X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=src%2Fwidget_app.c;h=4c20c2ce62b361773cf33b86db07fb2e2d6ef690;hb=f42c993425ba9047016c56762e84ddf1ac28692c;hp=b3c18c5af2a084afa0ac94128e25af9cbab26637;hpb=e123e9a0ee0720d4d84b17dabca59a92cc7ed539;p=platform%2Fcore%2Fappfw%2Fappcore-widget.git

diff --git a/src/widget_app.c b/src/widget_app.c
index b3c18c5..4c20c2c 100755
--- a/src/widget_app.c
+++ b/src/widget_app.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015 - 2016 Samsung Electronics Co., Ltd All Rights Reserved
+ * Copyright (c) 2015 - 2017 Samsung Electronics Co., Ltd All Rights Reserved
  *
  * Licensed under the Apache License, Version 2.0 (the License);
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,7 @@
 
 
 #include <stdlib.h>
+#include <stdbool.h>
 
 #include <bundle.h>
 #include <bundle_internal.h>
@@ -24,19 +25,16 @@
 #include <glib.h>
 #include <glib-object.h>
 #include <stdlib.h>
-#include <app_control.h>
-#include <app_control_internal.h>
 #include <Elementary.h>
 #include <widget_errno.h>
 #include <widget_instance.h>
-#include <widget_service.h>
-#include <widget_service_internal.h>
 #include <aul_app_com.h>
 #include <Ecore_Wayland.h>
 #include <system_info.h>
 #include <vconf.h>
 #include <vconf-internal-keys.h>
 #include <screen_connector_provider.h>
+#include <appcore_multiwindow_base.h>
 
 #include "widget_app.h"
 #include "widget-log.h"
@@ -47,25 +45,32 @@
 #undef LOG_TAG
 #endif
 
-#define STR_MAX_BUF 128
 #define LOG_TAG "CAPI_WIDGET_APPLICATION"
-#define K_REASON    "__WC_K_REASON__"
-
-typedef enum _widget_obj_state_e {
-	WC_READY = 0,
-	WC_RUNNING = 1,
-	WC_PAUSED = 2,
-	WC_TERMINATED = 3
-} widget_obj_state_e;
-
-enum {
-	UPDATE_LOCAL = 0,
-	UPDATE_ALL = 1,
+#define APP_TYPE_WIDGET "widgetapp"
+#define STATUS_FOREGROUND "fg"
+#define STATUS_BACKGROUND "bg"
+
+struct widget_extra {
+	void *extra;
+	char *instance_id;
+	bundle *args;
+	char *content;
+	Evas_Object *win;
 };
 
-struct app_event_handler {
-	app_event_type_e type;
-	app_event_cb cb;
+struct widget_class_context {
+	widget_instance_lifecycle_callback_s callback;
+	void *data;
+};
+
+struct widget_app_context {
+	widget_app_lifecycle_callback_s callback;
+	void *data;
+	bool dirty;
+};
+
+struct widget_foreach_context {
+	widget_context_cb callback;
 	void *data;
 };
 
@@ -74,39 +79,33 @@ struct app_event_info {
 	void *value;
 };
 
-typedef struct _widget_class widget_class_s;
-
-#define WIDGET_APP_EVENT_MAX 5
-static GList *handler_list[WIDGET_APP_EVENT_MAX] = {NULL, };
-
-static int caller_pid;
-static widget_app_lifecycle_callback_s *app_ops;
-static void *app_user_data;
-static char *appid;
-static widget_class_h class_provider;
-static int exit_called;
-static char *package_id;
-
-static void _widget_core_set_appcore_event_cb(void);
-static void _widget_core_unset_appcore_event_cb(void);
+struct app_event_handler {
+	app_event_type_e type;
+	app_event_cb cb;
+	void *data;
+	void *raw;
+};
 
-static void __free_handler_cb(gpointer data)
-{
-	if (data)
-		free(data);
-}
+struct _widget_context {
+	int dummy;
+};
 
-static void __free_handler_list(void)
-{
-	int i;
+static int __app_event_converter[APPCORE_BASE_EVENT_MAX] = {
+	[APP_EVENT_LOW_MEMORY] = APPCORE_BASE_EVENT_LOW_MEMORY,
+	[APP_EVENT_LOW_BATTERY] = APPCORE_BASE_EVENT_LOW_BATTERY,
+	[APP_EVENT_LANGUAGE_CHANGED] = APPCORE_BASE_EVENT_LANG_CHANGE,
+	[APP_EVENT_DEVICE_ORIENTATION_CHANGED] = APPCORE_BASE_EVENT_DEVICE_ORIENTATION_CHANGED,
+	[APP_EVENT_REGION_FORMAT_CHANGED] = APPCORE_BASE_EVENT_REGION_CHANGE,
+	[APP_EVENT_SUSPENDED_STATE_CHANGED] = APPCORE_BASE_EVENT_SUSPENDED_STATE_CHANGE,
+};
 
-	for (i = 0; i < WIDGET_APP_EVENT_MAX; i++) {
-		g_list_free_full(handler_list[i], __free_handler_cb);
-		handler_list[i] = NULL;
-	}
-}
+static struct widget_app_context __context;
+static char *__appid;
+static char *__package_id;
+static bool __fg_signal;
+char *_viewer_endpoint;
 
-static inline bool _is_widget_feature_enabled(void)
+static bool __is_widget_feature_enabled(void)
 {
 	static bool feature = false;
 	static bool retrieved = false;
@@ -127,52 +126,91 @@ static inline bool _is_widget_feature_enabled(void)
 	return feature;
 }
 
-static gint __comp_by_id(gconstpointer a, gconstpointer b)
+/* LCOV_EXCL_START */
+static void __on_poweroff(keynode_t *key, void *data)
 {
-	widget_context_s *wc = (widget_context_s *)a;
+	int val;
 
-	return strcmp(wc->id, (const char *)b);
+	val = vconf_keynode_get_int(key);
+	switch (val) {
+	case VCONFKEY_SYSMAN_POWER_OFF_DIRECT:
+	case VCONFKEY_SYSMAN_POWER_OFF_RESTART:
+		_I("power off changed: %d", val);
+		widget_app_exit();
+		break;
+	case VCONFKEY_SYSMAN_POWER_OFF_NONE:
+	case VCONFKEY_SYSMAN_POWER_OFF_POPUP:
+	default:
+		/* DO NOTHING */
+		break;
+	}
 }
+/* LCOV_EXCL_STOP */
 
-static widget_context_s *__find_context_by_id(const char *id)
+static int __widget_app_create(void *data)
 {
-	GList *ret;
-	GList *contexts = _widget_app_get_contexts();
+	char pkgid[256] = {0, };
 
-	if (id == NULL)
-		return NULL;
+	appcore_multiwindow_base_on_create();
+	app_get_id(&__appid);
+	if (aul_app_get_pkgid_bypid(getpid(), pkgid, sizeof(pkgid)) == 0)
+		__package_id = strdup(pkgid);
 
-	ret = g_list_find_custom(contexts, id, __comp_by_id);
-	if (ret == NULL)
-		return NULL;
+	if (!__package_id || !__appid) {
+		_E("__package_id is NULL");
+		return -1;
+	}
 
-	return ret->data;
-}
+	screen_connector_provider_init();
+	vconf_notify_key_changed(VCONFKEY_SYSMAN_POWER_OFF_STATUS, __on_poweroff, NULL);
 
-static gint __comp_by_win(gconstpointer a, gconstpointer b)
-{
-	int win = GPOINTER_TO_INT(b);
-	widget_context_s *wc = (widget_context_s *)a;
+	if (__context.callback.create == NULL) {
+		_E("__context.callback.create(is NULL");
+		return -1;
+	}
 
-	return (wc && wc->win_id == win) ? 0 : -1;
+	if (__context.callback.create(__context.data) == NULL) {
+		_E("app_create_cb() returns NULL");
+		return -1;
+	}
+
+	_D("widget app is created");
+	return 0;
 }
 
-static widget_context_s *__find_context_by_win(int win)
+static int __widget_app_terminate(void *data)
 {
-	GList *contexts = _widget_app_get_contexts();
-	GList *ret = g_list_find_custom(contexts, GINT_TO_POINTER(win), __comp_by_win);
+	if (__context.callback.terminate)
+		__context.callback.terminate(__context.data);
 
-	if (ret == NULL)
-		return NULL;
+	vconf_ignore_key_changed(VCONFKEY_SYSMAN_POWER_OFF_STATUS, __on_poweroff);
+	screen_connector_provider_fini();
+
+	if (_viewer_endpoint) {
+		free(_viewer_endpoint);
+		_viewer_endpoint = NULL;
+	}
+
+	if (__package_id) {
+		free(__package_id);
+		__package_id = NULL;
+	}
+
+	if (__appid) {
+		free(__appid);
+		__appid = NULL;
+	}
+
+	appcore_multiwindow_base_on_terminate();
 
-	return ret->data;
+	_D("widget app is terminated");
+	return 0;
 }
 
 static int __send_lifecycle_event(const char *class_id, const char *instance_id,
 	int status)
 {
 	bundle *b = bundle_create();
-	char pkgid[256] = {0, };
 	int ret;
 
 	if (b == NULL) {
@@ -180,17 +218,10 @@ static int __send_lifecycle_event(const char *class_id, const char *instance_id,
 		return -1; /* LCOV_EXCL_LINE */
 	}
 
-	if (package_id == NULL) {
-		ret = aul_app_get_pkgid_bypid(getpid(), pkgid, sizeof(pkgid));
-		if (ret == 0)
-			package_id = strdup(pkgid);
-	}
-
 	bundle_add_str(b, AUL_K_WIDGET_ID, class_id);
 	bundle_add_str(b, AUL_K_WIDGET_INSTANCE_ID, instance_id);
 	bundle_add_byte(b, AUL_K_WIDGET_STATUS, &status, sizeof(int));
-	if (package_id)
-		bundle_add_str(b, AUL_K_PKGID, package_id);
+	bundle_add_str(b, AUL_K_PKGID, __package_id);
 
 	_D("send lifecycle %s(%d)", instance_id, status);
 	ret = aul_app_com_send("widget.status", b);
@@ -209,7 +240,6 @@ static int __send_update_status(const char *class_id, const char *instance_id,
 	int lifecycle = -1;
 	bundle_raw *raw = NULL;
 	int len;
-	char *viewer_endpoint = _widget_app_get_viewer_endpoint();
 
 	b = bundle_create();
 	if (!b) {
@@ -227,8 +257,8 @@ static int __send_update_status(const char *class_id, const char *instance_id,
 		aul_widget_instance_add(class_id, instance_id);
 	}
 
-	_D("send update %s(%d) to %s", instance_id, status, viewer_endpoint);
-	aul_app_com_send(viewer_endpoint, b);
+	_D("send update %s(%d) to %s", instance_id, status, _viewer_endpoint);
+	aul_app_com_send(_viewer_endpoint, b);
 
 	switch (status) {
 	case WIDGET_INSTANCE_EVENT_CREATE:
@@ -255,888 +285,369 @@ static int __send_update_status(const char *class_id, const char *instance_id,
 	return 0;
 }
 
-static int __instance_resume(widget_class_h handle, const char *id, int send_update)
+static void __instance_resume(const char *class_id, const char *id, bundle *b)
 {
-	widget_context_s *wc = __find_context_by_id(id);
-	int ret;
+	appcore_multiwindow_base_instance_h cxt;
 
-	if (!wc) {
-		_E("context not found: %s", id); /* LCOV_EXCL_LINE */
-		return -1; /* LCOV_EXCL_LINE */
-	}
-
-	if (wc->state == WC_RUNNING) {
-		_D("%s is already in running state", id); /* LCOV_EXCL_LINE */
-		return 0; /* LCOV_EXCL_LINE */
-	}
+	cxt = appcore_multiwindow_base_instance_find(id);
 
-	if (wc->state == WC_TERMINATED) {
-		_D("%s is in terminated state", id); /* LCOV_EXCL_LINE */
-		return 0; /* LCOV_EXCL_LINE */
+	if (!cxt) {
+		_E("context not found: %s", id);
+		return;
 	}
 
-	if (handle->ops.resume)
-		handle->ops.resume(wc, handle->user_data);
+	appcore_multiwindow_base_instance_resume(cxt);
 
-	wc->state = WC_RUNNING;
-	_D("%s is resumed", id);
-	if (send_update) {
-		ret = __send_update_status(handle->classid, wc->id,
+	__send_update_status(class_id, id,
 			WIDGET_INSTANCE_EVENT_RESUME, NULL);
-	} else {
-		ret = 0;
-	}
-
-	return ret;
-}
-
-static int __instance_pause(widget_class_h handle, const char *id, int send_update)
-{
-	widget_context_s *wc = __find_context_by_id(id);
-	int ret;
-
-	if (!wc) {
-		_E("context not found: %s", id); /* LCOV_EXCL_LINE */
-		return -1; /* LCOV_EXCL_LINE */
-	}
-
-	if (wc->state == WC_PAUSED) {
-		_D("%s is already in paused state", id); /* LCOV_EXCL_LINE */
-		return 0; /* LCOV_EXCL_LINE */
-	}
-
-	if (wc->state == WC_TERMINATED) {
-		_D("%s is in terminated state", id); /* LCOV_EXCL_LINE */
-		return 0; /* LCOV_EXCL_LINE */
-	}
-
-	if (handle->ops.pause)
-		handle->ops.pause(wc, handle->user_data);
-
-	wc->state = WC_PAUSED;
-	_D("%s is paused", id);
-	if (send_update) {
-		ret = __send_update_status(handle->classid, wc->id,
-			WIDGET_INSTANCE_EVENT_PAUSE, NULL);
-	} else {
-		ret = 0;
-	}
-
-	return ret;
-}
-
-static int __instance_resize(widget_class_h handle, const char *id, int w, int h)
-{
-	widget_context_s *wc = __find_context_by_id(id);
-	int ret;
-
-	if (!wc) {
-		_E("context not found: %s", id); /* LCOV_EXCL_LINE */
-		return -1; /* LCOV_EXCL_LINE */
+	if (!__fg_signal) {
+		_D("Send fg signal to resourceD");
+		aul_send_app_status_change_signal(getpid(),
+				__appid,
+				__package_id,
+				STATUS_FOREGROUND,
+				APP_TYPE_WIDGET);
+		__fg_signal = true;
 	}
-
-	if (handle->ops.resize)
-		handle->ops.resize(wc, w, h, handle->user_data);
-
-	_D("%s is resized to %dx%d", id, w, h);
-	ret = __send_update_status(handle->classid, wc->id,
-		WIDGET_INSTANCE_EVENT_SIZE_CHANGED, NULL);
-
-	return ret;
 }
 
-/* LCOV_EXCL_START */
-static int __instance_update_all(widget_class_h handle, int force, const char *content)
+static void __instance_pause(const char *class_id, const char *id, bundle *b)
 {
-	widget_context_s *wc;
-	int ret = 0;
-	bundle *b = NULL;
-	GList *context = _widget_app_get_contexts();
-
-	if (content)
-		b = bundle_decode((const bundle_raw *)content, strlen(content));
-
-	if (handle->ops.update) {
-		while (context) {
-			wc = (widget_context_s *)context->data;
-			handle->ops.update(wc, b, force, handle->user_data);
-			ret = __send_update_status(handle->classid, wc->id,
-				WIDGET_INSTANCE_EVENT_UPDATE, NULL);
-			_D("updated:%s", wc->id);
-			context = context->next;
-		}
-	}
+	appcore_multiwindow_base_instance_h cxt;
 
-	if (b)
-		bundle_free(b);
+	cxt = appcore_multiwindow_base_instance_find(id);
 
-	return ret;
-}
-/* LCOV_EXCL_STOP */
-
-/* LCOV_EXCL_START */
-static int __instance_update(widget_class_h handle, const char *id, int force, const char *content)
-{
-	widget_context_s *wc = __find_context_by_id(id);
-	int ret = 0;
-	bundle *b = NULL;
-	if (!wc) {
+	if (!cxt) {
 		_E("context not found: %s", id);
-		return -1;
-	}
-
-	if (content)
-		b = bundle_decode((const bundle_raw *)content, strlen(content));
-
-	if (handle->ops.update) {
-		handle->ops.update(wc, b, force, handle->user_data);
-		ret = __send_update_status(handle->classid, wc->id,
-			WIDGET_INSTANCE_EVENT_UPDATE, NULL);
-		_D("updated:%s", id);
-	}
-
-	if (b)
-		bundle_free(b);
-
-	return ret;
-}
-/* LCOV_EXCL_STOP */
-
-static int __instance_create(widget_class_h handle, const char *id, const char *content, int w, int h)
-{
-	widget_context_s *wc = NULL;
-	int ret = 0;
-	bundle *content_info = NULL;
-
-	wc = (widget_context_s *)calloc(1, sizeof(widget_context_s));
-	if (!wc)
-		return WIDGET_ERROR_OUT_OF_MEMORY;
-
-	wc->state = WC_READY;
-	wc->id = strdup(id);
-	wc->provider = handle;
-	wc->win = NULL;
-	wc->win_id = -1;
-
-	if (content) {
-		wc->content = strdup(content);
-		content_info = bundle_decode((const bundle_raw *)content, strlen(content));
-	}
-
-	_widget_app_add_context(wc);
-
-	ret = handle->ops.create(wc, content_info, w, h, handle->user_data);
-	if (ret < 0) {
-		/* TODO send abort */
-	} else {
-		ret = __send_update_status(handle->classid, wc->id,
-			WIDGET_INSTANCE_EVENT_CREATE, NULL);
-
-		if (content == NULL)
-			content = "NULL";
-
-		aul_widget_instance_add(handle->classid, id);
-	}
-
-	if (content_info)
-		bundle_free(content_info);
-
-	return ret;
-}
-
-static int __instance_destroy(widget_class_h handle, const char *id,
-		widget_app_destroy_type_e reason, int send_update)
-{
-	widget_context_s *wc = __find_context_by_id(id);
-	int ret = 0;
-	int event = WIDGET_INSTANCE_EVENT_TERMINATE;
-	bundle *content_info;
-
-	if (!wc) {
-		_E("could not find widget obj: %s, clear amd info", id);	/* LCOV_EXCL_LINE */
-		aul_widget_instance_del(handle->classid, id);			/* LCOV_EXCL_LINE */
-		return WIDGET_ERROR_NONE;					/* LCOV_EXCL_LINE */
-	}
-
-	wc->state = WC_TERMINATED;
-	if (wc->content)
-		content_info = bundle_decode((const bundle_raw *)wc->content, strlen(wc->content));
-	else
-		content_info = bundle_create();
-
-	handle->ops.destroy(wc, reason, content_info,
-			handle->user_data);
-
-	if (reason == WIDGET_APP_DESTROY_TYPE_PERMANENT) {
-		event = WIDGET_INSTANCE_EVENT_DESTROY;
-		aul_widget_instance_del(handle->classid, id);
-	} else {
-		ret = __send_update_status(handle->classid, id,
-				WIDGET_INSTANCE_EVENT_EXTRA_UPDATED, content_info);
-	}
-
-	if (content_info)
-		bundle_free(content_info);
-
-	ret = __send_update_status(handle->classid, id, event, NULL);
-
-	_widget_app_remove_context(wc);
-
-	if (wc->id)
-		free(wc->id);
-
-	if (wc->content)
-		free(wc->content);
-
-	free(wc);
-
-	if (_widget_app_get_contexts() == NULL && !exit_called) /* all instance destroyed */
-		widget_app_exit();
-
-	return ret;
-}
-
-static widget_class_h __find_class_handler(const char *class_id,
-		widget_class_h handle)
-{
-	if (!class_id || !handle)
-		return NULL;
-
-	widget_class_h head = handle;
-
-	while (head) {
-		if (head->classid && strcmp(head->classid, class_id) == 0)
-			return head;
-
-		head = head->next;
+		return;
 	}
 
-	return NULL;
-}
-
-/* LCOV_EXCL_START */
-static void __resize_window(char *id, int w, int h)
-{
-	widget_context_s *wc = __find_context_by_id(id);
+	appcore_multiwindow_base_instance_pause(cxt);
 
-	if (!wc) {
-		_E("can not find instance: %s", id);
-		return;
+	if (__fg_signal) {
+		_D("Send bg signal to resourceD");
+		aul_send_app_status_change_signal(getpid(),
+				__appid,
+				__package_id,
+				STATUS_BACKGROUND,
+				APP_TYPE_WIDGET);
+		__fg_signal = false;
 	}
-
-	if (wc->win)
-		evas_object_resize(wc->win, w, h);
-	else
-		_E("unable to find window of %d", wc->id);
 }
-/* LCOV_EXCL_STOP */
 
-static void __control(bundle *b)
+static void __instance_resize(const char *class_id, const char *id, bundle *b)
 {
-	char *class_id = NULL;
-	char *id = NULL;
-	char *operation = NULL;
-	char *content = NULL;
+	appcore_multiwindow_base_instance_h cxt;
+	struct widget_class_context *class_cxt;
+	const appcore_multiwindow_base_class *cls;
+	struct widget_extra *we;
+	char *remain = NULL;
 	char *w_str = NULL;
 	char *h_str = NULL;
 	int w = 0;
 	int h = 0;
-	char *remain = NULL;
-	int force;
-	char *force_str = NULL;
-	widget_class_h handle = NULL;
 
-	bundle_get_str(b, WIDGET_K_CLASS, &class_id);
-	/* for previous version compatibility, use appid for default class id */
-	if (class_id == NULL)
-		class_id = appid;
-
-	bundle_get_str(b, AUL_K_WIDGET_INSTANCE_ID, &id);
-	bundle_get_str(b, WIDGET_K_OPERATION, &operation);
+	cxt = appcore_multiwindow_base_instance_find(id);
 
-	handle = __find_class_handler(class_id, class_provider);
-	if (!handle) {
-		_E("no handle provided: %s", class_id); /* LCOV_EXCL_LINE */
-		goto error;
+	if (!cxt) {
+		_E("context not found: %s", id);
+		return;
 	}
 
-	if (!operation) {
-		_E("no operation provided");
-		goto error;
-	}
+	cls = appcore_multiwindow_base_instance_get_class(cxt);
+	if (!cls)
+		return;
 
-	bundle_get_str(b, WIDGET_K_FORCE, &force_str);
+	class_cxt = cls->data;
+	if (!class_cxt) {
+		_E("class is NULL");
+		return;
+	}
 
-	if (force_str && strcmp(force_str, "true") == 0)
-		force = 1;
-	else
-		force = 0;
+	we = appcore_multiwindow_base_instance_get_extra(cxt);
+	if (!we) {
+		_E("widget extra is NULL");
+		return;
+	}
 
-	bundle_get_str(b, WIDGET_K_CONTENT_INFO, &content);
 	bundle_get_str(b, WIDGET_K_WIDTH, &w_str);
 	bundle_get_str(b, WIDGET_K_HEIGHT, &h_str);
+
 	if (w_str)
 		w = (int)g_ascii_strtoll(w_str, &remain, 10);
 
 	if (h_str)
 		h = (int)g_ascii_strtoll(h_str, &remain, 10);
 
-	if (strcmp(operation, "create") == 0) {
-		__instance_create(handle, id, content, w, h);
-	} else if (strcmp(operation, "resize") == 0) {
-		__resize_window(id, w, h);
-	} else if (strcmp(operation, "update") == 0) {
-		if (id)
-			__instance_update(handle, id, force, content);
-		else
-			__instance_update_all(handle, force, content);
-
-	} else if (strcmp(operation, "destroy") == 0) {
-		__instance_destroy(handle, id, WIDGET_APP_DESTROY_TYPE_PERMANENT, UPDATE_ALL);
-	} else if (strcmp(operation, "resume") == 0) {
-		__instance_resume(handle, id, UPDATE_ALL);
-	} else if (strcmp(operation, "pause") == 0) {
-		__instance_pause(handle, id, UPDATE_ALL);
-	} else if (strcmp(operation, "terminate") == 0) {
-		__instance_destroy(handle, id, WIDGET_APP_DESTROY_TYPE_TEMPORARY, UPDATE_ALL);
-	}
-
-	return;
-error:
-	LOGD("error on control");
-	return;
-}
-
-static void __pause_all(int send_update)
-{
-	GList *contexts = _widget_app_get_contexts();
-	GList *iter = g_list_first(contexts);
-
-	while (iter != NULL) {
-		widget_context_s *cxt = (widget_context_s *)iter->data;
-
-		switch (cxt->state) {
-		case WC_READY:
-			__instance_resume(cxt->provider, cxt->id, send_update);
-			__instance_pause(cxt->provider, cxt->id, send_update);
-			break;
-		case WC_RUNNING:
-			__instance_pause(cxt->provider, cxt->id, send_update);
-			break;
-		}
-		LOGD("pause %s", cxt->id);
-		iter = g_list_next(iter);
-	}
-}
-
-/* LCOV_EXCL_START */
-static void __resume_all(int send_update)
-{
-	GList *contexts = _widget_app_get_contexts();
-	GList *iter = g_list_first(contexts);
-
-	while (iter != NULL) {
-		widget_context_s *cxt = (widget_context_s *)iter->data;
-
-		switch (cxt->state) {
-		case WC_READY:
-			__instance_resume(cxt->provider, cxt->id, send_update);
-			break;
-		case WC_PAUSED:
-			__instance_resume(cxt->provider, cxt->id, send_update);
-			break;
-		}
-		iter = g_list_next(iter);
-	}
-}
-/* LCOV_EXCL_STOP */
-
-static void __destroy_all(int reason, int send_update)
-{
-	GList *contexts = _widget_app_get_contexts();
-	GList *iter = g_list_first(contexts);
-
-	__pause_all(send_update);
-	while (iter != NULL) {
-		widget_context_s *cxt = (widget_context_s *)iter->data;
-		iter = g_list_next(iter);
-		switch (cxt->state) {
-		case WC_PAUSED:
-			LOGD("destroy %d : %s", cxt->state, cxt->id);
-			__instance_destroy(cxt->provider, cxt->id, reason, send_update);
-			break;
-		}
-	}
-}
-
-
-static Eina_Bool __show_cb(void *data, int type, void *event)
-{
-	Ecore_Wl_Event_Window_Show *ev = event;
-	widget_context_s *cxt = __find_context_by_win(ev->win);
-
-	LOGD("show %d %d", (unsigned int)ev->win, (unsigned int)ev->data[0]);
-
-	if (cxt)
-		__instance_resume(cxt->provider, cxt->id, UPDATE_ALL);
-	else
-		LOGE("unknown window error: %d", ev->win); /* LCOV_EXCL_LINE */
-
-	return ECORE_CALLBACK_RENEW;
-}
-
-static Eina_Bool __hide_cb(void *data, int type, void *event)
-{
-	Ecore_Wl_Event_Window_Hide *ev = event;
-	widget_context_s *cxt = __find_context_by_win(ev->win);
-
-
-	LOGD("hide %d", (unsigned int)ev->win);
-
-	if (cxt)
-		__instance_pause(cxt->provider, cxt->id, UPDATE_ALL);
+	if (we->win)
+		evas_object_resize(we->win, w, h);
 	else
-		LOGE("unknown window error: %d", ev->win); /* LCOV_EXCL_LINE */
-
-	return ECORE_CALLBACK_RENEW;
-}
-
-static Eina_Bool __visibility_cb(void *data, int type, void *event)
-{
-	Ecore_Wl_Event_Window_Visibility_Change *ev = event;
-	widget_context_s *cxt = __find_context_by_win(ev->win);
+		_E("unable to find window of %s", id);
 
-	LOGD("visiblity change: %d %d", (unsigned int)ev->win,  (unsigned int)ev->fully_obscured);
-
-	if (!cxt) {
-		LOGE("unknown window error: %d", ev->win);
-		return ECORE_CALLBACK_RENEW;
-	}
-
-	if (cxt->state == WC_PAUSED && ev->fully_obscured == 0) {
-		__instance_resume(cxt->provider, cxt->id, UPDATE_ALL);
-	} else if (cxt->state == WC_RUNNING && ev->fully_obscured == 1) {
-		__instance_pause(cxt->provider, cxt->id, UPDATE_ALL);
-	} else {
-		LOGD("cxt:%s state:%d obscured:%d", cxt->id, cxt->state, ev->fully_obscured);
-	}
-
-	return ECORE_CALLBACK_RENEW;
-}
-
-/* LCOV_EXCL_START */
-static Eina_Bool __lower_cb(void *data, int type, void *event)
-{
-	LOGD("lower");
-	return ECORE_CALLBACK_RENEW;
-}
-/* LCOV_EXCL_STOP */
-
-static Eina_Bool __configure_cb(void *data, int type, void *event)
-{
-	Ecore_Wl_Event_Window_Configure *ev = event;
-	widget_context_s *cxt = __find_context_by_win(ev->win);
-
-	LOGD("configure: %d %d", ev->w, ev->h);
-
-	if (!cxt) {
-		LOGE("unknown window error: %d", ev->win); /* LCOV_EXCL_LINE */
-		return ECORE_CALLBACK_RENEW; /* LCOV_EXCL_LINE */
-	}
-
-	if (cxt->state == WC_PAUSED || cxt->state == WC_RUNNING)
-		__instance_resize(cxt->provider, cxt->id, ev->w, ev->h);
-	LOGD("cxt:%s resized to %dx%d", cxt->id, ev->w, ev->h);
-
-	return ECORE_CALLBACK_RENEW;
-}
-
-static void __add_climsg()
-{
-	ecore_event_handler_add(ECORE_WL_EVENT_WINDOW_SHOW, __show_cb, NULL);
-	ecore_event_handler_add(ECORE_WL_EVENT_WINDOW_HIDE, __hide_cb, NULL);
-	ecore_event_handler_add(ECORE_WL_EVENT_WINDOW_VISIBILITY_CHANGE, __visibility_cb, NULL);
-	ecore_event_handler_add(ECORE_WL_EVENT_WINDOW_LOWER, __lower_cb, NULL);
-	ecore_event_handler_add(ECORE_WL_EVENT_WINDOW_CONFIGURE, __configure_cb, NULL);
+	if (class_cxt->callback.resize)
+		class_cxt->callback.resize(cxt, w, h, class_cxt->data);
+	_D("%s is resized to %dx%d", id, w, h);
+	__send_update_status(class_id, id,
+		WIDGET_INSTANCE_EVENT_SIZE_CHANGED, NULL);
 }
 
-static void __get_content(bundle *b)
+static void __inst_cb(const char *class_id, const char *id,
+		appcore_multiwindow_base_instance_h cxt, void *data)
 {
-	char *instance_id = NULL;
-	widget_context_s *cxt = NULL;
-
-	bundle_get_str(b, AUL_K_WIDGET_INSTANCE_ID, &instance_id);
-	if (!instance_id)
-		return;
+	struct widget_class_context *class_cxt;
+	const appcore_multiwindow_base_class *cls;
+	bundle *content = NULL;
+	char *content_raw = NULL;
+	char *force_str = NULL;
+	int force;
+	bundle *b = data;
 
-	cxt = __find_context_by_id(instance_id);
-	if (!cxt) {
-		_E("can not find instance id:%s", instance_id);
+	if (!b) {
+		_E("bundle is NULL");
 		return;
 	}
 
-	if (cxt->content) {
-		bundle_add_str(b, AUL_K_WIDGET_CONTENT_INFO, cxt->content);
-		_D("content info of %s found", cxt->id);
-	} else {
-		bundle_add_str(b, AUL_K_WIDGET_CONTENT_INFO, "");
-		_D("empty content info added");
+	cls = appcore_multiwindow_base_instance_get_class(cxt);
+	if (!cls) {
+		_E("class is NULL");
+		return;
 	}
-}
-
-static int __aul_handler(aul_type type, bundle *b, void *data)
-{
-	char *caller = NULL;
-	char *remain = NULL;
-
-	switch (type) {
-	case AUL_START:
-		if (b) {
-			bundle_get_str(b, WIDGET_K_CALLER, &caller);
-			if (caller) {
-				caller_pid = g_ascii_strtoll(caller, &remain,
-						10);
-			} else {
-				/* using caller appid and query pid using caller appid? */
-				_E("no caller pid");
-			}
-		}
 
-		__control(b);
-		break;
-	case AUL_RESUME:
-		__resume_all(UPDATE_ALL);
-		break;
-	case AUL_TERMINATE:
-		widget_app_exit();
-		break;
-	case AUL_WIDGET_CONTENT:
-		__get_content(b);
-		break;
-	default:
-		break;
+	class_cxt = cls->data;
+	if (!class_cxt) {
+		_E("class context is NULL");
+		return;
 	}
 
-	return 0;
-}
-
-static char *__get_domain_name(char *appid)
-{
-	char *name_token;
-
-	if (appid == NULL) {
-		_E("appid is NULL"); /* LCOV_EXCL_LINE */
-		return NULL; /* LCOV_EXCL_LINE */
+	if (!class_cxt->callback.update) {
+		_E("update callback is NULL");
+		return;
 	}
 
-	name_token = strrchr(appid, '.');
-
-	if (name_token == NULL) {
-		_E("appid is invalid"); /* LCOV_EXCL_LINE */
-		return appid; /* LCOV_EXCL_LINE */
-	}
+	bundle_get_str(b, WIDGET_K_FORCE, &force_str);
 
-	name_token++;
+	if (force_str && strcmp(force_str, "true") == 0)
+		force = 1;
+	else
+		force = 0;
 
-	return name_token;
-}
+	bundle_get_str(b, WIDGET_K_CONTENT_INFO, &content_raw);
 
-/* LCOV_EXCL_START */
-static void __on_poweroff(keynode_t *key, void *data)
-{
-	int val;
+	if (content_raw)
+		content = bundle_decode((const bundle_raw *)content_raw, strlen(content_raw));
+	class_cxt->callback.update(cxt, content, force, class_cxt->data);
+	__send_update_status(class_id, id,
+		WIDGET_INSTANCE_EVENT_UPDATE, NULL);
+	_D("updated:%s", id);
 
-	val = vconf_keynode_get_int(key);
-	switch (val) {
-	case VCONFKEY_SYSMAN_POWER_OFF_DIRECT:
-	case VCONFKEY_SYSMAN_POWER_OFF_RESTART:
-		_I("power off changed: %d", val);
-		widget_app_exit();
-		break;
-	case VCONFKEY_SYSMAN_POWER_OFF_NONE:
-	case VCONFKEY_SYSMAN_POWER_OFF_POPUP:
-	default:
-		/* DO NOTHING */
-		break;
-	}
+	if (content)
+		bundle_free(content);
 }
-/* LCOV_EXCL_STOP */
 
-extern int _set_i18n(const char *name);
-
-static int __before_loop(int argc, char **argv)
+static void __instance_update(const char *class_id, const char *id, bundle *b)
 {
-	int r;
-	bundle *kb = NULL;
-	char *name;
-	char *viewer_endpoint = NULL;
-
-#if !(GLIB_CHECK_VERSION(2, 36, 0))
-	g_type_init();
-#endif
-
-	kb = bundle_import_from_argv(argc, argv);
-	if (kb) {
-		bundle_get_str(kb, WIDGET_K_ENDPOINT, &viewer_endpoint);
-		if (viewer_endpoint) {
-			_E("viewer endpoint :%s", viewer_endpoint);
-			_widget_app_set_viewer_endpoint(viewer_endpoint);
-		} else {
-			_E("endpoint is missing");
-		}
-
-		bundle_free(kb);
-		kb = NULL;
-	} else {
-		_E("failed to get launch argv"); /* LCOV_EXCL_LINE */
-	}
-
-	screen_connector_provider_init();
-	elm_init(argc, argv);
+	appcore_multiwindow_base_instance_h cxt;
 
-	r = aul_launch_init(__aul_handler, NULL);
-	if (r < 0) {
-		/* LCOV_EXCL_START */
-		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
-				__FUNCTION__,
-				"Fail to call the aul_launch_init");
-		/* LCOV_EXCL_STOP */
-	}
-
-	r = aul_launch_argv_handler(argc, argv);
-	if (r < 0) {
-		/* LCOV_EXCL_START */
-		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
-				__FUNCTION__,
-				"Fail to call the aul_launch_argv_handler");
-		/* LCOV_EXCL_STOP */
-	}
-
-	r = app_get_id(&appid);
-	if (r != APP_ERROR_NONE)
-		return r;
-
-	name = __get_domain_name(appid);
-
-	if (name == NULL) {
-		/* LCOV_EXCL_START */
-		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
-				__FUNCTION__,
-				"Fail to call __get_domain_name");
-		/* LCOV_EXCL_STOP */
-	}
-
-	r = _set_i18n(name);
-
-	if (r < 0) {
-		/* LCOV_EXCL_START */
-		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
-				__FUNCTION__,
-				"Fail to call _set_i18n");
-		/* LCOV_EXCL_STOP */
+	if (!id) {
+		appcore_multiwindow_base_instance_foreach(class_id, __inst_cb, b);
+		return;
 	}
 
-	__add_climsg();
-
-	_widget_core_set_appcore_event_cb();
+	cxt = appcore_multiwindow_base_instance_find(id);
 
-	class_provider = app_ops->create(app_user_data);
-	if (class_provider == NULL) {
-		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
-				__FUNCTION__, "widget_class is NULL");
+	if (!cxt) {
+		_E("context not found: %s", id);
+		return;
 	}
 
-	vconf_notify_key_changed(VCONFKEY_SYSMAN_POWER_OFF_STATUS, __on_poweroff, NULL);
-
-	return WIDGET_ERROR_NONE;
+	__inst_cb(class_id, id, cxt, b);
 }
 
-static void __after_loop()
+static void __instance_create(const char *class_id, const char *id, bundle *b)
 {
-	exit_called = 1;
-	vconf_ignore_key_changed(VCONFKEY_SYSMAN_POWER_OFF_STATUS, __on_poweroff);
-
-	__pause_all(UPDATE_LOCAL);
-	__destroy_all(WIDGET_APP_DESTROY_TYPE_TEMPORARY, UPDATE_ALL);
-
-	if (app_ops->terminate)
-		app_ops->terminate(app_user_data);
-
-	screen_connector_provider_fini();
-
-	_widget_app_free_viewer_endpoint();
-	_widget_core_unset_appcore_event_cb();
-	__free_handler_list();
-
-	if (package_id) {
-		free(package_id);
-		package_id = NULL;
-	}
+	struct widget_extra *we;
+	char *content = NULL;
 
-	if (appid) {
-		free(appid);
-		appid = NULL;
+	we = (struct widget_extra *)calloc(1, sizeof(struct widget_extra));
+	if (!we) {
+		_E("Out of memory");
+		return;
 	}
 
-	elm_shutdown();
-}
-
-static void __on_low_memory(keynode_t *key, void *data)
-{
-	int val;
-
-	val = vconf_keynode_get_int(key);
-	if (val == VCONFKEY_SYSMAN_LOW_MEMORY_SOFT_WARNING) {
-		app_event_handler_h handler;
-		struct app_event_info event;
-
-		_I("widget_app_low_memory");
-
-		event.type = APP_EVENT_LOW_MEMORY;
-		event.value = (void *)&val;
-
-		GList *iter = g_list_first(handler_list[APP_EVENT_LOW_MEMORY]);
+	we->instance_id = strdup(id);
+	we->args = b;
+	appcore_multiwindow_base_instance_run(class_id, id, we);
+	we->args = NULL;
+	we->win = NULL;
+	bundle_get_str(b, WIDGET_K_CONTENT_INFO, &content);
+	if (content)
+		we->content = strdup(content);
 
-		while (iter) {
-			handler = (app_event_handler_h) iter->data;
-			handler->cb(&event, handler->data);
-			iter = g_list_next(iter);
-		}
-	}
 }
 
-static void __on_low_battery(keynode_t *key, void *data)
+static void __check_empty_instance(void)
 {
-	int val;
-
-	val = vconf_keynode_get_int(key);
-	if (val <= VCONFKEY_SYSMAN_BAT_CRITICAL_LOW) {
-		app_event_handler_h handler;
-		struct app_event_info event;
-
-		_I("widget_app_low_battery");
+	int cnt = appcore_multiwindow_base_instance_get_cnt();
 
-		event.type = APP_EVENT_LOW_BATTERY;
-		event.value = (void *)&val;
+	if (cnt == 0)
+		widget_app_exit();
+}
 
-		GList *iter = g_list_first(handler_list[APP_EVENT_LOW_BATTERY]);
+static void __instance_destroy(const char *class_id, const char *id, bundle *b)
+{
+	appcore_multiwindow_base_instance_h cxt;
+	struct widget_extra *we;
 
-		while (iter) {
-			handler = (app_event_handler_h) iter->data;
-			handler->cb(&event, handler->data);
-			iter = g_list_next(iter);
-		}
+	cxt = appcore_multiwindow_base_instance_find(id);
+	if (!cxt) {
+		_E("could not find widget obj: %s, clear amd info", id);
+		aul_widget_instance_del(class_id, id);
+		return;
 	}
+
+	we = appcore_multiwindow_base_instance_get_extra(cxt);
+	we->args = b;
+	appcore_multiwindow_base_instance_exit(cxt);
+	free(we->instance_id);
+	free(we->content);
+	free(we);
+	__check_empty_instance();
 }
 
-static void __on_lang_changed(keynode_t *key, void *data)
+static int __widget_app_control(bundle *b, void *data)
 {
-	char *val;
-
-	_update_lang();
-	val = vconf_keynode_get_str(key);
+	char *class_id = NULL;
+	char *id = NULL;
+	char *operation = NULL;
 
-	app_event_handler_h handler;
-	struct app_event_info event;
+	appcore_multiwindow_base_on_control(b);
 
-	_I("widget_app_lang_changed");
+	bundle_get_str(b, WIDGET_K_CLASS, &class_id);
+	/* for previous version compatibility, use appid for default class id */
+	if (class_id == NULL)
+		class_id = __appid;
 
-	event.type = APP_EVENT_LANGUAGE_CHANGED;
-	event.value = (void *)val;
+	bundle_get_str(b, AUL_K_WIDGET_INSTANCE_ID, &id);
+	bundle_get_str(b, WIDGET_K_OPERATION, &operation);
 
-	GList *iter = g_list_first(handler_list[APP_EVENT_LANGUAGE_CHANGED]);
+	if (!operation) {
+		_E("operation is NULL");
+		return 0;
+	}
 
-	while (iter) {
-		handler = (app_event_handler_h) iter->data;
-		handler->cb(&event, handler->data);
-		iter = g_list_next(iter);
+	if (strcmp(operation, "create") == 0) {
+		__instance_create(class_id, id, b);
+	} else if (strcmp(operation, "resize") == 0) {
+		__instance_resize(class_id, id, b);
+	} else if (strcmp(operation, "update") == 0) {
+		__instance_update(class_id, id, b);
+	} else if (strcmp(operation, "destroy") == 0) {
+		__instance_destroy(class_id, id, b);
+	} else if (strcmp(operation, "resume") == 0) {
+		__instance_resume(class_id, id, b);
+	} else if (strcmp(operation, "pause") == 0) {
+		__instance_pause(class_id, id, b);
+	} else if (strcmp(operation, "terminate") == 0) {
+		__instance_destroy(class_id, id, b);
 	}
+
+	return 0;
 }
 
-static void __on_region_changed(keynode_t *key, void *data)
+static void __inst_resume_cb(const char *class_id, const char *id,
+		appcore_multiwindow_base_instance_h cxt, void *data)
 {
-	char *val;
-
-	_update_region();
-	val = vconf_keynode_get_str(key);
+	__instance_resume(class_id, id, data);
+}
 
-	app_event_handler_h handler;
-	struct app_event_info event;
+static void __get_content(bundle *b)
+{
+	char *instance_id = NULL;
+	appcore_multiwindow_base_instance_h cxt;
+	struct widget_extra *we;
 
-	_I("widget_app_region_changed");
+	bundle_get_str(b, AUL_K_WIDGET_INSTANCE_ID, &instance_id);
+	if (!instance_id) {
+		_E("instance id is NULL");
+		return;
+	}
 
-	event.type = APP_EVENT_REGION_FORMAT_CHANGED;
-	event.value = (void *)val;
+	cxt = appcore_multiwindow_base_instance_find(instance_id);
+	if (!cxt) {
+		_E("could not find widget obj: %s", instance_id);
+		return;
+	}
 
-	GList *iter = g_list_first(handler_list[APP_EVENT_REGION_FORMAT_CHANGED]);
+	we = appcore_multiwindow_base_instance_get_extra(cxt);
+	if (!we) {
+		_E("widget extra is NULL");
+		return;
+	}
 
-	while (iter) {
-		handler = (app_event_handler_h) iter->data;
-		handler->cb(&event, handler->data);
-		iter = g_list_next(iter);
+	if (we->content) {
+		bundle_add_str(b, AUL_K_WIDGET_CONTENT_INFO, we->content);
+		_D("content info of %s found", instance_id);
+	} else {
+		bundle_add_str(b, AUL_K_WIDGET_CONTENT_INFO, "");
+		_D("empty content info added");
 	}
 }
 
-static void __register_event(int event_type)
+static int __widget_app_receive(aul_type type, bundle *b, void *data)
 {
-	switch (event_type) {
-	case APP_EVENT_LOW_MEMORY:
-		vconf_notify_key_changed(VCONFKEY_SYSMAN_LOW_MEMORY, __on_low_memory, NULL);
-		break;
+	appcore_multiwindow_base_on_receive(type, b);
 
-	case APP_EVENT_LOW_BATTERY:
-		vconf_notify_key_changed(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, __on_low_battery, NULL);
+	switch (type) {
+	case AUL_RESUME:
+		appcore_multiwindow_base_instance_foreach_full(__inst_resume_cb, b);
 		break;
-
-	case APP_EVENT_LANGUAGE_CHANGED:
-		vconf_notify_key_changed(VCONFKEY_LANGSET, __on_lang_changed, NULL);
+	case AUL_TERMINATE:
+		widget_app_exit();
 		break;
-
-	case APP_EVENT_REGION_FORMAT_CHANGED:
-		vconf_notify_key_changed(VCONFKEY_REGIONFORMAT, __on_region_changed, NULL);
+	case AUL_WIDGET_CONTENT:
+		__get_content(b);
+		break;
+	default:
 		break;
 	}
+
+	return 0;
 }
 
-static void __unregister_event(int event_type)
+static int __widget_app_init(int argc, char **argv, void *data)
 {
-	switch (event_type) {
-	case APP_EVENT_LOW_MEMORY:
-		vconf_ignore_key_changed(VCONFKEY_SYSMAN_LOW_MEMORY, __on_low_memory);
-		break;
-
-	case APP_EVENT_LOW_BATTERY:
-		vconf_ignore_key_changed(VCONFKEY_SYSMAN_BATTERY_STATUS_LOW, __on_low_battery);
-		break;
+	elm_init(argc, argv);
+	return 0;
+}
 
-	case APP_EVENT_LANGUAGE_CHANGED:
-		vconf_ignore_key_changed(VCONFKEY_LANGSET, __on_lang_changed);
-		break;
+static void __widget_app_finish(void)
+{
+	elm_shutdown();
 
-	case APP_EVENT_REGION_FORMAT_CHANGED:
-		vconf_ignore_key_changed(VCONFKEY_REGIONFORMAT, __on_region_changed);
-		break;
+	/* Check Loader case */
+	if (getenv("AUL_LOADER_INIT")) {
+		unsetenv("AUL_LOADER_INIT");
+		elm_shutdown();
 	}
 }
 
-static void _widget_core_set_appcore_event_cb(void)
+static void __widget_app_run(void *data)
 {
-	__register_event(APP_EVENT_LANGUAGE_CHANGED);
-	__register_event(APP_EVENT_REGION_FORMAT_CHANGED);
+	elm_run();
 }
 
-static void _widget_core_unset_appcore_event_cb(void)
+static void __widget_app_exit(void *data)
 {
-	__unregister_event(APP_EVENT_LANGUAGE_CHANGED);
-	__unregister_event(APP_EVENT_REGION_FORMAT_CHANGED);
+	elm_exit();
 }
 
 EXPORT_API int widget_app_main(int argc, char **argv,
 		widget_app_lifecycle_callback_s *callback, void *user_data)
 {
-	int r;
+	bundle *kb;
+	char *viewer_endpoint = NULL;
 
-	if (!_is_widget_feature_enabled()) {
+	if (!__is_widget_feature_enabled()) {
 		_E("not supported"); /* LCOV_EXCL_LINE */
 		return WIDGET_ERROR_NOT_SUPPORTED; /* LCOV_EXCL_LINE */
 	}
@@ -1145,74 +656,99 @@ EXPORT_API int widget_app_main(int argc, char **argv,
 		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
 				__FUNCTION__, NULL);
 
+	if (__context.dirty) {
+		_E("Already started");
+		return widget_app_error(WIDGET_ERROR_FAULT, __FUNCTION__, NULL);
+	}
+
 	if (callback->create == NULL)
 		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
 				__FUNCTION__,
 				"widget_app_create_cb() callback must be "
 				"registered");
-	app_ops = callback;
-	app_user_data = user_data;
-	r = __before_loop(argc, argv);
-	if (r < 0) {
-		if (appid) {
-			free(appid);
-			appid = NULL;
+
+	appcore_multiwindow_base_ops ops = appcore_multiwindow_base_get_default_ops();
+
+	/* override methods */
+	ops.base.create = __widget_app_create;
+	ops.base.control = __widget_app_control;
+	ops.base.terminate = __widget_app_terminate;
+	ops.base.receive = __widget_app_receive;
+	ops.base.init = __widget_app_init;
+	ops.base.finish = __widget_app_finish;
+	ops.base.run = __widget_app_run;
+	ops.base.exit = __widget_app_exit;
+
+	__context.callback = *callback;
+	__context.data = user_data;
+	kb = bundle_import_from_argv(argc, argv);
+	if (kb) {
+		bundle_get_str(kb, WIDGET_K_ENDPOINT, &viewer_endpoint);
+		if (viewer_endpoint) {
+			_D("viewer endpoint :%s", viewer_endpoint);
+			_viewer_endpoint = strdup(viewer_endpoint);
+		} else {
+			_E("endpoint is missing");
 		}
-		return r;
+
+		bundle_free(kb);
+	} else {
+		_E("failed to get launch argv"); /* LCOV_EXCL_LINE */
+		return widget_app_error(WIDGET_ERROR_FAULT, __FUNCTION__, NULL);
 	}
 
-	ecore_main_loop_begin();
-	aul_status_update(STATUS_DYING);
-	__after_loop();
+	__context.dirty = true;
+	appcore_multiwindow_base_init(ops, argc, argv, NULL);
+	appcore_multiwindow_base_fini();
+	__context.dirty = false;
 
 	return WIDGET_ERROR_NONE;
 }
 
 EXPORT_API int widget_app_exit(void)
 {
-	if (!_is_widget_feature_enabled()) {
+	if (!__is_widget_feature_enabled()) {
 		_E("not supported"); /* LCOV_EXCL_LINE */
 		return WIDGET_ERROR_NOT_SUPPORTED; /* LCOV_EXCL_LINE */
 	}
 
-	if (exit_called)
-		return WIDGET_ERROR_NONE;
-
-	exit_called = 1;
-
-	ecore_main_loop_quit();
+	appcore_multiwindow_base_exit();
+	aul_widget_notify_exit();
 
 	return WIDGET_ERROR_NONE;
 }
 
-/* LCOV_EXCL_START */
 static gboolean __finish_event_cb(gpointer user_data)
 {
-	if (user_data == NULL)
+	appcore_multiwindow_base_instance_h cxt = user_data;
+	bundle *b;
+	const char *id;
+	const char *class_id;
+
+	if (!cxt) {
+		_E("user_data is NULL");
 		return FALSE;
+	}
 
-	widget_context_s *wc = (widget_context_s *)user_data;
+	id = appcore_multiwindow_base_instance_get_id(cxt);
+	class_id = appcore_multiwindow_base_instance_get_class_id(cxt);
+	b = bundle_create();
 
-	switch (wc->state) {
-	case WC_READY:
-		__instance_resume(wc->provider, wc->id, UPDATE_LOCAL);
-	case WC_RUNNING:
-		__instance_pause(wc->provider, wc->id, UPDATE_LOCAL);
-	case WC_PAUSED:
-		__instance_destroy(wc->provider, wc->id,
-				WIDGET_DESTROY_TYPE_TEMPORARY, UPDATE_ALL);
-		break;
-	default:
-		break;
+	if (!b) {
+		_E("Out-of-memory");
+		return FALSE;
 	}
 
+	bundle_add_str(b, WIDGET_K_OPERATION, "terminate");
+	__instance_destroy(class_id, id, b);
+	bundle_free(b);
+
 	return FALSE;
 }
-/* LCOV_EXCL_STOP */
 
 EXPORT_API int widget_app_terminate_context(widget_context_h context)
 {
-	if (!_is_widget_feature_enabled()) {
+	if (!__is_widget_feature_enabled()) {
 		_E("not supported"); /* LCOV_EXCL_LINE */
 		return WIDGET_ERROR_NOT_SUPPORTED; /* LCOV_EXCL_LINE */
 	}
@@ -1225,40 +761,61 @@ EXPORT_API int widget_app_terminate_context(widget_context_h context)
 	return WIDGET_ERROR_NONE;
 }
 
+static void __inst_full_cb(const char *class_id, const char *id,
+		appcore_multiwindow_base_instance_h cxt, void *data)
+{
+	struct widget_foreach_context *foreach_context = data;
+
+	if (!data)
+		return;
+
+	if (foreach_context->callback)
+		foreach_context->callback(cxt, foreach_context->data);
+}
+
 EXPORT_API int widget_app_foreach_context(widget_context_cb cb, void *data)
 {
-	GList *contexts = _widget_app_get_contexts();
-	GList *list;
-	widget_context_s *wc;
+	struct widget_foreach_context foreach_context;
 
-	if (!_is_widget_feature_enabled()) {
+	if (!__is_widget_feature_enabled()) {
 		_E("not supported"); /* LCOV_EXCL_LINE */
 		return WIDGET_ERROR_NOT_SUPPORTED; /* LCOV_EXCL_LINE */
 	}
 
-	if (!cb)
+	if (!cb) {
+		_E("callback is NULL");
 		return WIDGET_ERROR_INVALID_PARAMETER;
-
-	list = g_list_first(contexts);
-
-	while (list) {
-		wc = (widget_context_s *)list->data;
-		if (wc) {
-			if (!cb(wc, data))
-				break;
-		}
-		list = list->next;
 	}
 
+	foreach_context.callback = cb;
+	foreach_context.data = data;
+	appcore_multiwindow_base_instance_foreach_full(__inst_full_cb, &foreach_context);
+
 	return WIDGET_ERROR_NONE;
 }
 
+int __event_cb(void *event, void *data)
+{
+	app_event_handler_h handler = data;
+
+	struct app_event_info app_event;
+
+	app_event.type = handler->type;
+	app_event.value = event;
+
+	if (handler->cb)
+		handler->cb(&app_event, handler->data);
+
+	return 0;
+}
+
 EXPORT_API int widget_app_add_event_handler(app_event_handler_h *event_handler,
 					app_event_type_e event_type, app_event_cb callback,
 					void *user_data)
 {
 	int r;
 	bool feature;
+	app_event_handler_h handler;
 
 	r = system_info_get_platform_bool(FEATURE_SHELL_APPWIDGET, &feature);
 	if (r < 0)
@@ -1267,8 +824,6 @@ EXPORT_API int widget_app_add_event_handler(app_event_handler_h *event_handler,
 	if (!feature)
 		return WIDGET_ERROR_NOT_SUPPORTED;
 
-	app_event_handler_h handler;
-
 	if (event_handler == NULL || callback == NULL)
 		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 
@@ -1279,29 +834,15 @@ EXPORT_API int widget_app_add_event_handler(app_event_handler_h *event_handler,
 	if (event_type == APP_EVENT_DEVICE_ORIENTATION_CHANGED)
 		return widget_app_error(WIDGET_ERROR_NOT_SUPPORTED, __FUNCTION__, NULL);
 
-	GList *iter = g_list_first(handler_list[event_type]);
-
-	while (iter) {
-		handler = (app_event_handler_h) iter->data;
-
-		if (handler->cb == callback)
-			return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
-
-		iter = g_list_next(iter);
-	}
 
 	handler = calloc(1, sizeof(struct app_event_handler));
 	if (!handler)
-		return widget_app_error(WIDGET_ERROR_OUT_OF_MEMORY, __FUNCTION__, NULL); /* LCOV_EXCL_LINE */
-
-	if (g_list_length(handler_list[event_type]) == 0)
-		__register_event(event_type);
+		return widget_app_error(WIDGET_ERROR_OUT_OF_MEMORY, __FUNCTION__, "failed to create handler");
 
 	handler->type = event_type;
 	handler->cb = callback;
 	handler->data = user_data;
-	handler_list[event_type] = g_list_append(handler_list[event_type], handler);
-
+	handler->raw = appcore_base_add_event(__app_event_converter[event_type], __event_cb, handler);
 	*event_handler = handler;
 
 	return WIDGET_ERROR_NONE;
@@ -1329,18 +870,18 @@ EXPORT_API int widget_app_remove_event_handler(app_event_handler_h
 	if (type < APP_EVENT_LOW_MEMORY || type > APP_EVENT_REGION_FORMAT_CHANGED)
 		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
 
-	handler_list[type] = g_list_remove(handler_list[type], event_handler);
-	free(event_handler);
+	r = appcore_base_remove_event(event_handler->raw);
+	if (r < 0)
+		return widget_app_error(APP_ERROR_INVALID_PARAMETER, __FUNCTION__, "invalid raw handler");
 
-	if (g_list_length(handler_list[type]) == 0)
-		__unregister_event(type);
+	free(event_handler);
 
 	return WIDGET_ERROR_NONE;
 }
 
 EXPORT_API const char *widget_app_get_id(widget_context_h context)
 {
-	if (!_is_widget_feature_enabled()) {
+	if (!__is_widget_feature_enabled()) {
 		_E("not supported"); /* LCOV_EXCL_LINE */
 		set_last_result(WIDGET_ERROR_NOT_SUPPORTED); /* LCOV_EXCL_LINE */
 		return NULL; /* LCOV_EXCL_LINE */
@@ -1352,12 +893,11 @@ EXPORT_API const char *widget_app_get_id(widget_context_h context)
 	}
 
 	set_last_result(WIDGET_ERROR_NONE);
-	return context->id;
+	return appcore_multiwindow_base_instance_get_id(context);
 }
 
-static void _win_del_cb(void *data, Evas *e, Evas_Object *obj, void *event_info)
+static void __win_del_cb(void *data, Evas *e, Evas_Object *obj, void *event_info)
 {
-       /* Remove data used in accessibility */
 	char *plug_id;
 	plug_id = evas_object_data_del(obj, "___PLUGID");
 	free(plug_id);
@@ -1366,14 +906,17 @@ static void _win_del_cb(void *data, Evas *e, Evas_Object *obj, void *event_info)
 EXPORT_API int widget_app_get_elm_win(widget_context_h context,
 					Evas_Object **win)
 {
-	widget_context_s *cxt = (widget_context_s *)context;
 	Evas_Object *ret_win;
 	Ecore_Wl_Window *wl_win;
 	struct wl_surface *surface;
+	struct widget_extra *we;
 	char buffer[256];
 	int rots[3] = {0};
+	int win_id;
+	const char *id;
+	appcore_multiwindow_base_instance_h cxt;
 
-	if (!_is_widget_feature_enabled()) {
+	if (!__is_widget_feature_enabled()) {
 		_E("not supported"); /* LCOV_EXCL_LINE */
 		return WIDGET_ERROR_NOT_SUPPORTED; /* LCOV_EXCL_LINE */
 	}
@@ -1382,7 +925,9 @@ EXPORT_API int widget_app_get_elm_win(widget_context_h context,
 		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
 				__FUNCTION__, NULL);
 
-	ret_win = elm_win_add(NULL, cxt->id, ELM_WIN_BASIC);
+	cxt = (appcore_multiwindow_base_instance_h)context;
+	id = appcore_multiwindow_base_instance_get_id(cxt);
+	ret_win = elm_win_add(NULL, id, ELM_WIN_BASIC);
 	if (ret_win == NULL) {
 		_E("failed to create window"); /* LCOV_EXCL_LINE */
 		goto fault; /* LCOV_EXCL_LINE */
@@ -1402,21 +947,23 @@ EXPORT_API int widget_app_get_elm_win(widget_context_h context,
 		_E("failed to get surface"); /* LCOV_EXCL_LINE */
 		goto fault; /* LCOV_EXCL_LINE */
 	}
-	screen_connector_provider_remote_enable(cxt->id, surface);
+	screen_connector_provider_remote_enable(id, surface);
 
-	ecore_wl_window_class_name_set(wl_win, cxt->id);
+	ecore_wl_window_class_name_set(wl_win, id);
 	elm_win_aux_hint_add(ret_win, "wm.policy.win.user.geometry", "1");
 
 	*win = ret_win;
-	cxt->win = ret_win;
-	cxt->win_id = ecore_wl_window_id_get(wl_win);
+	we  = appcore_multiwindow_base_instance_get_extra(cxt);
+	we->win = ret_win;
+	win_id = ecore_wl_window_id_get(wl_win);
 
 	/* Set data to use in accessibility */
-	snprintf(buffer, sizeof(buffer), "%s:%d", cxt->id, getpid());
+	snprintf(buffer, sizeof(buffer), "%s:%d", id, getpid());
 	evas_object_data_set(ret_win, "___PLUGID", strdup(buffer));
-	evas_object_event_callback_add(ret_win, EVAS_CALLBACK_DEL, _win_del_cb, NULL);
+	evas_object_event_callback_add(ret_win, EVAS_CALLBACK_DEL, __win_del_cb, NULL);
+	appcore_multiwindow_base_window_bind(cxt, wl_win);
 
-	_D("window created: %d", cxt->win_id);
+	_D("window created: %d", win_id);
 
 	return WIDGET_ERROR_NONE;
 
@@ -1425,88 +972,264 @@ fault:
 		evas_object_del(ret_win); /* LCOV_EXCL_LINE */
 
 	return WIDGET_ERROR_FAULT; /* LCOV_EXCL_LINE */
+}
 
+static void __instance_drop(appcore_multiwindow_base_instance_h cxt)
+{
+	struct widget_extra *we;
+
+	we = appcore_multiwindow_base_instance_get_extra(cxt);
+	appcore_multiwindow_base_instance_drop(cxt);
+	free(we->instance_id);
+	free(we->content);
+	free(we);
+	__check_empty_instance();
 }
 
-widget_class_h _widget_class_create(widget_class_s *prev, const char *class_id,
-		widget_instance_lifecycle_callback_s callback, void *user_data)
+static void __stub_create(appcore_multiwindow_base_instance_h context, void *data)
 {
-	widget_class_s *wc;
+	struct widget_class_context *cxt  = data;
+	struct widget_extra *we;
+	bundle *b;
+	bundle *content_info = NULL;
+	char *id = NULL;
+	char *class_id = NULL;
+	char *operation = NULL;
+	char *content = NULL;
+	char *w_str = NULL;
+	char *h_str = NULL;
+	char *remain = NULL;
+	int w = 0;
+	int h = 0;
+	int ret = -1;
 
-	if (!_is_widget_feature_enabled()) {
-		_E("not supported"); /* LCOV_EXCL_LINE */
-		set_last_result(WIDGET_ERROR_NOT_SUPPORTED); /* LCOV_EXCL_LINE */
-		return NULL;
+	appcore_multiwindow_base_class_on_create(context);
+	we  = appcore_multiwindow_base_instance_get_extra((appcore_multiwindow_base_instance_h)context);
+	b = we->args;
+
+	bundle_get_str(b, WIDGET_K_CLASS, &class_id);
+	/* for previous version compatibility, use appid for default class id */
+	if (class_id == NULL)
+		class_id = __appid;
+
+	bundle_get_str(b, AUL_K_WIDGET_INSTANCE_ID, &id);
+	bundle_get_str(b, WIDGET_K_OPERATION, &operation);
+
+	if (!operation) {
+		_E("no operation provided");
+		return;
 	}
 
-	if (class_id == NULL) {
-		set_last_result(WIDGET_ERROR_INVALID_PARAMETER);
-		return NULL;
+	bundle_get_str(b, WIDGET_K_CONTENT_INFO, &content);
+	bundle_get_str(b, WIDGET_K_WIDTH, &w_str);
+	bundle_get_str(b, WIDGET_K_HEIGHT, &h_str);
+
+	if (w_str)
+		w = (int)g_ascii_strtoll(w_str, &remain, 10);
+
+	if (h_str)
+		h = (int)g_ascii_strtoll(h_str, &remain, 10);
+
+	if (content)
+		content_info = bundle_decode((const bundle_raw *)content, strlen(content));
+
+	if (cxt->callback.create)
+		ret = cxt->callback.create(context, content_info, w, h, cxt->data);
+	_D("%s is created %d", id);
+
+	if (ret < 0) {
+		_W("Create callback returns error(%d)", ret);
+		ret = __send_update_status(class_id, id,
+				WIDGET_INSTANCE_EVENT_CREATE_ABORTED, NULL);
+		__instance_drop(context);
+	} else {
+		ret = __send_update_status(class_id, id,
+			WIDGET_INSTANCE_EVENT_CREATE, NULL);
+
+		aul_widget_instance_add(class_id, id);
 	}
 
-	wc = (widget_class_s *)calloc(1, sizeof(widget_class_s));
-	if (wc == NULL) {
-		_E("failed to calloc : %s", __FUNCTION__); /* LCOV_EXCL_LINE */
-		set_last_result(WIDGET_ERROR_OUT_OF_MEMORY); /* LCOV_EXCL_LINE */
-		return NULL; /* LCOV_EXCL_LINE */
+	if (content_info)
+		bundle_free(content_info);
+}
+
+static void __stub_terminate(appcore_multiwindow_base_instance_h context, void *data)
+{
+	struct widget_class_context *class_cxt  = data;
+	struct widget_extra *we;
+	bundle *b;
+	char *operation = NULL;
+	bundle *content_info;
+	widget_app_destroy_type_e reason = WIDGET_APP_DESTROY_TYPE_TEMPORARY;
+	int event = WIDGET_INSTANCE_EVENT_TERMINATE;
+	const char *id;
+	const char *class_id;
+
+	id = appcore_multiwindow_base_instance_get_id(context);
+	class_id = appcore_multiwindow_base_instance_get_class_id(context);
+	we  = appcore_multiwindow_base_instance_get_extra((appcore_multiwindow_base_instance_h)context);
+	b = we->args;
+
+	if (b) {
+		bundle_get_str(b, WIDGET_K_OPERATION, &operation);
+		if (operation && strcmp(operation, "destroy") == 0)
+			reason = WIDGET_APP_DESTROY_TYPE_PERMANENT;
 	}
 
-	wc->classid = strdup(class_id);
-	wc->user_data = user_data;
-	wc->ops = callback;
-	wc->next = prev;
-	wc->prev = NULL;
+	if (we->content)
+		content_info = bundle_decode((const bundle_raw *)we->content, strlen(we->content));
+	else
+		content_info = bundle_create();
+
+	if (class_cxt->callback.destroy)
+		class_cxt->callback.destroy(context, reason, content_info, class_cxt->data);
+	_D("%s is destroyed %d", id, reason);
 
-	set_last_result(WIDGET_ERROR_NONE);
+	if (reason == WIDGET_APP_DESTROY_TYPE_PERMANENT) {
+		event = WIDGET_INSTANCE_EVENT_DESTROY;
+		aul_widget_instance_del(class_id, id);
+	} else {
+		__send_update_status(class_id, id,
+				WIDGET_INSTANCE_EVENT_EXTRA_UPDATED, content_info);
+	}
+
+	if (content_info)
+		bundle_free(content_info);
+
+	__send_update_status(class_id, id, event, NULL);
+	appcore_multiwindow_base_class_on_terminate(context);
+}
+
+static void __stub_pause(appcore_multiwindow_base_instance_h context, void *data)
+{
+	struct widget_class_context *class_cxt  = data;
+	const char *id;
+	const char *class_id;
+
+	appcore_multiwindow_base_class_on_pause(context);
+	id = appcore_multiwindow_base_instance_get_id(context);
+	class_id = appcore_multiwindow_base_instance_get_class_id(context);
+
+	if (!class_cxt) {
+		_E("class context is NULL");
+		return;
+	}
+
+	if (class_cxt->callback.pause)
+		class_cxt->callback.pause(context, class_cxt->data);
+	_D("%s is paused", id);
+	__send_update_status(class_id, id,
+		WIDGET_INSTANCE_EVENT_PAUSE, NULL);
+}
+
+static void __stub_resume(appcore_multiwindow_base_instance_h context, void *data)
+{
+	struct widget_class_context *class_cxt  = data;
+	const char *id;
+	const char *class_id;
 
-	if (prev)
-		prev->prev = wc;
+	appcore_multiwindow_base_class_on_resume(context);
+	id = appcore_multiwindow_base_instance_get_id(context);
+	class_id = appcore_multiwindow_base_instance_get_class_id(context);
 
-	return wc;
+	if (!class_cxt) {
+		_E("class context is NULL");
+		return;
+	}
+
+	if (class_cxt->callback.resume)
+		class_cxt->callback.resume(context, class_cxt->data);
+	_D("%s is resumed", id);
+	__send_update_status(class_id, id,
+		WIDGET_INSTANCE_EVENT_RESUME, NULL);
 }
 
 EXPORT_API widget_class_h widget_app_class_add(widget_class_h widget_class,
 		const char *class_id,
 		widget_instance_lifecycle_callback_s callback, void *user_data)
 {
-	return _widget_class_create(widget_class, class_id, callback,
-			user_data);
+	appcore_multiwindow_base_class cls;
+	struct widget_class_context *cxt;
+
+	if (!__is_widget_feature_enabled()) {
+		_E("not supported");
+		set_last_result(WIDGET_ERROR_NOT_SUPPORTED);
+		return NULL;
+	}
+
+	if (!class_id) {
+		_E("class is is NULL");
+		set_last_result(WIDGET_ERROR_INVALID_PARAMETER);
+		return NULL;
+	}
+
+	cxt = calloc(1, sizeof(struct widget_class_context));
+
+	if (!cxt) {
+		_E("failed to calloc : %s", __FUNCTION__);
+		set_last_result(WIDGET_ERROR_OUT_OF_MEMORY);
+		return NULL;
+	}
+
+	cxt->callback = callback;
+	cxt->data = user_data;
+
+	cls.id = strdup(class_id);
+	cls.data = cxt;
+	cls.create = __stub_create;
+	cls.terminate = __stub_terminate;
+	cls.pause = __stub_pause;
+	cls.resume = __stub_resume;
+
+	appcore_multiwindow_base_class_add(cls);
+	set_last_result(WIDGET_ERROR_NONE);
+
+	return (widget_class_h)cxt;
 }
 
 EXPORT_API widget_class_h widget_app_class_create(
 		widget_instance_lifecycle_callback_s callback, void *user_data)
 {
-	return _widget_class_create(class_provider, appid, callback, user_data);
+	return widget_app_class_add(NULL, __appid, callback, user_data);
 }
 
 EXPORT_API int widget_app_context_set_tag(widget_context_h context, void *tag)
 {
-	if (!_is_widget_feature_enabled()) {
+	struct widget_extra *we;
+
+	if (!__is_widget_feature_enabled()) {
 		_E("not supported"); /* LCOV_EXCL_LINE */
 		return WIDGET_ERROR_NOT_SUPPORTED; /* LCOV_EXCL_LINE */
 	}
 
-	if (context == NULL)
+	if (!context)
 		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
 				__FUNCTION__, NULL);
 
-	context->tag = tag;
+	we = appcore_multiwindow_base_instance_get_extra((appcore_multiwindow_base_instance_h)context);
+	we->extra = tag;
 
 	return WIDGET_ERROR_NONE;
 }
 
 EXPORT_API int widget_app_context_get_tag(widget_context_h context, void **tag)
 {
-	if (!_is_widget_feature_enabled()) {
+	struct widget_extra *we;
+
+	if (!__is_widget_feature_enabled()) {
 		_E("not supported"); /* LCOV_EXCL_LINE */
 		return WIDGET_ERROR_NOT_SUPPORTED; /* LCOV_EXCL_LINE */
 	}
 
-	if (context == NULL || tag == NULL)
+	if (!context || !tag)
 		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
 				__FUNCTION__, NULL);
 
-	*tag = context->tag;
+	we  = appcore_multiwindow_base_instance_get_extra((appcore_multiwindow_base_instance_h)context);
+	if (we == NULL)
+		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
+				__FUNCTION__, NULL);
+	*tag = we->extra;
 
 	return WIDGET_ERROR_NONE;
 }
@@ -1514,44 +1237,47 @@ EXPORT_API int widget_app_context_get_tag(widget_context_h context, void **tag)
 EXPORT_API int widget_app_context_set_content_info(widget_context_h context,
 		bundle *content_info)
 {
-	const char *class_id = NULL;
 	int ret = 0;
 	bundle_raw *raw = NULL;
 	int len;
+	const char *id;
+	const char *class_id;
+	struct widget_extra *we;
+	appcore_multiwindow_base_instance_h cxt;
 
-	if (!_is_widget_feature_enabled()) {
+	if (!__is_widget_feature_enabled()) {
 		_E("not supported"); /* LCOV_EXCL_LINE */
 		return WIDGET_ERROR_NOT_SUPPORTED; /* LCOV_EXCL_LINE */
 	}
 
-	if (context == NULL || content_info == NULL)
+	if (!context || !content_info)
 		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
 				__FUNCTION__, NULL);
 
-	if (context->provider == NULL)
-		return widget_app_error(WIDGET_ERROR_INVALID_PARAMETER,
-				__FUNCTION__, NULL);
+	cxt = (appcore_multiwindow_base_instance_h)context;
+	id = appcore_multiwindow_base_instance_get_id(cxt);
+	class_id = appcore_multiwindow_base_instance_get_class_id(cxt);
+	we  = appcore_multiwindow_base_instance_get_extra(cxt);
 
-	class_id = context->provider->classid;
-	if (class_id == NULL)
+	if (!class_id || !id || !we)
 		return widget_app_error(WIDGET_ERROR_FAULT, __FUNCTION__, NULL);
 
-	ret = __send_update_status(class_id, context->id,
+	ret = __send_update_status(class_id, id,
 			WIDGET_INSTANCE_EVENT_EXTRA_UPDATED, content_info);
 
-	if (context->content)
-		free(context->content);
+	if (we->content)
+		free(we->content);
 
 	bundle_encode(content_info, &raw, &len);
 	if (raw)
-		context->content = strdup((const char *)raw);
+		we->content = strdup((const char *)raw);
 	else
-		context->content = NULL;
+		we->content = NULL;
 
 	free(raw);
 	if (ret < 0) {
 		/* LCOV_EXCL_START */
-		_E("failed to send content info: %s of %s (%d)", context->id,
+		_E("failed to send content info: %s of %s (%d)", id,
 				class_id, ret);
 		return widget_app_error(WIDGET_ERROR_IO_ERROR, __FUNCTION__,
 				NULL);
@@ -1564,16 +1290,24 @@ EXPORT_API int widget_app_context_set_content_info(widget_context_h context,
 EXPORT_API int widget_app_context_set_title(widget_context_h context,
 		const char *title)
 {
-	if (!_is_widget_feature_enabled()) {
+	appcore_multiwindow_base_instance_h cxt;
+	struct widget_extra *we;
+
+	if (!__is_widget_feature_enabled()) {
 		_E("not supported"); /* LCOV_EXCL_LINE */
 		return WIDGET_ERROR_NOT_SUPPORTED; /* LCOV_EXCL_LINE */
 	}
 
-	if (!context || !title)
+	if (!context || !title) {
+		_E("Invalid parameter %p %p", context, title);
 		return WIDGET_ERROR_INVALID_PARAMETER;
+	}
+
+	cxt = (appcore_multiwindow_base_instance_h)context;
+	we  = appcore_multiwindow_base_instance_get_extra(cxt);
 
-	if (context->win)
-		elm_win_title_set(context->win, title);
+	if (we->win)
+		elm_win_title_set(we->win, title);
 
 	return WIDGET_ERROR_NONE;
 }