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_ping_timeout(struct weston_desktop_client *dclient, void *userdata)
  47 {
  48         /* not supported */
  49 }
  50
  51 static void
  52 desktop_pong(struct weston_desktop_client *dclient, void *userdata)
  53 {
  54         /* not supported */
  55 }
  56
  57 static void
  58 desktop_surface_added(struct weston_desktop_surface *dsurface, void *userdata)
  59 {
  60         struct ivi_compositor *ivi = userdata;
  61         struct weston_desktop_client *dclient;
  62         struct wl_client *client;
  63         struct ivi_surface *surface;
  64         struct ivi_output *active_output = NULL;
  65         const char *app_id = NULL;
  66
  67         dclient = weston_desktop_surface_get_client(dsurface);
  68         client = weston_desktop_client_get_client(dclient);
  69
  70         surface = zalloc(sizeof *surface);
  71         if (!surface) {
  72                 wl_client_post_no_memory(client);
  73                 return;
  74         }
  75
  76         surface->view = weston_desktop_surface_create_view(dsurface);
  77         if (!surface->view) {
  78                 free(surface);
  79                 wl_client_post_no_memory(client);
  80                 return;
  81         }
  82
  83         surface->ivi = ivi;
  84         surface->dsurface = dsurface;
  85         surface->role = IVI_SURFACE_ROLE_NONE;
  86         surface->activated_by_default = false;
  87
  88         weston_desktop_surface_set_user_data(dsurface, surface);
  89
  90         if (ivi->policy && ivi->policy->api.surface_create &&
  91             !ivi->policy->api.surface_create(surface, ivi)) {
  92                 wl_client_post_no_memory(client);
  93                 return;
  94         }
  95
  96
  97         app_id = weston_desktop_surface_get_app_id(dsurface);
  98
  99         if ((active_output = ivi_layout_find_with_app_id(app_id, ivi)))
 100                 ivi_set_pending_desktop_surface_remote(active_output, app_id);
 101
 102         /* reset any caps to make sure we apply the new caps */
 103         ivi_seat_reset_caps_sent(ivi);
 104
 105         if (ivi->shell_client.ready) {
 106                 ivi_check_pending_desktop_surface(surface);
 107                 weston_log("Added surface %p, app_id %s, role %s\n", surface,
 108                                 app_id, ivi_layout_get_surface_role_name(surface));
 109         } else {
 110                 /*
 111                  * We delay creating "normal" desktop surfaces until later, to
 112                  * give the shell-client an oppurtunity to set the surface as a
 113                  * background/panel.
 114                  */
 115                 weston_log("Added surface %p, app_id %s to pending list\n",
 116                                 surface, app_id);
 117                 wl_list_insert(&ivi->pending_surfaces, &surface->link);
 118         }
 119 }
 120
 121 static bool
 122 desktop_surface_check_last_remote_surfaces(struct ivi_compositor *ivi, enum ivi_surface_role role)
 123 {
 124         int count = 0;
 125         struct ivi_surface *surf;
 126
 127         wl_list_for_each(surf, &ivi->surfaces, link)
 128                 if (surf->role == role)
 129                         count++;
 130
 131         return (count == 1);
 132 }
 133
 134 static void
 135 desktop_surface_removed(struct weston_desktop_surface *dsurface, void *userdata)
 136 {
 137         struct ivi_surface *surface =
 138                 weston_desktop_surface_get_user_data(dsurface);
 139         struct weston_surface *wsurface =
 140                 weston_desktop_surface_get_surface(dsurface);
 141
 142         struct ivi_output *output = ivi_layout_get_output_from_surface(surface);
 143
 144         /* special corner-case, pending_surfaces which are never activated or
 145          * being assigned an output might land here so just remove the surface;
 146          *
 147          * the DESKTOP role can happen here as well, because we can fall-back
 148          * to that when we try to determine the role type. Application that
 149          * do not set the app_id will be land here, when destroyed */
 150         if (output == NULL && (surface->role == IVI_SURFACE_ROLE_NONE ||
 151                                surface->role == IVI_SURFACE_ROLE_DESKTOP))
 152                 goto skip_output_asignment;
 153
 154         assert(output != NULL);
 155
 156         /* resize the active surface to the original size */
 157         if (surface->role == IVI_SURFACE_ROLE_SPLIT_H ||
 158             surface->role == IVI_SURFACE_ROLE_SPLIT_V) {
 159                 if (output && output->active) {
 160                         ivi_layout_desktop_resize(output->active, output->area_saved);
 161                 }
 162                 /* restore the area back so we can re-use it again if needed */
 163                 output->area = output->area_saved;
 164         }
 165
 166         /* reset the active surface as well */
 167         if (output && output->active && output->active == surface) {
 168                 output->active->view->is_mapped = false;
 169                 output->active->view->surface->is_mapped = false;
 170
 171                 weston_layer_entry_remove(&output->active->view->layer_link);
 172                 output->active = NULL;
 173         }
 174
 175         /* check if there's a last 'remote' surface and insert a black
 176          * surface view if there's no background set for that output
 177          */
 178         if (desktop_surface_check_last_remote_surfaces(output->ivi,
 179             IVI_SURFACE_ROLE_REMOTE))
 180                 if (!output->background)
 181                         insert_black_surface(output);
 182
 183         if (desktop_surface_check_last_remote_surfaces(output->ivi,
 184             IVI_SURFACE_ROLE_DESKTOP))
 185                 if (!output->background)
 186                         insert_black_surface(output);
 187
 188         if (weston_surface_is_mapped(wsurface)) {
 189                 weston_desktop_surface_unlink_view(surface->view);
 190                 weston_view_destroy(surface->view);
 191         }
 192
 193         /* invalidate agl-shell surfaces so we can re-use them when
 194          * binding again */
 195         if (surface->role == IVI_SURFACE_ROLE_PANEL) {
 196                 switch (surface->panel.edge) {
 197                 case AGL_SHELL_EDGE_TOP:
 198                         output->top = NULL;
 199                         break;
 200                 case AGL_SHELL_EDGE_BOTTOM:
 201                         output->bottom = NULL;
 202                         break;
 203                 case AGL_SHELL_EDGE_LEFT:
 204                         output->left = NULL;
 205                         break;
 206                 case AGL_SHELL_EDGE_RIGHT:
 207                         output->right = NULL;
 208                         break;
 209                 default:
 210                         assert(!"Invalid edge detected\n");
 211                 }
 212         } else if (surface->role == IVI_SURFACE_ROLE_BACKGROUND) {
 213                 output->background = NULL;
 214         }
 215
 216 skip_output_asignment:
 217         weston_log("Removed surface %p, app_id %s, role %s\n", surface,
 218                         weston_desktop_surface_get_app_id(dsurface),
 219                         ivi_layout_get_surface_role_name(surface));
 220
 221         /* we weren't added to any list if we are still with 'none' as role */
 222         if (surface->role != IVI_SURFACE_ROLE_NONE)
 223                 wl_list_remove(&surface->link);
 224
 225         free(surface);
 226 }
 227
 228 static void
 229 desktop_committed(struct weston_desktop_surface *dsurface,
 230                   int32_t sx, int32_t sy, void *userdata)
 231 {
 232         struct ivi_surface *surface =
 233                 weston_desktop_surface_get_user_data(dsurface);
 234         struct ivi_policy *policy = surface->ivi->policy;
 235
 236         if (policy && policy->api.surface_commited &&
 237             !policy->api.surface_commited(surface, surface->ivi))
 238                 return;
 239
 240         weston_compositor_schedule_repaint(surface->ivi->compositor);
 241
 242         switch (surface->role) {
 243         case IVI_SURFACE_ROLE_DESKTOP:
 244         case IVI_SURFACE_ROLE_REMOTE:
 245                 ivi_layout_desktop_committed(surface);
 246                 break;
 247         case IVI_SURFACE_ROLE_POPUP:
 248                 ivi_layout_popup_committed(surface);
 249                 break;
 250         case IVI_SURFACE_ROLE_FULLSCREEN:
 251                 ivi_layout_fullscreen_committed(surface);
 252                 break;
 253         case IVI_SURFACE_ROLE_SPLIT_H:
 254         case IVI_SURFACE_ROLE_SPLIT_V:
 255                 ivi_layout_split_committed(surface);
 256                 break;
 257         case IVI_SURFACE_ROLE_NONE:
 258         case IVI_SURFACE_ROLE_BACKGROUND:
 259         case IVI_SURFACE_ROLE_PANEL:
 260         default: /* fall through */
 261                 break;
 262         }
 263 }
 264
 265 static void
 266 desktop_show_window_menu(struct weston_desktop_surface *dsurface,
 267                          struct weston_seat *seat, int32_t x, int32_t y,
 268                          void *userdata)
 269 {
 270         /* not supported */
 271 }
 272
 273 static void
 274 desktop_set_parent(struct weston_desktop_surface *dsurface,
 275                    struct weston_desktop_surface *parent, void *userdata)
 276 {
 277         /* not supported */
 278 }
 279
 280 static void
 281 desktop_move(struct weston_desktop_surface *dsurface,
 282              struct weston_seat *seat, uint32_t serial, void *userdata)
 283 {
 284         /* not supported */
 285 }
 286
 287 static void
 288 desktop_resize(struct weston_desktop_surface *dsurface,
 289                struct weston_seat *seat, uint32_t serial,
 290                enum weston_desktop_surface_edge edges, void *user_data)
 291 {
 292         /* not supported */
 293 }
 294
 295 static void
 296 desktop_fullscreen_requested(struct weston_desktop_surface *dsurface,
 297                              bool fullscreen, struct weston_output *output,
 298                              void *userdata)
 299 {
 300         /* not supported */
 301 }
 302
 303 static void
 304 desktop_maximized_requested(struct weston_desktop_surface *dsurface,
 305                             bool maximized, void *userdata)
 306 {
 307         /* not supported */
 308 }
 309
 310 static void
 311 desktop_minimized_requested(struct weston_desktop_surface *dsurface,
 312                             void *userdata)
 313 {
 314         /* not supported */
 315 }
 316
 317 static void
 318 desktop_set_xwayland_position(struct weston_desktop_surface *dsurface,
 319                               int32_t x, int32_t y, void *userdata)
 320 {
 321         /* not supported */
 322 }
 323
 324 static const struct weston_desktop_api desktop_api = {
 325         .struct_size = sizeof desktop_api,
 326         .ping_timeout = desktop_ping_timeout,
 327         .pong = desktop_pong,
 328         .surface_added = desktop_surface_added,
 329         .surface_removed = desktop_surface_removed,
 330         .committed = desktop_committed,
 331         .show_window_menu = desktop_show_window_menu,
 332         .set_parent = desktop_set_parent,
 333         .move = desktop_move,
 334         .resize = desktop_resize,
 335         .fullscreen_requested = desktop_fullscreen_requested,
 336         .maximized_requested = desktop_maximized_requested,
 337         .minimized_requested = desktop_minimized_requested,
 338         .set_xwayland_position = desktop_set_xwayland_position,
 339 };
 340
 341 int
 342 ivi_desktop_init(struct ivi_compositor *ivi)
 343 {
 344         ivi->desktop = weston_desktop_create(ivi->compositor, &desktop_api, ivi);
 345         if (!ivi->desktop) {
 346                 weston_log("Failed to create desktop globals");
 347                 return -1;
 348         }
 349
 350         return 0;
 351 }