Add a new API to get the focused application context

This API returns the app context handle that the window of the
application has focus.

Change-Id: Iee5753c0d0092a2eb0f9e5ecb649f50a001b47ae
Signed-off-by: Hwankyu Jhun <h.jhun@samsung.com>

4 files changed, 86 insertions, 2 deletions

diff --git a/include/app_manager_extension.h b/include/app_manager_extension.h
index 671ef18..c77e354 100644
--- a/include/app_manager_extension.h
+++ b/include/app_manager_extension.h
@@ -121,6 +121,23 @@ int app_manager_set_app_context_status_cb(app_manager_app_context_status_cb call
 int app_manager_get_app_context_by_instance_id(const char *app_id, const char *instance_id, app_context_h *app_context);
 
 /**
+ * @brief  Gets the focused application context.
+ * @since_tizen 3.0
+ * @remarks  This function returns #APP_MANAGER_ERROR_NO_SUCH_APP if all applications don't have focus. \n
+ *           You must release @a app_context using app_context_destroy().
+ *
+ * @param[out]  app_context  The focused application context
+ * @return      @c 0 on success,
+ *              otherwise a negative error value
+ * @retval  #APP_MANAGER_ERROR_NONE               Successful
+ * @retval  #APP_MANAGER_ERROR_INVALID_PARAMETER  Invalid parameter
+ * @retval  #APP_MANAGER_ERROR_IO_ERROR           Internal I/O error
+ * @retval  #APP_MANAGER_ERROR_OUT_OF_MEMORY      Out of memory
+ * @retval  #APP_MANAGER_ERROR_NO_SUCH_APP        No such application
+ */
+int app_manager_get_focused_app_context(app_context_h *app_context);
+
+/**
  * @}
  */
 
diff --git a/src/app_context.c b/src/app_context.c
index 88f63a3..31642b8 100644
--- a/src/app_context.c
+++ b/src/app_context.c
@@ -202,7 +202,7 @@ static int app_context_retrieve_app_context(const aul_app_info *aul_app_context,
 	app_state_e app_state;
 
 	if (aul_app_context != NULL && retrieval_context != NULL && retrieval_context->matched == false) {
-		if (retrieval_context->instance_id &&
+		if (retrieval_context->instance_id && retrieval_context->app_id &&
 				!strcmp(aul_app_context->instance_id, retrieval_context->instance_id) &&
 				!strcmp(aul_app_context->appid, retrieval_context->app_id)) {
 			app_state = app_context_get_app_status(aul_app_context->status);
@@ -213,7 +213,7 @@ static int app_context_retrieve_app_context(const aul_app_info *aul_app_context,
 			if (aul_app_context->is_sub_app)
 				retrieval_context->is_sub_app = true;
 			retrieval_context->matched = true;
-		} else if (retrieval_context->instance_id == NULL &&
+		} else if (retrieval_context->instance_id == NULL && retrieval_context->app_id &&
 				!strcmp(aul_app_context->appid, retrieval_context->app_id)) {
 			app_state = app_context_get_app_status(aul_app_context->status);
 
@@ -223,6 +223,15 @@ static int app_context_retrieve_app_context(const aul_app_info *aul_app_context,
 			if (aul_app_context->is_sub_app)
 				retrieval_context->is_sub_app = true;
 			retrieval_context->matched = true;
+		} else if (retrieval_context->pid > 0 && retrieval_context->pid == aul_app_context->pid) {
+			app_state = app_context_get_app_status(aul_app_context->status);
+
+			retrieval_context->app_id = strdup(aul_app_context->appid);
+			retrieval_context->pkg_id = strdup(aul_app_context->pkgid);
+			retrieval_context->app_state = app_state;
+			if (aul_app_context->is_sub_app)
+				retrieval_context->is_sub_app = true;
+			retrieval_context->matched = true;
 		}
 	}
 
@@ -707,3 +716,36 @@ int app_context_get_instance_id(app_context_h app_context, char **instance_id)
 
 	return APP_MANAGER_ERROR_NONE;
 }
+
+int app_context_get_app_context_by_pid(pid_t pid, app_context_h *app_context)
+{
+	int ret;
+	retrieval_context_s retrieval_context = {
+		.app_id = NULL,
+		.pid = pid,
+		.pkg_id = NULL,
+		.app_state = APP_STATE_UNDEFINED,
+		.is_sub_app = false,
+		.matched = false,
+		.instance_id = NULL
+	};
+
+	if (pid <= 0 || app_context == NULL)
+		return app_manager_error(APP_MANAGER_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
+
+	aul_app_get_running_app_instance_info(app_context_retrieve_app_context, &retrieval_context);
+	if (retrieval_context.matched == false)
+		return app_manager_error(APP_MANAGER_ERROR_NO_SUCH_APP, __FUNCTION__, NULL);
+
+	ret = app_context_create(retrieval_context.app_id,
+			retrieval_context.pid,
+			retrieval_context.pkg_id,
+			retrieval_context.app_state,
+			retrieval_context.is_sub_app,
+			retrieval_context.instance_id,
+			app_context);
+	free((void *)retrieval_context.app_id);
+	free(retrieval_context.pkg_id);
+
+	return ret;
+}
diff --git a/src/app_manager.c b/src/app_manager.c
index bab2a6f..fa9cc01 100644
--- a/src/app_manager.c
+++ b/src/app_manager.c
@@ -22,6 +22,7 @@
 #include <fcntl.h>
 
 #include <aul.h>
+#include <aul_window.h>
 #include <dlog.h>
 #include <cynara-client.h>
 #include <package-manager.h>
@@ -567,3 +568,25 @@ API int app_manager_get_app_context_by_instance_id(const char *app_id, const cha
 
 	return APP_MANAGER_ERROR_NONE;
 }
+
+API int app_manager_get_focused_app_context(app_context_h *app_context)
+{
+	int ret;
+	pid_t pid = -1;
+
+	if (app_context == NULL)
+		return app_manager_error(APP_MANAGER_ERROR_INVALID_PARAMETER, __FUNCTION__, NULL);
+
+	ret = aul_window_get_focused_pid(&pid);
+	if (ret != 0)
+		return app_manager_error(APP_MANAGER_ERROR_IO_ERROR, __FUNCTION__, NULL);
+
+	if (pid < 0)
+		return app_manager_error(APP_MANAGER_ERROR_NO_SUCH_APP, __FUNCTION__, NULL);
+
+	ret = app_context_get_app_context_by_pid(pid, app_context);
+	if (ret != APP_MANAGER_ERROR_NONE)
+		return app_manager_error(ret, __FUNCTION__, NULL);
+
+	return APP_MANAGER_ERROR_NONE;
+}
diff --git a/src/app_manager_internal.h b/src/app_manager_internal.h
index 5c41a6e..7a6100e 100644
--- a/src/app_manager_internal.h
+++ b/src/app_manager_internal.h
@@ -49,6 +49,8 @@ int app_context_get_app_context_by_instance_id(const char *app_id, const char *i
 
 int app_context_get_instance_id(app_context_h app_context, char **instance_id);
 
+int app_context_get_app_context_by_pid(pid_t pid, app_context_h *app_context);
+
 typedef struct app_manager_event_info_s {
 	int req_id;
 	app_manager_event_type_e event_type;