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comparison js/modules/cache.js @ 93:00d23d6d41b4

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made cache module into cache/html5 and a factory function.
author Atul Varma <avarma@mozilla.com>
date Mon, 26 Apr 2010 19:02:23 -0700
parents e3de1fe32f40
children
comparison
equal deleted inserted replaced
92:16e98d4313e6 93:00d23d6d41b4
1 Require.modules["cache"] = function(exports, require) { 1 Require.modules["cache/html5"] = function(exports, require) {
2 const CACHE_NAME = "cache"; 2 exports.create = function create(name, storage) {
3 var cache = storage.getItem(name);
3 4
4 var storage = require("storage"); 5 if (cache)
5 var cache = storage.getItem(CACHE_NAME); 6 cache = JSON.parse(cache);
7 else
8 cache = {};
6 9
7 if (cache) 10 return {
8 cache = JSON.parse(cache); 11 set: function set(key, value) {
9 else 12 cache[key] = value;
10 cache = {};
11 13
12 exports.set = function set(key, value) { 14 // Remove the key first, to get around a strange iPad
13 cache[key] = value; 15 // issue: http://stackoverflow.com/questions/2603682/is-anyone-else-receiving-a-quota-exceeded-err-on-their-ipad-when-accessing-locals
16 storage.removeItem(name);
14 17
15 // Remove the key first, to get around a strange iPad 18 // TODO: We should really catch QUOTA_EXCEEDED_ERR here,
16 // issue: http://stackoverflow.com/questions/2603682/is-anyone-else-receiving-a-quota-exceeded-err-on-their-ipad-when-accessing-locals 19 // which could be thrown if the user is in private
17 storage.removeItem(CACHE_NAME); 20 // browsing mode.
21 storage.setItem(name, JSON.stringify(cache));
22 },
18 23
19 // TODO: We should really catch QUOTA_EXCEEDED_ERR here, 24 get: function get(key) {
20 // which could be thrown if the user is in private 25 return cache[key];
21 // browsing mode. 26 },
22 storage.setItem(CACHE_NAME, JSON.stringify(cache));
23 };
24 27
25 exports.get = function get(key) { 28 clear: function clear() {
26 return cache[key]; 29 storage.removeItem(name);
27 }; 30 cache = {};
28 31 }
29 exports.clear = function clear() { 32 };
30 storage.removeItem(CACHE_NAME);
31 cache = {};
32 }; 33 };
33 }; 34 };