[mutter] wayland: Add MetaWaylandTabletSeat API to correlate pads/tablets
- From: Carlos Garnacho <carlosg src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [mutter] wayland: Add MetaWaylandTabletSeat API to correlate pads/tablets
- Date: Fri, 22 Jul 2016 11:59:32 +0000 (UTC)
commit 2cd21f1b20dcec3734db8c11bf9770b1b51c1ad9
Author: Carlos Garnacho <carlosg gnome org>
Date: Wed May 11 22:36:26 2016 +0200
wayland: Add MetaWaylandTabletSeat API to correlate pads/tablets
All pads have one tablet, but a tablet may have multiple pads. Add
API to look things up from a MetaWaylandTablet(Pad).
src/wayland/meta-wayland-tablet-seat.c | 83 ++++++++++++++++++++++++++++++++
src/wayland/meta-wayland-tablet-seat.h | 5 ++
2 files changed, 88 insertions(+), 0 deletions(-)
---
diff --git a/src/wayland/meta-wayland-tablet-seat.c b/src/wayland/meta-wayland-tablet-seat.c
index 6366cc3..7b9a07e 100644
--- a/src/wayland/meta-wayland-tablet-seat.c
+++ b/src/wayland/meta-wayland-tablet-seat.c
@@ -441,3 +441,86 @@ meta_wayland_tablet_seat_notify_tool (MetaWaylandTabletSeat *tablet_seat,
if (resource)
notify_tool_added (tablet_seat, resource, tool);
}
+
+static GList *
+lookup_grouped_devices (ClutterInputDevice *device,
+ ClutterInputDeviceType type)
+{
+ ClutterDeviceManager *device_manager;
+ const GSList *devices, *l;
+ GList *group = NULL;
+ MetaBackend *backend = meta_get_backend ();
+
+#ifdef HAVE_NATIVE_BACKEND
+ struct libinput_device *dev, *libinput_device;
+
+ if (META_IS_BACKEND_NATIVE (backend))
+ dev = clutter_evdev_input_device_get_libinput_device (device);
+#endif
+ device_manager = clutter_device_manager_get_default ();
+ devices = clutter_device_manager_peek_devices (device_manager);
+
+ for (l = devices; l; l = l->next)
+ {
+ if (l->data == device)
+ continue;
+ if (clutter_input_device_get_device_type (l->data) != type)
+ continue;
+
+#ifdef HAVE_NATIVE_BACKEND
+ if (META_IS_BACKEND_NATIVE (backend))
+ {
+ libinput_device = clutter_evdev_input_device_get_libinput_device (l->data);
+
+ if (libinput_device_get_device_group (dev) !=
+ libinput_device_get_device_group (libinput_device))
+ continue;
+ }
+#endif
+
+ group = g_list_prepend (group, l->data);
+ }
+
+ return group;
+}
+
+MetaWaylandTablet *
+meta_wayland_tablet_seat_lookup_paired_tablet (MetaWaylandTabletSeat *tablet_seat,
+ MetaWaylandTabletPad *pad)
+{
+ MetaWaylandTablet *tablet;
+ GList *devices;
+
+ devices = lookup_grouped_devices (pad->device, CLUTTER_TABLET_DEVICE);
+
+ if (!devices)
+ return NULL;
+
+ /* We only accept one device here */
+ g_warn_if_fail (!devices->next);
+
+ tablet = meta_wayland_tablet_seat_lookup_tablet (pad->tablet_seat,
+ devices->data);
+ g_list_free (devices);
+
+ return tablet;
+}
+
+GList *
+meta_wayland_tablet_seat_lookup_paired_pads (MetaWaylandTabletSeat *tablet_seat,
+ MetaWaylandTablet *tablet)
+{
+ GList *l, *devices, *pads = NULL;
+ MetaWaylandTabletPad *pad;
+
+ devices = lookup_grouped_devices (tablet->device, CLUTTER_PAD_DEVICE);
+
+ for (l = devices; l; l = l->next)
+ {
+ pad = meta_wayland_tablet_seat_lookup_pad (tablet_seat, l->data);
+ if (pad)
+ pads = g_list_prepend (pads, pad);
+ }
+
+ return pads;
+}
diff --git a/src/wayland/meta-wayland-tablet-seat.h b/src/wayland/meta-wayland-tablet-seat.h
index 653f695..98ce4a9 100644
--- a/src/wayland/meta-wayland-tablet-seat.h
+++ b/src/wayland/meta-wayland-tablet-seat.h
@@ -69,4 +69,9 @@ void meta_wayland_tablet_seat_notify_tool (MetaWayland
MetaWaylandTabletTool *tool,
struct wl_client *client);
+MetaWaylandTablet *meta_wayland_tablet_seat_lookup_paired_tablet (MetaWaylandTabletSeat *tablet_seat,
+ MetaWaylandTabletPad *pad);
+GList *meta_wayland_tablet_seat_lookup_paired_pads (MetaWaylandTabletSeat *tablet_seat,
+ MetaWaylandTablet *tablet);
+
#endif /* META_WAYLAND_TABLET_SEAT_H */
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