public BranchAccessor(Branch branch)
{
if (branch == null)
{
throw new ArgumentNullException(nameof(branch));
}
_branch = branch;
var firstChildBranch = branch.FirstItem as Branch;
if (firstChildBranch != null)
{
_firstBranchAccessor = new BranchAccessor(firstChildBranch);
}
else
{
_firstDockControl = FindDockControl(branch.FirstItem, branch.FirstContentPresenter);
}
var secondChildBranch = branch.SecondItem as Branch;
if (secondChildBranch != null)
{
_secondBranchAccessor = new BranchAccessor(secondChildBranch);
}
else
{
_secondDockControl = FindDockControl(branch.SecondItem, branch.SecondContentPresenter);
}
}
public LayoutAccessor(Layout layout)
{
if (layout == null)
{
throw new ArgumentNullException(nameof(layout));
}
_layout = layout;
var branch = Layout.Content as Branch;
if (branch != null)
{
_branchAccessor = new BranchAccessor(branch);
}
else
{
_dockControl = Layout.Content as DockControl;
}
}
/// <summary>
/// Helper method for <see cref="BranchAccessor.Visit"/> which allows a context to be passed through.
/// </summary>
/// <typeparam name="TContext"></typeparam>
/// <param name="branchAccessor"></param>
/// <param name="context"></param>
/// <param name="childItem"></param>
/// <param name="branchVisitor"></param>
/// <param name="dockControlVisitor"></param>
/// <param name="contentVisitor"></param>
/// <returns></returns>
public static BranchAccessor Visit <TContext>(
this BranchAccessor branchAccessor,
TContext context,
BranchItem childItem,
Action <TContext, BranchAccessor> branchVisitor = null,
Action <TContext, DockControl> dockControlVisitor = null,
Action <TContext, object> contentVisitor = null)
{
if (branchAccessor == null)
{
throw new ArgumentNullException(nameof(branchAccessor));
}
branchAccessor.Visit(
childItem,
WrapVisitor(context, branchVisitor),
WrapVisitor(context, dockControlVisitor),
WrapVisitor(context, contentVisitor)
);
return(branchAccessor);
}
private static void BranchVisitor(LocationReportBuilder locationReportBuilder, BranchAccessor branchAccessor)
{
if (Equals(branchAccessor.FirstDockControl, locationReportBuilder.TargetDockControl))
{
locationReportBuilder.MarkFound(branchAccessor.Branch, false);
}
else if (Equals(branchAccessor.SecondDockControl, locationReportBuilder.TargetDockControl))
{
locationReportBuilder.MarkFound(branchAccessor.Branch, true);
}
else
{
branchAccessor.Visit(BranchItem.First, ba => BranchVisitor(locationReportBuilder, ba));
if (locationReportBuilder.IsFound)
{
return;
}
branchAccessor.Visit(BranchItem.Second, ba => BranchVisitor(locationReportBuilder, ba));
}
}