[cookie-consent] Add extra configuration options

[web-padawan]

As a developer, I want my users not to just click the button to remove this cookie info, but to take some actions, especially:

1. tick the purposes for the possible data processing (GDPR). Possible idea: checkbox group (because we can), with the first checkbox required and disabled. See example below:
2. once the cookie consent dialog is closed, I want to know which purposes have been marked as agree / disagree

If this is not supported by cookieconsent library, we probably could provide a helper element and pass it into the light dom of the vaadin-cookie-consent.

[jcgueriaud]

To be compliance to GDPR, I would like to:

• block scripts/external services if I did not consent (for example if I don't accept youtube or google-captcha or google analytics these scripts or iframe are blocked)
• change my choices easily (I can accept youtube cookie, watch the video then refuse it)
• remove my choices (almost the same as change).
• All text should be easily translated.

There is an example on this website https://www.cnil.fr/fr/solutions-centralisees-de-recueil-de-consentement-aux-cookies-les-gestionnaires-de-tag (i'm pretty there are a lot of website will nice solutions).

I don't know how it may be implemented with webcomponents, it should be easily extended because you cannot deal with all the "provider" (youtube, analytics, ...).

Perhaps something like that: <vaadin-cookie-consent> <vaadin-cookie-consent-details id="youtube"> <info>custom text</info> <readmore>https://policies.google.com/privacy?hl=fr&gl=fr</readmore> </vaadin-cookie-consent-details> </vaadin-cookie-consent>

then (blocked until user accepts "youtube" cookie) <vaadin-consent ref="youtube"> <iframe width="420" height="315" src="youtube link"></iframe> </vaadin-consent>

What do you think ? :)

[heruan]

This is really needed, any ETA?