protected override async Task OnParametersSetAsync()
{
previousVisibility = currentVisibility;
if (IsOpen && (currentVisibility == ModalVisibilityState.Closed || currentVisibility == ModalVisibilityState.AnimatingClosed))
{
currentVisibility = ModalVisibilityState.AnimatingOpen;
}
if (!IsOpen && (currentVisibility == ModalVisibilityState.Open || currentVisibility == ModalVisibilityState.AnimatingOpen))
{
currentVisibility = ModalVisibilityState.AnimatingClosed;
// This StateHasChanged call was added because using a custom close button in NavigationTemplate did not cause a state change to occur.
// The result was that the animation class would not get added and the close transition would not show. This is a hack to make it work.
StateHasChanged();
}
Debug.WriteLine($"Was: {previousVisibility} Current:{currentVisibility}");
if (_jsAvailable)
{
if (currentVisibility != previousVisibility)
{
Debug.WriteLine("Clearing animation timer");
_clearExistingAnimationTimer();
if (currentVisibility == ModalVisibilityState.AnimatingOpen)
{
isAnimating = true;
animationRenderStart = true;
_animateTo(ModalVisibilityState.Open);
}
else if (currentVisibility == ModalVisibilityState.AnimatingClosed)
{
isAnimating = true;
_animateTo(ModalVisibilityState.Closed);
}
}
}
await base.OnParametersSetAsync();
}
public Modal()
{
_animationTimer = new Timer();
_clearExistingAnimationTimer = () =>
{
if (_animationTimer.Enabled)
{
_animationTimer.Stop();
_animationTimer.Elapsed -= _handler;
}
};
_animateTo = (animationState) =>
{
_animationTimer.Interval = 200;
_handler = null;
_handler = (s, e) =>
{
InvokeAsync(() =>
{
//Debug.WriteLine("Inside invokeAsync from animateTo timer elapsed");
_animationTimer.Elapsed -= _handler;
_animationTimer.Stop();
previousVisibility = currentVisibility;
currentVisibility = animationState;
_onTransitionComplete();
});
};
_animationTimer.Elapsed += _handler;
_animationTimer.Start();
};
_onTransitionComplete = () =>
{
isAnimating = false;
StateHasChanged();
};
}
