view,compose: use border color to separate headers from body

When composing a message, there is an empty fill line between the
headers and the text editor. The line is printed with the default style
which may cause users to assume it is part of the editor.

Display the fill lines with the border color to avoid confusion.

Signed-off-by: Robin Jarry <robin@jarry.cc>

lib/ui/fill.go

@@ -4,16 +4,19 @@ import (
 	"github.com/gdamore/tcell/v2"
 )
 
-type Fill rune
+type Fill struct {
+	Rune  rune
+	Style tcell.Style
+}
 
-func NewFill(f rune) Fill {
+func NewFill(f rune, s tcell.Style) Fill {
-	return Fill(f)
+	return Fill{f, s}
 }
 
 func (f Fill) Draw(ctx *Context) {
 	for x := 0; x < ctx.Width(); x += 1 {
 		for y := 0; y < ctx.Height(); y += 1 {
-			ctx.SetCell(x, y, rune(f), tcell.StyleDefault)
+			ctx.SetCell(x, y, f.Rune, f.Style)
 		}
 	}
 }

widgets/account-wizard.go

@@ -163,7 +163,7 @@ func NewAccountWizard(conf *config.AercConfig, aerc *Aerc) *AccountWizard {
 		At(1, 0)
 	basics.AddChild(wizard.accountName).
 		At(2, 0)
-	basics.AddChild(ui.NewFill(' ')).
+	basics.AddChild(ui.NewFill(' ', tcell.StyleDefault)).
 		At(3, 0)
 	basics.AddChild(
 		ui.NewText("Full name for outgoing emails? (e.g. 'John Doe')",
@@ -171,7 +171,7 @@ func NewAccountWizard(conf *config.AercConfig, aerc *Aerc) *AccountWizard {
 		At(4, 0)
 	basics.AddChild(wizard.fullName).
 		At(5, 0)
-	basics.AddChild(ui.NewFill(' ')).
+	basics.AddChild(ui.NewFill(' ', tcell.StyleDefault)).
 		At(6, 0)
 	basics.AddChild(
 		ui.NewText("Your email address? (e.g. 'john@example.org')",
@@ -238,7 +238,7 @@ func NewAccountWizard(conf *config.AercConfig, aerc *Aerc) *AccountWizard {
 		At(1, 0)
 	incoming.AddChild(wizard.imapUsername).
 		At(2, 0)
-	incoming.AddChild(ui.NewFill(' ')).
+	incoming.AddChild(ui.NewFill(' ', tcell.StyleDefault)).
 		At(3, 0)
 	incoming.AddChild(
 		ui.NewText("Password",
@@ -246,7 +246,7 @@ func NewAccountWizard(conf *config.AercConfig, aerc *Aerc) *AccountWizard {
 		At(4, 0)
 	incoming.AddChild(wizard.imapPassword).
 		At(5, 0)
-	incoming.AddChild(ui.NewFill(' ')).
+	incoming.AddChild(ui.NewFill(' ', tcell.StyleDefault)).
 		At(6, 0)
 	incoming.AddChild(
 		ui.NewText("Server address "+
@@ -255,7 +255,7 @@ func NewAccountWizard(conf *config.AercConfig, aerc *Aerc) *AccountWizard {
 		At(7, 0)
 	incoming.AddChild(wizard.imapServer).
 		At(8, 0)
-	incoming.AddChild(ui.NewFill(' ')).
+	incoming.AddChild(ui.NewFill(' ', tcell.StyleDefault)).
 		At(9, 0)
 	incoming.AddChild(
 		ui.NewText("Connection mode",
@@ -279,7 +279,7 @@ func NewAccountWizard(conf *config.AercConfig, aerc *Aerc) *AccountWizard {
 	incoming.AddChild(imapMode).At(11, 0)
 	selector = NewSelector([]string{"Previous", "Next"}, 1, conf.Ui).
 		OnChoose(wizard.advance)
-	incoming.AddChild(ui.NewFill(' ')).At(12, 0)
+	incoming.AddChild(ui.NewFill(' ', tcell.StyleDefault)).At(12, 0)
 	incoming.AddChild(wizard.imapStr).At(13, 0)
 	incoming.AddChild(selector).At(14, 0)
 	wizard.incoming = []ui.Interactive{
@@ -320,7 +320,7 @@ func NewAccountWizard(conf *config.AercConfig, aerc *Aerc) *AccountWizard {
 		At(1, 0)
 	outgoing.AddChild(wizard.smtpUsername).
 		At(2, 0)
-	outgoing.AddChild(ui.NewFill(' ')).
+	outgoing.AddChild(ui.NewFill(' ', tcell.StyleDefault)).
 		At(3, 0)
 	outgoing.AddChild(
 		ui.NewText("Password",
@@ -328,7 +328,7 @@ func NewAccountWizard(conf *config.AercConfig, aerc *Aerc) *AccountWizard {
 		At(4, 0)
 	outgoing.AddChild(wizard.smtpPassword).
 		At(5, 0)
-	outgoing.AddChild(ui.NewFill(' ')).
+	outgoing.AddChild(ui.NewFill(' ', tcell.StyleDefault)).
 		At(6, 0)
 	outgoing.AddChild(
 		ui.NewText("Server address "+
@@ -337,7 +337,7 @@ func NewAccountWizard(conf *config.AercConfig, aerc *Aerc) *AccountWizard {
 		At(7, 0)
 	outgoing.AddChild(wizard.smtpServer).
 		At(8, 0)
-	outgoing.AddChild(ui.NewFill(' ')).
+	outgoing.AddChild(ui.NewFill(' ', tcell.StyleDefault)).
 		At(9, 0)
 	outgoing.AddChild(
 		ui.NewText("Connection mode",
@@ -361,9 +361,9 @@ func NewAccountWizard(conf *config.AercConfig, aerc *Aerc) *AccountWizard {
 	outgoing.AddChild(smtpMode).At(11, 0)
 	selector = NewSelector([]string{"Previous", "Next"}, 1, conf.Ui).
 		OnChoose(wizard.advance)
-	outgoing.AddChild(ui.NewFill(' ')).At(12, 0)
+	outgoing.AddChild(ui.NewFill(' ', tcell.StyleDefault)).At(12, 0)
 	outgoing.AddChild(wizard.smtpStr).At(13, 0)
-	outgoing.AddChild(ui.NewFill(' ')).At(14, 0)
+	outgoing.AddChild(ui.NewFill(' ', tcell.StyleDefault)).At(14, 0)
 	outgoing.AddChild(
 		ui.NewText("Copy sent messages to 'Sent' folder?",
 			conf.Ui.GetStyle(config.STYLE_HEADER))).At(15, 0)

widgets/aerc.go

@@ -648,8 +648,8 @@ func errorScreen(s string, conf config.UIConfig) ui.Drawable {
 	}).Columns([]ui.GridSpec{
 		{ui.SIZE_WEIGHT, ui.Const(1)},
 	})
-	grid.AddChild(ui.NewFill(' ')).At(0, 0)
+	grid.AddChild(ui.NewFill(' ', tcell.StyleDefault)).At(0, 0)
 	grid.AddChild(text).At(1, 0)
-	grid.AddChild(ui.NewFill(' ')).At(2, 0)
+	grid.AddChild(ui.NewFill(' ', tcell.StyleDefault)).At(2, 0)
 	return grid
 }

widgets/compose.go

@@ -678,9 +678,10 @@ func (c *Composer) updateGrid() {
 	if c.heditors != nil {
 		c.grid.RemoveChild(c.heditors)
 	}
+	borderStyle := c.config.Ui.GetStyle(config.STYLE_BORDER)
 	c.heditors = heditors
 	c.grid.AddChild(c.heditors).At(0, 0)
-	c.grid.AddChild(ui.NewFill(' ')).At(1, 0)
+	c.grid.AddChild(ui.NewFill(' ', borderStyle)).At(1, 0)
 }
 
 func (c *Composer) reloadEmail() error {

widgets/msgviewer.go

@@ -105,13 +105,15 @@ func NewMessageViewer(acct *AccountView,
 		}
 	}
 
+	borderStyle := acct.UiConfig().GetStyle(config.STYLE_BORDER)
+
 	grid.AddChild(header).At(0, 0)
 	if msg.PGPDetails() != nil {
 		grid.AddChild(NewPGPInfo(msg.PGPDetails(), acct.UiConfig())).At(1, 0)
-		grid.AddChild(ui.NewFill(' ')).At(2, 0)
+		grid.AddChild(ui.NewFill(' ', borderStyle)).At(2, 0)
 		grid.AddChild(switcher).At(3, 0)
 	} else {
-		grid.AddChild(ui.NewFill(' ')).At(1, 0)
+		grid.AddChild(ui.NewFill(' ', borderStyle)).At(1, 0)
 		grid.AddChild(switcher).At(2, 0)
 	}