private void Delete()
{
// If the named rule has siblings, move to next named rule.
int index = _parentContext.Children.IndexOf(this);
Debug.Assert(index != -1, "Its parent must contain it."); //NOXLATE
RuleBaseContext nextRule = null;
if (index + 1 < _parentContext.Children.Count) // Try to get next sibling
{
nextRule = _parentContext.Children.ElementAt(index + 1);
}
else if (index - 1 >= 0) // Try to get previous sibling
{
nextRule = _parentContext.Children.ElementAt(index - 1);
}
_parentContext.Children.Remove(this);
int idx = _ruleConfigContext.SearchResult.IndexOf(this);
if (idx != -1)
{
_ruleConfigContext.SearchResult.RemoveAt(idx);
}
_ruleConfigContext.IsDirty = true;
if (nextRule != null)
{
nextRule.IsSelected = true;
}
}
private SortedDictionary <string, RuleBaseContext> GetWorkingSet()
{
SortedDictionary <string, RuleBaseContext> workingSet = new SortedDictionary <string, RuleBaseContext>();
Queue <RuleBaseContext> workingQueue = new Queue <RuleBaseContext>();
workingQueue.Enqueue(RootRulePoint);
while (workingQueue.Count > 0)
{
RuleBaseContext theRuleContext = workingQueue.Dequeue();
string rulePath = theRuleContext.Path;
if (!workingSet.ContainsKey(rulePath))
{
workingSet.Add(rulePath, theRuleContext);
}
else
{
Debug.Assert(false, "There are rule points or named rules having duplicated rule path. This is not allowed. There must be something wrong."); //NOXLATE
}
RulePointContext rulePointContext = theRuleContext as RulePointContext;
if (rulePointContext != null)
{
foreach (var ruleContext in rulePointContext.Children)
{
workingQueue.Enqueue(ruleContext);
}
}
}
return(workingSet);
}
private void SelectRule(RuleBaseContext ruleContext)
{
if (ruleContext != null)
{
if (!ruleContext.IsSelected)
{
ruleContext.IsSelected = true;
}
}
}
/// <summary>
/// Search rules including rule points and named rules, and add searching
/// result to SearchResult property.
/// </summary>
private void SearchRules(Stack <RuleBaseContext> workingBuffer)
{
const int MaxWorkload = 10;
const int MaxSearchResultNumber = 1000;
if (workingBuffer != _workingBuffer)
{
// System has started an another searching work by a new keyword.
return;
}
int count = 0;
while (workingBuffer.Count > 0 && count < MaxWorkload)
{
RuleBaseContext theContext = workingBuffer.Pop();
if (String.IsNullOrEmpty(SearchKeyword))
{
_searchResult.Add(theContext);
}
else
{
// Call ToUpper() for search in case-insensitive way.
if (theContext.DisplayName.ToUpper().Contains(SearchKeyword.ToUpper()))
{
_searchResult.Add(theContext);
}
}
theContext.UpdateDisplayTexts();
// Add children into working queue if it has.
RulePointContext rulePoint = theContext as RulePointContext;
if (rulePoint != null)
{
foreach (var child in rulePoint.Children.Reverse()) // first child, first serve
{
workingBuffer.Push(child);
}
}
++count;
}
if (_workingBuffer.Count > 0 && _searchResult.Count < MaxSearchResultNumber)
{
Dispatcher.CurrentDispatcher.BeginInvoke(
new Action <Stack <RuleBaseContext> >(SearchRules),
DispatcherPriority.Background,
workingBuffer);
}
}
private void RuleConfigContext_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
RuleConfigContext context = sender as RuleConfigContext;
Debug.Assert(context != null);
if (e.PropertyName == "EditingRule") // NOXLATE
{
RuleBaseContext editingRule = context.EditingRule;
if (editingRule == null)
{
DetachDesigner();
if (context.SelectedRule != null && context.SelectedRule is RulePointContext)
{
RulePointContext rpc = context.SelectedRule as RulePointContext;
mDesignerViewContent.Content = rpc.CreateContentOperation;
}
else
{
mDesignerViewContent.Content = "TODO: show help doc here."; // NOXLATE
}
}
else
{
RuleAppExtension.RuleDesignerManagerInst.UpdateDesignerAttributes();
_workflowDesigner = new WorkflowDesigner();
_workflowDesigner.Text = context.EditingRule.Text;
_workflowDesigner.Load();
RuleEditingContext editingContext = context.EditingRule.GetEditingContext();
ServiceManager editingContextServices = _workflowDesigner.Context.Services;
editingContextServices.Publish <RuleEditingContextService>(new RuleEditingContextService(editingContext));
editingContextServices.Publish <ActivityTranslator>(RuleAppExtension.ActivityTranslatorInst);
editingContextServices.Publish <ActivityFactory>(RuleAppExtension.ActivityFactoryInst);
_workflowDesigner.ModelChanged += new EventHandler(WorkflowDesigner_ModelChanged);
if (_ruleDesigner == null)
{
_ruleDesigner = new InternalDesigner();
}
_ruleDesigner.SetDesigner(_workflowDesigner);
mDesignerViewContent.Content = _ruleDesigner;
//mRulesTreeView.Focus();
}
}
}
/// <summary>
/// Get RuleBaseContext instance by given path.
/// </summary>
/// <param name="path">The path of rule.</param>
/// <returns>RuleBaseContext instance</returns>
public RuleBaseContext GetRuleContext(string path)
{
if (String.IsNullOrEmpty(path))
{
throw new ArgumentNullException("path"); // NOXLATE
}
RuleBaseContext iter = RootRulePoint;
string[] pathItems = RulePathHelper.GetRulePathComponents(path);
foreach (string component in pathItems)
{
RulePointContext rulePoint = iter as RulePointContext;
if (rulePoint == null)
{
return(null);
}
iter = rulePoint.Children.FirstOrDefault((r) => (r.Name == component)) as RuleBaseContext;
}
return(iter);
}