public ShellFlyoutHeaderHandler(NativeComponentRenderer renderer, DummyElement shellFlyoutHeaderDummyControl)
{
Renderer = renderer ?? throw new ArgumentNullException(nameof(renderer));
ShellFlyoutHeaderDummyControl = shellFlyoutHeaderDummyControl ?? throw new ArgumentNullException(nameof(shellFlyoutHeaderDummyControl));
_parentChildManager = new ParentChildManager <XF.Shell, XF.View>(SetShellFlyoutHeader);
}
private void ShowDialogIfPossible(ParentChildManager <XF.NavigableElement, XF.Page> parentChildManager)
{
if (_parentChildManager.Parent != null && _parentChildManager.Child != null)
{
_parentChildManager.Parent.Navigation.PushModalAsync(_parentChildManager.Child);
}
}
public GridCellHandler(NativeComponentRenderer renderer, GridCellPlaceholderElement gridCellPlaceholderElementControl)
{
Renderer = renderer ?? throw new ArgumentNullException(nameof(renderer));
GridCellPlaceholderElementControl = gridCellPlaceholderElementControl ?? throw new ArgumentNullException(nameof(gridCellPlaceholderElementControl));
_parentChildManager = new ParentChildManager <XF.Grid, XF.View>(AddChildViewToParentGrid);
}
public ModalContainerHandler(NativeComponentRenderer renderer, DummyElement modalContainerDummyControl)
{
Renderer = renderer ?? throw new ArgumentNullException(nameof(renderer));
ModalContainerPlaceholderElementControl = modalContainerDummyControl ?? throw new ArgumentNullException(nameof(modalContainerDummyControl));
_parentChildManager = new ParentChildManager <XF.NavigableElement, XF.Page>(ShowDialogIfPossible);
_parentChildManager.ChildChanged += OnParentChildManagerChildChanged;
}
private void SetShellFlyoutHeader(ParentChildManager <XF.Shell, XF.View> parentChildManager)
{
// See comment in ShellHandler..ctor. We can't re-set the FlyoutHeader itself, so we have
// an intermediate ContentView and adjust its contents.
var flyoutHeaderContentView = (XF.ContentView)parentChildManager.Parent.FlyoutHeader;
flyoutHeaderContentView.IsVisible = true;
flyoutHeaderContentView.Content = parentChildManager.Child;
}
private void AddChildViewToParentGrid(ParentChildManager <XF.Grid, XF.View> parentChildManager)
{
parentChildManager.Parent.Children.Add(
view: parentChildManager.Child,
left: (Column ?? 0),
right: (Column ?? 0) + (ColumnSpan ?? 1),
top: (Row ?? 0),
bottom: (Row ?? 0) + (RowSpan ?? 1));
}
