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