src/desktop.c

   1 /*
   2  * Copyright © 2019 Collabora, Ltd.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  * "Software"), to deal in the Software without restriction, including
   7  * without limitation the rights to use, copy, modify, merge, publish,
   8  * distribute, sublicense, and/or sell copies of the Software, and to
   9  * permit persons to whom the Software is furnished to do so, subject to
  10  * the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the
  13  * next paragraph) shall be included in all copies or substantial
  14  * portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  20  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  21  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  */
  25
  26 #include <assert.h>
  27 #include "ivi-compositor.h"
  28 #include "policy.h"
  29
  30 #include <libweston/libweston.h>
  31 #include <libweston-desktop/libweston-desktop.h>
  32
  33 #if 0
  34 static struct weston_output *
  35 get_default_output(struct weston_compositor *compositor)
  36 {
  37         if (wl_list_empty(&compositor->output_list))
  38                 return NULL;
  39
  40         return wl_container_of(compositor->output_list.next,
  41                                struct weston_output, link);
  42 }
  43 #endif
  44
  45 static void
  46 desktop_advertise_app(struct wl_listener *listener, void *data)
  47 {
  48         struct ivi_surface *surface;
  49
  50         surface = wl_container_of(listener, surface, listener_advertise_app);
  51
  52         agl_shell_desktop_advertise_application_id(surface->ivi, surface);
  53 }
  54
  55 static void
  56 desktop_ping_timeout(struct weston_desktop_client *dclient, void *userdata)
  57 {
  58         /* not supported */
  59 }
  60
  61 static void
  62 desktop_pong(struct weston_desktop_client *dclient, void *userdata)
  63 {
  64         /* not supported */
  65 }
  66
  67 static void
  68 desktop_surface_added(struct weston_desktop_surface *dsurface, void *userdata)
  69 {
  70         struct ivi_compositor *ivi = userdata;
  71         struct weston_desktop_client *dclient;
  72         struct wl_client *client;
  73         struct ivi_surface *surface;
  74         struct ivi_output *active_output = NULL;
  75         const char *app_id = NULL;
  76
  77         dclient = weston_desktop_surface_get_client(dsurface);
  78         client = weston_desktop_client_get_client(dclient);
  79
  80         surface = zalloc(sizeof *surface);
  81         if (!surface) {
  82                 wl_client_post_no_memory(client);
  83                 return;
  84         }
  85
  86         surface->view = weston_desktop_surface_create_view(dsurface);
  87         if (!surface->view) {
  88                 free(surface);
  89                 wl_client_post_no_memory(client);
  90                 return;
  91         }
  92
  93         surface->ivi = ivi;
  94         surface->dsurface = dsurface;
  95         surface->role = IVI_SURFACE_ROLE_NONE;
  96         surface->activated_by_default = false;
  97         surface->advertised_on_launch = false;
  98         surface->checked_pending = false;
  99
 100         wl_signal_init(&surface->signal_advertise_app);
 101
 102         surface->listener_advertise_app.notify = desktop_advertise_app;
 103         wl_signal_add(&surface->signal_advertise_app,
 104                       &surface->listener_advertise_app);
 105
 106         weston_desktop_surface_set_user_data(dsurface, surface);
 107
 108         if (ivi->policy && ivi->policy->api.surface_create &&
 109             !ivi->policy->api.surface_create(surface, ivi)) {
 110                 wl_client_post_no_memory(client);
 111                 return;
 112         }
 113
 114
 115         app_id = weston_desktop_surface_get_app_id(dsurface);
 116
 117         if ((active_output = ivi_layout_find_with_app_id(app_id, ivi)))
 118                 ivi_set_pending_desktop_surface_remote(active_output, app_id);
 119
 120         /* reset any caps to make sure we apply the new caps */
 121         ivi_seat_reset_caps_sent(ivi);
 122
 123         /*
 124          * We delay creating "normal" desktop surfaces until later, to
 125          * give the shell-client an oppurtunity to set the surface as a
 126          * background/panel.
 127          * Also delay the creation in order to have a valid app_id
 128          * which will be used to set the proper role.
 129          */
 130         weston_log("Added surface %p, app_id %s to pending list\n",
 131                         surface, app_id);
 132         wl_list_insert(&ivi->pending_surfaces, &surface->link);
 133
 134 }
 135
 136 static bool
 137 desktop_surface_check_last_remote_surfaces(struct ivi_compositor *ivi, enum ivi_surface_role role)
 138 {
 139         int count = 0;
 140         struct ivi_surface *surf;
 141
 142         wl_list_for_each(surf, &ivi->surfaces, link)
 143                 if (surf->role == role)
 144                         count++;
 145
 146         return (count == 1);
 147 }
 148
 149 static void
 150 desktop_surface_removed(struct weston_desktop_surface *dsurface, void *userdata)
 151 {
 152         struct ivi_surface *surface =
 153                 weston_desktop_surface_get_user_data(dsurface);
 154         struct weston_surface *wsurface =
 155                 weston_desktop_surface_get_surface(dsurface);
 156
 157         struct ivi_output *output = ivi_layout_get_output_from_surface(surface);
 158
 159         wl_list_remove(&surface->listener_advertise_app.link);
 160         surface->listener_advertise_app.notify = NULL;
 161
 162         /* special corner-case, pending_surfaces which are never activated or
 163          * being assigned an output might land here so just remove the surface;
 164          *
 165          * the DESKTOP role can happen here as well, because we can fall-back
 166          * to that when we try to determine the role type. Application that
 167          * do not set the app_id will be land here, when destroyed */
 168         if (output == NULL && (surface->role == IVI_SURFACE_ROLE_NONE ||
 169                                surface->role == IVI_SURFACE_ROLE_DESKTOP))
 170                 goto skip_output_asignment;
 171
 172         assert(output != NULL);
 173
 174         /* resize the active surface to the original size */
 175         if (surface->role == IVI_SURFACE_ROLE_SPLIT_H ||
 176             surface->role == IVI_SURFACE_ROLE_SPLIT_V) {
 177                 if (output && output->active) {
 178                         ivi_layout_desktop_resize(output->active, output->area_saved);
 179                 }
 180                 /* restore the area back so we can re-use it again if needed */
 181                 output->area = output->area_saved;
 182         }
 183
 184         /* reset the active surface as well */
 185         if (output && output->active && output->active == surface) {
 186                 output->active->view->is_mapped = false;
 187                 output->active->view->surface->is_mapped = false;
 188
 189                 weston_layer_entry_remove(&output->active->view->layer_link);
 190                 output->active = NULL;
 191         }
 192
 193         if (surface->role == IVI_SURFACE_ROLE_REMOTE &&
 194             output->type == OUTPUT_REMOTE)
 195                 ivi_destroy_waltham_destroy(surface);
 196
 197         /* check if there's a last 'remote' surface and insert a black
 198          * surface view if there's no background set for that output
 199          */
 200         if ((desktop_surface_check_last_remote_surfaces(output->ivi,
 201                 IVI_SURFACE_ROLE_REMOTE) ||
 202             desktop_surface_check_last_remote_surfaces(output->ivi,
 203                 IVI_SURFACE_ROLE_DESKTOP)) && output->type == OUTPUT_REMOTE)
 204                 if (!output->background)
 205                         insert_black_surface(output);
 206
 207
 208         if (weston_surface_is_mapped(wsurface)) {
 209                 weston_desktop_surface_unlink_view(surface->view);
 210                 weston_view_destroy(surface->view);
 211         }
 212
 213         /* invalidate agl-shell surfaces so we can re-use them when
 214          * binding again */
 215         if (surface->role == IVI_SURFACE_ROLE_PANEL) {
 216                 switch (surface->panel.edge) {
 217                 case AGL_SHELL_EDGE_TOP:
 218                         output->top = NULL;
 219                         break;
 220                 case AGL_SHELL_EDGE_BOTTOM:
 221                         output->bottom = NULL;
 222                         break;
 223                 case AGL_SHELL_EDGE_LEFT:
 224                         output->left = NULL;
 225                         break;
 226                 case AGL_SHELL_EDGE_RIGHT:
 227                         output->right = NULL;
 228                         break;
 229                 default:
 230                         assert(!"Invalid edge detected\n");
 231                 }
 232         } else if (surface->role == IVI_SURFACE_ROLE_BACKGROUND) {
 233                 output->background = NULL;
 234         }
 235
 236 skip_output_asignment:
 237         weston_log("Removed surface %p, app_id %s, role %s\n", surface,
 238                         weston_desktop_surface_get_app_id(dsurface),
 239                         ivi_layout_get_surface_role_name(surface));
 240
 241         /* we weren't added to any list if we are still with 'none' as role */
 242         if (surface->role != IVI_SURFACE_ROLE_NONE)
 243                 wl_list_remove(&surface->link);
 244
 245         free(surface);
 246 }
 247
 248 static void
 249 desktop_committed(struct weston_desktop_surface *dsurface,
 250                   int32_t sx, int32_t sy, void *userdata)
 251 {
 252         struct ivi_compositor *ivi = userdata;
 253         struct ivi_surface *surface =
 254                 weston_desktop_surface_get_user_data(dsurface);
 255         struct ivi_policy *policy = surface->ivi->policy;
 256
 257         if (policy && policy->api.surface_commited &&
 258             !policy->api.surface_commited(surface, surface->ivi))
 259                 return;
 260
 261         if (ivi->shell_client.ready && !surface->checked_pending) {
 262                 const char * app_id =   weston_desktop_surface_get_app_id(dsurface);
 263                 weston_log("Checking pending surface %p, app_id %s\n", surface,
 264                         app_id);
 265                 wl_list_remove(&surface->link);
 266                 wl_list_init(&surface->link);
 267                 ivi_check_pending_desktop_surface(surface);
 268                 surface->checked_pending = true;
 269         }
 270
 271         if (!surface->advertised_on_launch &&
 272             !wl_list_empty(&surface->ivi->desktop_clients))
 273                 wl_signal_emit(&surface->signal_advertise_app, surface);
 274
 275         weston_compositor_schedule_repaint(surface->ivi->compositor);
 276
 277         switch (surface->role) {
 278         case IVI_SURFACE_ROLE_DESKTOP:
 279         case IVI_SURFACE_ROLE_REMOTE:
 280                 ivi_layout_desktop_committed(surface);
 281                 break;
 282         case IVI_SURFACE_ROLE_POPUP:
 283                 ivi_layout_popup_committed(surface);
 284                 break;
 285         case IVI_SURFACE_ROLE_FULLSCREEN:
 286                 ivi_layout_fullscreen_committed(surface);
 287                 break;
 288         case IVI_SURFACE_ROLE_SPLIT_H:
 289         case IVI_SURFACE_ROLE_SPLIT_V:
 290                 ivi_layout_split_committed(surface);
 291                 break;
 292         case IVI_SURFACE_ROLE_NONE:
 293         case IVI_SURFACE_ROLE_BACKGROUND:
 294         case IVI_SURFACE_ROLE_PANEL:
 295         default: /* fall through */
 296                 break;
 297         }
 298 }
 299
 300 static void
 301 desktop_show_window_menu(struct weston_desktop_surface *dsurface,
 302                          struct weston_seat *seat, int32_t x, int32_t y,
 303                          void *userdata)
 304 {
 305         /* not supported */
 306 }
 307
 308 static void
 309 desktop_set_parent(struct weston_desktop_surface *dsurface,
 310                    struct weston_desktop_surface *parent, void *userdata)
 311 {
 312         /* not supported */
 313 }
 314
 315 static void
 316 desktop_move(struct weston_desktop_surface *dsurface,
 317              struct weston_seat *seat, uint32_t serial, void *userdata)
 318 {
 319         /* not supported */
 320 }
 321
 322 static void
 323 desktop_resize(struct weston_desktop_surface *dsurface,
 324                struct weston_seat *seat, uint32_t serial,
 325                enum weston_desktop_surface_edge edges, void *user_data)
 326 {
 327         /* not supported */
 328 }
 329
 330 static void
 331 desktop_fullscreen_requested(struct weston_desktop_surface *dsurface,
 332                              bool fullscreen, struct weston_output *output,
 333                              void *userdata)
 334 {
 335         /* not supported */
 336 }
 337
 338 static void
 339 desktop_maximized_requested(struct weston_desktop_surface *dsurface,
 340                             bool maximized, void *userdata)
 341 {
 342         /* not supported */
 343 }
 344
 345 static void
 346 desktop_minimized_requested(struct weston_desktop_surface *dsurface,
 347                             void *userdata)
 348 {
 349         /* not supported */
 350 }
 351
 352 static void
 353 desktop_set_xwayland_position(struct weston_desktop_surface *dsurface,
 354                               int32_t x, int32_t y, void *userdata)
 355 {
 356         /* not supported */
 357 }
 358
 359 static const struct weston_desktop_api desktop_api = {
 360         .struct_size = sizeof desktop_api,
 361         .ping_timeout = desktop_ping_timeout,
 362         .pong = desktop_pong,
 363         .surface_added = desktop_surface_added,
 364         .surface_removed = desktop_surface_removed,
 365         .committed = desktop_committed,
 366         .show_window_menu = desktop_show_window_menu,
 367         .set_parent = desktop_set_parent,
 368         .move = desktop_move,
 369         .resize = desktop_resize,
 370         .fullscreen_requested = desktop_fullscreen_requested,
 371         .maximized_requested = desktop_maximized_requested,
 372         .minimized_requested = desktop_minimized_requested,
 373         .set_xwayland_position = desktop_set_xwayland_position,
 374 };
 375
 376 int
 377 ivi_desktop_init(struct ivi_compositor *ivi)
 378 {
 379         ivi->desktop = weston_desktop_create(ivi->compositor, &desktop_api, ivi);
 380         if (!ivi->desktop) {
 381                 weston_log("Failed to create desktop globals");
 382                 return -1;
 383         }
 384
 385         return 0;
 386 }