src/OneScript.StandardLibrary/XMLSchema/Collections/XSComponentList.cs - develop - smwwiki/OneScript_fork

src/OneScript.StandardLibrary/XMLSchema/Collections/XSComponentList.cs
135 строк4 KB
Yuri Goncharuk
Для классов библиотеки запрещаем наследование
27 сен 2023, 23:27
27 сен 2023, 23:27f59e417
/*----------------------------------------------------------
This Source Code Form is subject to the terms of the 
Mozilla Public License, v.2.0. If a copy of the MPL 
was not distributed with this file, You can obtain one 
at http://mozilla.org/MPL/2.0/.
----------------------------------------------------------*/

using System;
using System.Collections.Generic;
using OneScript.Contexts;
using OneScript.Exceptions;
using OneScript.StandardLibrary.XMLSchema.Interfaces;
using OneScript.Values;
using ScriptEngine.Machine;
using ScriptEngine.Machine.Contexts;

namespace OneScript.StandardLibrary.XMLSchema.Collections
{
    [ContextClass("СписокКомпонентXS", "XSComponentList")]
    public sealed class XSComponentList : AutoCollectionContext<XSComponentList, IXSComponent>
    {
        private readonly List<IXSComponent> _items;

        private void InvokeEventCleared() => Cleared?.Invoke(this, EventArgs.Empty);

        private void InvokeEventInserted(IXSComponent component)
            => Inserted?.Invoke(this, new XSComponentListEventArgs(component));

        private void InvokeEventDeleted(IXSComponent component)
            => Deleted?.Invoke(this, new XSComponentListEventArgs(component));

        public XSComponentList() => _items = new List<IXSComponent>();
    
        public event EventHandler Cleared;
        public event EventHandler<XSComponentListEventArgs> Inserted;
        public event EventHandler<XSComponentListEventArgs> Deleted;

        #region OneScript

        #region Methods

        [ContextMethod("Вставить", "Insert")]
        public void Insert(int index, IXSComponent value)
        {
            if (_items.Contains(value))
                return;

            _items.Insert(index, value);
            InvokeEventInserted(value);
        }

        [ContextMethod("Добавить", "Add")]
        public void Add(IXSComponent value)
        {

            if (_items.Contains(value))
                return;

            _items.Add(value);
            InvokeEventInserted(value);
        }

        [ContextMethod("Количество", "Count")]
        public override int Count() => _items.Count;

        [ContextMethod("Очистить", "Clear")]
        public void Clear()
        {
            _items.Clear();
            InvokeEventCleared();
        }

        [ContextMethod("Получить", "Get")]
        public IXSComponent Get(int index) => _items[index];

        [ContextMethod("Содержит", "Contains")]
        public bool Contains(IXSComponent value) => _items.Contains(value);

        [ContextMethod("Удалить", "Delete")]
        public void Delete(IValue value)
        {
            int index;

            switch (value.GetRawValue())
            {
                case BslNumericValue n:
                    index = (int)n;
                    break;

                case IXSComponent xsComponent:
                    index = _items.IndexOf(xsComponent);
                    if (index == -1)
                        return;
                    break;

                default:
                    throw RuntimeException.InvalidArgumentType();
            }

            _items.RemoveAt(index);
            InvokeEventDeleted(value as IXSComponent);
        }

        [ContextMethod("Установить", "Set")]
        public void Set(int index, IXSComponent value)
        {
            if (_items.Contains(value))
                return;

            IXSComponent currentValue = _items[index];

            _items[index] = value;

            InvokeEventDeleted(currentValue);
            InvokeEventInserted(value);
        }

        #endregion

        #endregion

        #region ICollectionContext

        public override IEnumerator<IXSComponent> GetEnumerator() => _items.GetEnumerator();

        #endregion
    }

    public class XSComponentListEventArgs : EventArgs
    {
        public IXSComponent Component { get; }

        public XSComponentListEventArgs(IXSComponent component) => Component = component;
    }
}