[mir]Touchpad edge swipes

[Tim Peeters]

I think it would be awesome to support touchpad edge swipes (fingers crossing the edge of the touchpad, swiping in). I don't know if we would be swiping with two fingers or one (one finger is more likely to be confused with another action that the user wants to perform, like moving the mouse cursor).

Functionality can be the same or very similar to what we are doing on the phone: right-edge to switch between apps (or bring in the side stage), left edge shows the launcher, bottom edge would depend on what the app wants to do with it, and top edge can show system settings.

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Desired design:

Two finger swipe across the touchpad edge should perform corresponding Unity8 touch interface edge gesture.
- Left edge short swipe -> invokes the launcher if hidden
- Left edge long swipe -> reveals desktop app
- Right edge short swipe -> switches to the previously used app
- Right edge long swipe -> spread/task switcher
- Bottom edge swipe -> bottom edge action in currently focused app window
- Top edge swipe -> indicators reveal

Note that gesture should be traceable the same way as in touch interface. So as soon as the touchpad edge swipe is detected user controls the gesture and progress of the action is visible on the screen. Use control is the key throughout the gesture. Here we should follow what happens in Unity8 touch interface.

[Vesa Rautiainen (vesar)]

I think this is a very good idea. I find for example on OSX the way to get the notifications tray from the right with two finger "edge swipe" very useful and intuitive way to interact with the OS. So definitely would consider this option once we're implementing those features.

[Albert Astals Cid (aacid)]

unity8 waiting for design -> Incomplete