virtual-pointer: Add request for mapping to specific output

include/wlr/types/wlr_virtual_pointer_v1.h

@@ -13,6 +13,7 @@
 #include <wayland-server-protocol.h>
 #include <wlr/interfaces/wlr_input_device.h>
 #include <wlr/interfaces/wlr_pointer.h>
+#include <wlr/interfaces/wlr_output.h>
 
 struct wlr_virtual_pointer_manager_v1 {
 	struct wl_global *global;
@@ -45,6 +46,7 @@ struct wlr_virtual_pointer_v1_new_pointer_event {
 	struct wlr_virtual_pointer_v1 *new_pointer;
 	/** Suggested by client; may be NULL. */
 	struct wlr_seat *suggested_seat;
+	struct wlr_output *suggested_output;
 };
 
 struct wlr_virtual_pointer_manager_v1* wlr_virtual_pointer_manager_v1_create(

protocol/wlr-virtual-pointer-unstable-v1.xml

@@ -23,7 +23,7 @@
     DEALINGS IN THE SOFTWARE.
   </copyright>
 
-  <interface name="zwlr_virtual_pointer_v1" version="1">
+  <interface name="zwlr_virtual_pointer_v1" version="2">
     <description summary="virtual pointer">
       This protocol allows clients to emulate a physical pointer device. The
       requests are mostly mirror opposites of those specified in wl_pointer.
@@ -118,7 +118,7 @@
     </request>
   </interface>
 
-  <interface name="zwlr_virtual_pointer_manager_v1" version="1">
+  <interface name="zwlr_virtual_pointer_manager_v1" version="2">
     <description summary="virtual pointer manager">
       This object allows clients to create individual virtual pointer objects.
     </description>
@@ -135,5 +135,18 @@
     <request name="destroy" type="destructor" since="1">
       <description summary="destroy the virtual pointer manager"/>
     </request>
+
+    <!-- Version 2 additions -->
+    <request name="create_virtual_pointer_with_output" since="2">
+      <description summary="Create a new virtual pointer">
+        Creates a new virtual pointer. The seat and the output arguments are
+        optional. If the seat argument is set, the compositor should assign the
+        input device to the requested seat. If the output argument is set, the
+        compositor should map the input device to the requested output.
+      </description>
+      <arg name="seat" type="object" interface="wl_seat" allow-null="true"/>
+      <arg name="output" type="object" interface="wl_output" allow-null="true"/>
+      <arg name="id" type="new_id" interface="zwlr_virtual_pointer_v1"/>
+    </request>
   </interface>
 </protocol>

types/wlr_virtual_pointer_v1.c

@@ -233,9 +233,10 @@ static struct wlr_virtual_pointer_manager_v1 *manager_from_resource(
 	return wl_resource_get_user_data(resource);
 }
 
-static void virtual_pointer_manager_create_virtual_pointer(
+static void virtual_pointer_manager_create_virtual_pointer_with_output(
 		struct wl_client *client, struct wl_resource *resource,
-		struct wl_resource *seat, uint32_t id) {
+		struct wl_resource *seat, struct wl_resource *output,
+		uint32_t id) {
 	struct wlr_virtual_pointer_manager_v1 *manager = manager_from_resource(resource);
 
 	struct wlr_virtual_pointer_v1 *virtual_pointer = calloc(1,
@@ -281,6 +282,11 @@ static void virtual_pointer_manager_create_virtual_pointer(
 		event.suggested_seat = seat_client->seat;
 	}
 
+	if (output) {
+		struct wlr_output *wlr_output = wlr_output_from_resource(output);
+		event.suggested_output = wlr_output;
+	}
+
 	virtual_pointer->input_device.pointer = pointer;
 	virtual_pointer->resource = pointer_resource;
 	wl_signal_init(&virtual_pointer->events.destroy);
@@ -289,6 +295,12 @@ static void virtual_pointer_manager_create_virtual_pointer(
 	wlr_signal_emit_safe(&manager->events.new_virtual_pointer, &event);
 }
 
+static void virtual_pointer_manager_create_virtual_pointer(
+		struct wl_client *client, struct wl_resource *resource,
+		struct wl_resource *seat, uint32_t id) {
+	virtual_pointer_manager_create_virtual_pointer_with_output(client,
+			resource, seat, NULL, id);
+}
 static void virtual_pointer_manager_destroy(struct wl_client *client,
 		struct wl_resource *resource) {
 	wl_resource_destroy(resource);
@@ -296,6 +308,7 @@ static void virtual_pointer_manager_destroy(struct wl_client *client,
 
 static const struct zwlr_virtual_pointer_manager_v1_interface manager_impl = {
 	.create_virtual_pointer = virtual_pointer_manager_create_virtual_pointer,
+	.create_virtual_pointer_with_output = virtual_pointer_manager_create_virtual_pointer_with_output,
 	.destroy = virtual_pointer_manager_destroy,
 };
 
@@ -341,7 +354,7 @@ struct wlr_virtual_pointer_manager_v1* wlr_virtual_pointer_manager_v1_create(
 	wl_signal_init(&manager->events.new_virtual_pointer);
 	wl_signal_init(&manager->events.destroy);
 	manager->global = wl_global_create(display,
-		&zwlr_virtual_pointer_manager_v1_interface, 1, manager,
+		&zwlr_virtual_pointer_manager_v1_interface, 2, manager,
 		virtual_pointer_manager_bind);
 	if (!manager->global) {
 		free(manager);