protected virtual void SetDefaultPrompt(ContentDialog dialog, StackPanel stack, PromptConfig config)
{
var txt = new TextBox
{
PlaceholderText = config.Placeholder ?? String.Empty,
Text = config.Text ?? String.Empty
};
if (config.MaxLength != null)
{
txt.MaxLength = config.MaxLength.Value;
}
stack.Children.Add(txt);
txt.SelectAll();
dialog.PrimaryButtonCommand = new Command(() =>
{
config.OnAction?.Invoke(new PromptResult(true, txt.Text.Trim()));
dialog.Hide();
});
if (config.OnTextChanged == null)
{
return;
}
var args = new PromptTextChangedArgs {
Value = txt.Text
};
config.OnTextChanged(args);
dialog.IsPrimaryButtonEnabled = args.IsValid;
txt.TextChanged += (sender, e) =>
{
args.IsValid = true; // reset
args.Value = txt.Text;
config.OnTextChanged(args);
dialog.IsPrimaryButtonEnabled = args.IsValid;
if (!args.Value.Equals(txt.Text))
{
txt.Text = args.Value;
txt.SelectionStart = Math.Max(0, txt.Text.Length);
txt.SelectionLength = 0;
}
};
}
public override IDisposable Prompt(PromptConfig config)
{
return(this.Present(() =>
{
var dlg = UIAlertController.Create(config.Title ?? String.Empty, config.Message, UIAlertControllerStyle.Alert);
UITextField txt = null;
if (config.IsCancellable)
{
dlg.AddAction(UIAlertAction.Create(config.CancelText, UIAlertActionStyle.Cancel, x =>
config.OnAction?.Invoke(new PromptResult(false, txt.Text.Trim())
)));
}
var btnOk = UIAlertAction.Create(config.OkText, UIAlertActionStyle.Default, x =>
config.OnAction?.Invoke(new PromptResult(true, txt.Text.Trim())
));
dlg.AddAction(btnOk);
dlg.AddTextField(x =>
{
txt = x;
if (config.MaxLength != null)
{
txt.ShouldChangeCharacters = (field, replacePosition, replacement) =>
{
var updatedText = new StringBuilder(field.Text);
updatedText.Remove((int)replacePosition.Location, (int)replacePosition.Length);
updatedText.Insert((int)replacePosition.Location, replacement);
return updatedText.ToString().Length <= config.MaxLength.Value;
};
}
if (config.OnTextChanged != null)
{
txt.Ended += (sender, e) =>
{
var args = new PromptTextChangedArgs {
Value = txt.Text
};
config.OnTextChanged(args);
btnOk.Enabled = args.IsValid;
if (!txt.Text.Equals(args.Value))
{
txt.Text = args.Value;
}
};
}
this.SetInputType(txt, config.InputType);
txt.Placeholder = config.Placeholder ?? String.Empty;
if (config.Text != null)
{
txt.Text = config.Text;
}
});
return dlg;
}));
}
static void ValidatePrompt(UITextField txt, UIAlertAction btn, PromptConfig config)
{
var args = new PromptTextChangedArgs {
Value = txt.Text
};
config.OnTextChanged(args);
btn.Enabled = args.IsValid;
if (!txt.Text.Equals(args.Value))
{
txt.Text = args.Value;
}
}
public override IDisposable Prompt(PromptConfig config)
{
Dispatch(() =>
{
var dialog = new FormsContentDialog()
{
DataContext = config,
Title = config.Title,
// Content will be set
IsPrimaryButtonEnabled = true,
PrimaryButtonText = config.OkText,
IsSecondaryButtonEnabled = config.IsCancellable,
SecondaryButtonText = config.CancelText
};
if (config.InputType == InputType.Password || config.InputType == InputType.NumericPassword)
{
var control = new PasswordPromptControl();
control.PasswordEdit.PasswordChanged += (s, e) =>
{
config.Text = control.PasswordEdit.Password;
if (config.OnTextChanged != null)
{
var args = new PromptTextChangedArgs()
{
Value = control.PasswordEdit.Password
};
config.OnTextChanged(args);
dialog.IsPrimaryButtonEnabled = args.IsValid;
if (control.PasswordEdit.Password != args.Value)
{
control.PasswordEdit.Password = args.Value;
}
}
};
dialog.Content = control;
// First run of text changed
if (config.OnTextChanged != null)
{
var args = new PromptTextChangedArgs()
{
Value = control.PasswordEdit.Password
};
config.OnTextChanged(args);
dialog.IsPrimaryButtonEnabled = args.IsValid;
control.PasswordEdit.Password = args.Value;
}
}
else
{
var control = new DefaultPromptControl();
control.TextEdit.TextChanged += (s, e) =>
{
if (config.OnTextChanged != null)
{
var args = new PromptTextChangedArgs()
{
Value = control.TextEdit.Text
};
config.OnTextChanged(args);
dialog.IsPrimaryButtonEnabled = args.IsValid;
if (control.TextEdit.Text != args.Value)
{
int selStart = control.TextEdit.SelectionStart;
control.TextEdit.Text = args.Value;
control.TextEdit.SelectionStart = selStart;
}
}
};
dialog.Content = control;
// First run of text changed
if (config.OnTextChanged != null)
{
var args = new PromptTextChangedArgs()
{
Value = control.TextEdit.Text
};
config.OnTextChanged(args);
dialog.IsPrimaryButtonEnabled = args.IsValid;
int selStart = control.TextEdit.SelectionStart;
control.TextEdit.Text = args.Value;
control.TextEdit.SelectionStart = selStart;
}
}
dialog.PrimaryButtonClick += (s, e) => { HideContentDialog(); config.OnAction(new PromptResult(true, config.Text)); e.Cancel = true; };
dialog.SecondaryButtonClick += (s, e) => { HideContentDialog(); config.OnAction(new PromptResult(false, config.Text)); e.Cancel = true; };
ShowContentDialog(dialog);
});
return(new DisposableAction(HideContentDialog));
}
public override IDisposable Prompt(PromptConfig config)
{
var positive = new XButton
{
Text = config.OkText
};
var negative = new XButton
{
Text = config.CancelText
};
var txt = new Entry()
{
Placeholder = config.Placeholder ?? String.Empty,
Text = config.Text ?? String.Empty,
};
var layout = new StackLayout
{
Children =
{
txt,
},
Padding = 30
};
var dialog = new Dialog()
{
Title = config.Title ?? String.Empty,
Subtitle = config.Message,
Content = layout,
HorizontalOption = LayoutOptions.Center,
VerticalOption = LayoutOptions.Center,
};
if (config.IsCancellable)
{
dialog.Negative = negative;
}
if (config.OkText != null)
{
positive.Text = config.OkText;
dialog.Positive = positive;
}
this.SetInputType(txt, config.InputType);
if (config.MaxLength != null)
{
txt.TextChanged += (s, e) =>
{
var entry = (Entry)s;
if (entry.Text.Length > config.MaxLength)
{
string entryText = entry.Text;
entryText = entryText.Remove(entryText.Length - 1);
entry.Text = entryText;
}
};
}
if (config.OnTextChanged != null)
{
if (config.InputType == InputType.Password)
{
txt.IsPassword = true;
txt.TextChanged += (sender, e) =>
{
txt.IsPassword = true;
};
}
var args = new PromptTextChangedArgs {
Value = txt.Text
};
config.OnTextChanged(args);
positive.IsEnabled = args.IsValid;
txt.TextChanged += (s, e) =>
{
args.IsValid = true;
args.Value = txt.Text;
config.OnTextChanged(args);
positive.IsEnabled = args.IsValid;
if (!args.Value.Equals(txt.Text))
{
txt.Text = args.Value;
//txt.SelectionStart = Math.Max(0, txt.Text.Length);
//txt.SelectionLength = 0;
}
};
}
dialog.OutsideClicked += (s, e) =>
{
dialog.Hide();
};
positive.Clicked += (s, e) =>
{
dialog.Hide();
config.OnAction?.Invoke(new PromptResult(true, txt.Text.Trim()));
};
negative.Clicked += (s, e) =>
{
dialog.Hide();
config.OnAction?.Invoke(new PromptResult(false, txt.Text));
};
return(Show(dialog));
}