Add environment and meta gestures

With meta gestures, the gesture starts given a certain number of
fingers, but can then continue even if the number of fingers change.
By configuration, such gestures live on a different priority plane
from normal gestures. To match window manager specs, this patch adds
the environment and meta planes, and add drag, pinch and rotate gestures
initiated with three and four fingers, respectively.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/grail-types.h b/include/grail-types.h
index 83a653c..10c1fa1 100644
--- a/include/grail-types.h
+++ b/include/grail-types.h
@@ -49,6 +49,14 @@
 #define GRAIL_TYPE_TAP4         18      /* four-finger single tap */
 #define GRAIL_TYPE_TAP5         19      /* five-finger single tap */
 
+#define GRAIL_TYPE_EDRAG        20      /* three-finger environment drag */
+#define GRAIL_TYPE_EPINCH       21      /* three-finger environment drag */
+#define GRAIL_TYPE_EROTATE      22      /* three-finger environment drag */
+
+#define GRAIL_TYPE_MDRAG        23      /* four-finger meta drag */
+#define GRAIL_TYPE_MPINCH       24      /* four-finger meta drag */
+#define GRAIL_TYPE_MROTATE      25      /* four-finger meta drag */
+
 #define GRAIL_PROP_DRAG_DX      0       /* horizontal position delta */
 #define GRAIL_PROP_DRAG_DY      1       /* vertical position delta */
 #define GRAIL_PROP_DRAG_VX      2       /* horizontal velocity */