Add scrollbar to lists

Resolves #9.

CHANGELOG

@@ -1,3 +1,6 @@
+0.1.7:
+- Add scrollbar to lists
+
 0.1.6:
 - Add mouse support to queue
 

CONFIGURATION.md

@@ -24,7 +24,7 @@ configuration options and their defaults.
 * **Refresh** R
 * **Toggle hidden folder visibility** .
 * **Browse parent folder and focus last** Backspace
-* **Exit** Escape
+* **Exit** Ctrl+C or Alt+Q
 
 # Default ~/.config/ditty/config.yaml
 
@@ -69,5 +69,5 @@ input:
   next-track:
     - 'n'
   exit:
-    - 'Escape'
+    - 'Alt+q'
 ```

README.md

@@ -7,7 +7,7 @@ Audio player
 
 ## Screenshot
 
-[![](https://ditty.rocketnine.space/static/screenshot1.png)](https://ditty.rocketnine.space/static/screenshot1.png)
+[![](https://ditty.rocketnine.space/static/screenshot2.png)](https://ditty.rocketnine.space/static/screenshot2.png)
 
 ## Demo
 

go.sum

@@ -44,6 +44,8 @@ github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzp
 github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mattn/go-runewidth v0.0.8 h1:3tS41NlGYSmhhe/8fhGRzc+z3AYCw1Fe1WAyLuujKs0=
 github.com/mattn/go-runewidth v0.0.8/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-runewidth v0.0.9-0.20200125155203-588506649b41 h1:AkInqmD1OrueaAKIWH0RWU+irX4nL1oqScB++w2CAlU=
+github.com/mattn/go-runewidth v0.0.9-0.20200125155203-588506649b41/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mewkiz/flac v1.0.5/go.mod h1:EHZNU32dMF6alpurYyKHDLYpW1lYpBZ5WrXi/VuNIGs=
 github.com/mewkiz/flac v1.0.6 h1:OnMwCWZPAnjDndjEzLynOZ71Y2U+/QYHoVI4JEKgKkk=
 github.com/mewkiz/flac v1.0.6/go.mod h1:yU74UH277dBUpqxPouHSQIar3G1X/QIclVbFahSd1pU=

gui.go

@@ -214,9 +214,11 @@ func updateMain() {
 	}
 	mainBuffer.WriteString(statusMessage)
 
-	mainbuf.SetTitle(" " + runewidth.Truncate(mainBuffer.String(), screenWidth-4, "...") + " ")
+	mainbuf.SetTitle(" " + cview.Escape(runewidth.Truncate(mainBuffer.String(), screenWidth-4, "...")) + " ")
 	mainBuffer.Reset()
 
+	l := len(mainBufferFiles) + 1
+
 	var printed int
 	var line string
 	if mainBufferOrigin == 0 {
@@ -227,17 +229,11 @@ func updateMain() {
 		} else {
 			line = "../"
 		}
+		lineWidth := runewidth.StringWidth(line)
+		line = cview.Escape(line)
 		mainBuffer.WriteString(line)
 
-		if queueFocused {
-			writeListItemSuffix(&mainBuffer, !queueFocused, mainBufferCursor, 0)
-		}
-		for i := len(line); i < screenWidth-2; i++ {
-			mainBuffer.WriteRune(' ')
-		}
-		if !queueFocused {
-			writeListItemSuffix(&mainBuffer, !queueFocused, mainBufferCursor, 0)
-		}
+		writeListItemSuffix(&mainBuffer, !queueFocused, mainBufferCursor, 0, 0, l, lineWidth, mainBufHeight-2)
 
 		printed++
 	}
@@ -253,28 +249,31 @@ func updateMain() {
 		writeListItemPrefix(&mainBuffer, !queueFocused, mainBufferCursor-1, i)
 
 		if entry.File.IsDir() {
-			line = entry.File.Name() + "/"
+			line = strings.TrimSpace(entry.File.Name()) + "/"
 		} else {
 			line = entry.String()
 		}
+		lineWidth := runewidth.StringWidth(line)
+		line = cview.Escape(line)
 		mainBuffer.WriteString(line)
 
-		if queueFocused {
-			writeListItemSuffix(&mainBuffer, !queueFocused, mainBufferCursor-1, i)
-		}
+		writeListItemSuffix(&mainBuffer, !queueFocused, mainBufferCursor, printed, i+1, l, lineWidth, mainBufHeight-2)
 
-		for i := runewidth.StringWidth(line); i < screenWidth-2; i++ {
-			mainBuffer.WriteRune(' ')
+		printed++
+		if printed == mainBufHeight-2 {
+			break
 		}
+	}
 
-		if !queueFocused {
-			writeListItemSuffix(&mainBuffer, !queueFocused, mainBufferCursor-1, i)
+	remaining := (mainBufHeight - 2) - printed
+	for i := 0; i < remaining; i++ {
+		if printed > 0 {
+			mainBuffer.WriteRune('\n')
 		}
 
+		writeListItemSuffix(&mainBuffer, !queueFocused, mainBufferCursor, printed, remaining-printed, l, 0, mainBufHeight-2)
+
 		printed++
-		if printed == mainBufHeight-2 {
-			break
-		}
 	}
 
 	mainbuf.SetText(mainBuffer.String())
@@ -286,6 +285,8 @@ func updateQueue() {
 
 	queueBuffer.Reset()
 
+	l := len(queueFiles)
+
 	var printed int
 	var line string
 	for i, entry := range queueFiles {
@@ -300,18 +301,12 @@ func updateQueue() {
 		writeListItemPrefix(&queueBuffer, queueFocused, queueCursor, i)
 
 		line = entry.String()
+		lineWidth := runewidth.StringWidth(line)
+		line = cview.Escape(line)
 
 		queueBuffer.WriteString(line)
 
-		if !queueFocused {
-			writeListItemSuffix(&queueBuffer, queueFocused, queueCursor, i)
-		}
-		for i := runewidth.StringWidth(line); i < screenWidth-2; i++ {
-			queueBuffer.WriteRune(' ')
-		}
-		if queueFocused {
-			writeListItemSuffix(&queueBuffer, queueFocused, queueCursor, i)
-		}
+		writeListItemSuffix(&queueBuffer, queueFocused, queueCursor, printed, i, l, lineWidth, queueHeight-2)
 
 		printed++
 		if printed == queueHeight-2 {
@@ -319,6 +314,17 @@ func updateQueue() {
 		}
 	}
 
+	remaining := (queueHeight - 2) - printed
+	for i := 0; i < remaining; i++ {
+		if printed > 0 {
+			queueBuffer.WriteRune('\n')
+		}
+
+		writeListItemSuffix(&queueBuffer, queueFocused, queueCursor, printed, remaining-printed, l, 0, queueHeight-2)
+
+		printed++
+	}
+
 	queuebuf.SetText(queueBuffer.String())
 }
 
@@ -334,14 +340,31 @@ func writeListItemPrefix(buffer *bytes.Buffer, focused bool, cursor int, i int)
 	}
 }
 
-func writeListItemSuffix(buffer *bytes.Buffer, focused bool, cursor int, i int) {
+func writeListItemSuffix(buffer *bytes.Buffer, focused bool, cursor int, printed int, i int, count int, lineWidth int, height int) {
+	if !focused && i == cursor {
+		buffer.WriteString("[-:-:-]")
+	}
+	for i := lineWidth; i < screenWidth-3; i++ {
+		buffer.WriteRune(' ')
+	}
+	if focused && i == cursor {
+		buffer.WriteString("[-:-:-]")
+	}
+
+	scrollBlockPos := int(float64(height-1) * (float64(cursor) / float64(count-1)))
 	if focused {
-		if i == cursor {
+		if printed == scrollBlockPos {
+			buffer.WriteString("[::r]")
+			buffer.WriteRune(' ')
 			buffer.WriteString("[-:-:-]")
+		} else {
+			buffer.WriteRune('▒')
 		}
 	} else {
-		if i == cursor {
-			buffer.WriteString("[-:-:-]")
+		if printed == scrollBlockPos {
+			buffer.WriteRune('▓')
+		} else {
+			buffer.WriteRune('░')
 		}
 	}
 }

gui_key.go

@@ -107,6 +107,6 @@ func setDefaultKeyBinds() {
 		actionNextPage:      {"PageDown"},
 		actionPreviousTrack: {"p"},
 		actionNextTrack:     {"n"},
-		actionExit:          {"Escape"},
+		actionExit:          {"Alt+q"},
 	}
 }

gui_list.go

@@ -6,42 +6,32 @@ import (
 )
 
 func listPrevious() {
-	if !queueFocused {
-		if mainBufferOrigin > 0 && mainBufferCursor == mainBufferOrigin {
-			mainBufferOrigin--
-		}
-		if mainBufferCursor > 0 {
-			mainBufferCursor--
-		}
-	} else {
-		if queueOrigin > 0 && queueCursor == queueOrigin {
-			queueOrigin--
-		}
-		if queueCursor > 0 {
-			queueCursor--
-		}
+	if queueFocused {
+		queuePrevious()
+		return
 	}
 
+	if mainBufferOrigin > 0 && mainBufferCursor == mainBufferOrigin {
+		mainBufferOrigin--
+	}
+	if mainBufferCursor > 0 {
+		mainBufferCursor--
+	}
 	go app.QueueUpdateDraw(updateLists)
 }
 
 func listNext() {
-	if !queueFocused {
-		if mainBufferCursor < len(mainBufferFiles) {
-			mainBufferCursor++
-			if mainBufferCursor-mainBufferOrigin > mainBufHeight-3 {
-				mainBufferOrigin++
-			}
-		}
-	} else {
-		if queueCursor < len(queueFiles)-1 {
-			queueCursor++
-			if queueCursor-queueOrigin > queueHeight-3 {
-				queueOrigin++
-			}
-		}
+	if queueFocused {
+		queueNext()
+		return
 	}
 
+	if mainBufferCursor < len(mainBufferFiles) {
+		mainBufferCursor++
+		if mainBufferCursor-mainBufferOrigin > mainBufHeight-3 {
+			mainBufferOrigin++
+		}
+	}
 	go app.QueueUpdateDraw(updateLists)
 }
 

library.go

@@ -23,11 +23,11 @@ func readMetadata(f *os.File) *metadata {
 
 	m, err := tag.ReadFrom(f)
 	if err != nil || m.Title() == "" {
-		metadata.Title = path.Base(f.Name())
+		metadata.Title = strings.TrimSpace(path.Base(f.Name()))
 	} else {
-		metadata.Title = m.Title()
-		metadata.Artist = m.Artist()
-		metadata.Album = m.Album()
+		metadata.Title = strings.TrimSpace(m.Title())
+		metadata.Artist = strings.TrimSpace(m.Artist())
+		metadata.Album = strings.TrimSpace(m.Album())
 		metadata.Track, _ = m.Track()
 	}
 
@@ -49,7 +49,7 @@ func (e *libraryEntry) String() string {
 		return e.Metadata.Title
 	}
 
-	return e.File.Name()
+	return strings.TrimSpace(e.File.Name())
 }
 
 func scanFolder(scanPath string) []*libraryEntry {
@@ -65,7 +65,7 @@ func scanFolder(scanPath string) []*libraryEntry {
 		b := path.Base(fileInfo.Name())
 		if fileInfo.IsDir() {
 			if b != "" && (b[0] != '.' || showHiddenFolders) {
-				entries = append(entries, &libraryEntry{File: fileInfo, Path: p, Metadata: &metadata{Title: fileInfo.Name()}})
+				entries = append(entries, &libraryEntry{File: fileInfo, Path: p, Metadata: &metadata{Title: strings.TrimSpace(fileInfo.Name())}})
 			}
 
 			continue