initial about:weave impl (does nothing)

services/sync/Weave.js

@@ -34,7 +34,11 @@
  *
  * ***** END LICENSE BLOCK ***** */
 
-Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+const Cc = Components.classes;
+const Ci = Components.interfaces;
+const Cu = Components.utils;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 
 function WeaveService() {}
 WeaveService.prototype = {
@@ -43,28 +47,51 @@ WeaveService.prototype = {
   classID: Components.ID("{74b89fb0-f200-4ae8-a3ec-dd164117f6de}"),
   _xpcom_categories: [{ category: "app-startup", service: true }],
 
-  QueryInterface: XPCOMUtils.generateQI([Components.interfaces.nsIObserver,
-                                         Components.interfaces.nsISupportsWeakReference]),
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
+                                         Ci.nsISupportsWeakReference]),
 
   observe: function BSS__observe(subject, topic, data) {
     switch (topic) {
     case "app-startup":
-      let os = Components.classes["@mozilla.org/observer-service;1"].
-        getService(Components.interfaces.nsIObserverService);
+      let os = Cc["@mozilla.org/observer-service;1"].
+        getService(Ci.nsIObserverService);
       os.addObserver(this, "sessionstore-windows-restored", true);
       break;
    /* The following event doesn't exist on Fennec; for Fennec loading, see
     * fennec-weave-overlay.js.
     */
     case "sessionstore-windows-restored":
-      Components.utils.import("resource://weave/service.js");
+      Cu.import("resource://weave/service.js");
       Weave.Service.onStartup();
       break;
     }
   }
 };
 
+function AboutWeaveService() {}
+AboutWeaveService.prototype = {
+  classDescription: "about:weave",
+  contractID: "@mozilla.org/network/protocol/about;1?what=weave",
+  classID: Components.ID("{ecb6987d-9d71-475d-a44d-a5ff2099b08c}"),
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIAboutModule,
+                                         Ci.nsISupportsWeakReference]),
+
+  getURIFlags: function(aURI) {
+    return (Ci.nsIAboutModule.ALLOW_SCRIPT |
+            Ci.nsIAboutModule.URI_SAFE_FOR_UNTRUSTED_CONTENT);
+  },
+
+  newChannel: function(aURI) {
+    let ios = Cc["@mozilla.org/network/io-service;1"]
+      .getService(Ci.nsIIOService);
+    let ch = ios.newChannel("chrome://weave/content/weave.html", null, null);
+    ch.originalURI = aURI;
+    return ch;
+  }
+};
+
 function NSGetModule(compMgr, fileSpec) {
-  return XPCOMUtils.generateModule([WeaveService]);
+  return XPCOMUtils.generateModule([WeaveService, AboutWeaveService]);
 }