.filter((droppable: DroppableDimension) => {
const isWithinDroppable = isWithin(
getSafeClipped(droppable)[axis.start],
getSafeClipped(droppable)[axis.end]
);
return isWithinDroppable(pageBorderBoxCenter[axis.line]);
});
.sort((a: DroppableDimension, b: DroppableDimension) => {
const first: number = getSafeClipped(a)[axis.crossAxisStart];
const second: number = getSafeClipped(b)[axis.crossAxisStart];
if (isMovingForward) {
return first - second;
}
return second - first;
})
return candidates.sort((a: DroppableDimension, b: DroppableDimension): number => {
const first = closest(pageBorderBoxCenter, getCorners(getSafeClipped(a)));
const second = closest(pageBorderBoxCenter, getCorners(getSafeClipped(b)));
// if the distances are not equal - choose the shortest
if (first !== second) {
return first - second;
}
// They both have the same distance -
// choose the one that is first on the main axis
return getSafeClipped(a)[axis.start] - getSafeClipped(b)[axis.start];
})[0];
.filter((droppable: DroppableDimension): boolean => {
const targetClipped: Rect = getSafeClipped(droppable);
if (isMovingForward) {
// is the droppable in front of the source on the cross axis?
return sourceClipped[axis.crossAxisEnd] <=
targetClipped[axis.crossAxisStart];
}
// is the droppable behind the source on the cross axis?
return targetClipped[axis.crossAxisEnd] <=
sourceClipped[axis.crossAxisStart];
})
.filter((droppable: DroppableDimension): boolean => {
const targetClipped: Rect = getSafeClipped(droppable);
const isBetweenDestinationClipped = isWithin(
targetClipped[axis.start],
targetClipped[axis.end]
);
return isBetweenSourceClipped(targetClipped[axis.start]) ||
isBetweenSourceClipped(targetClipped[axis.end]) ||
isBetweenDestinationClipped(sourceClipped[axis.start]) ||
isBetweenDestinationClipped(sourceClipped[axis.end]);
})
return contains.sort((a: DroppableDimension, b: DroppableDimension): number => ( getSafeClipped(a)[axis.start] - getSafeClipped(b)[axis.start] ))[0];
.filter((droppable: DroppableDimension, index: number, array: DroppableDimension[]): boolean => getSafeClipped(droppable)[axis.crossAxisStart] === getSafeClipped(array[0])[axis.crossAxisStart]