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using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
using Xamarin.PropertyEditing.Common;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Windows
{
internal partial class CreateBindingWindow
: WindowEx
{
public CreateBindingWindow (IEnumerable<ResourceDictionary> merged, TargetPlatform platform, IObjectEditor editor, IPropertyInfo property)
{
var vm = new CreateBindingViewModel (platform, editor, property);
vm.CreateValueConverterRequested += OnCreateValueConverterRequested;
DataContext = vm;
InitializeComponent ();
Resources.MergedDictionaries.AddItems (merged);
}
private void OnCreateValueConverterRequested (object sender, CreateValueConverterEventArgs e)
{
var vm = (CreateBindingViewModel) DataContext;
ITypeInfo valueConverter = vm.TargetPlatform.EditorProvider.KnownTypes[typeof(CommonValueConverter)];
var typesTask = vm.TargetPlatform.EditorProvider.GetAssignableTypesAsync (valueConverter, childTypes: false)
.ContinueWith (t => t.Result.GetTypeTree(), TaskScheduler.Default);
var result = CreateValueConverterWindow.RequestConverter (this, vm.TargetPlatform, vm.Target, new AsyncValue<IReadOnlyDictionary<IAssemblyInfo, ILookup<string, ITypeInfo>>> (typesTask));
if (result == null)
return;
e.Name = result.Item1;
e.ConverterType = result.Item2;
e.Source = result.Item3;
}
private void OnOkClicked (object sender, RoutedEventArgs e)
{
DialogResult = true;
}
private void OnCancelClicked (object sender, RoutedEventArgs e)
{
DialogResult = false;
}
internal static object CreateBinding (FrameworkElement owner, TargetPlatform platform, IObjectEditor editor, IPropertyInfo property)
{
Window ownerWindow = Window.GetWindow (owner);
var window = new CreateBindingWindow (owner.Resources.MergedDictionaries, platform, editor, property) {
Owner = ownerWindow
};
bool? result = window.ShowDialog ();
if (!result.HasValue || !result.Value)
return null;
var vm = (CreateBindingViewModel)window.DataContext;
return vm.SelectedObjects.Single();
}
private void OnMoreSettingsExpanded (object sender, RoutedEventArgs e)
{
var fe = this.moreSettings.Content as FrameworkElement;
if (fe == null)
return;
fe.Measure (new Size (Double.PositiveInfinity, Double.PositiveInfinity));
Height += fe.DesiredSize.Height;
}
private void OnMoreSettingsCollapsed (object sender, RoutedEventArgs e)
{
var fe = this.moreSettings.Content as FrameworkElement;
if (fe == null)
return;
Height -= fe.DesiredSize.Height;
}
}
}
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