modules/cache.js

   1 /**
   2  * (C) Copyright 2008 Nicholas A. Zigarovich
   3  *
   4  * Use, modification, and distribution are subject to the terms specified in the
   5  * COPYING file.
   6 **/
   7
   8 var CACHE_MEMORY  = Ci.nsICache.STORE_IN_MEMORY;
   9 var CACHE_DISK    = Ci.nsICache.STORE_ON_DISK;
  10 var CACHE_OFFLINE = Ci.nsICache.STORE_OFFLINE;
  11 var CACHE_ALL     = Ci.nsICache.STORE_ANYWHERE;
  12
  13 function cache_clear(cache_type) {
  14     let cs = Cc["@mozilla.org/network/cache-service;1"]
  15              .getService(Ci.nsICacheService);
  16     cs.evictEntries(cache_type);
  17     if (cache_type == CACHE_DISK)
  18         cs.evictEntries(Ci.nsICache.STORE_ON_DISK_IN_FILE);
  19 }
  20
  21 function cache_disable(cache_type) {
  22     if (cache_type == CACHE_MEMORY)
  23         session_pref("browser.cache.memory.enable", false);
  24     else if (cache_type == CACHE_DISK)
  25         session_pref("browser.cache.disk.enable", false);
  26     else if (cache_type == CACHE_OFFLINE)
  27         session_pref("browser.cache.offline.enable", false);
  28     else if (cache_type == CACHE_ALL) {
  29         cache_disable(CACHE_MEMORY);
  30         cache_disable(CACHE_DISK);
  31         cache_disable(CACHE_OFFLINE);
  32     }
  33     else
  34         throw new Error("Invalid cache type");
  35 }
  36
  37 function cache_enable(cache_type) {
  38     if (cache_type == CACHE_MEMORY)
  39         session_pref("browser.cache.memory.enable", true);
  40     else if (cache_type == CACHE_DISK)
  41         session_pref("browser.cache.disk.enable", true);
  42     else if (cache_type == CACHE_OFFLINE)
  43         session_pref("browser.cache.offline.enable", true);
  44     else if (cache_type == CACHE_ALL) {
  45         cache_enable(CACHE_MEMORY);
  46         cache_enable(CACHE_DISK);
  47         cache_enable(CACHE_OFFLINE);
  48     }
  49     else
  50         throw new Error("Invalid cache type");
  51 }