storybookjs/storybook

[Bug]: Vue KeepAlive onActivated dose NOT work in storybook decorators

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#27149 opened on May 15, 2024

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Description

Describe the bug

See Reproduce: As story title said, in 'On Activated Dose Not Invock', onActivated dosen't be called.

export default {
  title: 'Example/Page2',
  component: Page,
  decorators: [
    (story) => ({
      components: { story },
      template: `<KeepAlive><story /></KeepAlive>`, // differece: use story, not Page
    }),
  ],
};

image

But in Keepalive Works Fine, onActivatedis called.

export default {
  title: 'Example/Page',
  component: Page,
  decorators: [
    (story) => ({
      components: { Page },
      template: `<KeepAlive><Page /></KeepAlive>`,
    }),
  ],
};

image

To Reproduce

https://stackblitz.com/edit/github-lfs33b

System

Storybook Environment Info:

  System:
    OS: macOS 14.4.1
    CPU: (12) arm64 Apple M2 Pro
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 18.15.0 - ~/.nvm/versions/node/v18.15.0/bin/node
    npm: 9.5.0 - ~/.nvm/versions/node/v18.15.0/bin/npm
    pnpm: 8.14.1 - ~/.nvm/versions/node/v18.15.0/bin/pnpm <----- active
  Browsers:
    Chrome: 124.0.6367.158
    Safari: 17.4.1

Additional context

No response

Contributor guide

Tech stack
vuejavascripttypescript
Domain
frontendtesting
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Vue 3StorybookJavaScript
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Investigate the difference between using story and Page in the decorator. Check the Vue addon's source code for how decorators are rendered, specifically how KeepAlive handles the dynamic component. The StackBlitz link provides a minimal reproduction. Look at the Vue addon's render function to see if the story component is properly handled as a KeepAlive child.