Create a minimal settings UI

adblockplus/Api.jsm

Index: adblockplus/Api.jsm
diff --git a/adblockplus/Api.jsm b/adblockplus/Api.jsm
index d87c428db1072eacdb8f8ba52a97a52879b1992c..9c3fba85b554ef34fcf2bc55b6edd30e48e9250a 100644
--- a/adblockplus/Api.jsm
+++ b/adblockplus/Api.jsm
@@ -23,6 +23,7 @@ const Cr = Components.results;
 const Cu = Components.utils;
 
 Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/Messaging.jsm");
 
 function require(module)
 {
@@ -32,12 +33,19 @@ function require(module)
   return result.exports;
 }
 
+let {FilterNotifier} = require("filterNotifier");
 let {FilterStorage} = require("filterStorage");
 let {Prefs} = require("prefs");
 let {UI} = require("ui");
 
+let {FilterNotifier} = require("filterNotifier");
+
 var AdblockPlusApi =
 {
+  get filtersLoaded()
+  {
+    return filtersLoaded;
+  },
   get acceptableAdsEnabled()
   {
     return FilterStorage.subscriptions.some(
@@ -49,3 +57,41 @@ var AdblockPlusApi =
       UI.toggleAcceptableAds();
   }
 };
+
+
+FilterNotifier.addListener(function filterListener(action)
+{
+  if (action != "load")
+    return;
+
+  filtersLoaded = true;
+  FilterNotifier.removeListener(filterListener);
+});
+
+RequestService.addListener(function(data)
+{
+  if (!data)
+    return {"success" : false, "error" : "misformed request"};
+
+  if (data["action"] == "query_ready_state")
+    return {"success" : true, "value" : AdblockPlusApi.filtersLoaded};
+
+  if (!AdblockPlusApi.filtersLoaded)
+    return {"success" : false, "error" : "filters not loaded"};
+
+  switch (data["action"])
+  {
+    case "query_acceptable_ads_state":
+      return {"success" : true, "value" : AdblockPlusApi.acceptableAdsEnabled};
+    case "change_acceptable_ads_state":
+      if ("enable" in data)
+      {
+        AdblockPlusApi.acceptableAdsEnabled = !!data["enable"];
+        return {"success" : true};
+      }
+      return {"success" : false, "error" : "misformed request"};
+    default:
+      return {"success" : false, "error" : "unknown action '" + data["action"] + "'"};
+  }
+  return {"success" : false, "error" : "misformed request"};
+}, "AdblockPlus:Api");