From eb1e63df1b6343b68b3acd77cdfdef7ff7f90f50 Mon Sep 17 00:00:00 2001
From: Doyoun Kang <doyoun.kang@samsung.com>
Date: Thu, 6 Oct 2016 15:08:45 +0900
Subject: [PATCH] added feature to get process information (status, focused)

Change-Id: I34d51f32369c4bcbe4188b2b570e9079db9608c3
---
 src/e_mod_processmgr.c | 109 +++++++++++++++++++++++++++++++++++++++--
 1 file changed, 104 insertions(+), 5 deletions(-)

diff --git a/src/e_mod_processmgr.c b/src/e_mod_processmgr.c
index 3c84a25..aff4f59 100644
--- a/src/e_mod_processmgr.c
+++ b/src/e_mod_processmgr.c
@@ -1,23 +1,34 @@
 #include "e.h"
 #include "e_mod_processmgr.h"
 
+#define PATH "/org/enlightenment/wm"
+#define IFACE "org.enlightenment.wm.proc"
+
 static Eina_List *hooks_ec = NULL;
+Eldbus_Connection *_e_processmgr_conn;
+Eldbus_Service_Interface *_e_processmgr_iface;
 
 static void _e_processmgr_process_action_send(int pid, E_Process_Action act);
 static void _e_processmgr_cb_hook_action_change(void *d EINA_UNUSED, E_Process *epro, void *user);
+static Eldbus_Message* _e_processmgr_process_info_get(const Eldbus_Service_Interface *iface EINA_UNUSED, const Eldbus_Message *msg);
+
+static const Eldbus_Method _e_processmgr_methods[] = {
+   { "GetProcStatus", ELDBUS_ARGS({"i", "pid"}), ELDBUS_ARGS({"i","process status"}, {"i", "focused"}), _e_processmgr_process_info_get, 0 },
+   { NULL, NULL, NULL, NULL, 0 }
+};
 
+static const Eldbus_Service_Interface_Desc iface_desc = {
+   IFACE, _e_processmgr_methods, NULL, NULL, NULL, NULL
+};
 
 static void
 _e_processmgr_process_action_send(int pid, E_Process_Action act)
 {
-   Eldbus_Connection *conn;
    Eldbus_Message *msg;
-
    int param_pid;
    int param_act;
 
-   conn = eldbus_connection_get(ELDBUS_CONNECTION_TYPE_SYSTEM);
-   if (!conn) return;
+   if (!_e_processmgr_conn) return;
 
    // set up msg for resourced
    msg = eldbus_message_signal_new("/Org/Tizen/ResourceD/Process",
@@ -37,7 +48,7 @@ _e_processmgr_process_action_send(int pid, E_Process_Action act)
 
    ELOGF("PROCESSMGR", "SEND ACTION:%d to PID:%d", NULL, NULL, act, pid);
    // send the message
-   if (!eldbus_connection_send(conn, msg, NULL, NULL, -1))
+   if (!eldbus_connection_send(_e_processmgr_conn, msg, NULL, NULL, -1))
      return;
 
    eldbus_message_unref(msg);
@@ -55,6 +66,90 @@ _e_processmgr_cb_hook_action_change(void *d EINA_UNUSED, E_Process *epro, void *
    _e_processmgr_process_action_send(pid, action);
 }
 
+static int
+_e_processmgr_process_is_focused(int pid)
+{
+   E_Client* focused_ec = NULL;
+
+   if (pid <= 0) return 0;
+
+   focused_ec = e_client_focused_get();
+   if (!focused_ec) return 0;
+
+   if (focused_ec->netwm.pid == pid)
+     return 1;
+   else
+     return 0;
+}
+
+static Eldbus_Message *
+_e_processmgr_process_info_get(const Eldbus_Service_Interface *iface EINA_UNUSED, const Eldbus_Message *msg)
+{
+   Eldbus_Message *reply = eldbus_message_method_return_new(msg);
+   int pid = -1;
+   int status = 0;
+   int is_focused = 0;
+
+   if (!eldbus_message_arguments_get(msg, "i", &pid))
+     {
+        ERR("Error getting arguments.");
+        return reply;
+     }
+
+   status = e_process_state_get(pid);
+   is_focused = _e_processmgr_process_is_focused(pid);
+
+   eldbus_message_arguments_append(reply, "ii", status, is_focused);
+
+   return reply;
+}
+
+static Eina_Bool
+_e_processmgr_dbus_init(void *data EINA_UNUSED)
+{
+   if (_e_processmgr_conn) return ECORE_CALLBACK_CANCEL;
+
+   if (!_e_processmgr_conn)
+     _e_processmgr_conn = eldbus_connection_get(ELDBUS_CONNECTION_TYPE_SYSTEM);
+
+   if(!_e_processmgr_conn)
+     {
+        ecore_timer_add(1, _e_processmgr_dbus_init, NULL);
+        return ECORE_CALLBACK_CANCEL;
+     }
+
+   _e_processmgr_iface = eldbus_service_interface_register(_e_processmgr_conn,
+                                                           PATH,
+                                                           &iface_desc);
+   EINA_SAFETY_ON_NULL_GOTO(_e_processmgr_iface, err);
+
+   return ECORE_CALLBACK_CANCEL;
+
+err:
+   if (_e_processmgr_conn)
+     {
+        eldbus_connection_unref(_e_processmgr_conn);
+        _e_processmgr_conn = NULL;
+     }
+
+   return ECORE_CALLBACK_CANCEL;
+}
+
+static void
+_e_processmgr_dbus_shutdown(void)
+{
+   if (_e_processmgr_iface)
+     {
+        eldbus_service_interface_unregister(_e_processmgr_iface);
+        _e_processmgr_iface = NULL;
+     }
+
+   if (_e_processmgr_conn)
+     {
+        eldbus_connection_unref(_e_processmgr_conn);
+        _e_processmgr_conn = NULL;
+     }
+}
 
 EAPI Eina_Bool
 e_mod_processmgr_init(void)
@@ -64,6 +159,8 @@ e_mod_processmgr_init(void)
    if (!eldbus_init())
      return EINA_FALSE;
 
+   _e_processmgr_dbus_init(NULL);
+
    hook = e_process_hook_add(E_PROCESS_HOOK_ACTION_CHANGE, _e_processmgr_cb_hook_action_change, NULL);
    if (hook) hooks_ec = eina_list_append(hooks_ec, hook);
 
@@ -75,6 +172,8 @@ e_mod_processmgr_shutdown(void)
 {
    E_Client_Hook *hook;
 
+   _e_processmgr_dbus_shutdown();
+
    eldbus_shutdown();
 
    EINA_LIST_FREE(hooks_ec, hook)
-- 
2.34.1