Splitting the links in two

We utilize the insertContent function to inject HTML into CKEditor 5, which appears to be the recommended method for injecting model fragments (such as <nbsp>&nbsp;</nbsp>).

Referencing our implementation in the nbspCommand.js file.

However, we've encountered an issue where using insertContent within a link results in the link being split, as noted by @luci_ole.
Despite searching the CKEditor 5 documentation and the Github Issue Queue, we haven't found a solution to prevent this behavior.

Any assistance in resolving this issue would be greatly appreciated. If any maintainers or individuals are aware of modules or implementations that successfully insert HTML within a link in CKEditor 5, we would be eager to examine their approach.

It was a schema issue as pointed by ksenzee on Slack https://drupal.slack.com/archives/C01GWN3QYJD/p1714662493560729?thread_t...

To solve the problem, I just changed the schema

    schema.register("nbsp", {
      allowWhere: '$text',
+      allowAttributesOf: '$text',
      isInline: true,
+      isObject: true
    });

Merged on dev branch 3.0.x

For people willing to use this fix before release of 3.0.2, please use the patch on Gitlab.

Give credit to ksenzee for helping me pointing the issue on Slack
https://drupal.slack.com/archives/C01GWN3QYJD/p1714637176482069

The test in #3 works fine, but when you add an "a" tag in wysiwyg, and add an "nbsp" tag inside it using the "non-breaking space" button, the "a" tag will be split !

I've made a new batch of fix about how the command inject the nbsp tag. Should now propertly keep all AttributeElement and not break them (eg. breaking links).

For thos willing to help reviewing the code, you can integrate this patch in a Drupal project using Composer & cweagans/composer-patches.

1. Update your composer.json file to apply the patch.
   
   

     "extra": {
         "patches": {
           "drupal/nbsp": {
             "Splitting the links in two - 3432756": "https://git.drupalcode.org/project/nbsp/-/merge_requests/14.patch"
           }
         }
       }
     

2. run the command composer update drupal/nbsp in order to apply the patch
3. Review the changes in your Drupal UI

I tested the new patch, it works well for me, thanks @wengerk

Thanks for testing it ! merged in 3.0.x (dev) will made a new release asap