Add API which can get information about the car state

getCarInfo() can get the car state informations as follows:
 - parking brake state        : true/false
 - accelerator pedal position : 0-127.5
 - car state                  : "stop"/"run"

The details are described in doc/ApplicationGuide.md
in project apps/agl-service-windowmanager-2017.

Change-Id: I2a4a06ceeedbd2d3b1188a7fb442e1272e46897b
Signed-off-by: Yuta Doi <yuta-d@witz-inc.co.jp>

1 files changed, 35 insertions, 0 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 1db33a4..99ad323 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -452,6 +452,40 @@ void windowmanager_getareainfo_thunk(afb_req req) noexcept {
 
 }
 
+void windowmanager_getcarinfo_thunk(afb_req req) noexcept {
+   std::lock_guard<std::mutex> guard(binding_m);
+   #ifdef ST
+   ST();
+   #endif
+   if (g_afb_instance == nullptr) {
+      afb_req_fail(req, "failed", "Binding not initialized, did the compositor die?");
+      return;
+   }
+
+   try {
+   json_object *jreq = afb_req_json(req);
+
+   json_object *j_label = nullptr;
+   if (! json_object_object_get_ex(jreq, "label", &j_label)) {
+      afb_req_fail(req, "failed", "Need char const* argument label");
+      return;
+   }
+   char const* a_label = json_object_get_string(j_label);
+
+   auto ret = g_afb_instance->app.api_get_car_info(a_label);
+   if (ret.is_err()) {
+      afb_req_fail(req, "failed", ret.unwrap_err());
+      return;
+   }
+
+   afb_req_success(req, ret.unwrap(), "success");
+   } catch (std::exception &e) {
+      afb_req_fail_f(req, "failed", "Uncaught exception while calling getcarinfo: %s", e.what());
+      return;
+   }
+
+}
+
 void windowmanager_wm_subscribe(afb_req req) noexcept {
    std::lock_guard<std::mutex> guard(binding_m);
    #ifdef ST
@@ -650,6 +684,7 @@ const struct afb_verb_v2 windowmanager_verbs[] = {
    { "getdisplayinfo", windowmanager_getdisplayinfo_thunk, nullptr, nullptr, AFB_SESSION_NONE },
    { "getareainfo", windowmanager_getareainfo_thunk, nullptr, nullptr, AFB_SESSION_NONE },
    { "wm_subscribe", windowmanager_wm_subscribe, nullptr, nullptr, AFB_SESSION_NONE },
+   { "getcarinfo", windowmanager_getcarinfo_thunk, nullptr, nullptr, AFB_SESSION_NONE },
    { "list_drawing_names", windowmanager_list_drawing_names, nullptr, nullptr, AFB_SESSION_NONE },
    { "ping", windowmanager_ping, nullptr, nullptr, AFB_SESSION_NONE },
    { "debug_status", windowmanager_debug_status, nullptr, nullptr, AFB_SESSION_NONE },