/// <summary>
/// Set the Detail, hide the menu and make sure, that the correct menu entry is selected.
/// </summary>
/// <param name="page">The new detail.</param>
/// <param name="pageData">The detail data associated with the new page, provide if already known. Will get resolved otherwise.</param>
internal void SetDetail(Page page, MvvmNanoMasterDetailData pageData = null)
{
var oldDetailData = _currentDetailData;
//Resolve the page data if it is not given
if (pageData == null)
{
pageData = MasterDetails.FirstOrDefault(
x => ViewViewModelHelper.ViewNameFromViewModel(x.ViewModelType) == page.GetType().Name);
if (pageData == null)
{
throw new MvvmNanoException($"There is no detail registered for the page ${page.GetType().Name}.");
}
}
_currentDetailData = pageData;
//Set the title if the page does not have one
if (string.IsNullOrEmpty(page.Title))
{
page.Title = pageData.Title;
}
//Show the page if it is not already presented
if (_detail != page)
{
_detail = page;
Detail = new MvvmNanoNavigationPage(page);
IsPresented = false;
}
DetailSet(oldDetailData, pageData, page);
}
protected override void DetailSet(MvvmNanoMasterDetailData lastDetailData, MvvmNanoMasterDetailData newDetailData, Page page)
{
//Highlight the new page
if (DetailListView.SelectedItem == null || //No page was selected
lastDetailData != newDetailData) //A page with a different name is selected
{
DetailListView.SelectedItem = newDetailData;
}
}
protected void AddDetailData <TViewModel>(MvvmNanoMasterDetailData data) where TViewModel : MvvmNanoViewModel
{
data.ViewModelType = typeof(TViewModel);
data.ViewModelType = data.ViewModelType;
MasterDetails.Add(data);
DetailDataAdded <TViewModel>(data);
//Check if this is the first window, show it if that is the case.
if (MasterDetails.Count == 1)
{
SetDetail(data);
}
}
/// <summary>
/// Called when a new detail data item is added. Detail data is already added to <see cref="MasterDetails"/> at this point.
/// </summary>
/// <param name="detailData">The added detail data.</param>
protected virtual void DetailDataAdded <TViewModel>(MvvmNanoMasterDetailData detailData)
{
}
/// <summary>
/// Opens the page a <see cref="MvvmNanoMasterDetailData.ViewModelType"/> is referencing to.
/// </summary>
/// <param name="data"></param>
public void SetDetail(MvvmNanoMasterDetailData data)
{
var page = CreatePage(data.ViewModelType);
SetDetail(page, data);
}
/// <summary>
/// Called when a new detail data is set as detail page.
/// </summary>
/// <param name="lastDetailData">The detail data that was set bevore. Can be null if this is the first time a detail is set.</param>
/// <param name="newDetailData">The new detail that is set.</param>
/// <param name="page">The page represented by the detail data that is shown now.</param>
protected virtual void DetailSet(MvvmNanoMasterDetailData lastDetailData, MvvmNanoMasterDetailData newDetailData, Page page)
{
}
