switched from a pag-mod implementation to a tabs implementation - sav…

…es on memory for pages with many iframes, etc.

lib/main.js

@@ -4,14 +4,19 @@ var pageMod = require('page-mod'),
     url = require('url'),
     {Cc, Ci} = require('chrome');
 
-pageMod.PageMod({
-    include: "*",
-    contentScriptWhen: 'ready',
-    contentScriptFile: [
-        data.url('jquery-1.7.1.min.js'),
-        data.url('dotjs.js')
-    ],
-    onAttach: function onAttach(worker) {
+
+/*
+ * 
+ */
+var tabs = require("tabs");
+
+tabs.on('ready', function(tab) {
+    // test for the worker as a property of the tab object.
+    if (typeof(tab._dotjs_worker) === 'undefined') {
+        let worker = tab.attach({
+            contentScriptFile: [data.url('jquery-1.7.1.min.js'), data.url('dotjs.js')]
+        });
+
         worker.on('message', function(msg) {
             var domain = url.URL(msg).host,
                 dirSvc = Cc['@mozilla.org/file/directory_service;1']
@@ -23,6 +28,7 @@ pageMod.PageMod({
             if (domain.indexOf('www.') === 0) {
                 domain = domain.substring(4, domain.length);
             }
+
             files = ['default', domain];
             for (var i=0; i < files.length; i++) {
                 filename = file.join(homeDir, jsDir, files[i]);
@@ -45,5 +51,8 @@ pageMod.PageMod({
                 }
             }
         });
+        // later, add the worker as a property od the tab object, so we don't inject
+        // the tab more than once.
+        tab._dotjs_worker = worker;
     }
 });