Fix vue resetting state when using view transition persistence #11946
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pkg: vue
matthewp
reviewed
Sep 9, 2024
packages/integrations/vue/client.js
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| } else { | ||
| appInstance.props = props; | ||
| appInstance.slots = slots; | ||
| appInstance.app._instance.proxy.$forceUpdate(); |
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is this how you're supposed to trigger an update? If this is private code we shouldn't do it, and try to find another way.
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I checked again and found a better way to call the $forceUpdate method (which is documented), so I don't think there is any private implementation details used any more.
matthewp
approved these changes
Sep 17, 2024
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Changes
This change keeps track of all initialized vue islands in order to update the existing instance rather than creating a new app, which resets the state.
I'm by no means a Vue expert and there might be more elegant ways to achieve this. I tried to follow the approach of the React implementation (using a
WeakMap), however, patching the props is a bit more difficult than in in React. I'm happy to improve it in case anybody has a better idea.This fixes #11854,
Testing
E2E test was added.
Docs
As this is only a fix, I don't think documentation is needed. However, it could be pointed out that state persistence is currently broken for all frameworks except for React and Vue if I'm not mistaken.