void CreateHandler(ShowTabContentEventArgs e, HexViewDocumentTabContent content, HexPosition? fileOffset, AddressReference addrRef) {
if (!e.Success)
return;
Debug.Assert(e.Tab.Content == content);
var uiContext = e.Tab.UIContext as HexViewDocumentTabUIContext;
Debug.Assert(uiContext != null);
if (uiContext == null || fileOffset == null)
return;
var start = fileOffset.Value;
var end = HexPosition.Min(start + addrRef.Length, HexPosition.MaxEndPosition);
if (!IsVisible(uiContext.HexView, start, end)) {
uiContext.HexView.Options.SetOptionValue(DefaultHexViewOptions.StartPositionId, uiContext.HexView.Buffer.Span.Start);
uiContext.HexView.Options.SetOptionValue(DefaultHexViewOptions.EndPositionId, uiContext.HexView.Buffer.Span.End);
RedisplayHexLines(uiContext.HexView);
if (!IsVisible(uiContext.HexView, start, end))
return;
}
if (e.HasMovedCaret)
return;
if (!uiContext.HexView.VisualElement.IsLoaded) {
RoutedEventHandler loaded = null;
loaded = (s, e2) => {
uiContext.HexView.VisualElement.Loaded -= loaded;
InitializeHexView(uiContext.HexView, start, end);
};
uiContext.HexView.VisualElement.Loaded += loaded;
}
else
InitializeHexView(uiContext.HexView, start, end);
e.HasMovedCaret = true;
}
void OnShown(object uiState, Action<ShowTabContentEventArgs> onShownHandler, IShowContext showCtx, ShowTabContentResult result) {
if (uiState != null)
RestoreUIState(uiState);
if (onShownHandler != null || showCtx.OnShown != null) {
var e = new ShowTabContentEventArgs(result, this);
onShownHandler?.Invoke(e);
showCtx.OnShown?.Invoke(e);
}
}
