {
 
 		}
 		return nil
-	case keyMaps["tts_dst"].GetKey():
+	case keyMaps["tts_destination"]:
 		// Play text to speech on destination of translation window.
 		if translator.LockAvailable() {
 			message := dstOutput.GetText(false)
@@ -552,7 +561,7 @@ func translateWindowHandler(event *tcell.EventKey) *tcell.EventKey {
 			}
 		}
 		return nil
-	case keyMaps["stop_tts"].GetKey():
+	case keyMaps["stop_tts"]:
 		// Stop play sound
 		translator.StopTTS()
 		return nil