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using System;
using System.Reflection;
using AppKit;
using CoreGraphics;
using Foundation;
using ObjCRuntime;
using Xamarin.PropertyEditing.Mac.Controls;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Mac
{
internal class CustomExpressionView : BasePopOverViewModelControl
{
private const string CustomExpressionPropertyString = "CustomExpression";
private const string PreviewCustomExpressionString = "PreviewCustomExpression";
private const string AutocompleteItemsString = "AutocompleteItems";
public AutoClosePopOver PopOver { get; internal set; }
public CustomExpressionView (IHostResourceProvider hostResources, PropertyViewModel viewModel)
: base (hostResources, viewModel, Properties.Resources.CustomExpression, "pe-custom-expression-32")
{
Frame = new CGRect (CGPoint.Empty, new CGSize (250, 80));
Type vmType = viewModel.GetType ();
PropertyInfo previewCustomExpressionPropertyInfo = vmType.GetProperty (PreviewCustomExpressionString);
previewCustomExpressionPropertyInfo.SetValue (viewModel, string.Empty);
PropertyInfo customExpressionPropertyInfo = vmType.GetProperty (CustomExpressionPropertyString);
var value = customExpressionPropertyInfo.GetValue (viewModel);
NSControl editorControl = null;
PropertyInfo customAutocompleteItemsPropertyInfo = vmType.GetProperty (AutocompleteItemsString);
if (customAutocompleteItemsPropertyInfo.GetValue (viewModel) is ObservableCollectionEx<string> values) {
if (values != null && values.Count > 0)
editorControl = new AutocompleteComboBox (hostResources, viewModel, values, previewCustomExpressionPropertyInfo) {
AccessibilityEnabled = true,
AccessibilityTitle = Properties.Resources.AccessibilityCustomExpressionCombobox,
};
}
if (editorControl == null)
editorControl = new NSTextField {
AccessibilityEnabled = true,
AccessibilityTitle = Properties.Resources.AccessibilityCustomExpressionEditControl,
};
editorControl.TranslatesAutoresizingMaskIntoConstraints = false;
editorControl.StringValue = (string)value ?? string.Empty;
editorControl.Activated += (sender, e) => {
PopOver.CloseOnEnter = true;
customExpressionPropertyInfo.SetValue (viewModel, editorControl.StringValue);
};
AddSubview (editorControl);
this.AddConstraints (new[] {
NSLayoutConstraint.Create (editorControl, NSLayoutAttribute.Top, NSLayoutRelation.Equal, this, NSLayoutAttribute.Top, 1f, 37f),
NSLayoutConstraint.Create (editorControl, NSLayoutAttribute.Left, NSLayoutRelation.Equal, this, NSLayoutAttribute.Left, 1f, 38f),
NSLayoutConstraint.Create (editorControl, NSLayoutAttribute.Width, NSLayoutRelation.Equal, this, NSLayoutAttribute.Width, 1f, -57f),
NSLayoutConstraint.Create (editorControl, NSLayoutAttribute.Height, NSLayoutRelation.Equal, 1f, PropertyEditorControl.DefaultControlHeight),
});
}
}
}
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