Clare Ming 457dcfc472 Add scroll event + init A/B test logging to sticky header, AB js ... - Pull IntersectionObserver into new file to share observer with different callbacks: - Wrap show/hide functionality of sticky header in conditionals based on user test group or by default. - Fire hooks for scroll event tracking in WME. - Add new js for A/B test functions and variables: - Fire hook to send data for A/B test initialization. - Update main js to include scrollObserver, A/B test init functionality. - Add A/B test config. - Update ResourceLoader package dependencies for sticky header. - Though not a strict dependency, see I42e3e7c2084c1e88363d5d1662630ed23a28c4d2 in WME repo which uses these hooks to log scroll events. - This patch includes changes from I56f40e706f8706fde1c0891a0561dd32c5e02bfc which were consolidated here for simplicity and ease of review - related to T292587 which calls for logging an init event for bucketing of users during A/B testing. Bug: T292586 Change-Id: If6446e1e84cea3649905808c4f0e9f6862255fa3		2021-11-09 15:00:25 -07:00
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FeatureManagement	build: Updating dependencies	2021-07-24 01:35:45 +00:00
HTMLForm/Fields	build: Updating mediawiki/mediawiki-codesniffer to 33.0.0	2020-11-17 23:33:50 +01:00
Services	search: Disable query highlight for some languages	2021-06-30 16:47:46 +01:00
templates	Remove duplicate vector-menu-dropdown class	2021-10-25 09:55:42 -06:00
Constants.php	Add scroll event + init A/B test logging to sticky header, AB js	2021-11-09 15:00:25 -07:00
Hooks.php	Add scroll event + init A/B test logging to sticky header, AB js	2021-11-09 15:00:25 -07:00
ServiceWiring.php	Add sticky header edit feature flag	2021-10-26 21:59:29 +00:00
SkinVector.php	Add sticky header edit feature flag	2021-10-26 21:59:29 +00:00
SkinVersionLookup.php	Use User->isRegistered(), not deprecated isLoggedIn()	2020-12-19 16:44:06 +00:00
VectorServices.php	search: Disable query highlight for some languages	2021-06-30 16:47:46 +01:00