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diff --git a/include/wth-receiver-seat.h b/include/wth-receiver-seat.h
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+/*
+ * Copyright © 2019 Advanced Driver Information Technology GmbH
+ * Copyright © 2020 Collabora, Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef WTH_SERVER_WALTHAM_SEAT_H_
+#define WTH_SERVER_WALTHAM_SEAT_H_
+
+struct pointer;
+struct touch;
+struct window;
+struct receiver;
+struct client;
+
+struct wthp_seat;
+
+enum wthp_seat_capability {
+ /**
+ * the seat has pointer devices
+ */
+ WTHP_SEAT_CAPABILITY_POINTER = 1,
+ /**
+ * the seat has one or more keyboards
+ */
+ WTHP_SEAT_CAPABILITY_KEYBOARD = 2,
+ /**
+ * the seat has touch devices
+ */
+ WTHP_SEAT_CAPABILITY_TOUCH = 4,
+};
+
+
+/* wthp_seat protocol object */
+struct seat {
+ struct wthp_seat *obj;
+ struct client *client;
+ struct pointer *pointer;
+ struct keyboard *keyboard;
+ struct touch *touch;
+ struct wl_list link; /* struct client::seat_list */
+};
+
+/* wthp_pointer protocol object */
+struct pointer {
+ struct wthp_pointer *obj;
+ struct seat *seat;
+ struct wl_list link; /* struct client::pointer_list */
+};
+
+/* wthp_keyboard protocol object */
+struct keyboard {
+ struct wthp_keyboard *obj;
+ struct seat *seat;
+ struct wl_list link; /* struct client::keyboard_list */
+};
+
+/* wthp_touch protocol object */
+struct touch {
+ struct wthp_touch *obj;
+ struct seat *seat;
+ struct wl_list link; /* struct client::touch_list */
+};
+
+
+/**
+* waltham_pointer_enter
+*
+* Send pointer enter event received from weston to waltham client
+*
+* @param names struct window *window
+* uint32_t serial
+* wl_fixed_t sx
+* wl_fixed_t sy
+* @param value window - window information
+* serial - serial number of the enter event
+* sx - surface-local x coordinate
+* sy - surface-local y coordinate
+* @return none
+*/
+void waltham_pointer_enter(struct window *window, uint32_t serial,
+ wl_fixed_t sx, wl_fixed_t sy);
+
+/**
+* waltham_pointer_leave
+*
+* Send pointer leave event received from weston to waltham client
+*
+* @param names struct window *window
+* uint32_t serial
+* @param value window - window information
+* serial - serial number of the leave event
+* @return none
+*/
+void waltham_pointer_leave(struct window *window, uint32_t serial);
+
+/**
+* waltham_pointer_motion
+*
+* Send pointer motion event received from weston to waltham client
+*
+* @param names struct window *window
+* uint32_t time
+* wl_fixed_t sx
+* wl_fixed_t sy
+* @param value window - window information
+* time - timestamp with millisecond granularity
+* sx - surface-local x coordinate
+* sy - surface-local y coordinate
+* @return none
+*/
+void waltham_pointer_motion(struct window *window, uint32_t time,
+ wl_fixed_t sx, wl_fixed_t sy);
+
+/**
+* waltham_pointer_button
+*
+* Send pointer button event received from weston to waltham client
+*
+* @param names struct window *window
+* uint32_t serial
+* uint32_t time
+* uint32_t button
+* uint32_t state
+* @param value window - window information
+* serial - serial number of the button event
+* time - timestamp with millisecond granularity
+* button - button that produced the event
+* state - physical state of the button
+* @return none
+*/
+void waltham_pointer_button(struct window *window, uint32_t serial,
+ uint32_t time, uint32_t button,
+ uint32_t state);
+
+/**
+* waltham_pointer_axis
+*
+* Send pointer axis event received from weston to waltham client
+*
+* @param names struct window *window
+* uint32_t time
+* uint32_t axis
+* wl_fixed_t value
+* @param value window - window information
+* time - timestamp with millisecond granularity
+* axis - axis type
+* value - length of vector in surface-local coordinate space
+* @return none
+*/
+void waltham_pointer_axis(struct window *window, uint32_t time,
+ uint32_t axis, wl_fixed_t value);
+
+/**
+* waltham_touch_down
+*
+* Send touch down event received from weston to waltham client
+*
+* @param names struct window *window
+* uint32_t serial
+* uint32_t time
+* int32_t id
+* wl_fixed_t x_w
+* wl_fixed_t y_w
+* @param value window - window information
+* serial - serial number of the touch down event
+* time - timestamp with millisecond granularity
+* id - the unique ID of this touch point
+* x_w - surface-local x coordinate
+* y_w - surface-local y coordinate
+* @return none
+*/
+void waltham_touch_down(struct window *window, uint32_t serial,
+ uint32_t time, int32_t id,
+ wl_fixed_t x_w, wl_fixed_t y_w);
+
+/**
+* waltham_touch_up
+*
+* Send touch up event received from weston to waltham client
+*
+* @param names struct window *window
+* uint32_t serial
+* uint32_t time
+* int32_t id
+* @param value window - window information
+* serial - serial number of the touch up event
+* time - timestamp with millisecond granularity
+* id - the unique ID of this touch point
+* @return none
+*/
+void waltham_touch_up(struct window *window, uint32_t serial,
+ uint32_t time, int32_t id);
+
+/**
+* waltham_touch_motion
+*
+* Send touch motion event received from weston to waltham client
+*
+* @param names struct window *window
+* uint32_t time
+* int32_t id
+* wl_fixed_t x_w
+* wl_fixed_t y_w
+* @param value window - window information
+* time - timestamp with millisecond granularity
+* id - the unique ID of this touch point
+* x_w - surface-local x coordinate
+* y_w - surface-local y coordinate
+* @return none
+*/
+void waltham_touch_motion(struct window *window, uint32_t time,
+ int32_t id, wl_fixed_t x_w, wl_fixed_t y_w);
+
+/**
+* waltham_touch_frame
+*
+* Send touch frame event received from weston to waltham client
+*
+* @param names struct window *window
+* @param value window - window information
+* @return none
+*/
+void waltham_touch_frame(struct window *window);
+
+/**
+* waltham_touch_cancel
+*
+* Send touch cancel event received from weston to waltham client
+*
+* @param names struct window *window
+* @param value window - window information
+* @return none
+*/
+void waltham_touch_cancel(struct window *window);
+
+void
+client_bind_seat(struct client *c, struct wthp_seat *obj);
+
+void
+seat_send_updated_caps(struct seat *seat);
+
+#endif