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 #define TIME_OUT    1000000UL   /* 1s */
  42
  43 namespace wm {
  44
  45 /* DrawingArea name used by "{layout}.{area}" */
  46 const char kNameLayoutNormal[] = "normal";
  47 const char kNameLayoutSplit[]  = "split";
  48 const char kNameAreaFull[]     = "full";
  49 const char kNameAreaMain[]     = "main";
  50 const char kNameAreaSub[]      = "sub";
  51
  52 /* Key for json obejct */
  53 const char kKeyDrawingName[] = "drawing_name";
  54 const char kKeyDrawingArea[] = "drawing_area";
  55 const char kKeyDrawingRect[] = "drawing_rect";
  56 const char kKeyX[]           = "x";
  57 const char kKeyY[]           = "y";
  58 const char kKeyWidth[]       = "width";
  59 const char kKeyHeight[]      = "height";
  60 const char kKeyWidthPixel[]  = "width_pixel";
  61 const char kKeyHeightPixel[] = "height_pixel";
  62 const char kKeyWidthMm[]     = "width_mm";
  63 const char kKeyHeightMm[]    = "height_mm";
  64
  65 static const std::string task_allocate = "allocate"
  66 static const std::string task_release = "release"
  67
  68 static AllocateRequestList allocate_list;
  69
  70 namespace {
  71
  72 using nlohmann::json;
  73
  74 result<json> file_to_json(char const *filename) {
  75    json j;
  76    std::ifstream i(filename);
  77    if (i.fail()) {
  78       HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  79       j = default_layers_json;
  80    }
  81    else {
  82       i >> j;
  83    }
  84
  85    return Ok(j);
  86 }
  87
  88 struct result<layer_map> load_layer_map(char const *filename) {
  89    HMI_DEBUG("wm", "loading IDs from %s", filename);
  90
  91    auto j = file_to_json(filename);
  92    if (j.is_err()) {
  93       return Err<layer_map>(j.unwrap_err());
  94    }
  95    json jids = j.unwrap();
  96
  97    return to_layer_map(jids);
  98 }
  99
 100 }  // namespace
 101
 102 static int App::processTimerHandler(sd_event_source *s, uint64_t usec, void *userdata){
 103     HMI_NOTICE("Time out occurs because the client replys endDraw slow, so revert the request");
 104     reinterpret_cast<wm::App *>(userdata)->timerHandler();
 105 }
 106
 107 void App::timerHandler(){
 108     // TODO: write reset process
 109     unsigned seq = allocate_list.curerntSequenceNumber();
 110     allocate_list.resetRequest(seq);
 111 }
 112
 113 /**
 114  * App Impl
 115  */
 116 App::App(wl::display *d)
 117    : chooks{this},
 118      display{d},
 119      controller{},
 120      outputs(),
 121      config(),
 122      layers(),
 123      id_alloc{},
 124      pending_events(false),
 125      policy{} {
 126    try {
 127       {
 128          auto l = load_layer_map(
 129             this->config.get_string("layers.json").value().c_str());
 130          if (l.is_ok()) {
 131             this->layers = l.unwrap();
 132          } else {
 133             HMI_ERROR("wm", "%s", l.err().value());
 134          }
 135       }
 136    } catch (std::exception &e) {
 137       HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 138    }
 139 }
 140
 141 int App::init() {
 142    if (!this->display->ok()) {
 143       return -1;
 144    }
 145
 146    if (this->layers.mapping.empty()) {
 147       HMI_ERROR("wm", "No surface -> layer mapping loaded");
 148       return -1;
 149    }
 150
 151    // Make afb event
 152    for (int i=Event_Val_Min; i<=Event_Val_Max; i++) {
 153       map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 154    }
 155
 156    this->display->add_global_handler(
 157       "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 158          this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 159       });
 160
 161    this->display->add_global_handler(
 162       "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
 163          this->controller =
 164             std::make_unique<struct compositor::controller>(r, name, v);
 165
 166          // Init controller hooks
 167          this->controller->chooks = &this->chooks;
 168
 169          // This protocol needs the output, so lets just add our mapping here...
 170          this->controller->add_proxy_to_id_mapping(
 171             this->outputs.back()->proxy.get(),
 172             wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 173                this->outputs.back()->proxy.get())));
 174
 175          // Create screen
 176          this->controller->create_screen(this->outputs.back()->proxy.get());
 177
 178          // Set display to controller
 179          this->controller->display = this->display;
 180       });
 181
 182    // First level objects
 183    this->display->roundtrip();
 184    // Second level objects
 185    this->display->roundtrip();
 186    // Third level objects
 187    this->display->roundtrip();
 188
 189    return init_layers();
 190 }
 191
 192 int App::dispatch_pending_events() {
 193    if (this->pop_pending_events()) {
 194       this->display->dispatch_pending();
 195       return 0;
 196    }
 197    return -1;
 198 }
 199
 200 bool App::pop_pending_events() {
 201    bool x{true};
 202    return this->pending_events.compare_exchange_strong(
 203       x, false, std::memory_order_consume);
 204 }
 205
 206 void App::set_pending_events() {
 207    this->pending_events.store(true, std::memory_order_release);
 208 }
 209
 210 optional<int> App::lookup_id(char const *name) {
 211    return this->id_alloc.lookup(std::string(name));
 212 }
 213 optional<std::string> App::lookup_name(int id) {
 214    return this->id_alloc.lookup(id);
 215 }
 216
 217 /**
 218  * init_layers()
 219  */
 220 int App::init_layers() {
 221    if (!this->controller) {
 222       HMI_ERROR("wm", "ivi_controller global not available");
 223       return -1;
 224    }
 225
 226    if (this->outputs.empty()) {
 227       HMI_ERROR("wm", "no output was set up!");
 228       return -1;
 229    }
 230
 231    auto &c = this->controller;
 232
 233    auto &o = this->outputs.front();
 234    auto &s = c->screens.begin()->second;
 235    auto &layers = c->layers;
 236
 237    // Write output dimensions to ivi controller...
 238    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 239    c->physical_size = compositor::size{uint32_t(o->physical_width),
 240                                        uint32_t(o->physical_height)};
 241
 242    // Clear scene
 243    layers.clear();
 244
 245    // Clear screen
 246    s->clear();
 247
 248    // Quick and dirty setup of layers
 249    for (auto const &i : this->layers.mapping) {
 250       c->layer_create(i.second.layer_id, o->width, o->height);
 251       auto &l = layers[i.second.layer_id];
 252       l->set_destination_rectangle(0, 0, o->width, o->height);
 253       l->set_visibility(1);
 254       HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 255                i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 256    }
 257
 258    // Add layers to screen
 259    s->set_render_order(this->layers.layers);
 260
 261    this->layout_commit();
 262
 263    return 0;
 264 }
 265
 266 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id) {
 267    if (!this->controller->surface_exists(surface_id)) {
 268       HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 269       return;
 270    }
 271
 272    auto o_layer_id = this->layers.get_layer_id(surface_id);
 273
 274    if (!o_layer_id) {
 275       HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 276       return;
 277    }
 278
 279    uint32_t layer_id = *o_layer_id;
 280
 281    auto const &layer = this->layers.get_layer(layer_id);
 282    auto rect = layer.value().rect;
 283    auto &s = this->controller->surfaces[surface_id];
 284
 285    int x = rect.x;
 286    int y = rect.y;
 287    int w = rect.w;
 288    int h = rect.h;
 289
 290    // less-than-0 values refer to MAX + 1 - $VALUE
 291    // e.g. MAX is either screen width or height
 292    if (w < 0) {
 293       w = this->controller->output_size.w + 1 + w;
 294    }
 295    if (h < 0) {
 296       h = this->controller->output_size.h + 1 + h;
 297    }
 298
 299    if (sub_surface_id) {
 300       if (o_layer_id != this->layers.get_layer_id(*sub_surface_id)) {
 301          HMI_ERROR("wm",
 302             "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 303             surface_id, *sub_surface_id);
 304          return;
 305       }
 306
 307       int x_off = 0;
 308       int y_off = 0;
 309
 310       // split along major axis
 311       if (w > h) {
 312          w /= 2;
 313          x_off = w;
 314       } else {
 315          h /= 2;
 316          y_off = h;
 317       }
 318
 319       auto &ss = this->controller->surfaces[*sub_surface_id];
 320
 321       HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 322                *sub_surface_id, layer_id);
 323
 324       // set destination to the display rectangle
 325       ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 326
 327       this->area_info[*sub_surface_id].x = x;
 328       this->area_info[*sub_surface_id].y = y;
 329       this->area_info[*sub_surface_id].w = w;
 330       this->area_info[*sub_surface_id].h = h;
 331    }
 332
 333    HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 334             layer_id);
 335
 336    // set destination to the display rectangle
 337    s->set_destination_rectangle(x, y, w, h);
 338
 339    // update area information
 340    this->area_info[surface_id].x = x;
 341    this->area_info[surface_id].y = y;
 342    this->area_info[surface_id].w = w;
 343    this->area_info[surface_id].h = h;
 344
 345    HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 346             surface_id, layer_id, x, y, w, h);
 347 }
 348
 349 void App::layout_commit() {
 350    this->controller->commit_changes();
 351    this->display->flush();
 352 }
 353
 354 void App::do_allocate_window_resource(unsigned sequence_number){
 355     do {
 356         // TODO: Tasks will be changed according to policy manager result
 357         // do task(onTransition (activate))
 358     }while (!allocate_list.requestFinished())
 359
 360     // lm_.updateLayout(jobj);
 361    // TODO: emit syncDraw with application
 362    do{
 363         client->emit_syncdraw(role);
 364    }while (!allocate_list.requestFinished());
 365
 366    // is this needed?
 367    //allocate_list.setAllocated(sequence_number);
 368
 369    if(timer_ev_src != nullptr){
 370        // firsttime set into sd_event
 371        int ret = sd_event_add_time(afb_daemon_get_event_loop(), &timer_ev_src,
 372           CLOCK_BOOTTIME, time(NULL) + TIME_OUT, 0, processTimerHandler, this);
 373    }
 374    else{
 375        // update timer limitation after second time
 376        sd_event_source_set_time(timer_ev_src, time(NULL) + TIME_OUT);
 377        sd_event_source_set_enabled(timer_ev_src, SD_EVENT_ONESHOT);
 378    }
 379 }
 380
 381 void App::api_activate_surface(char const *appid, char const *drawing_name, char const *drawing_area, const reply_func &reply) {
 382    ST();
 383
 384    /*
 385    * Check Phase
 386    */
 387
 388    auto const &surface_id = this->lookup_id(drawing_name);
 389    std::string role = std::string(drawing_name);
 390    std::string area = std::string(drawing_area);
 391
 392    const WMClient* client = allocate_list.loopUpClient(appid);
 393    if(!client){
 394        reply("%d doesn't request 'requestSurface' yet", appid);
 395        return;
 396    }
 397
 398    // json_object* newState = checkPolicy(role);
 399    /* The following error check is not necessary because main.cpp will reject the message form not registered object
 400    if(client != nullptr){
 401        reply("client is not registered");
 402        return;
 403    } */
 404
 405    // get surfaceID from role
 406    /* auto const &surface_id_tmp = client->surfaceID(role);
 407    auto const &layer_id_tmp = client->layerID();
 408
 409    if(!surface_id_tmp && !layer_id_tmp){
 410        reply("invalid window manager client");
 411        HMI_DEBUG("appid:%s, requested_role:%s, surfaceID:%d in layer %d",
 412           appid, role, surface_id_tmp, layer_id_tmp);
 413    } */
 414
 415    /*
 416    * Queueing Phase
 417    */
 418    unsigned current = allocate_list.curerntSequenceNumber();
 419    unsigned requested_num = getSequenceNumber(appid, role, area);
 420    if(requested_num != 0){
 421        HMI_SEQ_INFO(requested_num, "%s %s %s request is already queued", appid, role, area);
 422        reply("already requested");
 423        return;
 424    }
 425
 426    static unsigned ++sequence_number;
 427    HMI_SEQ_DEBUG(sequence_number, "%s start sequence with %s, %s", appid, role, area);
 428
 429     if(sequence_number != current){
 430        // Add request, then invoked after the previous task is finished
 431        allocate_list.addAllocateRequest(client, sequence_number, task_allocate);
 432        HMI_SEQ_DEBUG(sequence_number, "request is accepted");
 433        reply(nullptr);
 434        return;
 435     }
 436
 437     /*
 438     * Do allocate tasks
 439     */
 440     this->do_allocate_window_resource(sequence_number);
 441
 442    if (!surface_id)
 443    {
 444        reply("Surface does not exist");
 445        return;
 446        }
 447
 448    if (!this->controller->surface_exists(*surface_id)) {
 449       reply("Surface does not exist in controller!");
 450       return;
 451    }
 452
 453    auto layer_id = this->layers.get_layer_id(*surface_id);
 454
 455    if (!layer_id) {
 456       reply("Surface is not on any layer!");
 457       return;
 458    }
 459
 460    auto o_state = *this->layers.get_layout_state(*surface_id);
 461
 462    if (o_state == nullptr) {
 463       reply("Could not find layer for surface");
 464       return;
 465    }
 466
 467    HMI_DEBUG("wm", "surface %d is detected", *surface_id);
 468    reply(nullptr);
 469
 470    struct LayoutState &state = *o_state;
 471
 472    // disable layers that are above our current layer
 473    for (auto const &l : this->layers.mapping) {
 474       if (l.second.layer_id <= *layer_id) {
 475          continue;
 476       }
 477
 478       bool flush = false;
 479       if (l.second.state.main != -1) {
 480          this->deactivate(l.second.state.main);
 481          l.second.state.main = -1;
 482          flush = true;
 483       }
 484
 485       if (l.second.state.sub != -1) {
 486          this->deactivate(l.second.state.sub);
 487          l.second.state.sub = -1;
 488          flush = true;
 489       }
 490
 491       if (flush) {
 492          this->layout_commit();
 493       }
 494    }
 495
 496    auto layer = this->layers.get_layer(*layer_id);
 497
 498    if (state.main == -1) {
 499       this->try_layout(
 500          state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 501             HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 502             this->surface_set_layout(*surface_id);
 503             state = nl;
 504
 505             // Commit for configuraton
 506             this->layout_commit();
 507
 508             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 509             compositor::rect area_rect = this->area_info[*surface_id];
 510             this->emit_syncdraw(drawing_name, str_area.c_str(),
 511                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 512             this->enqueue_flushdraw(state.main);
 513          });
 514    } else {
 515       if (0 == strcmp(drawing_name, "HomeScreen")) {
 516          this->try_layout(
 517             state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 518                HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 519                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 520                compositor::rect area_rect = this->area_info[*surface_id];
 521                this->emit_syncdraw(drawing_name, str_area.c_str(),
 522                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 523                this->enqueue_flushdraw(state.main);
 524             });
 525       } else {
 526          bool can_split = this->can_split(state, *surface_id);
 527
 528          if (can_split) {
 529             this->try_layout(
 530                state,
 531                LayoutState{state.main, *surface_id},
 532                [&] (LayoutState const &nl) {
 533                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 534                   std::string main =
 535                      std::move(*this->lookup_name(state.main));
 536
 537                   this->surface_set_layout(state.main, surface_id);
 538                   if (state.sub != *surface_id) {
 539                       if (state.sub != -1) {
 540                          this->deactivate(state.sub);
 541                       }
 542                   }
 543                   state = nl;
 544
 545                   // Commit for configuration and visibility(0)
 546                   this->layout_commit();
 547
 548                   std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 549                   std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 550                   compositor::rect area_rect_main = this->area_info[state.main];
 551                   compositor::rect area_rect_sub = this->area_info[*surface_id];
 552                   this->emit_syncdraw(main.c_str(), str_area_main.c_str(),
 553                                       area_rect_main.x, area_rect_main.y,
 554                                       area_rect_main.w, area_rect_main.h);
 555                   this->emit_syncdraw(drawing_name, str_area_sub.c_str(),
 556                                       area_rect_sub.x, area_rect_sub.y,
 557                                       area_rect_sub.w, area_rect_sub.h);
 558                   this->enqueue_flushdraw(state.main);
 559                   this->enqueue_flushdraw(state.sub);
 560                });
 561          } else {
 562             this->try_layout(
 563                state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 564                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 565
 566                   this->surface_set_layout(*surface_id);
 567                   if (state.main != *surface_id) {
 568                       this->deactivate(state.main);
 569                   }
 570                   if (state.sub != -1) {
 571                       if (state.sub != *surface_id) {
 572                          this->deactivate(state.sub);
 573                       }
 574                   }
 575                   state = nl;
 576
 577                   // Commit for configuraton and visibility(0)
 578                   this->layout_commit();
 579
 580                   std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 581                   compositor::rect area_rect = this->area_info[*surface_id];
 582                   this->emit_syncdraw(drawing_name, str_area.c_str(),
 583                                       area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 584                   this->enqueue_flushdraw(state.main);
 585                });
 586          }
 587       }
 588    }
 589 }
 590
 591 void App::api_deactivate_surface(char const *appid, char const *drawing_name, const reply_func &reply) {
 592    ST();
 593    auto const &surface_id = this->lookup_id(drawing_name);
 594    WMClient* client = allocate_list.lookupClient(appid);
 595
 596    if (!surface_id) {
 597       reply ("Surface does not exist");
 598       return;
 599    }
 600
 601    if (*surface_id == this->layers.main_surface) {
 602       reply("Cannot deactivate main_surface");
 603       return;
 604    }
 605
 606    auto o_state = *this->layers.get_layout_state(*surface_id);
 607
 608    if (o_state == nullptr) {
 609       reply("Could not find layer for surface");
 610       return;
 611    }
 612
 613    struct LayoutState &state = *o_state;
 614
 615    if (state.main == -1) {
 616       reply("No surface active");
 617       return;
 618    }
 619
 620    // Check against main_surface, main_surface_name is the configuration item.
 621    if (*surface_id == this->layers.main_surface) {
 622       HMI_DEBUG("wm", "Refusing to deactivate main_surface %d", *surface_id);
 623       reply(nullptr);
 624       return;
 625    }
 626    if((state.main == *surface_id) && (state.sub == *surface_id)){
 627        reply("Surface is not active");
 628        return;
 629    }
 630    reply(nullptr);
 631
 632    if (state.main == *surface_id) {
 633       if (state.sub != -1) {
 634          this->try_layout(
 635             state, LayoutState{state.sub, -1}, [&] (LayoutState const &nl) {
 636                std::string sub = std::move(*this->lookup_name(state.sub));
 637
 638                this->deactivate(*surface_id);
 639                this->surface_set_layout(state.sub);
 640                state = nl;
 641
 642                this->layout_commit();
 643                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 644                compositor::rect area_rect = this->area_info[state.sub];
 645                this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 646                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 647                this->enqueue_flushdraw(state.sub);
 648             });
 649       } else {
 650          this->try_layout(state, LayoutState{-1, -1}, [&] (LayoutState const &nl) {
 651             this->deactivate(*surface_id);
 652             state = nl;
 653             this->layout_commit();
 654          });
 655       }
 656    } else if (state.sub == *surface_id) {
 657       this->try_layout(
 658          state, LayoutState{state.main, -1}, [&] (LayoutState const &nl) {
 659             std::string main = std::move(*this->lookup_name(state.main));
 660
 661             this->deactivate(*surface_id);
 662             this->surface_set_layout(state.main);
 663             state = nl;
 664
 665             this->layout_commit();
 666             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 667             compositor::rect area_rect = this->area_info[state.main];
 668             this->emit_syncdraw(main.c_str(), str_area.c_str(),
 669                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 670             this->enqueue_flushdraw(state.main);
 671          });
 672    }
 673 }
 674
 675 void App::enqueue_flushdraw(int surface_id) {
 676    this->check_flushdraw(surface_id);
 677    HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 678    this->pending_end_draw.push_back(surface_id);
 679 }
 680
 681 void App::check_flushdraw(int surface_id) {
 682    auto i = std::find(std::begin(this->pending_end_draw),
 683                       std::end(this->pending_end_draw), surface_id);
 684    if (i != std::end(this->pending_end_draw)) {
 685       auto n = this->lookup_name(surface_id);
 686       HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 687                n ? n->c_str() : "unknown-name", surface_id);
 688       std::swap(this->pending_end_draw[std::distance(
 689                    std::begin(this->pending_end_draw), i)],
 690                 this->pending_end_draw.back());
 691       this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 692    }
 693 }
 694
 695 void App::do_enddraw(unsigned sequence_number){
 696     HMI_SEQ_INFO(sequence_number, "do endDraw");
 697     do{
 698         // make visible application
 699     }while(!allocate_list.requestFinished());
 700
 701     HMI_SEQ_INFO(sequence_number, "emit flushDraw");
 702     do{
 703         // emit flush Draw
 704         //emitFlushDrawToAll(&allocate_list, request_seq);
 705         // emit status change event
 706     }while(!allocate_list.requestFinished());
 707 }
 708
 709 void App::api_enddraw(char const *appid, char const *drawing_name) {
 710     unsigned request_seq = allocate_list.lookUpAllocatingApp(appid);
 711     unsigned current_seq = allocate_list.currentSequence();
 712     if(current_seq != request_seq){
 713         if(request_seq == 0){
 714             HMI_ERROR("You don't have Window Resource");
 715         }
 716         else{
 717             HMI_ERROR("wm", "unknown error. Application may not obey the sequence manner. please call endDraw after syncDraw");
 718         }
 719         return;
 720     }
 721
 722     std::string role = drawing_name;
 723     std::string area = drawing_area;
 724     allocate_list.setEndDrawFinished(request_seq, role);
 725
 726     if(allocate_list.endDrawFullfilled(request_seq)){
 727         // do task for endDraw
 728         this->do_enddraw(request_seq);
 729         allocate_list.removeRequest(request_seq);
 730         HMI_SEQ_INFO(request_seq, "Finish sequence");
 731         allocate_list.setCurrentSequence(request_seq + 1);
 732         if(allocate_list.haveRequest()){
 733             this->process_request();
 734         }
 735     }
 736     else{
 737         HMI_SEQ_INFO(request_seq, "Wait other App call endDraw");
 738         return;
 739     }
 740    for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
 741       auto n = this->lookup_name(this->pending_end_draw[i]);
 742       if (n && *n == drawing_name) {
 743          std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 744          this->pending_end_draw.resize(iend - 1);
 745          this->activate(this->pending_end_draw[i]);
 746          this->emit_flushdraw(drawing_name);
 747       }
 748    }
 749 }
 750
 751 void App::api_ping() { this->dispatch_pending_events(); }
 752
 753 void App::send_event(char const *evname, char const *label){
 754    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 755
 756    json_object *j = json_object_new_object();
 757    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 758
 759    int ret = afb_event_push(this->map_afb_event[evname], j);
 760    if (ret != 0) {
 761       HMI_DEBUG("wm", "afb_event_push failed: %m");
 762    }
 763 }
 764
 765 void App::send_event(char const *evname, char const *label, char const *area,
 766                              int x, int y, int w, int h) {
 767    HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 768              __func__, evname, label, area, x, y, w, h);
 769
 770    json_object *j_rect = json_object_new_object();
 771    json_object_object_add(j_rect, kKeyX,      json_object_new_int(x));
 772    json_object_object_add(j_rect, kKeyY,      json_object_new_int(y));
 773    json_object_object_add(j_rect, kKeyWidth,  json_object_new_int(w));
 774    json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 775
 776    json_object *j = json_object_new_object();
 777    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 778    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 779    json_object_object_add(j, kKeyDrawingRect, j_rect);
 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 /**
 788  * proxied events
 789  */
 790 void App::surface_created(uint32_t surface_id) {
 791    auto layer_id = this->layers.get_layer_id(surface_id);
 792    if (!layer_id) {
 793       HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 794                surface_id);
 795       return;
 796    }
 797
 798    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 799
 800    this->controller->layers[*layer_id]->add_surface(surface_id);
 801    this->layout_commit();
 802    // activate the main_surface right away
 803    /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 804       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 805
 806       this->api_activate_surface(
 807          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 808    }*/
 809 }
 810
 811 void App::surface_removed(uint32_t surface_id) {
 812    HMI_DEBUG("wm", "surface_id is %u", surface_id);
 813
 814    // We cannot normally deactivate the main_surface, so be explicit
 815    // about it:
 816    if (int(surface_id) == this->layers.main_surface) {
 817       this->deactivate_main_surface();
 818    } else {
 819       auto drawing_name = this->lookup_name(surface_id);
 820       if (drawing_name) {
 821          this->api_deactivate_surface(drawing_name->c_str(), [](const char*){});
 822       }
 823    }
 824
 825    this->id_alloc.remove_id(surface_id);
 826    this->layers.remove_surface(surface_id);
 827 }
 828
 829 void App::emit_activated(char const *label) {
 830    this->send_event(kListEventName[Event_Active], label);
 831 }
 832
 833 void App::emit_deactivated(char const *label) {
 834    this->send_event(kListEventName[Event_Inactive], label);
 835 }
 836
 837 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h) {
 838    this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 839 }
 840
 841 void App::emit_flushdraw(char const *label) {
 842    this->send_event(kListEventName[Event_FlushDraw], label);
 843 }
 844
 845 void App::emit_visible(char const *label, bool is_visible) {
 846    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 847 }
 848
 849 void App::emit_invisible(char const *label) {
 850    return emit_visible(label, false);
 851 }
 852
 853 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 854
 855 result<int> App::api_request_surface(char const *drawing_name, char const * appid, int flag) {
 856    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 857    if (!lid) {
 858       /**
 859        * register drawing_name as fallback and make it displayed.
 860        */
 861       lid = this->layers.get_layer_id(std::string("Fallback"));
 862       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 863       if(!lid){
 864           return Err<int>("Drawing name does not match any role, Fallback is disabled");
 865       }
 866    }
 867
 868    auto rname = this->lookup_id(drawing_name);
 869    if (!rname) {
 870       // name does not exist yet, allocate surface id...
 871       auto id = int(this->id_alloc.generate_id(drawing_name));
 872       this->layers.add_surface(id, *lid);
 873
 874       // set the main_surface[_name] here and now
 875       if (!this->layers.main_surface_name.empty() &&
 876           this->layers.main_surface_name == drawing_name) {
 877          this->layers.main_surface = id;
 878          HMI_DEBUG("wm", "Set main_surface id to %u", id);
 879       }
 880
 881       // add client into the db
 882       WMClient* client = new WMClient(appid, *lid, id, drawing_name); // role is drawing_name for now
 883       allocate_list.addClient(client);
 884
 885       return Ok<int>(id);
 886    }
 887
 888    // Check currently registered drawing names if it is already there.
 889    return Err<int>("Surface already present");
 890 }
 891
 892 char const *App::api_request_surface(char const *drawing_name,
 893                                      char const *ivi_id) {
 894    ST();
 895
 896    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 897    unsigned sid = std::stol(ivi_id);
 898
 899    if (!lid) {
 900       /**
 901        * register drawing_name as fallback and make it displayed.
 902        */
 903       lid = this->layers.get_layer_id(std::string("Fallback"));
 904       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 905       if(!lid){
 906           return "Drawing name does not match any role, Fallback is disabled";
 907       }
 908    }
 909
 910    auto rname = this->lookup_id(drawing_name);
 911
 912    if (rname) {
 913        return "Surface already present";
 914    }
 915
 916    // register pair drawing_name and ivi_id
 917    this->id_alloc.register_name_id(drawing_name, sid);
 918    this->layers.add_surface(sid, *lid);
 919
 920    // this surface is already created
 921    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 922
 923    this->controller->layers[*lid]->add_surface(sid);
 924    this->layout_commit();
 925
 926    return nullptr;
 927 }
 928
 929 result<json_object *> App::api_get_display_info() {
 930    // Check controller
 931    if (!this->controller) {
 932       return Err<json_object *>("ivi_controller global not available");
 933    }
 934
 935    // Set display info
 936    compositor::size o_size = this->controller->output_size;
 937    compositor::size p_size = this->controller->physical_size;
 938
 939    json_object *object = json_object_new_object();
 940    json_object_object_add(object, kKeyWidthPixel,  json_object_new_int(o_size.w));
 941    json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 942    json_object_object_add(object, kKeyWidthMm,     json_object_new_int(p_size.w));
 943    json_object_object_add(object, kKeyHeightMm,    json_object_new_int(p_size.h));
 944
 945    return Ok<json_object *>(object);
 946 }
 947
 948 result<json_object *> App::api_get_area_info(char const *drawing_name) {
 949    HMI_DEBUG("wm", "called");
 950
 951    // Check drawing name, surface/layer id
 952    auto const &surface_id = this->lookup_id(drawing_name);
 953    if (!surface_id) {
 954       return Err<json_object *>("Surface does not exist");
 955    }
 956
 957    if (!this->controller->surface_exists(*surface_id)) {
 958       return Err<json_object *>("Surface does not exist in controller!");
 959    }
 960
 961    auto layer_id = this->layers.get_layer_id(*surface_id);
 962    if (!layer_id) {
 963       return Err<json_object *>("Surface is not on any layer!");
 964    }
 965
 966    auto o_state = *this->layers.get_layout_state(*surface_id);
 967    if (o_state == nullptr) {
 968       return Err<json_object *>("Could not find layer for surface");
 969    }
 970
 971    struct LayoutState &state = *o_state;
 972    if ((state.main != *surface_id) && (state.sub != *surface_id)) {
 973       return Err<json_object *>("Surface is inactive");
 974    }
 975
 976    // Set area rectangle
 977    compositor::rect area_info = this->area_info[*surface_id];
 978    json_object *object = json_object_new_object();
 979    json_object_object_add(object, kKeyX,      json_object_new_int(area_info.x));
 980    json_object_object_add(object, kKeyY,      json_object_new_int(area_info.y));
 981    json_object_object_add(object, kKeyWidth,  json_object_new_int(area_info.w));
 982    json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
 983
 984    return Ok<json_object *>(object);
 985 }
 986
 987 void App::activate(int id) {
 988    auto ip = this->controller->sprops.find(id);
 989    if (ip != this->controller->sprops.end()) {
 990       this->controller->surfaces[id]->set_visibility(1);
 991       char const *label =
 992          this->lookup_name(id).value_or("unknown-name").c_str();
 993
 994       // FOR CES DEMO >>>
 995       if ((0 == strcmp(label, "Radio"))
 996           || (0 == strcmp(label, "MediaPlayer"))
 997           || (0 == strcmp(label, "Music"))
 998           || (0 == strcmp(label, "Navigation"))) {
 999         for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i) {
1000             if (id == *i) {
1001                // Remove id
1002                this->surface_bg.erase(i);
1003
1004                // Remove from BG layer (999)
1005                HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
1006                this->controller->layers[999]->remove_surface(id);
1007
1008                // Add to FG layer (1001)
1009                HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
1010                this->controller->layers[1001]->add_surface(id);
1011
1012                for (int j : this->surface_bg) {
1013                  HMI_DEBUG("wm", "Stored id:%d", j);
1014                }
1015                break;
1016             }
1017          }
1018       }
1019       // <<< FOR CES DEMO
1020       this->layout_commit();
1021
1022       this->emit_visible(label);
1023       this->emit_activated(label);
1024    }
1025 }
1026
1027 void App::deactivate(int id) {
1028    auto ip = this->controller->sprops.find(id);
1029    if (ip != this->controller->sprops.end()) {
1030       char const *label =
1031          this->lookup_name(id).value_or("unknown-name").c_str();
1032
1033       // FOR CES DEMO >>>
1034       if ((0 == strcmp(label, "Radio"))
1035           || (0 == strcmp(label, "MediaPlayer"))
1036           || (0 == strcmp(label, "Music"))
1037           || (0 == strcmp(label, "Navigation"))) {
1038
1039          // Store id
1040          this->surface_bg.push_back(id);
1041
1042          // Remove from FG layer (1001)
1043          HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
1044          this->controller->layers[1001]->remove_surface(id);
1045
1046          // Add to BG layer (999)
1047          HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
1048          this->controller->layers[999]->add_surface(id);
1049
1050          for (int j : surface_bg) {
1051             HMI_DEBUG("wm", "Stored id:%d", j);
1052          }
1053       }
1054       else {
1055          this->controller->surfaces[id]->set_visibility(0);
1056       }
1057       // <<< FOR CES DEMO
1058
1059       this->emit_deactivated(label);
1060       this->emit_invisible(label);
1061    }
1062 }
1063
1064 void App::deactivate_main_surface() {
1065    this->layers.main_surface = -1;
1066    this->api_deactivate_surface(this->layers.main_surface_name.c_str(), [](const char*){});
1067 }
1068
1069 bool App::can_split(struct LayoutState const &state, int new_id) {
1070    if (state.main != -1 && state.main != new_id) {
1071       auto new_id_layer = this->layers.get_layer_id(new_id).value();
1072       auto current_id_layer = this->layers.get_layer_id(state.main).value();
1073
1074       // surfaces are on separate layers, don't bother.
1075       if (new_id_layer != current_id_layer) {
1076          return false;
1077       }
1078
1079       std::string const &new_id_str = this->lookup_name(new_id).value();
1080       std::string const &cur_id_str = this->lookup_name(state.main).value();
1081
1082       auto const &layer = this->layers.get_layer(new_id_layer);
1083
1084       HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
1085
1086       if (layer->layouts.empty()) {
1087          return false;
1088       }
1089
1090       for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
1091          HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
1092          auto rem = std::regex(i->main_match);
1093          if (std::regex_match(cur_id_str, rem)) {
1094             // build the second one only if the first already matched
1095             HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
1096             auto res = std::regex(i->sub_match);
1097             if (std::regex_match(new_id_str, res)) {
1098                HMI_DEBUG("wm", "layout matched!");
1099                return true;
1100             }
1101          }
1102       }
1103    }
1104
1105    return false;
1106 }
1107
1108 void App::try_layout(struct LayoutState & /*state*/,
1109                      struct LayoutState const &new_layout,
1110                      std::function<void(LayoutState const &nl)> apply) {
1111    if (this->policy.layout_is_valid(new_layout)) {
1112       apply(new_layout);
1113    }
1114 }
1115
1116 /**
1117  * controller_hooks
1118  */
1119 void controller_hooks::surface_created(uint32_t surface_id) {
1120    this->app->surface_created(surface_id);
1121 }
1122
1123 void controller_hooks::surface_removed(uint32_t surface_id) {
1124    this->app->surface_removed(surface_id);
1125 }
1126
1127 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1128                                           uint32_t /*v*/) {}
1129
1130 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1131                                                      uint32_t /*x*/,
1132                                                      uint32_t /*y*/,
1133                                                      uint32_t /*w*/,
1134                                                      uint32_t /*h*/) {}
1135
1136 }  // namespace wm