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ad453580 | 1 | import { Subject, Subscription } from 'rxjs' |
bfbd9128 | 2 | import { CdkDragDrop } from '@angular/cdk/drag-drop' |
67ed6552 C |
3 | import { Component, OnDestroy, OnInit } from '@angular/core' |
4 | import { ActivatedRoute } from '@angular/router' | |
5 | import { ComponentPagination, Notifier, ScreenService } from '@app/core' | |
6 | import { VideoPlaylist, VideoPlaylistElement, VideoPlaylistService } from '@app/shared/shared-video-playlist' | |
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7 | |
8 | @Component({ | |
9 | selector: 'my-account-video-playlist-elements', | |
10 | templateUrl: './my-account-video-playlist-elements.component.html', | |
11 | styleUrls: [ './my-account-video-playlist-elements.component.scss' ] | |
12 | }) | |
13 | export class MyAccountVideoPlaylistElementsComponent implements OnInit, OnDestroy { | |
bfbd9128 | 14 | playlistElements: VideoPlaylistElement[] = [] |
c5a1ae50 | 15 | playlist: VideoPlaylist |
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16 | |
17 | pagination: ComponentPagination = { | |
18 | currentPage: 1, | |
ad453580 | 19 | itemsPerPage: 10, |
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20 | totalItems: null |
21 | } | |
22 | ||
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23 | onDataSubject = new Subject<any[]>() |
24 | ||
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25 | private videoPlaylistId: string | number |
26 | private paramsSub: Subscription | |
27 | ||
28 | constructor ( | |
f0a39880 | 29 | private notifier: Notifier, |
f0a39880 | 30 | private route: ActivatedRoute, |
0c695c5c | 31 | private screenService: ScreenService, |
c5a1ae50 | 32 | private videoPlaylistService: VideoPlaylistService |
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33 | ) {} |
34 | ||
35 | ngOnInit () { | |
36 | this.paramsSub = this.route.params.subscribe(routeParams => { | |
37 | this.videoPlaylistId = routeParams[ 'videoPlaylistId' ] | |
38 | this.loadElements() | |
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39 | |
40 | this.loadPlaylistInfo() | |
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41 | }) |
42 | } | |
43 | ||
44 | ngOnDestroy () { | |
45 | if (this.paramsSub) this.paramsSub.unsubscribe() | |
46 | } | |
47 | ||
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48 | drop (event: CdkDragDrop<any>) { |
49 | const previousIndex = event.previousIndex | |
50 | const newIndex = event.currentIndex | |
51 | ||
52 | if (previousIndex === newIndex) return | |
53 | ||
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54 | const oldPosition = this.playlistElements[previousIndex].position |
55 | let insertAfter = this.playlistElements[newIndex].position | |
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56 | |
57 | if (oldPosition > insertAfter) insertAfter-- | |
15e9d5ca | 58 | |
bfbd9128 | 59 | const element = this.playlistElements[previousIndex] |
15e9d5ca | 60 | |
bfbd9128 C |
61 | this.playlistElements.splice(previousIndex, 1) |
62 | this.playlistElements.splice(newIndex, 0, element) | |
15e9d5ca | 63 | |
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64 | this.videoPlaylistService.reorderPlaylist(this.playlist.id, oldPosition, insertAfter) |
65 | .subscribe( | |
66 | () => { | |
67 | this.reorderClientPositions() | |
68 | }, | |
69 | ||
70 | err => this.notifier.error(err.message) | |
71 | ) | |
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72 | } |
73 | ||
bfbd9128 | 74 | onElementRemoved (element: VideoPlaylistElement) { |
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75 | const oldFirst = this.findFirst() |
76 | ||
bfbd9128 | 77 | this.playlistElements = this.playlistElements.filter(v => v.id !== element.id) |
65af03a2 | 78 | this.reorderClientPositions(oldFirst) |
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79 | } |
80 | ||
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81 | onNearOfBottom () { |
82 | // Last page | |
83 | if (this.pagination.totalItems <= (this.pagination.currentPage * this.pagination.itemsPerPage)) return | |
84 | ||
85 | this.pagination.currentPage += 1 | |
86 | this.loadElements() | |
87 | } | |
88 | ||
bfbd9128 | 89 | trackByFn (index: number, elem: VideoPlaylistElement) { |
bce47964 C |
90 | return elem.id |
91 | } | |
92 | ||
0c695c5c JM |
93 | /** |
94 | * Returns null to not have drag and drop delay. | |
95 | * In small views, where elements are about 100% wide, | |
96 | * we add a delay to prevent unwanted drag&drop. | |
97 | * | |
98 | * @see {@link https://github.com/Chocobozzz/PeerTube/issues/2078} | |
99 | * | |
100 | * @returns {null|number} Null for no delay, or a number in milliseconds. | |
101 | */ | |
102 | getDragStartDelay (): null | number { | |
103 | if (this.screenService.isInTouchScreen()) { | |
104 | return 500 | |
105 | } | |
106 | ||
107 | return null | |
108 | } | |
109 | ||
f0a39880 | 110 | private loadElements () { |
bfbd9128 | 111 | this.videoPlaylistService.getPlaylistVideos(this.videoPlaylistId, this.pagination) |
93cae479 | 112 | .subscribe(({ total, data }) => { |
bfbd9128 | 113 | this.playlistElements = this.playlistElements.concat(data) |
93cae479 | 114 | this.pagination.totalItems = total |
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115 | |
116 | this.onDataSubject.next(data) | |
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117 | }) |
118 | } | |
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119 | |
120 | private loadPlaylistInfo () { | |
121 | this.videoPlaylistService.getVideoPlaylist(this.videoPlaylistId) | |
122 | .subscribe(playlist => { | |
123 | this.playlist = playlist | |
124 | }) | |
125 | } | |
15e9d5ca | 126 | |
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127 | private reorderClientPositions (first?: VideoPlaylistElement) { |
128 | if (this.playlistElements.length === 0) return | |
129 | ||
130 | const oldFirst = first || this.findFirst() | |
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131 | let i = 1 |
132 | ||
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133 | for (const element of this.playlistElements) { |
134 | element.position = i | |
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135 | i++ |
136 | } | |
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137 | |
138 | // Reload playlist thumbnail if the first element changed | |
139 | const newFirst = this.findFirst() | |
140 | if (oldFirst && newFirst && oldFirst.id !== newFirst.id) { | |
141 | this.playlist.refreshThumbnail() | |
142 | } | |
143 | } | |
144 | ||
145 | private findFirst () { | |
146 | return this.playlistElements.find(e => e.position === 1) | |
15e9d5ca | 147 | } |
f0a39880 | 148 | } |