Support plugin for customizing appcore ui base

- APPCORE_UI_PLUGIN_INIT function
The function will be invoked while initializing appcore ui base.
- APPCORE_UI_PLUGIN_FINI function
The function will be invoked while finalizing appcore ui base.

Change-Id: Ifd0ab64b994e3dcea388c96dedd74b5415387d0c
Signed-off-by: Hwankyu Jhun <h.jhun@samsung.com>

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4b4a9bd..bc52ac3 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -54,7 +54,7 @@ ENDFOREACH(hfile)
 # Build appcore-efl Library
 # ------------------------------
 SET(APPCORE_EFL "appcore-efl")
-SET(SRCS_efl src/legacy/appcore-efl.c src/ui_base/appcore_ui_base.c)
+SET(SRCS_efl src/legacy/appcore-efl.c src/ui_base/appcore_ui_base.c src/ui_base/appcore_ui_plugin.c)
 SET(HEADERS_efl appcore-efl.h appcore_ui_base.h)
 
 INCLUDE(FindPkgConfig)

diff --git a/include/appcore_ui_plugin.h b/include/appcore_ui_plugin.h
new file mode 100644 (file)
index 0000000..e254286
--- /dev/null
+++ b/include/appcore_ui_plugin.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 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.
+ * 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.
+ */
+
+#ifndef __APPCORE_UI_PLUGIN_H__
+#define __APPCORE_UI_PLUGIN_H__
+
+#include "appcore_ui_base.h"
+
+void appcore_ui_plugin_init(appcore_ui_base_ops *ops, unsigned int *hint);
+void appcore_ui_plugin_fini(void);
+
+#endif /* __APPCORE_UI_PLUGIN_H__ */

diff --git a/src/ui_base/appcore_ui_base.c b/src/ui_base/appcore_ui_base.c
index b4b13b2..76681c5 100644 (file)
--- a/src/ui_base/appcore_ui_base.c
+++ b/src/ui_base/appcore_ui_base.c
@@ -49,6 +49,7 @@
 #include "appcore_base.h"
 #include "appcore_ui_base.h"
 #include "appcore_ui_base_private.h"
+#include "appcore_ui_plugin.h"
 
 enum app_state {
        AS_NONE,
@@ -687,6 +688,7 @@ EXPORT_API int appcore_ui_base_init(appcore_ui_base_ops ops, int argc, char **ar
        int r;
        bool is_vc_vt_automode = false;
 
+       appcore_ui_plugin_init(&ops, &hint);
        aul_app_get_appid_bypid(getpid(), appid, sizeof(appid));
        __context.ops = ops;
        __context.data = data;
@@ -745,6 +747,7 @@ EXPORT_API void appcore_ui_base_fini(void)
        int r;
 
        appcore_base_fini();
+       appcore_ui_plugin_fini();
 
        if (__context.hshow)
                ecore_event_handler_del(__context.hshow);

diff --git a/src/ui_base/appcore_ui_plugin.c b/src/ui_base/appcore_ui_plugin.c
new file mode 100644 (file)
index 0000000..f25b60e
--- /dev/null
+++ b/src/ui_base/appcore_ui_plugin.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 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.
+ * 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.
+ */
+
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <dlfcn.h>
+#include <dlog.h>
+
+#include "appcore_ui_plugin.h"
+
+#ifdef LOG_TAG
+#undef LOG_TAG
+#endif
+
+#define LOG_TAG "APP_CORE_UI_PLUGIN"
+
+#define PATH_LIBAPPCORE_UI_PLUGIN \
+       "/usr/share/appcore/plugins/libappcore-ui-plugin.so"
+#define APPCORE_UI_PLUGIN_INIT "APPCORE_UI_PLUGIN_INIT"
+#define APPCORE_UI_PLUGIN_FINI "APPCORE_UI_PLUGIN_FINI"
+
+static int (*__plugin_init)(appcore_ui_base_ops *ops, unsigned int *hint);
+static int (*__plugin_fini)(void);
+static void *__handle;
+
+static void __unload_appcore_ui_plugin(void)
+{
+       if (__handle) {
+               dlclose(__handle);
+               __handle = NULL;
+       }
+
+       __plugin_init = NULL;
+       __plugin_fini = NULL;
+}
+
+static void __load_appcore_ui_plugin(void)
+{
+       if (access(PATH_LIBAPPCORE_UI_PLUGIN, F_OK) != 0)
+               return;
+
+       if (!__handle) {
+               __handle = dlopen(PATH_LIBAPPCORE_UI_PLUGIN, RTLD_LAZY);
+               if (!__handle) {
+                       LOGE("Failed to open %s", PATH_LIBAPPCORE_UI_PLUGIN);
+                       return;
+               }
+       }
+
+       __plugin_init = dlsym(__handle, APPCORE_UI_PLUGIN_INIT);
+       if (!__plugin_init)
+               LOGW("Failed to load %s symbol", APPCORE_UI_PLUGIN_INIT);
+
+       __plugin_fini = dlsym(__handle, APPCORE_UI_PLUGIN_FINI);
+       if (!__plugin_fini)
+               LOGW("Failed to load %s symbol", APPCORE_UI_PLUGIN_FINI);
+}
+
+void appcore_ui_plugin_init(appcore_ui_base_ops *ops, unsigned int *hint)
+{
+       LOGI("[PLUGIN] init");
+
+       if (!__plugin_init && !__plugin_fini)
+               __load_appcore_ui_plugin();
+
+       if (__plugin_init)
+               __plugin_init(ops, hint);
+}
+
+void appcore_ui_plugin_fini(void)
+{
+       LOGI("[PLUGIN] fini");
+
+       if (__plugin_fini)
+               __plugin_fini();
+
+       __unload_appcore_ui_plugin();
+}