private void RaiseEvent(ItemEventHandler <T> eventHandler, T item)
{
if (eventHandler != null)
{
eventHandler(this, new ItemEventArgs <T>(item));
}
}
protected virtual void OnItemInvoked(ItemEventArgs <Item> e)
{
ItemEventHandler <Item> handler = ItemInvoked;
if (handler != null)
{
handler(this, e);
}
}
public static void RegisterEventHandler(ItemBehavior BehaviorType, ItemEventHandler EventHandler)
{
if (!mEventHandlers.ContainsKey(BehaviorType))
{
mEventHandlers.Add(BehaviorType, new List<ItemEventHandler>());
}
mEventHandlers[BehaviorType].Add(EventHandler);
}
public static void RegisterEventHandler(ItemBehavior BehaviorType, ItemEventHandler EventHandler)
{
if (!mEventHandlers.ContainsKey(BehaviorType))
{
mEventHandlers.Add(BehaviorType, new List <ItemEventHandler>());
}
mEventHandlers[BehaviorType].Add(EventHandler);
}
protected virtual void OnItemRemoved(ItemEventArgs <TItem> e)
{
ItemEventHandler <TItem> handler = ItemRemoved;
if (handler != null)
{
handler(this, e);
}
OnCollectionChanged(e);
}
static void Main(string[] args)
{
SetupConsole();
var menu = new Menu();
menu.HelpMessage = "Нажмите ESC для выхода из программы";
var todoListhandlers = new TodoListHandlers();
ItemEventHandler EscapeHandler = () => { return; };
menu.AddItem("Показать список", todoListhandlers.showList, EscapeHandler);
menu.AddItem("Добавить задачу в список", todoListhandlers.addItem, EscapeHandler);
menu.AddItem("Редактировать задачу из списка", todoListhandlers.editItem, EscapeHandler);
menu.AddItem("Удалить задачу из списка", todoListhandlers.deleteItem, EscapeHandler);
menu.Activate();
}
public void deleteItem()
{
using (var db = new TaskContext())
{
var list = new Menu();
list.HelpMessage = "Нажмите ESC для возврата в МЕНЮ. Для удаления записи нажмите ENTER";
list.HandleEscape = () => { return(0); };
foreach (var todo in db.Todos)
{
ItemEventHandler handleEnter = () => {
int id = todo.Id;
db.Todos.Remove(todo);
db.SaveChanges();
list.RemoveItemById(id);
};
ItemEventHandler handleEscape = () => { return; };
var item = new Item(todo.Task, handleEnter, handleEscape);
item.Id = todo.Id;
list.AddItem(item);
}
list.Activate();
}
}
public void editItem()
{
using (var db = new TaskContext())
{
var list = new Menu();
list.HelpMessage = "Нажмите ESC для возврата в МЕНЮ. Для редактирования записи нажмите ENTER";
list.HandleEscape = () => { return(0); };
foreach (var todo in db.Todos)
{
ItemEventHandler handleEnter = () => {
int id = todo.Id;
int y = db.Todos.Count();
Console.SetCursorPosition(0, ++y);
Console.Write("Редактирование записи: ");
string dataToEdit = todo.Task;
SendKeys.SendWait(dataToEdit);
var updatedTask = Console.ReadLine();
todo.Task = updatedTask;
db.SaveChanges();
list.RenameItemById(id, updatedTask);
};
ItemEventHandler handleEscape = () => { return; };
var item = new Item(todo.Task, handleEnter, handleEscape);
item.Id = todo.Id;
list.AddItem(item);
}
list.Activate();
}
Console.WriteLine("Editing list isn't done yet");
}
public void Add <TMessage>(Func <ClientContext, TMessage, bool> objectReceived)
{
if (_registeredTypes.Contains(typeof(TMessage)))
{
throw new InvalidOperationException();
}
_registeredTypes.Add(typeof(TMessage));
var name = typeof(TMessage).FullName;
ItemEventHandler <TypeData> handler = (o, e) =>
{
if (e.Item.IsHandled || e.Item.Parts[0] != name)
{
return;
}
e.Item.IsHandled = objectReceived(
e.Item.Context,
JsonSerializer.Deserialize <TMessage>(e.Item.Parts[1]));
};
lock (_unhandledData)
{
foreach (var unhandled in _unhandledData.ToArray())
{
handler(this, unhandled);
if (unhandled.IsHandled)
{
_unhandledData.Remove(unhandled);
}
}
}
DataReceived += handler;
}
public void AddItem(string item, ItemEventHandler handleEnter, ItemEventHandler handleEscape)
{
items.Add(new Item(item, handleEnter, handleEscape));
}
protected void OnDropItem(ItemEventArgs e)
{
ItemEventHandler handler = DropItem;
handler?.Invoke(this, e);
}
public DrawableItems(Bitmap img, Rectangle bnd)
{
MouseMove+= new ItemMouseEventHandler(stubMouseEvent);
MouseUp+= new ItemMouseEventHandler(stubMouseEvent);
MouseDown+= new ItemMouseEventHandler(stubMouseEvent);
MouseEnter+= new ItemEventHandler(stubEvent);
MouseLeave+=new ItemEventHandler(stubEvent);
this.Image=img;
this.bounds=bnd;
}
public DrawableItems()
{
MouseMove+= new ItemMouseEventHandler(stubMouseEvent);
MouseUp+= new ItemMouseEventHandler(stubMouseEvent);
MouseDown+= new ItemMouseEventHandler(stubMouseEvent);
MouseEnter+= new ItemEventHandler(stubEvent);
MouseLeave+=new ItemEventHandler(stubEvent);
}
public Item(string name, ItemEventHandler handleEnter, ItemEventHandler handleEscape)
{
Name = name;
this.HandleEnter = handleEnter;
this.HandleEscape = handleEscape;
}
