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Code Issues Releases Wiki Activity

remove unnecessary changes from deleteAtRange

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Ian Storm Taylor
2017-09-21 13:30:20 -07:00
parent 95fcf27472
commit f983a58d3b
1 changed files with 12 additions and 3 deletions
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15
packages/slate/src/changes/at-range.js
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@@ -154,6 +154,7 @@ Changes.deleteAtRange = (change, range, options = {}) => {
const startText = document.getNode(startKey)
const endText = document.getNode(endKey)
const startLength = startText.text.length - startOffset
const endLength = endOffset
const ancestor = document.getCommonAncestor(startKey, endKey)
const startChild = ancestor.getFurthestAncestor(startKey)
@@ -161,6 +162,7 @@ Changes.deleteAtRange = (change, range, options = {}) => {
const startParent = document.getParent(startBlock.key)
const startParentIndex = startParent.nodes.indexOf(startBlock)
const endParentIndex = startParent.nodes.indexOf(endBlock)
let child
@@ -205,8 +207,13 @@ Changes.deleteAtRange = (change, range, options = {}) => {
}
// Remove any overlapping text content from the leaf text nodes.
change.removeTextByKey(startKey, startOffset, startLength, { normalize: false })
change.removeTextByKey(endKey, 0, endOffset, { normalize: false })
if (startLength != 0) {
change.removeTextByKey(startKey, startOffset, startLength, { normalize: false })
}
if (endLength != 0) {
change.removeTextByKey(endKey, 0, endOffset, { normalize: false })
}
// If the start and end blocks aren't the same, move and merge the end block
// into the start block.
@@ -215,7 +222,9 @@ Changes.deleteAtRange = (change, range, options = {}) => {
const lonely = document.getFurthestOnlyChildAncestor(endBlock.key)
// Move the end block to be right after the start block.
change.moveNodeByKey(endBlock.key, startParent.key, startParentIndex + 1)
if (endParentIndex != startParentIndex + 1) {
change.moveNodeByKey(endBlock.key, startParent.key, startParentIndex + 1)
}
// If the selection is hanging, just remove the start block, otherwise
// merge the end block into it.