feat: implemented command mode mappings, needs review and tests

internal/action/action.go

@@ -72,6 +72,12 @@ type Model interface {
 	InsertKeys() []string
 	SetInsertKeys(keys []string)
 
+	// Command mode
+	Command() string
+	SetCommand(cmd string)
+	CommandCursor() int
+	SetCommandCursor(cur int)
+
 	// Settings
 	Settings() Settings
 

internal/action/command.go

@@ -0,0 +1,112 @@
+package action
+
+import (
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+type ExitCommandMode struct{}
+
+func (a ExitCommandMode) Execute(m Model) tea.Cmd {
+	m.SetCommandCursor(0)
+	m.SetCommand("")
+	m.SetMode(NormalMode)
+	return nil
+}
+
+type InsertCommandChar struct {
+	Char string
+}
+
+func (a InsertCommandChar) Execute(m Model) tea.Cmd {
+	cur := m.CommandCursor()
+	cmd := m.Command()
+
+	m.SetCommand(cmd[:cur] + a.Char + cmd[cur:])
+	m.SetCommandCursor(cur + 1)
+	return nil
+}
+
+type CommandBackspace struct{}
+
+func (a CommandBackspace) Execute(m Model) tea.Cmd {
+	cur := m.CommandCursor()
+	cmd := m.Command()
+
+	if cur > 0 {
+		m.SetCommand(cmd[:cur-1] + cmd[cur:])
+		m.SetCommandCursor(cur - 1)
+	}
+
+	return nil
+}
+
+type CommandDelete struct{}
+
+func (a CommandDelete) Execute(m Model) tea.Cmd {
+	cur := m.CommandCursor()
+	cmd := m.Command()
+
+	if cur < len(cmd)-1 {
+		m.SetCommand(cmd[:cur+1] + cmd[cur+2:])
+	} else if cur == len(cmd)-1 {
+		// last text char, delete it
+		m.SetCommand(cmd[:cur] + cmd[cur+1:])
+	} else if cur == len(cmd) && cur > 0 {
+		// if at end, we do backspace op
+		m.SetCommand(cmd[:cur-1] + cmd[cur:])
+		m.SetCommandCursor(cur - 1)
+	}
+
+	return nil
+}
+
+type CommandDeletePreviousWord struct{}
+
+func (a CommandDeletePreviousWord) Execute(m Model) tea.Cmd {
+	cur := m.CommandCursor()
+	cmd := m.Command()
+
+	if cur > 0 {
+		newCur := cur
+
+		// If we are on puncuation, we should just skip them all and quit
+		if isPunctuation(cmd[newCur-1]) {
+			for newCur > 0 && isPunctuation(cmd[newCur-1]) {
+				newCur--
+			}
+
+			m.SetCommand(cmd[:newCur] + cmd[cur:])
+			m.SetCommandCursor(newCur)
+
+			return nil
+		}
+
+		// Skip whitespace immediately before the cursor
+		for newCur > 0 && (cmd[newCur-1] == ' ' || cmd[newCur-1] == '\t') {
+			newCur--
+		}
+
+		// Skip the word characters before the cursor
+		for newCur > 0 && isWordChar(cmd[newCur-1]) {
+			newCur--
+		}
+
+		// Delete everything from newCur up to cur in one operation
+		m.SetCommand(cmd[:newCur] + cmd[cur:])
+		m.SetCommandCursor(newCur)
+	}
+
+	return nil
+}
+
+type CommandExecute struct{}
+
+func (a CommandExecute) Execute(m Model) tea.Cmd {
+	// TODO: Implement
+
+	m.SetCommandCursor(0)
+	m.SetCommand("")
+	m.SetMode(NormalMode)
+
+	return nil
+}

internal/action/misc.go

@@ -14,6 +14,8 @@ type EnterComandMode struct{}
 
 func (a EnterComandMode) Execute(m Model) tea.Cmd {
 	m.SetMode(CommandMode)
+	m.SetCommand("")
+	m.SetCommandCursor(0)
 	return nil
 }
 

internal/editor/model.go

@@ -21,7 +21,6 @@ type Model struct {
 	mode    action.Mode
 	win_h   int
 	win_w   int
-	command string
 	input   *input.Handler
 
 	// Insert repetition
@@ -29,6 +28,10 @@ type Model struct {
 	insertKeys   []string
 	insertAction action.Action
 
+	// Command mode
+	command       string
+	commandCursor int
+
 	// Settings
 	settings action.Settings
 }
@@ -133,6 +136,29 @@ func (m *Model) SetInsertKeys(keys []string) {
 	m.insertKeys = keys
 }
 
+// Command mode
+func (m *Model) Command() string {
+	return m.command
+}
+
+func (m *Model) SetCommand(cmd string) {
+	m.command = cmd
+}
+
+func (m *Model) CommandCursor() int {
+	return m.commandCursor
+}
+
+func (m *Model) SetCommandCursor(cur int) {
+	if cur < 0 {
+		m.commandCursor = 0
+	} else if cur >= len(m.command) {
+		m.commandCursor = len(m.command)
+	} else {
+		m.commandCursor = cur
+	}
+}
+
 // Settings
 func (m *Model) Settings() action.Settings {
 	return m.settings

internal/editor/style.go

@@ -17,7 +17,7 @@ func (m Model) cursorStyle() lipgloss.Style {
 		// Bar/underline for insert mode
 		return lipgloss.NewStyle().Underline(true)
 	case action.CommandMode:
-		return lipgloss.NewStyle()
+		return lipgloss.NewStyle().Reverse(true)
 	default:
 		return lipgloss.NewStyle().Reverse(true)
 	}

internal/editor/update.go

@@ -1,7 +1,6 @@
 package editor
 
 import (
-	"git.gophernest.net/azpect/TextEditor/internal/action"
 	tea "github.com/charmbracelet/bubbletea"
 )
 
@@ -20,25 +19,28 @@ func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			return m, tea.Quit
 		}
 
-		switch m.mode {
-		case action.NormalMode,
-			action.InsertMode,
-			action.VisualMode,
-			action.VisualBlockMode,
-			action.VisualLineMode:
-			cmd = m.input.Handle(&m, msg.String())
+		cmd = m.input.Handle(&m, msg.String())
 
-			// The only one left to migrate!
-		case action.CommandMode:
-			switch msg.String() {
-			case "esc":
-				m.mode = action.NormalMode
-				m.command = ""
-
-			default:
-				m.command += msg.String()
-			}
-		}
+		// 	switch m.mode {
+		// 	case action.NormalMode,
+		// 		action.InsertMode,
+		// 		action.VisualMode,
+		// 		action.VisualBlockMode,
+		// 		action.VisualLineMode:
+		// 		cmd = m.input.Handle(&m, msg.String())
+		//
+		// 		// The only one left to migrate!
+		// 	case action.CommandMode:
+		// 		switch msg.String() {
+		// 		case "esc":
+		// 			m.mode = action.NormalMode
+		// 			m.command = ""
+		//
+		// 		default:
+		// 			m.command += msg.String()
+		// 			m.SetCommandCursor(len(m.command))
+		// 		}
+		// 	}
 	}
 
 	// Keep cursor in view after any update

internal/editor/view.go

@@ -158,7 +158,21 @@ func drawStatusBar(m Model) string {
 
 func leftBar(m Model) (bar string) {
 	if m.Mode() == action.CommandMode {
-		bar = fmt.Sprintf(":%s", m.command)
+		bar = ":"
+		cmd := m.Command()
+		cur := m.CommandCursor()
+		for i := 0; i < len(cmd); i++ {
+			if i == cur {
+				bar += m.cursorStyle().Render(string(cmd[i]))
+			} else {
+				bar += string(cmd[i])
+			}
+		}
+		// Cursor at end of command
+		if cur >= len(cmd) {
+			bar += m.cursorStyle().Render(" ")
+		}
+		// bar = fmt.Sprintf("%s  %d", bar, cur)
 	} else {
 		bar = fmt.Sprintf(" %s", m.Mode().ToString())
 	}

internal/input/handler.go

@@ -29,9 +29,10 @@ type Handler struct {
 	pending     string // partial key sequence (e.g., "g" waiting for second key)
 
 	// Keymaps
-	normalKeymap *Keymap
-	visualKeymap *Keymap
-	insertKeymap *Keymap
+	normalKeymap  *Keymap
+	visualKeymap  *Keymap
+	insertKeymap  *Keymap
+	commandKeymap *Keymap
 
 	currentKeymap *Keymap
 }
@@ -42,6 +43,7 @@ func NewHandler() *Handler {
 		normalKeymap:  NewNormalKeymap(),
 		visualKeymap:  NewVisualKeymap(),
 		insertKeymap:  NewInsertKeymap(),
+		commandKeymap: NewCommandKeymap(),
 		currentKeymap: nil,
 	}
 }
@@ -58,9 +60,12 @@ func (h *Handler) Handle(m action.Model, key string) tea.Cmd {
 		return nil
 	}
 
-	// Insert mode bypasses the normal state machine entirely
-	if m.Mode() == action.InsertMode {
+	// Insert/command mode bypasses the normal state machine entirely
+	switch m.Mode() {
+	case action.InsertMode:
 		return h.handleInsertKey(m, key)
+	case action.CommandMode:
+		return h.handleCommandKey(m, key)
 	}
 
 	// Try to accumulate count (only if no pending sequence)
@@ -275,6 +280,19 @@ func (h *Handler) handleInsertKey(m action.Model, key string) tea.Cmd {
 	return action.InsertChar{Char: key}.Execute(m)
 }
 
+func (h *Handler) handleCommandKey(m action.Model, key string) tea.Cmd {
+	kind, binding := h.commandKeymap.Lookup(key)
+	switch kind {
+	case "action":
+		return binding.(action.Action).Execute(m)
+	case "motion":
+		return binding.(action.Motion).Execute(m)
+	}
+
+	// Fallback: treat as a regular character to insert
+	return action.InsertCommandChar{Char: key}.Execute(m)
+}
+
 func normalizeVisualSelection(m action.Model) (action.Position, action.Position) {
 	a := action.Position{Line: m.AnchorY(), Col: m.AnchorX()}
 	c := action.Position{Line: m.CursorY(), Col: m.CursorX()}

internal/input/keymap.go

@@ -106,6 +106,24 @@ func NewInsertKeymap() *Keymap {
 
 }
 
+func NewCommandKeymap() *Keymap {
+	return &Keymap{
+		motions: map[string]action.Motion{
+			"left":  motion.MoveCommandLeft{},
+			"right": motion.MoveCommandRight{},
+		},
+		operators: map[string]action.Operator{}, // this will likely be empty
+		actions: map[string]action.Action{
+			"esc":       action.ExitCommandMode{},
+			"enter":     action.CommandExecute{},
+			"backspace": action.CommandBackspace{},
+			"delete":    action.CommandDelete{},
+			"ctrl+w":    action.CommandDeletePreviousWord{},
+		},
+	}
+
+}
+
 // Lookup returns what type of binding a key is
 func (km *Keymap) Lookup(key string) (kind string, value any) {
 	if m, ok := km.motions[key]; ok {

internal/motion/command.go

@@ -0,0 +1,26 @@
+package motion
+
+import (
+	"git.gophernest.net/azpect/TextEditor/internal/action"
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+type MoveCommandLeft struct{}
+
+func (a MoveCommandLeft) Execute(m action.Model) tea.Cmd {
+	// The set function handles bounds
+	m.SetCommandCursor(m.CommandCursor() - 1)
+	return nil
+}
+
+func (a MoveCommandLeft) Type() action.MotionType { return action.Charwise }
+
+type MoveCommandRight struct{}
+
+func (a MoveCommandRight) Execute(m action.Model) tea.Cmd {
+	// The set function handles bounds
+	m.SetCommandCursor(m.CommandCursor() + 1)
+	return nil
+}
+
+func (a MoveCommandRight) Type() action.MotionType { return action.Charwise }