Issue #5641💬 AnsweredOpened January 24, 2024by yashvi20260 reactions

Undomanager.remove() not working

Quick answerby artf

The problem here is not Undomanager.remove but what is tracked. When you're resizing the image, you're not editing the Component itself but its CssRule object so that's why it's not working as expected. I'd probably suggest to simply skip the undo manager with operations you don't want to track

Read full answer below ↓

Question

GrapesJS version

  • I confirm to use the latest version of GrapesJS

What browser are you using?

Chrome v91

Reproducible demo link

Code SnippetTEXT
https://codepen.io/Harshsne/pen/WNgZzPE

### Describe the bug

**How to reproduce the bug?**
1. Append an image to the canvas and  close the image modal.(so that component will be removed from tracking as i have removed the component from the undomanager stack)
` editor.on('asset:close', () => {
   console.log("close")
    const selected = editor.getSelected();  
    if (selected && selected.is('image')) {
  editor.UndoManager.remove(selected);  
    }
  })`
2. Press crtl+ z

**What is the expected behavior?**
...Removed component from the undomanager should not be tracked and when i press crtl+z its changes should not be displayed.

**What is the current behavior?**
Removed component from undomanager is still tracked by undomanager.

![undomanager new](https://github.com/GrapesJS/grapesjs/assets/133509113/d1bc9720-161c-4839-8810-7bba8c9c7d7c)

My actual need is:
when i close the image modal without adding any image to it ,I have removed the image block as in my code  ,so when i press undo without any src the appended image block is displayed i dont want that to happen so i would like to remove that component from the undomanager stack .
` editor.on('asset:close', () => {
    const selected = editor.getSelected();
    if (selected && selected.is('image')) {
      if (selected.get('attributes').src == "empty") {
        editor.getSelected().remove();
        editor.select();
       editor.UndoManager.remove(selected);
    }
    }
  })`
Any other alternative way i can achieve this? @artf 
### Code of Conduct

- [X] I agree to follow this project's Code of Conduct

Answers (2)

artfFebruary 10, 2024

The problem here is not Undomanager.remove but what is tracked. When you're resizing the image, you're not editing the Component itself but its CssRule object so that's why it's not working as expected. I'd probably suggest to simply skip the undo manager with operations you don't want to track

editor.UndoManager.skip(() => {
  // ....
});
ClaudeCodeMay 17, 2026

Thanks for reporting this, @yashvi2026.

Great question about Undomanager.remove() not working. The recommended approach with Canvas is to use the event-driven API.

Start here:

  1. Check the GrapesJS documentation for your specific module
  2. Look for the on() event listener method
  3. 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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