private static ChoiceModel ParseChoiceElement(XmlElement choiceElement)
{
var choiceModel = new ChoiceModel();
WithAttributeDo(choiceElement, "label", label => choiceModel.Label = label);
WithAttributeDo(choiceElement, "name", name => choiceModel.Name = name);
ForEachElementDo(choiceElement, "var", v => ParseVarElement(v, choiceModel.Variables));
return(choiceModel);
}
private SelectorModel ParseSelector(XmlElement selectorElement)
{
var selectorModel = new SelectorModel(this.config);
WithAttributeDo(selectorElement, "label", n => selectorModel.Label = n);
WithAttributeDo(selectorElement, "name", n => selectorModel.Name = n);
WithAttributeDo(selectorElement, "type", n => selectorModel.SelectorType = ParseAsEnum <SelectorType>(n));
WithAttributeDo(selectorElement, "width", n => selectorModel.ControlWidth = StringToLength(n));
WithAttributeDo(selectorElement, "height", n => selectorModel.ControlHeight = StringToLength(n));
WithAttributeDo(selectorElement, "active", n => selectorModel.IsActiveExpr = n);
WithAttributeDo(selectorElement, "hidden", n => selectorModel.IsHidden = bool.Parse(n));
WithAttributeDo(selectorElement, "color", n => selectorModel.Color = ParseColor(n));
WithAttributeDo(selectorElement, "bordercolor", n => selectorModel.BorderColor = ParseColor(n));
// textbox is different from other controls as it can affect only one variable
// and has no choices.
if (selectorModel.SelectorType == SelectorType.TextBox ||
selectorModel.SelectorType == SelectorType.Directory ||
selectorModel.SelectorType == SelectorType.File)
{
var vars = new Dictionary <string, VarModel>();
ParseVarElement(selectorElement.SelectSingleNode("var") as XmlElement, vars);
if (vars.Count > 0)
{
var onlyVar = vars.First().Value;
var onlyChoice = new ChoiceModel();
onlyChoice.Variables.Add(onlyVar.Name, onlyVar);
selectorModel.SelectedChoice = onlyChoice;
}
return(selectorModel);
}
ForEachElementDo(
selectorElement,
"choice",
choiceElement => selectorModel.Choices.Add(ParseChoiceElement(choiceElement)));
// Check whether checkbox selector choices are booleans,
// otherwise switch to listbox.
if (selectorModel.SelectorType == SelectorType.CheckBox)
{
if (selectorModel.Choices.Count > 2)
{
selectorModel.SelectorType = SelectorType.ListBox;
}
else
{
bool hasTrue = false;
bool hasFalse = false;
// Should be exactly true and false, or one or these.
foreach (var v in selectorModel.Choices)
{
bool result;
if (bool.TryParse(v.Name, out result))
{
if (result)
{
if (hasTrue)
{
throw new Exception(
string.Format(
"More than one true choice defined for selector {0}",
selectorModel.Name));
}
hasTrue = true;
}
else
{
if (hasFalse)
{
throw new Exception(
string.Format(
"More than one true choice defined for selector {0}",
selectorModel.Name));
}
hasFalse = true;
}
}
}
if (!hasTrue)
{
selectorModel.Choices.Add(new ChoiceModel {
Name = "true"
});
}
if (!hasFalse)
{
selectorModel.Choices.Add(new ChoiceModel {
Name = "false"
});
}
}
}
// Define undefined variables as empty strings
var allKeys = new List <string>();
// Collect all variable keys
foreach (var val in selectorModel.Choices)
{
allKeys = allKeys.Union(val.Variables.Keys).ToList();
}
// Add empty string variable to each choice where it is missing.
foreach (var choiceModel in selectorModel.Choices)
{
foreach (var key in allKeys)
{
if (!choiceModel.Variables.ContainsKey(key))
{
choiceModel.Variables[key] = new VarModel()
{
Name = key, Value = string.Empty
};
}
}
}
// Set default
WithAttributeDo(
selectorElement,
"default",
n =>
{
if (!string.IsNullOrWhiteSpace(n))
{
selectorModel.SelectedChoice = selectorModel.Choices.FirstOrDefault(o => o.Name == n);
}
});
return(selectorModel);
}