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GN_PersistentStorage

Операции с БД

  1. // ==UserScript==
  2. // @name        GN_PersistentStorage
  3. // @namespace   Gradient
  4. // @description Операции с БД
  5. // @include     /^https{0,1}:\/\/(www\.heroeswm\.ru|178\.248\.235\.15|my\.lordswm\.com)\/.+/
  6. // @exclude     /^https{0,1}:\/\/(www\.heroeswm\.ru|178\.248\.235\.15|my\.lordswm\.com)\/(login|war|cgame|frames|chat|chatonline|ch_box|chat_line|ticker|chatpost|chat2020|battlechat|campaign)\.php.*/
  7. // @version     1.0.5
  8. // @grant       GM_setValue
  9. // @grant       GM_getValue
  10. // @grant       GM_deleteValue
  11. // ==/UserScript==
  12.  
  13. "use strict";
  14.  
  15. //----------------------------------------------------------------------------//
  16.  
  17. var script_name = 'GN_PersistentStorage'; // Enter your script name here
  18.  
  19. //----------------------------------------------------------------------------//
  20.  
  21. (function(){ try{ // wrapper start
  22.  
  23. //----------------------------------------------------------------------------//
  24.  
  25. //var operations = [ 'save', 'load', 'remove' ];
  26. //var states     = [ 'complete', 'incomplete' ];
  27.  
  28. var div = document.createElement('div');
  29. div.id = 'GN_GM_Handler';
  30. div.setAttribute('desc',      '');
  31. div.setAttribute('value',     '');
  32. div.setAttribute('operation', 'unknown');
  33. div.setAttribute('state',     'incomplete');
  34. div.setAttribute('is_null',   'false');
  35.  
  36. div.addEventListener('click', function(e){
  37.   e.preventDefault();
  38.  
  39.   div.setAttribute('state', 'incomplete');
  40.  
  41.   var operation = div.getAttribute('operation');
  42.  
  43.   if(operation == 'save'){
  44.     save_value(div.getAttribute('desc'), div.getAttribute('value'));
  45.     div.setAttribute('value', '');
  46.   }
  47.   else if(operation == 'load'){
  48.     var value = load_value(div.getAttribute('desc'));
  49.  
  50.     div.setAttribute('is_null', !value ? 'true' : 'false');
  51.     div.setAttribute('value', value ? value : '');
  52.   }
  53.   else if(operation == 'remove'){
  54.     remove_value(div.getAttribute('desc'));
  55.     div.setAttribute('value', '');
  56.   }
  57.  
  58.   div.setAttribute('desc',      '');
  59.   div.setAttribute('operation', 'unknown');
  60.   div.setAttribute('state',     'complete');
  61. });
  62.  
  63. document.body.appendChild(div);
  64.  
  65. //----------------------------------------------------------------------------//
  66.  
  67. function save_value(desc, value){
  68.   if(check_gm_function()){
  69.     GM_setValue(desc, value);
  70.     return;
  71.   }
  72.  
  73.   check_local_storage();
  74.  
  75.   try{
  76.     localStorage.setItem(desc, value);
  77.   }
  78.   catch(e){
  79.     show_error('Ошибка при сохранении значения');
  80.   }
  81. }
  82.  
  83. //----------------------------------------------------------------------------//
  84.  
  85. function load_value(value){
  86.   if(check_gm_function())
  87.     return GM_getValue(value, null);
  88.  
  89.   check_local_storage();
  90.  
  91.   return localStorage.getItem(value);
  92. }
  93.  
  94. //----------------------------------------------------------------------------//
  95.  
  96. function remove_value(value){
  97.   if(check_gm_function()){
  98.     GM_deleteValue(value);
  99.     return;
  100.   }
  101.  
  102.   check_local_storage();
  103.  
  104.   localStorage.removeItem(value);
  105. }
  106.  
  107. //----------------------------------------------------------------------------//
  108.  
  109. function check_local_storage(){
  110.   if('localStorage' in window && window['localStorage'] !== null)
  111.     return;
  112.  
  113.   show_error('Не найдено локальное хранилище');
  114. }
  115.  
  116. //----------------------------------------------------------------------------//
  117.  
  118. function check_gm_function(){
  119.   return typeof GM_setValue == 'function';
  120. }
  121.  
  122. //----------------------------------------------------------------------------//
  123.  
  124. function show_error(error_string){
  125.   throw new Error(error_string);
  126. }
  127.  
  128. //----------------------------------------------------------------------------//
  129.  
  130. } catch(e){
  131.   alert('Ошибка в скрипте ' + script_name + ', обратитесь к разработчику:\n' + e);
  132.   throw e;
  133. }}()); // wrapper end
  134.  
  135. //----------------------------------------------------------------------------//

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