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correct format
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fabiocozzolino authored and fabiocozzolino committed Oct 7, 2017
1 parent c953ff3 commit f539bfd
Showing 1 changed file with 67 additions and 67 deletions.
134 changes: 67 additions & 67 deletions TitiusLabs.Forms/Controls/TLScrollView.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -10,10 +10,10 @@

namespace TitiusLabs.Forms.Controls
{
public class TLScrollView : ScrollView
{
public static readonly BindableProperty ItemsSourceProperty =
BindableProperty.Create("ItemsSource", typeof(IEnumerable), typeof(TLScrollView), default(IEnumerable),
public class TLScrollView : ScrollView
{
public static readonly BindableProperty ItemsSourceProperty =
BindableProperty.Create("ItemsSource", typeof(IEnumerable), typeof(TLScrollView), default(IEnumerable),
BindingMode.Default, null, new BindableProperty.BindingPropertyChangedDelegate(HandleBindingPropertyChangedDelegate));

private static object HandleBindingPropertyChangedDelegate(BindableObject bindable, object value)
Expand All @@ -22,55 +22,55 @@ private static object HandleBindingPropertyChangedDelegate(BindableObject bindab
}

public IEnumerable ItemsSource
{
get { return (IEnumerable)GetValue(ItemsSourceProperty); }
set { SetValue(ItemsSourceProperty, value); }
}
{
get { return (IEnumerable)GetValue(ItemsSourceProperty); }
set { SetValue(ItemsSourceProperty, value); }
}

public static readonly BindableProperty ItemTemplateProperty =
BindableProperty.Create("ItemTemplate", typeof(DataTemplate), typeof(TLScrollView), default(DataTemplate));
public static readonly BindableProperty ItemTemplateProperty =
BindableProperty.Create("ItemTemplate", typeof(DataTemplate), typeof(TLScrollView), default(DataTemplate));

public DataTemplate ItemTemplate
{
get { return (DataTemplate)GetValue(ItemTemplateProperty); }
set { SetValue(ItemTemplateProperty, value); }
}
public DataTemplate ItemTemplate
{
get { return (DataTemplate)GetValue(ItemTemplateProperty); }
set { SetValue(ItemTemplateProperty, value); }
}

public event EventHandler<ItemTappedEventArgs> ItemSelected;
public event EventHandler<ItemTappedEventArgs> ItemSelected;

public static readonly BindableProperty SelectedCommandProperty =
BindableProperty.Create("SelectedCommand", typeof(ICommand), typeof(TLScrollView), null);
public static readonly BindableProperty SelectedCommandProperty =
BindableProperty.Create("SelectedCommand", typeof(ICommand), typeof(TLScrollView), null);

public ICommand SelectedCommand
{
get { return (ICommand)GetValue(SelectedCommandProperty); }
set { SetValue(SelectedCommandProperty, value); }
}
public ICommand SelectedCommand
{
get { return (ICommand)GetValue(SelectedCommandProperty); }
set { SetValue(SelectedCommandProperty, value); }
}

public static readonly BindableProperty SelectedCommandParameterProperty =
BindableProperty.Create("SelectedCommandParameter", typeof(object), typeof(TLScrollView), null);
public static readonly BindableProperty SelectedCommandParameterProperty =
BindableProperty.Create("SelectedCommandParameter", typeof(object), typeof(TLScrollView), null);

public object SelectedCommandParameter
{
get { return GetValue(SelectedCommandParameterProperty); }
set { SetValue(SelectedCommandParameterProperty, value); }
}
public object SelectedCommandParameter
{
get { return GetValue(SelectedCommandParameterProperty); }
set { SetValue(SelectedCommandParameterProperty, value); }
}

static void HandleBindingPropertyChangedDelegate(BindableObject bindable, object oldValue, object newValue)
{
var isOldObservable = oldValue?.GetType().GetTypeInfo().ImplementedInterfaces.Any(i => i == typeof(INotifyCollectionChanged));
var isNewObservable = newValue?.GetType().GetTypeInfo().ImplementedInterfaces.Any(i => i == typeof(INotifyCollectionChanged));
var isOldObservable = oldValue?.GetType().GetTypeInfo().ImplementedInterfaces.Any(i => i == typeof(INotifyCollectionChanged));
var isNewObservable = newValue?.GetType().GetTypeInfo().ImplementedInterfaces.Any(i => i == typeof(INotifyCollectionChanged));

var tl = (TLScrollView)bindable;
if (isOldObservable.GetValueOrDefault(false))
var tl = (TLScrollView)bindable;
if (isOldObservable.GetValueOrDefault(false))
{
((INotifyCollectionChanged)oldValue).CollectionChanged -= tl.HandleCollectionChanged;
}
}

if (isNewObservable.GetValueOrDefault(false))
{
((INotifyCollectionChanged)newValue).CollectionChanged += tl.HandleCollectionChanged;
}
if (isNewObservable.GetValueOrDefault(false))
{
((INotifyCollectionChanged)newValue).CollectionChanged += tl.HandleCollectionChanged;
}

if (oldValue != newValue)
{
Expand All @@ -84,38 +84,38 @@ private void HandleCollectionChanged(object sender, NotifyCollectionChangedEvent
}

public void Render()
{
{
if (ItemTemplate == null || ItemsSource == null)
{
Content = null;
return;
}

var layout = new StackLayout();
layout.Orientation = Orientation == ScrollOrientation.Vertical ? StackOrientation.Vertical : StackOrientation.Horizontal;

foreach (var item in ItemsSource)
{
var command = SelectedCommand ?? new Command((obj) =>
{
var args = new ItemTappedEventArgs(ItemsSource, item);
ItemSelected?.Invoke(this, args);
});
var commandParameter = SelectedCommandParameter ?? item;

var viewCell = ItemTemplate.CreateContent() as ViewCell;
viewCell.View.BindingContext = item;
viewCell.View.GestureRecognizers.Add(new TapGestureRecognizer
{
Command = command,
CommandParameter = commandParameter,
NumberOfTapsRequired = 1
});

layout.Children.Add(viewCell.View);
}

Content = layout;
}
}
var layout = new StackLayout();
layout.Orientation = Orientation == ScrollOrientation.Vertical ? StackOrientation.Vertical : StackOrientation.Horizontal;

foreach (var item in ItemsSource)
{
var command = SelectedCommand ?? new Command((obj) =>
{
var args = new ItemTappedEventArgs(ItemsSource, item);
ItemSelected?.Invoke(this, args);
});
var commandParameter = SelectedCommandParameter ?? item;

var viewCell = ItemTemplate.CreateContent() as ViewCell;
viewCell.View.BindingContext = item;
viewCell.View.GestureRecognizers.Add(new TapGestureRecognizer
{
Command = command,
CommandParameter = commandParameter,
NumberOfTapsRequired = 1
});

layout.Children.Add(viewCell.View);
}

Content = layout;
}
}
}

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