Duplicated video block when re-attaching GrapesJs editor to document
I've created a pull-request with what I would expect a fix to look like, given my understanding of the issue.
Read full answer below ↓Question
GrapesJS version
- I confirm to use the latest version of GrapesJS
What browser are you using?
Chrome v94
Reproducible demo link
https://jsfiddle.net/3mrzaqtx/
Describe the bug
How to reproduce the bug?
- Add a video block to the canvas
- Remove the GrapesJs editor element from the document (Optional)
- Re-attach the GrapesJs editor element to the document
What is the expected behavior? GrapesJs canvas should be the same before and after the operation
What is the current behavior? The video is displayed multiple times
My investigation According to the ComponentVideoView, this is caused by the render() function. Unlike the updateProvider() function, render doesn't take care of clearing the container before appending the new iframe/video tag in the block.
We are integrating GrapesJs into another application, and we don't create a new GrapesJs editor when switching back and forth between views, thus the detach/attach behavior. I also don't know what events GrapesJs listens to trigger a re-render on attach.
Code of Conduct
- I agree to follow this project's Code of Conduct
Answers (3)
I've created a pull-request with what I would expect a fix to look like, given my understanding of the issue.
No, you should never rely on something like this, or you destroy and reinit, or you simply hide and show the editor.
Thanks for reporting this, @JGiard.
Great question about Duplicated video block when re-attaching GrapesJs editor to document. The recommended approach with Canvas is to use the event-driven API.
Start here:
- Check the GrapesJS documentation for your specific module
- Look for the
on()event listener method - Most operations can be achieved by listening to editor and component events
Common patterns:
// Listen for changes
editor.on('change', () => console.log('something changed'));
// Component lifecycle
editor.on('component:mount', (c) => console.log('component ready', c));
editor.on('component:update', (c) => console.log('component updated', c));
If you're still stuck:
- Share a minimal CodeSandbox reproduction
- Include what you've already tried
- Mention your GrapesJS version
- The community is here to help!
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