Copyright (C) Dror S. & Kol-Zchut Ltd, Ryan Finnie

Originally based on GoogleSiteSearch (v2.0) by Ryan Finnie (http://www.mediawiki.org/wiki/Extension:GoogleSiteSearch)

Adds Special:GoogleSearch which allows to use a Google CSE (Google Custom Search Engine). It can also replace the regular wiki search for all or select groups.

• $wgWRGoogleSearchCSEID = 'Your CSE ID here'. The search engine ID you get from Google.

• $wgWRGoogleSearchOnly = true/false. Whether to take over the regular search.

• $wgWRGoogleSearchExemptGroups = array( 'user' ). If $wgWRGoogleSearchOnly is true, this will be an array of user groups that still get the regular search.

• $wgWRGoogleSearchEnableSitelinksSearch = true/false. Enabled by default, adds the appropriate structured data for enabling a Google sitelinks search box.

• Pushes the following event to Google Tag Manager's dataLayer:

    {
        event: 'Site Search',
        'event data': {
            'search term': query
        }
    }