How to Prevent Image Insertion in Javascript RichTextEditor?

When working with Javascript Rich Text Editor, there may be scenarios where you need to restrict users from inserting images. This can be achieved by handling specific events and properties within the editor’s configuration. Below is a guide on how to disable the image insertion functionality in a Rich Text Editor.

Disabling Image Uploads

To disable image uploads through the image toolbar, you can utilize the actionBegin event. By setting e.cancel to true within this event, you can prevent the image upload action from being completed.

Here is an example of how to configure the Rich Text Editor to cancel image upload requests:

let defaultRTE = new RichTextEditor({
  // ... other configurations ...
  actionBegin: actionBegin,
});

defaultRTE.appendTo('#defaultRTE');

function actionBegin(e) {
  if (e.requestType === 'Image') {
    e.cancel = true;
  }
}

Disabling Image Pasting

If you want to prevent users from pasting images into the Rich Text Editor, you can use the deniedTags property from the pasteCleanupSettings. By specifying ['img'] as a denied tag, the editor will not allow image tags to be pasted.

Here is how you can set up the pasteCleanupSettings:

let defaultRTE = new RichTextEditor({
  pasteCleanupSettings: {
    deniedTags: ['img'],
  },
  // ... other configurations ...
});

defaultRTE.appendTo('#defaultRTE');

By combining both methods, you can effectively prevent users from inserting images into the Rich Text Editor, whether by uploading or pasting.

Additional Resources

For more detailed information on configuring the Rich Text Editor and understanding its API, you can refer to the following resources:

• Rich Text Editor Paste Cleanup Documentation
• Rich Text Editor API - actionBegin Event

These resources provide comprehensive guides and examples to help you customize the Rich Text Editor to fit your specific requirements.

Conclusion

I hope you enjoyed learning how to prevent image insertion in Javascript Rich Text Editor.

You can refer to our Javascript Rich Text Editor feature tour page to learn about its other features and documentation, and how to quickly get started for configuration specifications. You can also explore our Javascript Rich Text Editor example to understand how to create and visualize data.

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