From c93d7a1b35c56712c3cff797e2fd7b7b9eefecf7 Mon Sep 17 00:00:00 2001
From: Zachary Yedidia <zyedidia@gmail.com>
Date: Sat, 15 Jun 2019 16:13:04 -0400
Subject: [PATCH] Add hidehelp support

---
 internal/action/command.go     |  8 ++------
 internal/buffer/buffer.go      | 17 +++++++++++++++++
 internal/buffer/settings.go    |  2 ++
 internal/display/statusline.go | 15 +++++----------
 4 files changed, 26 insertions(+), 16 deletions(-)

diff --git a/internal/action/command.go b/internal/action/command.go
index 4db56207..9b96de09 100644
--- a/internal/action/command.go
+++ b/internal/action/command.go
@@ -365,13 +365,9 @@ func SetGlobalOption(option, value string) error {
 		for _, b := range buffer.OpenBuffers {
 			b.UpdateRules()
 		}
-	}
-
-	if option == "infobar" || option == "keymenu" {
+	} else if option == "infobar" || option == "keymenu" {
 		Tabs.Resize()
-	}
-
-	if option == "mouse" {
+	} else if option == "mouse" {
 		if !nativeValue.(bool) {
 			screen.Screen.DisableMouse()
 		} else {
diff --git a/internal/buffer/buffer.go b/internal/buffer/buffer.go
index 543c5109..36bb6cff 100644
--- a/internal/buffer/buffer.go
+++ b/internal/buffer/buffer.go
@@ -107,6 +107,9 @@ type Buffer struct {
 	CurSuggestion int
 
 	Messages []*Message
+
+	StatusFormatLeft  string
+	StatusFormatRight string
 }
 
 // NewBufferFromFile opens a new buffer using the given path
@@ -236,11 +239,25 @@ func NewBuffer(r io.Reader, size int64, path string, cursorPosition []string, bt
 		screen.TermMessage(err)
 	}
 
+	b.SetStatusFormat()
+
 	OpenBuffers = append(OpenBuffers, b)
 
 	return b
 }
 
+// SetStatusFormat will correctly set the format string for the
+// status line
+func (b *Buffer) SetStatusFormat() {
+	if b.Settings["hidehelp"].(bool) {
+		b.StatusFormatLeft = "$(filename) $(modified)($(line),$(col)) $(opt:filetype) $(opt:fileformat) $(opt:encoding)"
+		b.StatusFormatRight = ""
+	} else {
+		b.StatusFormatLeft = "$(filename) $(modified)($(line),$(col)) $(opt:filetype) $(opt:fileformat) $(opt:encoding)"
+		b.StatusFormatRight = "$(bind:ToggleKeyMenu): show bindings, $(bind:ToggleHelp): toggle help"
+	}
+}
+
 // Close removes this buffer from the list of open buffers
 func (b *Buffer) Close() {
 	for i, buf := range OpenBuffers {
diff --git a/internal/buffer/settings.go b/internal/buffer/settings.go
index b56608be..e85672a6 100644
--- a/internal/buffer/settings.go
+++ b/internal/buffer/settings.go
@@ -45,6 +45,8 @@ func (b *Buffer) SetOption(option, value string) error {
 		}
 	} else if option == "encoding" {
 		b.isModified = true
+	} else if option == "hidehelp" {
+		b.SetStatusFormat()
 	}
 
 	return nil
diff --git a/internal/display/statusline.go b/internal/display/statusline.go
index ec7d382a..b48406cd 100644
--- a/internal/display/statusline.go
+++ b/internal/display/statusline.go
@@ -18,9 +18,7 @@ import (
 // It gives information such as filename, whether the file has been
 // modified, filetype, cursor location
 type StatusLine struct {
-	FormatLeft  string
-	FormatRight string
-	Info        map[string]func(*buffer.Buffer) string
+	Info map[string]func(*buffer.Buffer) string
 
 	win *BufWindow
 }
@@ -30,9 +28,6 @@ type StatusLine struct {
 // NewStatusLine returns a statusline bound to a window
 func NewStatusLine(win *BufWindow) *StatusLine {
 	s := new(StatusLine)
-	s.FormatLeft = "$(filename) $(modified)($(line),$(col)) $(opt:filetype) $(opt:fileformat) $(opt:encoding)"
-	// s.FormatLeft = "$(filename) $(modified)(line,col) $(opt:filetype) $(opt:fileformat)"
-	s.FormatRight = "$(bind:ToggleKeyMenu): show bindings, $(bind:ToggleHelp): toggle help"
 	s.Info = map[string]func(*buffer.Buffer) string{
 		"filename": func(b *buffer.Buffer) string {
 			if b.Settings["basename"].(bool) {
@@ -90,10 +85,10 @@ func (s *StatusLine) Display() {
 		}
 	}
 
-	leftText := []byte(s.FormatLeft)
-	leftText = formatParser.ReplaceAllFunc([]byte(s.FormatLeft), formatter)
-	rightText := []byte(s.FormatRight)
-	rightText = formatParser.ReplaceAllFunc([]byte(s.FormatRight), formatter)
+	leftText := []byte(s.win.Buf.StatusFormatLeft)
+	leftText = formatParser.ReplaceAllFunc(leftText, formatter)
+	rightText := []byte(s.win.Buf.StatusFormatRight)
+	rightText = formatParser.ReplaceAllFunc(rightText, formatter)
 
 	statusLineStyle := config.DefStyle.Reverse(true)
 	if style, ok := config.Colorscheme["statusline"]; ok {