Fix class name "App" to "WindowManager"

struct App is core class of Window Manager.
The name of "struct App" is strange so rename it to WindowManager.

Change-Id: Ia5f2e5acbadb8d58fe772aec0cd15a4a2e91369e
Signed-off-by: Kazumasa Mitsunari <knimitz@witz-inc.co.jp>

1 files changed, 1513 insertions, 0 deletions

diff --git a/src/window_manager.cpp b/src/window_manager.cpp
new file mode 100644
index 0000000..c66d4cf
--- /dev/null
+++ b/src/window_manager.cpp
@@ -0,0 +1,1513 @@
+/*
+ * 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.
+ */
+
+#include <fstream>
+#include <regex>
+
+#include "window_manager.hpp"
+#include "../include/json.hpp"
+#include "applist.hpp"
+
+extern "C"
+{
+#include <systemd/sd-event.h>
+}
+
+namespace wm
+{
+
+static const unsigned kTimeOut = 3000000UL; /* 3s */
+
+/* DrawingArea name used by "{layout}.{area}" */
+const char kNameLayoutNormal[] = "normal";
+const char kNameLayoutSplit[]  = "split";
+const char kNameAreaFull[]     = "full";
+const char kNameAreaMain[]     = "main";
+const char kNameAreaSub[]      = "sub";
+
+/* Key for json obejct */
+const char kKeyDrawingName[] = "drawing_name";
+const char kKeyDrawingArea[] = "drawing_area";
+const char kKeyDrawingRect[] = "drawing_rect";
+const char kKeyX[]           = "x";
+const char kKeyY[]           = "y";
+const char kKeyWidth[]       = "width";
+const char kKeyHeight[]      = "height";
+const char kKeyWidthPixel[]  = "width_pixel";
+const char kKeyHeightPixel[] = "height_pixel";
+const char kKeyWidthMm[]     = "width_mm";
+const char kKeyHeightMm[]    = "height_mm";
+
+static sd_event_source *g_timer_ev_src = nullptr;
+static AppList g_app_list;
+
+namespace
+{
+
+using nlohmann::json;
+
+result<json> file_to_json(char const *filename)
+{
+    json j;
+    std::ifstream i(filename);
+    if (i.fail())
+    {
+        HMI_DEBUG("wm", "Could not open config file, so use default layer information");
+        j = default_layers_json;
+    }
+    else
+    {
+        i >> j;
+    }
+
+    return Ok(j);
+}
+
+struct result<layer_map> load_layer_map(char const *filename)
+{
+    HMI_DEBUG("wm", "loading IDs from %s", filename);
+
+    auto j = file_to_json(filename);
+    if (j.is_err())
+    {
+        return Err<layer_map>(j.unwrap_err());
+    }
+    json jids = j.unwrap();
+
+    return to_layer_map(jids);
+}
+
+static int processTimerHandler(sd_event_source *s, uint64_t usec, void *userdata)
+{
+    HMI_NOTICE("wm", "Time out occurs because the client replys endDraw slow, so revert the request");
+    reinterpret_cast<wm::WindowManager *>(userdata)->timerHandler();
+    return 0;
+}
+
+} // namespace
+
+/**
+ * WindowManager Impl
+ */
+WindowManager::WindowManager(wl::display *d)
+    : chooks{this},
+      display{d},
+      controller{},
+      outputs(),
+      layers(),
+      id_alloc{},
+      pending_events(false)
+{
+    char const *path_layers_json = getenv("AFM_APP_INSTALL_DIR");
+    std::string path;
+    if (!path_layers_json)
+    {
+        HMI_ERROR("wm", "AFM_APP_INSTALL_DIR is not defined");
+        path = std::string(path_layers_json);
+    }
+    else
+    {
+        path = std::string(path_layers_json) + std::string("/etc/layers.json");
+    }
+
+    try
+    {
+        {
+            auto l = load_layer_map(path.c_str());
+            if (l.is_ok())
+            {
+                this->layers = l.unwrap();
+            }
+            else
+            {
+                HMI_ERROR("wm", "%s", l.err().value());
+            }
+        }
+    }
+    catch (std::exception &e)
+    {
+        HMI_ERROR("wm", "Loading of configuration failed: %s", e.what());
+    }
+}
+
+int WindowManager::init()
+{
+    if (!this->display->ok())
+    {
+        return -1;
+    }
+
+    if (this->layers.mapping.empty())
+    {
+        HMI_ERROR("wm", "No surface -> layer mapping loaded");
+        return -1;
+    }
+
+    // Make afb event
+    for (int i = Event_Val_Min; i <= Event_Val_Max; i++)
+    {
+        map_afb_event[kListEventName[i]] = afb_daemon_make_event(kListEventName[i]);
+    }
+
+    this->display->add_global_handler(
+        "wl_output", [this](wl_registry *r, uint32_t name, uint32_t v) {
+            this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
+        });
+
+    this->display->add_global_handler(
+        "ivi_wm", [this](wl_registry *r, uint32_t name, uint32_t v) {
+            this->controller =
+                std::make_unique<struct compositor::controller>(r, name, v);
+
+            // Init controller hooks
+            this->controller->chooks = &this->chooks;
+
+            // This protocol needs the output, so lets just add our mapping here...
+            this->controller->add_proxy_to_id_mapping(
+                this->outputs.back()->proxy.get(),
+                wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
+                    this->outputs.back()->proxy.get())));
+
+            // Create screen
+            this->controller->create_screen(this->outputs.back()->proxy.get());
+
+            // Set display to controller
+            this->controller->display = this->display;
+        });
+
+    // First level objects
+    this->display->roundtrip();
+    // Second level objects
+    this->display->roundtrip();
+    // Third level objects
+    this->display->roundtrip();
+
+    return init_layers();
+}
+
+int WindowManager::dispatch_pending_events()
+{
+    if (this->pop_pending_events())
+    {
+        this->display->dispatch_pending();
+        return 0;
+    }
+    return -1;
+}
+
+bool WindowManager::pop_pending_events()
+{
+    bool x{true};
+    return this->pending_events.compare_exchange_strong(
+        x, false, std::memory_order_consume);
+}
+
+void WindowManager::set_pending_events()
+{
+    this->pending_events.store(true, std::memory_order_release);
+}
+
+optional<int> WindowManager::lookup_id(char const *name)
+{
+    return this->id_alloc.lookup(std::string(name));
+}
+optional<std::string> WindowManager::lookup_name(int id)
+{
+    return this->id_alloc.lookup(id);
+}
+
+/**
+ * init_layers()
+ */
+int WindowManager::init_layers()
+{
+    if (!this->controller)
+    {
+        HMI_ERROR("wm", "ivi_controller global not available");
+        return -1;
+    }
+
+    if (this->outputs.empty())
+    {
+        HMI_ERROR("wm", "no output was set up!");
+        return -1;
+    }
+
+    auto &c = this->controller;
+
+    auto &o = this->outputs.front();
+    auto &s = c->screens.begin()->second;
+    auto &layers = c->layers;
+
+    // Write output dimensions to ivi controller...
+    c->output_size = compositor::size{uint32_t(o->width), uint32_t(o->height)};
+    c->physical_size = compositor::size{uint32_t(o->physical_width),
+                                        uint32_t(o->physical_height)};
+
+    // Clear scene
+    layers.clear();
+
+    // Clear screen
+    s->clear();
+
+    // Quick and dirty setup of layers
+    for (auto const &i : this->layers.mapping)
+    {
+        c->layer_create(i.second.layer_id, o->width, o->height);
+        auto &l = layers[i.second.layer_id];
+        l->set_destination_rectangle(0, 0, o->width, o->height);
+        l->set_visibility(1);
+        HMI_DEBUG("wm", "Setting up layer %s (%d) for surface role match \"%s\"",
+                  i.second.name.c_str(), i.second.layer_id, i.second.role.c_str());
+    }
+
+    // Add layers to screen
+    s->set_render_order(this->layers.layers);
+
+    this->layout_commit();
+
+    this->layers.setupArea(o->width, o->height);
+
+    return 0;
+}
+
+void WindowManager::surface_set_layout(int surface_id, const std::string& area)
+{
+    if (!this->controller->surface_exists(surface_id))
+    {
+        HMI_ERROR("wm", "Surface %d does not exist", surface_id);
+        return;
+    }
+
+    auto o_layer_id = this->layers.get_layer_id(surface_id);
+
+    if (!o_layer_id)
+    {
+        HMI_ERROR("wm", "Surface %d is not associated with any layer!", surface_id);
+        return;
+    }
+
+    uint32_t layer_id = *o_layer_id;
+
+    auto const &layer = this->layers.get_layer(layer_id);
+    auto rect = this->layers.getAreaSize(area);
+    HMI_SEQ_DEBUG(g_app_list.currentRequestNumber(), "%s : x:%d y:%d w:%d h:%d", area.c_str(),
+                    rect.x, rect.y, rect.w, rect.h);
+    auto &s = this->controller->surfaces[surface_id];
+
+    int x = rect.x;
+    int y = rect.y;
+    int w = rect.w;
+    int h = rect.h;
+
+    // less-than-0 values refer to MAX + 1 - $VALUE
+    // e.g. MAX is either screen width or height
+    if (w < 0)
+    {
+        w = this->controller->output_size.w + 1 + w;
+    }
+    if (h < 0)
+    {
+        h = this->controller->output_size.h + 1 + h;
+    }
+
+    HMI_DEBUG("wm", "surface_set_layout for surface %u on layer %u", surface_id,
+              layer_id);
+
+    // set destination to the display rectangle
+    s->set_destination_rectangle(x, y, w, h);
+
+    // update area information
+    this->area_info[surface_id].x = x;
+    this->area_info[surface_id].y = y;
+    this->area_info[surface_id].w = w;
+    this->area_info[surface_id].h = h;
+
+    HMI_DEBUG("wm", "Surface %u now on layer %u with rect { %d, %d, %d, %d }",
+              surface_id, layer_id, x, y, w, h);
+}
+
+void WindowManager::layout_commit()
+{
+    this->controller->commit_changes();
+    this->display->flush();
+}
+
+void WindowManager::api_activate_surface(char const *appid, char const *drawing_name,
+                               char const *drawing_area, const reply_func &reply)
+{
+    ST();
+
+    std::string id = appid;
+    std::string role = drawing_name;
+    std::string area = drawing_area;
+    Task task = Task::TASK_ALLOCATE;
+    unsigned req_num = 0;
+    WMError ret = WMError::UNKNOWN;
+
+    ret = this->setRequest(id, role, area, task, &req_num);
+
+    if(ret != WMError::SUCCESS)
+    {
+        HMI_ERROR("wm", errorDescription(ret));
+        reply("Failed to set request");
+        return;
+    }
+
+    reply(nullptr);
+    if (req_num != g_app_list.currentRequestNumber())
+    {
+        // Add request, then invoked after the previous task is finished
+        HMI_SEQ_DEBUG(req_num, "request is accepted");
+        return;
+    }
+
+    /*
+     * Do allocate tasks
+     */
+    ret = this->doTransition(req_num);
+
+    if (ret != WMError::SUCCESS)
+    {
+        //this->emit_error()
+        HMI_SEQ_ERROR(req_num, errorDescription(ret));
+        g_app_list.removeRequest(req_num);
+        this->processNextRequest();
+    }
+}
+
+void WindowManager::api_deactivate_surface(char const *appid, char const *drawing_name,
+                                 const reply_func &reply)
+{
+    ST();
+
+    /*
+    * Check Phase
+    */
+    std::string id = appid;
+    std::string role = drawing_name;
+    std::string area = ""; //drawing_area;
+    Task task = Task::TASK_RELEASE;
+    unsigned req_num = 0;
+    WMError ret = WMError::UNKNOWN;
+
+    ret = this->setRequest(id, role, area, task, &req_num);
+
+    if (ret != WMError::SUCCESS)
+    {
+        HMI_ERROR("wm", errorDescription(ret));
+        reply("Failed to set request");
+        return;
+    }
+
+    reply(nullptr);
+    if (req_num != g_app_list.currentRequestNumber())
+    {
+        // Add request, then invoked after the previous task is finished
+        HMI_SEQ_DEBUG(req_num, "request is accepted");
+        return;
+    }
+
+    /*
+    * Do allocate tasks
+    */
+    ret = this->doTransition(req_num);
+
+    if (ret != WMError::SUCCESS)
+    {
+        //this->emit_error()
+        HMI_SEQ_ERROR(req_num, errorDescription(ret));
+        g_app_list.removeRequest(req_num);
+        this->processNextRequest();
+    }
+}
+
+void WindowManager::api_enddraw(char const *appid, char const *drawing_name)
+{
+    std::string id = appid;
+    std::string role = drawing_name;
+    unsigned current_req = g_app_list.currentRequestNumber();
+    bool result = g_app_list.setEndDrawFinished(current_req, id, role);
+
+    if (!result)
+    {
+        HMI_ERROR("wm", "%s is not in transition state", id.c_str());
+        return;
+    }
+
+    if (g_app_list.endDrawFullfilled(current_req))
+    {
+        // do task for endDraw
+        this->stopTimer();
+        WMError ret = this->doEndDraw(current_req);
+
+        if(ret != WMError::SUCCESS)
+        {
+            //this->emit_error();
+        }
+        HMI_SEQ_INFO(current_req, "Finish request status: %s", errorDescription(ret));
+
+        g_app_list.removeRequest(current_req);
+
+        this->processNextRequest();
+    }
+    else
+    {
+        HMI_SEQ_INFO(current_req, "Wait other App call endDraw");
+        return;
+    }
+}
+
+void WindowManager::api_ping() { this->dispatch_pending_events(); }
+
+void WindowManager::send_event(char const *evname, char const *label)
+{
+    HMI_DEBUG("wm", "%s: %s(%s)", __func__, evname, label);
+
+    json_object *j = json_object_new_object();
+    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
+
+    int ret = afb_event_push(this->map_afb_event[evname], j);
+    if (ret != 0)
+    {
+        HMI_DEBUG("wm", "afb_event_push failed: %m");
+    }
+}
+
+void WindowManager::send_event(char const *evname, char const *label, char const *area,
+                     int x, int y, int w, int h)
+{
+    HMI_DEBUG("wm", "%s: %s(%s, %s) x:%d y:%d w:%d h:%d",
+              __func__, evname, label, area, x, y, w, h);
+
+    json_object *j_rect = json_object_new_object();
+    json_object_object_add(j_rect, kKeyX, json_object_new_int(x));
+    json_object_object_add(j_rect, kKeyY, json_object_new_int(y));
+    json_object_object_add(j_rect, kKeyWidth, json_object_new_int(w));
+    json_object_object_add(j_rect, kKeyHeight, json_object_new_int(h));
+
+    json_object *j = json_object_new_object();
+    json_object_object_add(j, kKeyDrawingName, json_object_new_string(label));
+    json_object_object_add(j, kKeyDrawingArea, json_object_new_string(area));
+    json_object_object_add(j, kKeyDrawingRect, j_rect);
+
+    int ret = afb_event_push(this->map_afb_event[evname], j);
+    if (ret != 0)
+    {
+        HMI_DEBUG("wm", "afb_event_push failed: %m");
+    }
+}
+
+/**
+ * proxied events
+ */
+void WindowManager::surface_created(uint32_t surface_id)
+{
+    auto layer_id = this->layers.get_layer_id(surface_id);
+    if (!layer_id)
+    {
+        HMI_DEBUG("wm", "Newly created surfce %d is not associated with any layer!",
+                  surface_id);
+        return;
+    }
+
+    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", surface_id, *layer_id);
+
+    this->controller->layers[*layer_id]->add_surface(surface_id);
+    this->layout_commit();
+}
+
+void WindowManager::surface_removed(uint32_t surface_id)
+{
+    HMI_DEBUG("wm", "surface_id is %u", surface_id);
+    g_app_list.removeSurface(surface_id);
+}
+
+void WindowManager::removeClient(const std::string &appid)
+{
+    HMI_DEBUG("wm", "Remove clinet %s from list", appid.c_str());
+    g_app_list.removeClient(appid);
+}
+
+void WindowManager::exceptionProcessForTransition()
+{
+    unsigned req_num = g_app_list.currentRequestNumber();
+    HMI_SEQ_NOTICE(req_num, "Process exception handling for request. Remove current request %d", req_num);
+    g_app_list.removeRequest(req_num);
+    HMI_SEQ_NOTICE(g_app_list.currentRequestNumber(), "Process next request if exists");
+    this->processNextRequest();
+}
+
+void WindowManager::timerHandler()
+{
+    unsigned req_num = g_app_list.currentRequestNumber();
+    HMI_SEQ_DEBUG(req_num, "Timer expired remove Request");
+    g_app_list.reqDump();
+    g_app_list.removeRequest(req_num);
+    this->processNextRequest();
+}
+
+void WindowManager::emit_activated(char const *label)
+{
+    this->send_event(kListEventName[Event_Active], label);
+}
+
+void WindowManager::emit_deactivated(char const *label)
+{
+    this->send_event(kListEventName[Event_Inactive], label);
+}
+
+void WindowManager::emit_syncdraw(char const *label, char const *area, int x, int y, int w, int h)
+{
+    this->send_event(kListEventName[Event_SyncDraw], label, area, x, y, w, h);
+}
+
+void WindowManager::emit_syncdraw(const std::string &role, const std::string &area)
+{
+    compositor::rect rect = this->layers.getAreaSize(area);
+    this->send_event(kListEventName[Event_SyncDraw],
+        role.c_str(), area.c_str(), rect.x, rect.y, rect.w, rect.h);
+}
+
+void WindowManager::emit_flushdraw(char const *label)
+{
+    this->send_event(kListEventName[Event_FlushDraw], label);
+}
+
+void WindowManager::emit_visible(char const *label, bool is_visible)
+{
+    this->send_event(is_visible ? kListEventName[Event_Visible] : kListEventName[Event_Invisible], label);
+}
+
+void WindowManager::emit_invisible(char const *label)
+{
+    return emit_visible(label, false);
+}
+
+void WindowManager::emit_visible(char const *label) { return emit_visible(label, true); }
+
+result<int> WindowManager::api_request_surface(char const *appid, char const *drawing_name)
+{
+    auto lid = this->layers.get_layer_id(std::string(drawing_name));
+    if (!lid)
+    {
+        /**
+       * register drawing_name as fallback and make it displayed.
+       */
+        lid = this->layers.get_layer_id(std::string("Fallback"));
+        HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
+        if (!lid)
+        {
+            return Err<int>("Drawing name does not match any role, Fallback is disabled");
+        }
+    }
+
+    auto rname = this->lookup_id(drawing_name);
+    if (!rname)
+    {
+        // name does not exist yet, allocate surface id...
+        auto id = int(this->id_alloc.generate_id(drawing_name));
+        this->layers.add_surface(id, *lid);
+
+        // set the main_surface[_name] here and now
+        if (!this->layers.main_surface_name.empty() &&
+            this->layers.main_surface_name == drawing_name)
+        {
+            this->layers.main_surface = id;
+            HMI_DEBUG("wm", "Set main_surface id to %u", id);
+        }
+
+        // add client into the db
+        std::string appid_str(appid);
+        std::string role(drawing_name);
+        g_app_list.addClient(appid_str, *lid, id, role);
+
+        return Ok<int>(id);
+    }
+
+    // Check currently registered drawing names if it is already there.
+    return Err<int>("Surface already present");
+}
+
+char const *WindowManager::api_request_surface(char const *appid, char const *drawing_name,
+                                     char const *ivi_id)
+{
+    ST();
+
+    auto lid = this->layers.get_layer_id(std::string(drawing_name));
+    unsigned sid = std::stol(ivi_id);
+
+    if (!lid)
+    {
+        /**
+       * register drawing_name as fallback and make it displayed.
+       */
+        lid = this->layers.get_layer_id(std::string("Fallback"));
+        HMI_DEBUG("wm", "%s is not registered in layers.json, then fallback as normal app", drawing_name);
+        if (!lid)
+        {
+            return "Drawing name does not match any role, Fallback is disabled";
+        }
+    }
+
+    auto rname = this->lookup_id(drawing_name);
+
+    if (rname)
+    {
+        return "Surface already present";
+    }
+
+    // register pair drawing_name and ivi_id
+    this->id_alloc.register_name_id(drawing_name, sid);
+    this->layers.add_surface(sid, *lid);
+
+    // this surface is already created
+    HMI_DEBUG("wm", "surface_id is %u, layer_id is %u", sid, *lid);
+
+    this->controller->layers[*lid]->add_surface(sid);
+    this->layout_commit();
+
+    // add client into the db
+    std::string appid_str(appid);
+    std::string role(drawing_name);
+    g_app_list.addClient(appid_str, *lid, sid, role);
+
+    return nullptr;
+}
+
+result<json_object *> WindowManager::api_get_display_info()
+{
+    // Check controller
+    if (!this->controller)
+    {
+        return Err<json_object *>("ivi_controller global not available");
+    }
+
+    // Set display info
+    compositor::size o_size = this->controller->output_size;
+    compositor::size p_size = this->controller->physical_size;
+
+    json_object *object = json_object_new_object();
+    json_object_object_add(object, kKeyWidthPixel, json_object_new_int(o_size.w));
+    json_object_object_add(object, kKeyHeightPixel, json_object_new_int(o_size.h));
+    json_object_object_add(object, kKeyWidthMm, json_object_new_int(p_size.w));
+    json_object_object_add(object, kKeyHeightMm, json_object_new_int(p_size.h));
+
+    return Ok<json_object *>(object);
+}
+
+result<json_object *> WindowManager::api_get_area_info(char const *drawing_name)
+{
+    HMI_DEBUG("wm", "called");
+
+    // Check drawing name, surface/layer id
+    auto const &surface_id = this->lookup_id(drawing_name);
+    if (!surface_id)
+    {
+        return Err<json_object *>("Surface does not exist");
+    }
+
+    if (!this->controller->surface_exists(*surface_id))
+    {
+        return Err<json_object *>("Surface does not exist in controller!");
+    }
+
+    auto layer_id = this->layers.get_layer_id(*surface_id);
+    if (!layer_id)
+    {
+        return Err<json_object *>("Surface is not on any layer!");
+    }
+
+    auto o_state = *this->layers.get_layout_state(*surface_id);
+    if (o_state == nullptr)
+    {
+        return Err<json_object *>("Could not find layer for surface");
+    }
+
+    struct LayoutState &state = *o_state;
+    if ((state.main != *surface_id) && (state.sub != *surface_id))
+    {
+        return Err<json_object *>("Surface is inactive");
+    }
+
+    // Set area rectangle
+    compositor::rect area_info = this->area_info[*surface_id];
+    json_object *object = json_object_new_object();
+    json_object_object_add(object, kKeyX, json_object_new_int(area_info.x));
+    json_object_object_add(object, kKeyY, json_object_new_int(area_info.y));
+    json_object_object_add(object, kKeyWidth, json_object_new_int(area_info.w));
+    json_object_object_add(object, kKeyHeight, json_object_new_int(area_info.h));
+
+    return Ok<json_object *>(object);
+}
+
+WMError WindowManager::setRequest(const std::string& appid, const std::string &role, const std::string &area,
+                            Task task, unsigned* req_num)
+{
+    if (!g_app_list.contains(appid))
+    {
+        return WMError::NOT_REGISTERED;
+    }
+
+    auto client = g_app_list.lookUpClient(appid);
+
+    /*
+     * Queueing Phase
+     */
+    unsigned current = g_app_list.currentRequestNumber();
+    unsigned requested_num = g_app_list.getRequestNumber(appid);
+    if (requested_num != 0)
+    {
+        HMI_SEQ_INFO(requested_num,
+            "%s %s %s request is already queued", appid.c_str(), role.c_str(), area.c_str());
+        return REQ_REJECTED;
+    }
+
+    WMRequest req = WMRequest(appid, role, area, task);
+    unsigned new_req = g_app_list.addRequest(req);
+    *req_num = new_req;
+    g_app_list.reqDump();
+
+    HMI_SEQ_DEBUG(current, "%s start sequence with %s, %s", appid.c_str(), role.c_str(), area.c_str());
+
+    return WMError::SUCCESS;
+}
+
+WMError WindowManager::doTransition(unsigned req_num)
+{
+    HMI_SEQ_DEBUG(req_num, "check policy");
+    WMError ret = this->checkPolicy(req_num);
+    if (ret != WMError::SUCCESS)
+    {
+        return ret;
+    }
+    HMI_SEQ_DEBUG(req_num, "Start transition.");
+    ret = this->startTransition(req_num);
+    return ret;
+}
+
+WMError WindowManager::checkPolicy(unsigned req_num)
+{
+    /*
+    * Check Policy
+    */
+    // get current trigger
+    bool found = false;
+    bool split = false;
+    WMError ret = WMError::LAYOUT_CHANGE_FAIL;
+    auto trigger = g_app_list.getRequest(req_num, &found);
+    if (!found)
+    {
+        ret = WMError::NO_ENTRY;
+        return ret;
+    }
+    std::string req_area = trigger.area;
+
+    // >>>> Compatible with current window manager until policy manager coming
+    if (trigger.task == Task::TASK_ALLOCATE)
+    {
+        HMI_SEQ_DEBUG(req_num, "Check split or not");
+        const char *msg = this->check_surface_exist(trigger.role.c_str());
+
+        if (msg)
+        {
+            HMI_SEQ_ERROR(req_num, msg);
+            ret = WMError::LAYOUT_CHANGE_FAIL;
+            return ret;
+        }
+
+        auto const &surface_id = this->lookup_id(trigger.role.c_str());
+        auto o_state = *this->layers.get_layout_state(*surface_id);
+        struct LayoutState &state = *o_state;
+
+        unsigned curernt_sid = state.main;
+        split = this->can_split(state, *surface_id);
+
+        if (split)
+        {
+            HMI_SEQ_DEBUG(req_num, "Split happens");
+            // Get current visible role
+            std::string add_role = this->lookup_name(state.main).value();
+            // Set next area
+            std::string add_area = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaMain);
+            // Change request area
+            req_area = std::string(kNameLayoutSplit) + "." + std::string(kNameAreaSub);
+            HMI_SEQ_NOTICE(req_num, "Change request area from %s to %s, because split happens",
+                                trigger.area.c_str(), req_area.c_str());
+            // set another action
+            std::string add_name = g_app_list.getAppID(curernt_sid, add_role, &found);
+            if (!found)
+            {
+                HMI_SEQ_ERROR(req_num, "Couldn't widhdraw with surfaceID : %d", curernt_sid);
+                ret = WMError::NOT_REGISTERED;
+                return ret;
+            }
+            HMI_SEQ_INFO(req_num, "Additional split app %s, role: %s, area: %s",
+                         add_name.c_str(), add_role.c_str(), add_area.c_str());
+            // Set split action
+            bool end_draw_finished = false;
+            WMAction split_action{
+                add_name,
+                add_role,
+                add_area,
+                TaskVisible::VISIBLE,
+                end_draw_finished};
+            WMError ret = g_app_list.setAction(req_num, split_action);
+            if (ret != WMError::SUCCESS)
+            {
+                HMI_SEQ_ERROR(req_num, "Failed to set action");
+                return ret;
+            }
+            g_app_list.reqDump();
+        }
+    }
+    else
+    {
+        HMI_SEQ_DEBUG(req_num, "split doesn't happen");
+    }
+
+    // Set invisible task(Remove if policy manager finish)
+    ret = this->setInvisibleTask(trigger.role, split);
+    if(ret != WMError::SUCCESS)
+    {
+        HMI_SEQ_ERROR(req_num, "Failed to set invisible task: %s", errorDescription(ret));
+        return ret;
+    }
+
+    /*  get new status from Policy Manager */
+    HMI_SEQ_NOTICE(req_num, "ATM, Policy manager does't exist, then set WMAction as is");
+    if(trigger.role == "HomeScreen")
+    {
+        // TODO : Remove when Policy Manager completed
+        HMI_SEQ_NOTICE(req_num, "Hack. This process will be removed. Change HomeScreen code!!");
+        req_area = "fullscreen";
+    }
+    TaskVisible task_visible =
+        (trigger.task == Task::TASK_ALLOCATE) ? TaskVisible::VISIBLE : TaskVisible::INVISIBLE;
+
+    ret = g_app_list.setAction(req_num, trigger.appid, trigger.role, req_area, task_visible);
+    g_app_list.reqDump();
+
+    return ret;
+}
+
+WMError WindowManager::startTransition(unsigned req_num)
+{
+    bool sync_draw_happen = false;
+    bool found = false;
+    WMError ret = WMError::SUCCESS;
+    auto actions = g_app_list.getActions(req_num, &found);
+    if (!found)
+    {
+        ret = WMError::NO_ENTRY;
+        HMI_SEQ_ERROR(req_num,
+            "Window Manager bug :%s : Action is not set", errorDescription(ret));
+        return ret;
+    }
+
+    for (const auto &action : actions)
+    {
+        if (action.visible != TaskVisible::INVISIBLE)
+        {
+            sync_draw_happen = true;
+            this->emit_syncdraw(action.role, action.area);
+            /* TODO: emit event for app not subscriber
+            if(g_app_list.contains(y.appid))
+                g_app_list.lookUpClient(y.appid)->emit_syncdraw(y.role, y.area); */
+        }
+    }
+
+    if (sync_draw_happen)
+    {
+        this->setTimer();
+    }
+    else
+    {
+        // deactivate only, no syncDraw
+        // Make it deactivate here
+        for (const auto &x : actions)
+        {
+            if (g_app_list.contains(x.appid))
+            {
+                auto client = g_app_list.lookUpClient(x.appid);
+                this->deactivate(client->surfaceID(x.role));
+            }
+        }
+        ret = NO_LAYOUT_CHANGE;
+    }
+    return ret;
+}
+
+WMError WindowManager::setInvisibleTask(const std::string &role, bool split)
+{
+    unsigned req_num = g_app_list.currentRequestNumber();
+    HMI_SEQ_DEBUG(req_num, "set current visible app to invisible task");
+    // This task is copied from original actiavete surface
+    const char *drawing_name = role.c_str();
+    auto const &surface_id = this->lookup_id(drawing_name);
+    auto layer_id = this->layers.get_layer_id(*surface_id);
+    auto o_state = *this->layers.get_layout_state(*surface_id);
+    struct LayoutState &state = *o_state;
+    std::string add_name, add_role;
+    std::string add_area = "";
+    int surface;
+    TaskVisible task_visible = TaskVisible::INVISIBLE;
+    bool end_draw_finished = true;
+    bool found = false;
+
+    for (auto const &l : this->layers.mapping)
+    {
+        if (l.second.layer_id <= *layer_id)
+        {
+            continue;
+        }
+        HMI_DEBUG("wm", "debug: main %d , sub : %d", l.second.state.main, l.second.state.sub);
+        if (l.second.state.main != -1)
+        {
+            //this->deactivate(l.second.state.main);
+            surface = l.second.state.main;
+            add_role = *this->id_alloc.lookup(surface);
+            add_name = g_app_list.getAppID(surface, add_role, &found);
+            if(!found){
+                return WMError::NOT_REGISTERED;
+            }
+            HMI_SEQ_INFO(req_num, "Invisible %s", add_name.c_str());
+            WMAction act{add_name, add_role, add_area, task_visible, end_draw_finished};
+            g_app_list.setAction(req_num, act);
+            l.second.state.main = -1;
+        }
+
+        if (l.second.state.sub != -1)
+        {
+            //this->deactivate(l.second.state.sub);
+            surface = l.second.state.sub;
+            add_role = *this->id_alloc.lookup(surface);
+            add_name = g_app_list.getAppID(surface, add_role, &found);
+            if (!found)
+            {
+                return WMError::NOT_REGISTERED;
+            }
+            HMI_SEQ_INFO(req_num, "Invisible %s", add_name.c_str());
+            WMAction act{add_name, add_role, add_area, task_visible, end_draw_finished};
+            g_app_list.setAction(req_num, act);
+            l.second.state.sub = -1;
+        }
+    }
+
+    // change current state here, but this is hack
+    auto layer = this->layers.get_layer(*layer_id);
+
+    if (state.main == -1)
+    {
+        HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
+    }
+    else
+    {
+        if (0 != strcmp(drawing_name, "HomeScreen"))
+        {
+            if (split)
+            {
+                if (state.sub != *surface_id)
+                {
+                    if (state.sub != -1)
+                    {
+                        //this->deactivate(state.sub);
+                        WMAction deact_sub;
+                        deact_sub.role =
+                            std::move(*this->id_alloc.lookup(state.sub));
+                        deact_sub.area = add_area;
+                        deact_sub.appid = g_app_list.getAppID(state.sub, deact_sub.role, &found);
+                        if (!found)
+                        {
+                            HMI_SEQ_ERROR(req_num, "App doesn't exist for role : %s",
+                                            deact_sub.role.c_str());
+                            return WMError::NOT_REGISTERED;
+                        }
+                        deact_sub.visible = task_visible;
+                        deact_sub.end_draw_finished = end_draw_finished;
+                        HMI_SEQ_DEBUG(req_num, "Set invisible task for %s", deact_sub.appid.c_str());
+                        g_app_list.setAction(req_num, deact_sub);
+                    }
+                }
+                //state = LayoutState{state.main, *surface_id};
+            }
+            else
+            {
+                HMI_DEBUG("wm", "Layout: %s", kNameLayoutNormal);
+
+                //this->surface_set_layout(*surface_id);
+                if (state.main != *surface_id)
+                {
+                    // this->deactivate(state.main);
+                    WMAction deact_main;
+                    deact_main.role = std::move(*this->id_alloc.lookup(state.main));
+                    ;
+                    deact_main.area = add_area;
+                    deact_main.appid = g_app_list.getAppID(state.main, deact_main.role, &found);
+                    if (!found)
+                    {
+                        HMI_SEQ_DEBUG(req_num, "sub surface ddoesn't exist");
+                        return WMError::NOT_REGISTERED;
+                    }
+                    deact_main.visible = task_visible;
+                    deact_main.end_draw_finished = end_draw_finished;
+                    HMI_SEQ_DEBUG(req_num, "sub surface doesn't exist");
+                    g_app_list.setAction(req_num, deact_main);
+                }
+                if (state.sub != -1)
+                {
+                    if (state.sub != *surface_id)
+                    {
+                        //this->deactivate(state.sub);
+                        WMAction deact_sub;
+                        deact_sub.role = std::move(*this->id_alloc.lookup(state.sub));
+                        ;
+                        deact_sub.area = add_area;
+                        deact_sub.appid = g_app_list.getAppID(state.sub, deact_sub.role, &found);
+                        if (!found)
+                        {
+                            HMI_SEQ_DEBUG(req_num, "sub surface ddoesn't exist");
+                            return WMError::NOT_REGISTERED;
+                        }
+                        deact_sub.visible = task_visible;
+                        deact_sub.end_draw_finished = end_draw_finished;
+                        HMI_SEQ_DEBUG(req_num, "sub surface doesn't exist");
+                        g_app_list.setAction(req_num, deact_sub);
+                    }
+                }
+                //state = LayoutState{*surface_id};
+            }
+        }
+    }
+    return WMError::SUCCESS;
+}
+
+WMError WindowManager::doEndDraw(unsigned req_num)
+{
+    // get actions
+    bool found;
+    auto actions = g_app_list.getActions(req_num, &found);
+    WMError ret = WMError::SUCCESS;
+    if (!found)
+    {
+        ret = WMError::NO_ENTRY;
+        return ret;
+    }
+
+    HMI_SEQ_INFO(req_num, "do endDraw");
+
+    // layout change and make it visible
+    for (const auto &act : actions)
+    {
+        // layout change
+        if(!g_app_list.contains(act.appid)){
+            ret = WMError::NOT_REGISTERED;
+        }
+        ret = this->layoutChange(act);
+        if(ret != WMError::SUCCESS)
+        {
+            HMI_SEQ_WARNING(req_num,
+                "Failed to manipulate surfaces while state change : %s", errorDescription(ret));
+            return ret;
+        }
+        ret = this->visibilityChange(act);
+        if (ret != WMError::SUCCESS)
+        {
+            HMI_SEQ_WARNING(req_num,
+                "Failed to manipulate surfaces while state change : %s", errorDescription(ret));
+            return ret;
+        }
+        HMI_SEQ_DEBUG(req_num, "visible %s", act.role.c_str());
+        //this->lm_enddraw(act.role.c_str());
+    }
+
+    // Change current state
+    this->changeCurrentState(req_num);
+
+    HMI_SEQ_INFO(req_num, "emit flushDraw");
+
+    for(const auto &act_flush : actions)
+    {
+        if(act_flush.visible != TaskVisible::INVISIBLE)
+        {
+            this->emit_flushdraw(act_flush.role.c_str());
+        }
+    }
+
+    return ret;
+}
+
+WMError WindowManager::setSurfaceSize(unsigned surface, const std::string &area)
+{
+    this->surface_set_layout(surface, area);
+
+    return WMError::SUCCESS;
+}
+
+WMError WindowManager::layoutChange(const WMAction &action)
+{
+    if (action.visible == TaskVisible::INVISIBLE)
+    {
+        // Visibility is not change -> no redraw is required
+        return WMError::SUCCESS;
+    }
+    auto client = g_app_list.lookUpClient(action.appid);
+    unsigned surface = client->surfaceID(action.role);
+    if (surface == 0)
+    {
+        HMI_SEQ_ERROR(g_app_list.currentRequestNumber(),
+                      "client doesn't have surface with role(%s)", action.role.c_str());
+        return WMError::NOT_REGISTERED;
+    }
+    // Layout Manager
+    WMError ret = this->setSurfaceSize(surface, action.area);
+    return ret;
+}
+
+WMError WindowManager::visibilityChange(const WMAction &action)
+{
+    HMI_SEQ_DEBUG(g_app_list.currentRequestNumber(), "Change visibility");
+    if(!g_app_list.contains(action.appid)){
+        return WMError::NOT_REGISTERED;
+    }
+    auto client = g_app_list.lookUpClient(action.appid);
+    unsigned surface = client->surfaceID(action.role);
+    if(surface == 0)
+    {
+        HMI_SEQ_ERROR(g_app_list.currentRequestNumber(),
+                      "client doesn't have surface with role(%s)", action.role.c_str());
+        return WMError::NOT_REGISTERED;
+    }
+
+    if (action.visible != TaskVisible::INVISIBLE)
+    {
+        this->activate(surface); // Layout Manager task
+    }
+    else
+    {
+        this->deactivate(surface); // Layout Manager task
+    }
+    return WMError::SUCCESS;
+}
+
+WMError WindowManager::changeCurrentState(unsigned req_num)
+{
+    HMI_SEQ_DEBUG(req_num, "Change current layout state");
+    bool trigger_found = false, action_found = false;
+    auto trigger = g_app_list.getRequest(req_num, &trigger_found);
+    auto actions = g_app_list.getActions(req_num, &action_found);
+    if (!trigger_found || !action_found)
+    {
+        HMI_SEQ_ERROR(req_num, "Action not found");
+        return WMError::LAYOUT_CHANGE_FAIL;
+    }
+
+    // Layout state reset
+    struct LayoutState reset_state{-1, -1};
+    HMI_SEQ_DEBUG(req_num,"Reset layout state");
+    for (const auto &action : actions)
+    {
+        if(!g_app_list.contains(action.appid)){
+            return WMError::NOT_REGISTERED;
+        }
+        auto client = g_app_list.lookUpClient(action.appid);
+        auto pCurState = *this->layers.get_layout_state((int)client->surfaceID(action.role));
+        if(pCurState == nullptr)
+        {
+            HMI_SEQ_ERROR(req_num, "Counldn't find current status");
+            continue;
+        }
+        pCurState->main = reset_state.main;
+        pCurState->sub = reset_state.sub;
+    }
+
+    HMI_SEQ_DEBUG(req_num, "Change state");
+    for (const auto &action : actions)
+    {
+        auto client = g_app_list.lookUpClient(action.appid);
+        auto pLayerCurState = *this->layers.get_layout_state((int)client->surfaceID(action.role));
+        if (pLayerCurState == nullptr)
+        {
+            HMI_SEQ_ERROR(req_num, "Counldn't find current status");
+            continue;
+        }
+        int surface = -1;
+
+        if (action.visible != TaskVisible::INVISIBLE)
+        {
+            surface = (int)client->surfaceID(action.role);
+            HMI_SEQ_INFO(req_num, "Change %s surface : %d, state visible area : %s",
+                            action.role.c_str(), surface, action.area.c_str());
+            // visible == true -> layout changes
+            if(action.area == "normal.full" || action.area == "split.main")
+            {
+                pLayerCurState->main = surface;
+            }
+            else if (action.area == "split.sub")
+            {
+                pLayerCurState->sub = surface;
+            }
+            else
+            {
+                // normalfull
+                pLayerCurState->main = surface;
+            }
+        }
+    }
+
+    return WMError::SUCCESS;
+}
+
+void WindowManager::setTimer()
+{
+    HMI_SEQ_DEBUG(g_app_list.currentRequestNumber(), "Timer set activate");
+    if (g_timer_ev_src == nullptr)
+    {
+        // firsttime set into sd_event
+        int ret = sd_event_add_time(afb_daemon_get_event_loop(), &g_timer_ev_src,
+            CLOCK_REALTIME, time(NULL) * (1000000UL) + kTimeOut, 1, processTimerHandler, this);
+        if (ret < 0)
+        {
+            HMI_ERROR("wm", "Could't set timer");
+        }
+    }
+    else
+    {
+        // update timer limitation after second time
+        sd_event_source_set_time(g_timer_ev_src, time(NULL) * (1000000UL) + kTimeOut);
+        sd_event_source_set_enabled(g_timer_ev_src, SD_EVENT_ONESHOT);
+    }
+}
+
+void WindowManager::stopTimer()
+{
+    unsigned req_num = g_app_list.currentRequestNumber();
+    HMI_SEQ_DEBUG(req_num, "Timer stop");
+    int rc = sd_event_source_set_enabled(g_timer_ev_src, SD_EVENT_OFF);
+    if (rc < 0)
+    {
+        HMI_SEQ_ERROR(req_num, "Timer stop failed");
+    }
+}
+
+void WindowManager::processNextRequest()
+{
+    g_app_list.next();
+    g_app_list.reqDump();
+    unsigned req_num = g_app_list.currentRequestNumber();
+    if (g_app_list.haveRequest())
+    {
+        HMI_SEQ_DEBUG(req_num, "Process next request");
+        WMError rc = doTransition(req_num);
+        if (rc != WMError::SUCCESS)
+        {
+            HMI_SEQ_ERROR(req_num, errorDescription(rc));
+        }
+    }
+    else
+    {
+        HMI_SEQ_DEBUG(req_num, "Nothing Request. Waiting Request");
+    }
+}
+
+const char *WindowManager::check_surface_exist(const char *drawing_name)
+{
+    auto const &surface_id = this->lookup_id(drawing_name);
+    if (!surface_id)
+    {
+        return "Surface does not exist";
+    }
+
+    if (!this->controller->surface_exists(*surface_id))
+    {
+        return "Surface does not exist in controller!";
+    }
+
+    auto layer_id = this->layers.get_layer_id(*surface_id);
+
+    if (!layer_id)
+    {
+        return "Surface is not on any layer!";
+    }
+
+    auto o_state = *this->layers.get_layout_state(*surface_id);
+
+    if (o_state == nullptr)
+    {
+        return "Could not find layer for surface";
+    }
+
+    HMI_DEBUG("wm", "surface %d is detected", *surface_id);
+    return nullptr;
+}
+
+void WindowManager::activate(int id)
+{
+    auto ip = this->controller->sprops.find(id);
+    if (ip != this->controller->sprops.end())
+    {
+        this->controller->surfaces[id]->set_visibility(1);
+        char const *label =
+            this->lookup_name(id).value_or("unknown-name").c_str();
+
+         // FOR CES DEMO >>>
+        if ((0 == strcmp(label, "Radio"))       ||
+            (0 == strcmp(label, "MediaPlayer")) ||
+            (0 == strcmp(label, "Music"))       ||
+            (0 == strcmp(label, "Navigation")))
+        {
+            for (auto i = surface_bg.begin(); i != surface_bg.end(); ++i)
+            {
+                if (id == *i)
+                {
+                    // Remove id
+                    this->surface_bg.erase(i);
+
+                    // Remove from BG layer (999)
+                    HMI_DEBUG("wm", "Remove %s(%d) from BG layer", label, id);
+                    this->controller->layers[999]->remove_surface(id);
+
+                    // Add to FG layer (1001)
+                    HMI_DEBUG("wm", "Add %s(%d) to FG layer", label, id);
+                    this->controller->layers[1001]->add_surface(id);
+
+                    for (int j : this->surface_bg)
+                    {
+                        HMI_DEBUG("wm", "Stored id:%d", j);
+                    }
+                    break;
+                }
+            }
+        }
+        // <<< FOR CES DEMO
+        this->layout_commit();
+
+        this->emit_visible(label);
+        this->emit_activated(label);
+    }
+}
+
+void WindowManager::deactivate(int id)
+{
+    auto ip = this->controller->sprops.find(id);
+    if (ip != this->controller->sprops.end())
+    {
+        char const *label =
+            this->lookup_name(id).value_or("unknown-name").c_str();
+
+        // FOR CES DEMO >>>
+        if ((0 == strcmp(label, "Radio"))       ||
+            (0 == strcmp(label, "MediaPlayer")) ||
+            (0 == strcmp(label, "Music"))       ||
+            (0 == strcmp(label, "Navigation")))
+        {
+
+            // Store id
+            this->surface_bg.push_back(id);
+
+            // Remove from FG layer (1001)
+            HMI_DEBUG("wm", "Remove %s(%d) from FG layer", label, id);
+            this->controller->layers[1001]->remove_surface(id);
+
+            // Add to BG layer (999)
+            HMI_DEBUG("wm", "Add %s(%d) to BG layer", label, id);
+            this->controller->layers[999]->add_surface(id);
+
+            for (int j : surface_bg)
+            {
+                HMI_DEBUG("wm", "Stored id:%d", j);
+            }
+        }
+        else
+        {
+            this->controller->surfaces[id]->set_visibility(0);
+        }
+        // <<< FOR CES DEMO
+
+        this->emit_deactivated(label);
+        this->emit_invisible(label);
+    }
+}
+
+bool WindowManager::can_split(struct LayoutState const &state, int new_id)
+{
+    if (state.main != -1 && state.main != new_id)
+    {
+        auto new_id_layer = this->layers.get_layer_id(new_id).value();
+        auto current_id_layer = this->layers.get_layer_id(state.main).value();
+
+        // surfaces are on separate layers, don't bother.
+        if (new_id_layer != current_id_layer)
+        {
+            return false;
+        }
+
+        std::string const &new_id_str = this->lookup_name(new_id).value();
+        std::string const &cur_id_str = this->lookup_name(state.main).value();
+
+        auto const &layer = this->layers.get_layer(new_id_layer);
+
+        HMI_DEBUG("wm", "layer info name: %s", layer->name.c_str());
+
+        if (layer->layouts.empty())
+        {
+            return false;
+        }
+
+        for (auto i = layer->layouts.cbegin(); i != layer->layouts.cend(); i++)
+        {
+            HMI_DEBUG("wm", "%d main_match '%s'", new_id_layer, i->main_match.c_str());
+            auto rem = std::regex(i->main_match);
+            if (std::regex_match(cur_id_str, rem))
+            {
+                // build the second one only if the first already matched
+                HMI_DEBUG("wm", "%d sub_match '%s'", new_id_layer, i->sub_match.c_str());
+                auto res = std::regex(i->sub_match);
+                if (std::regex_match(new_id_str, res))
+                {
+                    HMI_DEBUG("wm", "layout matched!");
+                    return true;
+                }
+            }
+        }
+    }
+
+    return false;
+}
+
+/**
+ * controller_hooks
+ */
+void controller_hooks::surface_created(uint32_t surface_id)
+{
+    this->app->surface_created(surface_id);
+}
+
+void controller_hooks::surface_removed(uint32_t surface_id)
+{
+    this->app->surface_removed(surface_id);
+}
+
+void controller_hooks::surface_visibility(uint32_t /*surface_id*/,
+                                          uint32_t /*v*/) {}
+
+void controller_hooks::surface_destination_rectangle(uint32_t /*surface_id*/,
+                                                     uint32_t /*x*/,
+                                                     uint32_t /*y*/,
+                                                     uint32_t /*w*/,
+                                                     uint32_t /*h*/) {}
+
+} // namespace wm