Edit Link about react-rte HOT 2 OPEN

I'd like to implement the following behavior:

When your cursor is on a link (no selection) and you click the link button:

• The link gets selected.
• The URL of that link gets populated into the InputPopover.

When there is a selection and you click the link button:

• If the entire selection links to one URL, populate that into the InputPopover
• When the InputPopover is submitted, clear any existing link(s) from selected text and create a new link to the specified URL.

from react-rte.

There has been an attempt at this in #59 but it does not exactly conform to the behavior outlined above. There is some discussion on that issue about edge cases.

For instance, "when people put cursor between two links, editor doesn't know which link to edit. Former or latter?" I believe there is an expectation that the cursor is considered "on" the character to the left of it (unless the cursor is at the beginning in which case it is considered on the character to the right). This coincides with the cursor behavior of inline styles.

from react-rte.