void LayoutChanged()
{
var w = RectTransform.Width;
var h = RectTransform.Height;
var prevModSplitterPos = _modSplitterPos;
_modSplitterPos = Math.Min(_splitterMax, Math.Max(_splitterMin, _splitterPos));
var splitterMaxCollapseThreshold = 100 - (100 - _splitterMax) / 2;
if (CanCollapse)
{
if (_splitterPos < _splitterMin / 2)
{
_modSplitterPos = 0;
}
if (_splitterPos > splitterMaxCollapseThreshold)
{
_modSplitterPos = 100;
}
}
_paneA.Active = _modSplitterPos >= _splitterMin;
_paneB.Active = _modSplitterPos <= _splitterMax;
bool modSplitterCollapsed = _modSplitterPos <_splitterMin / 2 || _modSplitterPos> splitterMaxCollapseThreshold;
bool prevModSplitterCollapsed = prevModSplitterPos <_splitterMin / 2 || prevModSplitterPos> splitterMaxCollapseThreshold;
if (prevModSplitterCollapsed != modSplitterCollapsed)
{
CollapsedChanged?.Invoke(modSplitterCollapsed);
}
if (_isVertical)
{
var splitterOfs = _splitterWidth / 2 + _modSplitterPos * (w - _splitterWidth) / 100.0f;
_paneA.RectTransform.Size = new Point(splitterOfs - _splitterWidth / 2, h);
_paneA.RectTransform.Padding.TopLeft = new Point(splitterOfs / 2 - _splitterWidth / 4, h / 2);
_paneB.RectTransform.Size = new Point(w - splitterOfs - _splitterWidth / 2, h);
_paneB.RectTransform.Padding.TopLeft = new Point(splitterOfs + _splitterWidth / 2 + (w - splitterOfs - _splitterWidth / 2) / 2, h / 2);
_splittBar.RectTransform.Size = new Point(_splitterWidth, h - 10);
_splittBar.RectTransform.Padding.Top = h / 2;
_splittBar.RectTransform.Padding.Left = splitterOfs;
}
else
{
var splitterOfs = _splitterWidth / 2 + _modSplitterPos * (h - _splitterWidth) / 100.0f;
_paneA.RectTransform.Size = new Point(w, splitterOfs - _splitterWidth / 2);
_paneA.RectTransform.Padding.TopLeft = new Point(w / 2, splitterOfs / 2 - _splitterWidth / 4);
_paneB.RectTransform.Size = new Point(w, h - splitterOfs - _splitterWidth / 2);
_paneB.RectTransform.Padding.TopLeft = new Point(w / 2, splitterOfs + _splitterWidth / 2 + (h - splitterOfs - _splitterWidth / 2) / 2);
_splittBar.RectTransform.Size = new Point(w - 10, _splitterWidth);
_splittBar.RectTransform.Padding.Left = w / 2;
_splittBar.RectTransform.Padding.Top = splitterOfs;
}
}
/// <summary>
/// Event handler for toggling the collapsed state
/// that can be used on the corresponding HTML element.
/// </summary>
/// <param name="args">Click arguments.</param>
/// <returns>A task for the function.</returns>
public async Task ToggleClicked(MouseEventArgs args)
{
Collapsed = !Collapsed;
await CollapsedChanged.InvokeAsync(Collapsed);
}