Merge pull request #607 from BrianHung/HighlightTransaction

Apply decorations in HighlightPlugin if change in named nodes.
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Philipp Kühn 2020-04-01 20:32:19 +02:00 committed by GitHub
commit 5574ac4d56
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@ -62,17 +62,20 @@ export default function HighlightPlugin({ name }) {
name: new PluginKey('highlight'),
state: {
init: (_, { doc }) => getDecorations({ doc, name }),
apply: (transaction, decorationSet, oldState, state) => {
apply: (transaction, decorationSet, oldState, newState) => {
// TODO: find way to cache decorations
// see: https://discuss.prosemirror.net/t/how-to-update-multiple-inline-decorations-on-node-change/1493
const nodeName = state.selection.$head.parent.type.name
const previousNodeName = oldState.selection.$head.parent.type.name
if (transaction.docChanged && [nodeName, previousNodeName].includes(name)) {
// https://discuss.prosemirror.net/t/how-to-update-multiple-inline-decorations-on-node-change/1493
const oldNodeName = oldState.selection.$head.parent.type.name
const newNodeName = newState.selection.$head.parent.type.name
const oldNodes = findBlockNodes(oldState.doc)
.filter(item => item.node.type.name === name)
const newNodes = findBlockNodes(newState.doc)
.filter(item => item.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)) {
return getDecorations({ doc: transaction.doc, name })
}
return decorationSet.map(transaction.mapping, transaction.doc)
},
},