Create link only on "OK" button press

Hello everyone,

I overwrote the default 'Link' acton of the rich text editor:
<img width="1274" alt="screen shot 2018-08-13 at 1 58 43 pm" src="https://user-images.githubusercontent.com/28840780/44027999-2788cfaa-9f01-11e8-9f5e-e24d3ced19ed.png">

Now when clicked, a modal opens, where the user can add the desired url, the text display and the target and submits. Something similar to the implementation currently now available on "demo newsletter editor" using the "grapesjs-plugin-ckeditor" I think. <img width="1275" alt="screen shot 2018-08-13 at 1 56 45 pm" src="https://user-images.githubusercontent.com/28840780/44028062-57f71a34-9f01-11e8-980a-2e846b70dce0.png">

I tried the same implementation suggested in the following issue: Issue-610 Try it here

The problem of this implementation is that the link is created even before the modal opens, which is not optimal for the user experience; If the user closes the modal and even without submitting, the link will be created anyway.

My questions are: 1 - How can I check the implementation of the "Link" action of the richTextEditor in "demo newsletter editor" so I can replicate it? Since there and if the modal is closed without submitting, the link is no created. I dowloaded the source code of "grapesjs-preset-newsletter": Source Code
but I can only see the following implementation of the action
link: { icon: <span style="transform:rotate(45deg)">⫘</span>, name: 'link', attributes: { style: 'font-size:1.4rem;padding:0 4px 2px;', title: 'Link' }, result: rte => rte.insertHTML(<a class="link" href="">${rte.selection()}</a>) } which does not lead to opening the modal I am talking about. I also downloaded the source code of ckeditor: Source code and I still coulnd't find the implementation.

2-Why richTextEditor.exec('createLink', '__new__'); or rte.insertHTML(<a class="link" href="">${rte.selection()}</a>) dont lead to creating the link if placed on button click event? so If those 2 commands are executed only on button clicked (ok of the modal), the link is not created.

Thank you