public void StopTracking(List <VisualElement> elements)
{
// Some panels like the main Toolbar don't have any tracking set up
if (panel.contextType == ContextType.Editor && m_EditorVisualTreeAssetTracker == null)
{
return;
}
VisualTreeAsset currentAsset = null;
ILiveReloadAssetTracker <VisualTreeAsset> tracker = null;
foreach (var ve in elements)
{
if (ve.visualTreeAssetSource != null)
{
if (ve.visualTreeAssetSource != currentAsset)
{
currentAsset = ve.visualTreeAssetSource;
tracker = FindTracker(ve);
}
StopVisualTreeAssetTracking(tracker, ve.visualTreeAssetSource);
}
if (ve.styleSheetList?.Count > 0)
{
foreach (var styleSheet in ve.styleSheetList)
{
m_LiveReloadStyleSheetAssetTracker.StopTrackingAsset(styleSheet);
}
}
}
}
internal void StopVisualTreeAssetTracking(VisualElement visualElementUsingAsset)
{
ILiveReloadAssetTracker <VisualTreeAsset> foundTracker = null;
foreach (var trackerMapEntry in m_TrackerToVisualElementMap)
{
var tracker = trackerMapEntry.Key;
if (!tracker.IsTrackingAsset(visualElementUsingAsset.m_VisualTreeAssetSource))
{
continue;
}
var visualElements = trackerMapEntry.Value;
foreach (var visualElement in visualElements)
{
if (visualElement == visualElementUsingAsset)
{
foundTracker = tracker;
break;
}
}
if (foundTracker != null)
{
visualElements.Remove(visualElementUsingAsset);
break;
}
}
foundTracker?.StopTrackingAsset(visualElementUsingAsset.m_VisualTreeAssetSource);
}
private void StopVisualTreeAssetTracking(ILiveReloadAssetTracker <VisualTreeAsset> tracker, VisualTreeAsset asset)
{
if (tracker == null)
{
return;
}
tracker.StopTrackingAsset(asset);
if (m_AssetToTrackerMap.TryGetValue(asset, out var trackers))
{
trackers.m_Trackers.Remove(tracker);
if (trackers.m_Trackers.Count == 0)
{
m_AssetToTrackerMap.Remove(asset);
}
}
}