Mozilla Lands GTK3 Touch Event Support In Firefox
Written by Michael Larabel in Mozilla on 21 October 2015 at 10:24 AM EDT. Add A Comment
MOZILLA --
Mozilla developers continue moving along with their support for the GTK3 tool-kit inside the Firefox web-browser.

Firefox Nightlies/Aurora are built with GTK3+ on Linux. While there's been the basic GTK+ 3 support, other items relating to this new tool-kit support still need to be finished up. One of the items now complete is handling touch events of this latest GTK+ version.

Going back to March of 2014 has been this bug report with a patch for implementing GTK3 touch events. As of yesterday, the code has been committed for Firefox 44.

This work actually tracks back further than that to Bug 711711 for the feature request of supporting multi-touch under Linux with Firefox, which hasn't been supported even though Firefox supports it on Windows. Work is still forthcoming for async pan/zoom (APZ) and GNOME gestures support.

Aside from this touch-related work, this Mozilla bug report is tracking other open issues in porting Firefox from GTK2 to GTK3. The good news is that a majority of the tickets have been closed, but there's still several open items to tackle.
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