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Implement load/save for the Update Manager

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ben%bengoodger.com 2005-06-10 23:58:10 +00:00
parent b42ec02ba4
commit 32ddfe36a3
1 changed files with 42 additions and 0 deletions
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42
toolkit/mozapps/update/src/nsUpdateService.js.in
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@ -62,6 +62,7 @@ const DIR_UPDATES = "updates";
const FILE_UPDATE_STATUS = "update.status";
const FILE_UPDATE_ARCHIVE = "update.mar";
const FILE_UPDATE_INFO = "update.info";
const FILE_UPDATES_DB = "updates.xml";
const MODE_RDONLY = 0x01;
const MODE_WRONLY = 0x02;
@ -622,8 +623,30 @@ UpdateService.prototype = {
};
function UpdateManager() {
this._init();
}
UpdateManager.prototype = {
/**
*
*/
_data: null,
/**
*
*/
_init: function() {
var updatesDB = getFile(KEY_APPDIR, [FILE_UPDATES_DB]);
var fileStream = Components.classes["@mozilla.org/network/file-input-stream;1"]
.createInstance(Components.interfaces.nsIFileInputStream);
fileStream.init(updatesDB, MODE_RDONLY, PERMS_FILE, 0);
if (fileStream instanceof Components.interfaces.nsIScriptableInputStream) {
var data = fileStream.read(fileStream.available());
var parser = Components.classes["@mozilla.org/xmlextras/domparser;1"]
.createInstance(Components.interfaces.nsIDOMParser);
this._data = parser.parseFromString(data, "text/xml");
}
},
/**
* See nsIUpdateService.idl
*/
@ -654,6 +677,25 @@ UpdateManager.prototype = {
* See nsIUpdateService.idl
*/
saveUpdates: function() {
if (!this._doc)
return;
var fos = Components.classes["@mozilla.org/network/safe-file-output-stream;1"]
.createInstance(Components.interfaces.nsIFileOutputStream);
var updatesDB = getFile(KEY_APPDIR, [FILE_UPDATES_DB]);
var modeFlags = MODE_WRONLY | MODE_CREATE | MODE_TRUNCATE;
if (!updatesDB.exists())
updatesDB.create(nsILocalFile.NORMAL_FILE_TYPE, PERMS_FILE);
fos.init(updatesDB, modeFlags, PERMS_FILE, 0);
var serializer = Components.classes["@mozilla.org/xmlextras/xmlserializer;1"]
.createInstance(Components.interfaces.nsIDOMSerializer);
serializer.serializeToStream(this._data.documentElement, fos, null);
if (fos instanceof Components.interfaces.nsISafeOutputStream)
fos.finish();
else
fos.close();
},
/**