jf-roku/components/music/ArtistView.brs

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import "pkg:/source/utils/misc.brs"
sub init()
m.top.optionsAvailable = false
setupMainNode()
setupButtons()
m.remoteButtonsActive = true
m.albumHeader = m.top.findNode("albumHeader")
m.albumHeader.text = tr("Albums")
m.appearsOnHeader = m.top.findNode("appearsOnHeader")
m.appearsOnHeader.text = tr("AppearsOn")
m.appearsOn = m.top.findNode("appearsOn")
m.appearsOn.observeField("escape", "onAppearsOnEscape")
m.appearsOn.observeField("MusicArtistAlbumData", "onAppearsOnData")
m.albums = m.top.findNode("albums")
m.albums.observeField("escape", "onAlbumsEscape")
m.albums.observeField("MusicArtistAlbumData", "onAlbumsData")
m.pageLoadAnimation = m.top.findNode("pageLoad")
m.pageLoadAnimation.control = "start"
m.sectionNavigation = m.top.findNode("sectionNavigation")
m.sectionNavigation.observeField("escape", "onSectionNavigationEscape")
m.sectionNavigation.observeField("selected", "onSectionNavigationSelected")
m.sectionScroller = m.top.findNode("sectionScroller")
m.sectionScroller.observeField("displayedIndex", "onSectionScrollerChange")
m.overhang = m.top.getScene().findNode("overhang")
' Load background image
m.LoadBackdropImageTask = CreateObject("roSGNode", "LoadItemsTask")
m.LoadBackdropImageTask.itemsToLoad = "backdropImage"
m.backDrop = m.top.findNode("backdrop")
m.artistImage = m.top.findNode("artistImage")
m.dscr = m.top.findNode("overview")
m.dscr.observeField("isTextEllipsized", "onEllipsisChanged")
createDialogPallete()
end sub
sub onAlbumsData()
' We have no album data
if m.albums.MusicArtistAlbumData.TotalRecordCount = 0
m.sectionScroller.removeChild(m.top.findNode("albumsSlide"))
m.sectionNavigation.removeChild(m.top.findNode("albumsLink"))
m.top.findNode("appearsOnSlide").callFunc("scrollUpToOnDeck")
end if
end sub
sub onAppearsOnData()
' We have no appears on data
if m.appearsOn.MusicArtistAlbumData.TotalRecordCount = 0
m.sectionScroller.removeChild(m.top.findNode("appearsOnSlide"))
m.sectionNavigation.removeChild(m.top.findNode("appearsOnLink"))
end if
end sub
sub onSectionScrollerChange()
m.overhang.isVisible = (m.sectionScroller.displayedIndex = 0)
end sub
sub OnScreenShown()
m.sectionScroller.focus = true
if m.sectionScroller.displayedIndex = 0
m.previouslySelectedButtonIndex = m.top.selectedButtonIndex
m.top.selectedButtonIndex = 0
m.buttonGrp.setFocus(true)
else
m.overhang.opacity = "0"
m.overhang.isVisible = false
m.overhang.opacity = "1"
end if
end sub
sub OnScreenHidden()
if not m.overhang.isVisible
m.overhang.disableMoveAnimation = true
m.overhang.isVisible = true
m.overhang.disableMoveAnimation = false
m.overhang.opacity = "1"
end if
end sub
sub onAlbumsEscape()
if m.albums.escape = "up"
m.sectionNavigation.selected = m.sectionScroller.displayedIndex - 1
else if m.albums.escape = "left"
m.sectionNavigation.setFocus(true)
else if m.albums.escape = "down"
if m.sectionScroller.displayedIndex + 1 < m.sectionNavigation.getChildCount()
m.sectionNavigation.selected = m.sectionScroller.displayedIndex + 1
end if
end if
end sub
sub onAppearsOnEscape()
if m.appearsOn.escape = "up"
m.sectionNavigation.selected = m.sectionScroller.displayedIndex - 1
else if m.appearsOn.escape = "left"
m.sectionNavigation.setFocus(true)
end if
end sub
' Setup playback buttons, default to Play button selected
sub setupButtons()
m.buttonGrp = m.top.findNode("buttons")
m.buttonCount = m.buttonGrp.getChildCount()
m.playButton = m.top.findNode("play")
m.previouslySelectedButtonIndex = -1
m.top.observeField("selectedButtonIndex", "onButtonSelectedChange")
m.top.selectedButtonIndex = 0
end sub
' Event handler when user selected a different playback button
sub onButtonSelectedChange()
' Change previously selected button back to default image
if m.previouslySelectedButtonIndex > -1
previousSelectedButton = m.buttonGrp.getChild(m.previouslySelectedButtonIndex)
previousSelectedButton.focus = false
end if
' Change selected button image to selected image
selectedButton = m.buttonGrp.getChild(m.top.selectedButtonIndex)
selectedButton.focus = true
end sub
sub setupMainNode()
m.main = m.top.findNode("toplevel")
m.main.translation = [120, 175]
end sub
' Event fired when page data is loaded
sub pageContentChanged()
item = m.top.pageContent
' Use metadata to load backdrop image
m.LoadBackdropImageTask.itemId = item.json.id
m.LoadBackdropImageTask.observeField("content", "onBackdropImageLoaded")
m.LoadBackdropImageTask.control = "RUN"
' Populate scene data
setScreenTitle(item.json)
setPosterImage(item.posterURL)
end sub
sub setScreenTitle(json)
if isValid(json)
m.top.overhangTitle = json.name
end if
end sub
sub setPosterImage(posterURL)
if not isValid(posterURL) or posterURL = ""
posterURL = "pkg:/images/missingArtist.png"
end if
m.artistImage.uri = posterURL
end sub
sub onBackdropImageLoaded()
data = m.LoadBackdropImageTask.content[0]
m.LoadBackdropImageTask.unobserveField("content")
if isValid(data) and data <> ""
setBackdropImage(data)
end if
end sub
' Add backdrop image to screen
sub setBackdropImage(data)
if isValid(data)
if m.backDrop.uri <> data
m.backDrop.uri = data
end if
end if
end sub
' Event fired when page data is loaded
sub artistOverviewChanged()
overviewContent = m.top.artistOverview
if isValid(overviewContent)
setFieldTextValue("overview", overviewContent)
end if
end sub
sub onEllipsisChanged()
if m.dscr.isTextEllipsized
dscrShowFocus()
end if
end sub
sub onSectionNavigationEscape()
if m.sectionNavigation.escape = "right"
m.sectionNavigation.setFocus(false)
m.remoteButtonsActive = false
m.sectionScroller.focus = true
end if
end sub
sub onSectionNavigationSelected()
m.sectionScroller.displayedIndex = m.sectionNavigation.selected
end sub
sub dscrShowFocus()
if m.dscr.isTextEllipsized
m.dscr.setFocus(true)
m.dscr.opacity = 1.0
end if
end sub
sub createFullDscrDlg()
dlg = CreateObject("roSGNode", "OverviewDialog")
dlg.Title = tr("Press 'Back' to Close")
dlg.width = 1290
dlg.palette = m.dlgPalette
dlg.overview = [m.dscr.text]
m.fullDscrDlg = dlg
m.top.getScene().dialog = dlg
border = createObject("roSGNode", "Poster")
border.uri = "pkg:/images/hd_focul_9.png"
border.blendColor = "#c9c9c9ff"
border.width = dlg.width + 6
border.height = dlg.height + 6
border.translation = [dlg.translation[0] - 3, dlg.translation[1] - 3]
border.visible = true
end sub
sub createDialogPallete()
m.dlgPalette = createObject("roSGNode", "RSGPalette")
m.dlgPalette.colors = {
DialogBackgroundColor: "0x262828FF",
DialogItemColor: "0x00EF00FF",
DialogTextColor: "0xb0b0b0FF",
DialogFocusColor: "0xcececeFF",
DialogFocusItemColor: "0x202020FF",
DialogSecondaryTextColor: "0xf8f8f8ff",
DialogSecondaryItemColor: "0xcc7ecc4D",
DialogInputFieldColor: "0x80FF8080",
DialogKeyboardColor: "0x80FF804D",
DialogFootprintColor: "0x80FF804D"
}
end sub
function onKeyEvent(key as string, press as boolean) as boolean
if m.buttonGrp.isInFocusChain()
if key = "OK"
if press
selectedButton = m.buttonGrp.getChild(m.top.selectedButtonIndex)
selectedButton.selected = not selectedButton.selected
return true
end if
end if
if key = "left"
if m.top.selectedButtonIndex > 0
m.previouslySelectedButtonIndex = m.top.selectedButtonIndex
m.top.selectedButtonIndex = m.top.selectedButtonIndex - 1
return true
end if
if press
selectedButton = m.buttonGrp.getChild(m.top.selectedButtonIndex)
selectedButton.focus = false
m.sectionNavigation.setFocus(true)
return true
end if
return false
end if
if key = "right"
if m.top.pageContent.count() = 1 then return false
if m.buttonGrp.getChild(m.top.selectedButtonIndex).escape = "right"
m.buttonGrp.getChild(m.top.selectedButtonIndex).escape = ""
m.previouslySelectedButtonIndex = m.top.selectedButtonIndex
if m.top.selectedButtonIndex < m.buttonCount - 1
m.top.selectedButtonIndex = m.top.selectedButtonIndex + 1
end if
return true
end if
end if
if key = "down"
if m.sectionNavigation.getChildCount() > 1
selectedButton = m.buttonGrp.getChild(m.top.selectedButtonIndex)
selectedButton.focus = false
m.top.selectedButtonIndex = 0
m.sectionNavigation.selected = m.sectionScroller.displayedIndex + 1
end if
end if
end if
if not press then return false
if key = "options"
if m.dscr.isTextEllipsized
createFullDscrDlg()
return true
end if
end if
return false
end function