},
moveCursor: function (offset: number): boolean {
- var active = document.activeElement;
- if (offset === 1 && active) {
- active = active.nextElementSibling;
- }
- if (offset === -1 && active) {
- active = active.previousElementSibling;
+ var initial_cursor = document.activeElement;
+ if (!initial_cursor) return false;
+ var cursor: Element | null = initial_cursor;
+ 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;
}
- if (active && active instanceof HTMLElement) {
- active.focus();
+ if (valid_cursor !== initial_cursor && valid_cursor instanceof HTMLElement) {
+ valid_cursor.focus();
return true;
}
return false;