public virtual IElementSelector CreateOwnSelector(string state)
{
if (this.UserSelector != null)
{
return(this.UserSelector);
}
if (this.stateManager == null)
{
return(CreateDefaultSelector(this));
}
IElementSelector result;
if (string.IsNullOrEmpty(state))
{
StateDescriptionNode descr = this.stateManager.GetAvailableStates(this.itemThemeRole);
result = new VisualStateSelector(descr.StateName);
}
else
{
bool verified = this.stateManager.VerifyState(this.itemThemeRole, state);
Debug.Assert(verified, string.Format("State '{1}' on item with theme role '{0}' not valid for the specified StateManager: {2}", this.itemThemeRole, state, this.stateManager));
result = new VisualStateSelector(state);
}
return(result);
}
protected override int GetKey()
{
if (!string.IsNullOrEmpty(this.visualState))
{
return(VisualStateSelector.GetSelectorKey(this.visualState));
}
return(0);
}
public override bool Equals(IElementSelector elementSelector)
{
VisualStateSelector visualStateSelector = elementSelector as VisualStateSelector;
if (visualStateSelector != null)
{
return(visualStateSelector.visualState == this.visualState);
}
return(false);
}
private static IStyleSelector GetClassStyleSelector(String currentToken)
{
var colonIndex = currentToken.IndexOf(':');
if (colonIndex == -1)
{
return(new ClassStyleSelector(currentToken));
}
var className = currentToken.Substring(0, colonIndex);
var classSelector = new ClassStyleSelector(className);
var stateType = GetStateType(currentToken, colonIndex);
var visualStateSelector = new VisualStateSelector(classSelector, stateType);
return(visualStateSelector);
}
private void RegisterItemStateFromVisualStateSelector(VisualStateSelector selector)
{
string[] splittedState = selector.VisualState.Split('.');
Debug.Assert(splittedState != null && splittedState.Length > 0, "Invalid visual state name!");
string themeRole = splittedState[0];
string stateName = this.GetStateFromVisualStateSelector(selector.VisualState);
//This should happen only for the default state.
if (string.IsNullOrEmpty(stateName))
{
return;
}
try
{
this.TryAddItemMetadataState(this, themeRole, stateName);
}
catch (Exception)
{
}
}
private void GetSelectorParts(IMarkupNode cssNode,
out List <IStyleSelector> currentAndSelectors,
out List <Combinator> combinators)
{
currentAndSelectors = new List <IStyleSelector>();
combinators = new List <Combinator>();
var name = cssNode.Name;
if (name == "*")
{
currentAndSelectors.Add(AllStyleSelector.Instance);
return;
}
var tokens = name.Split();
for (var c = 0; c < tokens.Length; c++)
{
var currentToken = tokens[c];
if (currentToken.Length == 0)
{
continue;
}
switch (currentToken[0])
{
case '.':
{
var classSelector = GetClassStyleSelector(currentToken);
currentAndSelectors.Add(classSelector);
break;
}
case '>':
currentAndSelectors.Add(new CombinatorSelector(Combinator.Child));
break;
case '+':
currentAndSelectors.Add(new CombinatorSelector(Combinator.AdjacentSibling));
break;
case '~':
currentAndSelectors.Add(new CombinatorSelector(Combinator.AdjacentSibling));
break;
case '|':
if (currentToken[1] == '|')
{
currentAndSelectors.Add(new CombinatorSelector(Combinator.Column));
}
break;
case ' ':
currentAndSelectors.Add(new CombinatorSelector(Combinator.Descendant));
break;
default:
var colonIndex = currentToken.IndexOf(':');
if (colonIndex > 0)
{
var visualName = currentToken.Substring(0, colonIndex);
var typeSelector = GetVisualTypeSelector(visualName);
if (currentToken.Length > colonIndex + 1 &&
currentToken[colonIndex + 1] == ':')
{
// span::before
var appenderName = currentToken.Substring(colonIndex + 2);
var appendSelector = GetContentAppender(typeSelector, appenderName);
currentAndSelectors.Add(appendSelector);
break;
}
// PSEUDO
// input:checked
var stateType = GetStateType(currentToken, colonIndex);
var visualStateSelector = new VisualStateSelector(typeSelector, stateType);
currentAndSelectors.Add(visualStateSelector);
}
else
{
var visualTypeSelector = GetVisualTypeSelector(currentToken);
currentAndSelectors.Add(visualTypeSelector);
}
break;
}
}
}
