@@ -28,345 +28,175 @@ class TimelineModel: ObservableObject, UndoableCommandRunner {
@ Published var nameForDisplay = " "
@ Published var selectedArticleIDs = Set < String > ( ) // D o n ' t u s e d i r e c t l y . U s e s e l e c t e d A r t i c l e s
@ Published var selectedArticleID : String ? = nil // D o n ' t u s e d i r e c t l y . U s e s e l e c t e d A r t i c l e s
@ Published var selectedArticles = [ Article ] ( )
@ Published var selectedTimelineItems = [ TimelineItem ] ( )
@ Published var readFilterEnabledTable = [ FeedIdentifier : Bool ] ( )
@ Published var isReadFiltered : Bool ? = nil
@ Published var articles = [ Article ] ( ) {
didSet {
articleDictionaryNeedsUpdate = true
}
}
@ Published var timelineItems = [ TimelineItem ] ( ) {
didSet {
timelineItemDictionaryNeedsUpdate = true
}
}
var timelineItemsPublisher : AnyPublisher < [ TimelineItem ] , Never > ?
var selectedTimelineItemsPublisher : AnyPublisher < [ TimelineItem ] , Never > ?
var readFilterEnabledTable = [ FeedIdentifier : Bool ] ( )
// I d o n ' t l i k e t h i s f l a g a n d f e e l l i k e i t i s a h a c k . M a y b e t h e r e i s a b e t t e r w a y t o d o t h i s u s i n g C o m b i n e .
var isSelectNextUnread = false
var undoManager : UndoManager ?
var undoableCommands = [ UndoableCommand ] ( )
private var cancellables = Set < AnyCancellable > ( )
private var feeds = [ Feed ] ( )
private var fetchSerialNumber = 0
private let fetchRequestQueue = FetchRequestQueue ( )
private var exceptionArticleFetcher : ArticleFetcher ?
static let fetchAndMergeArticlesQueue = CoalescingQueue ( name : " Fetch and Merge Articles " , interval : 0.5 , maxInterval : 2.0 )
private var articleDictionaryNeedsUpdate = true
private var _idToArticleDictionary = [ String : Article ] ( )
private var idToArticleDictionary : [ String : Article ] {
if articleDictionaryNeedsUpdate {
rebuildArticleDictionaries ( )
}
return _idToArticleDictionary
}
private var timelineItemDictionaryNeedsUpdate = true
private var _idToTimelineItemDictionary = [ String : Int ] ( )
private var idToTimelineItemDictionary : [ String : Int ] {
if timelineItemDictionaryNeedsUpdate {
rebuildTimelineItemDictionaries ( )
}
return _idToTimelineItemDictionary
}
private var sortDirection = AppDefaults . shared . timelineSortDirection {
didSet {
if sortDirection != oldValue {
sortParametersDidChange ( )
}
}
}
private var sortDirectionSubject = PassthroughSubject < Bool , Never > ( )
private var groupByFeedSubject = PassthroughSubject < Bool , Never > ( )
private var groupByFeed = AppDefaults . shared . timelineGroupByFeed {
didSet {
if groupByFeed != oldValue {
sortParametersDidChange ( )
}
}
}
func startup ( ) {
subscribeToArticleStatusChanges ( )
init ( delegate : TimelineModelDelegate ) {
self . delegate = delegate
// s u b s c r i b e T o A r t i c l e S t a t u s C h a n g e s ( )
subscribeToUserDefaultsChanges ( )
subscribeToSelectedFeed Changes ( )
subscribeToArticleFetch Changes ( )
subscribeToSelectedArticleSelectionChanges ( )
subscribeToAccountDidDownloadArticle s
// s u b s c r i b e T o A c c o u n t D i d D o w n l o a d A r t i c l e
}
// MARK: S u b s c r i p t i o n s
func subscribeToArticleStatusChange s
NotificationCente r defaul tpublishe rfo r . StatusesDidChang e sink { [ weak sel f note i n
guard let self = sel f let articleIDs = not e userInf oAccoun tUserInfoKe yarticleID s a s Se t Strin g else
retur n
articleID s forEach { articleID i n
if let timelineItemIndex = sel f idToTimelineItemDictionar yarticleI D
sel f timelineItem stimelineItemInde xupdateStatu s
stor ei n & cancellable s
// f u n c s u b s c r i b e T o A r t i c l e S t a t u s C h a n g e
// N o t i f i c a t i o n C e n t e d e f a u l p u b l i s h e f o . S t a t u s e s D i d C h a n g s i n k { [ w e a k s e l n o t e i
// g u a r d l e t s e l f = s e l l e t a r t i c l e I D s = n o t u s e r I n f A c c o u n U s e r I n f o K e a r t i c l e I D a S e S t r i n e l s e
// r e t u r
//
// a r t i c l e I D f o r E a c h { a r t i c l e I D i
// i f l e t t i m e l i n e I t e m I n d e x = s e l i d T o T i m e l i n e I t e m D i c t i o n a r a r t i c l e I
// s e l t i m e l i n e I t e m t i m e l i n e I t e m I n d e u p d a t e S t a t u
//
//
// s t o r i & c a n c e l l a b l e
//
func subscribeToAccountDidDownloadArticle s
NotificationCente r defaul tpublishe rfo r . AccountDidDownloadArticle s sink { [ weak sel f note i n
guard let self = sel f let feeds = not e userInf oAccoun tUserInfoKe ywebFeed s a s Se t WebFee d else
retur n
if sel f anySelectedFeedIntersectio nwit h feed s || sel f anySelectedFeedIsPseudoFee d
sel f queueFetchAndMergeArticle s
stor ei n & cancellable s
// f u n c s u b s c r i b e T o A c c o u n t D i d D o w n l o a d A r t i c l e
// N o t i f i c a t i o n C e n t e d e f a u l p u b l i s h e f o . A c c o u n t D i d D o w n l o a d A r t i c l e s i n k { [ w e a k s e l n o t e i
// g u a r d l e t s e l f = s e l l e t f e e d s = n o t u s e r I n f A c c o u n U s e r I n f o K e w e b F e e d a S e W e b F e e e l s e
// r e t u r
//
// i f s e l a n y S e l e c t e d F e e d I n t e r s e c t i o w i t f e e d | | s e l a n y S e l e c t e d F e e d I s P s e u d o F e e
// s e l q u e u e F e t c h A n d M e r g e A r t i c l e
//
// s t o r i & c a n c e l l a b l e
//
func subscribeToUserDefaultsChanges ( ) {
NotificationCenter . default . publisher ( for : UserDefaults . didChangeNotification ) . sink { [ weak self ] _ in
self ? . sortDirection = AppD efaults . shared . timelineSortDirec tion
self ? . groupByFeed = AppDefaults . shared . timelineGroupByFeed
let kickStartNote = Notification ( name : Notification . Name ( " Kick Start " ) )
NotificationCenter . d efault. publisher ( for : UserDefaults . didChangeNotifica tion)
. prepend ( kickStartNote )
. sink { [ weak self ] _ in
self ? . sortDirectionSubject . send ( AppDefaults . shared . timelineSortDirection )
self ? . groupByFeedSubject . send ( AppDefaults . shared . timelineGroupByFeed )
} . store ( in : & cancellables )
}
func subscribeToSelectedFeed Changes ( ) {
func subscribeToArticleFetch Changes ( ) {
guard let selectedFeedsPublisher = delegate ? . selectedFeedsPublisher else { return }
selectedFeedsPublisher . sink { [ weak self ] feeds in
guard let self = self else { return }
self . feeds = feeds
self . fetchArticles ( )
} . store ( in : & cancellab les )
let sortDirectionPublisher = sortDirectionSubject . removeDuplicates ( )
let groupByPublisher = groupByFeedSubject . removeDuplicates ( )
timelineItemsPublisher = selectedFeedsPublisher
. map { [ weak self ] feeds -> Set < Artic le > in
return self ? . fetchArticles ( feeds : feeds ) ? ? Set < Article > ( )
}
. combineLatest ( $ isReadFiltered , sortDirectionPublisher , groupByPublisher )
. compactMap { [ weak self ] articles , filtered , sortDirection , groupBy -> [ TimelineItem ] in
let sortedArticles = Array ( articles ) . sortedByDate ( sortDirection ? . orderedDescending : . orderedAscending , groupByFeed : groupBy )
return self ? . buildTimelineItems ( articles : sortedArticles ) ? ? [ TimelineItem ] ( )
}
. eraseToAnyPublisher ( )
}
func subscribeToSelectedArticleSelectionChanges ( ) {
$ selectedArticleID s map { [ weak sel f articleIDs i n
return articleID s compactMap { sel fidToArticleDictionar y$ 0
. assig n t o selectedArticle s
$ selectedArticleI D compactMap { [ weak sel f articleID i n
if let articleID = articleI D let article = sel f idToArticleDictionar yarticleI D
return [ articl e
} else
return ni l
. assig n t o selectedArticle s
// A s s i g n t h e s e l e c t e d t i m e l i n e i t e m s
$ selectedArticle s compactMap { [ weak sel f selectedArticles i n
return selectedArticle s compactMap
if let index = sel f idToTimelineItemDictionar y$ 0articleI D
return sel f timelineItem sinde x
return ni l
assig nt o selectedTimelineItem s
// A u t o m a t i c a l l y m a r k a s e l e c t e d r e c o r d a s r e a d
$ selectedArticle s
. filter { $ 0 count 1
. compactMap { $ 0 first
. filter { ! $ 0 statu sread
. sink { markArticle s Se t$ 0 statusKe y . rea d fla g tru e
. stor e i n & cancellable s
// $ s e l e c t e d A r t i c l e I D m a p { [ w e a k s e l a r t i c l e I D s i
// r e t u r n a r t i c l e I D c o m p a c t M a p { s e l i d T o A r t i c l e D i c t i o n a r $
//
// . a s s i g t s e l e c t e d A r t i c l e
//
// $ s e l e c t e d A r t i c l e I c o m p a c t M a p { [ w e a k s e l a r t i c l e I D i
// i f l e t a r t i c l e I D = a r t i c l e I l e t a r t i c l e = s e l i d T o A r t i c l e D i c t i o n a r a r t i c l e I
// r e t u r n [ a r t i c l
// } e l s e
// r e t u r n n i
//
//
// . a s s i g t s e l e c t e d A r t i c l e
//
// / A s s i g n t h e s e l e c t e d t i m e l i n e i t e m s
// $ s e l e c t e d A r t i c l e c o m p a c t M a p { [ w e a k s e l s e l e c t e d A r t i c l e s i
// r e t u r n s e l e c t e d A r t i c l e c o m p a c t M a p
// i f l e t i n d e x = s e l i d T o T i m e l i n e I t e m D i c t i o n a r $ a r t i c l e I
// r e t u r n s e l t i m e l i n e I t e m i n d e
//
// r e t u r n n i
//
// a s s i g t s e l e c t e d T i m e l i n e I t e m
//
// / A u t o m a t i c a l l y m a r k a s e l e c t e d r e c o r d a s r e a d
// $ s e l e c t e d A r t i c l e
// . f i l t e r { $ c o u n t 1
// . c o m p a c t M a p { $ f i r s t
// . f i l t e r { ! $ s t a t u r e a d
// . s i n k { m a r k A r t i c l e S e $ s t a t u s K e . r e a f l a t r u
// . s t o r i & c a n c e l l a b l e
}
// MARK: A P I
func toggleReadFilter ( ) {
guard let filter = isReadFiltere d let feedID = feed s firs tfeedID else { return
readFilterEnabledTabl e feedI D = ! filte r
isReadFiltered = ! filte r
sel f fetchArticle s
// g u a r d l e t f i l t e r = i s R e a d F i l t e r e l e t f e e d I D = f e e d f i r s f e e d I D e l s e { r e t u r n
// r e a d F i l t e r E n a b l e d T a b l f e e d I = ! f i l t e
// i s R e a d F i l t e r e d = ! f i l t e
// s e l f e t c h A r t i c l e
}
func toggleReadStatusForSelectedArticles ( ) {
guard ! selectedArticle s isEmpty else
retur n
if selectedArticle s anyArticleIsUnrea d
markSelectedArticlesAsRea d
} else
markSelectedArticlesAsUnrea d
}
func canMarkIndicatedArticlesAsRead ( _ timelineItem : TimelineItem ) -> Bool {
let articles = indicatedTimelineItems ( timelineItem ) . map { $0 . article }
return articles . anyArticleIsUnread ( )
}
func markIndicatedArticlesAsRead ( _ timelineItem : TimelineItem ) {
let articles = indicatedTimelineItems ( timelineItem ) . map { $0 . article }
markArticlesWithUndo ( articles , statusKey : . read , flag : true )
}
func markSelectedArticlesAsRead ( ) {
markArticlesWithUndo ( selectedArticles , statusKey : . read , flag : true )
}
func canMarkIndicatedArticlesAsUnread ( _ timelineItem : TimelineItem ) -> Bool {
let articles = indicatedTimelineItems ( timelineItem ) . map { $0 . article }
return articles . anyArticleIsReadAndCanMarkUnread ( )
}
func markIndicatedArticlesAsUnread ( _ timelineItem : TimelineItem ) {
let articles = indicatedTimelineItems ( timelineItem ) . map { $0 . article }
markArticlesWithUndo ( articles , statusKey : . read , flag : false )
}
func markSelectedArticlesAsUnread ( ) {
markArticlesWithUndo ( selectedArticles , statusKey : . read , flag : false )
}
func canMarkAboveAsRead ( _ timelineItem : TimelineItem ) -> Bool {
let timelineItem = indicatedAboveTimelineItem ( timelineItem )
return articles . articlesAbove ( position : timelineItem . index ) . canMarkAllAsRead ( )
}
func markAboveAsRead ( _ timelineItem : TimelineItem ) {
let timelineItem = indicatedAboveTimelineItem ( timelineItem )
let articlesToMark = articles . articlesAbove ( position : timelineItem . index )
guard ! articlesToMark . isEmpty else { return }
markArticlesWithUndo ( articlesToMark , statusKey : . read , flag : true )
}
func canMarkBelowAsRead ( _ timelineItem : TimelineItem ) -> Bool {
let timelineItem = indicatedBelowTimelineItem ( timelineItem )
return articles . articlesBelow ( position : timelineItem . index ) . canMarkAllAsRead ( )
}
func markBelowAsRead ( _ timelineItem : TimelineItem ) {
let timelineItem = indicatedBelowTimelineItem ( timelineItem )
let articlesToMark = articles . articlesBelow ( position : timelineItem . index )
guard ! articlesToMark . isEmpty else { return }
markArticlesWithUndo ( articlesToMark , statusKey : . read , flag : true )
}
func canMarkAllAsReadInWebFeed ( _ timelineItem : TimelineItem ) -> Bool {
return timelineItem . article . webFeed ? . unreadCount ? ? 0 > 0
}
func markAllAsReadInWebFeed ( _ timelineItem : TimelineItem ) {
guard let articlesSet = try ? timelineItem . article . webFeed ? . fetchArticles ( ) else { return }
let articlesToMark = Array ( articlesSet )
markArticlesWithUndo ( articlesToMark , statusKey : . read , flag : true )
}
func canMarkAllAsRead ( ) -> Bool {
return articles . canMarkAllAsRead ( )
}
func markAllAsRead ( ) {
markArticlesWithUndo ( articles , statusKey : . read , flag : true )
}
func toggleStarredStatusForSelectedArticles ( ) {
guard ! selectedArticles . isEmpty else {
return
}
if selectedArticles . anyArticleIsUnstarred ( ) {
markSelectedArticlesAsStarred ( )
} else {
markSelectedArticlesAsUnstarred ( )
}
}
func canMarkIndicatedArticlesAsStarred ( _ timelineItem : TimelineItem ) -> Bool {
let articles = indicatedTimelineItems ( timelineItem ) . map { $0 . article }
return articles . anyArticleIsUnstarred ( )
}
func markIndicatedArticlesAsStarred ( _ timelineItem : TimelineItem ) {
let articles = indicatedTimelineItems ( timelineItem ) . map { $0 . article }
markArticlesWithUndo ( articles , statusKey : . starred , flag : true )
}
func markSelectedArticlesAsStarred ( ) {
markArticlesWithUndo ( selectedArticles , statusKey : . starred , flag : true )
}
func canMarkIndicatedArticlesAsUnstarred ( _ timelineItem : TimelineItem ) -> Bool {
let articles = indicatedTimelineItems ( timelineItem ) . map { $0 . article }
return articles . anyArticleIsStarred ( )
}
func markIndicatedArticlesAsUnstarred ( _ timelineItem : TimelineItem ) {
let articles = indicatedTimelineItems ( timelineItem ) . map { $0 . article }
markArticlesWithUndo ( articles , statusKey : . starred , flag : false )
}
func markSelectedArticlesAsUnstarred ( ) {
markArticlesWithUndo ( selectedArticles , statusKey : . starred , flag : false )
}
func canOpenIndicatedArticleInBrowser ( _ timelineItem : TimelineItem ) -> Bool {
guard indicatedTimelineItems ( timelineItem ) . count = = 1 else { return false }
return timelineItem . article . preferredLink != nil
}
func openIndicatedArticleInBrowser ( _ timelineItem : TimelineItem ) {
openIndicatedArticleInBrowser ( timelineItem . article )
}
func openIndicatedArticleInBrowser ( _ article : Article ) {
guard let link = article . preferredLink else { return }
#if os ( macOS )
Browser . open ( link , invertPreference : NSApp . currentEvent ? . modifierFlags . contains ( . shift ) ? ? false )
#else
guard let url = URL ( string : link ) else { return }
UIApplication . shared . open ( url , options : [ : ] )
#endif
}
func openSelectedArticleInBrowser ( ) {
guard let article = selectedArticles . first else { return }
openIndicatedArticleInBrowser ( article )
// g u a r d ! s e l e c t e d A r t i c l e i s E m p t y e l s e
// r e t u r
//
// i f s e l e c t e d A r t i c l e a n y A r t i c l e I s U n r e a
// m a r k S e l e c t e d A r t i c l e s A s R e a
// } e l s e
// m a r k S e l e c t e d A r t i c l e s A s U n r e a
//
}
@ discardableResult
func goToNextUnread ( ) -> Bool {
var startInde x In t
if let firstArticle = selectedArticle s firs t let index = timelineItem s firstInde xwher e { $ 0 article firstArticle
startIndex = inde x
} else
startIndex =
for i in startInde x timelineItem scount
if ! timelineItem s articl estatu sread
selec t timelineItem sarticl earticleI D
return tru e
// v a r s t a r t I n d e I n
// i f l e t f i r s t A r t i c l e = s e l e c t e d A r t i c l e f i r s l e t i n d e x = t i m e l i n e I t e m f i r s t I n d e w h e r { $ a r t i c l e f i r s t A r t i c l e
// s t a r t I n d e x = i n d e
// } e l s e
// s t a r t I n d e x =
//
//
// f o r i i n s t a r t I n d e t i m e l i n e I t e m c o u n t
// i f ! t i m e l i n e I t e m a r t i c l s t a t u r e a d
// s e l e c t i m e l i n e I t e m a r t i c l a r t i c l e I
// r e t u r n t r u
//
//
//
return false
}
func articleFor ( _ articleID : String ) -> Article ? {
return idToArticleDictionary [ articleID ]
return nil
// r e t u r n i d T o A r t i c l e D i c t i o n a r y [ a r t i c l e I D ]
}
func findPrevArticle ( _ article : Article ) -> Article ? {
guard let index = articles . firstIndex ( of : article ) , index > 0 else {
return nil
}
return articles [ index - 1 ]
return nil
// g u a r d l e t i n d e x = a r t i c l e s . f i r s t I n d e x ( o f : a r t i c l e ) , i n d e x > 0 e l s e {
// r e t u r n n i l
// }
// r e t u r n a r t i c l e s [ i n d e x - 1 ]
}
func findNextArticle ( _ article : Article ) -> Article ? {
guard let index = articles . firstIndex ( of : article ) , index + 1 != articles . count else {
return nil
}
return articles [ index + 1 ]
return nil
// g u a r d l e t i n d e x = a r t i c l e s . f i r s t I n d e x ( o f : a r t i c l e ) , i n d e x + 1 ! = a r t i c l e s . c o u n t e l s e {
// r e t u r n n i l
// }
// r e t u r n a r t i c l e s [ i n d e x + 1 ]
}
func selectArticle ( _ article : Article ) {
@@ -379,30 +209,6 @@ class TimelineModel: ObservableObject, UndoableCommandRunner {
private extension TimelineModel {
func indicatedTimelineItems ( _ timelineItem : TimelineItem ) -> [ TimelineItem ] {
if selectedTimelineItems . contains ( where : { $0 . id = = timelineItem . id } ) {
return selectedTimelineItems
} else {
return [ timelineItem ]
}
}
func indicatedAboveTimelineItem ( _ timelineItem : TimelineItem ) -> TimelineItem {
if selectedTimelineItems . contains ( where : { $0 . id = = timelineItem . id } ) {
return selectedTimelineItems . first !
} else {
return timelineItem
}
}
func indicatedBelowTimelineItem ( _ timelineItem : TimelineItem ) -> TimelineItem {
if selectedTimelineItems . contains ( where : { $0 . id = = timelineItem . id } ) {
return selectedTimelineItems . last !
} else {
return timelineItem
}
}
func markArticlesWithUndo ( _ articles : [ Article ] , statusKey : ArticleStatus . Key , flag : Bool ) {
if let undoManager = undoManager , let markReadCommand = MarkStatusCommand ( initialArticles : articles , statusKey : statusKey , flag : flag , undoManager : undoManager ) {
runCommand ( markReadCommand )
@@ -411,227 +217,92 @@ private extension TimelineModel {
}
}
func select ( _ articleID : String ) {
selectedArticleIDs = Set ( [ articleID ] )
selectedArticleID = articleID
}
// MARK: T i m e l i n e M a n a g e m e n t
func resetReadFilte r
guard feed s count let timelineFeed = feed s first else
isReadFiltered = ni l
retur n
guard timelineFee d defaultReadFilterType != . alwaysRead else
isReadFiltered = ni l
retur n
if let feedID = timelineFee d feedI D let readFilterEnabled = readFilterEnabledTabl e feedI D
isReadFiltered = readFilterEnable d
} else
isReadFiltered = timelineFee d defaultReadFilterType . rea d
// f u n c r e s e t R e a d F i l t e
// g u a r d f e e d c o u n t l e t t i m e l i n e F e e d = f e e d f i r s t e l s e
// i s R e a d F i l t e r e d = n i
// r e t u r
//
//
// g u a r d t i m e l i n e F e e d e f a u l t R e a d F i l t e r T y p e ! = . a l w a y s R e a d e l s e
// i s R e a d F i l t e r e d = n i
// r e t u r
//
//
// i f l e t f e e d I D = t i m e l i n e F e e f e e d I l e t r e a d F i l t e r E n a b l e d = r e a d F i l t e r E n a b l e d T a b l f e e d I
// i s R e a d F i l t e r e d = r e a d F i l t e r E n a b l e
// } e l s e
// i s R e a d F i l t e r e d = t i m e l i n e F e e d e f a u l t R e a d F i l t e r T y p e . r e a
//
//
func sortParametersDidChange ( ) {
performBlockAndRestoreSelection
articles = article s sortedByDat esortDirection ? . orderedDescending : . orderedAscendin g groupByFee d groupByFee d
rebuildTimelineItem s
// p e r f o r m B l o c k A n d R e s t o r e S e l e c t i o n
// a r t i c l e s = a r t i c l e s o r t e d B y D a t s o r t D i r e c t i o n ? . o r d e r e d D e s c e n d i n g : . o r d e r e d A s c e n d i n g r o u p B y F e e g r o u p B y F e e
// r e b u i l d T i m e l i n e I t e m
//
}
func performBlockAndRestoreSelection ( _ block : ( ( ) -> Void ) ) {
let savedArticleIDs = selectedArticleID s
let savedArticleID = selectedArticleI D
// l e t s a v e d A r t i c l e I D s = s e l e c t e d A r t i c l e I D
// l e t s a v e d A r t i c l e I D = s e l e c t e d A r t i c l e I
block ( )
selectedArticleIDs = savedArticleID s
selectedArticleID = savedArticleI D
}
func rebuildArticleDictionaries ( ) {
var idDictionary = [ String : Article ] ( )
articles . forEach { article in
idDictionary [ article . articleID ] = article
}
_idToArticleDictionary = idDictionary
articleDictionaryNeedsUpdate = false
}
func rebuildTimelineItemDictionaries ( ) {
var idDictionary = [ String : Int ] ( )
for ( index , timelineItem ) in timelineItems . enumerated ( ) {
idDictionary [ timelineItem . article . articleID ] = index
}
_idToTimelineItemDictionary = idDictionary
timelineItemDictionaryNeedsUpdate = false
// s e l e c t e d A r t i c l e I D s = s a v e d A r t i c l e I D
// s e l e c t e d A r t i c l e I D = s a v e d A r t i c l e I
}
// MARK: A r t i c l e F e t c h i n g
func fetchArticles ( ) {
replaceArticles ( with : Set < Article > ( ) )
guard ! feeds . isEmpty else {
nameForDisplay = " "
return
}
if feeds . count = = 1 {
nameForDisplay = feeds . first ! . nameForDisplay
} else {
nameForDisplay = NSLocalizedString ( " Multiple " , comment : " Multiple Feeds " )
}
resetReadFilter ( )
#if os ( macOS )
fetchAndReplaceArticlesSync ( )
#else
fetchAndReplaceArticlesAsync ( )
#endif
}
func fetchAndReplaceArticlesSync ( ) {
// T o b e c a l l e d w h e n t h e u s e r h a s m a d e a c h a n g e o f s e l e c t i o n i n t h e s i d e b a r .
// I t b l o c k s t h e m a i n t h r e a d , s o t h a t t h e r e ’ s n o a s y n c d e l a y ,
// s o t h a t t h e e n t i r e d i s p l a y r e f r e s h e s a t o n c e .
// I t ’ s a b e t t e r u s e r e x p e r i e n c e t h i s w a y .
var fetchers = feeds as [ ArticleFetcher ]
if let fetcher = exceptionArticleFetcher {
fetchers . append ( fetcher )
exceptionArticleFetcher = nil
}
let fetchedArticles = fetchUnsortedArticlesSync ( for : fetchers )
replaceArticles ( with : fetchedArticles )
}
func fetchAndReplaceArticlesAsync ( ) {
var fetchers = feeds as [ ArticleFetcher ]
if let fetcher = exceptionArticleFetcher {
fetchers . append ( fetcher )
exceptionArticleFetcher = nil
}
fetchUnsortedArticlesAsync ( for : fetchers ) { [ weak self ] ( articles ) in
self ? . replaceArticles ( with : articles )
}
}
func cancelPendingAsyncFetches ( ) {
fetchSerialNumber += 1
fetchRequestQueue . cancelAllRequests ( )
}
func fetchUnsortedArticlesSync ( for representedObjects : [ Any ] ) -> Set < Article > {
cancelPendingAsyncFetches ( )
let articleFetchers = representedObjects . compactMap { $0 as ? ArticleFetcher }
if articleFetchers . isEmpty {
func fetchArticles ( feeds : [ Feed ] ) -> Set < Article > {
if feeds . isEmpty {
return Set < Article > ( )
}
var fetchedArticles = Set < Article > ( )
for articleFetcher in articleFetcher s{
for feed in feed s{
if isReadFiltered ? ? true {
if let articles = try ? articleFetcher . fetchUnreadArticles ( ) {
if let articles = try ? feed . fetchUnreadArticles ( ) {
fetchedArticles . formUnion ( articles )
}
} else {
if let articles = try ? articleFetcher . fetchArticles ( ) {
if let articles = try ? feed . fetchArticles ( ) {
fetchedArticles . formUnion ( articles )
}
}
}
return fetchedArticles
}
func fetchUnsortedArticlesAsync ( for representedObjects : [ Any ] , completion : @ escaping ArticleSetBlock ) {
// T h e c a l l b a c k w i l l * n o t * b e c a l l e d i f t h e f e t c h i s n o l o n g e r r e l e v a n t — t h a t i s ,
// i f i t ’ s b e e n s u p e r s e d e d b y a n e w e r f e t c h , o r t h e t i m e l i n e w a s e m p t i e d , e t c . , i t w o n ’ t g e t c a l l e d .
precondition ( Thread . isMainThread )
cancelPendingAsyncFetches ( )
let filtered = isReadFiltered ? ? false
let fetchOperation = FetchRequestOperation ( id : fetchSerialNumber , readFilter : filtered , representedObjects : representedObjects ) { [ weak self ] ( articles , operation ) in
precondition ( Thread . isMainThread )
guard ! operation . isCanceled , let strongSelf = self , operation . id = = strongSelf . fetchSerialNumber else {
return
}
completion ( articles )
}
fetchRequestQueue . add ( fetchOperation )
}
return fetchedArticles
}
func replaceArticles ( with unsortedA rticles: Set < Article > ) {
articles = Array ( unsortedArticles ) . sortedByDate ( sortDirection ? . orderedDescending : . orderedAscending , groupByFeed : groupByFeed )
rebuildTimelineItems ( )
selectedArticleIDs = Set < String > ( )
selectedArticleID = nil
if isSelectNextUnread {
goToNextUnread ( )
isSelectNextUnread = false
}
// TODO: U p d a t e u n r e a d c o u n t s a n d o t h e r i t e m d o n e i n d i d S e t o n A p p K i t
}
func rebuildTimelineItems ( ) {
func buildTimelineItems ( a rticles: [ Article ] ) -> [ TimelineItem ] {
var items = [ TimelineItem ] ( )
for ( index , article ) in articles . enumerated ( ) {
items . append ( TimelineItem ( index : index , article : article ) )
}
timelineItems = items
return items
}
func queueFetchAndMergeArticles
TimelineModel . fetchAndMergeArticlesQueue . add ( self , #selector ( fetchAndMergeArticles )
@objc func fetchAndMergeArticles ( )
fetchUnsortedArticlesAsync ( for : feeds ) { [ weak self ] ( unsortedArticles ) in
// M e r g e a r t i c l e s b y a r t i c l e I D . F o r a n y u n i q u e a r t i c l e I D i n c u r r e n t a r t i c l e s , a d d t o u n s o r t e d A r t i c l e s .
guard let strongSelf = self else
return
let unsortedArticleIDs = unsortedArticles . articleIDs ( )
var updatedArticles = unsortedArticles
for article in strongSelf . articles
if ! unsortedArticleIDs . contains ( article . articleID )
updatedArticles . insert ( article )
strongSelf . performBlockAndRestoreSelection {
strongSelf . replaceArticles ( with : updatedArticles )
}
}
func anySelectedFeedIsPseudoFeed ( ) -> Bool {
return feeds . contains ( where : { $0 is PseudoFeed } )
}
func anySelectedFeedIntersection ( with webFeeds : Set < WebFeed > ) -> Bool {
for feed in feeds {
if let selectedWebFeed = feed as ? WebFeed {
for webFeed in webFeeds {
if selectedWebFeed . webFeedID = = webFeed . webFeedID || selectedWebFeed . url = = webFeed . url {
return true
}
}
} else if let folder = feed as ? Folder {
for webFeed in webFeeds {
if folder . hasWebFeed ( with : webFeed . webFeedID ) || folder . hasWebFeed ( withURL : webFeed . url ) {
return true
}
}
}
}
return false
}
// f u n c a n y S e l e c t e d F e e d I s P s e u d o F e e d - > B o o l
// r e t u r n f e e d s . c o n t a i n s ( w h e r e : { $ 0 i s P s e u d o F e e d }
//
//
// f u n c a n y S e l e c t e d F e e d I n t e r s e c t i o n ( w i t h w e b F e e d s : S e t < W e b F e e d > ) - > B o o l
// f o r f e e d i n f e e d s {
// i f l e t s e l e c t e d W e b F e e d = f e e d a s ? W e b F e e d {
// f o r w e b F e e d i n w e b F e e d s {
// i f s e l e c t e d W e b F e e d . w e b F e e d I D = = w e b F e e d . w e b F e e d I D | | s e l e c t e d W e b F e e d . u r l = = w e b F e e d . u r l
// r e t u r n t r u e
//
// }
// } e l s e i f l e t f o l d e r = f e e d a s ? F o l d e r {
// f o r w e b F e e d i n w e b F e e d s
// i f f o l d e r . h a s W e b F e e d ( w i t h : w e b F e e d . w e b F e e d I D ) | | f o l d e r . h a s W e b F e e d ( w i t h U R L : w e b F e e d . u r l )
// r e t u r n t r u e
//
//
// }
// }
// r e t u r n f a l s e
//
}
Maurice Parker