added option to toggle log timestamp in the log view, closes #107

README.md

@@ -77,7 +77,7 @@ h | Open help dialog
 s | Select container sort field
 r | Reverse container sort order
 m | Manage container (start, stop and/or remove)
-l | View container logs
+l | View container logs (`t` to toggle timestamp when open)
 q | Quit ctop
 
 [build]: _docs/build.md

cwidgets/single/main.go

@@ -91,9 +91,6 @@ func (e *Single) Align() {
 	log.Debugf("align: width=%v left-col=%v right-col=%v", e.Width, colWidth[0], colWidth[1])
 }
 
-func calcWidth(w int) {
-}
-
 func (e *Single) Buffer() ui.Buffer {
 	buf := ui.NewBuffer()
 	if e.Width < (colWidth[0] + colWidth[1]) {

menus.go

@@ -6,16 +6,20 @@ import (
 	"github.com/bcicen/ctop/widgets"
 	"github.com/bcicen/ctop/widgets/menu"
 	ui "github.com/gizak/termui"
+	"time"
+	"fmt"
 )
 
 var helpDialog = []menu.Item{
-	menu.Item{"[a] - toggle display of all containers", ""},
-	menu.Item{"[f] - filter displayed containers", ""},
-	menu.Item{"[h] - open this help dialog", ""},
-	menu.Item{"[H] - toggle ctop header", ""},
-	menu.Item{"[s] - select container sort field", ""},
-	menu.Item{"[r] - reverse container sort order", ""},
-	menu.Item{"[q] - exit ctop", ""},
+	{"[a] - toggle display of all containers", ""},
+	{"[f] - filter displayed containers", ""},
+	{"[h] - open this help dialog", ""},
+	{"[H] - toggle ctop header", ""},
+	{"[s] - select container sort field", ""},
+	{"[r] - reverse container sort order", ""},
+	{"[m] - Manage container (start, stop and/or remove)", ""},
+	{"[l] - View container logs ([t] to toggle timestamp when open)", ""},
+	{"[q] - exit ctop", ""},
 }
 
 func HelpMenu() {
@@ -162,7 +166,9 @@ func LogMenu() {
 
 	ui.Handle("/sys/wnd/resize", func(e ui.Event) {
 		m.Resize()
-		ui.Render(m)
+	})
+	ui.Handle("/sys/kbd/t", func(ui.Event) {
+		m.Toggle()
 	})
 	ui.Handle("/sys/kbd/", func(ui.Event) {
 		quit <- true
@@ -171,18 +177,30 @@ func LogMenu() {
 	ui.Loop()
 }
 
-func logReader(container *container.Container) (logs chan string, quit chan bool) {
+type toggleLog struct {
+	timestamp time.Time
+	message   string
+}
+
+func (t *toggleLog) Toggle(on bool) string {
+	if on {
+		return fmt.Sprintf("%s %s", t.timestamp.Format("2006-01-02T15:04:05.999Z07:00"), t.message)
+	}
+	return t.message
+}
+
+func logReader(container *container.Container) (logs chan widgets.ToggleText, quit chan bool) {
 
 	logCollector := container.Logs()
 	stream := logCollector.Stream()
-	logs = make(chan string)
+	logs = make(chan widgets.ToggleText)
 	quit = make(chan bool)
 
 	go func() {
 		for {
 			select {
 			case log := <-stream:
-				logs <- log.Message
+				logs <- &toggleLog{timestamp: log.Timestamp, message: log.Message}
 			case <-quit:
 				logCollector.Stop()
 				close(logs)

widgets/view.go

@@ -4,23 +4,29 @@ import (
 	ui "github.com/gizak/termui"
 )
 
+type ToggleText interface {
+	// returns text for toggle on/off
+	Toggle(on bool) string
+}
+
 type TextView struct {
 	ui.Block
-	inputStream <-chan string
+	inputStream <-chan ToggleText
 	render      chan bool
-	Text        []string // all the text
+	toggleState bool
+	Text        []ToggleText // all the text
 	TextOut     []string     // text to be displayed
 	TextFgColor ui.Attribute
 	TextBgColor ui.Attribute
 	padding     Padding
 }
 
-func NewTextView(lines <-chan string) *TextView {
+func NewTextView(lines <-chan ToggleText) *TextView {
 	t := &TextView{
 		Block:       *ui.NewBlock(),
 		inputStream: lines,
 		render:      make(chan bool),
-		Text:        []string{},
+		Text:        []ToggleText{},
 		TextOut:     []string{},
 		TextFgColor: ui.ThemeAttr("menu.text.fg"),
 		TextBgColor: ui.ThemeAttr("menu.text.bg"),
@@ -37,6 +43,8 @@ func NewTextView(lines <-chan string) *TextView {
 	return t
 }
 
+// Adjusts text inside this view according to the window size. No need to call ui.Render(...)
+// after calling this method, it is called automatically
 func (t *TextView) Resize() {
 	ui.Clear()
 	t.Height = ui.TermHeight()
@@ -44,6 +52,13 @@ func (t *TextView) Resize() {
 	t.render <- true
 }
 
+// Toggles text inside this view. No need to call ui.Render(...) after calling this method,
+// it is called automatically
+func (t *TextView) Toggle() {
+	t.toggleState = !t.toggleState
+	t.render <- true
+}
+
 func (t *TextView) Buffer() ui.Buffer {
 	var cell ui.Cell
 	buf := t.Block.Buffer()
@@ -70,7 +85,7 @@ func (t *TextView) renderLoop() {
 			height := t.Height - (t.padding[1] * 2)
 			t.TextOut = []string{}
 			for i := len(t.Text) - 1; i >= 0; i-- {
-				lines := splitLine(t.Text[i], maxWidth)
+				lines := splitLine(t.Text[i].Toggle(t.toggleState), maxWidth)
 				t.TextOut = append(lines, t.TextOut...)
 				if len(t.TextOut) > height {
 					t.TextOut = t.TextOut[:height]