src/app.cpp

   1 /*
   2  * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include "app.hpp"
  18 #include "json_helper.hpp"
  19 #include "layers.hpp"
  20 #include "layout.hpp"
  21 #include "util.hpp"
  22 #include "wayland_ivi_wm.hpp"
  23
  24 #include <cstdio>
  25 #include <memory>
  26
  27 #include <cassert>
  28
  29 #include <json-c/json.h>
  30
  31 #include <algorithm>
  32 #include <csignal>
  33 #include <fstream>
  34 #include <json.hpp>
  35 #include <regex>
  36 #include <thread>
  37
  38 #include "wm-client.hpp"
  39 #include "applist.hpp"
  40
  41 extern "C"
  42 {
  43 #include <systemd/sd-event.h>
  44 }
  45
  46 namespace wm
  47 {
  48
  49 const unsigned kTimeOut = 10000000UL; /* 10s */
  50
  51 /* DrawingArea name used by "{layout}.{area}" */
  52 const char kNameLayoutNormal[] = "normal";
  53 const char kNameLayoutSplit[] = "split";
  54 const char kNameAreaFull[] = "full";
  55 const char kNameAreaMain[] = "main";
  56 const char kNameAreaSub[] = "sub";
  57
  58 /* Key for json obejct */
  59 const char kKeyDrawingName[] = "drawing_name";
  60 const char kKeyDrawingArea[] = "drawing_area";
  61 const char kKeyDrawingRect[] = "drawing_rect";
  62 const char kKeyX[] = "x";
  63 const char kKeyY[] = "y";
  64 const char kKeyWidth[] = "width";
  65 const char kKeyHeight[] = "height";
  66 const char kKeyWidthPixel[] = "width_pixel";
  67 const char kKeyHeightPixel[] = "height_pixel";
  68 const char kKeyWidthMm[] = "width_mm";
  69 const char kKeyHeightMm[] = "height_mm";
  70
  71 static sd_event_source *g_timer_ev_src = nullptr;
  72
  73 static AppList g_app_list;
  74
  75 namespace
  76 {
  77
  78 using nlohmann::json;
  79
  80 result<json> file_to_json(char const *filename)
  81 {
  82     json j;
  83     std::ifstream i(filename);
  84     if (i.fail())
  85     {
  86         HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  87         j = default_layers_json;
  88     }
  89     else
  90     {
  91         i >> j;
  92     }
  93
  94     return Ok(j);
  95 }
  96
  97 struct result<layer_map> load_layer_map(char const *filename)
  98 {
  99     HMI_DEBUG("wm", "loading IDs from %s", filename);
 100
 101     auto j = file_to_json(filename);
 102     if (j.is_err())
 103     {
 104         return Err<layer_map>(j.unwrap_err());
 105     }
 106     json jids = j.unwrap();
 107
 108     return to_layer_map(jids);
 109 }
 110
 111 static int
 112 processTimerHandler(sd_event_source *s, uint64_t usec, void *userdata)
 113 {
 114     HMI_NOTICE("wm", "Time out occurs because the client replys endDraw slow, so revert the request");
 115     reinterpret_cast<wm::App *>(userdata)->timerHandler();
 116     return 0;
 117 }
 118
 119 } // namespace
 120
 121 void App::timerHandler()
 122 {
 123     unsigned seq = g_app_list.currentSequenceNumber();
 124     HMI_SEQ_DEBUG(seq, "Timer expired remove Request");
 125     g_app_list.reqDump();
 126     g_app_list.removeRequest(seq);
 127     g_app_list.next();
 128     g_app_list.reqDump();
 129     if (g_app_list.haveRequest())
 130     {
 131         this->process_request();
 132     }
 133 }
 134
 135 void App::removeClient(const std::string &appid)
 136 {
 137     HMI_DEBUG("wm", "Remove clinet %s from list", appid.c_str());
 138     g_app_list.removeClient(appid);
 139 }
 140
 141 bool App::subscribeEventForApp(const std::string &appid, afb_req req, const std::string &evname)
 142 {
 143     if(!g_app_list.contains(appid)){
 144         HMI_DEBUG("wm", "Client %s is not registered", appid.c_str());
 145         return false;
 146     }
 147     auto client = g_app_list.lookUpClient(appid);
 148     return client->subscribe(req, evname);
 149 }
 150
 151 /**
 152  * App Impl
 153  */
 154 App::App(wl::display *d)
 155     : chooks{this},
 156       display{d},
 157       controller{},
 158       outputs(),
 159       config(),
 160       layers(),
 161       id_alloc{},
 162       pending_events(false),
 163       policy{}
 164 {
 165     try
 166     {
 167         {
 168             auto l = load_layer_map(
 169                 this->config.get_string("layers.json").value().c_str());
 170             if (l.is_ok())
 171             {
 172                 this->layers = l.unwrap();
 173             }
 174             else
 175             {
 176                 HMI_ERROR("wm", "%s", l.err().value());
 177             }
 178         }
 179     }
 180     catch (std::exception &e)
 181     {
 182         HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 183     }
 184 }
 185
 186 int App::init()
 187 {
 188     if (!this->display->ok())
 189     {
 190         return -1;
 191     }
 192
 193     if (this->layers.mapping.empty())
 194     {
 195         HMI_ERROR("wm", "No surface -> layer mapping loaded");
 196         return -1;
 197     }
 198
 199     // Make afb event
 200     for (int i = Event_Val_Min; i <= Event_Val_Max; i++)
 201     {
 202         map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 203     }
 204
 205     this->display->add_global_handler(
 206         "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 207             this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 208         });
 209
 210     this->display->add_global_handler(
 211         "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
 212             this->controller =
 213                 std::make_unique<struct compositor::controller>(r, name, v);
 214
 215             // Init controller hooks
 216             this->controller->chooks = &this->chooks;
 217
 218             // This protocol needs the output, so lets just add our mapping here...
 219             this->controller->add_proxy_to_id_mapping(
 220                 this->outputs.back()->proxy.get(),
 221                 wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 222                     this->outputs.back()->proxy.get())));
 223
 224             // Create screen
 225             this->controller->create_screen(this->outputs.back()->proxy.get());
 226
 227             // Set display to controller
 228             this->controller->display = this->display;
 229         });
 230
 231     // First level objects
 232     this->display->roundtrip();
 233     // Second level objects
 234     this->display->roundtrip();
 235     // Third level objects
 236     this->display->roundtrip();
 237
 238     return init_layers();
 239 }
 240
 241 int App::dispatch_pending_events()
 242 {
 243     if (this->pop_pending_events())
 244     {
 245         this->display->dispatch_pending();
 246         return 0;
 247     }
 248     return -1;
 249 }
 250
 251 bool App::pop_pending_events()
 252 {
 253     bool x{true};
 254     return this->pending_events.compare_exchange_strong(
 255         x, false, std::memory_order_consume);
 256 }
 257
 258 void App::set_pending_events()
 259 {
 260     this->pending_events.store(true, std::memory_order_release);
 261 }
 262
 263 optional<int> App::lookup_id(char const *name)
 264 {
 265     return this->id_alloc.lookup(std::string(name));
 266 }
 267 optional<std::string> App::lookup_name(int id)
 268 {
 269     return this->id_alloc.lookup(id);
 270 }
 271
 272 /**
 273  * init_layers()
 274  */
 275 int App::init_layers()
 276 {
 277     if (!this->controller)
 278     {
 279         HMI_ERROR("wm", "ivi_controller global not available");
 280         return -1;
 281     }
 282
 283     if (this->outputs.empty())
 284     {
 285         HMI_ERROR("wm", "no output was set up!");
 286         return -1;
 287     }
 288
 289     auto &c = this->controller;
 290
 291     auto &o = this->outputs.front();
 292     auto &s = c->screens.begin()->second;
 293     auto &layers = c->layers;
 294
 295     // Write output dimensions to ivi controller...
 296     c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 297     c->physical_size = compositor::size{uint32_t(o->physical_width),
 298                                         uint32_t(o->physical_height)};
 299
 300     // Clear scene
 301     layers.clear();
 302
 303     // Clear screen
 304     s->clear();
 305
 306     // Quick and dirty setup of layers
 307     for (auto const &i : this->layers.mapping)
 308     {
 309         c->layer_create(i.second.layer_id, o->width, o->height);
 310         auto &l = layers[i.second.layer_id];
 311         l->set_destination_rectangle(0, 0, o->width, o->height);
 312         l->set_visibility(1);
 313         HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 314                   i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 315     }
 316
 317     // Add layers to screen
 318     s->set_render_order(this->layers.layers);
 319
 320     this->layout_commit();
 321
 322     return 0;
 323 }
 324
 325 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id)
 326 {
 327     if (!this->controller->surface_exists(surface_id))
 328     {
 329         HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 330         return;
 331     }
 332
 333     auto o_layer_id = this->layers.get_layer_id(surface_id);
 334
 335     if (!o_layer_id)
 336     {
 337         HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 338         return;
 339     }
 340
 341     uint32_t layer_id = *o_layer_id;
 342
 343     auto const &layer = this->layers.get_layer(layer_id);
 344     auto rect = layer.value().rect;
 345     auto &s = this->controller->surfaces[surface_id];
 346
 347     int x = rect.x;
 348     int y = rect.y;
 349     int w = rect.w;
 350     int h = rect.h;
 351
 352     // less-than-0 values refer to MAX + 1 - $VALUE
 353     // e.g. MAX is either screen width or height
 354     if (w < 0)
 355     {
 356         w = this->controller->output_size.w + 1 + w;
 357     }
 358     if (h < 0)
 359     {
 360         h = this->controller->output_size.h + 1 + h;
 361     }
 362
 363     if (sub_surface_id)
 364     {
 365         if (o_layer_id != this->layers.get_layer_id(*sub_surface_id))
 366         {
 367             HMI_ERROR("wm",
 368                       "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 369                       surface_id, *sub_surface_id);
 370             return;
 371         }
 372
 373         int x_off = 0;
 374         int y_off = 0;
 375
 376         // split along major axis
 377         if (w > h)
 378         {
 379             w /= 2;
 380             x_off = w;
 381         }
 382         else
 383         {
 384             h /= 2;
 385             y_off = h;
 386         }
 387
 388         auto &ss = this->controller->surfaces[*sub_surface_id];
 389
 390         HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 391                   *sub_surface_id, layer_id);
 392
 393         // set destination to the display rectangle
 394         ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 395
 396         this->area_info[*sub_surface_id].x = x;
 397         this->area_info[*sub_surface_id].y = y;
 398         this->area_info[*sub_surface_id].w = w;
 399         this->area_info[*sub_surface_id].h = h;
 400     }
 401
 402     HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 403               layer_id);
 404
 405     // set destination to the display rectangle
 406     s->set_destination_rectangle(x, y, w, h);
 407
 408     // update area information
 409     this->area_info[surface_id].x = x;
 410     this->area_info[surface_id].y = y;
 411     this->area_info[surface_id].w = w;
 412     this->area_info[surface_id].h = h;
 413
 414     HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 415               surface_id, layer_id, x, y, w, h);
 416 }
 417
 418 void App::layout_commit()
 419 {
 420     this->controller->commit_changes();
 421     this->display->flush();
 422 }
 423
 424 void App::set_timer()
 425 {
 426     HMI_SEQ_DEBUG(g_app_list.currentSequenceNumber(), "Timer set activate");
 427     if (g_timer_ev_src == nullptr)
 428     {
 429         // firsttime set into sd_event
 430         int ret = sd_event_add_time(afb_daemon_get_event_loop(), &g_timer_ev_src,
 431                                     CLOCK_REALTIME, time(NULL) * (1000000UL) + kTimeOut, 1, processTimerHandler, this);
 432         if (ret < 0)
 433         {
 434             HMI_ERROR("wm", "Could't set timer");
 435         }
 436     }
 437     else
 438     {
 439         // update timer limitation after second time
 440         sd_event_source_set_time(g_timer_ev_src, time(NULL) * (1000000UL) + kTimeOut);
 441         sd_event_source_set_enabled(g_timer_ev_src, SD_EVENT_ONESHOT);
 442     }
 443 }
 444
 445 void App::stop_timer()
 446 {
 447     unsigned seq = g_app_list.currentSequenceNumber();
 448     HMI_SEQ_DEBUG(seq, "Timer stop");
 449     int rc = sd_event_source_set_enabled(g_timer_ev_src, SD_EVENT_OFF);
 450     if (rc < 0)
 451     {
 452         HMI_SEQ_ERROR(seq, "Timer stop failed");
 453     }
 454 }
 455
 456 bool App::lm_release(const struct WMAction &action)
 457 {
 458     //auto const &surface_id = this->lookup_id(drawing_name);
 459     unsigned req_num = g_app_list.currentSequenceNumber();
 460     auto const &surface_id = this->lookup_id(action.role.c_str());
 461     if (!surface_id)
 462     {
 463         HMI_SEQ_ERROR(req_num, "Surface does not exist");
 464         return false;
 465     }
 466
 467     if (*surface_id == this->layers.main_surface)
 468     {
 469         HMI_SEQ_ERROR(req_num, "Cannot deactivate main_surface");
 470         return false;
 471     }
 472
 473     auto o_state = *this->layers.get_layout_state(*surface_id);
 474
 475     if (o_state == nullptr)
 476     {
 477         HMI_SEQ_ERROR(req_num, "Could not find layer for surface");
 478         return false;
 479     }
 480
 481     struct LayoutState &state = *o_state;
 482
 483     if (state.main == -1)
 484     {
 485         HMI_SEQ_ERROR(req_num, "No surface active");
 486         return false;
 487     }
 488
 489     // Check against main_surface, main_surface_name is the configuration item.
 490     if (*surface_id == this->layers.main_surface)
 491     {
 492         HMI_SEQ_DEBUG(req_num, "Refusing to deactivate main_surface %d", *surface_id);
 493         //reply(nullptr);
 494         return true;
 495     }
 496     if ((state.main == *surface_id) && (state.sub == *surface_id))
 497     {
 498         HMI_SEQ_ERROR(req_num, "Surface is not active");
 499         return false;
 500     }
 501
 502     if (state.main == *surface_id)
 503     {
 504         if (state.sub != -1)
 505         {
 506             this->try_layout(
 507                 state, LayoutState{state.sub, -1}, [&](LayoutState const &nl) {
 508                     std::string sub = std::move(*this->lookup_name(state.sub));
 509
 510                     this->deactivate(*surface_id);
 511                     this->surface_set_layout(state.sub);
 512                     state = nl;
 513
 514                     this->layout_commit();
 515                     std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 516                     compositor::rect area_rect = this->area_info[state.sub];
 517                     this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 518                                         area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 519                     this->enqueue_flushdraw(state.sub);
 520                 });
 521         }
 522         else
 523         {
 524             this->try_layout(state, LayoutState{-1, -1}, [&](LayoutState const &nl) {
 525                 this->deactivate(*surface_id);
 526                 state = nl;
 527                 this->layout_commit();
 528             });
 529         }
 530     }
 531     else if (state.sub == *surface_id)
 532     {
 533         this->try_layout(
 534             state, LayoutState{state.main, -1}, [&](LayoutState const &nl) {
 535                 std::string main = std::move(*this->lookup_name(state.main));
 536
 537                 this->deactivate(*surface_id);
 538                 this->surface_set_layout(state.main);
 539                 state = nl;
 540
 541                 this->layout_commit();
 542                 std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 543                 compositor::rect area_rect = this->area_info[state.main];
 544                 this->emit_syncdraw(main.c_str(), str_area.c_str(),
 545                                     area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 546                 this->enqueue_flushdraw(state.main);
 547             });
 548     }
 549     return true;
 550 }
 551
 552 bool App::lm_layout_change(const struct WMAction &action)
 553 {
 554     const char *msg = this->check_surface_exist(action.role.c_str());
 555
 556     /*
 557     lm_.updateLayout(action);
 558     TODO: emit syncDraw with application*/
 559     if (msg)
 560     {
 561         HMI_SEQ_DEBUG(g_app_list.currentSequenceNumber(), msg);
 562         //g_app_list.removeRequest(req_num);
 563         return false;
 564     }
 565     this->lm_layout_change(action.role.c_str());
 566     return true;
 567 }
 568
 569 bool App::do_transition(unsigned req_num)
 570 {
 571     /*
 572     * Check Policy
 573     */
 574     // get current trigger
 575     auto trigger = g_app_list.getRequest(req_num);
 576     bool is_activate = true;
 577
 578     /*  get new status from Policy Manager
 579
 580     (json_object*?) newLayout = checkPolicy(trigger);
 581     (vector<struct WMAction>&) auto actions = translator.inputActionFromLayout(newLayout, currentLayout)
 582     for(const auto& x : actions){
 583         g_app_list.setAciton(req_num, x)
 584     }
 585
 586     or
 587
 588     translator.inputActionFromLayout(newLayout, currentLayout, &g_app_list, req_num);
 589
 590     /* The following error check is not necessary because main.cpp will reject the message form not registered object
 591    } */
 592     HMI_SEQ_NOTICE(req_num, "ATM, Policy manager does't exist, then set WMAction as is");
 593
 594     if (trigger.task == Task::TASK_RELEASE)
 595     {
 596         is_activate = false;
 597     }
 598     bool ret = g_app_list.setAction(req_num, trigger.appid, trigger.role, trigger.area, is_activate);
 599     g_app_list.reqDump();
 600
 601     if (!ret)
 602     {
 603         HMI_SEQ_ERROR(req_num, "Failed to set action");
 604         return ret;
 605     }
 606
 607     // layer manager task
 608     bool sync_draw_happen = false;
 609     for (const auto &y : g_app_list.getActions(req_num))
 610     {
 611         /*
 612         do_task(y);
 613         */
 614         /*  TODO
 615            but current we can't do do_task,
 616            so divide the processing into lm_layout_change and lm_release
 617         */
 618         if (y.visible)
 619         {
 620             sync_draw_happen = true;
 621             ret = lm_layout_change(y);
 622             if (!ret)
 623             {
 624                 HMI_SEQ_ERROR(req_num, "Failed layout change: %s", y.appid.c_str());
 625                 g_app_list.removeRequest(req_num);
 626                 break;
 627                 // TODO: if transition fails, what should we do?
 628             }
 629             /* g_app_list.lookUpClient(y.appid)->emit_syncdraw(y.role, y.area); */
 630         }
 631         else
 632         {
 633             ret = lm_release(y);
 634             if (!ret)
 635             {
 636                 HMI_SEQ_ERROR(req_num, "Failed release resource: %s", y.appid.c_str());
 637                 g_app_list.removeRequest(req_num);
 638                 break;
 639                 // TODO: if transition fails, what should we do?
 640             }
 641             /* g_app_list.lookUpClient(y.appid)->emit_invisible(y.role, y.area); */
 642         }
 643     }
 644
 645     if (!ret)
 646     {
 647         //this->emit_error(request_seq, 0 /*error_num*/, "error happens"); // test
 648     }
 649     else if (ret && sync_draw_happen)
 650     {
 651         this->set_timer();
 652     }
 653     else
 654     {
 655         g_app_list.removeRequest(req_num); // HACK!!!
 656     }
 657     return ret;
 658 }
 659
 660 void App::lm_layout_change(const char *drawing_name)
 661 {
 662     auto const &surface_id = this->lookup_id(drawing_name);
 663     auto layer_id = this->layers.get_layer_id(*surface_id);
 664     auto o_state = *this->layers.get_layout_state(*surface_id);
 665     struct LayoutState &state = *o_state;
 666
 667     // disable layers that are above our current layer
 668     for (auto const &l : this->layers.mapping)
 669     {
 670         if (l.second.layer_id <= *layer_id)
 671         {
 672             continue;
 673         }
 674
 675         bool flush = false;
 676         if (l.second.state.main != -1)
 677         {
 678             this->deactivate(l.second.state.main);
 679             l.second.state.main = -1;
 680             flush = true;
 681         }
 682
 683         if (l.second.state.sub != -1)
 684         {
 685             this->deactivate(l.second.state.sub);
 686             l.second.state.sub = -1;
 687             flush = true;
 688         }
 689
 690         if (flush)
 691         {
 692             this->layout_commit();
 693         }
 694     }
 695
 696     auto layer = this->layers.get_layer(*layer_id);
 697
 698     if (state.main == -1)
 699     {
 700         this->try_layout(
 701             state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 702                 HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 703                 this->surface_set_layout(*surface_id);
 704                 state = nl;
 705
 706                 // Commit for configuraton
 707                 this->layout_commit();
 708
 709                 std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 710                 compositor::rect area_rect = this->area_info[*surface_id];
 711                 this->emit_syncdraw(drawing_name, str_area.c_str(),
 712                                     area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 713                 this->enqueue_flushdraw(state.main);
 714             });
 715     }
 716     else
 717     {
 718         if (0 == strcmp(drawing_name, "HomeScreen"))
 719         {
 720             this->try_layout(
 721                 state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 722                     HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 723                     std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 724                     compositor::rect area_rect = this->area_info[*surface_id];
 725                     this->emit_syncdraw(drawing_name, str_area.c_str(),
 726                                         area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 727                     this->enqueue_flushdraw(state.main);
 728                 });
 729         }
 730         else
 731         {
 732             bool can_split = this->can_split(state, *surface_id);
 733
 734             if (can_split)
 735             {
 736                 this->try_layout(
 737                     state,
 738                     LayoutState{state.main, *surface_id},
 739                     [&](LayoutState const &nl) {
 740                         HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 741                         std::string main =
 742                             std::move(*this->lookup_name(state.main));
 743
 744                         this->surface_set_layout(state.main, surface_id);
 745                         if (state.sub != *surface_id)
 746                         {
 747                             if (state.sub != -1)
 748                             {
 749                                 this->deactivate(state.sub);
 750                             }
 751                         }
 752                         state = nl;
 753
 754                         // Commit for configuration and visibility(0)
 755                         this->layout_commit();
 756
 757                         std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 758                         std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 759                         compositor::rect area_rect_main = this->area_info[state.main];
 760                         compositor::rect area_rect_sub = this->area_info[*surface_id];
 761                         this->emit_syncdraw(main.c_str(), str_area_main.c_str(),
 762                                             area_rect_main.x, area_rect_main.y,
 763                                             area_rect_main.w, area_rect_main.h);
 764                         this->emit_syncdraw(drawing_name, str_area_sub.c_str(),
 765                                             area_rect_sub.x, area_rect_sub.y,
 766                                             area_rect_sub.w, area_rect_sub.h);
 767                         this->enqueue_flushdraw(state.main);
 768                         this->enqueue_flushdraw(state.sub);
 769                     });
 770             }
 771             else
 772             {
 773                 this->try_layout(
 774                     state, LayoutState{*surface_id}, [&](LayoutState const &nl) {
 775                         HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 776
 777                         this->surface_set_layout(*surface_id);
 778                         if (state.main != *surface_id)
 779                         {
 780                             this->deactivate(state.main);
 781                         }
 782                         if (state.sub != -1)
 783                         {
 784                             if (state.sub != *surface_id)
 785                             {
 786                                 this->deactivate(state.sub);
 787                             }
 788                         }
 789                         state = nl;
 790
 791                         // Commit for configuraton and visibility(0)
 792                         this->layout_commit();
 793
 794                         std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 795                         compositor::rect area_rect = this->area_info[*surface_id];
 796                         this->emit_syncdraw(drawing_name, str_area.c_str(),
 797                                             area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 798                         this->enqueue_flushdraw(state.main);
 799                     });
 800             }
 801         }
 802     }
 803 }
 804
 805 const char *App::check_surface_exist(const char *drawing_name)
 806 {
 807     auto const &surface_id = this->lookup_id(drawing_name);
 808     if (!surface_id)
 809     {
 810         //reply("Surface does not exist");
 811         return "Surface does not exist";
 812     }
 813
 814     if (!this->controller->surface_exists(*surface_id))
 815     {
 816         //reply("Surface does not exist in controller!");
 817         return "Surface does not exist in controller!";
 818     }
 819
 820     auto layer_id = this->layers.get_layer_id(*surface_id);
 821
 822     if (!layer_id)
 823     {
 824         //reply("Surface is not on any layer!");
 825         return "Surface is not on any layer!";
 826     }
 827
 828     auto o_state = *this->layers.get_layout_state(*surface_id);
 829
 830     if (o_state == nullptr)
 831     {
 832         //reply("Could not find layer for surface");
 833         return "Could not find layer for surface";
 834     }
 835
 836     HMI_DEBUG("wm", "surface %d is detected", *surface_id);
 837     return nullptr;
 838     //reply(nullptr);
 839 }
 840
 841 void App::api_activate_surface(char const *appid, char const *drawing_name, char const *drawing_area, const reply_func &reply)
 842 {
 843     ST();
 844
 845     /*
 846    * Check Phase
 847    */
 848
 849     std::string id = appid;
 850     std::string role = drawing_name;
 851     std::string area = drawing_area;
 852
 853     if (!g_app_list.contains(id))
 854     {
 855         reply("app doesn't request 'requestSurface' yet");
 856         return;
 857     }
 858
 859     auto client = g_app_list.lookUpClient(id);
 860
 861     /*
 862    * Queueing Phase
 863    */
 864     unsigned current = g_app_list.currentSequenceNumber();
 865     unsigned requested_num = g_app_list.getSequenceNumber(id);
 866     if (requested_num != 0)
 867     {
 868         HMI_SEQ_INFO(requested_num, "%s %s %s request is already queued", id.c_str(), role.c_str(), area.c_str());
 869         reply("already requested");
 870         return;
 871     }
 872
 873     WMRequest req = WMRequest(id, role, area, Task::TASK_ALLOCATE);
 874     unsigned new_req = g_app_list.addAllocateRequest(req);
 875     g_app_list.reqDump();
 876
 877     HMI_SEQ_DEBUG(current, "%s start sequence with %s, %s", id.c_str(), role.c_str(), area.c_str());
 878
 879     reply(nullptr);
 880     if (new_req != current)
 881     {
 882         // Add request, then invoked after the previous task is finished
 883         HMI_SEQ_DEBUG(new_req, "request is accepted");
 884         return;
 885     }
 886
 887     /*
 888     * Do allocate tasks
 889     */
 890     bool ret = this->do_transition(new_req);
 891
 892     if (!ret)
 893     {
 894         HMI_SEQ_ERROR(new_req, "failed to do_transition");
 895         //this->emit_error()
 896     }
 897 }
 898
 899 void App::api_deactivate_surface(char const *appid, char const *drawing_name, const reply_func &reply)
 900 {
 901     ST();
 902
 903     /*
 904    * Check Phase
 905    */
 906     std::string id = appid;
 907     std::string role = drawing_name;
 908     std::string area = ""; //drawing_area;
 909
 910     if (!g_app_list.contains(id))
 911     {
 912         reply("app doesn't request 'requestSurface' yet");
 913         return;
 914     }
 915     auto client = g_app_list.lookUpClient(id);
 916
 917     /*
 918    * Queueing Phase
 919    */
 920     unsigned current = g_app_list.currentSequenceNumber();
 921     unsigned requested_num = g_app_list.getSequenceNumber(id);
 922     if (requested_num != 0)
 923     {
 924         HMI_SEQ_INFO(requested_num, "%s %s %s request is already queued", id.c_str(), role.c_str(), area.c_str());
 925         reply("already requested");
 926         return;
 927     }
 928
 929     WMRequest req = WMRequest(id, role, area, Task::TASK_RELEASE);
 930     unsigned new_req = g_app_list.addAllocateRequest(req);
 931     g_app_list.reqDump();
 932
 933     HMI_SEQ_DEBUG(current, "%s start sequence with %s, %s", id.c_str(), role.c_str(), area.c_str());
 934
 935     reply(nullptr);
 936     if (new_req != current)
 937     {
 938         // Add request, then invoked after the previous task is finished
 939         HMI_SEQ_DEBUG(new_req, "request is accepted");
 940         return;
 941     }
 942
 943     /*
 944     * Do allocate tasks
 945     */
 946     bool ret = this->do_transition(new_req);
 947
 948     if (!ret)
 949     {
 950         HMI_SEQ_ERROR(new_req, "failed to do_transition");
 951         //this->emit_error()
 952     }
 953 }
 954
 955 void App::enqueue_flushdraw(int surface_id)
 956 {
 957     this->check_flushdraw(surface_id);
 958     HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 959     this->pending_end_draw.push_back(surface_id);
 960 }
 961
 962 void App::check_flushdraw(int surface_id)
 963 {
 964     auto i = std::find(std::begin(this->pending_end_draw),
 965                        std::end(this->pending_end_draw), surface_id);
 966     if (i != std::end(this->pending_end_draw))
 967     {
 968         auto n = this->lookup_name(surface_id);
 969         HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 970                   n ? n->c_str() : "unknown-name", surface_id);
 971         std::swap(this->pending_end_draw[std::distance(
 972                       std::begin(this->pending_end_draw), i)],
 973                   this->pending_end_draw.back());
 974         this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 975     }
 976 }
 977
 978 void App::lm_enddraw(const char *drawing_name)
 979 {
 980     HMI_DEBUG("wm", "end draw %s", drawing_name);
 981     for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++)
 982     {
 983         auto n = this->lookup_name(this->pending_end_draw[i]);
 984         if (n && *n == drawing_name)
 985         {
 986             std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 987             this->pending_end_draw.resize(iend - 1);
 988             this->activate(this->pending_end_draw[i]);
 989             this->emit_flushdraw(drawing_name);
 990         }
 991     }
 992 }
 993
 994 void App::do_enddraw(unsigned request_seq)
 995 {
 996     // get actions
 997     auto actions = g_app_list.getActions(request_seq);
 998     HMI_SEQ_INFO(request_seq, "do endDraw");
 999
1000     for (const auto &act : actions)
1001     {
1002         HMI_SEQ_DEBUG(request_seq, "visible %s", act.role.c_str());
1003         this->lm_enddraw(act.role.c_str());
1004     }
1005
1006     HMI_SEQ_INFO(request_seq, "emit flushDraw");
1007     /*     do
1008     {
1009         // emit flush Draw
1010         //emitFlushDrawToAll(&g_app_list, request_seq);
1011         // emit status change event
1012     } while (!g_app_list.requestFinished());*/
1013 }
1014
1015 void App::process_request()
1016 {
1017     unsigned req = g_app_list.currentSequenceNumber();
1018     HMI_SEQ_DEBUG(req, "Do next request");
1019     do_transition(req);
1020 }
1021
1022 void App::api_enddraw(char const *appid, char const *drawing_name)
1023 {
1024     std::string id(appid);
1025     std::string role(drawing_name);
1026     unsigned current_seq = g_app_list.currentSequenceNumber();
1027     bool result = g_app_list.setEndDrawFinished(current_seq, id, role);
1028
1029     if (!result)
1030     {
1031         HMI_ERROR("wm", "%s doesn't have Window Resource", id.c_str());
1032         return;
1033     }
1034
1035     if (g_app_list.endDrawFullfilled(current_seq))
1036     {
1037         // do task for endDraw
1038         //this->stop_timer();
1039         this->do_enddraw(current_seq);
1040
1041         this->stop_timer();
1042
1043         g_app_list.removeRequest(current_seq);
1044         HMI_SEQ_INFO(current_seq, "Finish request");
1045         g_app_list.next();
1046         if (g_app_list.haveRequest())
1047         {
1048             this->process_request();
1049         }
1050     }
1051     else
1052     {
1053         HMI_SEQ_INFO(current_seq, "Wait other App call endDraw");
1054         return;
1055     }
1056 }
1057
1058 void App::api_ping() { this->dispatch_pending_events(); }
1059
1060 void App::send_event(char const *evname, char const *label)
1061 {
1062     HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
1063
1064     json_object *j = json_object_new_object();
1065     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
1066
1067     int ret = afb_event_push(this->map_afb_event[evname], j);
1068     if (ret != 0)
1069     {
1070         HMI_DEBUG("wm", "afb_event_push failed: %m");
1071     }
1072 }
1073
1074 void App::send_event(char const *evname, char const *label, char const *area,
1075                      int x, int y, int w, int h)
1076 {
1077     HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
1078               __func__, evname, label, area, x, y, w, h);
1079
1080     json_object *j_rect = json_object_new_object();
1081     json_object_object_add(j_rect, kKeyX, json_object_new_int(x));
1082     json_object_object_add(j_rect, kKeyY, json_object_new_int(y));
1083     json_object_object_add(j_rect, kKeyWidth, json_object_new_int(w));
1084     json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
1085
1086     json_object *j = json_object_new_object();
1087     json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
1088     json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
1089     json_object_object_add(j, kKeyDrawingRect, j_rect);
1090
1091     int ret = afb_event_push(this->map_afb_event[evname], j);
1092     if (ret != 0)
1093     {
1094         HMI_DEBUG("wm", "afb_event_push failed: %m");
1095     }
1096 }
1097
1098 /**
1099  * proxied events
1100  */
1101 void App::surface_created(uint32_t surface_id)
1102 {
1103     auto layer_id = this->layers.get_layer_id(surface_id);
1104     if (!layer_id)
1105     {
1106         HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
1107                   surface_id);
1108         return;
1109     }
1110
1111     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
1112
1113     this->controller->layers[*layer_id]->add_surface(surface_id);
1114     this->layout_commit();
1115     // activate the main_surface right away
1116     /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
1117       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
1118
1119       this->api_activate_surface(
1120          this->lookup_name(surface_id).value_or("unknown-name").c_str());
1121    }*/
1122
1123     // search pid from surfaceID
1124
1125     // pick up appid from pid from application manager
1126
1127     // check appid then add it to the client
1128 }
1129
1130 void App::surface_removed(uint32_t surface_id)
1131 {
1132     HMI_DEBUG("wm", "surface_id is %u", surface_id);
1133
1134     g_app_list.removeSurface(surface_id);
1135 }
1136
1137 void App::emit_activated(char const *label)
1138 {
1139     this->send_event(kListEventName[Event_Active], label);
1140 }
1141
1142 void App::emit_deactivated(char const *label)
1143 {
1144     this->send_event(kListEventName[Event_Inactive], label);
1145 }
1146
1147 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h)
1148 {
1149     this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
1150 }
1151
1152 void App::emit_flushdraw(char const *label)
1153 {
1154     this->send_event(kListEventName[Event_FlushDraw], label);
1155 }
1156
1157 void App::emit_visible(char const *label, bool is_visible)
1158 {
1159     this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
1160 }
1161
1162 void App::emit_invisible(char const *label)
1163 {
1164     return emit_visible(label, false);
1165 }
1166
1167 void App::emit_visible(char const *label) { return emit_visible(label, true); }
1168
1169 result<int> App::api_request_surface(char const *appid, char const *drawing_name)
1170 {
1171     auto lid = this->layers.get_layer_id(std::string(drawing_name));
1172     if (!lid)
1173     {
1174         /**
1175        * register drawing_name as fallback and make it displayed.
1176        */
1177         lid = this->layers.get_layer_id(std::string("Fallback"));
1178         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
1179         if (!lid)
1180         {
1181             return Err<int>("Drawing name does not match any role, Fallback is disabled");
1182         }
1183     }
1184
1185     auto rname = this->lookup_id(drawing_name);
1186     if (!rname)
1187     {
1188         // name does not exist yet, allocate surface id...
1189         auto id = int(this->id_alloc.generate_id(drawing_name));
1190         this->layers.add_surface(id, *lid);
1191
1192         // set the main_surface[_name] here and now
1193         if (!this->layers.main_surface_name.empty() &&
1194             this->layers.main_surface_name == drawing_name)
1195         {
1196             this->layers.main_surface = id;
1197             HMI_DEBUG("wm", "Set main_surface id to %u", id);
1198         }
1199
1200         // add client into the db
1201         std::string appid_str(appid);
1202         std::string role(drawing_name);
1203         //g_app_list.addClient(appid_str, role);
1204         g_app_list.addClient(appid_str, *lid, id, role);
1205
1206         return Ok<int>(id);
1207     }
1208
1209     // Check currently registered drawing names if it is already there.
1210     return Err<int>("Surface already present");
1211 }
1212
1213 char const *App::api_request_surface(char const *appid, char const *drawing_name,
1214                                      char const *ivi_id)
1215 {
1216     ST();
1217
1218     auto lid = this->layers.get_layer_id(std::string(drawing_name));
1219     unsigned sid = std::stol(ivi_id);
1220
1221     if (!lid)
1222     {
1223         /**
1224        * register drawing_name as fallback and make it displayed.
1225        */
1226         lid = this->layers.get_layer_id(std::string("Fallback"));
1227         HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
1228         if (!lid)
1229         {
1230             return "Drawing name does not match any role, Fallback is disabled";
1231         }
1232     }
1233
1234     auto rname = this->lookup_id(drawing_name);
1235
1236     if (rname)
1237     {
1238         return "Surface already present";
1239     }
1240
1241     // register pair drawing_name and ivi_id
1242     this->id_alloc.register_name_id(drawing_name, sid);
1243     this->layers.add_surface(sid, *lid);
1244
1245     // this surface is already created
1246     HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
1247
1248     this->controller->layers[*lid]->add_surface(sid);
1249     this->layout_commit();
1250
1251     return nullptr;
1252 }
1253
1254 result<json_object *> App::api_get_display_info()
1255 {
1256     // Check controller
1257     if (!this->controller)
1258     {
1259         return Err<json_object *>("ivi_controller global not available");
1260     }
1261
1262     // Set display info
1263     compositor::size o_size = this->controller->output_size;
1264     compositor::size p_size = this->controller->physical_size;
1265
1266     json_object *object = json_object_new_object();
1267     json_object_object_add(object, kKeyWidthPixel, json_object_new_int(o_size.w));
1268     json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
1269     json_object_object_add(object, kKeyWidthMm, json_object_new_int(p_size.w));
1270     json_object_object_add(object, kKeyHeightMm, json_object_new_int(p_size.h));
1271
1272     return Ok<json_object *>(object);
1273 }
1274
1275 result<json_object *> App::api_get_area_info(char const *drawing_name)
1276 {
1277     HMI_DEBUG("wm", "called");
1278
1279     // Check drawing name, surface/layer id
1280     auto const &surface_id = this->lookup_id(drawing_name);
1281     if (!surface_id)
1282     {
1283         return Err<json_object *>("Surface does not exist");
1284     }
1285
1286     if (!this->controller->surface_exists(*surface_id))
1287     {
1288         return Err<json_object *>("Surface does not exist in controller!");
1289     }
1290
1291     auto layer_id = this->layers.get_layer_id(*surface_id);
1292     if (!layer_id)
1293     {
1294         return Err<json_object *>("Surface is not on any layer!");
1295     }
1296
1297     auto o_state = *this->layers.get_layout_state(*surface_id);
1298     if (o_state == nullptr)
1299     {
1300         return Err<json_object *>("Could not find layer for surface");
1301     }
1302
1303     struct LayoutState &state = *o_state;
1304     if ((state.main != *surface_id) && (state.sub != *surface_id))
1305     {
1306         return Err<json_object *>("Surface is inactive");
1307     }
1308
1309     // Set area rectangle
1310     compositor::rect area_info = this->area_info[*surface_id];
1311     json_object *object = json_object_new_object();
1312     json_object_object_add(object, kKeyX, json_object_new_int(area_info.x));
1313     json_object_object_add(object, kKeyY, json_object_new_int(area_info.y));
1314     json_object_object_add(object, kKeyWidth, json_object_new_int(area_info.w));
1315     json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
1316
1317     return Ok<json_object *>(object);
1318 }
1319
1320 void App::activate(int id)
1321 {
1322     auto ip = this->controller->sprops.find(id);
1323     if (ip != this->controller->sprops.end())
1324     {
1325         this->controller->surfaces[id]->set_visibility(1);
1326         char const *label =
1327             this->lookup_name(id).value_or("unknown-name").c_str();
1328
1329         // FOR CES DEMO >>>
1330         if ((0 == strcmp(label, "Radio")) || (0 == strcmp(label, "MediaPlayer")) || (0 == strcmp(label, "Music")) || (0 == strcmp(label, "Navigation")))
1331         {
1332             for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i)
1333             {
1334                 if (id == *i)
1335                 {
1336                     // Remove id
1337                     this->surface_bg.erase(i);
1338
1339                     // Remove from BG layer (999)
1340                     HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
1341                     this->controller->layers[999]->remove_surface(id);
1342
1343                     // Add to FG layer (1001)
1344                     HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
1345                     this->controller->layers[1001]->add_surface(id);
1346
1347                     for (int j : this->surface_bg)
1348                     {
1349                         HMI_DEBUG("wm", "Stored id:%d", j);
1350                     }
1351                     break;
1352                 }
1353             }
1354         }
1355         // <<< FOR CES DEMO
1356         this->layout_commit();
1357
1358         this->emit_visible(label);
1359         this->emit_activated(label);
1360     }
1361 }
1362
1363 void App::deactivate(int id)
1364 {
1365     auto ip = this->controller->sprops.find(id);
1366     if (ip != this->controller->sprops.end())
1367     {
1368         char const *label =
1369             this->lookup_name(id).value_or("unknown-name").c_str();
1370
1371         // FOR CES DEMO >>>
1372         if ((0 == strcmp(label, "Radio")) || (0 == strcmp(label, "MediaPlayer")) || (0 == strcmp(label, "Music")) || (0 == strcmp(label, "Navigation")))
1373         {
1374
1375             // Store id
1376             this->surface_bg.push_back(id);
1377
1378             // Remove from FG layer (1001)
1379             HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
1380             this->controller->layers[1001]->remove_surface(id);
1381
1382             // Add to BG layer (999)
1383             HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
1384             this->controller->layers[999]->add_surface(id);
1385
1386             for (int j : surface_bg)
1387             {
1388                 HMI_DEBUG("wm", "Stored id:%d", j);
1389             }
1390         }
1391         else
1392         {
1393             this->controller->surfaces[id]->set_visibility(0);
1394         }
1395         // <<< FOR CES DEMO
1396
1397         this->emit_deactivated(label);
1398         this->emit_invisible(label);
1399     }
1400 }
1401
1402 void App::deactivate_main_surface()
1403 {
1404     this->layers.main_surface = -1;
1405     std::string appid = "HomeScreen";
1406     this->api_deactivate_surface(appid.c_str(), this->layers.main_surface_name.c_str(), [](const char *) {});
1407 }
1408
1409 bool App::can_split(struct LayoutState const &state, int new_id)
1410 {
1411     if (state.main != -1 && state.main != new_id)
1412     {
1413         auto new_id_layer = this->layers.get_layer_id(new_id).value();
1414         auto current_id_layer = this->layers.get_layer_id(state.main).value();
1415
1416         // surfaces are on separate layers, don't bother.
1417         if (new_id_layer != current_id_layer)
1418         {
1419             return false;
1420         }
1421
1422         std::string const &new_id_str = this->lookup_name(new_id).value();
1423         std::string const &cur_id_str = this->lookup_name(state.main).value();
1424
1425         auto const &layer = this->layers.get_layer(new_id_layer);
1426
1427         HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
1428
1429         if (layer->layouts.empty())
1430         {
1431             return false;
1432         }
1433
1434         for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++)
1435         {
1436             HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
1437             auto rem = std::regex(i->main_match);
1438             if (std::regex_match(cur_id_str, rem))
1439             {
1440                 // build the second one only if the first already matched
1441                 HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
1442                 auto res = std::regex(i->sub_match);
1443                 if (std::regex_match(new_id_str, res))
1444                 {
1445                     HMI_DEBUG("wm", "layout matched!");
1446                     return true;
1447                 }
1448             }
1449         }
1450     }
1451
1452     return false;
1453 }
1454
1455 void App::try_layout(struct LayoutState & /*state*/,
1456                      struct LayoutState const &new_layout,
1457                      std::function<void(LayoutState const &nl)> apply)
1458 {
1459     if (this->policy.layout_is_valid(new_layout))
1460     {
1461         apply(new_layout);
1462     }
1463 }
1464
1465 /**
1466  * controller_hooks
1467  */
1468 void controller_hooks::surface_created(uint32_t surface_id)
1469 {
1470     this->app->surface_created(surface_id);
1471 }
1472
1473 void controller_hooks::surface_removed(uint32_t surface_id)
1474 {
1475     this->app->surface_removed(surface_id);
1476 }
1477
1478 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1479                                           uint32_t /*v*/) {}
1480
1481 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1482                                                      uint32_t /*x*/,
1483                                                      uint32_t /*y*/,
1484                                                      uint32_t /*w*/,
1485                                                      uint32_t /*h*/) {}
1486
1487 } // namespace wm