public IUpdateUIState CharacterEnteredOrAppendedToTextboxTwo
(ObservableCollection <string> IntegerStrings,
string IntegerTotal)
{
FormulaStrings = IntegerStrings;
var Textbox1Text = FormulaStrings[0];
var Textbox2Text = FormulaStrings[1];
CurrentUIState = GetExceptionState
(Textbox1Text,
Textbox2Text);
if (CurrentUIState != null)
{
//Have Exception:
return(CurrentUIState);
}
CurrentUIState = GetEnabledState
(Textbox1Text,
Textbox2Text,
IntegerTotal);
return(CurrentUIState);
}
public IUpdateUIState TextboxOneValueErased
(string Textbox1Text,
string Textbox2Text)
{
CurrentUIState = TextBoxOneHasValueState;
return(CurrentUIState);
}
private void OnTextBoxTwoTextChanged(string Textbox2Text)
{
if (ClearFlag == false)
{
TextBoxTwoText = Textbox2Text;
}
ResetUserInterface();
IntegerStrings.Clear();
IntegerStrings.Add(TextBoxOneText);
IntegerStrings.Add(TextBoxTwoText);
IntegerTotal = TextBoxTotalText;
CurrentUIState = UIModel.TextBox1And2HaveValuesState(IntegerStrings, IntegerTotal);
StatusTextboxText = CurrentUIState.StatusText;
FormulaTextboxText = CurrentUIState.FormulaText;
TextBox1Exception = CurrentUIState.TextBox1ExceptionState;
TextBox2Exception = CurrentUIState.TextBox2ExceptionState;
TextBox1HasValue = CurrentUIState.TextBox1HasValueState;
TextBox1AndTextbox2HasValue = CurrentUIState.TextBox1AndTextBox2HasValueState;
BothTextBoxesBlankOrClear = CurrentUIState.BothTextBoxesBlankOrClearState;
}
public IUpdateUIState TextBox1And2HaveValuesState
(ObservableCollection <string> IntegerStrings,
string IntegerTotal)
{
CurrentState = UpdateUI.CharacterEnteredOrAppendedToTextboxTwo
(IntegerStrings,
IntegerTotal);
return(CurrentState);
}
private void OnClearButtonClick()
{
ClearFlag = true;
TextBoxOneText = "";
TextBoxTwoText = "";
TextBoxTotalText = "";
ResetUserInterface();
CurrentUIState = UIModel.ClearUI();
BothTextBoxesBlankOrClear = CurrentUIState.BothTextBoxesBlankOrClearState;
ClearFlag = false;
}
private IUpdateUIState GetExceptionState
(string Textbox1Text,
string Textbox2Text)
{
Textbox1ValidationResult = ValidateTextboxText(Textbox1Text);
Textbox2ValidationResult = ValidateTextboxText(Textbox2Text);
if (Textbox1Text != null &&
Textbox1Text.Length > 0 &&
Textbox2Text != null &&
Textbox2Text.Length > 0)
{
if (Textbox1ValidationResult == false &&
Textbox2ValidationResult == false)
{
CurrentUIState = TextBoxOneAndTwoExceptionState;
CurrentUIState.StatusText = ExceptionResult.ExceptionText;
return(CurrentUIState);
}
}
if (Textbox1Text != null &&
Textbox1Text.Length > 0)
{
if (Textbox1ValidationResult == false)
{
CurrentUIState = TextBoxOneExceptionState;
CurrentUIState.StatusText = ExceptionResult.ExceptionText;
return(CurrentUIState);
}
}
if (Textbox2Text != null &&
Textbox2Text.Length > 0)
{
if (Textbox2ValidationResult == false)
{
CurrentUIState = TextBoxTwoExceptionState;
CurrentUIState.StatusText = ExceptionResult.ExceptionText;
return(CurrentUIState);
}
}
return(null);
}
public SubtractTwoViewModel
(IEventAggregator EventAggregator,
UpdateSubtractUIModel UIModel,
IUpdateUIState CurrentUIState,
SubtractTwoModel SubtractIntegers,
IDescription Description,
DescriptionResult DescriptionResult)
{
if (EventAggregator != null)
{
this.EventAggregator = EventAggregator;
}
if (UIModel != null)
{
this.UIModel = UIModel;
}
if (SubtractIntegers != null)
{
this.SubtractIntegers = SubtractIntegers;
}
if (Description != null)
{
this.Description = Description;
}
if (DescriptionResult != null)
{
this.DescriptionResult = DescriptionResult;
}
SetDescriptionText();
SetHeaderValues();
ResetUserInterface();
TAB_LOADED_COMMAND = new DelegateCommand(OnTabLoad);
TEXT_BOX_ONE_TEXT_CHANGED_COMMAND = new DelegateCommand <string>(OnTextBoxOneTextChanged);
TEXT_BOX_TWO_TEXT_CHANGED_COMMAND = new DelegateCommand <string>(OnTextBoxTwoTextChanged);
CLEAR_BUTTON_CLICK_COMMAND = new DelegateCommand(OnClearButtonClick);
CALCULATE_BUTTON_CLICK_COMMAND = new DelegateCommand(OnCalculateButtonClick);
}
private IUpdateUIState GetEnabledState
(string Textbox1Text,
string Textbox2Text,
string TextboxTotalText)
{
if (Textbox1Text != null &&
Textbox1Text.Length <= 0 &&
Textbox2Text != null &&
Textbox2Text.Length <= 0)
{
CurrentUIState = Textbox1And2BlankOrClearState;
return(CurrentUIState);
}
if (Textbox1Text != null &&
Textbox1Text.Length > 0 &&
Textbox2Text != null &&
Textbox2Text.Length > 0)
{
CurrentUIState = TextBoxOneAndTwoHaveValuesState;
}
else
{
CurrentUIState = TextBoxOneHasValueState;
}
CurrentUIState.StatusText = OkStatus.GetStatus();
FormulaText = Formula.GenerateFormula
(FormulaStrings,
TextboxTotalText);
CurrentUIState.FormulaText = FormulaText.Trim();
return(CurrentUIState);
}
public UpdateUserInterface
(IUpdateUIState Textbox1And2BlankOrClear,
[Dependency("TextBoxOneHasValue")] IUpdateUIState TextBoxOneHasValue,
[Dependency("TextBoxOneAndTwoHaveValues")] IUpdateUIState TextBoxOneAndTwoHaveValues,
[Dependency("TextBoxOneException")] IUpdateUIState TextBoxOneException,
[Dependency("TextBoxTwoException")] IUpdateUIState TextBoxTwoException,
[Dependency("TextBoxOneAndTwoException")] IUpdateUIState TextBoxOneAndTwoException,
IValidateInteger Validate32BitInteger,
IntegerValidationResult IntegerValidationResult,
ExceptionResult ExceptionResult,
IStatus OkStatus,
IFormula Formula)
{
if (Textbox1And2BlankOrClear != null)
{
Textbox1And2BlankOrClearState = Textbox1And2BlankOrClear;
}
if (TextBoxOneHasValue != null)
{
TextBoxOneHasValueState = TextBoxOneHasValue;
}
if (TextBoxOneAndTwoHaveValues != null)
{
TextBoxOneAndTwoHaveValuesState = TextBoxOneAndTwoHaveValues;
}
if (TextBoxOneException != null)
{
TextBoxOneExceptionState = TextBoxOneException;
}
if (TextBoxTwoException != null)
{
TextBoxTwoExceptionState = TextBoxTwoException;
}
if (TextBoxOneAndTwoException != null)
{
TextBoxOneAndTwoExceptionState = TextBoxOneAndTwoException;
}
if (Validate32BitInteger != null)
{
this.Validate32BitInteger = Validate32BitInteger;
}
if (IntegerValidationResult != null)
{
this.IntegerValidationResult = IntegerValidationResult;
}
if (ExceptionResult != null)
{
this.ExceptionResult = ExceptionResult;
}
if (OkStatus != null)
{
this.OkStatus = OkStatus;
}
if (Formula != null)
{
this.Formula = Formula;
}
}
public IUpdateUIState ClearButtonClicked()
{
CurrentUIState = Textbox1And2BlankOrClearState;
return(CurrentUIState);
}
public void SetState(IUpdateUIState State)
{
CurrentUIState = State;
}
public IUpdateUIState ClearUI()
{
CurrentState = UpdateUI.ClearButtonClicked();
return(CurrentState);
}
private void OnTabLoad()
{
ResetUserInterface();
CurrentUIState = UIModel.ClearUI();
BothTextBoxesBlankOrClear = CurrentUIState.BothTextBoxesBlankOrClearState;
}
