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Photo Viewer DB Interface

IndexedDB interface for WMEPIE Photo Viewer tool

当前为 2018-12-05 提交的版本，查看 最新版本。

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greatest.deepsurf.us/scripts/375202/650818/Photo%20Viewer%20DB%20Interface.js 

  1. // ==UserScript==
  2. // @name         Photo Viewer DB Interface
  3. // @namespace    https://greatest.deepsurf.us/en/users/166843-wazedev
  4. // @version      2018.12.04.01
  5. // @description  IndexedDB interface for WMEPIE Photo Viewer tool
  6. // @author       WazeDev
  7. // @include      /^https:\/\/(www|beta)\.waze\.com\/(?!user\/)(.{2,6}\/)?editor\/?.*$/
  8. // @license      GNU GPLv3
  9. // @grant        none
  10. // ==/UserScript==
  11.  
  12.  
  13. (function() {
  14.   'use strict';
  15.   var pvdb;
  16.  
  17.   function getDB() {
  18.     if (!pvdb) {
  19.       pvdb= new Promise(function(resolve, reject) {
  20.         var openreq = indexedDB.open('WMEPIEPhotoViewer', 1);
  21.  
  22.         openreq.onerror = function() {
  23.           reject(openreq.error);
  24.         };
  25.  
  26.         openreq.onupgradeneeded = function() {
  27.           // First time setup: create an empty object store
  28.           //openreq.result.createObjectStore(dbName, { keyPath: "placeID" });
  29. 		  if(!openreq.result.objectStoreNames.contains("Places")) {
  30. 			  openreq.result.createObjectStore("Places", { keyPath: "placeID" });
  31. 			  }
  32.         };
  33.  
  34.         openreq.onsuccess = function() {
  35.           resolve(openreq.result);
  36.         };
  37.       });
  38.     }
  39.     return pvdb;
  40.   }
  41.  
  42.   function withStore(storeName, type, callback) {
  43.     return getDB().then(function(pvdb) {
  44.       return new Promise(function(resolve, reject) {
  45.         var transaction = pvdb.transaction(storeName, type);
  46.         transaction.oncomplete = function() {
  47.           resolve();
  48.         };
  49.         transaction.onerror = function() {
  50.           reject(transaction.error);
  51.         };
  52.         callback(transaction.objectStore(storeName));
  53.       });
  54.     });
  55.   }
  56.  
  57.   var idbKeyval = {
  58.     get: function(storeName, key) {
  59.       var req;
  60.       return withStore(storeName, 'readonly', function(store) {
  61.         req = store.get(key);
  62.       }).then(function() {
  63.         return req.result;
  64.       });
  65.     },
  66.     set: function(storeName, value) {
  67.       return withStore(storeName, 'readwrite', function(store) {
  68.         store.put(value);
  69.       });
  70.     },
  71.     delete: function(storeName, key) {
  72.       return withStore(storeName, 'readwrite', function(store) {
  73.         store.delete(key);
  74.       });
  75.     },
  76.     clear: function(storeName) {
  77.       return withStore(storeName, 'readwrite', function(store) {
  78.         store.clear();
  79.       });
  80.     },
  81.     keys: function(storeName) {
  82.       var keys = [];
  83.       return withStore(storeName, 'readonly', function(store) {
  84.         // This would be store.getAllKeys(), but it isn't supported by Edge or Safari.
  85.         // And openKeyCursor isn't supported by Safari.
  86.         (store.openKeyCursor || store.openCursor).call(store).onsuccess = function() {
  87.           if (!this.result) return;
  88.           keys.push(this.result.key);
  89.           this.result.continue();
  90.         };
  91.       }).then(function() {
  92.         return keys;
  93.       });
  94.     }
  95.   };
  96.  
  97.   if (typeof module != 'undefined' && module.exports) {
  98.     module.exports = idbKeyval;
  99.   } else if (typeof define === 'function' && define.amd) {
  100.     define('idbKeyval', [], function() {
  101.       return idbKeyval;
  102.     });
  103.   } else {
  104.     self.idbKeyval = idbKeyval;
  105.   }
  106. }());