Magic Mouse (inertial scrolling) and the shift key

ealimonda commented 6 years ago

When using the Magic Mouse (or any mouse with inertial scrolling), if you press the Shift key while a scroll action is in progress, you get unwanted zoom events. If this was resolved (i.e. ignoring any shift-scroll events if the shift key wasn't pressed before the scroll started), this addon would be really awesome.

Steps to reproduce:

Have a Magic Mouse or another inertial-scrolling device connected
Load a zoomable webpage, preferably a very long one such as https://bugzilla.mozilla.org/show_bug.cgi?id=688990
Scroll through the page with large swipes on the MM surface
Stop swiping and while the page still scrolls with inertia, press the shift key (i.e. as part of the shift-cmd-tab shortcut)
See the page that zooms in (or out depending on the scroll direction) on its own

Either way, it'd be nice to have a setting to disable the shift-scroll functionality, and only zoom with the pinch gesture (because this issue can be triggered even without inertial scrolling, although less frequently)

haxiomic commented 6 years ago

Hey @ealimonda, thanks for reporting – good spot! I'd not noticed the inertial scrolling carries into zoom when you press shift. At the very least I'll add some settings to disable shift-scroll but I'll also see if there's a way to prevent the inertial scroll splitting over

chamini2 commented 5 years ago

close, right?

haxiomic commented 5 years ago

@chamini2 yep, let’s close this now.

Option was added to disable shift scroll in v0.7

haxiomic / firefox-multi-touch-zoom

Magic Mouse (inertial scrolling) and the shift key #5