jf-roku/components/ItemGrid2/ItemGrid2.brs

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sub init()
m.options = m.top.findNode("options")
m.tvGuide = invalid
m.itemGrid = m.top.findNode("itemGrid")
m.backdrop = m.top.findNode("backdrop")
m.newBackdrop = m.top.findNode("backdropTransition")
m.emptyText = m.top.findNode("emptyText")
m.swapAnimation = m.top.findNode("backroundSwapAnimation")
m.swapAnimation.observeField("state", "swapDone")
m.loadedRows = 0
m.loadedItems = 0
m.data = CreateObject("roSGNode", "ContentNode")
m.itemGrid.content = m.data
m.itemGrid.setFocus(true)
m.itemGrid.observeField("itemFocused", "onItemFocused")
m.itemGrid.observeField("itemSelected", "onItemSelected")
m.newBackdrop.observeField("loadStatus", "newBGLoaded")
'Background Image Queued for loading
m.queuedBGUri = ""
'Item sort - maybe load defaults from user prefs?
m.sortField = "SortName"
m.sortAscending = true
m.filter = "All"
m.loadItemsTask = createObject("roSGNode", "LoadItemsTask2")
m.loadItemsTask.observeField("content", "ItemDataLoaded")
end sub
'
'Load initial set of Data
sub loadInitialItems()
if m.top.parentItem.backdropUrl <> invalid then
SetBackground(m.top.parentItem.backdropUrl)
end if
m.loadItemsTask.itemId = m.top.parentItem.Id
m.loadItemsTask.sortField = m.sortField
m.loadItemsTask.sortAscending = m.sortAscending
m.loadItemsTask.filter = m.filter
m.loadItemsTask.startIndex = 0
if m.top.parentItem.collectionType = "movies" then
m.loadItemsTask.itemType = "Movie"
else if m.top.parentItem.collectionType = "tvshows" then
m.loadItemsTask.itemType = "Series"
else if m.top.parentItem.collectionType = "livetv" then
m.loadItemsTask.itemType = "LiveTV"
'For LiveTV, we want to "Fit" the item images, not zoom
m.top.imageDisplayMode = "scaleToFit"
if get_user_setting("display.livetv.landing") = "guide" then
showTvGuid()
end if
else if m.top.parentItem.collectionType = "CollectionFolder" then
' Non-recursive, to not show subfolder contents
m.loadItemsTask.recursive = false
else if m.top.parentItem.collectionType = "Channel" then
m.top.imageDisplayMode = "scaleToFit"
else
print "Unknown Type: " m.top.parentItem
end if
m.loadItemsTask.control = "RUN"
SetUpOptions()
end sub
' Data to display when options button selected
sub SetUpOptions()
options = {}
options.filter = []
'Movies
if m.top.parentItem.collectionType = "movies" then
options.views = [
{ "Title": tr("Movies"), "Name": "movies" },
]
options.sort = [
{ "Title": tr("TITLE"), "Name": "SortName" },
{ "Title": tr("IMDB_RATING"), "Name": "CommunityRating" },
{ "Title": tr("CRITIC_RATING"), "Name": "CriticRating" },
{ "Title": tr("DATE_ADDED"), "Name": "DateCreated" },
{ "Title": tr("DATE_PLAYED"), "Name": "DatePlayed" },
{ "Title": tr("OFFICIAL_RATING"), "Name": "OfficialRating" },
{ "Title": tr("PLAY_COUNT"), "Name": "PlayCount" },
{ "Title": tr("RELEASE_DATE"), "Name": "PremiereDate" },
{ "Title": tr("RUNTIME"), "Name": "Runtime" }
]
options.filter = [
{ "Title": tr("All"), "Name": "All" },
{ "Title": tr("Favorites"), "Name": "Favorites" }
]
'TV Shows
else if m.top.parentItem.collectionType = "tvshows" then
options.views = [{ "Title": tr("Shows"), "Name": "shows" }]
options.sort = [
{ "Title": tr("TITLE"), "Name": "SortName" },
{ "Title": tr("IMDB_RATING"), "Name": "CommunityRating" },
{ "Title": tr("DATE_ADDED"), "Name": "DateCreated" },
{ "Title": tr("DATE_PLAYED"), "Name": "DatePlayed" },
{ "Title": tr("OFFICIAL_RATING"), "Name": "OfficialRating" },
{ "Title": tr("RELEASE_DATE"), "Name": "PremiereDate" },
]
options.filter = []
'Live TV
else if m.top.parentItem.collectionType = "livetv" then
options.views = [
{"Title": tr("Channels"), "Name": "livetv" },
{"Title": tr("TV Guide"), "Name": "tvGuide", "Selected": get_user_setting("display.livetv.landing") = "guide" }
]
options.sort = [
{ "Title": tr("TITLE"), "Name": "SortName" }
]
options.filter = []
else
options.views = [
{"Title": tr("Default"), "Name": "default" }
]
options.sort = [
{ "Title": tr("TITLE"), "Name": "SortName" }
]
options.filter = []
end if
for each o in options.sort
if o.Name = m.sortField then
o.Selected = true
o.Ascending = m.sortAscending
end if
end for
for each o in options.filter
if o.Name = m.filter then
o.Selected = true
end if
end for
m.options.options = options
end sub
'
'Handle loaded data, and add to Grid
sub ItemDataLoaded(msg)
itemData = msg.GetData()
data = msg.getField()
if itemData = invalid then
m.Loading = false
return
end if
for each item in itemData
m.data.appendChild(item)
end for
'Update the stored counts
m.loadedItems = m.itemGrid.content.getChildCount()
m.loadedRows = m.loadedItems / m.itemGrid.numColumns
m.Loading = false
'If there are no items to display, show message
if m.loadedItems = 0 then
m.emptyText.text = tr("NO_ITEMS").Replace("%1", m.top.parentItem.Type)
m.emptyText.visible = true
end if
m.itemGrid.setFocus(true)
end sub
'
'Set Background Image
sub SetBackground(backgroundUri as string)
'If a new image is being loaded, or transitioned to, store URL to load next
if m.swapAnimation.state <> "stopped" or m.newBackdrop.loadStatus = "loading" then
m.queuedBGUri = backgroundUri
return
end if
m.newBackdrop.uri = backgroundUri
end sub
'
'Handle new item being focused
sub onItemFocused()
focusedRow = CInt(m.itemGrid.itemFocused / m.itemGrid.numColumns) + 1
itemInt = m.itemGrid.itemFocused
' If no selected item, set background to parent backdrop
if itemInt = -1 then
return
end if
' Set Background to item backdrop
SetBackground(m.itemGrid.content.getChild(m.itemGrid.itemFocused).backdropUrl)
' Load more data if focus is within last 3 rows, and there are more items to load
if focusedRow >= m.loadedRows - 3 and m.loadeditems < m.loadItemsTask.totalRecordCount then
loadMoreData()
end if
end sub
'
'When Image Loading Status changes
sub newBGLoaded()
'If image load was sucessful, start the fade swap
if m.newBackdrop.loadStatus = "ready"
m.swapAnimation.control = "start"
end if
end sub
'
'Swap Complete
sub swapDone()
if m.swapAnimation.state = "stopped" then
'Set main BG node image and hide transitioning node
m.backdrop.uri = m.newBackdrop.uri
m.backdrop.opacity = 0.25
m.newBackdrop.opacity = 0
'If there is another one to load
if m.newBackdrop.uri <> m.queuedBGUri and m.queuedBGUri <> "" then
SetBackground(m.queuedBGUri)
m.queuedBGUri = ""
end if
end if
end sub
'
'Load next set of items
sub loadMoreData()
if m.Loading = true then return
m.Loading = true
m.loadItemsTask.startIndex = m.loadedItems
m.loadItemsTask.control = "RUN"
end sub
'
'Item Selected
sub onItemSelected()
m.top.selectedItem = m.itemGrid.content.getChild(m.itemGrid.itemSelected)
end sub
'
'Check if options updated and any reloading required
sub optionsClosed()
if (m.options.view = "tvGuide") then
showTVGuid()
return
else if m.tvGuide <> invalid then
' Try to hide the TV Guide
m.top.removeChild(m.tvGuide)
end if
reload = false
if m.options.sortField <> m.sortField or m.options.sortAscending <> m.sortAscending then
m.sortField = m.options.sortField
m.sortAscending = m.options.sortAscending
reload = true
end if
if m.options.filter <> m.filter then
m.filter = m.options.filter
reload = true
end if
if reload
m.loadedRows = 0
m.loadedItems = 0
m.data = CreateObject("roSGNode", "ContentNode")
m.itemGrid.content = m.data
loadInitialItems()
end if
m.itemGrid.setFocus(true)
end sub
sub showTVGuid()
m.top.signalBeacon("EPGLaunchInitiate") ' Required Roku Performance monitoring
if m.tvGuide = invalid then
m.tvGuide = createObject("roSGNode", "Schedule")
endif
m.tvGuide.observeField("watchChannel", "onChannelSelected")
m.top.appendChild(m.tvGuide)
m.tvGuide.lastFocus.setFocus(true)
end sub
sub onChannelSelected(msg)
node = msg.getRoSGNode()
m.top.lastFocus = lastFocusedChild(node)
if node.watchChannel <> invalid then
' Clone the node when it's reused/update in the TimeGrid it doesn't automatically start playing
m.top.selectedItem = node.watchChannel.clone(false)
end if
end sub
function onKeyEvent(key as string, press as boolean) as boolean
if not press then return false
if key = "options"
if m.options.visible = true then
m.options.visible = false
m.top.removeChild(m.options)
optionsClosed()
else
m.options.visible = true
m.top.appendChild(m.options)
m.options.setFocus(true)
end if
return true
else if key = "back" then
if m.options.visible = true then
m.options.visible = false
optionsClosed()
return true
end if
end if
return false
end function