+35
-2
lines changedFilter options
+35
-2
lines changed Original file line number Diff line number Diff line change
@@ -260,9 +260,14 @@ export function createPatchFunction (backend) {
260 260
// of going through the normal attribute patching process.
261 261
function setScope (vnode) {
262 262
let i
263 -
if (isDef(i = vnode.context) && isDef(i = i.$options._scopeId)) {
264 -
nodeOps.setAttribute(vnode.elm, i, '')
263 +
let ancestor = vnode
264 +
while (ancestor) {
265 +
if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
266 +
nodeOps.setAttribute(vnode.elm, i, '')
267 +
}
268 +
ancestor = ancestor.parent
265 269
}
270 +
// for slot content they should also get the scopeId from the host instance.
266 271
if (isDef(i = activeInstance) &&
267 272
i !== vnode.context &&
268 273
isDef(i = i.$options._scopeId)) {
@@ -40,4 +40,32 @@ describe('Options _scopeId', () => {
40 40
expect(vm.$el.children[0].children[0].hasAttribute('foo')).toBe(true)
41 41
expect(vm.$el.children[0].children[0].hasAttribute('bar')).toBe(true)
42 42
})
43 + 44 +
// #4774
45 +
it('should not discard parent scopeId when component root element is replaced', done => {
46 +
const vm = new Vue({
47 +
_scopeId: 'data-1',
48 +
template: `<div><child ref="child" /></div>`,
49 +
components: {
50 +
child: {
51 +
_scopeId: 'data-2',
52 +
data: () => ({ show: true }),
53 +
template: '<div v-if="show"></div>'
54 +
}
55 +
}
56 +
}).$mount()
57 + 58 +
const child = vm.$refs.child
59 + 60 +
expect(child.$el.hasAttribute('data-1')).toBe(true)
61 +
expect(child.$el.hasAttribute('data-2')).toBe(true)
62 + 63 +
child.show = false
64 +
waitForUpdate(() => {
65 +
child.show = true
66 +
}).then(() => {
67 +
expect(child.$el.hasAttribute('data-1')).toBe(true)
68 +
expect(child.$el.hasAttribute('data-2')).toBe(true)
69 +
}).then(done)
70 +
})
43 71
})
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