From 6b27c911680e3ae6abbec429f39c774e1c425600 Mon Sep 17 00:00:00 2001
From: Emeric MARTINEAU <11473190+emeric-martineau@users.noreply.github.com>
Date: Thu, 1 Oct 2020 14:17:03 +0200
Subject: [PATCH] Fix #374 allow remove crumbs

---
 README.md                |  2 ++
 cmd/root.go              |  6 ++++++
 internal/config/flags.go |  2 ++
 internal/config/k9s.go   | 17 +++++++++++++++++
 internal/view/app.go     | 30 +++++++++++++++++++++++++++++-
 5 files changed, 56 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a111676b..1f9bb41e 100644
--- a/README.md
+++ b/README.md
@@ -242,6 +242,8 @@ K9s uses aliases to navigate most K8s resources.
     enableMouse: false
     # Set to true to hide K9s header. Default false
     headless: false
+    # Set to true to hide K9s footer. Default false
+    crumbsless: false
     # Indicates whether modification commands like delete/kill/edit are disabled. Default is false
     readOnly: false
     # Toggles icons display as not all terminal support these chars.
diff --git a/cmd/root.go b/cmd/root.go
index fcfe28a9..9c5d0966 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -217,6 +217,12 @@ func initK9sFlags() {
 		false,
 		"Disable all commands that modify the cluster",
 	)
+	rootCmd.Flags().BoolVar(
+		k9sFlags.Crumbsless,
+		"crumbsless",
+		false,
+		"Turn K9s crumbs off",
+	)
 }
 
 func initK8sFlags() {
diff --git a/internal/config/flags.go b/internal/config/flags.go
index 1f79b940..82c762b2 100644
--- a/internal/config/flags.go
+++ b/internal/config/flags.go
@@ -19,6 +19,7 @@ type Flags struct {
 	Command       *string
 	AllNamespaces *bool
 	ReadOnly      *bool
+	Crumbsless    *bool
 }
 
 // NewFlags returns new configuration flags.
@@ -30,6 +31,7 @@ func NewFlags() *Flags {
 		Command:       strPtr(DefaultCommand),
 		AllNamespaces: boolPtr(false),
 		ReadOnly:      boolPtr(false),
+		Crumbsless:    boolPtr(false),
 	}
 }
 
diff --git a/internal/config/k9s.go b/internal/config/k9s.go
index dc39c2cb..9c663036 100644
--- a/internal/config/k9s.go
+++ b/internal/config/k9s.go
@@ -9,6 +9,7 @@ type K9s struct {
 	RefreshRate       int                 `yaml:"refreshRate"`
 	EnableMouse       bool                `yaml:"enableMouse"`
 	Headless          bool                `yaml:"headless"`
+	Crumbsless        bool                `yaml:"crumbsless"`
 	ReadOnly          bool                `yaml:"readOnly"`
 	NoIcons           bool                `yaml:"noIcons"`
 	Logger            *Logger             `yaml:"logger"`
@@ -18,6 +19,7 @@ type K9s struct {
 	Thresholds        Threshold           `yaml:"thresholds"`
 	manualRefreshRate int
 	manualHeadless    *bool
+	manualCrumbsless  *bool
 	manualReadOnly    *bool
 	manualCommand     *string
 }
@@ -42,6 +44,11 @@ func (k *K9s) OverrideHeadless(b bool) {
 	k.manualHeadless = &b
 }
 
+// OverrideCrumbsless set the headlessness manually.
+func (k *K9s) OverrideCrumbsless(b bool) {
+	k.manualCrumbsless = &b
+}
+
 // OverrideReadOnly set the readonly mode manually.
 func (k *K9s) OverrideReadOnly(b bool) {
 	k.manualReadOnly = &b
@@ -62,6 +69,16 @@ func (k *K9s) GetHeadless() bool {
 	return h
 }
 
+// GetCrumbsless returns crumbsless setting.
+func (k *K9s) GetCrumbsless() bool {
+	h := k.Crumbsless
+	if k.manualCrumbsless != nil && *k.manualCrumbsless {
+		h = *k.manualCrumbsless
+	}
+
+	return h
+}
+
 // GetRefreshRate returns the current refresh rate.
 func (k *K9s) GetRefreshRate() int {
 	rate := k.RefreshRate
diff --git a/internal/view/app.go b/internal/view/app.go
index e073f423..f56fb6e1 100644
--- a/internal/view/app.go
+++ b/internal/view/app.go
@@ -48,6 +48,7 @@ type App struct {
 	filterHistory *model.History
 	conRetry      int32
 	showHeader    bool
+	showCrumbs    bool
 }
 
 // NewApp returns a K9s app instance.
@@ -129,12 +130,12 @@ func (a *App) layout(ctx context.Context, version string) {
 	main := tview.NewFlex().SetDirection(tview.FlexRow)
 	main.AddItem(a.statusIndicator(), 1, 1, false)
 	main.AddItem(a.Content, 0, 10, true)
-	main.AddItem(a.Crumbs(), 1, 1, false)
 	main.AddItem(flash, 1, 1, false)
 
 	a.Main.AddPage("main", main, true, false)
 	a.Main.AddPage("splash", ui.NewSplash(a.Styles, version), true, true)
 	a.toggleHeader(!a.Config.K9s.GetHeadless())
+	a.toggleCrumbs(!a.Config.K9s.GetCrumbsless())
 }
 
 func (a *App) initSignals() {
@@ -186,6 +187,7 @@ func (a *App) keyboard(evt *tcell.EventKey) *tcell.EventKey {
 func (a *App) bindKeys() {
 	a.AddActions(ui.KeyActions{
 		tcell.KeyCtrlE: ui.NewSharedKeyAction("ToggleHeader", a.toggleHeaderCmd, false),
+		tcell.KeyCtrlT: ui.NewSharedKeyAction("toggleCrumbs", a.toggleCrumbsCmd, false),
 		ui.KeyHelp:     ui.NewSharedKeyAction("Help", a.helpCmd, false),
 		tcell.KeyCtrlA: ui.NewSharedKeyAction("Aliases", a.aliasCmd, false),
 		tcell.KeyEnter: ui.NewKeyAction("Goto", a.gotoCmd, false),
@@ -212,6 +214,19 @@ func (a *App) toggleHeader(flag bool) {
 	}
 }
 
+func (a *App) toggleCrumbs(flag bool) {
+	a.showCrumbs = flag
+	flex, ok := a.Main.GetPrimitive("main").(*tview.Flex)
+	if !ok {
+		log.Fatal().Msg("Expecting valid flex view")
+	}
+	if a.showCrumbs {
+		flex.AddItemAtIndex(2, a.Crumbs(), 1, 1, false)
+	} else {
+		flex.RemoveItemAtIndex(2)
+	}
+}
+
 func (a *App) buildHeader() tview.Primitive {
 	header := tview.NewFlex()
 	header.SetBackgroundColor(a.Styles.BgColor())
@@ -498,6 +513,19 @@ func (a *App) toggleHeaderCmd(evt *tcell.EventKey) *tcell.EventKey {
 	return nil
 }
 
+func (a *App) toggleCrumbsCmd(evt *tcell.EventKey) *tcell.EventKey {
+	if a.Prompt().InCmdMode() {
+		return evt
+	}
+
+	a.QueueUpdateDraw(func() {
+		a.showCrumbs = !a.showCrumbs
+		a.toggleCrumbs(a.showCrumbs)
+	})
+
+	return nil
+}
+
 func (a *App) gotoCmd(evt *tcell.EventKey) *tcell.EventKey {
 	if a.CmdBuff().IsActive() && !a.CmdBuff().Empty() {
 		if err := a.gotoResource(a.GetCmd(), "", true); err != nil {