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