diff options
Diffstat (limited to 'client/src/app/videos/video-list/shared/abstract-video-list.ts')
-rw-r--r-- | client/src/app/videos/video-list/shared/abstract-video-list.ts | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/client/src/app/videos/video-list/shared/abstract-video-list.ts b/client/src/app/videos/video-list/shared/abstract-video-list.ts deleted file mode 100644 index a684ffef4..000000000 --- a/client/src/app/videos/video-list/shared/abstract-video-list.ts +++ /dev/null | |||
@@ -1,121 +0,0 @@ | |||
1 | import { OnDestroy, OnInit } from '@angular/core' | ||
2 | import { ActivatedRoute, Router } from '@angular/router' | ||
3 | |||
4 | import { NotificationsService } from 'angular2-notifications' | ||
5 | import { Observable } from 'rxjs/Observable' | ||
6 | import { Subscription } from 'rxjs/Subscription' | ||
7 | |||
8 | import { SortField, Video, VideoPagination } from '../../shared' | ||
9 | |||
10 | export abstract class AbstractVideoList implements OnInit, OnDestroy { | ||
11 | pagination: VideoPagination = { | ||
12 | currentPage: 1, | ||
13 | itemsPerPage: 25, | ||
14 | totalItems: null | ||
15 | } | ||
16 | sort: SortField = '-createdAt' | ||
17 | videos: Video[] = [] | ||
18 | |||
19 | protected notificationsService: NotificationsService | ||
20 | protected router: Router | ||
21 | protected route: ActivatedRoute | ||
22 | protected subActivatedRoute: Subscription | ||
23 | |||
24 | protected abstract currentRoute: string | ||
25 | |||
26 | abstract titlePage: string | ||
27 | private loadedPages: { [ id: number ]: boolean } = {} | ||
28 | |||
29 | abstract getVideosObservable (): Observable<{ videos: Video[], totalVideos: number}> | ||
30 | |||
31 | ngOnInit () { | ||
32 | // Subscribe to route changes | ||
33 | const routeParams = this.route.snapshot.params | ||
34 | this.loadRouteParams(routeParams) | ||
35 | this.loadMoreVideos('after') | ||
36 | } | ||
37 | |||
38 | ngOnDestroy () { | ||
39 | if (this.subActivatedRoute) { | ||
40 | this.subActivatedRoute.unsubscribe() | ||
41 | } | ||
42 | } | ||
43 | |||
44 | onNearOfTop () { | ||
45 | if (this.pagination.currentPage > 1) { | ||
46 | this.previousPage() | ||
47 | } | ||
48 | } | ||
49 | |||
50 | onNearOfBottom () { | ||
51 | if (this.hasMoreVideos()) { | ||
52 | this.nextPage() | ||
53 | } | ||
54 | } | ||
55 | |||
56 | loadMoreVideos (where: 'before' | 'after') { | ||
57 | if (this.loadedPages[this.pagination.currentPage] === true) return | ||
58 | |||
59 | const observable = this.getVideosObservable() | ||
60 | |||
61 | observable.subscribe( | ||
62 | ({ videos, totalVideos }) => { | ||
63 | this.loadedPages[this.pagination.currentPage] = true | ||
64 | this.pagination.totalItems = totalVideos | ||
65 | |||
66 | if (where === 'before') { | ||
67 | this.videos = videos.concat(this.videos) | ||
68 | } else { | ||
69 | this.videos = this.videos.concat(videos) | ||
70 | } | ||
71 | }, | ||
72 | error => this.notificationsService.error('Error', error.text) | ||
73 | ) | ||
74 | } | ||
75 | |||
76 | protected hasMoreVideos () { | ||
77 | if (!this.pagination.totalItems) return true | ||
78 | |||
79 | const maxPage = this.pagination.totalItems/this.pagination.itemsPerPage | ||
80 | return maxPage > this.pagination.currentPage | ||
81 | } | ||
82 | |||
83 | protected previousPage () { | ||
84 | this.pagination.currentPage-- | ||
85 | |||
86 | this.setNewRouteParams() | ||
87 | this.loadMoreVideos('before') | ||
88 | } | ||
89 | |||
90 | protected nextPage () { | ||
91 | this.pagination.currentPage++ | ||
92 | |||
93 | this.setNewRouteParams() | ||
94 | this.loadMoreVideos('after') | ||
95 | } | ||
96 | |||
97 | protected buildRouteParams () { | ||
98 | // There is always a sort and a current page | ||
99 | const params = { | ||
100 | sort: this.sort, | ||
101 | page: this.pagination.currentPage | ||
102 | } | ||
103 | |||
104 | return params | ||
105 | } | ||
106 | |||
107 | protected loadRouteParams (routeParams: { [ key: string ]: any }) { | ||
108 | this.sort = routeParams['sort'] as SortField || '-createdAt' | ||
109 | |||
110 | if (routeParams['page'] !== undefined) { | ||
111 | this.pagination.currentPage = parseInt(routeParams['page'], 10) | ||
112 | } else { | ||
113 | this.pagination.currentPage = 1 | ||
114 | } | ||
115 | } | ||
116 | |||
117 | protected setNewRouteParams () { | ||
118 | const routeParams = this.buildRouteParams() | ||
119 | this.router.navigate([ this.currentRoute, routeParams ]) | ||
120 | } | ||
121 | } | ||