public override void FromXml(XmlElement xmlElement)
{
FieldDropdown dropdown = mBlock.GetField("MENU") as FieldDropdown;
if (dropdown == null)
{
throw new Exception("FieldDropDown \"MENU\" not found.");
}
if (xmlElement.HasAttribute("options"))
{
string optionText = xmlElement.GetAttribute("options");
string[] options = optionText.Split(new[] { ',', ';' }, StringSplitOptions.RemoveEmptyEntries);
if (options.Length % 2 != 0)
{
throw new Exception(string.Format("Xml serialization for mutation {0} is damaged", MutatorId));
}
FieldDropdownMenu[] menu = new FieldDropdownMenu[options.Length / 2];
for (int i = 0; i < menu.Length; i++)
{
menu[i].Text = options[i * 2];
menu[i].Value = options[i * 2 + 1];
}
dropdown.SetOptions(menu);
}
}
/// <summary>
/// Factor out common words in statically defined options. Create prefix and/or suffix labels.
/// </summary>
private void TrimOptions()
{
if (mMenuOptions == null)
{
return;
}
this.PrefixField = null;
this.SuffixField = null;
for (int i = 0; i < mMenuOptions.Length; i++)
{
mMenuOptions[i].Text = Utils.ReplaceMessageReferences(mMenuOptions[i].Text);
}
if (mMenuOptions.Length < 2)
{
return;
}
string[] strs = new string[mMenuOptions.Length];
for (int i = 0; i < strs.Length; i++)
{
strs[i] = mMenuOptions[i].Text;
}
int shortest = Utils.ShortestStringLength(strs);
int prefixLength = Utils.CommonWordPrefix(strs);
int suffixLength = Utils.CommonWordSuffix(strs);
if (prefixLength == 0 && suffixLength == 0)
{
return;
}
if (shortest <= prefixLength + suffixLength)
{
return;// One or more strings will entirely vanish if we proceed. Abort.
}
if (prefixLength > 0)
{
this.PrefixField = new FieldLabel("Prefix_" + this.Name, strs[0].Substring(0, prefixLength - 1));
}
if (suffixLength > 0)
{
this.SuffixField = new FieldLabel("Prefix_" + this.Name, strs[0].Substring(strs[0].Length - suffixLength + 1));
}
// Remove the prefix and suffix from the options.
for (int i = 0; i < mMenuOptions.Length; i++)
{
var text = mMenuOptions[i].Text;
var value = mMenuOptions[i].Value;
mMenuOptions[i] = new FieldDropdownMenu()
{
Text = text.Substring(prefixLength, text.Length - prefixLength - suffixLength),
Value = value,
};
}
}
/// <summary>
/// init the dropdown menu options
/// </summary>
/// <param name="menu">An array of options for a dropdown list</param>
public void SetOptions(JArray menu)
{
if (menu == null || !menu.IsArray())
{
return;
}
mMenuOptions = new FieldDropdownMenu[menu.Count];
for (int i = 0; i < mMenuOptions.Length; i++)
{
mMenuOptions[i] = new FieldDropdownMenu()
{
Text = menu[i][0].ToString(),
Value = menu[i][1].ToString()
};
}
TrimOptions();
this.SetValue(mMenuOptions[0].Value);
}
/// <summary>
/// init the dropdown menu options
/// </summary>
/// <param name="menu">An array of options for a dropdown list</param>
public void SetOptions(string[,] menu)
{
if (menu == null || menu.GetLength(1) != 2)
{
return;
}
mMenuOptions = new FieldDropdownMenu[menu.GetLength(0)];
for (int i = 0; i < mMenuOptions.Length; i++)
{
mMenuOptions[i] = new FieldDropdownMenu()
{
Text = menu[i, 0],
Value = menu[i, 1]
};
}
TrimOptions();
this.SetValue(mMenuOptions[0].Value);
}
