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 AllocateRequestList allocate_list;
  66
  67 namespace {
  68
  69 using nlohmann::json;
  70
  71 result<json> file_to_json(char const *filename) {
  72    json j;
  73    std::ifstream i(filename);
  74    if (i.fail()) {
  75       HMI_DEBUG("wm", "Could not open config file, so use default layer information");
  76       j = default_layers_json;
  77    }
  78    else {
  79       i >> j;
  80    }
  81
  82    return Ok(j);
  83 }
  84
  85 struct result<layer_map> load_layer_map(char const *filename) {
  86    HMI_DEBUG("wm", "loading IDs from %s", filename);
  87
  88    auto j = file_to_json(filename);
  89    if (j.is_err()) {
  90       return Err<layer_map>(j.unwrap_err());
  91    }
  92    json jids = j.unwrap();
  93
  94    return to_layer_map(jids);
  95 }
  96
  97 }  // namespace
  98
  99 static int App::processTimerHandler(sd_event_source *s, uint64_t usec, void *userdata){
 100     HMI_NOTICE("Time out occurs because the client replys endDraw slow, so revert the request");
 101     reinterpret_cast<wm::App *>(userdata)->timerHandler();
 102 }
 103
 104 void App::timerHandler(){
 105     // TODO: write reset process
 106     unsigned seq = allocate_list.curerntSequenceNumber();
 107     allocate_list.resetRequest(seq);
 108 }
 109
 110 /**
 111  * App Impl
 112  */
 113 App::App(wl::display *d)
 114    : chooks{this},
 115      display{d},
 116      controller{},
 117      outputs(),
 118      config(),
 119      layers(),
 120      id_alloc{},
 121      pending_events(false),
 122      policy{} {
 123    try {
 124       {
 125          auto l = load_layer_map(
 126             this->config.get_string("layers.json").value().c_str());
 127          if (l.is_ok()) {
 128             this->layers = l.unwrap();
 129          } else {
 130             HMI_ERROR("wm", "%s", l.err().value());
 131          }
 132       }
 133    } catch (std::exception &e) {
 134       HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
 135    }
 136 }
 137
 138 int App::init() {
 139    if (!this->display->ok()) {
 140       return -1;
 141    }
 142
 143    if (this->layers.mapping.empty()) {
 144       HMI_ERROR("wm", "No surface -> layer mapping loaded");
 145       return -1;
 146    }
 147
 148    // Make afb event
 149    for (int i=Event_Val_Min; i<=Event_Val_Max; i++) {
 150       map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
 151    }
 152
 153    this->display->add_global_handler(
 154       "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
 155          this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
 156       });
 157
 158    this->display->add_global_handler(
 159       "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
 160          this->controller =
 161             std::make_unique<struct compositor::controller>(r, name, v);
 162
 163          // Init controller hooks
 164          this->controller->chooks = &this->chooks;
 165
 166          // This protocol needs the output, so lets just add our mapping here...
 167          this->controller->add_proxy_to_id_mapping(
 168             this->outputs.back()->proxy.get(),
 169             wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
 170                this->outputs.back()->proxy.get())));
 171
 172          // Create screen
 173          this->controller->create_screen(this->outputs.back()->proxy.get());
 174
 175          // Set display to controller
 176          this->controller->display = this->display;
 177       });
 178
 179    // First level objects
 180    this->display->roundtrip();
 181    // Second level objects
 182    this->display->roundtrip();
 183    // Third level objects
 184    this->display->roundtrip();
 185
 186    return init_layers();
 187 }
 188
 189 int App::dispatch_pending_events() {
 190    if (this->pop_pending_events()) {
 191       this->display->dispatch_pending();
 192       return 0;
 193    }
 194    return -1;
 195 }
 196
 197 bool App::pop_pending_events() {
 198    bool x{true};
 199    return this->pending_events.compare_exchange_strong(
 200       x, false, std::memory_order_consume);
 201 }
 202
 203 void App::set_pending_events() {
 204    this->pending_events.store(true, std::memory_order_release);
 205 }
 206
 207 optional<int> App::lookup_id(char const *name) {
 208    return this->id_alloc.lookup(std::string(name));
 209 }
 210 optional<std::string> App::lookup_name(int id) {
 211    return this->id_alloc.lookup(id);
 212 }
 213
 214 /**
 215  * init_layers()
 216  */
 217 int App::init_layers() {
 218    if (!this->controller) {
 219       HMI_ERROR("wm", "ivi_controller global not available");
 220       return -1;
 221    }
 222
 223    if (this->outputs.empty()) {
 224       HMI_ERROR("wm", "no output was set up!");
 225       return -1;
 226    }
 227
 228    auto &c = this->controller;
 229
 230    auto &o = this->outputs.front();
 231    auto &s = c->screens.begin()->second;
 232    auto &layers = c->layers;
 233
 234    // Write output dimensions to ivi controller...
 235    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
 236    c->physical_size = compositor::size{uint32_t(o->physical_width),
 237                                        uint32_t(o->physical_height)};
 238
 239    // Clear scene
 240    layers.clear();
 241
 242    // Clear screen
 243    s->clear();
 244
 245    // Quick and dirty setup of layers
 246    for (auto const &i : this->layers.mapping) {
 247       c->layer_create(i.second.layer_id, o->width, o->height);
 248       auto &l = layers[i.second.layer_id];
 249       l->set_destination_rectangle(0, 0, o->width, o->height);
 250       l->set_visibility(1);
 251       HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
 252                i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
 253    }
 254
 255    // Add layers to screen
 256    s->set_render_order(this->layers.layers);
 257
 258    this->layout_commit();
 259
 260    return 0;
 261 }
 262
 263 void App::surface_set_layout(int surface_id, optional<int> sub_surface_id) {
 264    if (!this->controller->surface_exists(surface_id)) {
 265       HMI_ERROR("wm", "Surface %d does not exist", surface_id);
 266       return;
 267    }
 268
 269    auto o_layer_id = this->layers.get_layer_id(surface_id);
 270
 271    if (!o_layer_id) {
 272       HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
 273       return;
 274    }
 275
 276    uint32_t layer_id = *o_layer_id;
 277
 278    auto const &layer = this->layers.get_layer(layer_id);
 279    auto rect = layer.value().rect;
 280    auto &s = this->controller->surfaces[surface_id];
 281
 282    int x = rect.x;
 283    int y = rect.y;
 284    int w = rect.w;
 285    int h = rect.h;
 286
 287    // less-than-0 values refer to MAX + 1 - $VALUE
 288    // e.g. MAX is either screen width or height
 289    if (w < 0) {
 290       w = this->controller->output_size.w + 1 + w;
 291    }
 292    if (h < 0) {
 293       h = this->controller->output_size.h + 1 + h;
 294    }
 295
 296    if (sub_surface_id) {
 297       if (o_layer_id != this->layers.get_layer_id(*sub_surface_id)) {
 298          HMI_ERROR("wm",
 299             "surface_set_layout: layers of surfaces (%d and %d) don't match!",
 300             surface_id, *sub_surface_id);
 301          return;
 302       }
 303
 304       int x_off = 0;
 305       int y_off = 0;
 306
 307       // split along major axis
 308       if (w > h) {
 309          w /= 2;
 310          x_off = w;
 311       } else {
 312          h /= 2;
 313          y_off = h;
 314       }
 315
 316       auto &ss = this->controller->surfaces[*sub_surface_id];
 317
 318       HMI_DEBUG("wm", "surface_set_layout for sub surface %u on layer %u",
 319                *sub_surface_id, layer_id);
 320
 321       // set destination to the display rectangle
 322       ss->set_destination_rectangle(x + x_off, y + y_off, w, h);
 323
 324       this->area_info[*sub_surface_id].x = x;
 325       this->area_info[*sub_surface_id].y = y;
 326       this->area_info[*sub_surface_id].w = w;
 327       this->area_info[*sub_surface_id].h = h;
 328    }
 329
 330    HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
 331             layer_id);
 332
 333    // set destination to the display rectangle
 334    s->set_destination_rectangle(x, y, w, h);
 335
 336    // update area information
 337    this->area_info[surface_id].x = x;
 338    this->area_info[surface_id].y = y;
 339    this->area_info[surface_id].w = w;
 340    this->area_info[surface_id].h = h;
 341
 342    HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
 343             surface_id, layer_id, x, y, w, h);
 344 }
 345
 346 void App::layout_commit() {
 347    this->controller->commit_changes();
 348    this->display->flush();
 349 }
 350
 351 void App::api_activate_surface(char const *appid, char const *drawing_name, char const *drawing_area, const reply_func &reply) {
 352    ST();
 353
 354    /*
 355    * Check Phase
 356    */
 357
 358    auto const &surface_id = this->lookup_id(drawing_name);
 359    std::string role = std::string(drawing_name);
 360    // newState = checkPolicy(role);
 361    const WMClient* client = allocate_list.loopUpClient(appid);
 362    if(client != nullptr){
 363        reply("client is not registered");
 364        return;
 365    }
 366    auto const &surface_id_tmp = client->surfaceID(role);
 367    auto const &layer_id_tmp = client->layerID();
 368
 369    if(!surface_id_tmp && !layer_id_tmp){
 370        reply("invalid window manager client");
 371        HMI_DEBUG("appid:%s, requested_role:%s, surfaceID:%d in layer %d",
 372           appid, role, surface_id_tmp, layer_id_tmp);
 373    }
 374
 375    /*
 376    * Queueing Phase
 377    */
 378    static unsigned ++sequence_number;
 379    unsigned current = allocate_list.curerntSequenceNumber();
 380
 381     if(sequence_number != current){
 382        // Add request, then invoked after the previous task is finished
 383        allocate_list.addAllocateRequest(client, sequence_number, tasks);
 384        reply(nullptr);
 385        return;
 386     }
 387
 388     /*
 389     * Do allocate tasks
 390     */
 391     do {
 392         // TODO: Tasks will be changed according to policy manager result
 393         // do task(onTransition (activate))
 394     }while (!allocate_list.requestFinished())
 395
 396     // lm_.updateLayout(jobj);
 397    // TODO: emit syncDraw with application
 398    do{
 399         client->emit_syncdraw(role);
 400    }while (!allocate_list.requestFinished());
 401
 402    if(timer_ev_src != nullptr){
 403        // firsttime set into sd_event
 404        int ret = sd_event_add_time(afb_daemon_get_event_loop(), &timer_ev_src,
 405           CLOCK_BOOTTIME, time(NULL) + TIME_OUT, 0, processTimerHandler, this);
 406    }
 407    else{
 408        // update timer limitation after second time
 409        sd_event_source_set_time(timer_ev_src, time(NULL) + TIME_OUT);
 410        sd_event_source_set_enabled(timer_ev_src, SD_EVENT_ONESHOT);
 411    }
 412
 413    if (!surface_id)
 414    {
 415        reply("Surface does not exist");
 416        return;
 417        }
 418
 419    if (!this->controller->surface_exists(*surface_id)) {
 420       reply("Surface does not exist in controller!");
 421       return;
 422    }
 423
 424    auto layer_id = this->layers.get_layer_id(*surface_id);
 425
 426    if (!layer_id) {
 427       reply("Surface is not on any layer!");
 428       return;
 429    }
 430
 431    auto o_state = *this->layers.get_layout_state(*surface_id);
 432
 433    if (o_state == nullptr) {
 434       reply("Could not find layer for surface");
 435       return;
 436    }
 437
 438    HMI_DEBUG("wm", "surface %d is detected", *surface_id);
 439    reply(nullptr);
 440
 441    struct LayoutState &state = *o_state;
 442
 443    // disable layers that are above our current layer
 444    for (auto const &l : this->layers.mapping) {
 445       if (l.second.layer_id <= *layer_id) {
 446          continue;
 447       }
 448
 449       bool flush = false;
 450       if (l.second.state.main != -1) {
 451          this->deactivate(l.second.state.main);
 452          l.second.state.main = -1;
 453          flush = true;
 454       }
 455
 456       if (l.second.state.sub != -1) {
 457          this->deactivate(l.second.state.sub);
 458          l.second.state.sub = -1;
 459          flush = true;
 460       }
 461
 462       if (flush) {
 463          this->layout_commit();
 464       }
 465    }
 466
 467    auto layer = this->layers.get_layer(*layer_id);
 468
 469    if (state.main == -1) {
 470       this->try_layout(
 471          state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 472             HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 473             this->surface_set_layout(*surface_id);
 474             state = nl;
 475
 476             // Commit for configuraton
 477             this->layout_commit();
 478
 479             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 480             compositor::rect area_rect = this->area_info[*surface_id];
 481             this->emit_syncdraw(drawing_name, str_area.c_str(),
 482                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 483             this->enqueue_flushdraw(state.main);
 484          });
 485    } else {
 486       if (0 == strcmp(drawing_name, "HomeScreen")) {
 487          this->try_layout(
 488             state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 489                HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 490                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 491                compositor::rect area_rect = this->area_info[*surface_id];
 492                this->emit_syncdraw(drawing_name, str_area.c_str(),
 493                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 494                this->enqueue_flushdraw(state.main);
 495             });
 496       } else {
 497          bool can_split = this->can_split(state, *surface_id);
 498
 499          if (can_split) {
 500             this->try_layout(
 501                state,
 502                LayoutState{state.main, *surface_id},
 503                [&] (LayoutState const &nl) {
 504                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutSplit);
 505                   std::string main =
 506                      std::move(*this->lookup_name(state.main));
 507
 508                   this->surface_set_layout(state.main, surface_id);
 509                   if (state.sub != *surface_id) {
 510                       if (state.sub != -1) {
 511                          this->deactivate(state.sub);
 512                       }
 513                   }
 514                   state = nl;
 515
 516                   // Commit for configuration and visibility(0)
 517                   this->layout_commit();
 518
 519                   std::string str_area_main = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
 520                   std::string str_area_sub = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
 521                   compositor::rect area_rect_main = this->area_info[state.main];
 522                   compositor::rect area_rect_sub = this->area_info[*surface_id];
 523                   this->emit_syncdraw(main.c_str(), str_area_main.c_str(),
 524                                       area_rect_main.x, area_rect_main.y,
 525                                       area_rect_main.w, area_rect_main.h);
 526                   this->emit_syncdraw(drawing_name, str_area_sub.c_str(),
 527                                       area_rect_sub.x, area_rect_sub.y,
 528                                       area_rect_sub.w, area_rect_sub.h);
 529                   this->enqueue_flushdraw(state.main);
 530                   this->enqueue_flushdraw(state.sub);
 531                });
 532          } else {
 533             this->try_layout(
 534                state, LayoutState{*surface_id}, [&] (LayoutState const &nl) {
 535                   HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
 536
 537                   this->surface_set_layout(*surface_id);
 538                   if (state.main != *surface_id) {
 539                       this->deactivate(state.main);
 540                   }
 541                   if (state.sub != -1) {
 542                       if (state.sub != *surface_id) {
 543                          this->deactivate(state.sub);
 544                       }
 545                   }
 546                   state = nl;
 547
 548                   // Commit for configuraton and visibility(0)
 549                   this->layout_commit();
 550
 551                   std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 552                   compositor::rect area_rect = this->area_info[*surface_id];
 553                   this->emit_syncdraw(drawing_name, str_area.c_str(),
 554                                       area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 555                   this->enqueue_flushdraw(state.main);
 556                });
 557          }
 558       }
 559    }
 560 }
 561
 562 void App::api_deactivate_surface(char const *drawing_name, const reply_func &reply) {
 563    ST();
 564    auto const &surface_id = this->lookup_id(drawing_name);
 565    WMClient* client = allocate_list.lookupClient(appid);
 566
 567    if (!surface_id) {
 568       reply ("Surface does not exist");
 569       return;
 570    }
 571
 572    if (*surface_id == this->layers.main_surface) {
 573       reply("Cannot deactivate main_surface");
 574       return;
 575    }
 576
 577    auto o_state = *this->layers.get_layout_state(*surface_id);
 578
 579    if (o_state == nullptr) {
 580       reply("Could not find layer for surface");
 581       return;
 582    }
 583
 584    struct LayoutState &state = *o_state;
 585
 586    if (state.main == -1) {
 587       reply("No surface active");
 588       return;
 589    }
 590
 591    // Check against main_surface, main_surface_name is the configuration item.
 592    if (*surface_id == this->layers.main_surface) {
 593       HMI_DEBUG("wm", "Refusing to deactivate main_surface %d", *surface_id);
 594       reply(nullptr);
 595       return;
 596    }
 597    if((state.main == *surface_id) && (state.sub == *surface_id)){
 598        reply("Surface is not active");
 599        return;
 600    }
 601    reply(nullptr);
 602
 603    if (state.main == *surface_id) {
 604       if (state.sub != -1) {
 605          this->try_layout(
 606             state, LayoutState{state.sub, -1}, [&] (LayoutState const &nl) {
 607                std::string sub = std::move(*this->lookup_name(state.sub));
 608
 609                this->deactivate(*surface_id);
 610                this->surface_set_layout(state.sub);
 611                state = nl;
 612
 613                this->layout_commit();
 614                std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 615                compositor::rect area_rect = this->area_info[state.sub];
 616                this->emit_syncdraw(sub.c_str(), str_area.c_str(),
 617                                    area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 618                this->enqueue_flushdraw(state.sub);
 619             });
 620       } else {
 621          this->try_layout(state, LayoutState{-1, -1}, [&] (LayoutState const &nl) {
 622             this->deactivate(*surface_id);
 623             state = nl;
 624             this->layout_commit();
 625          });
 626       }
 627    } else if (state.sub == *surface_id) {
 628       this->try_layout(
 629          state, LayoutState{state.main, -1}, [&] (LayoutState const &nl) {
 630             std::string main = std::move(*this->lookup_name(state.main));
 631
 632             this->deactivate(*surface_id);
 633             this->surface_set_layout(state.main);
 634             state = nl;
 635
 636             this->layout_commit();
 637             std::string str_area = std::string(kNameLayoutNormal) + "." + std::string(kNameAreaFull);
 638             compositor::rect area_rect = this->area_info[state.main];
 639             this->emit_syncdraw(main.c_str(), str_area.c_str(),
 640                                 area_rect.x, area_rect.y, area_rect.w, area_rect.h);
 641             this->enqueue_flushdraw(state.main);
 642          });
 643    }
 644 }
 645
 646 void App::enqueue_flushdraw(int surface_id) {
 647    this->check_flushdraw(surface_id);
 648    HMI_DEBUG("wm", "Enqueuing EndDraw for surface_id %d", surface_id);
 649    this->pending_end_draw.push_back(surface_id);
 650 }
 651
 652 void App::check_flushdraw(int surface_id) {
 653    auto i = std::find(std::begin(this->pending_end_draw),
 654                       std::end(this->pending_end_draw), surface_id);
 655    if (i != std::end(this->pending_end_draw)) {
 656       auto n = this->lookup_name(surface_id);
 657       HMI_ERROR("wm", "Application %s (%d) has pending EndDraw call(s)!",
 658                n ? n->c_str() : "unknown-name", surface_id);
 659       std::swap(this->pending_end_draw[std::distance(
 660                    std::begin(this->pending_end_draw), i)],
 661                 this->pending_end_draw.back());
 662       this->pending_end_draw.resize(this->pending_end_draw.size() - 1);
 663    }
 664 }
 665
 666 void App::api_enddraw(char const *drawing_name) {
 667     unsigned request_seq = allocate_list.searchAllocatingApp(appid);
 668     unsigned current_seq = allocate_list.currentSequence();
 669     if(current_seq != request_seq){
 670         if(request_seq == 0){
 671             HMI_ERROR("[req_num:%d] You don't have Window Resource", request_seq);
 672         }
 673         else{
 674             HMI_ERROR("[req_num:%d] unknown error. Application may not obey the sequence manner. please call endDraw after syncDraw");
 675         }
 676         return;
 677     }
 678     allocate_list.allocate(appid, request_seq);
 679     if(allocate_list.endDrawFullfilled(request_seq)){
 680         // do task for endDraw
 681         do{
 682             // visible application
 683         }while(false);
 684         do{
 685             // emit flush Draw
 686             allocate_list.resetRequest(request_seq);
 687         }while(false);
 688     }
 689     else{
 690         // wait other apps call endDraw
 691     }
 692    for (unsigned i = 0, iend = this->pending_end_draw.size(); i < iend; i++) {
 693       auto n = this->lookup_name(this->pending_end_draw[i]);
 694       if (n && *n == drawing_name) {
 695          std::swap(this->pending_end_draw[i], this->pending_end_draw[iend - 1]);
 696          this->pending_end_draw.resize(iend - 1);
 697          this->activate(this->pending_end_draw[i]);
 698          this->emit_flushdraw(drawing_name);
 699       }
 700    }
 701 }
 702
 703 void App::api_ping() { this->dispatch_pending_events(); }
 704
 705 void App::send_event(char const *evname, char const *label){
 706    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
 707
 708    json_object *j = json_object_new_object();
 709    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 710
 711    int ret = afb_event_push(this->map_afb_event[evname], j);
 712    if (ret != 0) {
 713       HMI_DEBUG("wm", "afb_event_push failed: %m");
 714    }
 715 }
 716
 717 void App::send_event(char const *evname, char const *label, char const *area,
 718                              int x, int y, int w, int h) {
 719    HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
 720              __func__, evname, label, area, x, y, w, h);
 721
 722    json_object *j_rect = json_object_new_object();
 723    json_object_object_add(j_rect, kKeyX,      json_object_new_int(x));
 724    json_object_object_add(j_rect, kKeyY,      json_object_new_int(y));
 725    json_object_object_add(j_rect, kKeyWidth,  json_object_new_int(w));
 726    json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
 727
 728    json_object *j = json_object_new_object();
 729    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
 730    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
 731    json_object_object_add(j, kKeyDrawingRect, j_rect);
 732
 733    int ret = afb_event_push(this->map_afb_event[evname], j);
 734    if (ret != 0) {
 735       HMI_DEBUG("wm", "afb_event_push failed: %m");
 736    }
 737 }
 738
 739 /**
 740  * proxied events
 741  */
 742 void App::surface_created(uint32_t surface_id) {
 743    auto layer_id = this->layers.get_layer_id(surface_id);
 744    if (!layer_id) {
 745       HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
 746                surface_id);
 747       return;
 748    }
 749
 750    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
 751
 752    this->controller->layers[*layer_id]->add_surface(surface_id);
 753    this->layout_commit();
 754    // activate the main_surface right away
 755    /*if (surface_id == static_cast<unsigned>(this->layers.main_surface)) {
 756       HMI_DEBUG("wm", "Activating main_surface (%d)", surface_id);
 757
 758       this->api_activate_surface(
 759          this->lookup_name(surface_id).value_or("unknown-name").c_str());
 760    }*/
 761 }
 762
 763 void App::surface_removed(uint32_t surface_id) {
 764    HMI_DEBUG("wm", "surface_id is %u", surface_id);
 765
 766    // We cannot normally deactivate the main_surface, so be explicit
 767    // about it:
 768    if (int(surface_id) == this->layers.main_surface) {
 769       this->deactivate_main_surface();
 770    } else {
 771       auto drawing_name = this->lookup_name(surface_id);
 772       if (drawing_name) {
 773          this->api_deactivate_surface(drawing_name->c_str(), [](const char*){});
 774       }
 775    }
 776
 777    this->id_alloc.remove_id(surface_id);
 778    this->layers.remove_surface(surface_id);
 779 }
 780
 781 void App::emit_activated(char const *label) {
 782    this->send_event(kListEventName[Event_Active], label);
 783 }
 784
 785 void App::emit_deactivated(char const *label) {
 786    this->send_event(kListEventName[Event_Inactive], label);
 787 }
 788
 789 void App::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h) {
 790    this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
 791 }
 792
 793 void App::emit_flushdraw(char const *label) {
 794    this->send_event(kListEventName[Event_FlushDraw], label);
 795 }
 796
 797 void App::emit_visible(char const *label, bool is_visible) {
 798    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
 799 }
 800
 801 void App::emit_invisible(char const *label) {
 802    return emit_visible(label, false);
 803 }
 804
 805 void App::emit_visible(char const *label) { return emit_visible(label, true); }
 806
 807 result<int> App::api_request_surface(char const *drawing_name, char const * appid, int flag) {
 808    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 809    if (!lid) {
 810       /**
 811        * register drawing_name as fallback and make it displayed.
 812        */
 813       lid = this->layers.get_layer_id(std::string("Fallback"));
 814       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 815       if(!lid){
 816           return Err<int>("Drawing name does not match any role, Fallback is disabled");
 817       }
 818    }
 819
 820    auto rname = this->lookup_id(drawing_name);
 821    if (!rname) {
 822       // name does not exist yet, allocate surface id...
 823       auto id = int(this->id_alloc.generate_id(drawing_name));
 824       this->layers.add_surface(id, *lid);
 825
 826       // set the main_surface[_name] here and now
 827       if (!this->layers.main_surface_name.empty() &&
 828           this->layers.main_surface_name == drawing_name) {
 829          this->layers.main_surface = id;
 830          HMI_DEBUG("wm", "Set main_surface id to %u", id);
 831       }
 832
 833       // add client into the db
 834       WMClient* client = new WMClient(appid, *lid, id, drawing_name); // role is drawing_name for now
 835       allocate_list.addClient(client);
 836
 837       return Ok<int>(id);
 838    }
 839
 840    // Check currently registered drawing names if it is already there.
 841    return Err<int>("Surface already present");
 842 }
 843
 844 char const *App::api_request_surface(char const *drawing_name,
 845                                      char const *ivi_id) {
 846    ST();
 847
 848    auto lid = this->layers.get_layer_id(std::string(drawing_name));
 849    unsigned sid = std::stol(ivi_id);
 850
 851    if (!lid) {
 852       /**
 853        * register drawing_name as fallback and make it displayed.
 854        */
 855       lid = this->layers.get_layer_id(std::string("Fallback"));
 856       HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
 857       if(!lid){
 858           return "Drawing name does not match any role, Fallback is disabled";
 859       }
 860    }
 861
 862    auto rname = this->lookup_id(drawing_name);
 863
 864    if (rname) {
 865        return "Surface already present";
 866    }
 867
 868    // register pair drawing_name and ivi_id
 869    this->id_alloc.register_name_id(drawing_name, sid);
 870    this->layers.add_surface(sid, *lid);
 871
 872    // this surface is already created
 873    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
 874
 875    this->controller->layers[*lid]->add_surface(sid);
 876    this->layout_commit();
 877
 878    return nullptr;
 879 }
 880
 881 result<json_object *> App::api_get_display_info() {
 882    // Check controller
 883    if (!this->controller) {
 884       return Err<json_object *>("ivi_controller global not available");
 885    }
 886
 887    // Set display info
 888    compositor::size o_size = this->controller->output_size;
 889    compositor::size p_size = this->controller->physical_size;
 890
 891    json_object *object = json_object_new_object();
 892    json_object_object_add(object, kKeyWidthPixel,  json_object_new_int(o_size.w));
 893    json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
 894    json_object_object_add(object, kKeyWidthMm,     json_object_new_int(p_size.w));
 895    json_object_object_add(object, kKeyHeightMm,    json_object_new_int(p_size.h));
 896
 897    return Ok<json_object *>(object);
 898 }
 899
 900 result<json_object *> App::api_get_area_info(char const *drawing_name) {
 901    HMI_DEBUG("wm", "called");
 902
 903    // Check drawing name, surface/layer id
 904    auto const &surface_id = this->lookup_id(drawing_name);
 905    if (!surface_id) {
 906       return Err<json_object *>("Surface does not exist");
 907    }
 908
 909    if (!this->controller->surface_exists(*surface_id)) {
 910       return Err<json_object *>("Surface does not exist in controller!");
 911    }
 912
 913    auto layer_id = this->layers.get_layer_id(*surface_id);
 914    if (!layer_id) {
 915       return Err<json_object *>("Surface is not on any layer!");
 916    }
 917
 918    auto o_state = *this->layers.get_layout_state(*surface_id);
 919    if (o_state == nullptr) {
 920       return Err<json_object *>("Could not find layer for surface");
 921    }
 922
 923    struct LayoutState &state = *o_state;
 924    if ((state.main != *surface_id) && (state.sub != *surface_id)) {
 925       return Err<json_object *>("Surface is inactive");
 926    }
 927
 928    // Set area rectangle
 929    compositor::rect area_info = this->area_info[*surface_id];
 930    json_object *object = json_object_new_object();
 931    json_object_object_add(object, kKeyX,      json_object_new_int(area_info.x));
 932    json_object_object_add(object, kKeyY,      json_object_new_int(area_info.y));
 933    json_object_object_add(object, kKeyWidth,  json_object_new_int(area_info.w));
 934    json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
 935
 936    return Ok<json_object *>(object);
 937 }
 938
 939 void App::activate(int id) {
 940    auto ip = this->controller->sprops.find(id);
 941    if (ip != this->controller->sprops.end()) {
 942       this->controller->surfaces[id]->set_visibility(1);
 943       char const *label =
 944          this->lookup_name(id).value_or("unknown-name").c_str();
 945
 946       // FOR CES DEMO >>>
 947       if ((0 == strcmp(label, "Radio"))
 948           || (0 == strcmp(label, "MediaPlayer"))
 949           || (0 == strcmp(label, "Music"))
 950           || (0 == strcmp(label, "Navigation"))) {
 951         for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i) {
 952             if (id == *i) {
 953                // Remove id
 954                this->surface_bg.erase(i);
 955
 956                // Remove from BG layer (999)
 957                HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
 958                this->controller->layers[999]->remove_surface(id);
 959
 960                // Add to FG layer (1001)
 961                HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
 962                this->controller->layers[1001]->add_surface(id);
 963
 964                for (int j : this->surface_bg) {
 965                  HMI_DEBUG("wm", "Stored id:%d", j);
 966                }
 967                break;
 968             }
 969          }
 970       }
 971       // <<< FOR CES DEMO
 972       this->layout_commit();
 973
 974       this->emit_visible(label);
 975       this->emit_activated(label);
 976    }
 977 }
 978
 979 void App::deactivate(int id) {
 980    auto ip = this->controller->sprops.find(id);
 981    if (ip != this->controller->sprops.end()) {
 982       char const *label =
 983          this->lookup_name(id).value_or("unknown-name").c_str();
 984
 985       // FOR CES DEMO >>>
 986       if ((0 == strcmp(label, "Radio"))
 987           || (0 == strcmp(label, "MediaPlayer"))
 988           || (0 == strcmp(label, "Music"))
 989           || (0 == strcmp(label, "Navigation"))) {
 990
 991          // Store id
 992          this->surface_bg.push_back(id);
 993
 994          // Remove from FG layer (1001)
 995          HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
 996          this->controller->layers[1001]->remove_surface(id);
 997
 998          // Add to BG layer (999)
 999          HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
1000          this->controller->layers[999]->add_surface(id);
1001
1002          for (int j : surface_bg) {
1003             HMI_DEBUG("wm", "Stored id:%d", j);
1004          }
1005       }
1006       else {
1007          this->controller->surfaces[id]->set_visibility(0);
1008       }
1009       // <<< FOR CES DEMO
1010
1011       this->emit_deactivated(label);
1012       this->emit_invisible(label);
1013    }
1014 }
1015
1016 void App::deactivate_main_surface() {
1017    this->layers.main_surface = -1;
1018    this->api_deactivate_surface(this->layers.main_surface_name.c_str(), [](const char*){});
1019 }
1020
1021 bool App::can_split(struct LayoutState const &state, int new_id) {
1022    if (state.main != -1 && state.main != new_id) {
1023       auto new_id_layer = this->layers.get_layer_id(new_id).value();
1024       auto current_id_layer = this->layers.get_layer_id(state.main).value();
1025
1026       // surfaces are on separate layers, don't bother.
1027       if (new_id_layer != current_id_layer) {
1028          return false;
1029       }
1030
1031       std::string const &new_id_str = this->lookup_name(new_id).value();
1032       std::string const &cur_id_str = this->lookup_name(state.main).value();
1033
1034       auto const &layer = this->layers.get_layer(new_id_layer);
1035
1036       HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
1037
1038       if (layer->layouts.empty()) {
1039          return false;
1040       }
1041
1042       for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++) {
1043          HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
1044          auto rem = std::regex(i->main_match);
1045          if (std::regex_match(cur_id_str, rem)) {
1046             // build the second one only if the first already matched
1047             HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
1048             auto res = std::regex(i->sub_match);
1049             if (std::regex_match(new_id_str, res)) {
1050                HMI_DEBUG("wm", "layout matched!");
1051                return true;
1052             }
1053          }
1054       }
1055    }
1056
1057    return false;
1058 }
1059
1060 void App::try_layout(struct LayoutState & /*state*/,
1061                      struct LayoutState const &new_layout,
1062                      std::function<void(LayoutState const &nl)> apply) {
1063    if (this->policy.layout_is_valid(new_layout)) {
1064       apply(new_layout);
1065    }
1066 }
1067
1068 /**
1069  * controller_hooks
1070  */
1071 void controller_hooks::surface_created(uint32_t surface_id) {
1072    this->app->surface_created(surface_id);
1073 }
1074
1075 void controller_hooks::surface_removed(uint32_t surface_id) {
1076    this->app->surface_removed(surface_id);
1077 }
1078
1079 void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
1080                                           uint32_t /*v*/) {}
1081
1082 void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
1083                                                      uint32_t /*x*/,
1084                                                      uint32_t /*y*/,
1085                                                      uint32_t /*w*/,
1086                                                      uint32_t /*h*/) {}
1087
1088 }  // namespace wm