(line, start, dir, byUnit)
| 8684 | // LTR text touch each other. This often requires the cursor offset |
| 8685 | // to move more than one unit, in order to visually move one unit. |
| 8686 | function moveVisually(line, start, dir, byUnit) { |
| 8687 | var bidi = getOrder(line); |
| 8688 | if (!bidi) return moveLogically(line, start, dir, byUnit); |
| 8689 | var pos = getBidiPartAt(bidi, start), part = bidi[pos]; |
| 8690 | var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit); |
| 8691 | |
| 8692 | for (;;) { |
| 8693 | if (target > part.from && target < part.to) return target; |
| 8694 | if (target == part.from || target == part.to) { |
| 8695 | if (getBidiPartAt(bidi, target) == pos) return target; |
| 8696 | part = bidi[pos += dir]; |
| 8697 | return (dir > 0) == part.level % 2 ? part.to : part.from; |
| 8698 | } else { |
| 8699 | part = bidi[pos += dir]; |
| 8700 | if (!part) return null; |
| 8701 | if ((dir > 0) == part.level % 2) |
| 8702 | target = moveInLine(line, part.to, -1, byUnit); |
| 8703 | else |
| 8704 | target = moveInLine(line, part.from, 1, byUnit); |
| 8705 | } |
| 8706 | } |
| 8707 | } |
| 8708 | |
| 8709 | function moveLogically(line, start, dir, byUnit) { |
| 8710 | var target = start + dir; |
no test coverage detected