save active artist page view in history

ui/browsing/artistpage.go

@@ -24,11 +24,13 @@ import (
 var _ fyne.Widget = (*ArtistPage)(nil)
 
 type artistPageState struct {
-	artistID string
-	pm       *backend.PlaybackManager
-	sm       *backend.ServerManager
-	im       *backend.ImageManager
-	contr    *controller.Controller
+	artistID   string
+	activeView int
+
+	pm    *backend.PlaybackManager
+	sm    *backend.ServerManager
+	im    *backend.ImageManager
+	contr *controller.Controller
 }
 
 type ArtistPage struct {
@@ -46,16 +48,22 @@ type ArtistPage struct {
 }
 
 func NewArtistPage(artistID string, pm *backend.PlaybackManager, sm *backend.ServerManager, im *backend.ImageManager, contr *controller.Controller) *ArtistPage {
+	return newArtistPage(artistID, pm, sm, im, contr, 0)
+}
+
+func newArtistPage(artistID string, pm *backend.PlaybackManager, sm *backend.ServerManager, im *backend.ImageManager, contr *controller.Controller, activeView int) *ArtistPage {
 	a := &ArtistPage{artistPageState: artistPageState{
-		artistID: artistID,
-		pm:       pm,
-		sm:       sm,
-		im:       im,
-		contr:    contr,
+		artistID:   artistID,
+		pm:         pm,
+		sm:         sm,
+		im:         im,
+		contr:      contr,
+		activeView: activeView,
 	}}
 	a.ExtendBaseWidget(a)
 	a.header = NewArtistPageHeader(a)
 	viewToggle := widgets.NewToggleText(0, []string{"Discography", "Top Tracks"})
+	viewToggle.SetActivatedLabel(a.activeView)
 	viewToggle.OnChanged = a.onViewChange
 	//line := canvas.NewLine(theme.TextColor())
 	viewToggleRow := container.NewBorder(nil, nil,
@@ -120,7 +128,11 @@ func (a *ArtistPage) load() {
 	}
 	a.artistInfo = artist
 	a.header.Update(artist)
-	a.showAlbumGrid()
+	if a.activeView == 0 {
+		a.showAlbumGrid()
+	} else {
+		a.showTopTracks()
+	}
 	info, err := a.sm.Server.GetArtistInfo2(a.artistID, nil)
 	if err != nil {
 		log.Printf("Failed to get artist info: %s", err.Error())
@@ -166,6 +178,7 @@ func (a *ArtistPage) onViewChange(num int) {
 		// so call it asynchronously
 		go a.showTopTracks()
 	}
+	a.activeView = num
 }
 
 func (a *ArtistPage) CreateRenderer() fyne.WidgetRenderer {
@@ -174,7 +187,7 @@ func (a *ArtistPage) CreateRenderer() fyne.WidgetRenderer {
 }
 
 func (s *artistPageState) Restore() Page {
-	return NewArtistPage(s.artistID, s.pm, s.sm, s.im, s.contr)
+	return newArtistPage(s.artistID, s.pm, s.sm, s.im, s.contr, s.activeView)
 }
 
 type ArtistPageHeader struct {

ui/widgets/toggletext.go

@@ -32,6 +32,20 @@ func NewToggleText(activeLblIdx int, labels []string) *ToggleText {
 	return t
 }
 
+func (t *ToggleText) SetActivatedLabel(idx int) {
+	changed := t.activeLabelIdx != idx
+	// update old label to hyperlink
+	hl := widget.NewHyperlink(t.labels[t.activeLabelIdx], nil)
+	hl.OnTapped = t.buildOnTapped(t.activeLabelIdx)
+	t.container.Objects[t.activeLabelIdx] = hl
+	// update activated label to bold text
+	t.container.Objects[idx] = t.newBoldRichText(t.labels[idx])
+	t.activeLabelIdx = idx
+	if changed {
+		t.Refresh()
+	}
+}
+
 func (t *ToggleText) buildOnTapped(i int) func() {
 	return func() {
 		t.onActivated(i)
@@ -46,18 +60,9 @@ func (t *ToggleText) newBoldRichText(text string) *widget.RichText {
 }
 
 func (t *ToggleText) onActivated(idx int) {
-	if idx == t.activeLabelIdx {
-		return
-	}
-	// update old label to hyperlink
-	hl := widget.NewHyperlink(t.labels[t.activeLabelIdx], nil)
-	hl.OnTapped = t.buildOnTapped(t.activeLabelIdx)
-	t.container.Objects[t.activeLabelIdx] = hl
-	// update activated label to bold text
-	t.container.Objects[idx] = t.newBoldRichText(t.labels[idx])
-	t.activeLabelIdx = idx
-	t.Refresh()
-	if t.OnChanged != nil {
+	changed := t.activeLabelIdx != idx
+	t.SetActivatedLabel(idx)
+	if changed && t.OnChanged != nil {
 		t.OnChanged(t.activeLabelIdx)
 	}
 }