beginning work on browse by favorite artists and songs

ui/browsing/favoritespage.go

@@ -1,7 +1,9 @@
 package browsing
 
 import (
+	"log"
 	"supersonic/backend"
+	"supersonic/res"
 	"supersonic/ui/widgets"
 	"time"
 
@@ -26,6 +28,7 @@ type FavoritesPage struct {
 	searcher   *widgets.Searcher
 	searchText string
 	titleDisp  *widget.RichText
+	toggleBtns *widgets.ToggleButtonGroup
 	container  *fyne.Container
 }
 
@@ -46,6 +49,7 @@ func NewFavoritesPage(sm *backend.ServerManager, pm *backend.PlaybackManager, lm
 	a.grid.OnShowArtistPage = a.onShowArtistPage
 	a.searcher = widgets.NewSearcher()
 	a.searcher.OnSearched = a.OnSearched
+	a.createToggleButtons(0)
 	a.createContainer(false)
 	return a
 }
@@ -57,6 +61,19 @@ func (a *FavoritesPage) createTitle() {
 	}
 }
 
+func (a *FavoritesPage) createToggleButtons(activeBtnIdx int) {
+	a.toggleBtns = widgets.NewToggleButtonGroup(activeBtnIdx,
+		widget.NewButtonWithIcon("", res.ResDiscInvertPng, func() {
+			log.Println("albums activated")
+		}),
+		widget.NewButtonWithIcon("", res.ResPeopleInvertPng, func() {
+			log.Println("artists activated")
+		}),
+		widget.NewButtonWithIcon("", res.ResMusicnotesInvertPng, func() {
+			log.Println("songs activated")
+		}))
+}
+
 func (a *FavoritesPage) createContainer(searchGrid bool) {
 	searchVbox := container.NewVBox(layout.NewSpacer(), a.searcher.Entry, layout.NewSpacer())
 	gr := a.grid
@@ -64,7 +81,7 @@ func (a *FavoritesPage) createContainer(searchGrid bool) {
 		gr = a.searchGrid
 	}
 	a.container = container.NewBorder(
-		container.NewHBox(widgets.NewHSpace(9), a.titleDisp, layout.NewSpacer(), searchVbox, widgets.NewHSpace(15)),
+		container.NewHBox(widgets.NewHSpace(9), a.titleDisp, container.NewCenter(a.toggleBtns), layout.NewSpacer(), searchVbox, widgets.NewHSpace(15)),
 		nil, nil, nil, gr)
 }
 
@@ -88,6 +105,7 @@ func restoreFavoritesPage(saved *savedFavoritesPage) *FavoritesPage {
 	if saved.searchText != "" {
 		a.searchGrid = widgets.NewAlbumGridFromState(saved.searchGridState)
 	}
+	a.createToggleButtons(saved.activeToggleBtn)
 	a.createContainer(saved.searchText != "")
 
 	return a
@@ -114,6 +132,7 @@ func (a *FavoritesPage) Save() SavedPage {
 		nav:             a.nav,
 		searchText:      a.searchText,
 		gridState:       a.grid.SaveToState(),
+		activeToggleBtn: a.toggleBtns.ActivatedButtonIndex(),
 	}
 	if a.searchGrid != nil {
 		sf.searchGridState = a.searchGrid.SaveToState()
@@ -181,6 +200,7 @@ type savedFavoritesPage struct {
 	gridState       widgets.AlbumGridState
 	searchGridState widgets.AlbumGridState
 	searchText      string
+	activeToggleBtn int
 	nav             func(Route)
 }
 

ui/layouts/hboxcustompadding.go

@@ -0,0 +1,58 @@
+package layouts
+
+import (
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/theme"
+)
+
+var _ fyne.Layout = (*VboxCustomPadding)(nil)
+
+type HboxCustomPadding struct {
+	ExtraPad        float32
+	DisableThemePad bool
+}
+
+func (v *HboxCustomPadding) MinSize(objects []fyne.CanvasObject) fyne.Size {
+	minSize := fyne.NewSize(0, 0)
+	for _, child := range objects {
+		if !child.Visible() {
+			continue
+		}
+
+		minSize.Height = fyne.Max(child.MinSize().Height, minSize.Height)
+		minSize.Width += child.MinSize().Width
+	}
+	minSize.Width += (v.themePad() + v.ExtraPad) * float32(len(objects)-1)
+	return minSize
+}
+
+func (v *HboxCustomPadding) Layout(objects []fyne.CanvasObject, size fyne.Size) {
+	total := float32(0)
+	for _, child := range objects {
+		if !child.Visible() {
+			continue
+		}
+		total += child.MinSize().Width
+	}
+
+	x, y := float32(0), float32(0)
+
+	extra := float32(0)
+	for _, child := range objects {
+		if !child.Visible() {
+			continue
+		}
+		width := child.MinSize().Width
+		child.Move(fyne.NewPos(x+extra, y))
+		x += width
+		child.Resize(fyne.NewSize(width, size.Height))
+		extra += (v.themePad() + v.ExtraPad)
+	}
+}
+
+func (v *HboxCustomPadding) themePad() float32 {
+	if v.DisableThemePad {
+		return 0
+	}
+	return theme.Padding()
+}

ui/widgets/togglebuttongroup.go

@@ -0,0 +1,64 @@
+package widgets
+
+import (
+	"supersonic/ui/layouts"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/widget"
+)
+
+type ToggleButtonGroup struct {
+	widget.BaseWidget
+
+	buttonContainer *fyne.Container
+
+	activeBtnIdx int
+}
+
+func NewToggleButtonGroup(activatedBtnIdx int, buttons ...*widget.Button) *ToggleButtonGroup {
+	t := &ToggleButtonGroup{}
+	t.ExtendBaseWidget(t)
+	t.buttonContainer = container.New(&layouts.HboxCustomPadding{DisableThemePad: true})
+	for i, b := range buttons {
+		b.Importance = widget.MediumImportance
+		t.buttonContainer.Add(b)
+		prevOnTapped := b.OnTapped
+		b.OnTapped = func(i int) func() {
+			return func() {
+				if t.onTapped(i) && prevOnTapped != nil {
+					prevOnTapped()
+				}
+			}
+		}(i)
+	}
+	if activatedBtnIdx >= 0 && activatedBtnIdx <= len(buttons) {
+		buttons[activatedBtnIdx].Importance = widget.HighImportance
+	}
+
+	return t
+}
+
+func (t *ToggleButtonGroup) ActivatedButtonIndex() int {
+	return t.activeBtnIdx
+}
+
+func (t *ToggleButtonGroup) onTapped(btnIdx int) bool {
+	for i, b := range t.buttonContainer.Objects {
+		if i == btnIdx {
+			b.(*widget.Button).Importance = widget.HighImportance
+		} else {
+			b.(*widget.Button).Importance = widget.MediumImportance
+		}
+	}
+	changed := t.activeBtnIdx != btnIdx
+	t.activeBtnIdx = btnIdx
+	if changed {
+		t.Refresh()
+	}
+	return changed
+}
+
+func (t *ToggleButtonGroup) CreateRenderer() fyne.WidgetRenderer {
+	return widget.NewSimpleRenderer(t.buttonContainer)
+}