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         wl_list_init(&surface->link);
 100
 101         wl_signal_init(&surface->signal_advertise_app);
 102
 103         surface->listener_advertise_app.notify = desktop_advertise_app;
 104         wl_signal_add(&surface->signal_advertise_app,
 105                       &surface->listener_advertise_app);
 106
 107         weston_desktop_surface_set_user_data(dsurface, surface);
 108
 109         if (ivi->policy && ivi->policy->api.surface_create &&
 110             !ivi->policy->api.surface_create(surface, ivi)) {
 111                 wl_client_post_no_memory(client);
 112                 return;
 113         }
 114
 115
 116         app_id = weston_desktop_surface_get_app_id(dsurface);
 117
 118         if ((active_output = ivi_layout_find_with_app_id(app_id, ivi)))
 119                 ivi_set_pending_desktop_surface_remote(active_output, app_id);
 120
 121         /* reset any caps to make sure we apply the new caps */
 122         ivi_seat_reset_caps_sent(ivi);
 123
 124         /*
 125          * We delay creating "normal" desktop surfaces until later, to
 126          * give the shell-client an oppurtunity to set the surface as a
 127          * background/panel.
 128          * Also delay the creation in order to have a valid app_id
 129          * which will be used to set the proper role.
 130          */
 131         weston_log("Added surface %p, app_id %s to pending list\n",
 132                         surface, app_id);
 133         wl_list_insert(&ivi->pending_surfaces, &surface->link);
 134
 135 }
 136
 137 static bool
 138 desktop_surface_check_last_remote_surfaces(struct ivi_compositor *ivi, enum ivi_surface_role role)
 139 {
 140         int count = 0;
 141         struct ivi_surface *surf;
 142
 143         wl_list_for_each(surf, &ivi->surfaces, link)
 144                 if (surf->role == role)
 145                         count++;
 146
 147         return (count == 1);
 148 }
 149
 150 static void
 151 desktop_surface_removed(struct weston_desktop_surface *dsurface, void *userdata)
 152 {
 153         struct ivi_surface *surface =
 154                 weston_desktop_surface_get_user_data(dsurface);
 155         struct weston_surface *wsurface =
 156                 weston_desktop_surface_get_surface(dsurface);
 157
 158         struct ivi_output *output = ivi_layout_get_output_from_surface(surface);
 159
 160         wl_list_remove(&surface->listener_advertise_app.link);
 161         surface->listener_advertise_app.notify = NULL;
 162
 163         /* special corner-case, pending_surfaces which are never activated or
 164          * being assigned an output might land here so just remove the surface;
 165          *
 166          * the DESKTOP role can happen here as well, because we can fall-back
 167          * to that when we try to determine the role type. Application that
 168          * do not set the app_id will be land here, when destroyed */
 169         if (output == NULL && (surface->role == IVI_SURFACE_ROLE_NONE ||
 170                                surface->role == IVI_SURFACE_ROLE_DESKTOP))
 171                 goto skip_output_asignment;
 172
 173         assert(output != NULL);
 174
 175         /* resize the active surface to the original size */
 176         if (surface->role == IVI_SURFACE_ROLE_SPLIT_H ||
 177             surface->role == IVI_SURFACE_ROLE_SPLIT_V) {
 178                 if (output && output->active) {
 179                         ivi_layout_desktop_resize(output->active, output->area_saved);
 180                 }
 181                 /* restore the area back so we can re-use it again if needed */
 182                 output->area = output->area_saved;
 183         }
 184
 185         /* reset the active surface as well */
 186         if (output && output->active && output->active == surface) {
 187                 output->active->view->is_mapped = false;
 188                 output->active->view->surface->is_mapped = false;
 189
 190                 weston_layer_entry_remove(&output->active->view->layer_link);
 191                 output->active = NULL;
 192         }
 193
 194         if (surface->role == IVI_SURFACE_ROLE_REMOTE &&
 195             output->type == OUTPUT_REMOTE)
 196                 ivi_destroy_waltham_destroy(surface);
 197
 198         /* check if there's a last 'remote' surface and insert a black
 199          * surface view if there's no background set for that output
 200          */
 201         if ((desktop_surface_check_last_remote_surfaces(output->ivi,
 202                 IVI_SURFACE_ROLE_REMOTE) ||
 203             desktop_surface_check_last_remote_surfaces(output->ivi,
 204                 IVI_SURFACE_ROLE_DESKTOP)) && output->type == OUTPUT_REMOTE)
 205                 if (!output->background)
 206                         insert_black_surface(output);
 207
 208
 209         if (weston_surface_is_mapped(wsurface)) {
 210                 weston_desktop_surface_unlink_view(surface->view);
 211                 weston_view_destroy(surface->view);
 212         }
 213
 214         /* invalidate agl-shell surfaces so we can re-use them when
 215          * binding again */
 216         if (surface->role == IVI_SURFACE_ROLE_PANEL) {
 217                 switch (surface->panel.edge) {
 218                 case AGL_SHELL_EDGE_TOP:
 219                         output->top = NULL;
 220                         break;
 221                 case AGL_SHELL_EDGE_BOTTOM:
 222                         output->bottom = NULL;
 223                         break;
 224                 case AGL_SHELL_EDGE_LEFT:
 225                         output->left = NULL;
 226                         break;
 227                 case AGL_SHELL_EDGE_RIGHT:
 228                         output->right = NULL;
 229                         break;
 230                 default:
 231                         assert(!"Invalid edge detected\n");
 232                 }
 233         } else if (surface->role == IVI_SURFACE_ROLE_BACKGROUND) {
 234                 output->background = NULL;
 235         }
 236
 237 skip_output_asignment:
 238         weston_log("Removed surface %p, app_id %s, role %s\n", surface,
 239                         weston_desktop_surface_get_app_id(dsurface),
 240                         ivi_layout_get_surface_role_name(surface));
 241
 242         wl_list_remove(&surface->link);
 243
 244         free(surface);
 245 }
 246
 247 static void
 248 desktop_committed(struct weston_desktop_surface *dsurface,
 249                   int32_t sx, int32_t sy, void *userdata)
 250 {
 251         struct ivi_compositor *ivi = userdata;
 252         struct ivi_surface *surface =
 253                 weston_desktop_surface_get_user_data(dsurface);
 254         struct ivi_policy *policy = surface->ivi->policy;
 255
 256         if (policy && policy->api.surface_commited &&
 257             !policy->api.surface_commited(surface, surface->ivi))
 258                 return;
 259
 260         if (ivi->shell_client.ready && !surface->checked_pending) {
 261                 const char * app_id =   weston_desktop_surface_get_app_id(dsurface);
 262                 weston_log("Checking pending surface %p, app_id %s\n", surface,
 263                         app_id);
 264                 wl_list_remove(&surface->link);
 265                 wl_list_init(&surface->link);
 266                 ivi_check_pending_desktop_surface(surface);
 267                 surface->checked_pending = true;
 268         }
 269
 270         if (!surface->advertised_on_launch &&
 271             !wl_list_empty(&surface->ivi->desktop_clients))
 272                 wl_signal_emit(&surface->signal_advertise_app, surface);
 273
 274         weston_compositor_schedule_repaint(surface->ivi->compositor);
 275
 276         switch (surface->role) {
 277         case IVI_SURFACE_ROLE_DESKTOP:
 278         case IVI_SURFACE_ROLE_REMOTE:
 279                 ivi_layout_desktop_committed(surface);
 280                 break;
 281         case IVI_SURFACE_ROLE_POPUP:
 282                 ivi_layout_popup_committed(surface);
 283                 break;
 284         case IVI_SURFACE_ROLE_FULLSCREEN:
 285                 ivi_layout_fullscreen_committed(surface);
 286                 break;
 287         case IVI_SURFACE_ROLE_SPLIT_H:
 288         case IVI_SURFACE_ROLE_SPLIT_V:
 289                 ivi_layout_split_committed(surface);
 290                 break;
 291         case IVI_SURFACE_ROLE_NONE:
 292         case IVI_SURFACE_ROLE_BACKGROUND:
 293         case IVI_SURFACE_ROLE_PANEL:
 294         default: /* fall through */
 295                 break;
 296         }
 297 }
 298
 299 static void
 300 desktop_show_window_menu(struct weston_desktop_surface *dsurface,
 301                          struct weston_seat *seat, int32_t x, int32_t y,
 302                          void *userdata)
 303 {
 304         /* not supported */
 305 }
 306
 307 static void
 308 desktop_set_parent(struct weston_desktop_surface *dsurface,
 309                    struct weston_desktop_surface *parent, void *userdata)
 310 {
 311         /* not supported */
 312 }
 313
 314 static void
 315 desktop_move(struct weston_desktop_surface *dsurface,
 316              struct weston_seat *seat, uint32_t serial, void *userdata)
 317 {
 318         /* not supported */
 319 }
 320
 321 static void
 322 desktop_resize(struct weston_desktop_surface *dsurface,
 323                struct weston_seat *seat, uint32_t serial,
 324                enum weston_desktop_surface_edge edges, void *user_data)
 325 {
 326         /* not supported */
 327 }
 328
 329 static void
 330 desktop_fullscreen_requested(struct weston_desktop_surface *dsurface,
 331                              bool fullscreen, struct weston_output *output,
 332                              void *userdata)
 333 {
 334         /* not supported */
 335 }
 336
 337 static void
 338 desktop_maximized_requested(struct weston_desktop_surface *dsurface,
 339                             bool maximized, void *userdata)
 340 {
 341         /* not supported */
 342 }
 343
 344 static void
 345 desktop_minimized_requested(struct weston_desktop_surface *dsurface,
 346                             void *userdata)
 347 {
 348         /* not supported */
 349 }
 350
 351 static void
 352 desktop_set_xwayland_position(struct weston_desktop_surface *dsurface,
 353                               int32_t x, int32_t y, void *userdata)
 354 {
 355         /* not supported */
 356 }
 357
 358 static const struct weston_desktop_api desktop_api = {
 359         .struct_size = sizeof desktop_api,
 360         .ping_timeout = desktop_ping_timeout,
 361         .pong = desktop_pong,
 362         .surface_added = desktop_surface_added,
 363         .surface_removed = desktop_surface_removed,
 364         .committed = desktop_committed,
 365         .show_window_menu = desktop_show_window_menu,
 366         .set_parent = desktop_set_parent,
 367         .move = desktop_move,
 368         .resize = desktop_resize,
 369         .fullscreen_requested = desktop_fullscreen_requested,
 370         .maximized_requested = desktop_maximized_requested,
 371         .minimized_requested = desktop_minimized_requested,
 372         .set_xwayland_position = desktop_set_xwayland_position,
 373 };
 374
 375 int
 376 ivi_desktop_init(struct ivi_compositor *ivi)
 377 {
 378         ivi->desktop = weston_desktop_create(ivi->compositor, &desktop_api, ivi);
 379         if (!ivi->desktop) {
 380                 weston_log("Failed to create desktop globals");
 381                 return -1;
 382         }
 383
 384         return 0;
 385 }