src/layers.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 <regex>
  18
  19 #include "layers.hpp"
  20 #include "json_helper.hpp"
  21 #include "hmi-debug.h"
  22
  23 namespace wm
  24 {
  25
  26 using json = nlohmann::json;
  27
  28 layer::layer(nlohmann::json const &j)
  29 {
  30     this->role = j["role"];
  31     this->name = j["name"];
  32     this->layer_id = j["layer_id"];
  33
  34     // Init flag of normal layout only
  35     this->is_normal_layout_only = true;
  36
  37     auto split_layouts = j.find("split_layouts");
  38     if (split_layouts != j.end())
  39     {
  40
  41         // Clear flag of normal layout only
  42         this->is_normal_layout_only = false;
  43
  44         auto &sls = j["split_layouts"];
  45         // this->layouts.reserve(sls.size());
  46         std::transform(std::cbegin(sls), std::cend(sls),
  47                        std::back_inserter(this->layouts), [this](json const &sl) {
  48                            struct split_layout l
  49                            {
  50                                sl["name"], sl["main_match"], sl["sub_match"]
  51                            };
  52                            HMI_DEBUG("wm",
  53                                      "layer %d add split_layout \"%s\" (main: \"%s\") (sub: "
  54                                      "\"%s\")",
  55                                      this->layer_id,
  56                                      l.name.c_str(), l.main_match.c_str(),
  57                                      l.sub_match.c_str());
  58                            return l;
  59                        });
  60     }
  61     HMI_DEBUG("wm", "layer_id:%d is_normal_layout_only:%d\n",
  62               this->layer_id, this->is_normal_layout_only);
  63 }
  64
  65 struct result<struct layer_map> to_layer_map(nlohmann::json const &j)
  66 {
  67     try
  68     {
  69         layer_map stl{};
  70         auto m = j["mappings"];
  71
  72         std::transform(std::cbegin(m), std::cend(m),
  73                        std::inserter(stl.mapping, stl.mapping.end()),
  74                        [](nlohmann::json const &j) {
  75                            return std::pair<int, struct layer>(
  76                                j.value("layer_id", -1), layer(j));
  77                        });
  78
  79         // TODO: add sanity checks here?
  80         // * check for double IDs
  81         // * check for double names/roles
  82
  83         stl.layers.reserve(m.size());
  84         std::transform(std::cbegin(stl.mapping), std::cend(stl.mapping),
  85                        std::back_inserter(stl.layers),
  86                        [&stl](std::pair<int, struct layer> const &k) {
  87                            stl.roles.emplace_back(
  88                                std::make_pair(k.second.role, k.second.layer_id));
  89                            return unsigned(k.second.layer_id);
  90                        });
  91
  92         std::sort(stl.layers.begin(), stl.layers.end());
  93
  94         for (auto i : stl.mapping)
  95         {
  96             if (i.second.name.empty())
  97             {
  98                 return Err<struct layer_map>("Found mapping w/o name");
  99             }
 100             if (i.second.layer_id == -1)
 101             {
 102                 return Err<struct layer_map>("Found invalid/unset IDs in mapping");
 103             }
 104         }
 105
 106         auto msi = j.find("main_surface");
 107         if (msi != j.end())
 108         {
 109             stl.main_surface_name = msi->value("surface_role", "");
 110             stl.main_surface = -1;
 111         }
 112
 113         return Ok(stl);
 114     }
 115     catch (std::exception &e)
 116     {
 117         return Err<struct layer_map>(e.what());
 118     }
 119 }
 120
 121 optional<int>
 122 layer_map::get_layer_id(int surface_id)
 123 {
 124     auto i = this->surfaces.find(surface_id);
 125     if (i != this->surfaces.end())
 126     {
 127         return optional<int>(i->second);
 128     }
 129     return nullopt;
 130 }
 131
 132 optional<int> layer_map::get_layer_id(std::string const &role)
 133 {
 134     for (auto const &r : this->roles)
 135     {
 136         auto re = std::regex(r.first);
 137         if (std::regex_match(role, re))
 138         {
 139             HMI_DEBUG("wm", "role %s matches layer %d", role.c_str(), r.second);
 140             return optional<int>(r.second);
 141         }
 142     }
 143     HMI_DEBUG("wm", "role %s does NOT match any layer", role.c_str());
 144     return nullopt;
 145 }
 146
 147 json layer::to_json() const
 148 {
 149     auto is_full = this->rect == compositor::full_rect;
 150
 151     json r{};
 152     if (is_full)
 153     {
 154         r = {{"type", "full"}};
 155     }
 156     else
 157     {
 158         r = {{"type", "rect"},
 159              {"rect",
 160               {{"x", this->rect.x},
 161                {"y", this->rect.y},
 162                {"width", this->rect.w},
 163                {"height", this->rect.h}}}};
 164     }
 165
 166     return {
 167         {"name", this->name},
 168         {"role", this->role},
 169         {"layer_id", this->layer_id},
 170         {"area", r},
 171     };
 172 }
 173
 174 json layer_map::to_json() const
 175 {
 176     json j{};
 177     for (auto const &i : this->mapping)
 178     {
 179         j.push_back(i.second.to_json());
 180     }
 181     return j;
 182 }
 183
 184 void layer_map::setupArea(int output_w, int output_h)
 185 {
 186     compositor::rect rct;
 187
 188     rct = this->area2size["normal.full"];
 189     this->area2size["normalfull"] = rct;
 190     this->area2size["normal"] = rct;
 191
 192     for (auto &i : this->area2size)
 193     {
 194         HMI_DEBUG("wm:lm", "area:%s size(after) : x:%d y:%d w:%d h:%d",
 195             i.first.c_str(), i.second.x, i.second.y, i.second.w, i.second.h);
 196     }
 197 }
 198
 199 compositor::rect layer_map::getAreaSize(const std::string &area)
 200 {
 201     return area2size[area];
 202 }
 203
 204 int layer_map::loadAreaDb()
 205 {
 206     HMI_DEBUG("wm:lm", "Call");
 207
 208     // Get afm application installed dir
 209     char const *afm_app_install_dir = getenv("AFM_APP_INSTALL_DIR");
 210     HMI_DEBUG("wm:lm", "afm_app_install_dir:%s", afm_app_install_dir);
 211
 212     std::string file_name;
 213     if (!afm_app_install_dir)
 214     {
 215         HMI_ERROR("wm:lm", "AFM_APP_INSTALL_DIR is not defined");
 216     }
 217     else
 218     {
 219         file_name = std::string(afm_app_install_dir) + std::string("/etc/areas.db");
 220     }
 221
 222     // Load area.db
 223     json_object *json_obj;
 224     int ret = jh::inputJsonFilie(file_name.c_str(), &json_obj);
 225     if (0 > ret)
 226     {
 227         HMI_DEBUG("wm:lm", "Could not open area.db, so use default area information");
 228         json_obj = json_tokener_parse(kDefaultAreaDb);
 229     }
 230     HMI_DEBUG("wm:lm", "json_obj dump:%s", json_object_get_string(json_obj));
 231
 232     // Perse areas
 233     HMI_DEBUG("wm:lm", "Perse areas");
 234     json_object *json_cfg;
 235     if (!json_object_object_get_ex(json_obj, "areas", &json_cfg))
 236     {
 237         HMI_ERROR("wm:lm", "Parse Error!!");
 238         return -1;
 239     }
 240
 241     int len = json_object_array_length(json_cfg);
 242     HMI_DEBUG("wm:lm", "json_cfg len:%d", len);
 243     HMI_DEBUG("wm:lm", "json_cfg dump:%s", json_object_get_string(json_cfg));
 244
 245     const char *area;
 246     for (int i = 0; i < len; i++)
 247     {
 248         json_object *json_tmp = json_object_array_get_idx(json_cfg, i);
 249         HMI_DEBUG("wm:lm", "> json_tmp dump:%s", json_object_get_string(json_tmp));
 250
 251         area = jh::getStringFromJson(json_tmp, "name");
 252         if (nullptr == area)
 253         {
 254             HMI_ERROR("wm:lm", "Parse Error!!");
 255             return -1;
 256         }
 257         HMI_DEBUG("wm:lm", "> area:%s", area);
 258
 259         json_object *json_rect;
 260         if (!json_object_object_get_ex(json_tmp, "rect", &json_rect))
 261         {
 262             HMI_ERROR("wm:lm", "Parse Error!!");
 263             return -1;
 264         }
 265         HMI_DEBUG("wm:lm", "> json_rect dump:%s", json_object_get_string(json_rect));
 266
 267         compositor::rect area_size;
 268         area_size.x = jh::getIntFromJson(json_rect, "x");
 269         area_size.y = jh::getIntFromJson(json_rect, "y");
 270         area_size.w = jh::getIntFromJson(json_rect, "w");
 271         area_size.h = jh::getIntFromJson(json_rect, "h");
 272
 273         this->area2size[area] = area_size;
 274     }
 275
 276     // Check
 277     for (auto itr = this->area2size.begin();
 278          itr != this->area2size.end(); ++itr)
 279     {
 280         HMI_DEBUG("wm:lm", "area:%s x:%d y:%d w:%d h:%d",
 281                   itr->first.c_str(), itr->second.x, itr->second.y,
 282                   itr->second.w, itr->second.h);
 283     }
 284
 285     // Release json_object
 286     json_object_put(json_obj);
 287
 288     return 0;
 289 }
 290
 291 const char* layer_map::kDefaultAreaDb = "{ \
 292     \"areas\": [ \
 293         { \
 294             \"name\": \"fullscreen\", \
 295             \"rect\": { \
 296                 \"x\": 0, \
 297                 \"y\": 0, \
 298                 \"w\": 1080, \
 299                 \"h\": 1920 \
 300             } \
 301         }, \
 302         { \
 303             \"name\": \"normal.full\", \
 304             \"rect\": { \
 305                 \"x\": 0, \
 306                 \"y\": 218, \
 307                 \"w\": 1080, \
 308                 \"h\": 1488 \
 309             } \
 310         }, \
 311         { \
 312             \"name\": \"split.main\", \
 313             \"rect\": { \
 314                 \"x\": 0, \
 315                 \"y\": 218, \
 316                 \"w\": 1080, \
 317                 \"h\": 744 \
 318             } \
 319         }, \
 320         { \
 321             \"name\": \"split.sub\", \
 322             \"rect\": { \
 323                 \"x\": 0, \
 324                 \"y\": 962, \
 325                 \"w\": 1080, \
 326                 \"h\": 744 \
 327             } \
 328         }, \
 329         { \
 330             \"name\": \"software_keyboard\", \
 331             \"rect\": { \
 332                 \"x\": 0, \
 333                 \"y\": 962, \
 334                 \"w\": 1080, \
 335                 \"h\": 744 \
 336             } \
 337         }, \
 338         { \
 339             \"name\": \"restriction.normal\", \
 340             \"rect\": { \
 341                 \"x\": 0, \
 342                 \"y\": 218, \
 343                 \"w\": 1080, \
 344                 \"h\": 1488 \
 345             } \
 346         }, \
 347         { \
 348             \"name\": \"restriction.split.main\", \
 349             \"rect\": { \
 350                 \"x\": 0, \
 351                 \"y\": 218, \
 352                 \"w\": 1080, \
 353                 \"h\": 744 \
 354             } \
 355         }, \
 356         { \
 357             \"name\": \"restriction.split.sub\", \
 358             \"rect\": { \
 359                 \"x\": 0, \
 360                 \"y\": 962, \
 361                 \"w\": 1080, \
 362                 \"h\": 744 \
 363             } \
 364         }, \
 365         { \
 366             \"name\": \"on_screen\", \
 367             \"rect\": { \
 368                 \"x\": 0, \
 369                 \"y\": 218, \
 370                 \"w\": 1080, \
 371                 \"h\": 1488 \
 372             } \
 373         } \
 374     ] \
 375 }";
 376
 377 } // namespace wm