src/background.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include "lockscreen.h"
  18 #include "log.h"
  19 #include "background.h"
  20 #include "util.h"
  21
  22 #include <system_settings.h>
  23 #include <Ecore.h>
  24 #include <Ecore_File.h>
  25
  26 #define DEFAULT_BG IMAGE_DIR"Default.jpg"
  27
  28 static char *background_file;
  29 static int init_count;
  30 int LOCKSCREEN_EVENT_BACKGROUND_CHANGED;
  31
  32 int lockscreen_background_init(void)
  33 {
  34         char *bg;
  35
  36         if (!init_count) {
  37                 LOCKSCREEN_EVENT_BACKGROUND_CHANGED = ecore_event_type_new();
  38                 int ret = system_settings_get_value_string(SYSTEM_SETTINGS_KEY_WALLPAPER_LOCK_SCREEN, &bg);
  39                 if (ret != SYSTEM_SETTINGS_ERROR_NONE) {
  40                         ERR("system_settings_set_value_string failed: %s", get_error_message(ret));
  41                         init_count = 0;
  42                         return -1;
  43                 }
  44                 if (lockscreen_background_file_set(bg))
  45                         lockscreen_background_file_set(NULL);
  46                 free(bg);
  47         }
  48         init_count++;
  49         return 0;
  50 }
  51
  52 int lockscreen_background_file_set(const char *path)
  53 {
  54         if (!path) {
  55                 return lockscreen_background_file_set(util_get_res_file_path(DEFAULT_BG));
  56         }
  57
  58         if (background_file && !strcmp(background_file, path)) {
  59                 return 0;
  60         }
  61
  62         if (!ecore_file_can_read(path)) {
  63                 ERR("Cannot access/read background file: %s", path);
  64                 return -1;
  65         }
  66
  67         free(background_file);
  68         background_file = strdup(path);
  69
  70         ecore_event_add(LOCKSCREEN_EVENT_BACKGROUND_CHANGED, NULL, NULL, NULL);
  71         return 0;
  72 }
  73
  74 void lockscreen_background_shutdown(void)
  75 {
  76         if (init_count) {
  77                 init_count--;
  78                 free(background_file);
  79                 background_file = NULL;
  80         }
  81 }
  82
  83 const char *lockscreen_background_file_get(void)
  84 {
  85         return background_file;
  86 }