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 Feed_AddFavEvent(object sender, EventArgs e)
{
FeedSelector feeder = sender as FeedSelector;
favHist.addFavourite(feeder.hashtag, feeder.startTime);
MessageDialog dialog = new MessageDialog("Search has been added to your favourites.", "Favourite added");
dialog.ShowAsync();
}
private void Timeline_CloseEvent(object sender, EventArgs e)
{
if (Mobile)
{
PivotItem pi = (sender as TwarpTimeline).Parent as PivotItem;
if (twarpPivot.Items.Count > 1)
{
twarpPivot.Items.Remove(pi);
}
else
{
// restore and reset the feed selector:
FeedSelector feed = (sender as TwarpTimeline).feeder;
feed.hashtag = "";
feed.startTime = DateTime.Now;
pi.Header = "New feed";
pi.Content = feed;
}
}
else
{
if (mainStack.ColumnDefinitions.Count > 1)
{
mainStack.Children.Remove(sender as TwarpTimeline);
renumberColumns(mainStack);
mainStack.ColumnDefinitions.RemoveAt(0);
}
else
{
var index = mainStack.Children.IndexOf(sender as TwarpTimeline);
FeedSelector feed = (sender as TwarpTimeline).feeder;
feed.hashtag = "";
feed.startTime = DateTime.Now;
mainStack.Children[index] = feed;
}
}
}
private void Favourites_HistoryEvent(object sender, EventArgs e)
{
// close menu (if on desktop):
if (Desktop)
{
MainSplitView.IsPaneOpen = false;
}
// Get favourite from parameter:
Warp hist = sender as Warp;
if (Mobile)
{
// disable back button - mobile only
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;
mainContent.Content = twarpPivot;
// see if we already have a new feed tab, then select it:
for (var i = 0; i < twarpPivot.Items.Count; i++)
{
PivotItem item = (PivotItem)twarpPivot.Items[i];
if ((String)item.Header == "New feed")
{
FeedSelector fs = item.Content as FeedSelector;
fs.hashtag = hist.hashtag;
fs.startTime = hist.startTime;
twarpPivot.SelectedIndex = i;
return;
}
}
if (twarpPivot.Items.Count >= 4)
{
MessageDialog dialog = new MessageDialog("The number of timelines to follow is limited to four.", "Cannot add new search");
dialog.ShowAsync();
return;
}
}
else
{
// see if we already have a feed selector open, then replace it:
foreach (var item in mainStack.Children)
{
if (item is FeedSelector)
{
((FeedSelector)item).hashtag = hist.hashtag;
((FeedSelector)item).startTime = hist.startTime;
return;
}
}
if (mainStack.Children.Count >= 4)
{
MessageDialog dialog = new MessageDialog("The number of timelines to follow is limited to four.", "Cannot add new search");
dialog.ShowAsync();
return;
}
}
FeedSelector feeder = new FeedSelector();
feeder.TwarpEvent += Feed_TwarpEvent;
feeder.AddFavEvent += Feed_AddFavEvent;
feeder.hashtag = hist.hashtag;
feeder.startTime = hist.startTime;
if (Mobile)
{
PivotItem pi = new PivotItem();
pi.Content = feeder;
pi.Header = "New feed";
twarpPivot.Items.Add(pi);
twarpPivot.SelectedIndex = twarpPivot.Items.Count - 1;
}
else
{
var col = new ColumnDefinition();
col.Width = new GridLength(1, GridUnitType.Star);
mainStack.ColumnDefinitions.Add(col);
mainStack.Children.Add(feeder);
Grid.SetColumn(feeder, mainStack.Children.Count() - 1);
}
}
public MainPage()
{
this.InitializeComponent();
Application.Current.Resuming += Current_Resuming;
// check if we're on a mobile device:
Mobile = Windows.System.Profile.AnalyticsInfo.VersionInfo.DeviceFamily == "Windows.Mobile";
Desktop = !Mobile;
// create menu for desktop version
if (Desktop)
{
// desktop version of the app - create the menu:
menuContent.Children.Insert(0, favHist);
// menuContent.Children.Insert(1, twarpSettings);
}
// initialise favourites and wire up events:
favHist.init();
favHist.FavouriteEvent += Favourites_FavouriteEvent;
favHist.HistoryEvent += Favourites_HistoryEvent;
// add event handler for pivot item change:
twarpPivot.SelectionChanged += TwarpPivot_SelectionChanged;
// load feed selection user control and wire up handler:
// mainContent.Content = feed;
FeedSelector feed = new FeedSelector();
feed.TwarpEvent += Feed_TwarpEvent;
feed.AddFavEvent += Feed_AddFavEvent;
// add feed to first item of pivot:
if (Mobile)
{
mainContent.Content = twarpPivot;
// twarpPivot.Margin = new Thickness { Top = -25 };
PivotItem pi = new PivotItem()
{
Header = "New feed"
};
pi.Content = feed;
twarpPivot.Items.Add(pi);
twarpPivot.SelectedIndex = 0;
}
else
{
mainStack.Children.Add(feed);
Grid.SetColumn(feed, 0);
}
SystemNavigationManager.GetForCurrentView().BackRequested += (s, e) =>
{
// mobile only...
// Restore to previous stage:
switch (stage)
{
case app_stage.tweet:
PivotItem pItem = (PivotItem)twarpPivot.Items[twarpPivot.SelectedIndex];
ViewTweet tweet = (ViewTweet)pItem.Content;
pItem.Content = tweet.timeline;
stage = app_stage.timeline;
// SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;
e.Handled = true;
break;
case app_stage.timeline:
// return to feed selector:
PivotItem pItem2 = (PivotItem)twarpPivot.Items[twarpPivot.SelectedIndex];
pItem2.Header = "New feed";
pItem2.Content = ((TwarpTimeline)pItem2.Content).feeder;
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;
stage = app_stage.feeder;
e.Handled = true;
break;
case app_stage.settings:
case app_stage.fav:
mainContent.Content = twarpPivot;
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;
stage = app_stage.main;
e.Handled = true;
break;
default:
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;
e.Handled = false;
break;
}
};
}
private void feeder_Click(object sender, RoutedEventArgs e)
{
// close menu (if on desktop):
if (Desktop)
{
MainSplitView.IsPaneOpen = false;
}
// disable back button - mobile only
if (Mobile)
{
SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;
// see if we already have a new feed tab, then select it:
for (var i = 0; i < twarpPivot.Items.Count; i++)
{
if ((String)((PivotItem)twarpPivot.Items[i]).Header == "New feed")
{
twarpPivot.SelectedIndex = i;
mainContent.Content = twarpPivot;
return;
}
}
if (twarpPivot.Items.Count >= 4)
{
MessageDialog dialog = new MessageDialog("The number of timelines to follow is limited to four.", "Cannot add new search");
dialog.ShowAsync();
return;
}
}
else
{
// see if we already have a feed selector open, if so don't create a new one:
foreach (var item in mainStack.Children)
{
if (item is FeedSelector)
{
MessageDialog dialog = new MessageDialog("You already have a feed selector open.", "Already open");
dialog.ShowAsync();
return;
}
}
if (mainStack.Children.Count >= 4)
{
MessageDialog dialog = new MessageDialog("The number of timelines to follow is limited to four.", "Cannot add new search");
dialog.ShowAsync();
return;
}
}
// create new feed selector:
FeedSelector feed = new FeedSelector();
feed.TwarpEvent += Feed_TwarpEvent;
feed.AddFavEvent += Feed_AddFavEvent;
if (Mobile)
{
// add feed to first item of pivot:
// if (twarpPivot.Items.Count > 0)
// twarpPivot.Margin = new Thickness { Top = -50 };
PivotItem pi = new PivotItem()
{
Header = "New feed"
};
pi.Content = feed;
twarpPivot.Items.Add(pi);
twarpPivot.SelectedIndex = twarpPivot.Items.Count - 1;
}
else
{
var col = new ColumnDefinition();
col.Width = new GridLength(1, GridUnitType.Star);
mainStack.ColumnDefinitions.Add(col); mainStack.Children.Add(feed);
Grid.SetColumn(feed, mainStack.Children.Count - 1);
}
}
