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+/*
+ * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef WINDOW_MANAGER_HPP
+#define WINDOW_MANAGER_HPP
+
+#include <atomic>
+#include <memory>
+#include <unordered_map>
+#include <experimental/optional>
+#include "result.hpp"
+#include "pm_wrapper.hpp"
+#include "util.hpp"
+#include "request.hpp"
+#include "wm_error.hpp"
+#include "wm_layer_control.hpp"
+#include "wm_connection.hpp"
+#include "low_can_client.hpp"
+extern "C"
+{
+#include <afb/afb-binding.h>
+}
+
+struct json_object;
+
+namespace wm
+{
+
+using std::experimental::optional;
+
+/* DrawingArea name used by "{layout}.{area}" */
+extern const char kNameLayoutNormal[];
+extern const char kNameLayoutSplit[];
+extern const char kNameAreaFull[];
+extern const char kNameAreaMain[];
+extern const char kNameAreaSub[];
+
+/* Key for json obejct */
+extern const char kKeyDrawingName[];
+extern const char kKeyDrawingArea[];
+extern const char kKeyDrawingRect[];
+extern const char kKeyX[];
+extern const char kKeyY[];
+extern const char kKeyWidth[];
+extern const char kKeyHeigh[];
+extern const char kKeyWidthPixel[];
+extern const char kKeyHeightPixel[];
+extern const char kKeyWidthMm[];
+extern const char kKeyHeightMm[];
+extern const char kKeyScale[];
+extern const char kKeyIds[];
+
+struct id_allocator
+{
+ unsigned next = 1;
+
+ // Surfaces that where requested but not yet created
+ std::unordered_map<unsigned, std::string> id2name;
+ std::unordered_map<std::string, unsigned> name2id;
+
+ id_allocator(id_allocator const &) = delete;
+ id_allocator(id_allocator &&) = delete;
+ id_allocator &operator=(id_allocator const &);
+ id_allocator &operator=(id_allocator &&) = delete;
+
+ // Insert and return a new ID
+ unsigned generate_id(std::string const &name)
+ {
+ unsigned sid = this->next++;
+ this->id2name[sid] = name;
+ this->name2id[name] = sid;
+ HMI_DEBUG("allocated new id %u with name %s", sid, name.c_str());
+ return sid;
+ }
+
+ // Insert a new ID which defined outside
+ void register_name_id(std::string const &name, unsigned sid)
+ {
+ this->id2name[sid] = name;
+ this->name2id[name] = sid;
+ HMI_DEBUG("register id %u with name %s", sid, name.c_str());
+ return;
+ }
+
+ // Lookup by ID or by name
+ optional<unsigned> lookup(std::string const &name) const
+ {
+ auto i = this->name2id.find(name);
+ return i == this->name2id.end() ? nullopt : optional<unsigned>(i->second);
+ }
+
+ optional<std::string> lookup(unsigned id) const
+ {
+ auto i = this->id2name.find(id);
+ return i == this->id2name.end() ? nullopt
+ : optional<std::string>(i->second);
+ }
+
+ // Remove a surface id and name
+ void remove_id(std::string const &name)
+ {
+ auto i = this->name2id.find(name);
+ if (i != this->name2id.end())
+ {
+ this->id2name.erase(i->second);
+ this->name2id.erase(i);
+ }
+ }
+
+ void remove_id(unsigned id)
+ {
+ auto i = this->id2name.find(id);
+ if (i != this->id2name.end())
+ {
+ this->name2id.erase(i->second);
+ this->id2name.erase(i);
+ }
+ }
+};
+
+struct TmpClient
+{
+ std::string appid;
+ unsigned pid;
+};
+
+struct TmpService
+{
+ std::string appid; // Used to search who create service surface
+ std::string dest; // Used to attach service to destination application
+ std::string service;// The name of service surface
+ std::string uuid; // uuid
+ TmpService(const std::string& app, const std::string& dst,
+ const std::string& svc, const std::string& uuid)
+ : appid(app), dest(dst), service(svc), uuid(uuid) {}
+};
+
+struct CarInfo
+{
+ CarInfo()
+ : parking_brake_stt(true),
+ accel_pedal_stt(false),
+ accel_pedal_pos(0.0),
+ running_stt(false),
+ headlamp_stt(false),
+ lightstatus_brake_stt(true)
+ {};
+
+ bool parking_brake_stt;
+ bool accel_pedal_stt;
+ double accel_pedal_pos;
+ bool running_stt;
+ bool headlamp_stt;
+ bool lightstatus_brake_stt;
+};
+
+class WindowManager
+{
+ public:
+ typedef std::unordered_map<uint32_t, struct rect> rect_map;
+ typedef std::function<void(const char *err_msg)> reply_func;
+
+ enum EventType
+ {
+ Event_Val_Min = 0,
+
+ Event_Active = Event_Val_Min,
+ Event_Inactive,
+
+ Event_Visible,
+ Event_Invisible,
+
+ Event_SyncDraw,
+ Event_FlushDraw,
+
+ Event_ScreenUpdated,
+
+ Event_HeadlampOff,
+ Event_HeadlampOn,
+
+ Event_ParkingBrakeOff,
+ Event_ParkingBrakeOn,
+
+ Event_LightstatusBrakeOff,
+ Event_LightstatusBrakeOn,
+
+ Event_CarStop,
+ Event_CarRun,
+
+ Event_Error,
+
+ Event_Val_Max = Event_Error,
+ };
+
+ explicit WindowManager();
+ ~WindowManager() = default;
+
+ WindowManager(WindowManager const &) = delete;
+ WindowManager &operator=(WindowManager const &) = delete;
+ WindowManager(WindowManager &&) = delete;
+ WindowManager &operator=(WindowManager &&) = delete;
+
+ int init();
+
+ result<int> api_request_surface(char const *appid, char const *role);
+ char const *api_request_surface(char const *appid, char const *role, char const *ivi_id);
+ bool api_set_role(char const *appid, char const *role);
+ void api_activate_surface(char const *appid, char const *role, char const *drawing_area, const reply_func &reply);
+ void api_activate_surface_for_slave(char const *appid, char const *drawing_name,
+ char const *drawing_area, const reply_func &reply);
+ void api_activate_surface_to_master(char const *appid, char const *drawing_name,
+ char const *drawing_area, const reply_func &reply);
+ void api_deactivate_surface(char const *appid, char const *role, const reply_func &reply);
+ void api_deactivate_surface_for_slave(char const *appid, char const *drawing_name,
+ const reply_func &reply);
+ void api_deactivate_surface_to_master(char const *appid, char const *drawing_name,
+ const reply_func &reply);
+ void api_enddraw(char const *appid, char const *role);
+ void api_enddraw_for_remote(char const *appid, char const *drawing_name);
+ bool api_client_set_render_order(const char *appid, const std::vector<std::string> &render_order);
+ std::string api_client_attach_service_surface(const char* appid, const char* dest, const char* service_surface);
+ result<json_object *> api_get_display_info();
+ result<json_object *> api_get_area_info(char const *role);
+ result<json_object *> api_get_car_info(char const *label);
+ void send_event(char const *evname);
+ void send_event(char const *evname, char const *label);
+ void send_event(char const *evname, char const *label, char const *area, int x, int y, int w, int h);
+
+ // Events from the compositor we are interested in
+ void surface_created(unsigned pid, unsigned surface_id);
+ void surface_removed(unsigned surface_id);
+
+ void removeClient(const std::string &appid);
+ void exceptionProcessForTransition();
+ const char* convertRoleOldToNew(char const *role);
+
+ void analyzeReceivedEvent(const char *event, struct json_object *object);
+
+ // Do not use this function
+ void timerHandler();
+ void startTransitionWrapper(std::vector<WMAction> &actions);
+ void processError(WMError error);
+ void processForRemoteRequest(json_object *data);
+ std::string searchApp(unsigned pid, unsigned ppid, unsigned surface, json_object* resp);
+ void storeSurface(const std::string& appid, unsigned ppid, unsigned surface);
+
+ const std::vector<const char *> kListEventName{
+ "active",
+ "inactive",
+ "visible",
+ "invisible",
+ "syncDraw",
+ "flushDraw",
+ "screenUpdated",
+ "headlampOff",
+ "headlampOn",
+ "parkingBrakeOff",
+ "parkingBrakeOn",
+ "lightstatusBrakeOff",
+ "lightstatusBrakeOn",
+ "carStop",
+ "carRun",
+ "error"};
+ std::map<const char *, struct afb_event> map_afb_event;
+
+ WMConnection wmcon;
+
+ private:
+ // WM Events to clients
+ void emit_activated(char const *label);
+ void emit_deactivated(char const *label);
+ void emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h);
+ void emit_syncdraw(const std::string &role, const std::string &area);
+ void emit_flushdraw(char const *label);
+ void emit_visible(char const *label, bool is_visible);
+ void emit_invisible(char const *label);
+ void emit_visible(char const *label);
+ void emitHeadlampOff();
+ void emitHeadlampOn();
+ void emitParkingBrakeOff();
+ void emitParkingBrakeOn();
+ void emitLightstatusBrakeOff();
+ void emitLightstatusBrakeOn();
+ void emitCarStop();
+ void emitCarRun();
+
+ WMError setRequest(const std::string &appid, const std::string &role, const std::string &area,
+ Task task, unsigned *req_num);
+ WMError setRequest(Task task, unsigned* req_num);
+ WMError setRequestForSlave(const std::string& appid, const std::string &role,
+ const std::string &area, Task task, unsigned* req_num);
+ WMError checkPolicy(unsigned req_num);
+ WMError checkPolicyForSlave(unsigned req_num);
+ WMError startTransition(unsigned req_num);
+ void transitionCarState(TaskCarState task);
+
+ WMError doEndDraw(unsigned req_num);
+ void emitScreenUpdated(unsigned req_num);
+
+ void setTimer();
+ void stopTimer();
+ void processNextRequest();
+
+ int loadOldRolesConfigFile();
+
+ Task convertCanSignalToCarStateTask(const char *signal_name);
+ void inputCarStateTask(Task task);
+
+ const char *check_surface_exist(const char *role);
+
+ private:
+ std::unordered_map<std::string, std::string> roleold2new;
+ std::unordered_map<std::string, std::string> rolenew2old;
+ std::shared_ptr<LayerControl> lc;
+
+ LowCanClient lcc;
+ CarInfo crr_car_info;
+
+ PMWrapper pmw;
+
+ // ID allocation and proxy methods for lookup
+ struct id_allocator id_alloc;
+ // Surface are info (x, y, w, h)
+ rect_map area_info;
+ // FOR CES DEMO
+ std::unordered_map<unsigned, struct TmpClient> tmp_surface2app;
+ std::vector<struct TmpService> tmp_services;
+ static const char* kDefaultOldRolesConfig;
+};
+
+} // namespace wm
+
+#endif // WINDOW_MANAGER_HPP