textarea: new bindings for "go to begin" / "go to end"

textarea/textarea.go

@@ -46,6 +46,8 @@ type KeyMap struct {
  Paste key.Binding
  WordBackward key.Binding
  WordForward key.Binding
+ InputBegin key.Binding
+ InputEnd key.Binding
 
  UppercaseWordForward key.Binding
  LowercaseWordForward key.Binding
@@ -73,6 +75,8 @@ var DefaultKeyMap = KeyMap{
  LineStart: key.NewBinding(key.WithKeys("home", "ctrl+a")),
  LineEnd: key.NewBinding(key.WithKeys("end", "ctrl+e")),
  Paste: key.NewBinding(key.WithKeys("ctrl+v")),
+ InputBegin: key.NewBinding(key.WithKeys("alt+<", "ctrl+home")),
+ InputEnd: key.NewBinding(key.WithKeys("alt+>", "ctrl+end")),
 
  CapitalizeWordForward: key.NewBinding(key.WithKeys("alt+c")),
  LowercaseWordForward: key.NewBinding(key.WithKeys("alt+l")),
@@ -737,6 +741,18 @@ func (m Model) Width() int {
  return m.width
 }
 
+// moveToBegin moves the cursor to the beginning of the input.
+func (m *Model) moveToBegin() {
+ m.row = 0
+ m.SetCursor(0)
+}
+
+// moveToEnd moves the cursor to the end of the input.
+func (m *Model) moveToEnd() {
+ m.row = len(m.value) - 1
+ m.SetCursor(len(m.value[m.row]))
+}
+
 // SetWidth sets the width of the textarea to fit exactly within the given width.
 // This means that the textarea will account for the width of the prompt and
 // whether or not line numbers are being shown.
@@ -862,7 +878,10 @@ func (m Model) Update(msg tea.Msg) (Model, tea.Cmd) {
  m.CursorUp()
  case key.Matches(msg, m.KeyMap.WordBackward):
  m.wordLeft()
-
+ case key.Matches(msg, m.KeyMap.InputBegin):
+ m.moveToBegin()
+ case key.Matches(msg, m.KeyMap.InputEnd):
+ m.moveToEnd()
  case key.Matches(msg, m.KeyMap.LowercaseWordForward):
  m.lowercaseRight()
  case key.Matches(msg, m.KeyMap.UppercaseWordForward):