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Diffstat (limited to 'client/src/app/shared/video/infinite-scroller.directive.ts')
-rw-r--r--client/src/app/shared/video/infinite-scroller.directive.ts47
1 files changed, 0 insertions, 47 deletions
diff --git a/client/src/app/shared/video/infinite-scroller.directive.ts b/client/src/app/shared/video/infinite-scroller.directive.ts
index a9e75007c..5f8a1dd6e 100644
--- a/client/src/app/shared/video/infinite-scroller.directive.ts
+++ b/client/src/app/shared/video/infinite-scroller.directive.ts
@@ -6,24 +6,15 @@ import { fromEvent, Subscription } from 'rxjs'
6 selector: '[myInfiniteScroller]' 6 selector: '[myInfiniteScroller]'
7}) 7})
8export class InfiniteScrollerDirective implements OnInit, OnDestroy { 8export class InfiniteScrollerDirective implements OnInit, OnDestroy {
9 @Input() containerHeight: number
10 @Input() pageHeight: number
11 @Input() firstLoadedPage = 1
12 @Input() percentLimit = 70 9 @Input() percentLimit = 70
13 @Input() autoInit = false 10 @Input() autoInit = false
14 @Input() onItself = false 11 @Input() onItself = false
15 12
16 @Output() nearOfBottom = new EventEmitter<void>() 13 @Output() nearOfBottom = new EventEmitter<void>()
17 @Output() nearOfTop = new EventEmitter<void>()
18 @Output() pageChanged = new EventEmitter<number>()
19 14
20 private decimalLimit = 0 15 private decimalLimit = 0
21 private lastCurrentBottom = -1 16 private lastCurrentBottom = -1
22 private lastCurrentTop = 0
23 private scrollDownSub: Subscription 17 private scrollDownSub: Subscription
24 private scrollUpSub: Subscription
25 private pageChangeSub: Subscription
26 private middleScreen: number
27 private container: HTMLElement 18 private container: HTMLElement
28 19
29 constructor (private el: ElementRef) { 20 constructor (private el: ElementRef) {
@@ -36,8 +27,6 @@ export class InfiniteScrollerDirective implements OnInit, OnDestroy {
36 27
37 ngOnDestroy () { 28 ngOnDestroy () {
38 if (this.scrollDownSub) this.scrollDownSub.unsubscribe() 29 if (this.scrollDownSub) this.scrollDownSub.unsubscribe()
39 if (this.scrollUpSub) this.scrollUpSub.unsubscribe()
40 if (this.pageChangeSub) this.pageChangeSub.unsubscribe()
41 } 30 }
42 31
43 initialize () { 32 initialize () {
@@ -45,8 +34,6 @@ export class InfiniteScrollerDirective implements OnInit, OnDestroy {
45 this.container = this.el.nativeElement 34 this.container = this.el.nativeElement
46 } 35 }
47 36
48 this.middleScreen = window.innerHeight / 2
49
50 // Emit the last value 37 // Emit the last value
51 const throttleOptions = { leading: true, trailing: true } 38 const throttleOptions = { leading: true, trailing: true }
52 39
@@ -72,40 +59,6 @@ export class InfiniteScrollerDirective implements OnInit, OnDestroy {
72 filter(({ current, maximumScroll }) => maximumScroll <= 0 || (current / maximumScroll) > this.decimalLimit) 59 filter(({ current, maximumScroll }) => maximumScroll <= 0 || (current / maximumScroll) > this.decimalLimit)
73 ) 60 )
74 .subscribe(() => this.nearOfBottom.emit()) 61 .subscribe(() => this.nearOfBottom.emit())
75
76 // Scroll up
77 this.scrollUpSub = scrollObservable
78 .pipe(
79 // Check we scroll up
80 filter(({ current }) => {
81 const res = this.lastCurrentTop > current
82
83 this.lastCurrentTop = current
84 return res
85 }),
86 filter(({ current, maximumScroll }) => {
87 return current !== 0 && (1 - (current / maximumScroll)) > this.decimalLimit
88 })
89 )
90 .subscribe(() => this.nearOfTop.emit())
91
92 // Page change
93 this.pageChangeSub = scrollObservable
94 .pipe(
95 distinct(),
96 map(({ current }) => this.calculateCurrentPage(current)),
97 distinctUntilChanged()
98 )
99 .subscribe(res => this.pageChanged.emit(res))
100 }
101
102 private calculateCurrentPage (current: number) {
103 const scrollY = current + this.middleScreen
104
105 const page = Math.max(1, Math.ceil(scrollY / this.pageHeight))
106
107 // Offset page
108 return page + (this.firstLoadedPage - 1)
109 } 62 }
110 63
111 private getScrollInfo () { 64 private getScrollInfo () {