Allow cc/bcc command to receive no arguments

commands/compose/cc-bcc.go

@@ -1,7 +1,6 @@
 package compose
 
 import (
-	"fmt"
 	"strings"
 
 	"git.sr.ht/~sircmpwn/aerc/widgets"
@@ -22,10 +21,10 @@ func (_ CC) Complete(aerc *widgets.Aerc, args []string) []string {
 }
 
 func (_ CC) Execute(aerc *widgets.Aerc, args []string) error {
-	if len(args) < 2 {
-		return fmt.Errorf("Usage: %s <addresses>", args[0])
+	var addrs string
+	if len(args) > 1 {
+		addrs = strings.Join(args[1:], " ")
 	}
-	addrs := strings.Join(args[1:], " ")
 	composer, _ := aerc.SelectedTab().(*widgets.Composer)
 
 	switch args[0] {

doc/aerc.1.scd

@@ -216,7 +216,7 @@ message list, the message in the message viewer, etc).
 	Detaches the file with the given path from the composed email. If no path is
 	specified, detaches the first attachment instead.
 
-*cc* <addresses>, *bcc* <addresses>
+*cc* [addresses], *bcc* [addresses]
 	Sets the Cc or Bcc header to the given addresses. If an editor for the header
 	is not currently visible in the compose window, a new one will be added.
 

widgets/compose.go

@@ -509,6 +509,17 @@ func (c *Composer) NextField() {
 	c.focusable[c.focused].Focus(true)
 }
 
+func (c *Composer) FocusEditor(editor *headerEditor) {
+	c.focusable[c.focused].Focus(false)
+	for i, e := range c.focusable {
+		if e == editor {
+			c.focused = i
+			break
+		}
+	}
+	c.focusable[c.focused].Focus(true)
+}
+
 // AddEditor appends a new header editor to the compose window.
 func (c *Composer) AddEditor(header string, value string, appendHeader bool) {
 	if _, ok := c.editors[header]; ok {
@@ -517,6 +528,9 @@ func (c *Composer) AddEditor(header string, value string, appendHeader bool) {
 			value = strings.TrimSpace(header) + ", " + value
 		}
 		c.editors[header].input.Set(value)
+		if value == "" {
+			c.FocusEditor(c.editors[header])
+		}
 		return
 	}
 	e := newHeaderEditor(header, value)
@@ -529,6 +543,9 @@ func (c *Composer) AddEditor(header string, value string, appendHeader bool) {
 		c.focusable[len(c.focusable)-1],
 	)
 	c.updateGrid()
+	if value == "" {
+		c.FocusEditor(c.editors[header])
+	}
 }
 
 // updateGrid should be called when the underlying header layout is changed.