add type alias for Key

pkg/gui/keybindings.go

@@ -76,7 +76,7 @@ var keyMapReversed = map[gocui.Key]string{
 	gocui.MouseWheelDown: "mouse wheel down",
 }
 
-var keymap = map[string]interface{}{
+var keymap = map[string]types.Key{
 	"<c-a>":       gocui.KeyCtrlA,
 	"<c-b>":       gocui.KeyCtrlB,
 	"<c-c>":       gocui.KeyCtrlC,
@@ -153,7 +153,7 @@ func (gui *Gui) getKeyDisplay(name string) string {
 	return GetKeyDisplay(key)
 }
 
-func GetKeyDisplay(key interface{}) string {
+func GetKeyDisplay(key types.Key) string {
 	keyInt := 0
 
 	switch key := key.(type) {
@@ -170,7 +170,7 @@ func GetKeyDisplay(key interface{}) string {
 	return fmt.Sprintf("%c", keyInt)
 }
 
-func (gui *Gui) getKey(key string) interface{} {
+func (gui *Gui) getKey(key string) types.Key {
 	runeCount := utf8.RuneCountInString(key)
 	if runeCount > 1 {
 		binding := keymap[strings.ToLower(key)]

pkg/gui/services/custom_commands/client.go

@@ -23,7 +23,7 @@ func NewClient(
 	git *commands.GitCommand,
 	contexts *context.ContextTree,
 	helpers *helpers.Helpers,
-	getKey func(string) interface{},
+	getKey func(string) types.Key,
 ) *Client {
 	sessionStateLoader := NewSessionStateLoader(contexts, helpers)
 	handlerCreator := NewHandlerCreator(c, os, git, sessionStateLoader)

pkg/gui/services/custom_commands/keybinding_creator.go

@@ -14,10 +14,10 @@ import (
 // KeybindingCreator takes a custom command along with its handler and returns a corresponding keybinding
 type KeybindingCreator struct {
 	contexts *context.ContextTree
-	getKey   func(string) interface{}
+	getKey   func(string) types.Key
 }
 
-func NewKeybindingCreator(contexts *context.ContextTree, getKey func(string) interface{}) *KeybindingCreator {
+func NewKeybindingCreator(contexts *context.ContextTree, getKey func(string) types.Key) *KeybindingCreator {
 	return &KeybindingCreator{
 		contexts: contexts,
 		getKey:   getKey,

pkg/gui/types/context.go

@@ -97,7 +97,7 @@ type OnFocusOpts struct {
 type ContextKey string
 
 type KeybindingsOpts struct {
-	GetKey func(key string) interface{}
+	GetKey func(key string) Key
 	Config config.KeybindingConfig
 	Guards KeybindingGuards
 }

pkg/gui/types/keybindings.go

@@ -2,6 +2,8 @@ package types
 
 import "github.com/jesseduffield/gocui"
 
+type Key interface{} // FIXME: find out how to get `gocui.Key | rune`
+
 // Binding - a keybinding mapping a key and modifier to a handler. The keypress
 // is only handled if the given view has focus, or handled globally if the view
 // is ""
@@ -9,7 +11,7 @@ type Binding struct {
 	ViewName    string
 	Contexts    []string
 	Handler     func() error
-	Key         interface{} // FIXME: find out how to get `gocui.Key | rune`
+	Key         Key
 	Modifier    gocui.Modifier
 	Description string
 	Alternative string