Go back when cancel NSFW modal

Instead of redirecting on the homepage

client/src/app/app.component.ts

@@ -12,6 +12,7 @@ import { PlatformLocation, ViewportScroller } from '@angular/common'
 import { PluginService } from '@app/core/plugins/plugin.service'
 import { HooksService } from '@app/core/plugins/hooks.service'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
+import { POP_STATE_MODAL_DISMISS } from '@app/shared/misc/constants'
 
 @Component({
   selector: 'my-app',
@@ -94,7 +95,7 @@ export class AppComponent implements OnInit {
       .pipe(debounceTime(200))
       .subscribe(() => this.onResize())
 
-    this.location.onPopState(() => this.modalService.dismissAll())
+    this.location.onPopState(() => this.modalService.dismissAll(POP_STATE_MODAL_DISMISS))
   }
 
   isUserLoggedIn () {
@@ -115,7 +116,6 @@ export class AppComponent implements OnInit {
     const eventsObs = this.router.events
 
     const scrollEvent = eventsObs.pipe(filter((e: Event): e is Scroll => e instanceof Scroll))
-    const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
 
     scrollEvent.subscribe(e => {
       if (e.position) {
@@ -131,6 +131,8 @@ export class AppComponent implements OnInit {
       }
     })
 
+    const navigationEndEvent = eventsObs.pipe(filter((e: Event): e is NavigationEnd => e instanceof NavigationEnd))
+
     // When we add the a-state parameter, we don't want to alter the scroll
     navigationEndEvent.pipe(pairwise())
                       .subscribe(([ e1, e2 ]) => {

client/src/app/core/confirm/confirm.service.ts

@@ -18,12 +18,16 @@ export class ConfirmService {
   confirm (message: string, title = '', confirmButtonText?: string) {
     this.showConfirm.next({ title, message, confirmButtonText })
 
-    return this.confirmResponse.asObservable().pipe(first()).toPromise()
+    return this.confirmResponse.asObservable()
+               .pipe(first())
+               .toPromise()
   }
 
   confirmWithInput (message: string, inputLabel: string, expectedInputValue: string, title = '', confirmButtonText?: string) {
     this.showConfirm.next({ title, message, inputLabel, expectedInputValue, confirmButtonText })
 
-    return this.confirmResponse.asObservable().pipe(first()).toPromise()
+    return this.confirmResponse.asObservable()
+               .pipe(first())
+               .toPromise()
   }
 }

client/src/app/shared/confirm/confirm.component.ts

@@ -3,6 +3,7 @@ import { ConfirmService } from '@app/core/confirm/confirm.service'
 import { I18n } from '@ngx-translate/i18n-polyfill'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
+import { POP_STATE_MODAL_DISMISS } from '@app/shared/misc/constants'
 
 @Component({
   selector: 'my-confirm',
@@ -63,6 +64,11 @@ export class ConfirmComponent implements OnInit {
 
     this.openedModal.result
         .then(() => this.confirmService.confirmResponse.next(true))
-        .catch(() => this.confirmService.confirmResponse.next(false))
+        .catch((reason: string) => {
+          // If the reason was that the user used the back button, we don't care about the confirm dialog result
+          if (!reason || reason !== POP_STATE_MODAL_DISMISS) {
+            this.confirmService.confirmResponse.next(false)
+          }
+        })
   }
 }

client/src/app/shared/misc/constants.ts

@@ -0,0 +1 @@
+export const POP_STATE_MODAL_DISMISS = 'pop state dismiss'

client/src/app/videos/+video-watch/video-watch.component.ts

@@ -34,6 +34,7 @@ import { VideoWatchPlaylistComponent } from '@app/videos/+video-watch/video-watc
 import { getStoredTheater } from '../../../assets/player/peertube-player-local-storage'
 import { PluginService } from '@app/core/plugins/plugin.service'
 import { HooksService } from '@app/core/plugins/hooks.service'
+import { PlatformLocation } from '@angular/common'
 
 @Component({
   selector: 'my-video-watch',
@@ -95,6 +96,7 @@ export class VideoWatchComponent implements OnInit, OnDestroy {
     private i18n: I18n,
     private hotkeysService: HotkeysService,
     private hooks: HooksService,
+    private location: PlatformLocation,
     @Inject(LOCALE_ID) private localeId: string
   ) {}
 
@@ -374,13 +376,13 @@ export class VideoWatchComponent implements OnInit, OnDestroy {
         this.i18n('This video contains mature or explicit content. Are you sure you want to watch it?'),
         this.i18n('Mature or explicit content')
       )
-      if (res === false) return this.redirectService.redirectToHomepage()
+      if (res === false) return this.location.back()
     }
 
     // Flush old player if needed
     this.flushPlayer()
 
-    // Build video element, because videojs remove it on dispose
+    // Build video element, because videojs removes it on dispose
     const playerElementWrapper = this.elementRef.nativeElement.querySelector('#videojs-wrapper')
     this.playerElement = document.createElement('video')
     this.playerElement.className = 'video-js vjs-peertube-skin'