[PATCH libinput] Add libinput_device_get_context/libinput_seat_get_context

[Peter Hutterer]

Allow retrieval of the libinput context from the seat and the device.

Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
---
 src/libinput.c | 12 ++++++++++++
 src/libinput.h | 22 ++++++++++++++++++++++
 test/device.c  | 12 ++++++++++++
 3 files changed, 46 insertions(+)

diff --git a/src/libinput.c b/src/libinput.c
index 96b255a..0d380fa 100644
--- a/src/libinput.c
+++ b/src/libinput.c
@@ -651,6 +651,12 @@ libinput_seat_get_user_data(struct libinput_seat *seat)
 	return seat->user_data;
 }
 
+LIBINPUT_EXPORT struct libinput *
+libinput_seat_get_context(struct libinput_seat *seat)
+{
+	return seat->libinput;
+}
+
 LIBINPUT_EXPORT const char *
 libinput_seat_get_physical_name(struct libinput_seat *seat)
 {
@@ -1177,6 +1183,12 @@ libinput_device_get_user_data(struct libinput_device *device)
 	return device->user_data;
 }
 
+LIBINPUT_EXPORT struct libinput *
+libinput_device_get_context(struct libinput_device *device)
+{
+	return libinput_seat_get_context(device->seat);
+}
+
 LIBINPUT_EXPORT const char *
 libinput_device_get_sysname(struct libinput_device *device)
 {
diff --git a/src/libinput.h b/src/libinput.h
index d567df4..db56da7 100644
--- a/src/libinput.h
+++ b/src/libinput.h
@@ -1202,6 +1202,17 @@ libinput_seat_get_user_data(struct libinput_seat *seat);
 /**
  * @ingroup seat
  *
+ * Get the libinput context from the seat.
+ *
+ * @param seat A previously obtained seat
+ * @return The libinput context for this seat.
+ */
+struct libinput *
+libinput_seat_get_context(struct libinput_seat *seat);
+
+/**
+ * @ingroup seat
+ *
  * Return the physical name of the seat. For libinput contexts created from
  * udev, this is always the same value as passed into
  * libinput_udev_assign_seat() and all seats from that context will have
@@ -1291,6 +1302,17 @@ libinput_device_get_user_data(struct libinput_device *device);
 /**
  * @ingroup device
  *
+ * Get the libinput context from the device.
+ *
+ * @param device A previously obtained device
+ * @return The libinput context for this device.
+ */
+struct libinput *
+libinput_device_get_context(struct libinput_device *device);
+
+/**
+ * @ingroup device
+ *
  * Get the system name of the device.
  *
  * To get the descriptive device name, use libinput_device_get_name().
diff --git a/test/device.c b/test/device.c
index 84984f4..28cdb06 100644
--- a/test/device.c
+++ b/test/device.c
@@ -629,6 +629,17 @@ START_TEST(device_get_udev_handle)
 }
 END_TEST
 
+START_TEST(device_context)
+{
+	struct litest_device *dev = litest_current_device();
+	struct libinput_seat *seat;
+
+	ck_assert(dev->libinput == libinput_device_get_context(dev->libinput_device));
+	seat = libinput_device_get_seat(dev->libinput_device);
+	ck_assert(dev->libinput == libinput_seat_get_context(seat));
+}
+END_TEST
+
 int main (int argc, char **argv)
 {
 	litest_add("device:sendevents", device_sendevents_config, LITEST_ANY, LITEST_TOUCHPAD);
@@ -650,6 +661,7 @@ int main (int argc, char **argv)
 	litest_add("device:sendevents", device_disable_release_softbutton, LITEST_CLICKPAD, LITEST_APPLE_CLICKPAD);
 	litest_add("device:sendevents", device_disable_topsoftbutton, LITEST_TOPBUTTONPAD, LITEST_ANY);
 	litest_add("device:id", device_ids, LITEST_ANY, LITEST_ANY);
+	litest_add_for_device("device:context", device_context, LITEST_SYNAPTICS_CLICKPAD);
 
 	litest_add("device:udev", device_get_udev_handle, LITEST_ANY, LITEST_ANY);
 
-- 
2.1.0