Merge branch 'max_dev' of Software_Engineering_I/greenvironment-frontend into master

src/app/components/feed/feed.component.ts

@@ -63,6 +63,9 @@ export class FeedComponent implements OnInit {
     this.feedService.postsAvailable.subscribe(available => {
       this.loadingMostLiked = this.loadingNew = available;
     });
+    this.feedService.posting.subscribe(posting => {
+      this.posting = posting;
+    });
   }
 
   /**
@@ -74,39 +77,19 @@ export class FeedComponent implements OnInit {
     if (postElement && activityId && this.checked) {
       this.posting = true;
       this.feedService.createPostActivity(postElement.value, activityId, this.file).subscribe(() => {
-        this.posting = false;
         postElement.value = '';
-        this.textInputValue = '';
-        this.checked = false;
-        this.file = null;
-        this.localFileUrl = null;
-        this.fileType = null;
-        if (this.view !== 'new') {
-          this.showNew();
-        }
+        this.resetPostInput();
       }, (error: IErrorResponse) => {
-        this.posting = false;
         this.errorOccurred = true;
         this.errorMessage = error.error.errors[0].message;
       });
     } else if (postElement) {
       this.posting = true;
       this.feedService.createPost(postElement.value, this.file).subscribe((result) => {
-        console.log('response in component');
-        this.posting = false;
         postElement.value = '';
-        this.textInputValue = '';
-        this.checked = false;
-        this.file = null;
-        this.localFileUrl = null;
-        this.fileType = null;
-        if (this.view !== 'new') {
-          this.showNew();
-        }
+        this.resetPostInput();
       }, (error: IErrorResponse) => {
-        console.log('an error occured in component');
         console.log(error);
-        this.posting = false;
         this.errorOccurred = true;
         this.errorMessage = error.error.errors[0].message;
       });
@@ -120,6 +103,15 @@ export class FeedComponent implements OnInit {
     this.fileInput.nativeElement.value = '';
   }
 
+  resetPostInput() {
+    this.textInputValue = '';
+    this.checked = false;
+    this.discardFile();
+    if (this.view !== 'new') {
+      this.showNew();
+    }
+  }
+
   onFileInputChange(event) {
     this.errorOccurred = false;
     this.errorMessage = '';

src/app/components/feed/postlist/postlist.component.html

@@ -22,9 +22,10 @@
     </mat-card-subtitle>
   </mat-card-header>
   <mat-card-content>
-    <div class="postMedia">
-      <img *ngIf="post.mediaType === 'IMAGE'" [src]="post.mediaUrl"  alt="post image"/>
-      <video *ngIf="post.mediaType === 'VIDEO'" controls>
+    <mat-spinner *ngIf="post.mediaLoading" style="margin:0 auto; margin-top: 2em;" diameter="50"></mat-spinner>
+    <div class="postMedia" [hidden]="post.mediaLoading">
+      <img *ngIf="post.mediaType === 'IMAGE'" [src]="post.mediaUrl" (load)="onLoad(this.post)" alt="post image"/>
+      <video *ngIf="post.mediaType === 'VIDEO'" (load)="onLoad(this.post)" controls>
         <source [src]="post.mediaUrl" type="video/webm">
       </video>
     </div>

src/app/components/feed/postlist/postlist.component.ts

@@ -49,6 +49,10 @@ export class PostlistComponent implements OnInit {
     });
   }
 
+  onLoad(post: Post) {
+    post.mediaLoading = false;
+  }
+
   public showUserProfile(post: any) {
     this.router.navigate(['profile/' + post.author.id]);
   }

src/app/models/post.ts

@@ -13,6 +13,7 @@ export class Post {
   deletable: boolean;
   author: Author;
   activity: Activity;
+  mediaLoading: boolean;
   mediaUrl: string;
   mediaType: 'VIDEO' | 'IMAGE';
 
@@ -42,6 +43,7 @@ export class Post {
     if (media) {
       this.mediaUrl = environment.greenvironmentUrl + media.url;
       this.mediaType = media.type;
+      this.mediaLoading = true;
     }
   }
 }

src/app/services/feed/feed.service.ts

@@ -109,6 +109,7 @@ export class FeedService extends BaseService {
   }
 
   public postsAvailable = new BehaviorSubject<boolean>(true);
+  public posting = new BehaviorSubject<boolean>(false);
   public posts: BehaviorSubject<Post[]> = new BehaviorSubject([]);
   private activePostList: Sort = Sort.NEW;
   private offset = 0;
@@ -186,6 +187,7 @@ export class FeedService extends BaseService {
    * @param file - a file that is being uploaded with the post
    */
   private createPostRequest(body: { variables: any; query: string }, file?: File) {
+    this.posting.next(true);
     if (file) {
       return this.postGraphql(body, null, 0)
       .pipe(tap(response => {
@@ -197,8 +199,10 @@ export class FeedService extends BaseService {
             post.mediaType = result.fileName.endsWith('.png') ? 'IMAGE' : 'VIDEO';
             updatedPosts.unshift(post);
             this.posts.next(updatedPosts);
+            this.posting.next(false);
           }, error => {
             console.error(error);
+            this.posting.next(false);
             this.deletePost(post.id);
           });
         }
@@ -206,6 +210,7 @@ export class FeedService extends BaseService {
     } else if (!file) {
       return this.postGraphql(body, null, 0)
       .pipe(tap(response => {
+        this.posting.next(false);
         const updatedPosts = this.posts.getValue();
         if (this.activePostList === Sort.NEW) {
           const post = this.constructPost(response);