As of March 3, 2014 I intend to turn on by default CSS Scroll Snapping on B2G. It has been developed behind the layout.css.scroll-snap.enabled preference. Firefox is the first UA to ship this feature.
Platform coverage: Initially, this will be enabled only on B2G (Firefox OS). Desktop platforms will be enabled once scroll bar support for CSS scroll snapping lands (Bug 969250). Fennec will be enabled once the C++ based APZC implementation ships for Fennec (Bug 1138668). This feature was previous discussed in this "intent to implement" thread: https://groups.google.com/forum/#!topic/mozilla.dev.platform/HX9lwWZ250o/discussion Feedback during the draft updates on the css-snappoints specification took place on the w3.org www-style mailing list. Bug to turn on by default: Bug 1138651 - Enable CSS Scroll Snapping by Default on B2G Link to standard: http://dev.w3.org/csswg/css-snappoints/ The entirety of the W3 specification is implemented, with one exception. In section 4 (Scroll Snap Types: the 'scroll-snap-type' property), the specification reads, "If the content changes such that the visual viewport would no longer rest on a snap point (e.g. content is added, moved, deleted, resized), the scroll offset must be modified to maintain this guarantee.". Support for this is tracked in Bug 1124324 (Perform instant and smooth scrolls to maintain guarantees set by scroll snapping CSS attributes when content changes) and will be landed separately. - Kearwood "Kip" Gilbert _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
