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 "allocate_queue.hpp"
  40
  41 extern "C" {
  42     #include <systemd/sd-event.h>
  43 }
  44
  45 #define TIME_OUT    1000000UL   /* 1s */
  46
  47 namespace wm {
  48
  49 /* DrawingArea name used by "{layout}.{area}" */
  50 const char kNameLayoutNormal[] = "normal";
  51 const char kNameLayoutSplit[]  = "split";
  52 const char kNameAreaFull[]     = "full";
  53 const char kNameAreaMain[]     = "main";
  54 const char kNameAreaSub[]      = "sub";
  55
  56 /* Key for json obejct */
  57 const char kKeyDrawingName[] = "drawing_name";
  58 const char kKeyDrawingArea[] = "drawing_area";
  59 const char kKeyDrawingRect[] = "drawing_rect";
  60 const char kKeyX[]           = "x";
  61 const char kKeyY[]           = "y";
  62 const char kKeyWidth[]       = "width";
  63 const char kKeyHeight[]      = "height";
  64 const char kKeyWidthPixel[]  = "width_pixel";
  65 const char kKeyHeightPixel[] = "height_pixel";
  66 const char kKeyWidthMm[]     = "width_mm";
  67 const char kKeyHeightMm[]    = "height_mm";
  68
  69 static const std::string task_allocate = "allocate";
  70 static const std::string task_release = "release";
  71 static sd_event_source *timer_ev_src = nullptr;
  72
  73 static AllocateRequestList allocate_list;
  74
  75 namespace {
  76
  77 using nlohmann::json;
  78
  79 result<json> file_to_json(char const *filename) {
  80    json j;
  81    std::ifstream i(filename);
  82    if (i.fail()) {
  83       HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  84       j = default_layers_json;
  85    }
  86    else {
  87       i >> j;
  88    }
  89
  90    return Ok(j);
  91 }
  92
  93 struct result<layer_map> load_layer_map(char const *filename) {
  94    HMI_DEBUG("wm", "loading IDs from %s", filename);
  95
  96    auto j = file_to_json(filename);
  97    if (j.is_err()) {
  98       return Err<layer_map>(j.unwrap_err());
  99    }
 100    json jids = j.unwrap();
 101
 102    return to_layer_map(jids);
 103 }
 104
 105
 106 static int processTimerHandler(sd_event_source *s, uint64_t usec, void *userdata){
 107     HMI_NOTICE("wm", "Time out occurs because the client replys endDraw slow, so revert the request");
 108     reinterpret_cast<wm::App *>(userdata)->timerHandler();
 109     return 0;
 110 }
 111
 112 }  // namespace
 113
 114 void App::timerHandler(){
 115     // TODO: write reset process
 116     unsigned seq = allocate_list.currentSequenceNumber();
 117     allocate_list.removeRequest(seq);
 118 }
 119
 120 /**
 121  * App Impl
 122  */
 123 App::App(wl::display *d)
 124    : chooks{this},
 125      display{d},
 126      controller{},
 127      outputs(),
 128      config(),
 129      layers(),
 130      id_alloc{},
 131      pending_events(false),
 132      policy{} {
 133    try {
 134       {
 135          auto l = load_layer_map(
 136             this->config.get_string("layers.json").value().c_str());
 137          if (l.is_ok()) {
 138             this->layers = l.unwrap();
 139          } else {
 140             HMI_ERROR("wm", "%s", l.err().value());
 141          }
 142       }
 143    } catch (std::exception &e) {
 144       HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 145    }
 146 }
 147
 148 int App::init() {
 149    if (!this->display->ok()) {
 150       return -1;
 151    }
 152
 153    if (this->layers.mapping.empty()) {
 154       HMI_ERROR("wm", "No surface -> layer mapping loaded");
 155       return -1;
 156    }
 157
 158    // Make afb event
 159    for (int i=Event_Val_Min; i<=Event_Val_Max; i++) {
 160       map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 161    }
 162
 163    this->display->add_global_handler(
 164       "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 165          this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 166       });
 167
 168    this->display->add_global_handler(
 169       "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
 170          this->controller =
 171             std::make_unique<struct compositor::controller>(r, name, v);
 172
 173          // Init controller hooks
 174          this->controller->chooks = &this->chooks;
 175
 176          // This protocol needs the output, so lets just add our mapping here...
 177          this->controller->add_proxy_to_id_mapping(
 178             this->outputs.back()->proxy.get(),
 179             wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 180                this->outputs.back()->proxy.get())));
 181
 182          // Create screen
 183          this->controller->create_screen(this->outputs.back()->proxy.get());
 184
 185          // Set display to controller
 186          this->controller->display = this->display;
 187       });
 188
 189    // First level objects
 190    this->display->roundtrip();
 191    // Second level objects
 192    this->display->roundtrip();
 193    // Third level objects
 194    this->display->roundtrip();
 195
 196    return init_layers();
 197 }
 198
 199 int App::dispatch_pending_events() {
 200    if (this->pop_pending_events()) {
 201       this->display->dispatch_pending();
 202       return 0;
 203    }
 204    return -1;
 205 }
 206
 207 bool App::pop_pending_events() {
 208    bool x{true};
 209    return this->pending_events.compare_exchange_strong(
 210       x, false, std::memory_order_consume);
 211 }
 212
 213 void App::set_pending_events() {
 214    this->pending_events.store(true, std::memory_order_release);
 215 }
 216
 217 optional<int> App::lookup_id(char const *name) {
 218    return this->id_alloc.lookup(std::string(name));
 219 }
 220 optional<std::string> App::lookup_name(int id) {
 221    return this->id_alloc.lookup(id);
 222 }
 223
 224 /**
 225  * init_layers()
 226  */
 227 int App::init_layers() {
 228    if (!this->controller) {
 229       HMI_ERROR("wm", "ivi_controller global not available");
 230       return -1;
 231    }
 232
 233    if (this->outputs.empty()) {
 234       HMI_ERROR("wm", "no output was set up!");
 235       return -1;
 236    }
 237
 238    auto &c = this->controller;
 239
 240    auto &o = this->outputs.front();
 241    auto &s = c->screens.begin()->second;
 242    auto &layers = c->layers;
 243
 244    // Write output dimensions to ivi controller...
 245    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 246    c->physical_size = compositor::size{uint32_t(o->physical_width),
 247                                        uint32_t(o->physical_height)};
 248
 249    // Clear scene
 250    layers.clear();
 251
 252    // Clear screen
 253    s->clear();
 254
 255    // Quick and dirty setup of layers
 256    for (auto const &i : this->layers.mapping) {
 257       c->layer_create(i.second.layer_id, o->width, o->height);
 258       auto &l = layers[i.second.layer_id];
 259       l->set_destination_rectangle(0, 0, o->width, o->height);
 260       l->set_visibility(1);
 261       HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 262                i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 263    }
 264
 265    // Add layers to screen
 266    s->set_render_order(this->layers.layers);
 267
 268    this->layout_commit();
 269
 270    return 0;
 271 }
 272
 273 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id) {
 274    if (!this->controller->surface_exists(surface_id)) {
 275       HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 276       return;
 277    }
 278
 279    auto o_layer_id = this->layers.get_layer_id(surface_id);
 280
 281    if (!o_layer_id) {
 282       HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 283       return;
 284    }
 285
 286    uint32_t layer_id = *o_layer_id;
 287
 288    auto const &layer = this->layers.get_layer(layer_id);
 289    auto rect = layer.value().rect;
 290    auto &s = this->controller->surfaces[surface_id];
 291
 292    int x = rect.x;
 293    int y = rect.y;
 294    int w = rect.w;
 295    int h = rect.h;
 296
 297    // less-than-0 values refer to MAX + 1 - $VALUE
 298    // e.g. MAX is either screen width or height
 299    if (w < 0) {
 300       w = this->controller->output_size.w + 1 + w;
 301    }
 302    if (h < 0) {
 303       h = this->controller->output_size.h + 1 + h;
 304    }
 305
 306    if (sub_surface_id) {
 307       if (o_layer_id != this->layers.get_layer_id(*sub_surface_id)) {
 308          HMI_ERROR("wm",
 309             "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 310             surface_id, *sub_surface_id);
 311          return;
 312       }
 313
 314       int x_off = 0;
 315       int y_off = 0;
 316
 317       // split along major axis
 318       if (w > h) {
 319          w /= 2;
 320          x_off = w;
 321       } else {
 322          h /= 2;
 323          y_off = h;
 324       }
 325
 326       auto &ss = this->controller->surfaces[*sub_surface_id];
 327
 328       HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 329                *sub_surface_id, layer_id);
 330
 331       // set destination to the display rectangle
 332       ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 333
 334       this->area_info[*sub_surface_id].x = x;
 335       this->area_info[*sub_surface_id].y = y;
 336       this->area_info[*sub_surface_id].w = w;
 337       this->area_info[*sub_surface_id].h = h;
 338    }
 339
 340    HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 341             layer_id);
 342
 343    // set destination to the display rectangle
 344    s->set_destination_rectangle(x, y, w, h);
 345
 346    // update area information
 347    this->area_info[surface_id].x = x;
 348    this->area_info[surface_id].y = y;
 349    this->area_info[surface_id].w = w;
 350    this->area_info[surface_id].h = h;
 351
 352    HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 353             surface_id, layer_id, x, y, w, h);
 354 }
 355
 356 void App::layout_commit() {
 357    this->controller->commit_changes();
 358    this->display->flush();
 359 }
 360
 361 void App::do_allocate_window_resource(unsigned sequence_number){
 362     do {
 363         // TODO: Tasks will be changed according to policy manager result
 364         // do task(onTransition (activate))
 365     }while (!allocate_list.requestFinished());
 366
 367     // lm_.updateLayout(jobj);
 368    // TODO: emit syncDraw with application
 369    do{
 370         //client->emit_syncdraw(role);
 371    }while (!allocate_list.requestFinished());
 372
 373    // is the below necessary?
 374    //allocate_list.setAllocated(sequence_number);
 375
 376    if(timer_ev_src != nullptr){
 377        // firsttime set into sd_event
 378        int ret = sd_event_add_time(afb_daemon_get_event_loop(), &timer_ev_src,
 379           CLOCK_BOOTTIME, time(NULL) + TIME_OUT, 0, processTimerHandler, this);
 380        if(ret < 0){
 381            HMI_ERROR("wm", "Can't set timer");
 382        }
 383    }
 384    else{
 385        // update timer limitation after second time
 386        sd_event_source_set_time(timer_ev_src, time(NULL) + TIME_OUT);
 387        sd_event_source_set_enabled(timer_ev_src, SD_EVENT_ONESHOT);
 388    }
 389 }
 390
 391 void App::api_activate_surface(char const *appid, char const *drawing_name, char const *drawing_area, const reply_func &reply) {
 392    ST();
 393
 394    /*
 395    * Check Phase
 396    */
 397
 398    auto const &surface_id = this->lookup_id(drawing_name);
 399    std::string id  = appid;
 400    std::string role = drawing_name;
 401    std::string area = drawing_area;
 402
 403    WMClient* client = allocate_list.lookUpClient(id);
 404    if(!client){
 405        reply("app doesn't request 'requestSurface' yet");
 406        return;
 407    }
 408
 409    // json_object* newState = checkPolicy(role);
 410    /* The following error check is not necessary because main.cpp will reject the message form not registered object
 411    if(client != nullptr){
 412        reply("client is not registered");
 413        return;
 414    } */
 415
 416    // get surfaceID from role
 417    /* auto const &surface_id_tmp = client->surfaceID(role);
 418    auto const &layer_id_tmp = client->layerID();
 419
 420    if(!surface_id_tmp && !layer_id_tmp){
 421        reply("invalid window manager client");
 422        HMI_DEBUG("appid:%s, requested_role:%s, surfaceID:%d in layer %d",
 423           appid, role, surface_id_tmp, layer_id_tmp);
 424    } */
 425
 426    /*
 427    * Queueing Phase
 428    */
 429    unsigned current = allocate_list.currentSequenceNumber();
 430    unsigned requested_num = allocate_list.getSequenceNumber(id, role, area);
 431    if(requested_num != 0){
 432        HMI_SEQ_INFO(requested_num, "%s %s %s request is already queued", id.c_str(), role.c_str(), area.c_str());
 433        reply("already requested");
 434        return;
 435    }
 436
 437    WMRequest req = WMRequest(id, role, area, Task::TASK_ALLOCATE);
 438    unsigned new_req = allocate_list.addAllocateRequest(req);
 439
 440    HMI_SEQ_DEBUG(new_req, "%s start sequence with %s, %s", id.c_str(), role.c_str(), area.c_str());
 441
 442     if(new_req != current){
 443        // Add request, then invoked after the previous task is finished
 444        HMI_SEQ_DEBUG(new_req, "request is accepted");
 445        reply(nullptr);
 446        return;
 447     }
 448
 449     /*
 450     * Do allocate tasks
 451     */
 452     this->do_allocate_window_resource(new_req);
 453
 454    if (!surface_id)
 455    {
 456        reply("Surface does not exist");
 457        return;
 458        }
 459
 460    if (!this->controller->surface_exists(*surface_id)) {
 461       reply("Surface does not exist in controller!");
 462       return;
 463    }
 464
 465    auto layer_id = this->layers.get_layer_id(*surface_id);
 466
 467    if (!layer_id) {
 468       reply("Surface is not on any layer!");
 469       return;
 470    }
 471
 472    auto o_state = *this->layers.get_layout_state(*surface_id);
 473
 474    if (o_state == nullptr) {
 475       reply("Could not find layer for surface");
 476       return;
 477    }
 478
 479    HMI_DEBUG("wm", "surface %d is detected", *surface_id);
 480    reply(nullptr);
 481
 482    struct LayoutState &state = *o_state;
 483
 484    // disable layers that are above our current layer
 485    for (auto const &l : this->layers.mapping) {
 486       if (l.second.layer_id <= *layer_id) {
 487          continue;
 488       }
 489
 490       bool flush = false;
 491       if (l.second.state.main != -1) {
 492          this->deactivate(l.second.state.main);
 493          l.second.state.main = -1;
 494          flush = true;
 495       }
 496
 497       if (l.second.state.sub != -1) {
 498          this->deactivate(l.second.state.sub);
 499          l.second.state.sub = -1;
 500          flush = true;
 501       }
 502
 503       if (flush) {
 504          this->layout_commit();
 505       }
 506    }
 507
 508    auto layer = this->layers.get_layer(*layer_id);
 509
 510    if (state.main == -1) {
 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    } else {
 527       if (0 == strcmp(drawing_name, "HomeScreen")) {
 528          this->try_layout(
 529             state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 530                HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 531                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 532                compositor::rect area_rect = this->area_info[*surface_id];
 533                this->emit_syncdraw(drawing_name, str_area.c_str(),
 534                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 535                this->enqueue_flushdraw(state.main);
 536             });
 537       } else {
 538          bool can_split = this->can_split(state, *surface_id);
 539
 540          if (can_split) {
 541             this->try_layout(
 542                state,
 543                LayoutState{state.main, *surface_id},
 544                [&] (LayoutState const &nl) {
 545                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 546                   std::string main =
 547                      std::move(*this->lookup_name(state.main));
 548
 549                   this->surface_set_layout(state.main, surface_id);
 550                   if (state.sub != *surface_id) {
 551                       if (state.sub != -1) {
 552                          this->deactivate(state.sub);
 553                       }
 554                   }
 555                   state = nl;
 556
 557                   // Commit for configuration and visibility(0)
 558                   this->layout_commit();
 559
 560                   std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 561                   std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 562                   compositor::rect area_rect_main = this->area_info[state.main];
 563                   compositor::rect area_rect_sub = this->area_info[*surface_id];
 564                   this->emit_syncdraw(main.c_str(), str_area_main.c_str(),
 565                                       area_rect_main.x, area_rect_main.y,
 566                                       area_rect_main.w, area_rect_main.h);
 567                   this->emit_syncdraw(drawing_name, str_area_sub.c_str(),
 568                                       area_rect_sub.x, area_rect_sub.y,
 569                                       area_rect_sub.w, area_rect_sub.h);
 570                   this->enqueue_flushdraw(state.main);
 571                   this->enqueue_flushdraw(state.sub);
 572                });
 573          } else {
 574             this->try_layout(
 575                state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 576                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 577
 578                   this->surface_set_layout(*surface_id);
 579                   if (state.main != *surface_id) {
 580                       this->deactivate(state.main);
 581                   }
 582                   if (state.sub != -1) {
 583                       if (state.sub != *surface_id) {
 584                          this->deactivate(state.sub);
 585                       }
 586                   }
 587                   state = nl;
 588
 589                   // Commit for configuraton and visibility(0)
 590                   this->layout_commit();
 591
 592                   std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 593                   compositor::rect area_rect = this->area_info[*surface_id];
 594                   this->emit_syncdraw(drawing_name, str_area.c_str(),
 595                                       area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 596                   this->enqueue_flushdraw(state.main);
 597                });
 598          }
 599       }
 600    }
 601 }
 602
 603 void App::api_deactivate_surface(char const *appid, char const *drawing_name, const reply_func &reply) {
 604    ST();
 605    auto const &surface_id = this->lookup_id(drawing_name);
 606
 607    std::string id = appid;
 608    WMClient* client = allocate_list.lookUpClient(id);
 609
 610    if(!client){
 611        HMI_ERROR("wm", "client %s is not registered", appid);
 612    }
 613
 614    if (!surface_id) {
 615       reply ("Surface does not exist");
 616       return;
 617    }
 618
 619    if (*surface_id == this->layers.main_surface) {
 620       reply("Cannot deactivate main_surface");
 621       return;
 622    }
 623
 624    auto o_state = *this->layers.get_layout_state(*surface_id);
 625
 626    if (o_state == nullptr) {
 627       reply("Could not find layer for surface");
 628       return;
 629    }
 630
 631    struct LayoutState &state = *o_state;
 632
 633    if (state.main == -1) {
 634       reply("No surface active");
 635       return;
 636    }
 637
 638    // Check against main_surface, main_surface_name is the configuration item.
 639    if (*surface_id == this->layers.main_surface) {
 640       HMI_DEBUG("wm", "Refusing to deactivate main_surface %d", *surface_id);
 641       reply(nullptr);
 642       return;
 643    }
 644    if((state.main == *surface_id) && (state.sub == *surface_id)){
 645        reply("Surface is not active");
 646        return;
 647    }
 648    reply(nullptr);
 649
 650    if (state.main == *surface_id) {
 651       if (state.sub != -1) {
 652          this->try_layout(
 653             state, LayoutState{state.sub, -1}, [&] (LayoutState const &nl) {
 654                std::string sub = std::move(*this->lookup_name(state.sub));
 655
 656                this->deactivate(*surface_id);
 657                this->surface_set_layout(state.sub);
 658                state = nl;
 659
 660                this->layout_commit();
 661                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 662                compositor::rect area_rect = this->area_info[state.sub];
 663                this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 664                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 665                this->enqueue_flushdraw(state.sub);
 666             });
 667       } else {
 668          this->try_layout(state, LayoutState{-1, -1}, [&] (LayoutState const &nl) {
 669             this->deactivate(*surface_id);
 670             state = nl;
 671             this->layout_commit();
 672          });
 673       }
 674    } else if (state.sub == *surface_id) {
 675       this->try_layout(
 676          state, LayoutState{state.main, -1}, [&] (LayoutState const &nl) {
 677             std::string main = std::move(*this->lookup_name(state.main));
 678
 679             this->deactivate(*surface_id);
 680             this->surface_set_layout(state.main);
 681             state = nl;
 682
 683             this->layout_commit();
 684             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 685             compositor::rect area_rect = this->area_info[state.main];
 686             this->emit_syncdraw(main.c_str(), str_area.c_str(),
 687                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 688             this->enqueue_flushdraw(state.main);
 689          });
 690    }
 691 }
 692
 693 void App::enqueue_flushdraw(int surface_id) {
 694    this->check_flushdraw(surface_id);
 695    HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 696    this->pending_end_draw.push_back(surface_id);
 697 }
 698
 699 void App::check_flushdraw(int surface_id) {
 700    auto i = std::find(std::begin(this->pending_end_draw),
 701                       std::end(this->pending_end_draw), surface_id);
 702    if (i != std::end(this->pending_end_draw)) {
 703       auto n = this->lookup_name(surface_id);
 704       HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 705                n ? n->c_str() : "unknown-name", surface_id);
 706       std::swap(this->pending_end_draw[std::distance(
 707                    std::begin(this->pending_end_draw), i)],
 708                 this->pending_end_draw.back());
 709       this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 710    }
 711 }
 712
 713 void App::do_enddraw(unsigned sequence_number){
 714     HMI_SEQ_INFO(sequence_number, "do endDraw");
 715     do{
 716         // make visible application
 717     }while(!allocate_list.requestFinished());
 718
 719     HMI_SEQ_INFO(sequence_number, "emit flushDraw");
 720     do{
 721         // emit flush Draw
 722         //emitFlushDrawToAll(&allocate_list, request_seq);
 723         // emit status change event
 724     }while(!allocate_list.requestFinished());
 725 }
 726
 727 void App::process_request(){
 728
 729 }
 730
 731 void App::api_enddraw(char const *appid, char const *drawing_name) {
 732     unsigned request_seq = allocate_list.lookUpAllocatingApp(appid);
 733     unsigned current_seq = allocate_list.currentSequenceNumber();
 734     if(current_seq != request_seq){
 735         if(request_seq == 0){
 736             HMI_ERROR("wm", "You don't have Window Resource");
 737         }
 738         else{
 739             HMI_ERROR("wm", "unknown error. Application may not obey the sequence manner. please call endDraw after syncDraw");
 740         }
 741         return;
 742     }
 743
 744     std::string role = drawing_name;
 745     //std::string area = drawing_area;
 746     allocate_list.setEndDrawFinished(request_seq, role);
 747
 748     if(allocate_list.endDrawFullfilled(request_seq)){
 749         // do task for endDraw
 750         this->do_enddraw(request_seq);
 751         allocate_list.removeRequest(request_seq);
 752         HMI_SEQ_INFO(request_seq, "Finish sequence");
 753         allocate_list.setCurrentSequence(request_seq + 1);
 754         if(allocate_list.haveRequest()){
 755             this->process_request();
 756         }
 757     }
 758     else{
 759         HMI_SEQ_INFO(request_seq, "Wait other App call endDraw");
 760         return;
 761     }
 762    for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
 763       auto n = this->lookup_name(this->pending_end_draw[i]);
 764       if (n && *n == drawing_name) {
 765          std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 766          this->pending_end_draw.resize(iend - 1);
 767          this->activate(this->pending_end_draw[i]);
 768          this->emit_flushdraw(drawing_name);
 769       }
 770    }
 771 }
 772
 773 void App::api_ping() { this->dispatch_pending_events(); }
 774
 775 void App::send_event(char const *evname, char const *label){
 776    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 777
 778    json_object *j = json_object_new_object();
 779    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 780
 781    int ret = afb_event_push(this->map_afb_event[evname], j);
 782    if (ret != 0) {
 783       HMI_DEBUG("wm", "afb_event_push failed: %m");
 784    }
 785 }
 786
 787 void App::send_event(char const *evname, char const *label, char const *area,
 788                              int x, int y, int w, int h) {
 789    HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 790              __func__, evname, label, area, x, y, w, h);
 791
 792    json_object *j_rect = json_object_new_object();
 793    json_object_object_add(j_rect, kKeyX,      json_object_new_int(x));
 794    json_object_object_add(j_rect, kKeyY,      json_object_new_int(y));
 795    json_object_object_add(j_rect, kKeyWidth,  json_object_new_int(w));
 796    json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 797
 798    json_object *j = json_object_new_object();
 799    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 800    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 801    json_object_object_add(j, kKeyDrawingRect, j_rect);
 802
 803    int ret = afb_event_push(this->map_afb_event[evname], j);
 804    if (ret != 0) {
 805       HMI_DEBUG("wm", "afb_event_push failed: %m");
 806    }
 807 }
 808
 809 /**
 810  * proxied events
 811  */
 812 void App::surface_created(uint32_t surface_id) {
 813    auto layer_id = this->layers.get_layer_id(surface_id);
 814    if (!layer_id) {
 815       HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 816                surface_id);
 817       return;
 818    }
 819
 820    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 821
 822    this->controller->layers[*layer_id]->add_surface(surface_id);
 823    this->layout_commit();
 824    // activate the main_surface right away
 825    /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 826       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 827
 828       this->api_activate_surface(
 829          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 830    }*/
 831 }
 832
 833 void App::surface_removed(uint32_t surface_id) {
 834    HMI_DEBUG("wm", "surface_id is %u", surface_id);
 835
 836    // We cannot normally deactivate the main_surface, so be explicit
 837    // about it:
 838    if (int(surface_id) == this->layers.main_surface) {
 839       this->deactivate_main_surface();
 840    } else {
 841       auto drawing_name = this->lookup_name(surface_id);
 842       if (drawing_name) {
 843          std::string appid = "";
 844          /* const WMClient *client = lookUpClient(surface_id);
 845          appid = client->appID();
 846
 847          */
 848          this->api_deactivate_surface(appid.c_str(), drawing_name->c_str(), [](const char*){});
 849       }
 850    }
 851
 852    this->id_alloc.remove_id(surface_id);
 853    this->layers.remove_surface(surface_id);
 854 }
 855
 856 void App::emit_activated(char const *label) {
 857    this->send_event(kListEventName[Event_Active], label);
 858 }
 859
 860 void App::emit_deactivated(char const *label) {
 861    this->send_event(kListEventName[Event_Inactive], label);
 862 }
 863
 864 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h) {
 865    this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 866 }
 867
 868 void App::emit_flushdraw(char const *label) {
 869    this->send_event(kListEventName[Event_FlushDraw], label);
 870 }
 871
 872 void App::emit_visible(char const *label, bool is_visible) {
 873    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 874 }
 875
 876 void App::emit_invisible(char const *label) {
 877    return emit_visible(label, false);
 878 }
 879
 880 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 881
 882 result<int> App::api_request_surface(char const * appid, char const *drawing_name) {
 883    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 884    if (!lid) {
 885       /**
 886        * register drawing_name as fallback and make it displayed.
 887        */
 888       lid = this->layers.get_layer_id(std::string("Fallback"));
 889       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 890       if(!lid){
 891           return Err<int>("Drawing name does not match any role, Fallback is disabled");
 892       }
 893    }
 894
 895    auto rname = this->lookup_id(drawing_name);
 896    if (!rname) {
 897       // name does not exist yet, allocate surface id...
 898       auto id = int(this->id_alloc.generate_id(drawing_name));
 899       this->layers.add_surface(id, *lid);
 900
 901       // set the main_surface[_name] here and now
 902       if (!this->layers.main_surface_name.empty() &&
 903           this->layers.main_surface_name == drawing_name) {
 904          this->layers.main_surface = id;
 905          HMI_DEBUG("wm", "Set main_surface id to %u", id);
 906       }
 907
 908       // add client into the db
 909       WMClient* client = new WMClient(appid, *lid, id, drawing_name); // role is drawing_name for now
 910       allocate_list.addClient(client);
 911
 912       return Ok<int>(id);
 913    }
 914
 915    // Check currently registered drawing names if it is already there.
 916    return Err<int>("Surface already present");
 917 }
 918
 919 char const *App::api_request_surface(char const *appid, char const *drawing_name,
 920                                      char const *ivi_id) {
 921    ST();
 922
 923    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 924    unsigned sid = std::stol(ivi_id);
 925
 926    if (!lid) {
 927       /**
 928        * register drawing_name as fallback and make it displayed.
 929        */
 930       lid = this->layers.get_layer_id(std::string("Fallback"));
 931       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 932       if(!lid){
 933           return "Drawing name does not match any role, Fallback is disabled";
 934       }
 935    }
 936
 937    auto rname = this->lookup_id(drawing_name);
 938
 939    if (rname) {
 940        return "Surface already present";
 941    }
 942
 943    // register pair drawing_name and ivi_id
 944    this->id_alloc.register_name_id(drawing_name, sid);
 945    this->layers.add_surface(sid, *lid);
 946
 947    // this surface is already created
 948    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 949
 950    this->controller->layers[*lid]->add_surface(sid);
 951    this->layout_commit();
 952
 953    return nullptr;
 954 }
 955
 956 result<json_object *> App::api_get_display_info() {
 957    // Check controller
 958    if (!this->controller) {
 959       return Err<json_object *>("ivi_controller global not available");
 960    }
 961
 962    // Set display info
 963    compositor::size o_size = this->controller->output_size;
 964    compositor::size p_size = this->controller->physical_size;
 965
 966    json_object *object = json_object_new_object();
 967    json_object_object_add(object, kKeyWidthPixel,  json_object_new_int(o_size.w));
 968    json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 969    json_object_object_add(object, kKeyWidthMm,     json_object_new_int(p_size.w));
 970    json_object_object_add(object, kKeyHeightMm,    json_object_new_int(p_size.h));
 971
 972    return Ok<json_object *>(object);
 973 }
 974
 975 result<json_object *> App::api_get_area_info(char const *drawing_name) {
 976    HMI_DEBUG("wm", "called");
 977
 978    // Check drawing name, surface/layer id
 979    auto const &surface_id = this->lookup_id(drawing_name);
 980    if (!surface_id) {
 981       return Err<json_object *>("Surface does not exist");
 982    }
 983
 984    if (!this->controller->surface_exists(*surface_id)) {
 985       return Err<json_object *>("Surface does not exist in controller!");
 986    }
 987
 988    auto layer_id = this->layers.get_layer_id(*surface_id);
 989    if (!layer_id) {
 990       return Err<json_object *>("Surface is not on any layer!");
 991    }
 992
 993    auto o_state = *this->layers.get_layout_state(*surface_id);
 994    if (o_state == nullptr) {
 995       return Err<json_object *>("Could not find layer for surface");
 996    }
 997
 998    struct LayoutState &state = *o_state;
 999    if ((state.main != *surface_id) && (state.sub != *surface_id)) {
1000       return Err<json_object *>("Surface is inactive");
1001    }
1002
1003    // Set area rectangle
1004    compositor::rect area_info = this->area_info[*surface_id];
1005    json_object *object = json_object_new_object();
1006    json_object_object_add(object, kKeyX,      json_object_new_int(area_info.x));
1007    json_object_object_add(object, kKeyY,      json_object_new_int(area_info.y));
1008    json_object_object_add(object, kKeyWidth,  json_object_new_int(area_info.w));
1009    json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
1010
1011    return Ok<json_object *>(object);
1012 }
1013
1014 void App::activate(int id) {
1015    auto ip = this->controller->sprops.find(id);
1016    if (ip != this->controller->sprops.end()) {
1017       this->controller->surfaces[id]->set_visibility(1);
1018       char const *label =
1019          this->lookup_name(id).value_or("unknown-name").c_str();
1020
1021       // FOR CES DEMO >>>
1022       if ((0 == strcmp(label, "Radio"))
1023           || (0 == strcmp(label, "MediaPlayer"))
1024           || (0 == strcmp(label, "Music"))
1025           || (0 == strcmp(label, "Navigation"))) {
1026         for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i) {
1027             if (id == *i) {
1028                // Remove id
1029                this->surface_bg.erase(i);
1030
1031                // Remove from BG layer (999)
1032                HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
1033                this->controller->layers[999]->remove_surface(id);
1034
1035                // Add to FG layer (1001)
1036                HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
1037                this->controller->layers[1001]->add_surface(id);
1038
1039                for (int j : this->surface_bg) {
1040                  HMI_DEBUG("wm", "Stored id:%d", j);
1041                }
1042                break;
1043             }
1044          }
1045       }
1046       // <<< FOR CES DEMO
1047       this->layout_commit();
1048
1049       this->emit_visible(label);
1050       this->emit_activated(label);
1051    }
1052 }
1053
1054 void App::deactivate(int id) {
1055    auto ip = this->controller->sprops.find(id);
1056    if (ip != this->controller->sprops.end()) {
1057       char const *label =
1058          this->lookup_name(id).value_or("unknown-name").c_str();
1059
1060       // FOR CES DEMO >>>
1061       if ((0 == strcmp(label, "Radio"))
1062           || (0 == strcmp(label, "MediaPlayer"))
1063           || (0 == strcmp(label, "Music"))
1064           || (0 == strcmp(label, "Navigation"))) {
1065
1066          // Store id
1067          this->surface_bg.push_back(id);
1068
1069          // Remove from FG layer (1001)
1070          HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
1071          this->controller->layers[1001]->remove_surface(id);
1072
1073          // Add to BG layer (999)
1074          HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
1075          this->controller->layers[999]->add_surface(id);
1076
1077          for (int j : surface_bg) {
1078             HMI_DEBUG("wm", "Stored id:%d", j);
1079          }
1080       }
1081       else {
1082          this->controller->surfaces[id]->set_visibility(0);
1083       }
1084       // <<< FOR CES DEMO
1085
1086       this->emit_deactivated(label);
1087       this->emit_invisible(label);
1088    }
1089 }
1090
1091 void App::deactivate_main_surface() {
1092    this->layers.main_surface = -1;
1093    std::string appid = "HomeScreen";
1094    this->api_deactivate_surface(appid.c_str(), this->layers.main_surface_name.c_str(), [](const char*){});
1095 }
1096
1097 bool App::can_split(struct LayoutState const &state, int new_id) {
1098    if (state.main != -1 && state.main != new_id) {
1099       auto new_id_layer = this->layers.get_layer_id(new_id).value();
1100       auto current_id_layer = this->layers.get_layer_id(state.main).value();
1101
1102       // surfaces are on separate layers, don't bother.
1103       if (new_id_layer != current_id_layer) {
1104          return false;
1105       }
1106
1107       std::string const &new_id_str = this->lookup_name(new_id).value();
1108       std::string const &cur_id_str = this->lookup_name(state.main).value();
1109
1110       auto const &layer = this->layers.get_layer(new_id_layer);
1111
1112       HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
1113
1114       if (layer->layouts.empty()) {
1115          return false;
1116       }
1117
1118       for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
1119          HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
1120          auto rem = std::regex(i->main_match);
1121          if (std::regex_match(cur_id_str, rem)) {
1122             // build the second one only if the first already matched
1123             HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
1124             auto res = std::regex(i->sub_match);
1125             if (std::regex_match(new_id_str, res)) {
1126                HMI_DEBUG("wm", "layout matched!");
1127                return true;
1128             }
1129          }
1130       }
1131    }
1132
1133    return false;
1134 }
1135
1136 void App::try_layout(struct LayoutState & /*state*/,
1137                      struct LayoutState const &new_layout,
1138                      std::function<void(LayoutState const &nl)> apply) {
1139    if (this->policy.layout_is_valid(new_layout)) {
1140       apply(new_layout);
1141    }
1142 }
1143
1144 /**
1145  * controller_hooks
1146  */
1147 void controller_hooks::surface_created(uint32_t surface_id) {
1148    this->app->surface_created(surface_id);
1149 }
1150
1151 void controller_hooks::surface_removed(uint32_t surface_id) {
1152    this->app->surface_removed(surface_id);
1153 }
1154
1155 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1156                                           uint32_t /*v*/) {}
1157
1158 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1159                                                      uint32_t /*x*/,
1160                                                      uint32_t /*y*/,
1161                                                      uint32_t /*w*/,
1162                                                      uint32_t /*h*/) {}
1163
1164 }  // namespace wm