js/localFile.js

   1 (function () {
   2
   3     Rakka.canAccessLocalFile = function () {
   4         return $.browser.mozilla;
   5     };
   6
   7     var loadBin_mozilla = function (path) {
   8         try {
   9             netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
  10         }
  11         catch (e) {
  12             alert("Permission to read local file was denied. " +
  13                   "Open about:config and check that " +
  14                   "signed.applets.codebase_principal_support is set to true.");
  15         }
  16
  17         var localFile
  18             = Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
  19         localFile.initWithPath(path);
  20
  21         var stream
  22             = Components.classes["@mozilla.org/network/file-input-stream;1"].createInstance(Components.interfaces.nsIFileInputStream);
  23         stream.init(localFile, 0x01, 00004, null);
  24
  25         var bstream
  26             = Components.classes["@mozilla.org/network/buffered-input-stream;1"].getService();
  27         bstream.QueryInterface(Components.interfaces.nsIBufferedInputStream);
  28         bstream.init(stream, 1000);
  29         bstream.QueryInterface(Components.interfaces.nsIInputStream);
  30
  31         var binary
  32             = Components.classes["@mozilla.org/binaryinputstream;1"].createInstance(Components.interfaces.nsIBinaryInputStream);
  33         binary.setInputStream(stream);
  34
  35         return binary.readBytes(binary.available());
  36     };
  37
  38     Rakka.loadLocalBinaryFile = function (path) {
  39         if ($.browser.mozilla) {
  40             return loadBin_mozilla(path);
  41         }
  42     };
  43
  44 })();