/// <summary>
/// Initializes a new instance of the <see cref="PageDelta"/> class.
/// </summary>
/// <param name="original">The original page.</param>
/// <param name="revision">The revised page.</param>
public PageDelta(Page original, Page revision)
{
this.Original = original;
this.Revision = revision;
this.RemovedControls = new List<Control>();
this.DetermineDelta();
}
/// <summary>
/// Determines the correct position in the control tree of <paramref name="targetPage"/>
/// and inserts <paramref name="control"/>.
/// </summary>
/// <param name="control">The control to add.</param>
/// <param name="targetPage">The page to add control to.</param>
/// <param name="targetVariations">The product variations.</param>
/// <param name="nextId">The next available control id to be used in the case of a clash.</param>
private void AddControl(Control control, Page targetPage, ProductVariation targetVariations, int nextId)
{
if (control.ParentId.HasValue && targetVariations.RemovedControls.Contains(control.ParentId.Value))
{
targetVariations.RemovedControls.Add(control.Id);
return;
}
var addedIndex = targetVariations.AddedControls.IndexOf(control.Id);
if (addedIndex != -1)
{
targetPage.Controls.FindRecursive(control.Id).Id = nextId;
targetVariations.AddedControls[addedIndex] = nextId;
}
if (control.Type == ControlType.Group || control.Type == ControlType.Repeater)
{
ContainerControl container = control as ContainerControl;
this.subControls.Add(control.Id, container.Controls);
container.Controls = new ControlList();
}
this.InsertIntoList(control, targetPage, targetVariations.AddedControls);
}
/// <summary>
/// Updates a linked control in <paramref name="targetPage"/> by <paramref name="control"/>.
/// </summary>
/// <param name="control">The control to add.</param>
/// <param name="targetPage">The page to add control to.</param>
/// <param name="targetVariations">The product variations.</param>
private void EditControl(Control control, Page targetPage, ProductVariation targetVariations)
{
if (!targetVariations.UnlinkedControls.Contains(control.Id))
{
Control childControl = targetPage.Controls.FindRecursive(c => c.Id == control.Id);
ControlList parent = childControl.GetParentControlList(targetPage.Controls);
int index = parent.IndexOf(childControl);
control = control.Clone();
if (control.Type == ControlType.Group || control.Type == ControlType.Repeater)
{
ContainerControl newContainerControl = control as ContainerControl;
ContainerControl oldContainerControl = parent[index] as ContainerControl;
newContainerControl.Controls = oldContainerControl.Controls;
}
if (childControl.ParentId != control.ParentId || childControl.Position != control.Position)
{
if (control.ParentId.HasValue && targetVariations.RemovedControls.Contains(control.ParentId.Value))
{
targetVariations.EditedControls.Add(childControl.Id);
return;
}
targetPage.Controls.RecursiveRemove(control.Id);
childControl.ParentId = control.ParentId;
this.InsertIntoList(control, targetPage, targetVariations.AddedControls);
}
else
{
parent[index] = control;
}
}
}
/// <summary>
/// Determines the correct position in the control tree of <paramref name="targetPage"/>
/// and inserts <paramref name="control"/>.
/// </summary>
/// <param name="control">The control to add.</param>
/// <param name="targetPage">The page to add control to.</param>
/// <param name="addedControls">The control ids that have been added to the target.</param>
private void InsertIntoList(Control control, Page targetPage, List<int> addedControls)
{
ControlList sourceList;
if (control.ParentId != null && this.subControls.ContainsKey(control.ParentId.Value))
{
sourceList = this.subControls[control.ParentId.Value];
}
else
{
sourceList = control.GetParentControlList(this.delta.Revision.FormDefinition.Pages.FindByPageId(targetPage.PageId).Controls);
}
ControlList targetList = !control.ParentId.HasValue ? targetPage.Controls : targetPage.Controls.FindRecursive<ContainerControl>(control.ParentId.Value).Controls;
int index = this.DetermineTargetIndex(sourceList, targetList, control, addedControls);
if (index >= targetList.Count)
{
targetList.Add(control);
}
else
{
targetList.Insert(index, control);
}
}
/// <summary>
/// Determines if a page has a summary control.
/// </summary>
/// <param name="page">Target page.</param>
/// <returns><see langword="true"/> if the page has a summary control, otherwise <see langword="false"/>.</returns>
private static bool PageHasSummaryControl(Page page)
{
return page.Controls.Any(c => c.Type == ControlType.Summary);
}