private int GetPageTailContainerOrdinal(bool enforceCurrent)
{
if (ContainerViewList.Count == 0)
{
return(-1);
}
var containerOrdinal = ContainerViewList.Last.ContainerOrdinal;
var endTrack = GridTracksMain.GetGridSpan(Template.ContainerRange).EndTrack;
var endGridExtent = new LogicalMainTrack(endTrack, ContainerViewList.Last).EndGridExtent;
var isClipped = IsTailClippedMain(endGridExtent);
if (PreviousContainerAsPageTail(containerOrdinal, isClipped, enforceCurrent))
{
containerOrdinal--;
endGridExtent -= ContainerTracksCountMain;
isClipped = false;
}
if (enforceCurrent && isClipped)
{
ScrollToMain(endGridExtent - 1, 1, GridPlacement.Tail, false);
}
return(containerOrdinal);
}
private int GetPageHeadContainerOrdinal(bool enforceCurrent)
{
if (ContainerViewList.Count == 0)
{
return(-1);
}
var containerOrdinal = ContainerViewList.First.ContainerOrdinal;
var startTrack = GridTracksMain.GetGridSpan(Template.ContainerRange).StartTrack;
var startGridExtent = new LogicalMainTrack(startTrack, ContainerViewList.First).StartGridExtent;
var isClipped = IsHeadClippedMain(startGridExtent);
if (NextContainerAsPageHeader(containerOrdinal, isClipped, enforceCurrent))
{
containerOrdinal++;
startGridExtent += ContainerTracksCountMain;
isClipped = false;
}
if (enforceCurrent && isClipped)
{
ScrollToMain(startGridExtent, 0, GridPlacement.Head, false);
}
return(containerOrdinal);
}
private LogicalMainTrack GetEndLogicalMainTrack(GridRange gridRange)
{
var gridTrack = GridTracksMain.GetGridSpan(gridRange).EndTrack;
return(GetEndLogicalMainTrack(gridTrack));
}
