Add a new Ecore_Drm API for setting left-handed mouse

Summary:
Add a new Ecore_Drm API named ecore_drm_device_left_handed_set().
Libinput support various input options. Left handed mode is one of options.
Right-handed people and left-handed people use a mouse
using different button mapping.
So if a left handed option is enabled, libinput change right mouse button and
left mouse button.
So support this option, I added this api using libinput's left handed option.

@feature

Test Plan:
After set left handed mode, left mouse button generate button numbered 3,
and right mouse button generate button numbered 1.

Reviewers: raster, ManMower, devilhorns

Subscribers: ohduna, cedric, jpeg, input.hacker

Differential Revision: https://phab.enlightenment.org/D3431

1 files changed, 11 insertions, 0 deletions

diff --git a/src/lib/ecore_drm/ecore_drm_evdev.c b/src/lib/ecore_drm/ecore_drm_evdev.c
index 1052f98f7c..b40aa43962 100644
--- a/src/lib/ecore_drm/ecore_drm_evdev.c
+++ b/src/lib/ecore_drm/ecore_drm_evdev.c
@@ -651,6 +651,17 @@ _ecore_drm_evdev_device_create(Ecore_Drm_Seat *seat, struct libinput_device *dev
 
         /* TODO: make this configurable */
         edev->mouse.threshold = 250;
+
+        dev = seat->input->dev;
+        if (dev->left_handed == EINA_TRUE)
+          {
+             if (libinput_device_config_left_handed_set(device, 1) !=
+                 LIBINPUT_CONFIG_STATUS_SUCCESS)
+               {
+                  WRN("Failed to set left hand mode about device: %s\n",
+                      libinput_device_get_name(device));
+               }
+          }
      }
 
    if (libinput_device_has_capability(device, LIBINPUT_DEVICE_CAP_TOUCH))