WIP : Indicate to users how "trending" works (#1458)

* Get the INTERVAL_DAYS const in the video-trending component

* Change Trending section title

* Add a tooltip to explain how trending section works

* Minor CSS fix for the my-feed popover next to the titlepage

1 files changed, 10 insertions, 2 deletions

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 accc5bfe5..d3c0f5316 100644
--- a/client/src/app/videos/video-list/video-trending.component.ts
+++ b/client/src/app/videos/video-list/video-trending.component.ts
@@ -8,7 +8,7 @@ import { VideoSortField } from '../../shared/video/sort-field.type'
 import { VideoService } from '../../shared/video/video.service'
 import { I18n } from '@ngx-translate/i18n-polyfill'
 import { ScreenService } from '@app/shared/misc/screen.service'
-import { Notifier } from '@app/core'
+import { Notifier, ServerService } from '@app/core'
 
 @Component({
   selector: 'my-videos-trending',
@@ -19,6 +19,7 @@ export class VideoTrendingComponent extends AbstractVideoList implements OnInit,
   titlePage: string
   currentRoute = '/videos/trending'
   defaultSort: VideoSortField = '-trending'
+  trendingDays: number
 
   constructor (
     protected router: Router,
@@ -27,12 +28,19 @@ export class VideoTrendingComponent extends AbstractVideoList implements OnInit,
     protected authService: AuthService,
     protected location: Location,
     protected screenService: ScreenService,
+    private serverService: ServerService,
     protected i18n: I18n,
     private videoService: VideoService
   ) {
     super()
 
-    this.titlePage = i18n('Trending')
+    this.trendingDays = this.serverService.getConfig().trending.videos.intervalDays
+
+    this.titlePage = this.i18n('Trending for the last ')
+    this.trendingDays === 1 ? this.titlePage += '24 hours' : this.titlePage += this.trendingDays + ' days'
+
+    this.titleTooltip = this.i18n('trending videos are those totalizing the greatest number of views during the last ')
+    this.trendingDays === 1 ? this.titleTooltip += '24 hours.' : this.titleTooltip += this.trendingDays + ' days.'
   }
 
   ngOnInit () {