- moveCursor: function (offset: number): boolean {
- var active = document.activeElement;
- if (offset === 1 && active) {
- active = active.nextElementSibling;
- }
- if (offset === -1 && active) {
- active = active.previousElementSibling;
+ visibleTaskAtOffset(task: Element, offset: number): Element {
+ var cursor: Element | null = task;
+ var valid_cursor = cursor;
+ const increment = offset / Math.abs(offset);
+ while (true) {
+ cursor = increment > 0 ? cursor.nextElementSibling : cursor.previousElementSibling;
+ if (!cursor || !(cursor instanceof HTMLElement)) break;
+ if (cursor.style.display !== "none") {
+ offset -= increment;
+ valid_cursor = cursor;
+ }
+ if (Math.abs(offset) < 0.5) break;