Skip to main content

Module: core/updateSelections/getOffsetsForDeleteOrReplace

Functions​

getOffsetsForDeleteOrReplace​

▸ getOffsetsForDeleteOrReplace(changeEventInfo, rangeInfo): RangeOffsets

Gets updated offsets for the range rangeInfo after the change described by changeEventInfo. This function will only be called if the following hold:

  • the change is a delete or replace event, ie a change event for which the original range is nonempty, and
  • the change's original range overlaps with or is directly adjacent to the range to be updated.

There are many ways one might handle replaces and deletes. We opt for a relatively simple approach. We attempt to keep both the start and end offsets as close as possible to what they were prior to the change. We handle start and end offsets independently. For each edge (start or end), we move it to the left only if it was contained in the original range, and it will now be to the right of the new range. We just clamp it so that it will match the end of the new change range in that case.

Parameters​

NameTypeDescription
changeEventInfoChangeEventInfoInformation about the change that occurred
rangeInfoFullRangeInfoThe range to compute new offsets for

Returns​

RangeOffsets

The new offsets for the given range

Defined in​

core/updateSelections/getOffsetsForDeleteOrReplace.ts:29