src/controller.c

   1 /*
   2  * Copyright (c) 2017 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Contact: Jin Yoon <jinny.yoon@samsung.com>
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19 #include <Eina.h>
  20
  21 #include "log.h"
  22 #include "controller.h"
  23
  24 struct controller_s {
  25         Eina_List *event_cb_list;
  26 };
  27 static struct controller_s controller_info;
  28
  29 struct _controller_event_cb_info_s {
  30         char *event_name;
  31         controller_event_cb event_cb;
  32         void *data;
  33 };
  34 typedef struct _controller_event_cb_info_s controller_event_cb_info_s;
  35
  36
  37 int controller_register_event_cb(const char *event_name, controller_event_cb event_cb, void *data)
  38 {
  39         controller_event_cb_info_s *event_cb_info = NULL;
  40
  41         retv_if(!event_name, -1);
  42         retv_if(!event_cb, -1);
  43
  44         event_cb_info = calloc(1, sizeof(controller_event_cb_info_s));
  45         retv_if(!event_cb_info, -1);
  46
  47         event_cb_info->event_name = strdup(event_name);
  48         goto_if(!event_cb_info->event_name, error);
  49
  50         event_cb_info->event_cb = event_cb;
  51         event_cb_info->data = data;
  52
  53         controller_info.event_cb_list = eina_list_append(controller_info.event_cb_list, event_cb_info);
  54
  55         return 0;
  56
  57 error:
  58         if (event_cb_info) free(event_cb_info);
  59
  60         return -1;
  61 }
  62
  63 int controller_unregister_event_cb(const char *event_name, controller_event_cb event_cb)
  64 {
  65         controller_event_cb_info_s *event_cb_info = NULL;
  66         const Eina_List *l = NULL;
  67         const Eina_List *ln = NULL;
  68
  69         retv_if(!event_name, -1);
  70         retv_if(!event_cb, -1);
  71
  72         EINA_LIST_FOREACH_SAFE(controller_info.event_cb_list, l, ln, event_cb_info) {
  73                 if (event_cb_info->event_name
  74                         && strcmp(event_cb_info->event_name, event_name)
  75                         && event_cb_info->event_cb == event_cb)
  76                 {
  77                         controller_info.event_cb_list = eina_list_remove(controller_info.event_cb_list, event_cb_info);
  78                         break;
  79                 }
  80         }
  81
  82         return 0;
  83 }
  84
  85 int controller_send_event(const char *event_name, void *event_info)
  86 {
  87         controller_event_cb_info_s *event_cb_info = NULL;
  88         const Eina_List *l = NULL;
  89         const Eina_List *ln = NULL;
  90
  91         retv_if(!event_name, -1);
  92
  93         EINA_LIST_FOREACH_SAFE(controller_info.event_cb_list, l, ln, event_cb_info) {
  94                 if (event_cb_info->event_name
  95                         && strcmp(event_cb_info->event_name, event_name))
  96                 {
  97                         int ret = -1;
  98                         ret = event_cb_info->event_cb(event_name, event_info, event_cb_info->data);
  99                         if (ret < 0) _E("There were errors sending an event");
 100                         break;
 101                 }
 102         }
 103
 104         return 0;
 105 }