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