private async void Feed_TwarpEvent(object sender, EventArgs e)
{
FeedSelector feeder = sender as FeedSelector;
if (feeder.hashtag.Length <= 2)
{
MessageDialog dialog = new MessageDialog("The hashtag must be greater than two characters in length.", "Invalid hashtag");
dialog.ShowAsync();
return;
}
TwarpTimeline timeline = new TwarpTimeline(Mobile);
timeline.feeder = feeder;
timeline.TweetEvent += Timeline_TweetEvent;
timeline.CloseEvent += Timeline_CloseEvent;
timeline.BackEvent += Timeline_BackEvent;
await timeline.init(feeder.hashtag, feeder.startTime);
if (timeline.noNetwork)
{
MessageDialog dialog = new MessageDialog("Please connect to the internet and try again.", "No internet connection");
dialog.ShowAsync();
return;
}
if (timeline.noData)
{
MessageDialog dialog = new MessageDialog("The twitter search returned no results. Try using a different hashtag.", "No results found");
dialog.ShowAsync();
return;
}
if (Mobile)
{
PivotItem pi = feeder.Parent as PivotItem;
pi.Content = timeline;
pi.Header = "#" + feeder.hashtag;
}
else
{
var index = mainStack.Children.IndexOf(feeder);
mainStack.Children[index] = timeline;
Grid.SetColumn(timeline, index);
}
// add history item:
favHist.addHistory(feeder.hashtag, feeder.startTime);
// enable back button
if (Mobile)
{
stage = app_stage.timeline;
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;
}
}
private void Current_Resuming(object sender, object e)
{
// App resuming, check age of any active timelines, refresh those that are still current:
DateTime old = DateTime.Now.AddMinutes(-30);
if (Mobile)
{
foreach (PivotItem item in twarpPivot.Items)
{
if (item.Content is TwarpTimeline)
{
TwarpTimeline timeline = item.Content as TwarpTimeline;
if (timeline.lastRefresh > old)
{
// timeline is less than 30 minutes old, refresh it:
timeline.refresh();
return;
}
else
{
// timeline is old, return to feed selector:
item.Content = timeline.feeder;
}
}
}
}
else
{
foreach (var item in mainStack.Children)
{
if (item is TwarpTimeline)
{
TwarpTimeline timeline = item as TwarpTimeline;
if (timeline.lastRefresh > old)
{
// timeline is less than 30 minutes old, let's refresh it:
timeline.refresh();
return;
}
else
{
// item is old, return to feed selector:
var index = mainStack.Children.IndexOf(item);
mainStack.Children[index] = item;
}
}
}
}
}