One problem I remember we had in galeon was which mouse button to use for
gestures. Using right button breaks the context menu behavior (we dont have one
right now but I guess it could be added in future). Middle button is taken by
scrolling and left button by selection.

these were the gestures used by gpdf (which i liked, if i could choose, i would
rather have the guestures instead of the "middlemouse-button-press-scrolling")

A B C
D E F
G H I

D -> F: next page
F -> D: precious page
I -> A: zoom out
A -> I: zoom in
B -> H: end of document
H -> B: begin of document

it might be possible there are other gestures :)

Haha, didn't know there were people who knew about the gestures (except the few
whom I told about). Michaël's list is complete.

Created attachment 48161 [details] [review]
Patch

Also should fix bug 170874, bug 308128, 308265

Created attachment 48164 [details] [review]
Updated patch

About gestures I think we are going to wontfix, as discussed on irc.