What is the exact language? I find the parenthesis to be an awkward
sentence structure. If that is the actual language in the tool-tip.
I would think something like "Tapping: Left half = previous page, Right
Half = following page
would suffice. or *Tapping: Left side = Previous, Right side = Subsequent*

What is the behavior of the mouse buttons? In other words can the left
mouse button make it go forward without being anywhere on the screen, and
the right button make if go backwards. I'm asking this because there are
programmable pedals for turning pages as well. I believe they are related
to left and right mouse button clicks. I don't have one though so I'm not
positive how they work, but one would think there is some kind of standard.

In D18118#392071, @sander wrote:

Guys, stop fighting. I'll make it optional in the next patch upload, all I need is a bit of time.

In D18118#392035, @aacid wrote:

In D18118#391950, @gbodley wrote:

In D18118#391651, @aacid wrote:

I still object to this, you're changing the default behaviour of the software for the 0.03% of users that use okular to play in a touch screen while playing the piano.

In D18118#391667, @ngraham wrote:

In D18118#391655, @aacid wrote:

In D18118#391654, @ngraham wrote:

The change is an improvement: Right now when using a touchscreen for presentation mode there is no way to go back. Since this doesn't affect the mouse use case at all, I don't understand the problem here.

That is not true as already discussed, you can swipe back.

**Oh right, I forgot about the three finger swipe backwards because it't non-discoverable and awkward and therefore in practice fairly useless. :(
**

In D18118#391651, @aacid wrote:

I still object to this, you're changing the default behaviour of the software for the 0.03% of users that use okular to play in a touch screen while playing the piano.

In D18118#391388, @ngraham wrote:

If we can implement this for touch only, +1 on touching the left side to go back.

In D18118#391119, @sander wrote:

I think that swiping is a separate issue. One-finger swipes should actually be easy to implement as the difficult part already exists in the Gwenview patch mentioned above. And we probably all agree that one-finger swipes are better than three-finger ones.

However, if I imagine myself sitting in front of a grand piano and having to switch pages very fast, I'd probably still want to touch rather than swipe.

In D18118#391065, @michaelweghorn wrote:

I'd also prefer to leave the current behaviour of a left-click as it is, regardless of the exact position. That is also in line with what e.g. LibreOffice Impress does. Allowing to go back by doing a single-finger swipe sounds great.

In D18118#389518, @ngraham wrote:

In D18118#389517, @sander wrote:

Qt requires you to swipe with three(!) fingers, though

Oh, no wonder I never discovered it. Anything other than single-finger swipe is pretty useless and non-discoverable IMO.

In D18118#389517, @sander wrote:

Changing pages by swiping on a touchscreen works already (Qt requires you to swipe with three(!) fingers, though). But if I were a piano player using Okular to show me the music sheets I'd rather not swipe for fear of smashing the entire screen off the piano.

Swiping is already implemented.

In D18118#389490, @aacid wrote:

I'd be terribly unhappy about this, i never look at where my mouse is when clicking in presentation view.