public MessageCell()
{
this.SetBinding(TextProperty, "Subject");
this.SetBinding(DetailProperty, "MessagePreview");
var delete = new MenuItem {
Text = "Delete", IsDestructive = true
};
delete.SetBinding(MenuItem.CommandProperty, "Delete");
var mark = new MenuItem {
Text = "Mark", Icon = "calculator.png"
};
var move = new MenuItem {
Text = "Move"
};
//move.Clicked += async (sender, e) => await Navigation.PopAsync();
ContextActions.Add(mark);
ContextActions.Add(delete);
ContextActions.Add(move);
var clear = new MenuItem {
Text = "Clear Items"
};
clear.Clicked += (sender, args) => ContextActions.Clear();
ContextActions.Add(clear);
}
protected override void OnBindingContextChanged()
{
base.OnBindingContextChanged();
var VM = BindingContext as CellViewModelBase;
if (VM == null)
{
return;
}
ContextActions.Clear();
if (VM.IsEditable)
{
var menuRemove = new MenuItem
{
Text = "Rimuovi",
IsDestructive = true
};
menuRemove.Clicked += (sender, e) =>
{
var item = (CellViewModelBase)BindingContext; if (item == null)
{
return;
}
};
}
}
private void Reset()
{
NameLabel.Text = "";
AmountLabel.Text = "";
MinusButton.IsVisible = false;
Image.Source = null;
ContextActions.Clear();
}
protected override void OnBindingContextChanged()
{
base.OnBindingContextChanged();
Reset();
if (ViewModel != null)
{
var foodstuff = ViewModel.Foodstuff;
var amountText = ViewModel.RequiredAmount.Match(
a => $"{ViewModel.Amount} / {a} {foodstuff.BaseAmount.Unit.ToString()}",
_ => foodstuff.BaseAmount.WithCount(ViewModel.Amount).ToString()
);
NameLabel.Text = ViewModel.Foodstuff.Name;
AmountLabel.Text = amountText;
MinusButton.IsVisible = ViewModel.OnMinus != null;
Image.Source = ViewModel.Foodstuff.ImageUrl;
var actions = ViewModel.MenuActions.Select(a => Controls.Controls.MenuItem(a));
ContextActions.Clear();
actions.ForEach(a => ContextActions.Add(a));
}
}