From d5bdcfc0daaa758a97771ff84a232def87b1659b Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Thu, 3 Mar 2022 11:24:51 +1000
Subject: [PATCH] eis: add the functions to fetch a region back from the device

Same as ei_device_get_region() and friends.
---
 src/libeis-device.c |  6 ++++++
 src/libeis-region.c |  8 ++++++++
 src/libeis.h        | 31 +++++++++++++++++++++++++++++++
 3 files changed, 45 insertions(+)

diff --git a/src/libeis-device.c b/src/libeis-device.c
index 5a0c179..15a84f7 100644
--- a/src/libeis-device.c
+++ b/src/libeis-device.c
@@ -158,6 +158,12 @@ eis_device_get_seat(struct eis_device *device)
 	return eis_device_parent(device);
 }
 
+_public_ struct eis_region *
+eis_device_get_region(struct eis_device *device, size_t index)
+{
+	return list_nth_entry(struct eis_region, &device->regions, link, index);
+}
+
 _public_ void
 eis_device_set_name(struct eis_device *device, const char *name)
 {
diff --git a/src/libeis-region.c b/src/libeis-region.c
index 2ee8db1..7b66387 100644
--- a/src/libeis-region.c
+++ b/src/libeis-region.c
@@ -42,6 +42,14 @@ _public_
 OBJECT_IMPLEMENT_GETTER(eis_region, user_data, void *);
 _public_
 OBJECT_IMPLEMENT_SETTER(eis_region, user_data, void *);
+_public_
+OBJECT_IMPLEMENT_GETTER(eis_region, x, uint32_t);
+_public_
+OBJECT_IMPLEMENT_GETTER(eis_region, y, uint32_t);
+_public_
+OBJECT_IMPLEMENT_GETTER(eis_region, width, uint32_t);
+_public_
+OBJECT_IMPLEMENT_GETTER(eis_region, height, uint32_t);
 
 static
 OBJECT_IMPLEMENT_CREATE(eis_region);
diff --git a/src/libeis.h b/src/libeis.h
index 11c2cfa..0e27b2e 100644
--- a/src/libeis.h
+++ b/src/libeis.h
@@ -604,6 +604,25 @@ eis_region_set_physical_scale(struct eis_region *region, double scale);
 void
 eis_region_add(struct eis_region *region);
 
+/**
+ * Obtain a region from the device. This function only returns regions that
+ * have been added to the device with eis_region_add(). The number of regions
+ * is constant for a device once eis_device_add() has been called and the
+ * indices of any region remains the same for the lifetime of
+ * the device.
+ *
+ * Regions are shared between all capabilities. Where two capabilities need
+ * different region, the EIS implementation must create multiple devices with
+ * individual capabilities and regions.
+ *
+ * This function returns the given region or NULL if the index is larger than
+ * the number of regions available.
+ *
+ * This does not increase the refcount of the region. Use eis_region_ref() to
+ * keep a reference beyond the immediate scope.
+ */
+struct eis_region *
+eis_device_get_region(struct eis_device *device, size_t index);
 
 struct eis_region *
 eis_region_ref(struct eis_region *region);
@@ -617,6 +636,18 @@ eis_region_get_user_data(struct eis_region *region);
 void
 eis_region_set_user_data(struct eis_region *region, void *user_data);
 
+uint32_t
+eis_region_get_x(struct eis_region *region);
+
+uint32_t
+eis_region_get_y(struct eis_region *region);
+
+uint32_t
+eis_region_get_width(struct eis_region *region);
+
+uint32_t
+eis_region_get_height(struct eis_region *region);
+
 /**
  * Add this device to its seat and notify the client of the device's
  * availability.