public static bool FindVariableOrigin(VisualElement currentVisualElement, string variableName, out StyleSheet outStyleSheet, out StyleComplexSelector outSelector)
{
outSelector = null;
outStyleSheet = null;
if (string.IsNullOrEmpty(variableName))
{
return(false);
}
// Traverse the element's parent hierarchy to find best matching selector that define the variable
var extractor = new MatchedRulesExtractor();
var current = currentVisualElement;
while (current != null)
{
extractor.selectedElementRules.Clear();
extractor.selectedElementStylesheets.Clear();
extractor.FindMatchingRules(current);
var matchedRules = extractor.selectedElementRules;
for (var i = matchedRules.Count - 1; i >= 0; --i)
{
var matchRecord = matchedRules.ElementAt(i).matchRecord;
var ruleProperty = matchRecord.sheet.FindProperty(matchRecord.complexSelector.rule, variableName);
if (ruleProperty != null)
{
outSelector = matchRecord.complexSelector;
outStyleSheet = matchRecord.sheet;
break;
}
}
if (outSelector != null)
{
break;
}
current = current.parent;
}
// If the current visual element is a fake elemennt created for the selector being edited and that the selector found is a fake selector then return the effective selector associated to the fake visual element
if (outSelector != null && current == currentVisualElement && StyleSheetToUss.ToUssSelector(outSelector).Contains(BuilderConstants.StyleSelectorElementName))
{
outSelector = currentVisualElement.GetStyleComplexSelector();
}
return(outSelector != null);
}
public static List <string> GetMatchingSelectorsOnElement(VisualElement documentElement)
{
var matchedElementsSelector = new MatchedRulesExtractor();
matchedElementsSelector.FindMatchingRules(documentElement);
if (matchedElementsSelector.selectedElementRules == null || matchedElementsSelector.selectedElementRules.Count <= 0)
{
return(null);
}
var complexSelectors = new List <string>();
foreach (var rule in matchedElementsSelector.selectedElementRules)
{
var complexSelector = rule.matchRecord.complexSelector;
var complexSelectorString = StyleSheetToUss.ToUssSelector(complexSelector);
complexSelectors.Add(complexSelectorString);
}
return(complexSelectors);
}
public BuilderInspectorMatchingSelectors(BuilderInspector inspector)
{
m_Inspector = inspector;
m_MatchedRulesExtractor = new MatchedRulesExtractor();
}
