public virtual void HandleInitView(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
view.TranslationX = 0;
view.IsVisible = true;
}
}
public virtual void InitView(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
view.TranslationX = Math.Sign((int)panItemPosition) * cardsView.Width;
view.IsVisible = false;
}
}
public virtual Task HandlePanApply(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
view.Scale = 1;
}
return(Task.FromResult(true));
}
public virtual void HandleAutoNavigate(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
view.IsVisible = true;
new Animation(v => view.TranslationX = v, view.TranslationX, 0)
.Commit(view, nameof(HandleAutoNavigate), 16, AnimationLength, AnimEasing);
}
}
public virtual async Task HandlePanApply(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
await view.FadeTo(0, ApplyAnimationLength, ApplyEasing);
view.IsVisible = false;
}
}
public virtual void AutoNavigate(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
view.IsVisible = true;
new Animation(v => view.Scale = v, view.Scale, 1)
.Commit(view, nameof(AutoNavigate), 16, AutoNavigateAnimationLength, AutoNavigateEasing);
}
}
public virtual void InitView(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
view.TranslationX = 0;
view.Rotation = 0;
view.TranslationY = 0;
view.Opacity = 1;
view.IsVisible = false;
view.Scale = InitialScale;
}
}
public virtual Task HandlePanReset(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
var tcs = new TaskCompletionSource <bool>();
var animLength = (uint)(ResetAnimationLength * (view.Scale - InitialScale) / (1 - InitialScale));
new Animation(v => view.Scale = v, view.Scale, InitialScale)
.Commit(view, nameof(HandlePanReset), 16, animLength, ResetEasing, (v, t) => tcs.SetResult(true));
return(tcs.Task);
}
return(Task.FromResult(true));
}
public virtual void AutoNavigate(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
cardsView.AutoNavigatingStarted(view);
new Animation(v => HandleAutoAnimatingPosChanged(view, cardsView, v, panItemPosition), 0, cardsView.MoveDistance)
.Commit(view, nameof(AutoNavigate), 16, AutoNavigateAnimationLength, AutoNavigateEasing, async(v, t) =>
{
await HandlePanApply(view, cardsView, panItemPosition);
cardsView.AutoNavigatingEnded(view);
});
}
}
public virtual Task HandlePanApply(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
var tcs = new TaskCompletionSource <bool>();
var animTimePercent = 1 - (cardsView.Width - Abs(view.TranslationX)) / cardsView.Width;
var animLength = (uint)(AnimationLength * animTimePercent);
new Animation(v => view.TranslationX = v, view.TranslationX, 0)
.Commit(view, nameof(HandlePanApply), 16, animLength, AnimEasing, (v, t) => tcs.SetResult(true));
return(tcs.Task);
}
return(Task.FromResult(true));
}
public virtual Task HandlePanReset(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
var tcs = new TaskCompletionSource <bool>();
var animTimePercent = (cardsView.Width - Math.Abs(view.TranslationX)) / cardsView.Width;
var animLength = (uint)(AnimationLength * animTimePercent);
new Animation(v => view.TranslationX = v, view.TranslationX, Math.Sign((int)panItemPosition) * cardsView.Width)
.Commit(view, nameof(HandlePanReset), 16, animLength, finished: (v, t) => tcs.SetResult(true));
return(tcs.Task);
}
return(Task.FromResult(true));
}
public virtual void AutoNavigate(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
if (view != null)
{
var destinationPos = panItemPosition == PanItemPosition.Prev
? cardsView.Width
: -cardsView.Width;
cardsView.AutoNavigatingStarted(view);
new Animation(v => view.TranslationX = v, 0, destinationPos)
.Commit(view, nameof(AutoNavigate), 16, AnimationLength, AnimEasing, (v, t) =>
{
cardsView.AutoNavigatingEnded(view);
});
}
}
public virtual Task HandlePanReset(View view, CardsView cardsView, PanItemPosition panItemPosition)
{
var tcs = new TaskCompletionSource <bool>();
if (!CheckIsInitialPosition(view))
{
var animLength = (uint)(ResetAnimationLength * Math.Min(Math.Abs(view.TranslationX / cardsView.MoveDistance), 1.0));
new Animation {
{ 0, 1, new Animation(v => view.TranslationX = v, view.TranslationX, 0) },
{ 0, 1, new Animation(v => view.TranslationY = v, view.TranslationY, 0) },
{ 0, 1, new Animation(v => view.Rotation = v, view.Rotation, 0) }
}.Commit(view, nameof(HandlePanReset), 16, animLength, ResetEasing, (v, c) => SetInitialResult(view, tcs));
}
else
{
SetInitialResult(view, tcs);
}
return(tcs.Task);
}
private void HandleAutoAnimatingPosChanged(View view, CardsView cardsView, double xPos, PanItemPosition panItemPosition)
{
if (panItemPosition == PanItemPosition.Next)
{
xPos = -xPos;
}
view.TranslationX = xPos;
view.TranslationY = Math.Abs(xPos) / 10;
view.Rotation = 0.3 * Math.Min(xPos / cardsView.Width, 1) * Rad;
}
public virtual void HandlePanChanged(View view, CardsView cardsView, double xPos, PanItemPosition panItemPosition)
{
var value = Math.Sign((int)panItemPosition) * cardsView.Width + xPos;
if (Math.Abs(value) > cardsView.Width || (panItemPosition == PanItemPosition.Prev && value > 0) || (panItemPosition == PanItemPosition.Next && value < 0))
{
return;
}
view.TranslationX = value;
}
public virtual void HandlePanChanged(View view, CardsView cardsView, double xPos, PanItemPosition panItemPosition)
{
if (Abs(xPos) > cardsView.Width || (panItemPosition == PanItemPosition.Prev && xPos < 0) || (panItemPosition == PanItemPosition.Next && xPos > 0))
{
return;
}
if (panItemPosition == PanItemPosition.Null)
{
xPos = Sign(xPos) * Min(Abs(xPos / 4), NoItemMaxPanDistance);
}
view.TranslationX = xPos;
}
public virtual void HandlePanChanged(View view, CardsView cardsView, double xPos, PanItemPosition panItemPosition)
{
var calcScale = InitialScale + Math.Abs((xPos / cardsView.MoveDistance) * (1 - InitialScale));
view.Scale = Math.Min(calcScale, 1);
}
public virtual void HandlePanChanged(View view, CardsView cardsView, double xPos, PanItemPosition panItemPosition)
{
var multiplier = 1;
if (panItemPosition == PanItemPosition.Null)
{
xPos = Sign(xPos) * Min(Abs(xPos / 4), NoItemMaxPanDistance);
multiplier = -multiplier;
}
view.TranslationX = xPos;
view.TranslationY = multiplier * Abs(xPos) / 10;
view.Rotation = multiplier * 0.3 * Rad * (xPos / cardsView.Width);
}
public virtual void InitView(View view, CardsView cardsView, PanItemPosition panItemPosition) => ResetInitialState(view);
public virtual void HandlePanChanged(View view, CardsView cardsView, double xPos, PanItemPosition panItemPosition)
{
if (panItemPosition == PanItemPosition.Null)
{
return;
}
var calcScale = InitialScale + Abs((xPos / cardsView.MoveDistance) * (1 - InitialScale));
view.Scale = Min(calcScale, 1);
}
public virtual void HandlePanChanged(View view, CardsView cardsView, double xPos, PanItemPosition panItemPosition)
{
if (Math.Abs(xPos) > cardsView.Width || (panItemPosition == PanItemPosition.Prev && xPos < 0) || (panItemPosition == PanItemPosition.Next && xPos > 0))
{
return;
}
view.TranslationX = xPos;
}
public virtual void HandlePanChanged(View view, CardsView cardsView, double xPos, PanItemPosition panItemPosition)
{
view.TranslationX = xPos;
view.TranslationY = Math.Abs(xPos) / 10;
view.Rotation = 0.3 * Math.Min(xPos / cardsView.Width, 1) * Rad;
}
