private void NavView_ItemInvoked(Microsoft.UI.Xaml.Controls.NavigationView sender, Microsoft.UI.Xaml.Controls.NavigationViewItemInvokedEventArgs args)
{
//// Temp Workaround for WinUI Bug https://github.com/microsoft/microsoft-ui-xaml/issues/2520
var invokedItem = args.InvokedItem;
if (invokedItem is FrameworkElement fe && fe.DataContext is SampleCategory cat2)
{
invokedItem = cat2;
}
//// End Workaround - args.InvokedItem
// UNO TODO
// force materialization
FindName("SamplePickerGrid");
if (invokedItem is SampleCategory category)
{
if (SamplePickerGrid.Visibility != Visibility.Collapsed && _selectedCategory == category)
{
// The NavView fires this event twice when the current selected item is clicked
// This makes sure the event get's processed correctly
var nop = Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => HideSamplePicker());
}
else
{
_selectedCategory = category;
ShowSamplePicker(category.Samples, true);
// Then Focus on Picker
dispatcherQueue.EnqueueAsync(() => SamplePickerGridView.Focus(FocusState.Keyboard));
}
}
}
private void SearchBox_KeyDown(object sender, Windows.UI.Xaml.Input.KeyRoutedEventArgs e)
{
if (e.Key == Windows.System.VirtualKey.Down && SamplePickerGrid.Visibility == Windows.UI.Xaml.Visibility.Visible)
{
// If we try and navigate down out of the textbox (and there's search results), go to the search results.
DispatcherHelper.ExecuteOnUIThreadAsync(() => SamplePickerGridView.Focus(FocusState.Keyboard));
}
}
private void SamplePickerGridView_Loaded(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
SamplePickerGrid.RegisterPropertyChangedCallback(UIElement.VisibilityProperty, (s, args) =>
{
if (s is UIElement samplePicker && samplePicker.Visibility == Visibility.Visible)
{
DispatcherHelper.ExecuteOnUIThreadAsync(() => SamplePickerGridView.Focus(FocusState.Keyboard));
}
});
private void ContainerItem_Loaded(object sender, RoutedEventArgs e)
{
var itemsPanel = (ItemsWrapGrid)SamplePickerGridView.ItemsPanelRoot;
var itemContainer = (GridViewItem)sender;
itemContainer.Loaded -= this.ContainerItem_Loaded;
var button = itemContainer.FindDescendant <Button>();
if (button != null)
{
button.Click -= MoreInfoClicked;
button.LostFocus -= MoreInfoLostFocus;
button.Click += MoreInfoClicked;
button.LostFocus += MoreInfoLostFocus;
}
var itemIndex = SamplePickerGridView.IndexFromContainer(itemContainer);
var referenceIndex = itemsPanel.FirstVisibleIndex;
if (SamplePickerGridView.SelectedIndex >= 0)
{
referenceIndex = SamplePickerGridView.SelectedIndex;
}
var relativeIndex = Math.Abs(itemIndex - referenceIndex);
if (itemContainer.Content != CurrentSample && itemIndex >= 0 && itemIndex >= itemsPanel.FirstVisibleIndex && itemIndex <= itemsPanel.LastVisibleIndex)
{
var staggerDelay = TimeSpan.FromMilliseconds(relativeIndex * 30);
var animationCollection = new AnimationCollection()
{
new OpacityAnimation()
{
From = 0, To = 1, Duration = TimeSpan.FromMilliseconds(400), Delay = staggerDelay, SetInitialValueBeforeDelay = true
},
new ScaleAnimation()
{
From = "0.9", To = "1", Duration = TimeSpan.FromMilliseconds(400), Delay = staggerDelay
}
};
VisualExtensions.SetNormalizedCenterPoint(itemContainer, "0.5");
animationCollection.StartAnimation(itemContainer);
}
}
private void HideMoreInfo()
{
if (MoreInfoImage != null && MoreInfoContent.DataContext != null)
{
ConnectedAnimationService.GetForCurrentView().PrepareToAnimate("sample_icon", MoreInfoImage);
}
MoreInfoCanvas.Visibility = Visibility.Collapsed;
if (MoreInfoImage != null && MoreInfoContent.DataContext != null)
{
var animation = ConnectedAnimationService.GetForCurrentView().GetAnimation("sample_icon");
animation.Configuration = new DirectConnectedAnimationConfiguration();
_ = SamplePickerGridView.TryStartConnectedAnimationAsync(animation, MoreInfoContent.DataContext, "SampleIcon");
}
MoreInfoContent.DataContext = null;
}
private void NavView_ItemInvoked(Microsoft.UI.Xaml.Controls.NavigationView sender, Microsoft.UI.Xaml.Controls.NavigationViewItemInvokedEventArgs args)
{
if (args.InvokedItem is SampleCategory category)
{
if (SamplePickerGrid.Visibility != Visibility.Collapsed && _selectedCategory == category)
{
// The NavView fires this event twice when the current selected item is clicked
// This makes sure the event get's processed correctly
var nop = Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => HideSamplePicker());
}
else
{
_selectedCategory = category;
ShowSamplePicker(category.Samples, true);
// Then Focus on Picker
dispatcherQueue.EnqueueAsync(() => SamplePickerGridView.Focus(FocusState.Keyboard));
}
}
}
private void ContainerItem_Loaded(object sender, RoutedEventArgs e)
{
var itemsPanel = (ItemsWrapGrid)SamplePickerGridView.ItemsPanelRoot;
var itemContainer = (GridViewItem)sender;
itemContainer.Loaded -= this.ContainerItem_Loaded;
var button = itemContainer.FindDescendant <Button>();
if (button != null)
{
button.Click -= MoreInfoClicked;
button.LostFocus -= MoreInfoLostFocus;
button.Click += MoreInfoClicked;
button.LostFocus += MoreInfoLostFocus;
}
var itemIndex = SamplePickerGridView.IndexFromContainer(itemContainer);
var referenceIndex = itemsPanel.FirstVisibleIndex;
if (SamplePickerGridView.SelectedIndex >= 0)
{
referenceIndex = SamplePickerGridView.SelectedIndex;
}
var relativeIndex = Math.Abs(itemIndex - referenceIndex);
if (itemContainer.Content != CurrentSample && itemIndex >= 0 && itemIndex >= itemsPanel.FirstVisibleIndex && itemIndex <= itemsPanel.LastVisibleIndex)
{
var staggerDelay = TimeSpan.FromMilliseconds(relativeIndex * 30);
VisualExtensions.SetNormalizedCenterPoint(itemContainer, "0.5");
AnimationBuilder.Create()
.Opacity(from: 0, to: 1, delay: staggerDelay)
.Scale(from: 0.9, to: 1, delay: staggerDelay)
.Start(itemContainer);
}
}
private async void UpdateSearchSuggestions(bool focus = false)
{
if (string.IsNullOrWhiteSpace(SearchBox.Text))
{
HideSamplePicker();
return;
}
var samples = (await Samples.FindSamplesByName(SearchBox.Text)).OrderBy(s => s.Name).ToArray();
if (samples.Count() > 0)
{
ShowSamplePicker(samples);
if (focus)
{
SamplePickerGridView.Focus(FocusState.Keyboard);
}
}
else
{
HideSamplePicker();
}
}
private void NavView_ItemInvoked(Microsoft.UI.Xaml.Controls.NavigationView sender, Microsoft.UI.Xaml.Controls.NavigationViewItemInvokedEventArgs args)
{
//// Temp Workaround for WinUI Bug https://github.com/microsoft/microsoft-ui-xaml/issues/2520
var invokedItem = args.InvokedItem;
if (invokedItem is FrameworkElement fe && fe.DataContext is SampleCategory cat2)
{
invokedItem = cat2;
}
//// End Workaround - args.InvokedItem
if (invokedItem is SampleCategory category)
{
if (SamplePickerGrid.Visibility != Visibility.Collapsed && _selectedCategory == category)
{
// The NavView fires this event twice when the current selected item is clicked
// This makes sure the event get's processed correctly
var nop = Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => HideSamplePicker());
}
else
{
_selectedCategory = category;
ShowSamplePicker(category.Samples, true);
// Then Focus on Picker
DispatcherHelper.ExecuteOnUIThreadAsync(() => SamplePickerGridView.Focus(FocusState.Keyboard));
}
}
else if (args.IsSettingsInvoked)
{
HideSamplePicker();
if (NavigationFrame.CurrentSourcePageType != typeof(About))
{
NavigateToSample(null);
}
}
}
