void BeforeItemAdded(IPanePageViewModel page)
{
if (!history.Contains(page))
{
page.CloseRequested.Subscribe(_ => RemoveAll(page));
}
}
void BeforeItemAdded(IPanePageViewModel page)
{
if (page.CloseRequested != null && !history.Contains(page))
{
RegisterDispose(
page,
page.CloseRequested.Subscribe(_ => RemoveAll(page)));
}
}
public int RemoveAll(IPanePageViewModel page)
{
var count = 0;
while (history.Remove(page))
{
++count;
}
return(count);
}
/// <inheritdoc/>
public void NavigateTo(IPanePageViewModel page)
{
Guard.ArgumentNotNull(page, nameof(page));
history.Insert(index + 1, page);
++Index;
if (index < history.Count - 1)
{
history.RemoveRange(index + 1, history.Count - (index + 1));
}
}
void ItemRemoved(int removedIndex, IPanePageViewModel page)
{
if (removedIndex <= Index)
{
--Index;
}
if (!history.Contains(page))
{
if (Content == page)
{
page.Deactivated();
}
page.Dispose();
}
}
public void RegisterDispose(IPanePageViewModel page, IDisposable dispose)
{
if (pageDispose == null)
{
pageDispose = new Dictionary <IPanePageViewModel, CompositeDisposable>();
}
CompositeDisposable item;
if (!pageDispose.TryGetValue(page, out item))
{
item = new CompositeDisposable();
pageDispose.Add(page, item);
}
item.Add(dispose);
}
void ItemRemoved(int removedIndex, IPanePageViewModel page)
{
if (removedIndex <= Index)
{
--Index;
}
if (!history.Contains(page))
{
CompositeDisposable dispose = null;
if (pageDispose?.TryGetValue(page, out dispose) == true)
{
dispose.Dispose();
pageDispose.Remove(page);
}
}
}
