Adopt error code and message into Window Manager

Change-Id: I942cc33350436bcdb477e7a5cda4a36e502044da
Signed-off-by: Kazumasa Mitsunari <knimitz@witz-inc.co.jp>

4 files changed, 49 insertions, 43 deletions

diff --git a/src/app.cpp b/src/app.cpp
index 9dfe21a..cedf70c 100644
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -142,7 +142,7 @@ void App::removeClient(const std::string &appid)
 
 bool App::subscribeEventForApp(const std::string &appid, afb_req req, const std::string &evname)
 {
-    if(!app_list.contains(appid)){
+    if(app_list.contains(appid) != WMError::SUCCESS){
         HMI_DEBUG("wm", "Client %s is not registered", appid.c_str());
         return false;
     }
@@ -455,21 +455,22 @@ void App::stop_timer()
     }
 }
 
-bool App::lm_release(const struct WMAction &action)
+WMError App::lm_release(const struct WMAction &action)
 {
     //auto const &surface_id = this->lookup_id(drawing_name);
+    WMError ret = WMError::LAYOUT_CHANGE_FAIL;
     unsigned req_num = app_list.currentSequenceNumber();
     auto const &surface_id = this->lookup_id(action.role.c_str());
     if (!surface_id)
     {
         HMI_SEQ_ERROR(req_num, "Surface does not exist");
-        return false;
+        return ret;
     }
 
     if (*surface_id == this->layers.main_surface)
     {
         HMI_SEQ_ERROR(req_num, "Cannot deactivate main_surface");
-        return false;
+        return ret;
     }
 
     auto o_state = *this->layers.get_layout_state(*surface_id);
@@ -477,7 +478,7 @@ bool App::lm_release(const struct WMAction &action)
     if (o_state == nullptr)
     {
         HMI_SEQ_ERROR(req_num, "Could not find layer for surface");
-        return false;
+        return ret;
     }
 
     struct LayoutState &state = *o_state;
@@ -485,7 +486,7 @@ bool App::lm_release(const struct WMAction &action)
     if (state.main == -1)
     {
         HMI_SEQ_ERROR(req_num, "No surface active");
-        return false;
+        return ret;
     }
 
     // Check against main_surface, main_surface_name is the configuration item.
@@ -493,12 +494,12 @@ bool App::lm_release(const struct WMAction &action)
     {
         HMI_SEQ_DEBUG(req_num, "Refusing to deactivate main_surface %d", *surface_id);
         //reply(nullptr);
-        return true;
+        return WMError::SUCCESS;
     }
     if ((state.main == *surface_id) && (state.sub == *surface_id))
     {
         HMI_SEQ_ERROR(req_num, "Surface is not active");
-        return false;
+        return ret;
     }
 
     if (state.main == *surface_id)
@@ -548,10 +549,10 @@ bool App::lm_release(const struct WMAction &action)
                 this->enqueue_flushdraw(state.main);
             });
     }
-    return true;
+    return WMError::SUCCESS;
 }
 
-bool App::lm_layout_change(const struct WMAction &action)
+WMError App::lm_layout_change(const struct WMAction &action)
 {
     const char *msg = this->check_surface_exist(action.role.c_str());
 
@@ -562,13 +563,13 @@ bool App::lm_layout_change(const struct WMAction &action)
     {
         HMI_SEQ_DEBUG(app_list.currentSequenceNumber(), msg);
         //app_list.removeRequest(req_num);
-        return false;
+        return WMError::LAYOUT_CHANGE_FAIL;
     }
     this->lm_layout_change(action.role.c_str());
-    return true;
+    return WMError::SUCCESS;
 }
 
-bool App::do_transition(unsigned req_num)
+WMError App::do_transition(unsigned req_num)
 {
     /*
     * Check Policy
@@ -597,10 +598,10 @@ bool App::do_transition(unsigned req_num)
     {
         is_activate = false;
     }
-    bool ret = app_list.setAction(req_num, trigger.appid, trigger.role, trigger.area, is_activate);
+    WMError ret = app_list.setAction(req_num, trigger.appid, trigger.role, trigger.area, is_activate);
     app_list.req_dump();
 
-    if (!ret)
+    if (ret != WMError::SUCCESS)
     {
         HMI_SEQ_ERROR(req_num, "Failed to set action");
         return ret;
@@ -621,9 +622,10 @@ bool App::do_transition(unsigned req_num)
         {
             sync_draw_happen = true;
             ret = lm_layout_change(y);
-            if (!ret)
+            if (ret != WMError::SUCCESS)
             {
-                HMI_SEQ_ERROR(req_num, "Failed layout change: %s", y.appid.c_str());
+                HMI_SEQ_ERROR(req_num, "%s: appid: %s, role: %s, area: %s",
+                    errorDescription(ret), y.appid.c_str(), y.role.c_str(), y.area.c_str());
                 app_list.removeRequest(req_num);
                 break;
                 // TODO: if transition fails, what should we do?
@@ -644,11 +646,11 @@ bool App::do_transition(unsigned req_num)
         }
     }
 
-    if (!ret)
+    if (ret != WMError::SUCCESS)
     {
         //this->emit_error(request_seq, 0 /*error_num*/, "error happens"); // test
     }
-    else if (ret && sync_draw_happen)
+    else if (sync_draw_happen)
     {
         this->set_timer();
     }
@@ -852,7 +854,7 @@ void App::api_activate_surface(char const *appid, char const *drawing_name, char
     std::string role = drawing_name;
     std::string area = drawing_area;
 
-    if (!app_list.contains(id))
+    if (app_list.contains(id) != WMError::SUCCESS)
     {
         reply("app doesn't request 'requestSurface' yet");
         return;
@@ -889,11 +891,11 @@ void App::api_activate_surface(char const *appid, char const *drawing_name, char
     /*
     * Do allocate tasks
     */
-    bool ret = this->do_transition(new_req);
+    WMError ret = this->do_transition(new_req);
 
-    if (!ret)
+    if (ret != WMError::SUCCESS)
     {
-        HMI_SEQ_ERROR(new_req, "failed to do_transition");
+        HMI_SEQ_ERROR(new_req, errorDescription(ret));
         //this->emit_error()
     }
 }
@@ -909,7 +911,7 @@ void App::api_deactivate_surface(char const *appid, char const *drawing_name, co
     std::string role = drawing_name;
     std::string area = ""; //drawing_area;
 
-    if (!app_list.contains(id))
+    if (app_list.contains(id) != WMError::SUCCESS)
     {
         reply("app doesn't request 'requestSurface' yet");
         return;
@@ -945,11 +947,11 @@ void App::api_deactivate_surface(char const *appid, char const *drawing_name, co
     /*
     * Do allocate tasks
     */
-    bool ret = this->do_transition(new_req);
+    WMError ret = this->do_transition(new_req);
 
-    if (!ret)
+    if (ret != WMError::SUCCESS)
     {
-        HMI_SEQ_ERROR(new_req, "failed to do_transition");
+        HMI_SEQ_ERROR(new_req, errorDescription(ret));
         //this->emit_error()
     }
 }
@@ -1018,7 +1020,10 @@ void App::process_request()
 {
     unsigned req = app_list.currentSequenceNumber();
     HMI_SEQ_DEBUG(req, "Do next request");
-    do_transition(req);
+    WMError rc = do_transition(req);
+    if(rc != WMError::SUCCESS){
+        HMI_SEQ_ERROR(req, errorDescription(rc));
+    }
 }
 
 void App::api_enddraw(char const *appid, char const *drawing_name)
diff --git a/src/app.hpp b/src/app.hpp
index 25a72cb..d13fd4d 100644
--- a/src/app.hpp
+++ b/src/app.hpp
@@ -33,6 +33,7 @@
 #include "wayland_ivi_wm.hpp"
 #include "hmi-debug.h"
 #include "request.hpp"
+#include "wm-error.h"
 
 namespace wl
 {
@@ -261,7 +262,7 @@ struct App
     void emit_invisible(char const *label);
     void emit_visible(char const *label);
 
-    bool do_transition(unsigned sequence_number);
+    WMError do_transition(unsigned sequence_number);
 
     void do_enddraw(unsigned sequence_number);
     void process_request();
@@ -281,8 +282,8 @@ struct App
     // The following function is temporary.
     // Then will be removed when layermanager is finished
     void lm_layout_change(const char *drawing_name);
-    bool lm_layout_change(const struct WMAction &action);
-    bool lm_release(const struct WMAction &action);
+    WMError lm_layout_change(const struct WMAction &action);
+    WMError lm_release(const struct WMAction &action);
     void lm_enddraw(const char *drawing_name);
 };
 
diff --git a/src/applist.cpp b/src/applist.cpp
index 8c13f5f..6b608d0 100644
--- a/src/applist.cpp
+++ b/src/applist.cpp
@@ -54,10 +54,10 @@ void AppList::removeClient(const string &appid)
     client_list.erase(appid);
 }
 
-bool AppList::contains(const string &appid)
+WMError AppList::contains(const string &appid)
 {
     auto result = client_list.find(appid);
-    return (client_list.end() != result) ? true : false;
+    return (client_list.end() != result) ? WMError::SUCCESS : WMError::NOT_REGISTERED;
 }
 
 void AppList::removeSurface(unsigned surface_id){
@@ -150,9 +150,9 @@ const vector<struct WMAction> &AppList::getActions(unsigned req_num)
     }
 }
 
-bool AppList::setAction(unsigned req_num, const struct WMAction &action)
+WMError AppList::setAction(unsigned req_num, const struct WMAction &action)
 {
-    bool result = false;
+    WMError result = WMError::FAIL;
     for (auto &x : req_list)
     {
         if (req_num != x.seq_num)
@@ -160,16 +160,16 @@ bool AppList::setAction(unsigned req_num, const struct WMAction &action)
             continue;
         }
         x.sync_draw_req.push_back(action);
-        result = true;
+        result = WMError::SUCCESS;
         break;
     }
 
     return result;
 }
 
-bool AppList::setAction(unsigned req_num, const string &appid, const string &role, const string &area, bool visible)
+WMError AppList::setAction(unsigned req_num, const string &appid, const string &role, const string &area, bool visible)
 {
-    bool result = false;
+    WMError result = WMError::NOT_REGISTERED;
     for (auto &x : req_list)
     {
         if (req_num != x.seq_num)
@@ -179,7 +179,7 @@ bool AppList::setAction(unsigned req_num, const string &appid, const string &rol
         WMAction action{appid, role, area, visible, false};
 
         x.sync_draw_req.push_back(action);
-        result = true;
+        result = WMError::SUCCESS;
         break;
     }
     return result;
diff --git a/src/applist.hpp b/src/applist.hpp
index 241f153..97f772b 100644
--- a/src/applist.hpp
+++ b/src/applist.hpp
@@ -20,9 +20,9 @@
 #include <string>
 #include <map>
 #include <memory>
-//#include <experimental/optional>
 #include "wm-client.hpp"
 #include "request.hpp"
+#include "wm-error.h"
 
 namespace wm
 {
@@ -41,7 +41,7 @@ class AppList
     void addClient(const std::string &appid, const std::string &role);
     void addClient(const std::string &appid, unsigned layer, unsigned surface, const std::string &role);
     void removeClient(const std::string &appid);
-    bool contains(const std::string &appid);
+    WMError contains(const std::string &appid);
     int  countClient();
     std::shared_ptr<WMClient> lookUpClient(const std::string &appid);
     void removeSurface(unsigned surface);
@@ -54,8 +54,8 @@ class AppList
     if appid is key to manage resources, it is better to select std::string
     otherwise WMClient is better, IMO */
     bool requestFinished();
-    bool setAction(unsigned req_num, const struct WMAction &action);
-    bool setAction(unsigned req_num, const std::string &appid, const std::string &role, const std::string &area, bool visible = true);
+    WMError setAction(unsigned req_num, const struct WMAction &action);
+    WMError setAction(unsigned req_num, const std::string &appid, const std::string &role, const std::string &area, bool visible = true);
     bool setEndDrawFinished(unsigned req_num, const std::string &appid, const std::string &role);
     bool endDrawFullfilled(unsigned req_num);
     void removeRequest(unsigned req_num);