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-rw-r--r--waltham-transmitter/transmitter-plugin/input.c1317
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diff --git a/waltham-transmitter/transmitter-plugin/input.c b/waltham-transmitter/transmitter-plugin/input.c
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+++ b/waltham-transmitter/transmitter-plugin/input.c
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+/*
+ * Copyright (C) 2017 Advanced Driver Information Technology Joint Venture GmbH
+ *
+ * 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.
+ */
+
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+
+/* for fake stuff */
+#include <math.h>
+
+#include "compositor.h"
+
+#include "plugin.h"
+#include "transmitter_api.h"
+
+/** @file
+ *
+ * This is an implementation of a remote input.
+ *
+ * Request wl_data_device_manager.get_data_device would need to be blocked,
+ * except maybe it's not necessary, we just "forget" to forward data to/from
+ * the remote wl_seat. It might still work inside the local compositor.
+ *
+ * weston_compositor_set_default_pointer_grab() will break our pointer
+ * implementation, but no in-tree code is calling it.
+ */
+
+/* XXX: all functions and variables with a name, and things marked with a
+ * comment, containing the word "fake" are mockups that need to be
+ * removed from the final implementation.
+ */
+
+static void
+pointer_focus_grab_handler(struct weston_pointer_grab *grab)
+{
+ /* No-op:
+ *
+ * Weston internal events do not change the focus.
+ */
+}
+
+static void
+pointer_motion_grab_handler(struct weston_pointer_grab *grab,
+ uint32_t time,
+ struct weston_pointer_motion_event *event)
+{
+ weston_log("Unexpected! %s(pointer=%p, ...)\n",
+ __func__, grab->pointer);
+}
+
+static void
+pointer_button_grab_handler(struct weston_pointer_grab *grab,
+ uint32_t time,
+ uint32_t button,
+ uint32_t state)
+{
+ weston_log("Unexpected! %s(pointer=%p, ...)\n",
+ __func__, grab->pointer);
+}
+
+static void
+pointer_axis_grab_handler(struct weston_pointer_grab *grab,
+ uint32_t time,
+ struct weston_pointer_axis_event *event)
+{
+ weston_log("Unexpected! %s(pointer=%p, ...)\n",
+ __func__, grab->pointer);
+}
+
+static void
+pointer_axis_source_grab_handler(struct weston_pointer_grab *grab,
+ uint32_t source)
+{
+ weston_log("Unexpected! %s(pointer=%p, ...)\n",
+ __func__, grab->pointer);
+}
+
+static void
+pointer_frame_grab_handler(struct weston_pointer_grab *grab)
+{
+ weston_log("Unexpected! %s(pointer=%p, ...)\n",
+ __func__, grab->pointer);
+}
+
+static void
+pointer_cancel_grab_handler(struct weston_pointer_grab *grab)
+{
+ weston_log("Unexpected! %s(pointer=%p, ...)\n",
+ __func__, grab->pointer);
+}
+
+/* These handlers would be called from the notify_*() functions in src/input.c.
+ * However, as we do not use the low level input notify_*() functions that
+ * backends drive, these are mostly uncalled, except the focus handler which
+ * weston core generates internally.
+ */
+static const struct weston_pointer_grab_interface pointer_grab_impl = {
+ pointer_focus_grab_handler,
+ pointer_motion_grab_handler,
+ pointer_button_grab_handler,
+ pointer_axis_grab_handler,
+ pointer_axis_source_grab_handler,
+ pointer_frame_grab_handler,
+ pointer_cancel_grab_handler,
+};
+
+static void
+keyboard_grab_key(struct weston_keyboard_grab *grab,
+ uint32_t time,
+ uint32_t key,
+ uint32_t state)
+{
+}
+
+static void
+keyboard_grab_modifiers(struct weston_keyboard_grab *grab,
+ uint32_t serial,
+ uint32_t mods_depressed,
+ uint32_t mods_latched,
+ uint32_t mods_locked,
+ uint32_t group)
+{
+}
+
+static void
+keyboard_grab_cancel(struct weston_keyboard_grab *grab)
+{
+}
+
+static const struct weston_keyboard_grab_interface keyborad_grab_impl = {
+ keyboard_grab_key,
+ keyboard_grab_modifiers,
+ keyboard_grab_cancel
+};
+
+static void
+touch_grab_down_handler(struct weston_touch_grab *grab,
+ uint32_t time,
+ int touch_id,
+ wl_fixed_t x,
+ wl_fixed_t y)
+{
+}
+
+static void
+touch_grab_up_handler(struct weston_touch_grab *grab,
+ uint32_t time,
+ int touch_id)
+{
+}
+
+static void
+touch_grab_motion_handler(struct weston_touch_grab *grab,
+ uint32_t time,
+ int touch_id,
+ wl_fixed_t x,
+ wl_fixed_t y)
+{
+}
+
+static void
+touch_grab_frame_handler(struct weston_touch_grab *grab)
+{
+}
+
+static void
+touch_grab_cancel_handler(struct weston_touch_grab *grab)
+{
+}
+
+static const struct weston_touch_grab_interface touch_grab_impl = {
+ touch_grab_down_handler,
+ touch_grab_up_handler,
+ touch_grab_motion_handler,
+ touch_grab_frame_handler,
+ touch_grab_cancel_handler,
+};
+
+
+/* The different ways to get pointer focus on a remoted surface:
+ *
+ * 1. Transmitter seat has pointer. The client has wl_pointer. Transmitter
+ * receives pointer.enter. (transmitter_seat_pointer_enter())
+ *
+ * 2. Transmitter seat has pointer. Transmitter has received pointer.enter.
+ * The client calls wl_seat.get_pointer. => send enter only on the new
+ * wl_pointer. (seat_get_pointer_handler())
+ *
+ * 3. Client has wl_pointer. Transmitter seat adds pointer capability.
+ * Transmitter receives pointer.enter. wl_pointer MUST NOT enter,
+ * specified by wl_seat.capabilities.
+ *
+ * By definition, Transmitter cannot receive pointer.enter without having
+ * pointer capability in the seat, so no other combinations are possible.
+ *
+ * The same applies to wl_keyboard and wl_touch.
+ */
+
+/* Implementor notes:
+ *
+ * The handling of all of wl_pointer, wl_keyboard and wl_touch should be
+ * similar. To make it work, we need to add a signal to each of the
+ * wl_seat.get_pointer, wl_seat.get_keyboard, and wl_seat.get_touch request
+ * handlers in Weston core. Otherwise we cannot implement the case 2 of gaining
+ * input device focus.
+ *
+ * However, weston_keyboard::focus is a weston_surface, not a weston_view, so
+ * we may be able to leverage more of the core implementation and maybe do
+ * without the wl_seat.get_keyboard signal. Weston_touch uses a weston_view, so
+ * that is similar to weston_pointer.
+ *
+ * It might be useful to convert weston_keyboard and weston_touch to use a
+ * similar thing as weston_pointer_client, in case it makes things more
+ * consistent. It might also fix issues when a client has multiple copies of a
+ * wl_keyboard or a wl_touch, but that is getting off-topic.
+ *
+ * This file shows which part of the Weston input path we skip and where we
+ * hook in. We skip everything starting from the notify_*() API used by
+ * backends, and stub out the grab handlers. Instead of actual grab handlers,
+ * we have our own network protocol events handlers. They do much of the same
+ * as normal grab handlers would do, except focus is pre-given, and we do not
+ * have weston_view for the focus surfaces, so we need to bypass core code
+ * dealing with those.
+ *
+ * Our remote seat implementation will leave many struct members unused and
+ * replicate some from weston_pointer, weston_keyboard, and weston_touch.
+ * Weston core must be kept out from the focus handling business, because we
+ * will send enter/leave events ourselves, and focus assignments are given
+ * to us from the remote, they cannot be changed at will by the local Weston.
+ */
+
+/** Callback from the protocol request handler for wl_seat.get_pointer
+ *
+ * The Weston core handler never sees focus set on the weston_pointer,
+ * so it won't send wl_pointer.enter nor set focus_client. It does call
+ * weston_pointer_ensure_pointer_client() though.
+ */
+static void
+seat_get_pointer_handler(struct wl_listener *listener, void *data)
+{
+ struct wl_resource *new_pointer = data;
+ struct weston_transmitter_seat *seat;
+ struct wl_resource *surface;
+ struct weston_pointer_client *pointer_client;
+ struct wl_client *client;
+ struct weston_pointer *pointer;
+
+ seat = wl_container_of(listener, seat, get_pointer_listener);
+ if (!seat->pointer_focus)
+ return;
+
+ client = wl_resource_get_client(new_pointer);
+ surface = seat->pointer_focus->surface->resource;
+
+ if (wl_resource_get_client(surface) != client)
+ return;
+
+ pointer = weston_seat_get_pointer(seat->base);
+ assert(pointer); /* guaranteed by having pointer_focus */
+ pointer_client = weston_pointer_get_pointer_client(pointer, client);
+
+ if (!pointer->focus_client)
+ pointer->focus_client = pointer_client;
+ else
+ assert(pointer->focus_client == pointer_client);
+
+ wl_pointer_send_enter(new_pointer, pointer->focus_serial, surface,
+ seat->pointer_surface_x, seat->pointer_surface_y);
+
+ if (wl_resource_get_version(new_pointer) >=
+ WL_POINTER_FRAME_SINCE_VERSION)
+ wl_pointer_send_frame(new_pointer);
+}
+
+static void
+transmitter_seat_create_pointer(struct weston_transmitter_seat *seat)
+{
+ struct weston_pointer *pointer;
+
+ seat->pointer_phase = 0.0;
+ seat->pointer_surface_x = wl_fixed_from_int(-1000000);
+ seat->pointer_surface_y = wl_fixed_from_int(-1000000);
+ seat->pointer_focus = NULL;
+ wl_list_init(&seat->pointer_focus_destroy_listener.link);
+
+ weston_seat_init_pointer(seat->base);
+
+ pointer = weston_seat_get_pointer(seat->base);
+
+ /* not exported:
+ * weston_pointer_set_default_grab(pointer, &pointer_grab_impl); */
+ pointer->default_grab.interface = &pointer_grab_impl;
+
+ /* Changes to local outputs are irrelevant. */
+ wl_list_remove(&pointer->output_destroy_listener.link);
+ wl_list_init(&pointer->output_destroy_listener.link);
+
+ weston_log("Transmitter created pointer=%p for seat %p\n",
+ pointer, seat->base);
+}
+
+static void
+seat_pointer_focus_destroy_handler(struct wl_listener *listener, void *data)
+{
+ struct weston_transmitter_surface *txs = data;
+ struct weston_transmitter_seat *seat;
+
+ seat = wl_container_of(listener, seat, pointer_focus_destroy_listener);
+ assert(seat->pointer_focus == txs);
+
+ seat->pointer_focus = NULL;
+}
+
+void
+transmitter_seat_pointer_enter(struct weston_transmitter_seat *seat,
+ uint32_t serial,
+ struct weston_transmitter_surface *txs,
+ wl_fixed_t surface_x,
+ wl_fixed_t surface_y)
+{
+ struct wl_client *client;
+ struct weston_pointer *pointer;
+ struct wl_list *focus_resource_list;
+ struct wl_resource *resource;
+
+ pointer = weston_seat_get_pointer(seat->base);
+ assert(pointer);
+
+ assert(txs->surface);
+ client = wl_resource_get_client(txs->surface->resource);
+
+ seat->pointer_focus = txs;
+ seat->pointer_focus_destroy_listener.notify =
+ seat_pointer_focus_destroy_handler;
+ wl_signal_add(&txs->destroy_signal,
+ &seat->pointer_focus_destroy_listener);
+
+ /* If pointer-focus gets destroyed, txs will get destroyed, the
+ * remote surface object is destroyed, and the remote will send a
+ * leave and a frame.
+ */
+
+ seat->pointer_surface_x = surface_x;
+ seat->pointer_surface_y = surface_y;
+
+ pointer->focus_serial = serial;
+
+ /* pointer->focus is not used, because it is a weston_view, while
+ * remoted surfaces have no views.
+ *
+ * pointer->x,y are not used because they are in global coordinates.
+ * Remoted surfaces are not in the global space at all, so there are
+ * no such coordinates.
+ */
+
+ if (!pointer->focus_client)
+ return;
+
+ focus_resource_list = &pointer->focus_client->pointer_resources;
+ wl_resource_for_each(resource, focus_resource_list) {
+ wl_pointer_send_enter(resource,
+ serial,
+ txs->surface->resource,
+ surface_x, surface_y);
+ }
+}
+
+void
+transmitter_seat_pointer_leave(struct weston_transmitter_seat *seat,
+ uint32_t serial,
+ struct weston_transmitter_surface *txs)
+{
+ struct weston_pointer *pointer;
+ struct wl_list *focus_resource_list;
+ struct wl_resource *surface_resource;
+ struct wl_resource *resource;
+
+ if (txs != seat->pointer_focus) {
+ weston_log("Transmitter Warning: pointer leave for %p, expected %p\n",
+ txs, seat->pointer_focus);
+ }
+
+ seat->pointer_focus = NULL;
+ wl_list_remove(&seat->pointer_focus_destroy_listener.link);
+ wl_list_init(&seat->pointer_focus_destroy_listener.link);
+
+ if (!txs)
+ return;
+ assert(txs->surface);
+ surface_resource = txs->surface->resource;
+
+ pointer = weston_seat_get_pointer(seat->base);
+ assert(pointer);
+ if (!pointer->focus_client)
+ return;
+
+ focus_resource_list = &pointer->focus_client->pointer_resources;
+ wl_resource_for_each(resource, focus_resource_list)
+ wl_pointer_send_leave(resource, serial, surface_resource);
+
+ /* Do not reset pointer->focus_client, because we need to be able
+ * to send a following 'frame' event in
+ * transmitter_seat_pointer_frame().
+ */
+}
+
+void
+transmitter_seat_pointer_motion(struct weston_transmitter_seat *seat,
+ uint32_t time,
+ wl_fixed_t surface_x,
+ wl_fixed_t surface_y)
+{
+ struct weston_pointer *pointer;
+ struct wl_list *focus_resource_list;
+ struct wl_resource *resource;
+ struct weston_transmitter_surface *txs;
+
+ pointer = weston_seat_get_pointer(seat->base);
+ assert(pointer);
+
+ seat->pointer_surface_x = surface_x;
+ seat->pointer_surface_y = surface_y;
+
+ if (!pointer->focus_client)
+ return;
+
+ txs = seat->pointer_focus;
+ if (txs)
+ assert(wl_resource_get_client(txs->surface->resource) ==
+ pointer->focus_client->client);
+
+ focus_resource_list = &pointer->focus_client->pointer_resources;
+ wl_resource_for_each(resource, focus_resource_list) {
+ wl_pointer_send_motion(resource, time,
+ surface_x, surface_y);
+ }
+}
+
+void
+transmitter_seat_pointer_button(struct weston_transmitter_seat *seat,
+ uint32_t serial,
+ uint32_t time,
+ uint32_t button,
+ uint32_t state)
+{
+ struct weston_pointer *pointer;
+ struct wl_list *focus_resource_list;
+ struct wl_resource *resource;
+ struct weston_transmitter_surface *txs;
+
+ pointer = weston_seat_get_pointer(seat->base);
+ assert(pointer);
+
+ if (!pointer->focus_client)
+ return;
+
+ txs = seat->pointer_focus;
+ if (txs)
+ assert(wl_resource_get_client(txs->surface->resource) ==
+ pointer->focus_client->client);
+
+ focus_resource_list = &pointer->focus_client->pointer_resources;
+ wl_resource_for_each(resource, focus_resource_list) {
+ wl_pointer_send_button(resource, serial, time,
+ button, state);
+ }
+}
+
+void
+transmitter_seat_pointer_axis(struct weston_transmitter_seat *seat,
+ uint32_t time,
+ uint32_t axis,
+ wl_fixed_t value)
+{
+ struct weston_pointer *pointer;
+ struct wl_list *focus_resource_list;
+ struct wl_resource *resource;
+ struct weston_transmitter_surface *txs;
+
+ pointer = weston_seat_get_pointer(seat->base);
+ assert(pointer);
+
+ if (!pointer->focus_client)
+ return;
+
+ txs = seat->pointer_focus;
+ if (txs)
+ assert(wl_resource_get_client(txs->surface->resource) ==
+ pointer->focus_client->client);
+
+ focus_resource_list = &pointer->focus_client->pointer_resources;
+ wl_resource_for_each(resource, focus_resource_list) {
+ wl_pointer_send_axis(resource, time,
+ axis, value);
+ }
+}
+
+void
+transmitter_seat_pointer_frame(struct weston_transmitter_seat *seat)
+{
+ struct weston_pointer *pointer;
+
+ pointer = weston_seat_get_pointer(seat->base);
+ if (pointer)
+ weston_pointer_send_frame(pointer);
+}
+
+void
+transmitter_seat_pointer_axis_source(struct weston_transmitter_seat *seat,
+ uint32_t axis_source)
+{
+ /* ToDo : implement axis event handling */
+}
+
+void
+transmitter_seat_pointer_axis_stop(struct weston_transmitter_seat *seat,
+ uint32_t time,
+ uint32_t axis)
+{
+ /* ToDo : implement axis event handling */
+}
+
+void
+transmitter_seat_pointer_axis_discrete(struct weston_transmitter_seat *seat,
+ uint32_t axis,
+ int32_t discrete)
+{
+ /* ToDo : implement axis event handling */
+}
+
+static void
+transmitter_seat_create_keyboard(struct weston_transmitter_seat *seat)
+{
+ struct weston_keyboard *keyboard;
+
+ seat->keyboard_focus = NULL;
+ weston_seat_init_keyboard(seat->base, NULL);
+
+ keyboard = weston_seat_get_keyboard(seat->base);
+
+ keyboard->default_grab.interface = &keyborad_grab_impl;
+
+ weston_log("Transmitter created keyboard=%p for seat %p\n",
+ keyboard, seat->base);
+}
+
+static void
+transmitter_seat_keyboard_enter(struct weston_transmitter_seat *seat,
+ uint32_t serial,
+ struct weston_transmitter_surface *txs,
+ struct wl_array *keys)
+{
+ struct weston_keyboard *keyboard;
+ struct wl_resource *resource = NULL;
+ struct wl_resource *surface_resource;
+
+ keyboard = weston_seat_get_keyboard(seat->base);
+ assert(keyboard);
+
+ assert(txs->surface);
+ surface_resource = txs->surface->resource;
+
+ seat->keyboard_focus = txs;
+ wl_array_copy(&keyboard->keys, keys);
+
+ wl_resource_for_each(resource, &keyboard->resource_list) {
+ if (wl_resource_get_client(resource) == wl_resource_get_client(surface_resource)) {
+ wl_keyboard_send_enter(resource,
+ serial,
+ surface_resource,
+ &keyboard->keys);
+ }
+ }
+}
+
+static void
+transmitter_seat_keyboard_leave(struct weston_transmitter_seat *seat,
+ uint32_t serial,
+ struct weston_transmitter_surface *txs)
+{
+ struct weston_keyboard *keyboard;
+ struct wl_resource *resource = NULL;
+ struct wl_resource *surface_resource;
+
+ keyboard = weston_seat_get_keyboard(seat->base);
+ assert(keyboard);
+
+ assert(txs->surface);
+ surface_resource = txs->surface->resource;
+
+ wl_resource_for_each(resource, &keyboard->resource_list) {
+ if (wl_resource_get_client(resource) == wl_resource_get_client(surface_resource)) {
+ wl_keyboard_send_leave(resource,
+ serial,
+ surface_resource);
+ }
+ }
+}
+
+static void
+transmitter_seat_keyboard_key(struct weston_transmitter_seat *seat,
+ uint32_t serial,
+ uint32_t time,
+ uint32_t key,
+ uint32_t state)
+{
+ struct weston_keyboard *keyboard;
+ struct wl_resource *resource = NULL;
+
+ keyboard = weston_seat_get_keyboard(seat->base);
+ assert(keyboard);
+
+ wl_resource_for_each(resource, &keyboard->resource_list) {
+ if (wl_resource_get_client(resource) ==
+ wl_resource_get_client(seat->keyboard_focus->surface->resource)) {
+ wl_keyboard_send_key(resource,
+ serial,
+ time,
+ key,
+ state);
+ }
+ }
+}
+
+static void
+transmitter_seat_create_touch(struct weston_transmitter_seat *seat)
+{
+ struct weston_touch *touch;
+
+ seat->touch_focus = NULL;
+ weston_seat_init_touch(seat->base);
+
+ touch = weston_seat_get_touch(seat->base);
+
+ touch->default_grab.interface = &touch_grab_impl;
+
+ weston_log("Transmitter created touch=%p for seat %p\n",
+ touch, seat->base);
+}
+
+static void
+transmitter_seat_touch_down (struct weston_transmitter_seat *seat,
+ uint32_t serial,
+ uint32_t time,
+ struct weston_transmitter_surface *txs,
+ int32_t touch_id,
+ wl_fixed_t x,
+ wl_fixed_t y)
+{
+ struct weston_touch *touch;
+ struct wl_resource *resource = NULL;
+ struct wl_resource *surface_resource;
+
+ touch = weston_seat_get_touch(seat->base);
+ assert(touch);
+
+ assert(txs->surface);
+ surface_resource = txs->surface->resource;
+
+ seat->touch_focus = txs;
+
+ wl_resource_for_each(resource, &touch->resource_list) {
+ if (wl_resource_get_client(resource) == wl_resource_get_client(surface_resource)) {
+ wl_touch_send_down(resource, serial, time,
+ surface_resource,
+ touch_id, x, y);
+ }
+ }
+}
+
+static void
+transmitter_seat_touch_up (struct weston_transmitter_seat *seat,
+ uint32_t serial,
+ uint32_t time,
+ int32_t touch_id)
+{
+ struct weston_touch *touch;
+ struct wl_resource *resource = NULL;
+
+ touch = weston_seat_get_touch(seat->base);
+ assert(touch);
+
+ wl_resource_for_each(resource, &touch->resource_list) {
+ if (wl_resource_get_client(resource) ==
+ wl_resource_get_client(seat->touch_focus->surface->resource)) {
+ wl_touch_send_up(resource, serial, time, touch_id);
+ }
+ }
+}
+
+static void
+transmitter_seat_touch_motion (struct weston_transmitter_seat *seat,
+ uint32_t time,
+ int32_t touch_id,
+ wl_fixed_t x,
+ wl_fixed_t y)
+{
+ struct weston_touch *touch;
+ struct wl_resource *resource = NULL;
+
+ touch = weston_seat_get_touch(seat->base);
+ assert(touch);
+
+ wl_resource_for_each(resource, &touch->resource_list) {
+ if (wl_resource_get_client(resource) ==
+ wl_resource_get_client(seat->touch_focus->surface->resource)) {
+ wl_touch_send_motion(resource, time, touch_id, x, y);
+ }
+ }
+}
+
+static void
+transmitter_seat_touch_frame (struct weston_transmitter_seat *seat)
+{
+ struct weston_touch *touch;
+ struct wl_resource *resource = NULL;
+
+ touch = weston_seat_get_touch(seat->base);
+ assert(touch);
+
+ wl_resource_for_each(resource, &touch->resource_list) {
+ if (wl_resource_get_client(resource) ==
+ wl_resource_get_client(seat->touch_focus->surface->resource)) {
+ wl_touch_send_frame(resource);
+ }
+ }
+}
+
+static void
+transmitter_seat_touch_cancel (struct weston_transmitter_seat *seat)
+{
+ struct weston_touch *touch;
+ struct wl_resource *resource = NULL;
+
+ touch = weston_seat_get_touch(seat->base);
+ assert(touch);
+
+ wl_resource_for_each(resource, &touch->resource_list) {
+ if (wl_resource_get_client(resource) ==
+ wl_resource_get_client(seat->touch_focus->surface->resource)) {
+ wl_touch_send_cancel(resource);
+ }
+ }
+}
+
+static char *
+make_seat_name(struct weston_transmitter_remote *remote, const char *name)
+{
+ char *str;
+
+ if (asprintf(&str, "transmitter-%s-%s", remote->addr, name) < 0)
+ return NULL;
+
+ return str;
+}
+
+void
+transmitter_seat_destroy(struct weston_transmitter_seat *seat)
+{
+ wl_list_remove(&seat->link);
+
+ weston_log("Transmitter destroy seat=%p\n", seat->base);
+
+ wl_list_remove(&seat->get_pointer_listener.link);
+ wl_list_remove(&seat->pointer_focus_destroy_listener.link);
+
+ if (seat->pointer_timer)
+ wl_event_source_remove(seat->pointer_timer);
+
+ free(seat);
+}
+
+static void
+pointer_handle_enter(struct wthp_pointer *wthp_pointer,
+ uint32_t serial,
+ struct wthp_surface *surface,
+ wth_fixed_t surface_x,
+ wth_fixed_t surface_y)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_pointer);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+ struct weston_transmitter_surface *txs;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ wl_list_for_each(txs, &remote->surface_list, link)
+ {
+ if (txs->wthp_surf == surface) {
+ if (txs != seat->pointer_focus)
+ transmitter_seat_pointer_leave(seat, serial, seat->pointer_focus);
+ transmitter_seat_pointer_enter(seat, serial, txs,
+ surface_x, surface_y);
+ }
+ }
+}
+
+static void
+pointer_handle_leave(struct wthp_pointer *wthp_pointer,
+ uint32_t serial,
+ struct wthp_surface *surface)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_pointer);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+ struct weston_transmitter_surface *txs;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ wl_list_for_each(txs, &remote->surface_list, link)
+ {
+ if (txs->wthp_surf == surface) {
+ transmitter_seat_pointer_leave(seat, serial, txs);
+ }
+ }
+}
+
+static void
+pointer_handle_motion(struct wthp_pointer *wthp_pointer,
+ uint32_t time,
+ wth_fixed_t surface_x,
+ wth_fixed_t surface_y)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_pointer);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ transmitter_seat_pointer_motion(seat, time,
+ surface_x,
+ surface_y);
+}
+
+static void
+pointer_handle_button(struct wthp_pointer *wthp_pointer,
+ uint32_t serial,
+ uint32_t time,
+ uint32_t button,
+ uint32_t state)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_pointer);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ transmitter_seat_pointer_button(seat, serial,
+ time, button,
+ state);
+}
+
+static void
+pointer_handle_axis(struct wthp_pointer *wthp_pointer,
+ uint32_t time,
+ uint32_t axis, wth_fixed_t value)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_pointer);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ transmitter_seat_pointer_axis(seat, time,
+ axis, value);
+}
+
+static void
+pointer_handle_frame(struct wthp_pointer *wthp_pointer)
+{
+ /* ToDo : implement pointer handle frame */
+}
+
+static void
+pointer_handle_axis_source(struct wthp_pointer *wthp_pointer,
+ uint32_t axis_source)
+{
+ /* ToDo : implement pointer handle axis source */
+}
+
+static void
+pointer_handle_axis_stop(struct wthp_pointer *wthp_pointer,
+ uint32_t time,
+ uint32_t axis)
+{
+ /* ToDo : implement pointer handle axis stop */
+}
+
+static void
+pointer_handle_axis_discrete(struct wthp_pointer *wthp_pointer,
+ uint32_t axis,
+ int32_t discrete)
+{
+ /* ToDo : implement pointer handle axis discrete */
+}
+
+static const struct wthp_pointer_listener pointer_listener = {
+ pointer_handle_enter,
+ pointer_handle_leave,
+ pointer_handle_motion,
+ pointer_handle_button,
+ pointer_handle_axis,
+ pointer_handle_frame,
+ pointer_handle_axis_source,
+ pointer_handle_axis_stop,
+ pointer_handle_axis_discrete
+};
+
+static void
+keyboard_handle_keymap(struct wthp_keyboard * wthp_keyboard,
+ uint32_t format,
+ uint32_t keymap_sz,
+ void * keymap)
+{
+ /* ToDo : implement keyboard handle keymap */
+}
+
+static void
+keyboard_handle_enter(struct wthp_keyboard *wthp_keyboard,
+ uint32_t serial,
+ struct wthp_surface *surface,
+ struct wth_array *keys)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_keyboard);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+ struct weston_transmitter_surface *txs;
+ struct wl_array *wl_key = (struct wl_array *)malloc(sizeof(struct wl_array));
+
+ wl_key->size = keys->size;
+ wl_key->alloc = keys->alloc;
+ wl_key->data = keys->data;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ wl_list_for_each(txs, &remote->surface_list, link)
+ {
+ if (txs->wthp_surf == surface) {
+ //transmitter_seat_keyboard_enter(seat, serial, txs, keys);
+ transmitter_seat_keyboard_enter(seat, serial, txs, wl_key);
+ }
+ }
+ free(wl_key);
+}
+
+static void
+keyboard_handle_leave(struct wthp_keyboard *wthp_keyboard,
+ uint32_t serial,
+ struct wthp_surface *surface)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_keyboard);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+ struct weston_transmitter_surface *txs;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ wl_list_for_each(txs, &remote->surface_list, link)
+ {
+ if (txs->wthp_surf == surface) {
+ transmitter_seat_keyboard_leave(seat, serial, txs);
+ }
+ }
+}
+
+static void
+keyboard_handle_key(struct wthp_keyboard *wthp_keyboard,
+ uint32_t serial,
+ uint32_t time,
+ uint32_t key,
+ uint32_t state)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_keyboard);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ transmitter_seat_keyboard_key(seat, serial, time, key, state);
+}
+
+static void
+keyboard_handle_modifiers(struct wthp_keyboard *wthp_keyboard,
+ uint32_t serial,
+ uint32_t mods_depressed,
+ uint32_t mods_latched,
+ uint32_t mods_locked,
+ uint32_t group)
+{
+ weston_log("keyboard_handle_modifiers\n");
+}
+
+static void
+keyboard_handle_repeat_info(struct wthp_keyboard *wthp_keyboard,
+ int32_t rate,
+ int32_t delay)
+{
+ weston_log("keyboard_handle_repeat_info\n");
+}
+
+static const struct wthp_keyboard_listener keyboard_listener = {
+ keyboard_handle_keymap,
+ keyboard_handle_enter,
+ keyboard_handle_leave,
+ keyboard_handle_key,
+ keyboard_handle_modifiers,
+ keyboard_handle_repeat_info
+};
+
+static void
+touch_handle_down (struct wthp_touch * wthp_touch,
+ uint32_t serial,
+ uint32_t time,
+ struct wthp_surface * surface,
+ int32_t id,
+ wth_fixed_t x,
+ wth_fixed_t y)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_touch);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+ struct weston_transmitter_surface *txs;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ wl_list_for_each(txs, &remote->surface_list, link)
+ {
+ if (txs->wthp_surf == surface) {
+ transmitter_seat_touch_down(seat, serial, time,
+ txs, id, x, y);
+ }
+ }
+}
+
+static void
+touch_handle_up (struct wthp_touch * wthp_touch,
+ uint32_t serial,
+ uint32_t time,
+ int32_t id)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_touch);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ transmitter_seat_touch_up(seat, serial, time, id);
+}
+
+static void
+touch_handle_motion (struct wthp_touch * wthp_touch,
+ uint32_t time,
+ int32_t id,
+ wth_fixed_t x,
+ wth_fixed_t y)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_touch);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ transmitter_seat_touch_motion(seat, time, id, x, y);
+}
+
+
+static void
+touch_handle_frame (struct wthp_touch * wthp_touch)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_touch);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ transmitter_seat_touch_frame(seat);
+}
+
+static void
+touch_handle_cancel (struct wthp_touch * wthp_touch)
+{
+ struct waltham_display *dpy =
+ wth_object_get_user_data((struct wth_object *)wthp_touch);
+ struct weston_transmitter_remote *remote = dpy->remote;
+ struct wl_list *seat_list = &remote->seat_list;
+ struct weston_transmitter_seat *seat;
+
+ seat = wl_container_of(seat_list->next, seat, link);
+
+ transmitter_seat_touch_cancel(seat);
+}
+
+
+static const struct wthp_touch_listener touch_listener = {
+ touch_handle_down,
+ touch_handle_up,
+ touch_handle_motion,
+ touch_handle_frame,
+ touch_handle_cancel
+};
+
+void
+seat_capabilities(struct wthp_seat *wthp_seat,
+ enum wthp_seat_capability caps)
+{
+ struct waltham_display *dpy = wth_object_get_user_data((struct wth_object *)wthp_seat);
+
+ weston_log("seat_capabilities\n");
+
+ if ((caps & WTHP_SEAT_CAPABILITY_POINTER) && !dpy->pointer)
+ {
+ weston_log("WTHP_SEAT_CAPABILITY_POINTER\n");
+ dpy->pointer = wthp_seat_get_pointer(dpy->seat);
+ wthp_pointer_set_listener(dpy->pointer, &pointer_listener, dpy);
+ }
+ if ((caps & WTHP_SEAT_CAPABILITY_KEYBOARD) && !dpy->keyboard)
+ {
+ weston_log("WTHP_SEAT_CAPABILITY_KEYBOARD\n");
+ dpy->keyboard = wthp_seat_get_keyboard(dpy->seat);
+ wthp_keyboard_set_listener(dpy->keyboard, &keyboard_listener, dpy);
+ }
+ if ((caps & WTHP_SEAT_CAPABILITY_TOUCH) && !dpy->touch)
+ {
+ weston_log("WTHP_SEAT_CAPABILITY_TOUCH\n");
+ dpy->touch = wthp_seat_get_touch(dpy->seat);
+ wthp_touch_set_listener(dpy->touch, &touch_listener, dpy);
+ }
+}
+
+int
+transmitter_remote_create_seat(struct weston_transmitter_remote *remote)
+{
+ struct weston_transmitter_seat *seat = NULL;
+ char *name = NULL;
+ struct weston_seat *weston_seat = NULL;
+
+ seat = zalloc(sizeof *seat);
+ if (!seat)
+ goto fail;
+
+ wl_list_init(&seat->get_pointer_listener.link);
+ wl_list_init(&seat->pointer_focus_destroy_listener.link);
+
+ /* XXX: get the name from remote */
+ name = make_seat_name(remote, "default");
+ if (!name)
+ goto fail;
+
+
+ if (wl_list_empty(&remote->transmitter->compositor->seat_list)) {
+ weston_seat = zalloc(sizeof *weston_seat);
+ if (!weston_seat)
+ goto fail;
+
+ weston_seat_init(weston_seat, remote->transmitter->compositor, name);
+ seat->base = weston_seat;
+ weston_log("Transmitter created seat=%p \n", &seat->base);
+ } else {
+ wl_list_for_each(weston_seat, &remote->transmitter->compositor->seat_list, link) {
+ weston_log("Transmitter weston_seat %p\n", weston_seat);
+ seat->base = weston_seat;
+ }
+ }
+
+ free(name);
+#if DEBUG
+ weston_seat_init(&seat->base, remote->transmitter->compositor, name);
+ free(name);
+
+ /* Hide the weston_seat from the rest of Weston, there are too many
+ * things making assumptions:
+ * - backends assume they control all seats
+ * - shells assume they control all input foci
+ * We do not want either to mess with our seat.
+ */
+ wl_list_remove(&seat->base.link);
+ wl_list_init(&seat->base.link);
+
+ /* The weston_compositor::seat_created_signal has already been
+ * emitted. Shells use it to subscribe to focus changes, but we should
+ * never handle focus with weston core... except maybe with keyboard.
+ * text-backend.c will also act on the new seat.
+ * It is possible weston_seat_init() needs to be split to fix this
+ * properly.
+ */
+
+ weston_log("Transmitter created seat=%p '%s'\n",
+ &seat->base, seat->base.seat_name);
+#endif
+
+ /* XXX: mirror remote capabilities */
+ transmitter_seat_create_pointer(seat);
+ transmitter_seat_create_keyboard(seat);
+ transmitter_seat_create_touch(seat);
+
+ wl_list_insert(&remote->seat_list, &seat->link);
+
+ return 0;
+
+fail:
+ free(seat);
+ free(name);
+
+ return -1;
+}
+
+static void
+fake_pointer_get_position(struct weston_transmitter_seat *seat, double step,
+ wl_fixed_t *x, wl_fixed_t *y)
+{
+ double s, c;
+
+ seat->pointer_phase += step;
+ while (seat->pointer_phase > 2.0 * M_PI)
+ seat->pointer_phase -= 2.0 * M_PI;
+
+ sincos(seat->pointer_phase, &s, &c);
+ *x = wl_fixed_from_double(100.0 + 50.0 * c);
+ *y = wl_fixed_from_double(100.0 + 50.0 * s);
+}
+
+static int
+fake_pointer_timer_handler(void *data)
+{
+ struct weston_transmitter_seat *seat = data;
+ wl_fixed_t x, y;
+ uint32_t time;
+
+ time = weston_compositor_get_time();
+
+ fake_pointer_get_position(seat, 18.0 / 180.0 * M_PI, &x, &y);
+ transmitter_seat_pointer_motion(seat, time, x, y);
+ transmitter_seat_pointer_frame(seat);
+
+ wl_event_source_timer_update(seat->pointer_timer, 100);
+
+ return 0;
+}
+
+int
+transmitter_seat_fake_pointer_input(struct weston_transmitter_seat *seat,
+ struct weston_transmitter_surface *txs)
+{
+ struct wl_event_loop *loop;
+ wl_fixed_t x, y;
+ uint32_t serial = 5;
+
+ /* remove focus from earlier surface */
+ transmitter_seat_pointer_leave(seat, serial++, seat->pointer_focus);
+ transmitter_seat_pointer_frame(seat);
+
+ /* set pointer focus to surface */
+ fake_pointer_get_position(seat, 0.0, &x, &y);
+ transmitter_seat_pointer_enter(seat, serial++, txs, x, y);
+ transmitter_seat_pointer_frame(seat);
+
+ if (!seat->pointer_timer) {
+ /* schedule timer for motion */
+ loop = wl_display_get_event_loop(seat->base->compositor->wl_display);
+ seat->pointer_timer = wl_event_loop_add_timer(loop,
+ fake_pointer_timer_handler, seat);
+ wl_event_source_timer_update(seat->pointer_timer, 100);
+ }
+
+ /* XXX: if the now focused surface disappears, we should call
+ * transmitter_seat_pointer_leave() as part of the mockup. Otherwise
+ * you get a "Transmitter Warning: no pointer->focus_client?".
+ */
+
+ return 0;
+}