3 finger horiz.: three fingers in a row (usually ring/middle/index)
4 finger horiz.: four fingers in a row (usually pinky/ring/middle/index) - may be hard to disambiguate horizontal swipes on small trackpads, so we will overlap many gestures with the three finger variants
1 finger edge: one finger moving in and out of the trackpad bounds
May require hardware support.
Vertical gestures may be problematic because of limited space.
3 finger group: three fingers in a circle (usually thumb/middle/index [or ring])
Due to people resting their thumb on the trackpad, many of these gestures are problematic, particularly pinch and rotate gestures. Swipe gestures are generally pretty usable.
4 finger group: four fingers in a circle (usually thumb + ring/middle/index)
Problematic as above. Swipe gestures are acceptable.
Proposed behaviors
Main view
one finger — cursor
two fingers — content manipulation
Sites can override all two finger gestures passed to the content area
Pinch - defaults to page zoom
Rotate - defaults to nothing
Translate - defaults to scroll
three fingers horizontal
tab switch
three fingers up — into overview
three fingers down — focus panels
four fingers up — into overview
four fingers down — focus panels
four fingers horizontal — window switching
three finger group translate — back/forward or tab switch (reverse of horizontal's behavior)
three finger group rotate — problematic because of two finger with anchored thumb
one finger left/right edge in — back/forward
one finger left/right edge out — forward/back, or sidebar reveal
one finger top edge in — overview
one finger bottom edge in — panels
Overview
two fingers horizontal — switch tabs
two fingers up/down? — close tab
three fingers — switch windows
four fingers — window switching
three fingers down — out of overview
four fingers down — out of overview
three or four fingers up — logout
Panels
two fingers = scroll current panel
three fingers horizontal = switch panels
three fingers up = back to main view
Full Multitouch (Direct manipulation)
All content area gestures (two and one finger) passed directly to web pages
Default behaviors for one and two finger gestures as above
We may reserve the above 3/4 finger gestures for os needs:
