inabox/inabox.wpf/DynamicGrid/Editors/DynamicEditorControl.cs

using InABox.Core;
using System.Collections.Generic;
using System.ComponentModel;
using System.Windows;
using System.Windows.Media;

namespace InABox.DynamicGrid
{

    public abstract class DynamicEditorControl<T, TEditor> : BaseDynamicEditorControl<TEditor>, IDynamicEditorControl<T>
        where TEditor : IBaseEditor
    {
        //{
        //    get { return (EditorControlValueChangedHandler)GetValue(OnEditorValueChangedProperty); }
        //    set { SetValue(OnEditorValueChangedProperty, value) }
        //}

        protected bool Updating;

        public DynamicEditorControl()
        {
            Loaded = false;
            OtherValues = new();
            MinHeight = 25;
            Focusable = false;
        }

        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public override bool Changed { get; set; }

        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public T Value
        {
            get => RetrieveValue();
            set => UpdateValue(value);
        }

        [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        protected virtual Dictionary<string, object?> OtherValues { get; }

        //public static readonly DependencyProperty OnEditorValueChangedProperty =
        //    DependencyProperty.Register(nameof(OnEditorValueChanged), typeof(EditorControlValueChangedHandler), typeof(DynamicEditorControl<T>));

        public override event EditorControlValueChangedHandler? OnEditorValueChanged;

        protected void EditorValueChanged(IDynamicEditorControl sender, Dictionary<string, object?> values) => OnEditorValueChanged?.Invoke(sender, values);

        protected virtual bool CheckChanged()
        {
            //Logger.Send(LogType.Information, "", string.Format("{0}({1}).CheckChanged()", GetType().EntityName().Split('.').Last(), ColumnName));
            if (Loaded && !Updating)
            {
                Updating = true;
                try
                {
                    var values = new Dictionary<string, object?>();
                    var sColumn = string.IsNullOrEmpty(ColumnName) ? "" : ColumnName;
                    values[sColumn] = RetrieveValue();
                    foreach (var key in OtherValues.Keys)
                        values[key] = OtherValues[key];
                    OnEditorValueChanged?.Invoke(this, values);
                }
                finally
                {
                    Changed = true;
                    Updating = false;
                }
            }

            return Changed;
        }

        public override void SetValue(string property, object? value)
        {
            UpdateValue(value != null ? (T)value : default);
        }

        public override object? GetValue(string property)
        {
            return RetrieveValue();
        }

        public override Dictionary<string, object?> GetValues()
        {
            return new Dictionary<string, object?>
            {
                { ColumnName, RetrieveValue() }
            };
        }

        protected abstract T RetrieveValue();
        protected abstract void UpdateValue(T value);

        public override bool ShouldSerializeContent()
        {
            return false;
        }

        public override void SetEnabled(bool enabled)
        {
            if (Content is FrameworkElement element) element.IsEnabled = enabled;
            SetColor(enabled ? Color : Colors.WhiteSmoke);
        }

        public override void SetVisible(bool visible)
        {
            Visibility = visible ? Visibility.Visible : Visibility.Collapsed;
        }
    }
}