/// <summary>
/// Fired when the screen mode changes.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OnScreenModeChanged(object sender, OnScreenModeChangedArgs e)
{
lock (m_postsLists)
{
Visibility flipViewMenuVis = m_host.CurrentScreenMode() == ScreenMode.Single ? Visibility.Visible : Visibility.Collapsed;
foreach (Post post in m_postsLists)
{
post.FlipViewMenuButton = flipViewMenuVis;
}
}
}
public void OnNavigatingTo()
{
if (m_host.CurrentScreenMode() == ScreenMode.Split)
{
ui_slidingImageControl.BeginAnimation();
}
}
public async void OnNavigatingTo()
{
if (m_host.CurrentScreenMode() == ScreenMode.Split)
{
ui_slidingImageControl.BeginAnimation();
}
// Set the status bar color and get the size returned. If it is not 0 use that to move the
// color of the page into the status bar.
double statusBarHeight = await m_host.SetStatusBar(null, 0);
ui_contentRoot.Margin = new Thickness(0, -statusBarHeight, 0, 0);
}
/// <summary>
/// Update the posts in flip view. Staring at the index given and going until the list is empty.
/// </summary>
/// <param name="startingPos"></param>
/// <param name="newPosts"></param>
private async void UpdatePosts(int startingPos, IReadOnlyList <Post> newPosts)
{
await Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Low, () =>
{
var flipViewMenuVis = _host.CurrentScreenMode() == ScreenMode.Single ? Visibility.Visible : Visibility.Collapsed;
// Grab the list lock
lock (_postsLists)
{
// If we are currently in a deferred scenario then we need to handle updates
// differently since the list won't match the list that is expected
if (_deferredPostList.Count != 0)
{
if (_postsLists.Count <= 0 || newPosts.Count <= 0 ||
!_postsLists[0].Context.Post.Id.Equals(newPosts[0].Id))
{
return;
}
// The current post is updated, so update it.
// We can't replace the time because flip view will freak out
// so just update whatever UI we need to update.
_postsLists[0].Context.Post.Likes = newPosts[0].Likes;
_postsLists[0].Context.Post.SubTextLine1 = newPosts[0].SubTextLine1;
_postsLists[0].Context.Post.SubTextLine2PartOne = newPosts[0].SubTextLine2PartOne;
_postsLists[0].Context.Post.SubTextLine2PartTwo = newPosts[0].SubTextLine2PartTwo;
_postsLists[0].Context.Post.Domain = newPosts[0].Domain;
_postsLists[0].Context.Post.Score = newPosts[0].Score;
// We have done all we want to do, leave now.
return;
}
// If the list is currently empty we want to only load the first element and defer the rest of the
// elements. If the target post is -1 we load the first element, if not we load it only.
var deferLoadPosts = _postsLists.Count == 0;
var deferTargetPost = _targetPost;
_targetPost = null;
if (deferLoadPosts)
{
// If we are doing a defer make sure we have a target
if (string.IsNullOrWhiteSpace(deferTargetPost) && newPosts.Count > 0)
{
deferTargetPost = newPosts[0].Id;
}
}
// Now setup the post update
var insertIndex = startingPos;
// Set up the objects for the UI
foreach (var post in newPosts)
{
if (post == null)
{
continue;
}
// Check if we are adding or inserting.
var isReplace = insertIndex < _postsLists.Count;
if (isReplace)
{
if (_postsLists[insertIndex].Context.Post.Id.Equals(post.Id))
{
// We can't replace the time because flip view will freak out
// so just update whatever UI we need to update.
_postsLists[insertIndex].Context.Post.Likes = post.Likes;
_postsLists[insertIndex].Context.Post.SubTextLine1 = post.SubTextLine1;
_postsLists[insertIndex].Context.Post.SubTextLine2PartOne = post.SubTextLine2PartOne;
_postsLists[insertIndex].Context.Post.SubTextLine2PartTwo = post.SubTextLine2PartTwo;
_postsLists[insertIndex].Context.Post.Domain = post.Domain;
_postsLists[insertIndex].Context.Post.Score = post.Score;
}
else
{
// Replace the entire post if it brand new
_postsLists[insertIndex].Context.Post = post;
}
}
else
{
// If we are deferring posts only add the target
if (deferLoadPosts)
{
if (post.Id.Equals(deferTargetPost))
{
// Try catch is a work around for bug https://github.com/QuinnDamerell/Baconit/issues/53
try
{
_postsLists.Add(new FlipViewPostItem(_host, _collector, post, _targetComment));
}
catch (Exception e)
{
TelemetryManager.ReportUnexpectedEvent(this, "UpdatePosts", e);
App.BaconMan.MessageMan.DebugDia("Adding to postList failed! (deferLoadPosts)", e);
}
}
// Add it to the deferred list, also add the deferred post so we know
// where it is in the list.
_deferredPostList.Add(post);
}
else
{
// Otherwise, just add it.
// Try catch is a work around for bug https://github.com/QuinnDamerell/Baconit/issues/53
try
{
_postsLists.Add(new FlipViewPostItem(_host, _collector, post, _targetComment));
}
catch (Exception e)
{
TelemetryManager.ReportUnexpectedEvent(this, "UpdatePosts", e);
App.BaconMan.MessageMan.DebugDia("Adding to postList failed! (!deferLoadPosts)", e);
}
}
}
// Set the menu button
post.FlipViewMenuButton = flipViewMenuVis;
// Add one to the insert index
insertIndex++;
}
// If the item source hasn't been set yet do it now.
if (ui_flipView.ItemsSource == null)
{
ui_flipView.ItemsSource = _postsLists;
}
}
// Hide the loading overlay if it is visible
HideFullScreenLoading();
});
}
