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         if (ivi->policy && ivi->policy->api.surface_create &&
  89             !ivi->policy->api.surface_create(surface, ivi)) {
  90                 free(surface);
  91                 wl_client_post_no_memory(client);
  92                 return;
  93         }
  94
  95         weston_desktop_surface_set_user_data(dsurface, surface);
  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         if (ivi->shell_client.ready) {
 103                 ivi_check_pending_desktop_surface(surface);
 104                 weston_log("Added surface %p, app_id %s, role %s\n", surface,
 105                                 app_id, ivi_layout_get_surface_role_name(surface));
 106         } else {
 107                 /*
 108                  * We delay creating "normal" desktop surfaces until later, to
 109                  * give the shell-client an oppurtunity to set the surface as a
 110                  * background/panel.
 111                  */
 112                 weston_log("Added surface %p, app_id %s to pending list\n",
 113                                 surface, app_id);
 114                 wl_list_insert(&ivi->pending_surfaces, &surface->link);
 115         }
 116 }
 117
 118 static bool
 119 desktop_surface_check_last_remote_surfaces(struct ivi_compositor *ivi, enum ivi_surface_role role)
 120 {
 121         int count = 0;
 122         struct ivi_surface *surf;
 123
 124         wl_list_for_each(surf, &ivi->surfaces, link)
 125                 if (surf->role == role)
 126                         count++;
 127
 128         return (count == 1);
 129 }
 130
 131 static void
 132 desktop_surface_removed(struct weston_desktop_surface *dsurface, void *userdata)
 133 {
 134         struct ivi_surface *surface =
 135                 weston_desktop_surface_get_user_data(dsurface);
 136         struct weston_surface *wsurface =
 137                 weston_desktop_surface_get_surface(dsurface);
 138
 139         struct ivi_output *output = ivi_layout_get_output_from_surface(surface);
 140
 141         /* special corner-case, pending_surfaces which are never activated or
 142          * being assigned an output might land here so just remove the surface */
 143         if (output == NULL && surface->role == IVI_SURFACE_ROLE_NONE)
 144                 goto skip_output_asignment;
 145
 146         assert(output != NULL);
 147
 148         /* resize the active surface to the original size */
 149         if (surface->role == IVI_SURFACE_ROLE_SPLIT_H ||
 150             surface->role == IVI_SURFACE_ROLE_SPLIT_V) {
 151                 if (output && output->active) {
 152                         ivi_layout_desktop_resize(output->active, output->area_saved);
 153                 }
 154                 /* restore the area back so we can re-use it again if needed */
 155                 output->area = output->area_saved;
 156         }
 157
 158         /* reset the active surface as well */
 159         if (output && output->active && output->active == surface) {
 160                 output->active->view->is_mapped = false;
 161                 output->active->view->surface->is_mapped = false;
 162
 163                 weston_layer_entry_remove(&output->active->view->layer_link);
 164                 output->active = NULL;
 165         }
 166
 167         /* check if there's a last 'remote' surface and insert a black
 168          * surface view if there's no background set for that output
 169          */
 170         if (desktop_surface_check_last_remote_surfaces(output->ivi,
 171             IVI_SURFACE_ROLE_REMOTE))
 172                 if (!output->background)
 173                         insert_black_surface(output);
 174
 175         if (desktop_surface_check_last_remote_surfaces(output->ivi,
 176             IVI_SURFACE_ROLE_DESKTOP))
 177                 if (!output->background)
 178                         insert_black_surface(output);
 179
 180         if (weston_surface_is_mapped(wsurface)) {
 181                 weston_desktop_surface_unlink_view(surface->view);
 182                 weston_view_destroy(surface->view);
 183         }
 184
 185         /* invalidate agl-shell surfaces so we can re-use them when
 186          * binding again */
 187         if (surface->role == IVI_SURFACE_ROLE_PANEL) {
 188                 switch (surface->panel.edge) {
 189                 case AGL_SHELL_EDGE_TOP:
 190                         output->top = NULL;
 191                         break;
 192                 case AGL_SHELL_EDGE_BOTTOM:
 193                         output->bottom = NULL;
 194                         break;
 195                 case AGL_SHELL_EDGE_LEFT:
 196                         output->left = NULL;
 197                         break;
 198                 case AGL_SHELL_EDGE_RIGHT:
 199                         output->right = NULL;
 200                         break;
 201                 default:
 202                         assert(!"Invalid edge detected\n");
 203                 }
 204         } else if (surface->role == IVI_SURFACE_ROLE_BACKGROUND) {
 205                 output->background = NULL;
 206         }
 207
 208 skip_output_asignment:
 209         weston_log("Removed surface %p, app_id %s, role %s\n", surface,
 210                         weston_desktop_surface_get_app_id(dsurface),
 211                         ivi_layout_get_surface_role_name(surface));
 212         wl_list_remove(&surface->link);
 213         free(surface);
 214 }
 215
 216 static void
 217 desktop_committed(struct weston_desktop_surface *dsurface,
 218                   int32_t sx, int32_t sy, void *userdata)
 219 {
 220         struct ivi_surface *surface =
 221                 weston_desktop_surface_get_user_data(dsurface);
 222         struct ivi_policy *policy = surface->ivi->policy;
 223
 224         if (policy && policy->api.surface_commited &&
 225             !policy->api.surface_commited(surface, surface->ivi))
 226                 return;
 227
 228         weston_compositor_schedule_repaint(surface->ivi->compositor);
 229
 230         switch (surface->role) {
 231         case IVI_SURFACE_ROLE_DESKTOP:
 232         case IVI_SURFACE_ROLE_REMOTE:
 233                 ivi_layout_desktop_committed(surface);
 234                 break;
 235         case IVI_SURFACE_ROLE_POPUP:
 236                 ivi_layout_popup_committed(surface);
 237                 break;
 238         case IVI_SURFACE_ROLE_FULLSCREEN:
 239                 ivi_layout_fullscreen_committed(surface);
 240                 break;
 241         case IVI_SURFACE_ROLE_SPLIT_H:
 242         case IVI_SURFACE_ROLE_SPLIT_V:
 243                 ivi_layout_split_committed(surface);
 244                 break;
 245         case IVI_SURFACE_ROLE_NONE:
 246         case IVI_SURFACE_ROLE_BACKGROUND:
 247         case IVI_SURFACE_ROLE_PANEL:
 248         default: /* fall through */
 249                 break;
 250         }
 251 }
 252
 253 static void
 254 desktop_show_window_menu(struct weston_desktop_surface *dsurface,
 255                          struct weston_seat *seat, int32_t x, int32_t y,
 256                          void *userdata)
 257 {
 258         /* not supported */
 259 }
 260
 261 static void
 262 desktop_set_parent(struct weston_desktop_surface *dsurface,
 263                    struct weston_desktop_surface *parent, void *userdata)
 264 {
 265         /* not supported */
 266 }
 267
 268 static void
 269 desktop_move(struct weston_desktop_surface *dsurface,
 270              struct weston_seat *seat, uint32_t serial, void *userdata)
 271 {
 272         /* not supported */
 273 }
 274
 275 static void
 276 desktop_resize(struct weston_desktop_surface *dsurface,
 277                struct weston_seat *seat, uint32_t serial,
 278                enum weston_desktop_surface_edge edges, void *user_data)
 279 {
 280         /* not supported */
 281 }
 282
 283 static void
 284 desktop_fullscreen_requested(struct weston_desktop_surface *dsurface,
 285                              bool fullscreen, struct weston_output *output,
 286                              void *userdata)
 287 {
 288         /* not supported */
 289 }
 290
 291 static void
 292 desktop_maximized_requested(struct weston_desktop_surface *dsurface,
 293                             bool maximized, void *userdata)
 294 {
 295         /* not supported */
 296 }
 297
 298 static void
 299 desktop_minimized_requested(struct weston_desktop_surface *dsurface,
 300                             void *userdata)
 301 {
 302         /* not supported */
 303 }
 304
 305 static void
 306 desktop_set_xwayland_position(struct weston_desktop_surface *dsurface,
 307                               int32_t x, int32_t y, void *userdata)
 308 {
 309         /* not supported */
 310 }
 311
 312 static const struct weston_desktop_api desktop_api = {
 313         .struct_size = sizeof desktop_api,
 314         .ping_timeout = desktop_ping_timeout,
 315         .pong = desktop_pong,
 316         .surface_added = desktop_surface_added,
 317         .surface_removed = desktop_surface_removed,
 318         .committed = desktop_committed,
 319         .show_window_menu = desktop_show_window_menu,
 320         .set_parent = desktop_set_parent,
 321         .move = desktop_move,
 322         .resize = desktop_resize,
 323         .fullscreen_requested = desktop_fullscreen_requested,
 324         .maximized_requested = desktop_maximized_requested,
 325         .minimized_requested = desktop_minimized_requested,
 326         .set_xwayland_position = desktop_set_xwayland_position,
 327 };
 328
 329 int
 330 ivi_desktop_init(struct ivi_compositor *ivi)
 331 {
 332         ivi->desktop = weston_desktop_create(ivi->compositor, &desktop_api, ivi);
 333         if (!ivi->desktop) {
 334                 weston_log("Failed to create desktop globals");
 335                 return -1;
 336         }
 337
 338         return 0;
 339 }