internal virtual void OnChildMeasureInvalidated(VisualElement child, InvalidationTrigger trigger)
{
var container = this as IPageContainer <Page>;
if (container != null)
{
Page page = container.CurrentPage;
if (page != null && page.IsVisible && (!page.IsPlatformEnabled || !page.IsNativeStateConsistent))
{
return;
}
}
else
{
for (var i = 0; i < LogicalChildren.Count; i++)
{
var v = LogicalChildren[i] as VisualElement;
if (v != null && v.IsVisible && (!v.IsPlatformEnabled || !v.IsNativeStateConsistent))
{
return;
}
}
}
_allocatedFlag = false;
InvalidateMeasure(InvalidationTrigger.MeasureChanged);
if (!_allocatedFlag && Width >= 0 && Height >= 0)
{
SizeAllocated(Width, Height);
}
}
internal virtual void OnChildMeasureInvalidated(Element child, InvalidationTrigger trigger)
{
var container = this as IPageContainer <Page>;
if (container != null)
{
Page page = container.CurrentPage;
if (page != null /*&& page.IsVisible && (!page.IsPlatformEnabled || !page.IsNativeStateConsistent)*/)
{
return;
}
}
else
{
}
_allocatedFlag = false;
// InvalidateMeasureInternal(InvalidationTrigger.MeasureChanged);
if (!_allocatedFlag /*&& Width >= 0 && Height >= 0*/)
{
// SizeAllocated(Width, Height);
}
}
internal virtual void OnChildMeasureInvalidated(BaseHandle child, InvalidationTrigger trigger)
{
var container = this as IPageContainer <Page>;
if (container != null)
{
Page page = container.CurrentPage;
if (page != null)
{
return;
}
}
else
{
for (var i = 0; i < LogicalChildren.Count; i++)
{
var v = LogicalChildren[i] as BaseHandle;
if (v != null)
{
return;
}
}
}
}
internal override void InvalidateMeasureInternal(InvalidationTrigger trigger)
{
_layoutInformation = new LayoutInformation();
base.InvalidateMeasureInternal(trigger);
}
protected virtual void OnChildMeasureInvalidated(object sender, EventArgs e)
{
InvalidationTrigger trigger = (e as InvalidationEventArgs)?.Trigger ?? InvalidationTrigger.Undefined;
OnChildMeasureInvalidated((VisualElement)sender, trigger);
}
void IVisualElementController.InvalidateMeasure(InvalidationTrigger trigger)
{
InvalidateMeasureInternal(trigger);
}
internal virtual void InvalidateMeasureInternal(InvalidationTrigger trigger)
{
_measureCache.Clear();
MeasureInvalidated?.Invoke(this, new InvalidationEventArgs(trigger));
}
void IVisualElementController.InvalidateMeasure(InvalidationTrigger trigger)
{
InvalidateMeasureInternal(trigger);
}
internal virtual void InvalidateMeasureInternal(InvalidationTrigger trigger)
{
_measureCache.Clear();
MeasureInvalidated?.Invoke(this, new InvalidationEventArgs(trigger));
}
public void InvalidateMeasureNonVirtual(InvalidationTrigger trigger)
{
InvalidateMeasureInternal(trigger);
}
public InvalidationEventArgs(InvalidationTrigger trigger)
{
Trigger = trigger;
}
internal override void InvalidateMeasureInternal(InvalidationTrigger trigger)
{
base.InvalidateMeasureInternal(trigger);
_columns = null;
_rows = null;
}
internal override void InvalidateMeasureInternal(InvalidationTrigger trigger)
{
IsArrangeValid = false;
base.InvalidateMeasureInternal(trigger);
}
internal virtual void OnChildMeasureInvalidated(VisualElement child, InvalidationTrigger trigger)
{
var container = this as IPageContainer<Page>;
if (container != null)
{
Page page = container.CurrentPage;
if (page != null && page.IsVisible && (!page.IsPlatformEnabled || !page.IsNativeStateConsistent))
return;
}
else
{
for (var i = 0; i < LogicalChildren.Count; i++)
{
var v = LogicalChildren[i] as VisualElement;
if (v != null && v.IsVisible && (!v.IsPlatformEnabled || !v.IsNativeStateConsistent))
return;
}
}
_allocatedFlag = false;
InvalidateMeasureInternal(InvalidationTrigger.MeasureChanged);
if (!_allocatedFlag && Width >= 0 && Height >= 0)
{
SizeAllocated(Width, Height);
}
}
public InvalidationEventArgs(InvalidationTrigger trigger)
{
Trigger = trigger;
}
