protected override void Attach()
{
_control = ControlObject as Menu;
List <MenuItem> items = new List <MenuItem>();
HeaderedItemsControlUtility.GetChildren(_control, items);
foreach (var element in items)
{
var item = element;
string text = HeaderedItemsControlUtility.GetItemText(item);
if (string.IsNullOrEmpty(text))
{
continue;
}
RoutedEventHandler opened = (s, e) =>
{
SubmenuOpened(item, new string[] { text });
};
item.SubmenuOpened += opened;
RoutedEventHandler click = (s, e) =>
{
Click(item, new string[] { text });
};
item.Click += click;
_detach.Add(() =>
{
item.SubmenuOpened -= opened;
item.Click -= click;
});
}
}
void Expanded(TreeViewItem parentItem, string[] texts)
{
AddSentence(new TokenName(), ".GetItem(" + MakeGetArgs(texts) + ").EmulateChangeExpanded(true",
new TokenAsync(CommaType.Non), ");");
RoutedEventHandler closedForGenerate = null;
closedForGenerate = (s, ee) =>
{
Collapsed(parentItem, texts);
parentItem.Collapsed -= closedForGenerate;
};
parentItem.Collapsed += closedForGenerate;
parentItem.Dispatcher.BeginInvoke((MyAction) delegate
{
List <TreeViewItem> items = new List <TreeViewItem>();
HeaderedItemsControlUtility.GetChildren(parentItem, items);
foreach (var element in items)
{
var item = element;
string text = HeaderedItemsControlUtility.GetItemText(item);
if (string.IsNullOrEmpty(text))
{
continue;
}
List <string> nextTexts = new List <string>(texts);
nextTexts.Add(text);
RoutedEventHandler opened = (s, e) =>
{
Expanded(item, nextTexts.ToArray());
};
item.Expanded += opened;
RoutedEventHandler click = (s, e) =>
{
SelectedChanged(item, nextTexts.ToArray());
};
item.Selected += click;
item.Unselected += click;
RoutedEventHandler closed = null;
closed = (s, ee) =>
{
item.Expanded -= opened;
item.Selected -= click;
item.Unselected -= click;
parentItem.Collapsed -= closed;
};
parentItem.Collapsed += closed;
}
});
}
void SubmenuOpened(MenuItem parentItem, string[] texts)
{
parentItem.Dispatcher.BeginInvoke((MyAction) delegate
{
List <MenuItem> items = new List <MenuItem>();
HeaderedItemsControlUtility.GetChildren(parentItem, items);
foreach (var element in items)
{
var item = element;
string text = HeaderedItemsControlUtility.GetItemText(item);
if (string.IsNullOrEmpty(text))
{
continue;
}
List <string> nextTexts = new List <string>(texts);
nextTexts.Add(text);
RoutedEventHandler opened = (s, e) =>
{
SubmenuOpened(item, nextTexts.ToArray());
};
item.SubmenuOpened += opened;
RoutedEventHandler click = (s, e) =>
{
Click(item, nextTexts.ToArray());
};
item.Click += click;
RoutedEventHandler closed = null;
closed = (s, ee) =>
{
item.SubmenuOpened -= opened;
item.Click -= click;
parentItem.SubmenuClosed -= closed;
};
parentItem.SubmenuClosed += closed;
}
});
}
void AttachChildren(Visual parent, List <MenuItem> attachedChildren, string[] texts)
{
List <MenuItem> items = new List <MenuItem>();
HeaderedItemsControlUtility.GetChildren(parent, items);
foreach (var element in items)
{
var item = element;
string text = HeaderedItemsControlUtility.GetItemText(item);
if (string.IsNullOrEmpty(text))
{
continue;
}
List <string> nextTexts = new List <string>(texts);
nextTexts.Add(text);
//まだイベントにアタッチしてない場合
if (!attachedChildren.Contains(item))
{
attachedChildren.Add(item);
RoutedEventHandler click = (s, e) =>
{
Click(item, nextTexts.ToArray());
};
item.Click += click;
_detach.Add(() =>
{
item.Click -= click;
});
}
//子アイテムにアタッチ
AttachChildren(item, attachedChildren, nextTexts.ToArray());
}
}