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