Add style presets: --style=[default|minimal|full]

Close #4160

2 files changed, 67 insertions, 3 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e0b8e66e..e6cf9ef8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,16 @@ CHANGELOG
 
 0.58.0
 ------
-- Border and label for the list section
+
+This version introduces three new border types, `--list-border`, `--input-border`, and `--header-border`, offering much greater flexibility for customizing the user interface.
+
+Also, fzf now offers three "style presets" for easier customization, which can be activated using the `--style=[default|minimal|full]` option.
+
+- Style presets (#4160)
+    - `--style=full`
+    - `--style=default`
+    - `--style=minimal`
+- Border and label for the list section (#4148)
     - Options
         - `--list-border[=STYLE]`
         - `--list-label=LABEL`
@@ -16,7 +25,7 @@ CHANGELOG
     - Actions
         - `change-list-label`
         - `transform-list-label`
-- Border and label for the input section (prompt line and info line)
+- Border and label for the input section (prompt line and info line) (#4154)
     - Options
         - `--input-border[=STYLE]`
         - `--input-label=LABEL`
@@ -29,7 +38,7 @@ CHANGELOG
     - Actions
         - `change-input-label`
         - `transform-input-label`
-- Border and label for the header section
+- Border and label for the header section (#4159)
     - Options
         - `--header-border[=STYLE]`
         - `--header-label=LABEL`
diff --git a/src/options.go b/src/options.go
index 7db7418b..2b1425fc 100644
--- a/src/options.go
+++ b/src/options.go
@@ -67,6 +67,7 @@ Usage: fzf [options]
     --jump-labels=CHARS      Label characters for jump mode
 
   Layout
+    --style=PRESET           Apply a style preset [default|minimal|full]
     --height=[~]HEIGHT[%]    Display fzf window below the cursor with the given
                              height instead of using fullscreen.
                              A negative value is calculated as the terminal height
@@ -2646,6 +2647,14 @@ func parseOptions(index *int, opts *Options, allArgs []string) error {
 			if err := parseLabelPosition(&opts.PreviewLabel, pos); err != nil {
 				return err
 			}
+		case "--style":
+			preset, err := nextString(allArgs, &i, "preset name required: [default|minimal|full]")
+			if err != nil {
+				return err
+			}
+			if err := applyPreset(opts, preset); err != nil {
+				return err
+			}
 		case "--no-unicode":
 			opts.Unicode = false
 		case "--unicode":
@@ -2742,6 +2751,10 @@ func parseOptions(index *int, opts *Options, allArgs []string) error {
 				if opts.Tmux, err = parseTmuxOptions(value, index); err != nil {
 					return err
 				}
+			} else if match, value := optString(arg, "--style="); match {
+				if err := applyPreset(opts, value); err != nil {
+					return err
+				}
 			} else if match, value := optString(arg, "--scheme="); match {
 				opts.Scheme = strings.ToLower(value)
 			} else if match, value := optString(arg, "-q", "--query="); match {
@@ -2990,6 +3003,48 @@ func parseOptions(index *int, opts *Options, allArgs []string) error {
 	return err
 }
 
+func applyPreset(opts *Options, preset string) error {
+	switch strings.ToLower(preset) {
+	case "default":
+		opts.ListBorderShape = tui.BorderUndefined
+		opts.InputBorderShape = tui.BorderUndefined
+		opts.HeaderBorderShape = tui.BorderUndefined
+		opts.Preview.border = tui.DefaultBorderShape
+		opts.Preview.info = true
+		opts.InfoStyle = infoDefault
+		opts.Theme.Gutter = tui.NewColorAttr()
+		opts.Separator = nil
+		opts.Scrollbar = nil
+		opts.CursorLine = false
+	case "minimal":
+		opts.ListBorderShape = tui.BorderUndefined
+		opts.InputBorderShape = tui.BorderUndefined
+		opts.HeaderBorderShape = tui.BorderUndefined
+		opts.Preview.border = tui.BorderLine
+		opts.Preview.info = false
+		opts.InfoStyle = infoDefault
+		opts.Theme.Gutter = tui.ColorAttr{Color: -1, Attr: 0}
+		empty := ""
+		opts.Separator = &empty
+		opts.Scrollbar = &empty
+		opts.CursorLine = false
+	case "full":
+		opts.ListBorderShape = tui.DefaultBorderShape
+		opts.InputBorderShape = tui.DefaultBorderShape
+		opts.HeaderBorderShape = tui.DefaultBorderShape
+		opts.Preview.border = tui.DefaultBorderShape
+		opts.Preview.info = true
+		opts.InfoStyle = infoInlineRight
+		opts.Theme.Gutter = tui.NewColorAttr()
+		opts.Separator = nil
+		opts.Scrollbar = nil
+		opts.CursorLine = true
+	default:
+		return errors.New("unsupported style preset: " + preset)
+	}
+	return nil
+}
+
 func validateSign(sign string, signOptName string) error {
 	if uniseg.StringWidth(sign) > 2 {
 		return fmt.Errorf("%v display width should be up to 2", signOptName)