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deep event propagation over linked elements

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Bartosz Sypytkowski 2023-06-09 16:17:21 +02:00
parent 6bbb6aca74
commit 0e0d626220
2 changed files with 19 additions and 16 deletions
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5
src/types/AbstractType.js
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@ -242,6 +242,11 @@ export const callTypeObservers = (type, transaction, event) => {
map.setIfUndefined(changedParentTypes, type, () => []).push(event) map.setIfUndefined(changedParentTypes, type, () => []).push(event)
if (type._item === null) { if (type._item === null) {
break break
} else if (type._item.linkedBy !== null) {
for (let link of type._item.linkedBy) {
// @ts-ignore
map.setIfUndefined(changedParentTypes, link, () => []).push(event)
}
} }
type = /** @type {AbstractType<any>} */ (type._item.parent) type = /** @type {AbstractType<any>} */ (type._item.parent)
} }

30
tests/y-weak-links.tests.js
View File

@ -210,28 +210,26 @@ export const testObserveArray = tc => {
/** /**
* @param {t.TestCase} tc * @param {t.TestCase} tc
*/ */
const testObserveTransitive = tc => { export const testObserveTransitive = tc => {
// test observers in a face of linked chains of values // test observers in a face of linked chains of values
const doc = new Y.Doc() const doc = new Y.Doc()
const map1 = doc.getMap('map1') const map1 = doc.getMap('map1')
const map2 = doc.getMap('map2') const map2 = doc.getMap('map2')
map2.set('key', 'value1')
const link1 = /** @type {Y.WeakLink<String>} */ (map2.link('key'))
map1.set('link-to-key', link1)
const link2 = /** @type {Y.WeakLink<String>} */ (map1.link('link-to-key'))
map2.set('link-to-link', link2) // make 'b2' link to value of 'a1' which is a link to 'a2'
/** /**
* @type {Map<string, { action: 'add' | 'update' | 'delete', oldValue: any, newValue: any }>} * @type {Array<any>}
*/ */
let keys let events = []
map2.observe((e) => keys = e.keys) link2.observeDeep((e) => events = e)
map2.set('key', 'value2')
map2.set('a2', 'value1') const values = events.map((e) => e.target.deref())
const link1 = map2.link('a2') t.compare(values, ['value2'])
map1.set('a1', link1)
const link2 = map1.link('a1')
map2.set('b2', link2) // make 'b2' link to value of 'a1' which is a link to 'a2'
keys = /** @type {any} */ (null)
map2.set('a2', 'value2')
t.compare(keys.get('a2'), { action:'update', oldValue: 'value1', newValue: 'value2' })
t.compare(keys.get('b2'), { action:'update', oldValue: 'value1', newValue: 'value2' })
} }
/** /**