inabox/InABox.DynamicGrid/Editors/JsonEditorControl.cs

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using InABox.Core;

namespace InABox.DynamicGrid
{
    internal class DynamicJsonGrid<T> : DynamicGrid<T> where T : BaseObject, new()
    {
        private int rowindex = -1;


        protected override void DeleteItems(params CoreRow[] rows)
        {
            var indexes = rows.Select(x => x.Index).OrderBy(x => x).ToArray();
            foreach (var index in indexes)
                Data.Rows.RemoveAt(index);
        }

        protected override T LoadItem(CoreRow row)
        {
            rowindex = row.Index;
            return row.ToObject<T>();
        }

        protected override void Reload(Filters<T> criteria, Columns<T> columns, ref SortOrder<T> sort, Action<CoreTable, Exception> action)
        {
        }

        protected override void SaveItem(T item)
        {
            CoreRow row;
            if (rowindex == -1)
            {
                row = Data.NewRow();
                Data.Rows.Add(row);
            }
            else
            {
                row = Data.Rows[rowindex];
            }

            Data.LoadRow(row, item);
        }
    }

    internal class JsonEditorControl : DynamicEditorControl<string>
    {
        private Button _button;

        private string _value = "";

        public JsonEditorControl()
        {
            Width = 150;
        }

        public override int DesiredHeight()
        {
            return 25;
        }

        public override int DesiredWidth()
        {
            return 150;
        }

        public override void SetColor(Color color)
        {
            _button.Background = new SolidColorBrush(color);
        }

        public override void SetFocus()
        {
            // Not Sure what to do here?
        }

        protected override FrameworkElement CreateEditor()
        {
            _button = new Button();
            _button.Content = "Edit";
            _button.Click += _button_Click;
            return _button;
        }

        private void _button_Click(object sender, RoutedEventArgs e)
        {
            var type = (EditorDefinition as JsonEditor).Type;
            var listtype = typeof(List<>).MakeGenericType(type);
            var list = Activator.CreateInstance(listtype) as IList;
            if (!string.IsNullOrWhiteSpace(_value))
                Serialization.DeserializeInto(_value, list);

            var array = new object[list.Count];
            list.CopyTo(array, 0);

            var data = new CoreTable();
            data.LoadColumns(type);
            data.LoadRows(array);

            var gridtype = typeof(DynamicJsonGrid<>).MakeGenericType(type);
            var grid = Activator.CreateInstance(gridtype) as IDynamicGrid;
            grid.Data = data;
            if (grid.DirectEdit(data))
            {
                var saved = data.Rows.Select(x => x.ToObject(type)).ToArray();
                _value = Serialization.Serialize(saved, true);
                CheckChanged();
            }
        }

        protected override string RetrieveValue()
        {
            return _value;
        }

        protected override void UpdateValue(string value)
        {
            _value = "";
        }
    }
}