in app/addons/components/components/ace-worker-mango.js [687:709]
function $getTransformedPoint(delta, point, moveIfEqual) {
var deltaIsInsert = delta.action == "insert";
var deltaRowShift = (deltaIsInsert ? 1 : -1) * (delta.end.row - delta.start.row);
var deltaColShift = (deltaIsInsert ? 1 : -1) * (delta.end.column - delta.start.column);
var deltaStart = delta.start;
var deltaEnd = deltaIsInsert ? deltaStart : delta.end; // Collapse insert range.
if ($pointsInOrder(point, deltaStart, moveIfEqual)) {
return {
row: point.row,
column: point.column
};
}
if ($pointsInOrder(deltaEnd, point, !moveIfEqual)) {
return {
row: point.row + deltaRowShift,
column: point.column + (point.row == deltaEnd.row ? deltaColShift : 0)
};
}
return {
row: deltaStart.row,
column: deltaStart.column
};
}