From 0cd4344f3cf529b15308fcf3eb7d7eb07726df56 Mon Sep 17 00:00:00 2001 From: Chocobozzz Date: Tue, 13 Feb 2018 14:11:05 +0100 Subject: Rewrite infinite scroll --- .../account-videos/account-videos.component.html | 60 +++++++------- .../account-videos/account-videos.component.scss | 7 +- .../account-videos/account-videos.component.ts | 31 +++++-- client/src/app/shared/misc/utils.ts | 7 +- client/src/app/shared/shared.module.ts | 8 +- .../src/app/shared/video/abstract-video-list.html | 22 ++--- client/src/app/shared/video/abstract-video-list.ts | 96 ++++++++++++++-------- .../shared/video/infinite-scroller.directive.ts | 77 +++++++++++++++++ .../comment/video-comments.component.html | 7 +- .../comment/video-comments.component.ts | 7 +- .../video-list/video-recently-added.component.ts | 7 +- .../videos/video-list/video-search.component.ts | 12 +-- .../videos/video-list/video-trending.component.ts | 6 +- 13 files changed, 239 insertions(+), 108 deletions(-) create mode 100644 client/src/app/shared/video/infinite-scroller.directive.ts (limited to 'client/src') diff --git a/client/src/app/account/account-videos/account-videos.component.html b/client/src/app/account/account-videos/account-videos.component.html index 0755158b9..3d8c656ee 100644 --- a/client/src/app/account/account-videos/account-videos.component.html +++ b/client/src/app/account/account-videos/account-videos.component.html @@ -1,44 +1,44 @@
No results.
-
-
- - -
+
+
+
+ + +
- + -
- {{ video.name }} - {{ video.createdAt | myFromNow }} - {{ video.views | myNumberFormatter }} views -
+
+ {{ video.name }} + {{ video.createdAt | myFromNow }} - {{ video.views | myNumberFormatter }} views +
- -
-
- - Cancel - + +
+
+ + Cancel + - - - Delete - + + + Delete + +
-
-
- +
+ - + +
diff --git a/client/src/app/account/account-videos/account-videos.component.scss b/client/src/app/account/account-videos/account-videos.component.scss index 707bd66ad..449cc6af4 100644 --- a/client/src/app/account/account-videos/account-videos.component.scss +++ b/client/src/app/account/account-videos/account-videos.component.scss @@ -45,16 +45,13 @@ display: flex; min-height: 130px; padding-bottom: 20px; + margin-bottom: 20px; + border-bottom: 1px solid #C6C6C6; &:first-child { margin-top: 47px; } - &:not(:last-child) { - margin-bottom: 20px; - border-bottom: 1px solid #C6C6C6; - } - .checkbox-container { display: flex; align-items: center; diff --git a/client/src/app/account/account-videos/account-videos.component.ts b/client/src/app/account/account-videos/account-videos.component.ts index bce135557..e9d044dbf 100644 --- a/client/src/app/account/account-videos/account-videos.component.ts +++ b/client/src/app/account/account-videos/account-videos.component.ts @@ -1,5 +1,7 @@ import { Component, OnInit } from '@angular/core' import { ActivatedRoute, Router } from '@angular/router' +import { immutableAssign } from '@app/shared/misc/utils' +import { ComponentPagination } from '@app/shared/rest/component-pagination.model' import { NotificationsService } from 'angular2-notifications' import 'rxjs/add/observable/from' import 'rxjs/add/operator/concatAll' @@ -19,7 +21,9 @@ export class AccountVideosComponent extends AbstractVideoList implements OnInit titlePage = 'My videos' currentRoute = '/account/videos' checkedVideos: { [ id: number ]: boolean } = {} - pagination = { + videoHeight = 155 + videoWidth = -1 + pagination: ComponentPagination = { currentPage: 1, itemsPerPage: 10, totalItems: null @@ -46,8 +50,10 @@ export class AccountVideosComponent extends AbstractVideoList implements OnInit return Object.keys(this.checkedVideos).some(k => this.checkedVideos[k] === true) } - getVideosObservable () { - return this.videoService.getMyVideos(this.pagination, this.sort) + getVideosObservable (page: number) { + const newPagination = immutableAssign(this.pagination, { currentPage: page }) + + return this.videoService.getMyVideos(newPagination, this.sort) } deleteSelectedVideos () { @@ -71,9 +77,12 @@ export class AccountVideosComponent extends AbstractVideoList implements OnInit Observable.from(observables) .concatAll() .subscribe( - res => this.notificationsService.success('Success', `${toDeleteVideosIds.length} videos deleted.`), + res => { + this.notificationsService.success('Success', `${toDeleteVideosIds.length} videos deleted.`) + this.buildVideoPages() + }, - err => this.notificationsService.error('Error', err.message) + err => this.notificationsService.error('Error', err.message) ) } ) @@ -89,6 +98,7 @@ export class AccountVideosComponent extends AbstractVideoList implements OnInit status => { this.notificationsService.success('Success', `Video ${video.name} deleted.`) this.spliceVideosById(video.id) + this.buildVideoPages() }, error => this.notificationsService.error('Error', error.message) @@ -98,7 +108,14 @@ export class AccountVideosComponent extends AbstractVideoList implements OnInit } private spliceVideosById (id: number) { - const index = this.videos.findIndex(v => v.id === id) - this.videos.splice(index, 1) + for (const key of Object.keys(this.loadedPages)) { + const videos = this.loadedPages[key] + const index = videos.findIndex(v => v.id === id) + + if (index !== -1) { + videos.splice(index, 1) + return + } + } } } diff --git a/client/src/app/shared/misc/utils.ts b/client/src/app/shared/misc/utils.ts index 6620ac973..e6a697098 100644 --- a/client/src/app/shared/misc/utils.ts +++ b/client/src/app/shared/misc/utils.ts @@ -55,6 +55,10 @@ function dateToHuman (date: string) { return datePipe.transform(date, 'medium') } +function immutableAssign (target: A, source: B) { + return Object.assign({}, target, source) +} + function isInSmallView () { return window.innerWidth < 600 } @@ -70,5 +74,6 @@ export { getAbsoluteAPIUrl, dateToHuman, isInSmallView, - isInMobileView + isInMobileView, + immutableAssign } diff --git a/client/src/app/shared/shared.module.ts b/client/src/app/shared/shared.module.ts index d8f98bdf6..330a0ba84 100644 --- a/client/src/app/shared/shared.module.ts +++ b/client/src/app/shared/shared.module.ts @@ -4,13 +4,13 @@ import { NgModule } from '@angular/core' import { FormsModule, ReactiveFormsModule } from '@angular/forms' import { RouterModule } from '@angular/router' import { MarkdownTextareaComponent } from '@app/shared/forms/markdown-textarea.component' +import { InfiniteScrollerDirective } from '@app/shared/video/infinite-scroller.directive' import { MarkdownService } from '@app/videos/shared' import { LoadingBarHttpClientModule } from '@ngx-loading-bar/http-client' import { BsDropdownModule } from 'ngx-bootstrap/dropdown' import { ModalModule } from 'ngx-bootstrap/modal' import { TabsModule } from 'ngx-bootstrap/tabs' -import { InfiniteScrollModule } from 'ngx-infinite-scroll' import { BytesPipe, KeysPipe, NgPipesModule } from 'ngx-pipes' import { SharedModule as PrimeSharedModule } from 'primeng/components/common/shared' @@ -42,7 +42,6 @@ import { VideoService } from './video/video.service' ModalModule.forRoot(), PrimeSharedModule, - InfiniteScrollModule, NgPipesModule, TabsModule.forRoot() ], @@ -55,7 +54,8 @@ import { VideoService } from './video/video.service' EditButtonComponent, NumberFormatterPipe, FromNowPipe, - MarkdownTextareaComponent + MarkdownTextareaComponent, + InfiniteScrollerDirective ], exports: [ @@ -70,7 +70,6 @@ import { VideoService } from './video/video.service' BsDropdownModule, ModalModule, PrimeSharedModule, - InfiniteScrollModule, BytesPipe, KeysPipe, @@ -80,6 +79,7 @@ import { VideoService } from './video/video.service' DeleteButtonComponent, EditButtonComponent, MarkdownTextareaComponent, + InfiniteScrollerDirective, NumberFormatterPipe, FromNowPipe diff --git a/client/src/app/shared/video/abstract-video-list.html b/client/src/app/shared/video/abstract-video-list.html index 60a2563b3..fb7f86852 100644 --- a/client/src/app/shared/video/abstract-video-list.html +++ b/client/src/app/shared/video/abstract-video-list.html @@ -6,17 +6,17 @@
No results.
- - +
+ + +
diff --git a/client/src/app/shared/video/abstract-video-list.ts b/client/src/app/shared/video/abstract-video-list.ts index a25fc532c..034d0d879 100644 --- a/client/src/app/shared/video/abstract-video-list.ts +++ b/client/src/app/shared/video/abstract-video-list.ts @@ -1,6 +1,7 @@ -import { OnInit } from '@angular/core' +import { ElementRef, OnInit, ViewChild, ViewChildren } from '@angular/core' import { ActivatedRoute, Router } from '@angular/router' -import { isInMobileView, isInSmallView } from '@app/shared/misc/utils' +import { isInMobileView } from '@app/shared/misc/utils' +import { InfiniteScrollerDirective } from '@app/shared/video/infinite-scroller.directive' import { NotificationsService } from 'angular2-notifications' import { Observable } from 'rxjs/Observable' import { AuthService } from '../../core/auth' @@ -9,30 +10,35 @@ import { SortField } from './sort-field.type' import { Video } from './video.model' export abstract class AbstractVideoList implements OnInit { + private static LINES_PER_PAGE = 3 + + @ViewChild('videoElement') videosElement: ElementRef + @ViewChild(InfiniteScrollerDirective) infiniteScroller: InfiniteScrollerDirective + pagination: ComponentPagination = { currentPage: 1, - itemsPerPage: 25, + itemsPerPage: 10, totalItems: null } sort: SortField = '-createdAt' defaultSort: SortField = '-createdAt' - videos: Video[] = [] loadOnInit = true + pageHeight: number + videoWidth = 215 + videoHeight = 230 + videoPages: Video[][] protected abstract notificationsService: NotificationsService protected abstract authService: AuthService protected abstract router: Router protected abstract route: ActivatedRoute - protected abstract currentRoute: string - abstract titlePage: string - protected otherParams = {} - - private loadedPages: { [ id: number ]: boolean } = {} + protected loadedPages: { [ id: number ]: Video[] } = {} + protected otherRouteParams = {} - abstract getVideosObservable (): Observable<{ videos: Video[], totalVideos: number}> + abstract getVideosObservable (page: number): Observable<{ videos: Video[], totalVideos: number}> get user () { return this.authService.getUser() @@ -45,15 +51,26 @@ export abstract class AbstractVideoList implements OnInit { if (isInMobileView()) { this.pagination.itemsPerPage = 5 + this.videoWidth = -1 + } + + if (this.videoWidth !== -1) { + const videosWidth = this.videosElement.nativeElement.offsetWidth + this.pagination.itemsPerPage = Math.floor(videosWidth / this.videoWidth) * AbstractVideoList.LINES_PER_PAGE + } + + // Video takes all the width + if (this.videoWidth === -1) { + this.pageHeight = this.pagination.itemsPerPage * this.videoHeight + } else { + this.pageHeight = this.videoHeight * AbstractVideoList.LINES_PER_PAGE } - if (this.loadOnInit === true) this.loadMoreVideos('after') + if (this.loadOnInit === true) this.loadMoreVideos(this.pagination.currentPage) } onNearOfTop () { - if (this.pagination.currentPage > 1) { - this.previousPage() - } + this.previousPage() } onNearOfBottom () { @@ -62,16 +79,20 @@ export abstract class AbstractVideoList implements OnInit { } } + onPageChanged (page: number) { + this.pagination.currentPage = page + this.setNewRouteParams() + } + reloadVideos () { - this.videos = [] this.loadedPages = {} - this.loadMoreVideos('before') + this.loadMoreVideos(this.pagination.currentPage) } - loadMoreVideos (where: 'before' | 'after') { - if (this.loadedPages[this.pagination.currentPage] === true) return + loadMoreVideos (page: number) { + if (this.loadedPages[page] !== undefined) return - const observable = this.getVideosObservable() + const observable = this.getVideosObservable(page) observable.subscribe( ({ videos, totalVideos }) => { @@ -82,13 +103,14 @@ export abstract class AbstractVideoList implements OnInit { return this.reloadVideos() } - this.loadedPages[this.pagination.currentPage] = true + this.loadedPages[page] = videos + this.buildVideoPages() this.pagination.totalItems = totalVideos - if (where === 'before') { - this.videos = videos.concat(this.videos) - } else { - this.videos = this.videos.concat(videos) + // Initialize infinite scroller now we loaded the first page + if (Object.keys(this.loadedPages).length === 1) { + // Wait elements creation + setTimeout(() => this.infiniteScroller.initialize(), 500) } }, error => this.notificationsService.error('Error', error.message) @@ -107,17 +129,15 @@ export abstract class AbstractVideoList implements OnInit { } protected previousPage () { - this.pagination.currentPage-- + const min = this.minPageLoaded() - this.setNewRouteParams() - this.loadMoreVideos('before') + if (min > 1) { + this.loadMoreVideos(min - 1) + } } protected nextPage () { - this.pagination.currentPage++ - - this.setNewRouteParams() - this.loadMoreVideos('after') + this.loadMoreVideos(this.maxPageLoaded() + 1) } protected buildRouteParams () { @@ -127,7 +147,7 @@ export abstract class AbstractVideoList implements OnInit { page: this.pagination.currentPage } - return Object.assign(params, this.otherParams) + return Object.assign(params, this.otherRouteParams) } protected loadRouteParams (routeParams: { [ key: string ]: any }) { @@ -144,4 +164,16 @@ export abstract class AbstractVideoList implements OnInit { const routeParams = this.buildRouteParams() this.router.navigate([ this.currentRoute, routeParams ]) } + + protected buildVideoPages () { + this.videoPages = Object.values(this.loadedPages) + } + + private minPageLoaded () { + return Math.min(...Object.keys(this.loadedPages).map(e => parseInt(e, 10))) + } + + private maxPageLoaded () { + return Math.max(...Object.keys(this.loadedPages).map(e => parseInt(e, 10))) + } } diff --git a/client/src/app/shared/video/infinite-scroller.directive.ts b/client/src/app/shared/video/infinite-scroller.directive.ts new file mode 100644 index 000000000..43e014cbd --- /dev/null +++ b/client/src/app/shared/video/infinite-scroller.directive.ts @@ -0,0 +1,77 @@ +import { Directive, EventEmitter, Input, OnInit, Output } from '@angular/core' +import 'rxjs/add/operator/distinct' +import 'rxjs/add/operator/startWith' +import { fromEvent } from 'rxjs/observable/fromEvent' + +@Directive({ + selector: '[myInfiniteScroller]' +}) +export class InfiniteScrollerDirective implements OnInit { + private static PAGE_VIEW_TOP_MARGIN = 500 + + @Input() containerHeight: number + @Input() pageHeight: number + @Input() percentLimit = 70 + @Input() autoLoading = false + + @Output() nearOfBottom = new EventEmitter() + @Output() nearOfTop = new EventEmitter() + @Output() pageChanged = new EventEmitter() + + private decimalLimit = 0 + private lastCurrentBottom = -1 + private lastCurrentTop = 0 + + constructor () { + this.decimalLimit = this.percentLimit / 100 + } + + ngOnInit () { + if (this.autoLoading === true) return this.initialize() + } + + initialize () { + const scrollObservable = fromEvent(window, 'scroll') + .startWith(true) + .map(() => ({ current: window.scrollY, maximumScroll: document.body.clientHeight - window.innerHeight })) + + // Scroll Down + scrollObservable + // Check we scroll down + .filter(({ current }) => { + const res = this.lastCurrentBottom < current + + this.lastCurrentBottom = current + return res + }) + .filter(({ current, maximumScroll }) => maximumScroll <= 0 || (current / maximumScroll) > this.decimalLimit) + .debounceTime(200) + .distinct() + .subscribe(() => this.nearOfBottom.emit()) + + // Scroll up + scrollObservable + // Check we scroll up + .filter(({ current }) => { + const res = this.lastCurrentTop > current + + this.lastCurrentTop = current + return res + }) + .filter(({ current, maximumScroll }) => { + return current !== 0 && (1 - (current / maximumScroll)) > this.decimalLimit + }) + .debounceTime(200) + .distinct() + .subscribe(() => this.nearOfTop.emit()) + + // Page change + scrollObservable + .debounceTime(500) + .distinct() + .map(({ current }) => Math.max(1, Math.round((current + InfiniteScrollerDirective.PAGE_VIEW_TOP_MARGIN) / this.pageHeight))) + .distinctUntilChanged() + .subscribe(res => this.pageChanged.emit(res)) + } + +} diff --git a/client/src/app/videos/+video-watch/comment/video-comments.component.html b/client/src/app/videos/+video-watch/comment/video-comments.component.html index 80b200931..7f2e96e93 100644 --- a/client/src/app/videos/+video-watch/comment/video-comments.component.html +++ b/client/src/app/videos/+video-watch/comment/video-comments.component.html @@ -15,10 +15,9 @@
{ const querySearch = queryParams['search'] - if (!querySearch || this.otherParams.search === querySearch) return + if (!querySearch || this.otherRouteParams.search === querySearch) return - this.otherParams.search = querySearch + this.otherRouteParams.search = querySearch this.reloadVideos() }, @@ -51,7 +52,8 @@ export class VideoSearchComponent extends AbstractVideoList implements OnInit, O } } - getVideosObservable () { - return this.videoService.searchVideos(this.otherParams.search, this.pagination, this.sort) + getVideosObservable (page: number) { + const newPagination = immutableAssign(this.pagination, { currentPage: page }) + return this.videoService.searchVideos(this.otherRouteParams.search, newPagination, this.sort) } } diff --git a/client/src/app/videos/video-list/video-trending.component.ts b/client/src/app/videos/video-list/video-trending.component.ts index fc48086d6..a42457273 100644 --- a/client/src/app/videos/video-list/video-trending.component.ts +++ b/client/src/app/videos/video-list/video-trending.component.ts @@ -1,5 +1,6 @@ import { Component, OnInit } from '@angular/core' import { ActivatedRoute, Router } from '@angular/router' +import { immutableAssign } from '@app/shared/misc/utils' import { NotificationsService } from 'angular2-notifications' import { AuthService } from '../../core/auth' import { AbstractVideoList } from '../../shared/video/abstract-video-list' @@ -28,7 +29,8 @@ export class VideoTrendingComponent extends AbstractVideoList implements OnInit super.ngOnInit() } - getVideosObservable () { - return this.videoService.getVideos(this.pagination, this.sort) + getVideosObservable (page: number) { + const newPagination = immutableAssign(this.pagination, { currentPage: page }) + return this.videoService.getVideos(newPagination, this.sort) } } -- cgit v1.2.3