internal void SectionDropped(XmlLayoutAccordionSection section)
{
if (!allowSectionReordering)
{
return;
}
var oldIndex = sections.IndexOf(section);
sections.RemoveAt(oldIndex);
int newIndex = sectionPlaceholder.rectTransform.GetSiblingIndex();
if (newIndex > oldIndex)
{
newIndex--;
}
sections.Insert(newIndex, section);
XmlLayoutTimer.AtEndOfFrame(() => section.transform.SetSiblingIndex(newIndex), this, true);
foreach (var s in sections)
{
s.content.xmlElement.childElements.First().CanvasGroup.blocksRaycasts = true;
}
if (expandSectionAfterReorder)
{
ExpandSection(section);
}
}
internal void SectionHeaderClicked(XmlLayoutAccordionSection section)
{
if (!section.expanded)
{
ExpandSection(section);
}
else
{
if (collapsible)
{
CollapseSection(section);
}
}
}
public void ExpandSection(XmlLayoutAccordionSection section)
{
if (!section.expanded)
{
foreach (var sectionToHide in sections)
{
if (section != sectionToHide)
{
sectionToHide.Collapse();
}
}
section.Expand();
}
}
internal void SectionDragStart(XmlLayoutAccordionSection draggedSection)
{
dragInProgress = true;
sectionBeingDragged = draggedSection;
sectionPlaceholder.layoutElement.preferredHeight = 0;
sectionPlaceholder.gameObject.SetActive(true);
GrowPlaceholder();
foreach (var section in sections)
{
section.content.xmlElement.childElements.First().CanvasGroup.blocksRaycasts = false;
}
sectionBeingDragged.xmlElement.layoutElement.ignoreLayout = true;
}
private void Update()
{
if (!dragInProgress)
{
return;
}
if (sectionBeingDragged == null)
{
return;
}
if (placeHolderAnimationInProgress)
{
return;
}
sectionBeingDragged.xmlElement.rectTransform.SetAsLastSibling();
// if the mouse hasn't moved, don't do anything
if (Mathf.Round(mouseY) == Mathf.Round(Input.mousePosition.y))
{
return;
}
mouseY = Input.mousePosition.y;
Vector2 localPoint;
if (canvas.renderMode == RenderMode.ScreenSpaceOverlay)
{
localPoint = rectTransform.InverseTransformPoint(Input.mousePosition);
}
else
{
RectTransformUtility.ScreenPointToLocalPointInRectangle(rectTransform, Input.mousePosition, canvas.worldCamera ?? Camera.main, out localPoint);
}
XmlLayoutAccordionSection closestSection = null;
float closestDistance = float.MaxValue;
float closestDistanceAbsolute = float.MaxValue;
for (var i = 0; i < sections.Count; i++)
{
if (sections[i] == sectionBeingDragged)
{
continue;
}
var distance = localPoint.y - sections[i].rectTransform.localPosition.y;
if (Mathf.Abs(distance) < closestDistanceAbsolute)
{
closestDistance = distance;
closestDistanceAbsolute = Mathf.Abs(closestDistance);
closestSection = sections[i];
}
}
if (closestSection != null)
{
var index = sections.IndexOf(closestSection);
if (sections.IndexOf(sectionBeingDragged) < index)
{
index--;
}
if (closestDistance < 0)
{
index++;
}
if (placeHolderPosition != index)
{
placeHolderPosition = index;
MovePlaceholderToPosition(index);
}
}
}
public void CollapseSection(XmlLayoutAccordionSection section)
{
section.Collapse();
}