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add y.js support for codeblock extension

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This commit is contained in:
Philipp Kühn 2021-04-03 12:34:27 +02:00
parent 6757813fd0
commit 25582c64cc
1 changed files with 25 additions and 3 deletions
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28
packages/extension-code-block-lowlight/src/lowlight-plugin.ts
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@ -71,9 +71,31 @@ export function LowlightPlugin({ name }: { name: string }) {
const oldNodes = findChildren(oldState.doc, node => node.type.name === name)
const newNodes = findChildren(newState.doc, node => node.type.name === name)
// Apply decorations if selection includes named node, or transaction changes named node.
if (transaction.docChanged && ([oldNodeName, newNodeName].includes(name)
|| newNodes.length !== oldNodes.length)) {
if (
transaction.docChanged
// Apply decorations if:
&& (
// selection includes named node,
[oldNodeName, newNodeName].includes(name)
// OR transaction adds/removes named node,
|| newNodes.length !== oldNodes.length
// OR transaction has changes that completely encapsulte a node
// (for example, a transaction that affects the entire document).
// Such transactions can happen during collab syncing via y-prosemirror, for example.
|| transaction.steps.some(step => {
// @ts-ignore
return step.from !== undefined
// @ts-ignore
&& step.to !== undefined
&& oldNodes.some(node => {
// @ts-ignore
return node.pos >= step.from
// @ts-ignore
&& node.pos + node.node.nodeSize <= step.to
})
})
)
) {
return getDecorations({ doc: transaction.doc, name })
}