On the previous version, i made a custom widget on a custom page. The widget was based on the welcome widget. 

I see on the welcome widget of the new version, there is this behind the html code :
photo_upload - Photo upload link
change_avatar - Change avatar link

My idea is to create a new a custom widget where user can change their photo profil. But It doesn't work with just a copy/past of html code of the welcome widget. 

So how can i take the two above variable to put it in a custom widget ?