Remove unnecessary code
[apps/agl-service-windowmanager.git] / src / policy_manager / policy_manager.cpp
index a91d98e..0f7dc27 100644 (file)
@@ -20,6 +20,7 @@
 #include <istream>
 #include <thread>
 #include <map>
+#include <queue>
 #include <systemd/sd-event.h>
 #include <json-c/json.h>
 #include "policy_manager.hpp"
@@ -33,9 +34,41 @@ extern "C" {
 
 
 namespace pm {
+typedef struct AreaState {
+    std::string name;
+    std::string category;
+    std::string role;
+} AreaState;
+
+typedef std::vector<AreaState> AreaList;
+typedef struct LayoutState {
+    std::string name;
+    std::map<std::string, int> category_num;
+    AreaList area_list;
+    std::map<std::string, std::vector<std::string>> role_history;
+} LayoutState;
+
+typedef struct LayerState {
+    std::string name;
+    LayoutState layout_state;
+} LayerState;
+
+typedef struct EventInfo {
+    int event;
+    std::string role;
+    uint64_t delay;
+} EventInfo;
+
 struct sd_event* event_loop;
 std::map<int, struct sd_event_source*> event_source_list;
+std::map<int, std::string> g_req_role_list;
 PolicyManager::CallbackTable callback;
+std::queue<EventInfo> g_event_info_queue;
+
+std::unordered_map<std::string, LayerState> g_prv_layers;
+std::unordered_map<std::string, LayerState> g_crr_layers;
+std::unordered_map<std::string, LayerState> g_prv_layers_car_stop;
+std::unordered_map<std::string, LayoutState> g_default_layouts;
 }  // namespace pm
 
 
@@ -56,17 +89,17 @@ int PolicyManager::initialize() {
     int ret = 0;
 
     // Create convert map
-    for (unsigned int i=0; i<STM_NUM_EVT; i++) {
+    for (int i = stm::gStmEventNoMin; i <= stm::gStmEventNoMax; i++) {
         HMI_DEBUG("wm:pm", "event name:%s no:%d", stm::gStmEventName[i], stm::gStmEventNo[i]);
         this->eventname2no_[stm::gStmEventName[i]] = stm::gStmEventNo[i];
     }
 
-    for (unsigned int i=0; i<STM_NUM_CTG; i++) {
+    for (int i = stm::gStmCategoryNoMin; i <= stm::gStmCategoryNoMax; i++) {
         HMI_DEBUG("wm:pm", "category name:%s no:%d", stm::gStmCategoryName[i], stm::gStmCategoryNo[i]);
         this->categoryname2no_[stm::gStmCategoryName[i]] = stm::gStmCategoryNo[i];
     }
 
-    for (unsigned int i=0; i<STM_NUM_ARA; i++) {
+    for (int i = stm::gStmAreaNoMin; i <= stm::gStmAreaNoMax; i++) {
         HMI_DEBUG("wm:pm", "area name:%s no:%d", stm::gStmAreaName[i], stm::gStmAreaNo[i]);
         this->areaname2no_[stm::gStmAreaName[i]] = stm::gStmAreaNo[i];
     }
@@ -78,6 +111,29 @@ int PolicyManager::initialize() {
         return ret;
     }
 
+    // Load layout.db
+    ret = this->loadLayoutDb();
+    if (0 > ret) {
+        HMI_ERROR("wm:pm", "Load layout.db Error!!");
+        return ret;
+    }
+
+    // Initialize current/previous state of layers
+    pm::AreaState init_area;
+    pm::LayoutState init_layout;
+    init_area.name     = "none";
+    init_area.category = "none";
+    init_area.role     = "none";
+    init_layout.area_list.push_back(init_area);
+
+    for (int i = stm::gStmLayerNoMin; i <= stm::gStmLayerNoMax; i++) {
+        const char* layer_name = stm::gStmLayerName[i];
+        pm::g_crr_layers[layer_name].name          = layer_name;
+        pm::g_crr_layers[layer_name].layout_state  = init_layout;
+    }
+
+    pm::g_prv_layers = pm::g_crr_layers;
+
     // Initialize StateTransitioner
     stm::stmInitialize();
 
@@ -126,25 +182,46 @@ static void addStateToJson(
     json_object_object_add(*json_out, key, json_obj);
 }
 
-static int checkPolicyEntry(int event, uint64_t delay_ms);
+static void addStateToJson(const char* layer_name, unsigned int changed,
+                          pm::AreaList area_list, json_object** json_out) {
+    if ((nullptr == layer_name) || (1 < changed) || (nullptr == json_out)) {
+        HMI_ERROR("wm:pm", "Invalid argument!!!");
+        return;
+    }
+
+    json_object* json_areas = json_object_new_array();
+    json_object* json_tmp;
+    for (pm::AreaState as : area_list) {
+        json_tmp = json_object_new_object();
+        json_object_object_add(json_tmp, "name", json_object_new_string(as.name.c_str()));
+        json_object_object_add(json_tmp, "role", json_object_new_string(as.role.c_str()));
+       json_object_array_add(json_areas, json_tmp);
+    }
+
+    json_object_object_add(*json_out, "name", json_object_new_string(layer_name));
+    json_object_object_add(*json_out, "changed", json_object_new_boolean(changed));
+    json_object_object_add(*json_out, "areas", json_areas);
+}
+
+static int checkPolicyEntry(int event, uint64_t delay_ms, std::string role);
 static int checkPolicy(sd_event_source *source, void *data) {
     HMI_DEBUG("wm:pm", "Call");
     HMI_DEBUG("wm:pm", ">>>>>>>>>> START CHECK POLICY");
 
-    int event = *((int*)data);
+    int event_data = *((int*)data);
 
     int event_no, category_no, area_no;
-    event_no    = event & STM_MSK_EVT_NO;
-    category_no = event & STM_MSK_CTG_NO;
-    area_no     = event & STM_MSK_ARA_NO;
+    event_no    = (event_data & STM_MSK_EVT_NO) - 1;
+    category_no = ((event_data & STM_MSK_CTG_NO) >> 8) - 1;
+    area_no     = ((event_data & STM_MSK_ARA_NO) >> 16) - 1;
     HMI_DEBUG("wm:pm", ">>>>>>>>>> event:%s category:%s area:%s",
-              stm::gStmEventName[event_no - 1],
-              stm::gStmCategoryName[(category_no >> 8) - 1],
-              stm::gStmAreaName[(area_no >> 16) - 1]);
+              stm::gStmEventName[event_no],
+              stm::gStmCategoryName[category_no],
+              stm::gStmAreaName[area_no]);
 
     // Transition state
     stm::stm_state_t crr_state;
-    int ret = stm::stmTransitionState(event, &crr_state);
+    int ret = stm::stmTransitionState(event_data, &crr_state);
     if (0 > ret) {
         HMI_ERROR("wm:pm", "Error!!");
         return -1;
@@ -175,21 +252,231 @@ static int checkPolicy(sd_event_source *source, void *data) {
               crr_state.restriction_mode.state,
               stm::gStmRestrictionModeStateNo2Name[crr_state.restriction_mode.state]);
     HMI_DEBUG("wm:pm", "homescreen state        (is_changed:%d state:%d:%s)",
-              crr_state.layer.homescreen.is_changed,
-              crr_state.layer.homescreen.state,
-              stm::gStmLayoutNo2Name[crr_state.layer.homescreen.state]);
+              crr_state.layer[stm::gStmLayerNoHomescreen].is_changed,
+              crr_state.layer[stm::gStmLayerNoHomescreen].state,
+              stm::gStmLayoutNo2Name[crr_state.layer[stm::gStmLayerNoHomescreen].state]);
     HMI_DEBUG("wm:pm", "apps state              (is_changed:%d state:%d:%s)",
-              crr_state.layer.apps.is_changed,
-              crr_state.layer.apps.state,
-              stm::gStmLayoutNo2Name[crr_state.layer.apps.state]);
+              crr_state.layer[stm::gStmLayerNoApps].is_changed,
+              crr_state.layer[stm::gStmLayerNoApps].state,
+              stm::gStmLayoutNo2Name[crr_state.layer[stm::gStmLayerNoApps].state]);
     HMI_DEBUG("wm:pm", "restriction state       (is_changed:%d state:%d:%s)",
-              crr_state.layer.restriction.is_changed,
-              crr_state.layer.restriction.state,
-              stm::gStmLayoutNo2Name[crr_state.layer.restriction.state]);
+              crr_state.layer[stm::gStmLayerNoRestriction].is_changed,
+              crr_state.layer[stm::gStmLayerNoRestriction].state,
+              stm::gStmLayoutNo2Name[crr_state.layer[stm::gStmLayerNoRestriction].state]);
     HMI_DEBUG("wm:pm", "on_screen state         (is_changed:%d state:%d:%s)",
-              crr_state.layer.on_screen.is_changed,
-              crr_state.layer.on_screen.state,
-              stm::gStmLayoutNo2Name[crr_state.layer.on_screen.state]);
+              crr_state.layer[stm::gStmLayerNoOnScreen].is_changed,
+              crr_state.layer[stm::gStmLayerNoOnScreen].state,
+              stm::gStmLayoutNo2Name[crr_state.layer[stm::gStmLayerNoOnScreen].state]);
+
+    // Store previous layers
+    pm::g_prv_layers = pm::g_crr_layers;
+
+    std::string req_role = pm::g_req_role_list[event_data];
+    std::string req_evt = std::string(stm::gStmEventName[event_no]);
+    std::string req_ctg = std::string(stm::gStmCategoryName[category_no]);
+    std::string req_area = std::string(stm::gStmAreaName[area_no]);
+    HMI_DEBUG("wm:pm", "REQ: event:%s role%s category:%s area:%s",
+        req_evt.c_str(), req_role.c_str(), req_ctg.c_str(), req_area.c_str());
+
+    // Update layers
+    for (int layer_no = stm::gStmLayerNoMin;
+         layer_no <= stm::gStmLayerNoMax; layer_no++) {
+        const char* layer_name = stm::gStmLayerName[layer_no];
+        HMI_DEBUG("wm:pm", "LAYER:%s", layer_name);
+
+#if 1
+        // If restriction mode is changed off -> on,
+        // store current state for state of restriction mode off
+        if ((crr_state.restriction_mode.is_changed)
+            && (stm::gStmRestrictionModeStateNoOn == crr_state.restriction_mode.state)) {
+            HMI_DEBUG("wm:lm", "Store current state for state of restriction mode off");
+            pm::g_prv_layers_car_stop[layer_name] = pm::g_crr_layers[layer_name];
+        }
+#else
+        // If car state is changed car_stop -> car_run,
+        // store current state for state of car stop
+        if ((crr_state.car.is_changed)
+            && (stm::gStmCarStateNoRun == crr_state.car.state)) {
+            HMI_DEBUG("wm:lm", "Store current state for state of car stop");
+            pm::g_prv_layers_car_stop[layer_name] = pm::g_crr_layers[layer_name];
+        }
+#endif
+
+
+        // This layer is changed?
+        if (crr_state.layer[layer_no].is_changed) {
+            // Get previous layout name of this layer
+            pm::LayoutState prv_layout_state =  pm::g_prv_layers[layer_name].layout_state;
+            std::string prv_layout_name = prv_layout_state.name;
+
+            // Get current layout name of this layer
+            int crr_layout_state_no =  crr_state.layer[layer_no].state;
+            std::string crr_layout_name = std::string(stm::gStmLayoutNo2Name[crr_layout_state_no]);
+
+            pm::LayoutState crr_layout_state;
+#if 1
+            if ((crr_state.restriction_mode.is_changed)
+                && (stm::gStmRestrictionModeStateNoOff == crr_state.restriction_mode.state)) {
+                // If restriction mode is changed on -> off,
+                // restore state of restriction mode off
+                HMI_DEBUG("wm:lm", "Restriction mode is changed on -> off, so restore state of restriction mode off");
+                crr_layout_state = pm::g_prv_layers_car_stop[layer_name].layout_state;
+#else
+            if ((crr_state.car.is_changed)
+                && (stm::gStmCarStateNoStop == crr_state.car.state)) {
+                // If car state is changed car_run -> car_stop,
+                // restore state of car stop
+                HMI_DEBUG("wm:lm", "Car state is changed car_run -> car_stop, so restore state of car stop");
+                crr_layout_state = pm::g_prv_layers_car_stop[layer_name].layout_state;
+#endif
+            }
+            else {
+                // Copy previous layout state for current
+                crr_layout_state = prv_layout_state;
+
+                if (prv_layout_name == crr_layout_name) {
+                    HMI_DEBUG("wm:lm", "Previous layout is same with current");
+                }
+                else {
+                    // If previous layout is NOT same with current,
+                    // current areas is set with default value
+                    HMI_DEBUG("wm:lm", "Previous layout is NOT same with current");
+                    crr_layout_state.name         = pm::g_default_layouts[crr_layout_name].name;
+                    crr_layout_state.category_num = pm::g_default_layouts[crr_layout_name].category_num;
+                    crr_layout_state.area_list    = pm::g_default_layouts[crr_layout_name].area_list;
+                }
+
+                // Create candidate list
+                std::map<std::string, pm::AreaList> cand_list;
+                for (int ctg_no=stm::gStmCategoryNoMin;
+                     ctg_no<=stm::gStmCategoryNoMax; ctg_no++) {
+                    const char* ctg = stm::gStmCategoryName[ctg_no];
+                    HMI_DEBUG("wm:pm", "ctg:%s", ctg);
+
+                    // Create candidate list for category from the previous displayed categories
+                    pm::AreaList tmp_cand_list;
+                    for (pm::AreaState area_state : prv_layout_state.area_list) {
+                        if (std::string(ctg) == area_state.category) {
+                            // If there is the category which is same with new category in previous layout,
+                            // push it to list
+                            HMI_DEBUG("wm:pm", "Push to candidate list category:%s role:%s",
+                                      area_state.category.c_str(), area_state.role.c_str());
+                            tmp_cand_list.push_back(area_state);
+                        }
+                    }
+
+                    int candidate_num = prv_layout_state.category_num[ctg];
+                    int blank_num = crr_layout_state.category_num[ctg];
+                    HMI_DEBUG("wm:pm", "blank_num:%d candidate_num:%d", blank_num, candidate_num);
+
+                    // If requested event is "activate"
+                    // and there are requested category and area,
+                    // update area with requested role in current layout.
+                    bool request_for_this_layer = false;
+                    bool updated = false;
+                    if ((ctg == req_ctg) && ("activate" == req_evt) ) {
+                        HMI_DEBUG("wm:pm", "requested event is activate");
+                        for (pm::AreaState &as : crr_layout_state.area_list) {
+                            if (as.category == req_ctg) {
+                                request_for_this_layer = true;
+
+                                if (as.name == req_area) {
+                                    HMI_DEBUG("wm:pm", "Update current layout: area:%s category:%s role:%s",
+                                              as.name.c_str(), as.category.c_str(), as.role.c_str());
+                                    as.role = req_role;
+                                    blank_num--;
+                                    updated = true;
+                                    break;
+                                }
+                            }
+                        }
+
+                        // If NOT updated: there is not requested area in new layout, 
+                        // so push requested role to candidate list
+                        if (request_for_this_layer && (!updated)) {
+                            HMI_DEBUG("wm:pm", "Push request to candidate list");
+                            pm::AreaState area_state;
+                            area_state.name = req_area;
+                            area_state.category = req_ctg;
+                            area_state.role = req_role;
+                            tmp_cand_list.push_back(area_state);
+                        }
+                    }
+
+                    // Compare number of candidate/blank,
+                    // And remove role in order of the oldest as necessary
+                    if (candidate_num < blank_num) {
+                        // Refer history stack
+                        // and add to the top of tmp_cand_list in order to the newest
+                        while (candidate_num != blank_num) {
+                            pm::AreaState area_state;
+                            area_state.name = "";
+                            area_state.category = ctg;
+                            if (0 != crr_layout_state.role_history[ctg].size()) {
+                                HMI_ERROR("wm:pm", "Use role in history stack:%s",
+                                          crr_layout_state.role_history[ctg].back().c_str());
+                                area_state.role = crr_layout_state.role_history[ctg].back();
+                                crr_layout_state.role_history[ctg].pop_back();
+                            }
+                            else {
+                                HMI_ERROR("wm:pm", "There is no role in history stack!!");
+                                area_state.role = "";
+                            }
+                            tmp_cand_list.push_back(area_state);
+                            candidate_num++;
+                        }
+                    }
+                    else if (candidate_num > blank_num) {
+                        HMI_DEBUG("wm:pm", "candidate_num > blank_num");
+
+                        // Remove the oldest role from candidate list
+                        while (candidate_num != blank_num) {
+                            std::string removed_role = tmp_cand_list.begin()->role;
+                            HMI_DEBUG("wm:pm", "Remove the oldest data(role:%s) from tmp_cand_list",
+                                      removed_role.c_str());
+                            tmp_cand_list.erase(tmp_cand_list.begin());
+                            candidate_num--;
+
+                            // Push removed data to history stack
+                            crr_layout_state.role_history[ctg].push_back(removed_role);
+                        }
+                    }
+                    else {  // (candidate_num == blank_num)
+                        // nop
+                    }
+
+                    cand_list[ctg] = tmp_cand_list;
+                }
+
+                // Update areas
+                for (pm::AreaState &as : crr_layout_state.area_list) {
+                    HMI_DEBUG("wm:pm", "Current area info area:%s category:%s",
+                              as.name.c_str(), as.category.c_str());
+                    if ("" == as.role) {
+                        HMI_DEBUG("wm:pm", "Update this area with role:%s",
+                                  cand_list[as.category].begin()->role.c_str());
+                        as.role = cand_list[as.category].begin()->role;
+                        cand_list[as.category].erase(cand_list[as.category].begin());
+                    }
+                }
+            }
+            // Update current layout of this layer
+            pm::g_crr_layers[layer_name].layout_state = crr_layout_state;
+        }
+    }
+
+    // Check
+    for (auto itr : pm::g_crr_layers) {
+        pm::LayerState ls = itr.second;
+        HMI_DEBUG("wm:pm", ">>> LAYER:%s",ls.name.c_str());
+        HMI_DEBUG("wm:pm", ">>> >>> LAYOUT:%s", ls.layout_state.name.c_str());
+
+        for (pm::AreaState as : ls.layout_state.area_list) {
+            HMI_DEBUG("wm:pm", ">>> >>> >>> AREA:%s", as.name.c_str());
+            HMI_DEBUG("wm:pm", ">>> >>> >>> >>> CTG:%s", as.category.c_str());
+            HMI_DEBUG("wm:pm", ">>> >>> >>> >>> ROLE:%s", as.role.c_str());
+        }
+    }
 
     json_object* json_out = json_object_new_object();
 
@@ -249,63 +536,36 @@ static int checkPolicy(sd_event_source *source, void *data) {
                    stm::gStmRestrictionModeStateNo2Name[crr_state.restriction_mode.state],
                    &json_out);
 
+    // Create layout information
+    //
     //     "layers": [
+    //     {
+    //         "homescreen": {
+    //             "changed": <bool>,
+    //             "areas": [
+    //             {
+    //                 "name":<const char*>,
+    //                 "role":<const char*>
+    //             }.
+    //             ...
+    //             ]
+    //         }
+    //     },
+    //     ...
     json_object* json_layer = json_object_new_array();
     json_object* json_tmp;
-
-    //         {
-    //             "homescreen": {
-    //                 "is_changed": <bool>,
-    //                 "state": <const char*>
-    //             }
-    //         },
-    //     ]
-    // }
-    json_tmp = json_object_new_object();
-    addStateToJson("homescreen",
-                   crr_state.layer.homescreen.is_changed,
-                   stm::gStmLayoutNo2Name[crr_state.layer.homescreen.state],
-                   &json_tmp);
-    json_object_array_add(json_layer, json_tmp);
-
-    //         {
-    //             "apps": {
-    //                 "is_changed": <bool>,
-    //                 "state": <const char*>
-    //             }
-    //         },
-    json_tmp = json_object_new_object();
-    addStateToJson("apps",
-                   crr_state.layer.apps.is_changed,
-                   stm::gStmLayoutNo2Name[crr_state.layer.apps.state],
-                   &json_tmp);
-    json_object_array_add(json_layer, json_tmp);
-
-    //         {
-    //             "restriction": {
-    //                 "is_changed": <bool>,
-    //                 "state": <const char*>
-    //             }
-    //         },
-    json_tmp = json_object_new_object();
-    addStateToJson("restriction",
-                   crr_state.layer.restriction.is_changed,
-                   stm::gStmLayoutNo2Name[crr_state.layer.restriction.state],
-                   &json_tmp);
-    json_object_array_add(json_layer, json_tmp);
-
-    //         {
-    //             "on_screen": {
-    //                 "is_changed": <bool>,
-    //                 "state": <const char*>
-    //             }
-    //         },
-    json_tmp = json_object_new_object();
-    addStateToJson("on_screen",
-                   crr_state.layer.on_screen.is_changed,
-                   stm::gStmLayoutNo2Name[crr_state.layer.on_screen.state],
-                   &json_tmp);
-    json_object_array_add(json_layer, json_tmp);
+    for (int layer_no = stm::gStmLayerNoMin;
+         layer_no <= stm::gStmLayerNoMax; layer_no++) {
+        const char* layer_name = stm::gStmLayerName[layer_no];
+        HMI_DEBUG("wm:pm", "LAYER:%s", layer_name);
+
+        json_tmp = json_object_new_object();
+        addStateToJson(layer_name,
+                       crr_state.layer[layer_no].is_changed,
+                       pm::g_crr_layers[layer_name].layout_state.area_list,
+                       &json_tmp);
+        json_object_array_add(json_layer, json_tmp);
+    }
 
     // Add json array of layer
     json_object_object_add(json_out, "layers", json_layer);
@@ -318,11 +578,11 @@ static int checkPolicy(sd_event_source *source, void *data) {
     if (crr_state.car.is_changed) {
         if (stm::gStmCarStateNoRun == crr_state.car.state) {
             // Set delay event(restriction mode on)
-            checkPolicyEntry(STM_EVT_NO_RESTRICTION_MODE_ON, 3000);
+            checkPolicyEntry(STM_EVT_NO_RESTRICTION_MODE_ON, 3000, "");
         }
         else if (stm::gStmCarStateNoStop == crr_state.car.state) {
             // Set event(restriction mode off)
-            checkPolicyEntry(STM_EVT_NO_RESTRICTION_MODE_OFF, 0);
+            checkPolicyEntry(STM_EVT_NO_RESTRICTION_MODE_OFF, 0, "");
 
             // Stop timer for restriction on event
             if (pm::event_source_list.find(STM_EVT_NO_RESTRICTION_MODE_ON)
@@ -348,8 +608,8 @@ static int checkPolicy(sd_event_source *source, void *data) {
     sd_event_source_unref(source);
 
     // Remove event source from list
-    if (pm::event_source_list.find(event) != pm::event_source_list.end()) {
-        pm::event_source_list.erase(event);
+    if (pm::event_source_list.find(event_data) != pm::event_source_list.end()) {
+        pm::event_source_list.erase(event_data);
     }
 
     HMI_DEBUG("wm:pm", ">>>>>>>>>> FINISH CHECK POLICY");
@@ -357,19 +617,26 @@ static int checkPolicy(sd_event_source *source, void *data) {
 }
 
 static int timerEvent(sd_event_source *source, uint64_t usec, void *data) {
-    checkPolicy(source, data);
-};
+    HMI_DEBUG("wm:pm", "Call");
 
-static int checkPolicyEntry(int event, uint64_t delay_ms)
+    int ret = checkPolicy(source, data);
+    return ret;
+}
+
+static int checkPolicyEntry(int event, uint64_t delay_ms, std::string role)
 {
     HMI_DEBUG("wm:pm", "Call");
-    HMI_DEBUG("wm:pm", "event:0x%x", event);
+    HMI_DEBUG("wm:pm", "event:0x%x delay:%d role:%s", event, delay_ms, role.c_str());
+
+    // Store requested role
+    pm::g_req_role_list[event] = role;
 
     if (0 == delay_ms) {
         int ret = sd_event_add_defer(pm::event_loop, NULL,
                                      &checkPolicy, new int(event));
         if (0 > ret) {
             HMI_ERROR("wm:pm", "Faild to sd_event_add_defer: errno:%d", ret);
+            pm::g_req_role_list.erase(event);
             return -1;
         }
     }
@@ -389,6 +656,7 @@ static int checkPolicyEntry(int event, uint64_t delay_ms)
                                     &timerEvent, new int(event));
         if (0 > ret) {
             HMI_ERROR("wm:pm", "Faild to sd_event_add_time: errno:%d", ret);
+            pm::g_req_role_list.erase(event);
             return -1;
         }
 
@@ -400,11 +668,13 @@ static int checkPolicyEntry(int event, uint64_t delay_ms)
 }
 
 void PolicyManager::registerCallback(CallbackTable callback) {
+    HMI_DEBUG("wm:pm", "Call");
+
     pm::callback.onStateTransitioned = callback.onStateTransitioned;
     pm::callback.onError             = callback.onError;
 }
 
-int PolicyManager::inputEvent(json_object* json_in) {
+int PolicyManager::setInputEventData(json_object* json_in) {
     HMI_DEBUG("wm:pm", "Call");
 
     // Check arguments
@@ -450,14 +720,45 @@ int PolicyManager::inputEvent(json_object* json_in) {
         HMI_DEBUG("wm:pm", "area(%s:%d)", area, area_no);
     }
 
-    // Check policy
-    checkPolicyEntry((event_no | category_no | area_no), 0);
+    // Set event info to the queue
+    pm::EventInfo event_info;
+    event_info.event = (event_no | category_no | area_no);
+    if (nullptr == role) {
+        event_info.role = std::string("");
+    }
+    else {
+        event_info.role = std::string(role);
+    }
+    event_info.delay = 0;
+    pm::g_event_info_queue.push(event_info);
 
     return 0;
 }
 
-std::string PolicyManager::roleToCategory(const char* role) {
-    return this->role2category_[role];
+int PolicyManager::executeStateTransition() {
+    HMI_DEBUG("wm:pm", "Call");
+
+    int ret;
+    pm::EventInfo event_info;
+
+    while (!pm::g_event_info_queue.empty()) {
+        // Get event info from queue and delete
+        event_info = pm::g_event_info_queue.front();
+        pm::g_event_info_queue.pop();
+
+        // Set event info for checking policy
+        ret = checkPolicyEntry(event_info.event, event_info.delay, event_info.role);
+    }
+    return ret;
+}
+
+void PolicyManager::undoState() {
+    HMI_DEBUG("wm:pm", "Call");
+
+    // Undo state of STM
+    stm::stmUndoState();
+
+    pm::g_crr_layers = pm::g_prv_layers;
 }
 
 extern const char* kDefaultRoleDb;
@@ -552,6 +853,142 @@ int PolicyManager::loadRoleDb() {
     return 0;
 }
 
+extern const char* kDefaultLayoutDb;
+int PolicyManager::loadLayoutDb() {
+    HMI_DEBUG("wm:lm", "Call");
+
+    // Get afm application installed dir
+    char const *afm_app_install_dir = getenv("AFM_APP_INSTALL_DIR");
+    HMI_DEBUG("wm:pm", "afm_app_install_dir:%s", afm_app_install_dir);
+
+    std::string file_name;
+    if (!afm_app_install_dir) {
+        HMI_ERROR("wm:pm", "AFM_APP_INSTALL_DIR is not defined");
+    }
+    else {
+        file_name = std::string(afm_app_install_dir) + std::string("/etc/layout.db");
+    }
+
+    // Load layout.db
+    json_object* json_obj;
+    int ret = this->inputJsonFilie(file_name.c_str(), &json_obj);
+    if (0 > ret) {
+        HMI_DEBUG("wm:pm", "Could not open layout.db, so use default layout information");
+        json_obj = json_tokener_parse(kDefaultLayoutDb);
+    }
+    HMI_DEBUG("wm:pm", "json_obj dump:%s", json_object_get_string(json_obj));
+
+    // Perse layouts
+    HMI_DEBUG("wm:pm", "Perse layouts");
+    json_object* json_cfg;
+    if (!json_object_object_get_ex(json_obj, "layouts", &json_cfg)) {
+        HMI_ERROR("wm:pm", "Parse Error!!");
+        return -1;
+    }
+
+    int len = json_object_array_length(json_cfg);
+    HMI_DEBUG("wm:pm", "json_cfg len:%d", len);
+    HMI_DEBUG("wm:pm", "json_cfg dump:%s", json_object_get_string(json_cfg));
+
+    const char* layout;
+    const char* role;
+    const char* category;
+    for (int i=0; i<len; i++) {
+        json_object* json_tmp = json_object_array_get_idx(json_cfg, i);
+
+        layout = this->getStringFromJson(json_tmp, "name");
+        if (nullptr == layout) {
+            HMI_ERROR("wm:pm", "Parse Error!!");
+            return -1;
+        }
+        HMI_DEBUG("wm:pm", "> layout:%s", layout);
+
+        json_object* json_area_array;
+        if (!json_object_object_get_ex(json_tmp, "areas", &json_area_array)) {
+          HMI_ERROR("wm:pm", "Parse Error!!");
+          return -1;
+        }
+
+        int len_area = json_object_array_length(json_area_array);
+        HMI_DEBUG("wm:pm", "json_area_array len:%d", len_area);
+        HMI_DEBUG("wm:pm", "json_area_array dump:%s", json_object_get_string(json_area_array));
+
+        pm::LayoutState layout_state;
+        pm::AreaState area_state;
+        std::map<std::string, int> category_num;
+        for (int ctg_no = stm::gStmCategoryNoMin;
+             ctg_no <= stm::gStmCategoryNoMax; ctg_no++) {
+            const char* ctg_name = stm::gStmCategoryName[ctg_no];
+            category_num[ctg_name] = 0;
+        }
+
+        for (int j=0; j<len_area; j++) {
+            json_object* json_area = json_object_array_get_idx(json_area_array, j);
+
+            // Get area name
+            const char* area = this->getStringFromJson(json_area, "name");
+            if (nullptr == area) {
+              HMI_ERROR("wm:pm", "Parse Error!!");
+              return -1;
+            }
+            area_state.name = std::string(area);
+            HMI_DEBUG("wm:pm", ">> area:%s", area);
+
+            // Get app attribute of the area
+            category = this->getStringFromJson(json_area, "category");
+            if (nullptr == category) {
+                HMI_ERROR("wm:pm", "Parse Error!!");
+                return -1;
+            }
+            area_state.category = std::string(category);
+            category_num[category]++;
+            HMI_DEBUG("wm:pm", ">>> category:%s", category);
+
+            role = this->getStringFromJson(json_area, "role");
+            if (nullptr != role) {
+                // Role is NOT essential here
+                area_state.role = std::string(role);
+            }
+            else {
+                area_state.role = std::string("");
+
+            }
+            HMI_DEBUG("wm:pm", ">>> role:%s", role);
+
+            layout_state.area_list.push_back(area_state);
+
+        }
+
+        layout_state.name = layout;
+        layout_state.category_num = category_num;
+        pm::g_default_layouts[layout] = layout_state;
+    }
+
+    // initialize for none layout
+    pm::LayoutState none_layout_state;
+    memset(&none_layout_state, 0, sizeof(none_layout_state));
+    none_layout_state.name                 = "none";
+    pm::g_default_layouts["none"] = none_layout_state;
+
+    // Check
+    for(auto itr_layout = pm::g_default_layouts.begin();
+      itr_layout != pm::g_default_layouts.end(); ++itr_layout) {
+        HMI_DEBUG("wm:pm", ">>> layout:%s", itr_layout->first.c_str());
+
+        for (auto itr_area = itr_layout->second.area_list.begin();
+          itr_area != itr_layout->second.area_list.end(); ++itr_area) {
+            HMI_DEBUG("wm:pm", ">>> >>> area    :%s", itr_area->name.c_str());
+            HMI_DEBUG("wm:pm", ">>> >>> category:%s", itr_area->category.c_str());
+            HMI_DEBUG("wm:pm", ">>> >>> role    :%s", itr_area->role.c_str());
+        }
+    }
+
+    // Release json_object
+    json_object_put(json_obj);
+
+    return 0;
+}
+
 // TODO:
 // This function will be removed because json_helper has same function.
 // json_helper should be library.
@@ -692,3 +1129,163 @@ const char* kDefaultRoleDb = "{ \
     } \
     ] \
 }";
+
+
+const char* kDefaultLayoutDb = "{ \
+    \"layouts\": [ \
+        { \
+            \"name\": \"pu\", \
+            \"layer\": \"on_screen\", \
+            \"areas\": [ \
+                { \
+                    \"name\": \"pop_up\", \
+                    \"role\": \"incomming_call\" \
+                } \
+            ] \
+        }, \
+        { \
+            \"name\": \"sa\", \
+            \"layer\": \"on_screen\", \
+            \"areas\": [ \
+                { \
+                    \"name\": \"system_alert\", \
+                    \"role\": \"system_alert\" \
+                } \
+            ] \
+        }, \
+        { \
+            \"name\": \"m1\", \
+            \"layer\": \"apps\", \
+            \"areas\": [ \
+                { \
+                    \"name\": \"normal\", \
+                    \"role\": \"map\" \
+                } \
+            ] \
+        }, \
+        { \
+            \"name\": \"m2\", \
+            \"layer\": \"apps\", \
+            \"areas\": [ \
+                { \
+                    \"name\": \"split.main\", \
+                    \"role\": \"map\" \
+                }, \
+                { \
+                    \"name\": \"split.sub\", \
+                    \"category\": \"hvac\" \
+                } \
+            ] \
+        }, \
+        { \
+            \"name\": \"mf\", \
+            \"layer\": \"apps\", \
+            \"areas\": [ \
+                { \
+                    \"name\": \"full\", \
+                    \"role\": \"map\" \
+                } \
+            ] \
+        }, \
+        { \
+            \"name\": \"s1\", \
+            \"layer\": \"apps\", \
+            \"areas\": [ \
+                { \
+                    \"name\": \"normal\", \
+                    \"category\": \"splitable\" \
+                } \
+            ] \
+        }, \
+        { \
+            \"name\": \"s2\", \
+            \"layer\": \"apps\", \
+            \"areas\": [ \
+                { \
+                    \"name\": \"split.main\", \
+                    \"category\": \"splitable\" \
+                }, \
+                { \
+                    \"name\": \"split.sub\", \
+                    \"category\": \"splitable\" \
+                } \
+            ] \
+        }, \
+        { \
+            \"name\": \"g\", \
+            \"layer\": \"apps\", \
+            \"areas\": [ \
+                { \
+                    \"name\": \"normal\", \
+                    \"category\": \"general\" \
+                } \
+            ] \
+        }, \
+        { \
+            \"name\": \"hs\", \
+            \"layer\": \"homescreen\", \
+            \"areas\": [ \
+                { \
+                    \"name\": \"full\", \
+                    \"role\": \"homescreen\" \
+                } \
+            ] \
+        } \
+    ], \
+    \"areas\": [ \
+        { \
+            \"name\": \"normal\", \
+            \"rect\": { \
+                \"x\": 0, \
+                \"y\": 218, \
+                \"w\": 1080, \
+                \"h\": 1488 \
+            } \
+        }, \
+        { \
+            \"name\": \"split.main\", \
+            \"rect\": { \
+                \"x\": 0, \
+                \"y\": 218, \
+                \"w\": 1080, \
+                \"h\": 744 \
+            } \
+        }, \
+        { \
+            \"name\": \"split.sub\", \
+            \"rect\": { \
+                \"x\": 0, \
+                \"y\": 962, \
+                \"w\": 1080, \
+                \"h\": 744 \
+            } \
+        }, \
+        { \
+            \"name\": \"full\", \
+            \"rect\": { \
+                \"x\": 0, \
+                \"y\": 0, \
+                \"w\": 1080, \
+                \"h\": 1920 \
+            } \
+        }, \
+        { \
+            \"name\": \"pop_up\", \
+            \"rect\": { \
+                \"x\": 0, \
+                \"y\": 640, \
+                \"w\": 1080, \
+                \"h\": 640 \
+            } \
+        }, \
+        { \
+            \"name\": \"system_alert\", \
+            \"rect\": { \
+                \"x\": 0, \
+                \"y\": 640, \
+                \"w\": 1080, \
+                \"h\": 640 \
+            } \
+        } \
+    ] \
+}";