private async void ScrollViewer_ViewChanged(object sender, ScrollViewerViewChangedEventArgs e)
{
if (e.IsIntermediate)
{
return;
}
// Use width instead of height in vertical mode
if (Data.UseVerticalReader)
{
if (ScrollViewer.CurrentAnchor is ReaderImage image)
{
var index = ReaderVertical.GetElementIndex(ScrollViewer.CurrentAnchor);
Data.ReaderIndex = index;
var width = (int)Math.Round(ScrollViewer.ExtentWidth);
await image.ResizeWidth(width);
(ReaderVertical.TryGetElement(index + 1) as ReaderImage)?.ResizeWidth(width);
(ReaderVertical.TryGetElement(index + 2) as ReaderImage)?.ResizeWidth(width);
}
}
else
{
await ReaderImage.ResizeHeight((int)Math.Round(ScrollViewer.ExtentHeight));
}
}
private async Task ShowReader(int page = 0)
{
if (Data.ShowReader)
{
var readerSet = Data.ArchiveImagesReader.FirstOrDefault(s => s.Page >= page);
if (readerSet == null)
{
return;
}
var index = Data.ArchiveImagesReader.IndexOf(readerSet);
Data.ReaderIndex = index;
if (Data.UseVerticalReader)
{
await Task.Delay(100);
var element = ReaderVertical.GetOrCreateElement(index);
element.UpdateLayout();
element.StartBringIntoView(new BringIntoViewOptions {
AnimationDesired = false, VerticalAlignmentRatio = 0f
});
}
else
{
await ChangePage();
}
if (Service.Platform.AnimationsEnabled)
{
await FadeIn.StartAsync(ScrollViewer);
}
else
{
ScrollViewer.SetVisualOpacity(1);
}
FocusReader();
}
else
{
if (Service.Platform.AnimationsEnabled)
{
await ImagesGrid.FadeInAsync();
}
else
{
ImagesGrid.SetVisualOpacity(1);
}
}
}
private async void OpenReader(int page, object item = null)
{
if (_transition)
{
return;
}
_transition = true;
var readerSet = Data.ArchiveImagesReader.FirstOrDefault(s => s.Page >= page);
if (readerSet == null)
{
return;
}
var index = Data.ArchiveImagesReader.IndexOf(readerSet);
if (Service.Platform.AnimationsEnabled && item != null && !Data.UseVerticalReader)
{
var image = ImagesGrid.ContainerFromItem(item).FindDescendant("Thumbnail");
if (!(image.ActualWidth == 0 || image.ActualHeight == 0))
{
var anim = ConnectedAnimationService.GetForCurrentView().PrepareToAnimate(GetOpenTarget(readerSet, page), image);
anim.Configuration = new BasicConnectedAnimationConfiguration();
}
}
Data.ShowReader = true;
Data.ReaderIndex = index;
if (Data.UseVerticalReader)
{
await Task.Delay(100);
var element = ReaderVertical.GetOrCreateElement(index);
element.UpdateLayout();
element.StartBringIntoView(new BringIntoViewOptions {
AnimationDesired = false, VerticalAlignmentRatio = 0f
});
}
else
{
await ChangePage();
}
if (Data.Archive.isnew)
{
_wasNew = true;
}
if (Service.Platform.AnimationsEnabled)
{
FadeIn.Start(ReaderBackground);
await FadeIn.StartAsync(ScrollViewer);
}
else
{
ReaderBackground.SetVisualOpacity(1);
ScrollViewer.SetVisualOpacity(1);
}
_focus = true;
FocusReader();
_transition = false;
}
