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