add list entry highlighting

cli.go

@@ -72,8 +72,10 @@ func cliStatusError(status string) {
 	fmt.Println("\x1b[1;41;37m" + status + "\x1b[0m")
 }
 
-// cliList writes a table to the screen
-func cliTable(columns ...[]string) {
+// cliList writes a table to the screen. The line can be highlighted by
+// passing the related line number. If highlight < 0 no line will be
+// highlighted.
+func cliTable(highlight int, columns ...[]string) {
 	cliClearDown()
 
 	space := make([]int, len(columns))
@@ -92,7 +94,12 @@ func cliTable(columns ...[]string) {
 
 	for i := 0; i < lines; i++ {
 		for n, c := range columns {
-			fmt.Printf("\x1b[%vm", ((n+1)%2)*34)
+			if i == highlight {
+				fmt.Printf("\x1b[%vm", 31) // red line
+			} else {
+				fmt.Printf("\x1b[%vm", ((n+1)%2)*34) // blue columns
+			}
+
 			if i < len(c) {
 				fmt.Print(c[i] + strings.Repeat(" ", 1+space[n]-cliRealCount(c[i]))) // not good
 			} else {

logic.go

@@ -119,7 +119,7 @@ func logicSearchPage(title, page string) {
 	if len(list) == 0 {
 		cliStatusError("no results for the given query")
 	}
-	logicList(list)
+	logicList(-1, list)
 }
 
 // logicNumber selects the given list number
@@ -140,7 +140,7 @@ func logicNumber(command string) {
 		fallthrough
 	case logicWindowSearch:
 		if sel < len(logicVarVideos) {
-			logicPlay(splits[0], player, logicVarVideos[sel]) // non blocking
+			logicPlay(player, sel) // non blocking
 		} else {
 			cliStatusError("error: video id not in list")
 		}
@@ -196,7 +196,7 @@ func logicSub(none string) {
 
 	logicVarUsers = users
 	cliStatus("list of subscriptions")
-	cliTable(id[0], us[0], id[1], us[1], id[2], us[2], id[3], us[3])
+	cliTable(-1, id[0], us[0], id[1], us[1], id[2], us[2], id[3], us[3])
 }
 
 // logicSubAdd adds the given user to the subscription list
@@ -258,7 +258,7 @@ func logicUserPage(user, page string) {
 	cliStatus("page " + page + " | user: " + user)
 	logicVarWindow = logicWindowUser
 	logicVarUser = user
-	logicList(videoListUser(user))
+	logicList(-1, videoListUser(user))
 }
 
 // logicNew shows a list of new videos
@@ -300,12 +300,11 @@ func logicNew(none string) {
 		videos = videos[0:30] // TODO add multiple pages
 	}
 
-	logicVarVideos = videos
-
 	cliHome()
 	fmt.Println()
 	cliStatus("newest videos")
-	logicList(videos)
+
+	logicList(-1, videos)
 }
 
 // logicSet sets the key to the given value. Format: "key value"
@@ -349,10 +348,13 @@ func logicQuit(none string) {
 	os.Exit(0)
 }
 
-// logicList shows a video list
-func logicList(videos []*videoContainer) {
-	cliClearDown()
+// logicList shows a video list and highlights the line with the given
+// line number. If hightlight < 0 no line will be highlighted.
+// The global video list logicVarVideos will be set by this function.
+func logicList(highlight int, videos []*videoContainer) {
 	logicVarVideos = videos
+
+	cliClearDown()
 	id, titles, urls, durations, users, dates, views := []string{}, []string{}, []string{}, []string{}, []string{}, []string{}, []string{}
 	for i, v := range videos {
 		id = append(id, strconv.Itoa(i))
@@ -363,7 +365,7 @@ func logicList(videos []*videoContainer) {
 		dates = append(dates, v.date)
 		views = append(views, v.views)
 	}
-	cliTable(id, titles, durations, users, views, dates)
+	cliTable(highlight, id, titles, durations, users, views, dates)
 }
 
 // logicGetPlayer gets the default video player
@@ -381,14 +383,16 @@ func logicSetPlayer(player string) {
 	cliClearDown()
 }
 
-// logicPlay plays the video in the given player
-func logicPlay(info, player string, video *videoContainer) {
+// logicPlay plays the video with the given video id in the player
+func logicPlay(player string, id int) {
+	video := logicVarVideos[id]
 	cmd := append(strings.Split(player, " "), "https://www.youtube.com/watch?v="+video.url)
 	exe := exec.Command(cmd[0], cmd[1:]...)
 	if err := exe.Start(); err != nil {
 		cliStatusError(fmt.Sprint("playback error: ", err))
 	} else {
-		cliStatus("[" + info + "][" + player + "] " + video.title)
+		cliStatus("[" + player + "] " + video.title)
+		logicList(id, logicVarVideos)
 	}
 	go exe.Wait()
 }