src/layers.cpp

   1 /*
   2  * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
   3  * Copyright (c) 2018 Konsulko Group
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #include <regex>
  19
  20 #include "layers.hpp"
  21 #include "json_helper.hpp"
  22 #include "util.hpp"
  23 #include "hmi-debug.h"
  24
  25 namespace wm
  26 {
  27
  28 using json = nlohmann::json;
  29
  30 layer::layer(nlohmann::json const &j)
  31 {
  32     this->role = j["role"];
  33     this->name = j["name"];
  34     this->layer_id = j["layer_id"];
  35
  36     // Init flag of normal layout only
  37     this->is_normal_layout_only = true;
  38
  39     auto split_layouts = j.find("split_layouts");
  40     if (split_layouts != j.end())
  41     {
  42
  43         // Clear flag of normal layout only
  44         this->is_normal_layout_only = false;
  45
  46         auto &sls = j["split_layouts"];
  47         // this->layouts.reserve(sls.size());
  48         std::transform(std::cbegin(sls), std::cend(sls),
  49                        std::back_inserter(this->layouts), [this](json const &sl) {
  50                            struct split_layout l
  51                            {
  52                                sl["name"], sl["main_match"], sl["sub_match"]
  53                            };
  54                            HMI_DEBUG("wm",
  55                                      "layer %d add split_layout \"%s\" (main: \"%s\") (sub: "
  56                                      "\"%s\")",
  57                                      this->layer_id,
  58                                      l.name.c_str(), l.main_match.c_str(),
  59                                      l.sub_match.c_str());
  60                            return l;
  61                        });
  62     }
  63     HMI_DEBUG("wm", "layer_id:%d is_normal_layout_only:%d\n",
  64               this->layer_id, this->is_normal_layout_only);
  65 }
  66
  67 struct result<struct layer_map> to_layer_map(nlohmann::json const &j)
  68 {
  69     try
  70     {
  71         layer_map stl{};
  72         auto m = j["mappings"];
  73
  74         std::transform(std::cbegin(m), std::cend(m),
  75                        std::inserter(stl.mapping, stl.mapping.end()),
  76                        [](nlohmann::json const &j) {
  77                            return std::pair<int, struct layer>(
  78                                j.value("layer_id", -1), layer(j));
  79                        });
  80
  81         // TODO: add sanity checks here?
  82         // * check for double IDs
  83         // * check for double names/roles
  84
  85         stl.layers.reserve(m.size());
  86         std::transform(std::cbegin(stl.mapping), std::cend(stl.mapping),
  87                        std::back_inserter(stl.layers),
  88                        [&stl](std::pair<int, struct layer> const &k) {
  89                            stl.roles.emplace_back(
  90                                std::make_pair(k.second.role, k.second.layer_id));
  91                            return unsigned(k.second.layer_id);
  92                        });
  93
  94         std::sort(stl.layers.begin(), stl.layers.end());
  95
  96         for (auto i : stl.mapping)
  97         {
  98             if (i.second.name.empty())
  99             {
 100                 return Err<struct layer_map>("Found mapping w/o name");
 101             }
 102             if (i.second.layer_id == -1)
 103             {
 104                 return Err<struct layer_map>("Found invalid/unset IDs in mapping");
 105             }
 106         }
 107
 108         auto msi = j.find("main_surface");
 109         if (msi != j.end())
 110         {
 111             stl.main_surface_name = msi->value("surface_role", "");
 112             stl.main_surface = -1;
 113         }
 114
 115         return Ok(stl);
 116     }
 117     catch (std::exception &e)
 118     {
 119         return Err<struct layer_map>(e.what());
 120     }
 121 }
 122
 123 optional<int>
 124 layer_map::get_layer_id(int surface_id)
 125 {
 126     auto i = this->surfaces.find(surface_id);
 127     if (i != this->surfaces.end())
 128     {
 129         return optional<int>(i->second);
 130     }
 131     return nullopt;
 132 }
 133
 134 optional<int> layer_map::get_layer_id(std::string const &role)
 135 {
 136     for (auto const &r : this->roles)
 137     {
 138         auto re = std::regex(r.first);
 139         if (std::regex_match(role, re))
 140         {
 141             HMI_DEBUG("wm", "role %s matches layer %d", role.c_str(), r.second);
 142             return optional<int>(r.second);
 143         }
 144     }
 145     HMI_DEBUG("wm", "role %s does NOT match any layer", role.c_str());
 146     return nullopt;
 147 }
 148
 149 json layer::to_json() const
 150 {
 151     auto is_full = this->rect == compositor::full_rect;
 152
 153     json r{};
 154     if (is_full)
 155     {
 156         r = {{"type", "full"}};
 157     }
 158     else
 159     {
 160         r = {{"type", "rect"},
 161              {"rect",
 162               {{"x", this->rect.x},
 163                {"y", this->rect.y},
 164                {"width", this->rect.w},
 165                {"height", this->rect.h}}}};
 166     }
 167
 168     return {
 169         {"name", this->name},
 170         {"role", this->role},
 171         {"layer_id", this->layer_id},
 172         {"area", r},
 173     };
 174 }
 175
 176 json layer_map::to_json() const
 177 {
 178     json j{};
 179     for (auto const &i : this->mapping)
 180     {
 181         j.push_back(i.second.to_json());
 182     }
 183     return j;
 184 }
 185
 186 void layer_map::setupArea(double scaling)
 187 {
 188     compositor::rect rct;
 189
 190     rct = this->area2size["normal.full"];
 191     this->area2size["normalfull"] = rct;
 192     this->area2size["normal"] = rct;
 193
 194     for (auto &i : this->area2size)
 195     {
 196         i.second.x = static_cast<int>(scaling * i.second.x + 0.5);
 197         i.second.y = static_cast<int>(scaling * i.second.y + 0.5);
 198         i.second.w = static_cast<int>(scaling * i.second.w + 0.5);
 199         i.second.h = static_cast<int>(scaling * i.second.h + 0.5);
 200
 201         HMI_DEBUG("wm:lm", "area:%s size(after) : x:%d y:%d w:%d h:%d",
 202             i.first.c_str(), i.second.x, i.second.y, i.second.w, i.second.h);
 203     }
 204 }
 205
 206 compositor::rect layer_map::getAreaSize(const std::string &area)
 207 {
 208     return area2size[area];
 209 }
 210
 211 int layer_map::loadAreaDb()
 212 {
 213     HMI_DEBUG("wm:lm", "Call");
 214
 215     std::string file_name(get_file_path("areas.db"));
 216
 217     // Load area.db
 218     json_object *json_obj;
 219     int ret = jh::inputJsonFilie(file_name.c_str(), &json_obj);
 220     if (0 > ret)
 221     {
 222         HMI_DEBUG("wm:lm", "Could not open area.db, so use default area information");
 223         json_obj = json_tokener_parse(kDefaultAreaDb);
 224     }
 225     HMI_DEBUG("wm:lm", "json_obj dump:%s", json_object_get_string(json_obj));
 226
 227     // Perse areas
 228     HMI_DEBUG("wm:lm", "Perse areas");
 229     json_object *json_cfg;
 230     if (!json_object_object_get_ex(json_obj, "areas", &json_cfg))
 231     {
 232         HMI_ERROR("wm:lm", "Parse Error!!");
 233         return -1;
 234     }
 235
 236     int len = json_object_array_length(json_cfg);
 237     HMI_DEBUG("wm:lm", "json_cfg len:%d", len);
 238     HMI_DEBUG("wm:lm", "json_cfg dump:%s", json_object_get_string(json_cfg));
 239
 240     const char *area;
 241     for (int i = 0; i < len; i++)
 242     {
 243         json_object *json_tmp = json_object_array_get_idx(json_cfg, i);
 244         HMI_DEBUG("wm:lm", "> json_tmp dump:%s", json_object_get_string(json_tmp));
 245
 246         area = jh::getStringFromJson(json_tmp, "name");
 247         if (nullptr == area)
 248         {
 249             HMI_ERROR("wm:lm", "Parse Error!!");
 250             return -1;
 251         }
 252         HMI_DEBUG("wm:lm", "> area:%s", area);
 253
 254         json_object *json_rect;
 255         if (!json_object_object_get_ex(json_tmp, "rect", &json_rect))
 256         {
 257             HMI_ERROR("wm:lm", "Parse Error!!");
 258             return -1;
 259         }
 260         HMI_DEBUG("wm:lm", "> json_rect dump:%s", json_object_get_string(json_rect));
 261
 262         compositor::rect area_size;
 263         area_size.x = jh::getIntFromJson(json_rect, "x");
 264         area_size.y = jh::getIntFromJson(json_rect, "y");
 265         area_size.w = jh::getIntFromJson(json_rect, "w");
 266         area_size.h = jh::getIntFromJson(json_rect, "h");
 267
 268         this->area2size[area] = area_size;
 269     }
 270
 271     // Check
 272     for (auto itr = this->area2size.begin();
 273          itr != this->area2size.end(); ++itr)
 274     {
 275         HMI_DEBUG("wm:lm", "area:%s x:%d y:%d w:%d h:%d",
 276                   itr->first.c_str(), itr->second.x, itr->second.y,
 277                   itr->second.w, itr->second.h);
 278     }
 279
 280     // Release json_object
 281     json_object_put(json_obj);
 282
 283     return 0;
 284 }
 285
 286 const char* layer_map::kDefaultAreaDb = "{ \
 287     \"areas\": [ \
 288         { \
 289             \"name\": \"fullscreen\", \
 290             \"rect\": { \
 291                 \"x\": 0, \
 292                 \"y\": 0, \
 293                 \"w\": 1080, \
 294                 \"h\": 1920 \
 295             } \
 296         }, \
 297         { \
 298             \"name\": \"normal.full\", \
 299             \"rect\": { \
 300                 \"x\": 0, \
 301                 \"y\": 218, \
 302                 \"w\": 1080, \
 303                 \"h\": 1488 \
 304             } \
 305         }, \
 306         { \
 307             \"name\": \"split.main\", \
 308             \"rect\": { \
 309                 \"x\": 0, \
 310                 \"y\": 218, \
 311                 \"w\": 1080, \
 312                 \"h\": 744 \
 313             } \
 314         }, \
 315         { \
 316             \"name\": \"split.sub\", \
 317             \"rect\": { \
 318                 \"x\": 0, \
 319                 \"y\": 962, \
 320                 \"w\": 1080, \
 321                 \"h\": 744 \
 322             } \
 323         }, \
 324         { \
 325             \"name\": \"software_keyboard\", \
 326             \"rect\": { \
 327                 \"x\": 0, \
 328                 \"y\": 962, \
 329                 \"w\": 1080, \
 330                 \"h\": 744 \
 331             } \
 332         }, \
 333         { \
 334             \"name\": \"restriction.normal\", \
 335             \"rect\": { \
 336                 \"x\": 0, \
 337                 \"y\": 218, \
 338                 \"w\": 1080, \
 339                 \"h\": 1488 \
 340             } \
 341         }, \
 342         { \
 343             \"name\": \"restriction.split.main\", \
 344             \"rect\": { \
 345                 \"x\": 0, \
 346                 \"y\": 218, \
 347                 \"w\": 1080, \
 348                 \"h\": 744 \
 349             } \
 350         }, \
 351         { \
 352             \"name\": \"restriction.split.sub\", \
 353             \"rect\": { \
 354                 \"x\": 0, \
 355                 \"y\": 962, \
 356                 \"w\": 1080, \
 357                 \"h\": 744 \
 358             } \
 359         }, \
 360         { \
 361             \"name\": \"on_screen\", \
 362             \"rect\": { \
 363                 \"x\": 0, \
 364                 \"y\": 218, \
 365                 \"w\": 1080, \
 366                 \"h\": 1488 \
 367             } \
 368         } \
 369     ] \
 370 }";
 371
 372 } // namespace wm