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