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Writing Flow: fix list selection (2) #19724

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ellatrix wants to merge 2 commits into from
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Writing Flow: fix list selection (2) #19724

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4d30890
Writing Flow: fix list selection
ellatrix Jan 17, 2020
a94402e
Add e2e test
ellatrix Jan 17, 2020
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Writing Flow: fix list selection
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@ellatrix
ellatrix committed Jan 17, 2020
commit 4d30890c1690c2095dd5c7dd278d608278d14dbd
23 changes: 22 additions & 1 deletion packages/dom/src/dom.js
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,27 @@ function isSelectionForward( selection ) {
return true;
}

function normaliseRange( range ) {
range = range.cloneRange();

const { startContainer, startOffset } = range;

if (
startContainer.nodeType === startContainer.TEXT_NODE &&
startContainer.nodeValue.length === startOffset
) {
let element = startContainer;

while ( ! element.nextSibling ) {
element = element.parentNode;
}

range.setStart( element.nextSibling, 0 );
}

return range;
}

/**
* Check whether the selection is at the edge of the container. Checks for
* horizontal position by default. Set `onlyVertical` to true to check only
Expand Down Expand Up @@ -93,7 +114,7 @@ function isEdge( container, isReverse, onlyVertical ) {
return false;
}

const range = selection.getRangeAt( 0 ).cloneRange();
const range = normaliseRange( selection.getRangeAt( 0 ) );
const isForward = isSelectionForward( selection );
const isCollapsed = selection.isCollapsed;

Expand Down