private async void OnPost_Deleted(object sender, RoutedEventArgs e)
{
_autoUpdateCountTimer.Stop();
PostWidget post = sender as PostWidget;
if (post == null)
{
_autoUpdateCountTimer.Start();
return;
}
if (ViewModel.LastNewHeadPostId == post.CurrentPostData.Id)
{
await UpdatePosts()
.ConfigureAwait(true);
_autoUpdateCountTimer.Start();
return;
}
lstPosts.Children.Remove(post);
--ViewModel.Offset;
if (lstPosts.Children.Count == 0)
{
IsEmpty = true;
}
_autoUpdateCountTimer.Start();
}
protected override void OnAppearing()
{
base.OnAppearing();
SubredditWidget.PostSelected += SubredditWidget_PostSelected;
PostWidget.OnAppearing();
SubredditWidget.OnAppearing();
}
public Task AddMorePosts(List <PostSchema> posts)
{
return(Task.Run(async() =>
{
foreach (var post in posts)
{
await Dispatcher.InvokeAsync(() =>
{
PostWidget widget = new PostWidget
{
CurrentPostData = post,
TextSizeLimit = true
};
widget.PostClick += OnPost_Click;
widget.PostDelete += OnPost_Deleted;
lstPosts.Children.Add(widget);
}).Task.ConfigureAwait(false);
}
Dispatcher.Invoke(() =>
{
ViewModel.Offset += posts.Count;
});
}));
}
public async Task UpdatePosts()
{
_autoUpdateCountTimer.Stop();
btnRefresh.IsEnabled = false;
await ShowLoadingGrid(true)
.ConfigureAwait(true);
ViewModel.NewPostsCount = 0;
svPosts.IsEnabled = false;
foreach (var post in lstPosts.Children)
{
PostWidget postWidget = post as PostWidget;
if (postWidget == null)
{
continue;
}
ImageBehavior.SetAnimatedSource(postWidget.PostImage, null);
}
lstPosts.Children.Clear();
svPosts.ScrollToHorizontalOffset(0);
ViewModel.Offset = 0;
IsEmpty = true;
UpdateLayout();
GC.WaitForPendingFinalizers();
GC.Collect();
await LoadMorePosts()
.ConfigureAwait(true);
if (lstPosts.Children.Count == 0)
{
ViewModel.LastNewHeadPostId = -1;
}
else
{
ViewModel.LastNewHeadPostId = (lstPosts.Children[0] as PostWidget)?
.CurrentPostData.Id ?? -1;
IsEmpty = false;
}
svPosts.IsEnabled = true;
await ShowLoadingGrid(false)
.ConfigureAwait(true);
btnRefresh.IsEnabled = true;
_autoUpdateCountTimer.Start();
}
async Task <bool> UpdatePosts(PostRequest filters)
{
postsPanel.Items.Clear();
var postsResponse = await PostAPI.GetAllPosts(filters, AppPersistent.UserToken);
if (postsResponse == null)
{
return(false);
}
foreach (var post in postsResponse.data)
{
PostWidget widget = new PostWidget()
{
PostText = post.text,
ImageURL = post.attachments[0].photo.photo_medium,
CurrentPostData = post
};
postsPanel.Items.Add(widget);
}
return(true);
}
