diff --git a/Makefile b/Makefile
index bbe3a46..2f075b3 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 
 UUID = dash-to-panel@jderose9.github.com
 BASE_MODULES = extension.js stylesheet.css metadata.json COPYING README.md
-EXTRA_MODULES = appIcons.js convenience.js panel.js intellihide.js panelStyle.js overview.js taskbar.js windowPreview.js prefs.js Settings.ui
+EXTRA_MODULES = appIcons.js convenience.js panel.js intellihide.js panelStyle.js overview.js taskbar.js windowPreview.js prefs.js utils.js Settings.ui
 EXTRA_IMAGES = highlight_stacked_bg.svg
 TOLOCALIZE =  prefs.js appIcons.js
 MSGSRC = $(wildcard po/*.po)
diff --git a/appIcons.js b/appIcons.js
index 44b0292..2848879 100644
--- a/appIcons.js
+++ b/appIcons.js
@@ -47,7 +47,7 @@ const Util = imports.misc.util;
 const Workspace = imports.ui.workspace;
 
 const Me = imports.misc.extensionUtils.getCurrentExtension();
-const Convenience = Me.imports.convenience;
+const Utils = Me.imports.utils;
 const WindowPreview = Me.imports.windowPreview;
 const Taskbar = Me.imports.taskbar;
 
@@ -222,7 +222,7 @@ var taskbarAppIcon = new Lang.Class({
 
         this._numberOverlay();
 
-        this._signalsHandler = new Convenience.GlobalSignalsHandler();
+        this._signalsHandler = new Utils.GlobalSignalsHandler();
     },
 
     _createWindowPreview: function() {
diff --git a/convenience.js b/convenience.js
index 161cf3b..57d2f13 100644
--- a/convenience.js
+++ b/convenience.js
@@ -25,8 +25,6 @@ const Config = imports.misc.config;
 const ExtensionUtils = imports.misc.extensionUtils;
 const Gettext = imports.gettext;
 const Gio = imports.gi.Gio;
-const Lang = imports.lang;
-const Mainloop = imports.mainloop;
 
 /**
  * initTranslations:
@@ -88,160 +86,4 @@ function getSettings(schema) {
     return new Gio.Settings({
         settings_schema: schemaObj
     });
-}
-
-
-// simplify global signals and function injections handling
-// abstract class
-var BasicHandler = new Lang.Class({
-    Name: 'DashToPanel.BasicHandler',
-
-    _init: function(){
-        this._storage = new Object();
-    },
-
-    add: function(/*unlimited 3-long array arguments*/){
-
-        // convert arguments object to array, concatenate with generic
-        let args = Array.concat('generic', Array.slice(arguments));
-        // call addWithLabel with ags as if they were passed arguments
-        this.addWithLabel.apply(this, args);
-    },
-
-    destroy: function() {
-        for( let label in this._storage )
-            this.removeWithLabel(label);
-    },
-
-    addWithLabel: function( label /* plus unlimited 3-long array arguments*/) {
-
-        if(this._storage[label] == undefined)
-            this._storage[label] = new Array();
-
-        // skip first element of the arguments
-        for( let i = 1; i < arguments.length; i++ ) {
-            let item = this._storage[label];
-            let handlers = this._create(arguments[i]);
-
-            for (let j = 0, l = handlers.length; j < l; ++j) {
-                item.push(handlers[j]);
-            }
-        }
-
-    },
-
-    removeWithLabel: function(label){
-
-        if(this._storage[label]) {
-            for( let i = 0; i < this._storage[label].length; i++ ) {
-                this._remove(this._storage[label][i]);
-            }
-
-            delete this._storage[label];
-        }
-    },
-
-    /* Virtual methods to be implemented by subclass */
-    // create single element to be stored in the storage structure
-    _create: function(item){
-      throw new Error('no implementation of _create in ' + this);
-    },
-
-    // correctly delete single element
-    _remove: function(item){
-      throw new Error('no implementation of _remove in ' + this);
-    }
-});
-
-// Manage global signals
-var GlobalSignalsHandler = new Lang.Class({
-    Name: 'DashToPanel.GlobalSignalsHandler',
-    Extends: BasicHandler,
-
-    _create: function(item) {
-        let handlers = [];
-
-        item[1] = [].concat(item[1]);
-
-        for (let i = 0, l = item[1].length; i < l; ++i) {
-            let object = item[0];
-            let event = item[1][i];
-            let callback = item[2]
-            let id = object.connect(event, callback);
-
-            handlers.push([object, id]);
-        }
-
-        return handlers;
-    },
-
-    _remove: function(item){
-       item[0].disconnect(item[1]);
-    }
-});
-
-/**
- * Manage function injection: both instances and prototype can be overridden
- * and restored
- */
-var InjectionsHandler = new Lang.Class({
-    Name: 'DashToPanel.InjectionsHandler',
-    Extends: BasicHandler,
-
-    _create: function(item) {
-        let object = item[0];
-        let name = item[1];
-        let injectedFunction = item[2];
-        let original = object[name];
-
-        object[name] = injectedFunction;
-        return [[object, name, injectedFunction, original]];
-    },
-
-    _remove: function(item) {
-        let object = item[0];
-        let name = item[1];
-        let original = item[3];
-        object[name] = original;
-    }
-});
-
-/**
- * Manage timeouts: the added timeouts have their id reset on completion
- */
-var TimeoutsHandler = new Lang.Class({
-    Name: 'DashToPanel.TimeoutsHandler',
-    Extends: BasicHandler,
-
-    _create: function(item) {
-        let name = item[0];
-        let delay = item[1];
-        let timeoutHandler = item[2];
-
-        this._remove(item);
-
-        this[name] = Mainloop.timeout_add(delay, () => {
-            this[name] = 0;
-            timeoutHandler();
-        });
-
-        return [[name]];
-    },
-
-    remove: function(name) {
-        this._remove([name])
-    },
-
-    _remove: function(item) {
-        let name = item[0];
-
-        if (this[name]) {
-            Mainloop.source_remove(this[name]);
-            this[name] = 0;
-        }
-    },
-
-    getId: function(name) {
-        return this[name] ? this[name] : 0;
-    }
-});
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/intellihide.js b/intellihide.js
index 3ea44b9..74dfe87 100644
--- a/intellihide.js
+++ b/intellihide.js
@@ -27,7 +27,7 @@ const PointerWatcher = imports.ui.pointerWatcher;
 const Tweener = imports.ui.tweener;
 
 const Me = imports.misc.extensionUtils.getCurrentExtension();
-const Convenience = Me.imports.convenience;
+const Utils = Me.imports.utils;
 
 //timeout intervals
 const CHECK_POINTER_MS = 200;
@@ -48,8 +48,8 @@ var Intellihide = new Lang.Class({
         this._dtpSettings = dtpPanel._dtpSettings;
         this._panelBox = dtpPanel.panelBox;
         
-        this._signalsHandler = new Convenience.GlobalSignalsHandler();
-        this._timeoutsHandler = new Convenience.TimeoutsHandler();
+        this._signalsHandler = new Utils.GlobalSignalsHandler();
+        this._timeoutsHandler = new Utils.TimeoutsHandler();
 
         this._dtpSettings.connect('changed::intellihide', Lang.bind(this, this._changeEnabledStatus));
 
diff --git a/overview.js b/overview.js
index 71e7770..6649352 100644
--- a/overview.js
+++ b/overview.js
@@ -21,7 +21,7 @@
  */
 
 const Me = imports.misc.extensionUtils.getCurrentExtension();
-const Convenience = Me.imports.convenience;
+const Utils = Me.imports.utils;
 const Lang = imports.lang;
 const Main = imports.ui.main;
 const Shell = imports.gi.Shell;
@@ -44,8 +44,8 @@ var dtpOverview = new Lang.Class({
         this._panel = panel;
         this.taskbar = panel.taskbar;
 
-        this._injectionsHandler = new Convenience.InjectionsHandler();
-        this._signalsHandler = new Convenience.GlobalSignalsHandler();
+        this._injectionsHandler = new Utils.InjectionsHandler();
+        this._signalsHandler = new Utils.GlobalSignalsHandler();
 
         // Hide usual Dash
         Main.overview._controls.dash.actor.hide();
diff --git a/panel.js b/panel.js
index 050a391..dd29329 100644
--- a/panel.js
+++ b/panel.js
@@ -30,7 +30,7 @@
 const Me = imports.misc.extensionUtils.getCurrentExtension();
 const Clutter = imports.gi.Clutter;
 const Gtk = imports.gi.Gtk;
-const Convenience = Me.imports.convenience;
+const Utils = Me.imports.utils;
 const Taskbar = Me.imports.taskbar;
 const PanelStyle = Me.imports.panelStyle;
 const Lang = imports.lang;
@@ -175,7 +175,7 @@ var dtpPanel = new Lang.Class({
             this.intellihide = new Intellihide.Intellihide(this);
         });
 
-        this._signalsHandler = new Convenience.GlobalSignalsHandler();
+        this._signalsHandler = new Utils.GlobalSignalsHandler();
         this._signalsHandler.add(
             // Keep dragged icon consistent in size with this dash
             [
@@ -234,7 +234,7 @@ var dtpPanel = new Lang.Class({
 
         // Dynamic transparency is available on Gnome 3.26
         if (this.panel._updateSolidStyle) {
-            this._injectionsHandler = new Convenience.InjectionsHandler();
+            this._injectionsHandler = new Utils.InjectionsHandler();
             this.panel._dtpPosition = this._dtpSettings.get_string('panel-position');
             this.panel._dtpRemoveSolidStyleId = 0;
             this._injectionsHandler.addWithLabel('transparency', [
diff --git a/taskbar.js b/taskbar.js
index 839f991..ba96197 100644
--- a/taskbar.js
+++ b/taskbar.js
@@ -45,7 +45,7 @@ const Util = imports.misc.util;
 const Workspace = imports.ui.workspace;
 
 const Me = imports.misc.extensionUtils.getCurrentExtension();
-const Convenience = Me.imports.convenience;
+const Utils = Me.imports.utils;
 const WindowPreview = Me.imports.windowPreview;
 const AppIcons = Me.imports.appIcons;
 
@@ -184,7 +184,7 @@ var taskbar = new Lang.Class({
         this._shownInitially = false;
 
         this._position = getPosition();
-        this._signalsHandler = new Convenience.GlobalSignalsHandler();
+        this._signalsHandler = new Utils.GlobalSignalsHandler();
 
         this._dragPlaceholder = null;
         this._dragPlaceholderPos = -1;
diff --git a/utils.js b/utils.js
new file mode 100644
index 0000000..3601843
--- /dev/null
+++ b/utils.js
@@ -0,0 +1,180 @@
+/*
+ * This file is part of the Dash-To-Panel extension for Gnome 3
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *
+ * Credits:
+ * This file is based on code from the Dash to Dock extension by micheleg
+ * and code from the Taskbar extension by Zorin OS
+ * Some code was also adapted from the upstream Gnome Shell source code.
+ */
+
+const Lang = imports.lang;
+const Mainloop = imports.mainloop;
+
+// simplify global signals and function injections handling
+// abstract class
+var BasicHandler = new Lang.Class({
+    Name: 'DashToPanel.BasicHandler',
+
+    _init: function(){
+        this._storage = new Object();
+    },
+
+    add: function(/*unlimited 3-long array arguments*/){
+
+        // convert arguments object to array, concatenate with generic
+        let args = Array.concat('generic', Array.slice(arguments));
+        // call addWithLabel with ags as if they were passed arguments
+        this.addWithLabel.apply(this, args);
+    },
+
+    destroy: function() {
+        for( let label in this._storage )
+            this.removeWithLabel(label);
+    },
+
+    addWithLabel: function( label /* plus unlimited 3-long array arguments*/) {
+
+        if(this._storage[label] == undefined)
+            this._storage[label] = new Array();
+
+        // skip first element of the arguments
+        for( let i = 1; i < arguments.length; i++ ) {
+            let item = this._storage[label];
+            let handlers = this._create(arguments[i]);
+
+            for (let j = 0, l = handlers.length; j < l; ++j) {
+                item.push(handlers[j]);
+            }
+        }
+
+    },
+
+    removeWithLabel: function(label){
+
+        if(this._storage[label]) {
+            for( let i = 0; i < this._storage[label].length; i++ ) {
+                this._remove(this._storage[label][i]);
+            }
+
+            delete this._storage[label];
+        }
+    },
+
+    /* Virtual methods to be implemented by subclass */
+    // create single element to be stored in the storage structure
+    _create: function(item){
+      throw new Error('no implementation of _create in ' + this);
+    },
+
+    // correctly delete single element
+    _remove: function(item){
+      throw new Error('no implementation of _remove in ' + this);
+    }
+});
+
+// Manage global signals
+var GlobalSignalsHandler = new Lang.Class({
+    Name: 'DashToPanel.GlobalSignalsHandler',
+    Extends: BasicHandler,
+
+    _create: function(item) {
+        let handlers = [];
+
+        item[1] = [].concat(item[1]);
+
+        for (let i = 0, l = item[1].length; i < l; ++i) {
+            let object = item[0];
+            let event = item[1][i];
+            let callback = item[2]
+            let id = object.connect(event, callback);
+
+            handlers.push([object, id]);
+        }
+
+        return handlers;
+    },
+
+    _remove: function(item){
+       item[0].disconnect(item[1]);
+    }
+});
+
+/**
+ * Manage function injection: both instances and prototype can be overridden
+ * and restored
+ */
+var InjectionsHandler = new Lang.Class({
+    Name: 'DashToPanel.InjectionsHandler',
+    Extends: BasicHandler,
+
+    _create: function(item) {
+        let object = item[0];
+        let name = item[1];
+        let injectedFunction = item[2];
+        let original = object[name];
+
+        object[name] = injectedFunction;
+        return [[object, name, injectedFunction, original]];
+    },
+
+    _remove: function(item) {
+        let object = item[0];
+        let name = item[1];
+        let original = item[3];
+        object[name] = original;
+    }
+});
+
+/**
+ * Manage timeouts: the added timeouts have their id reset on completion
+ */
+var TimeoutsHandler = new Lang.Class({
+    Name: 'DashToPanel.TimeoutsHandler',
+    Extends: BasicHandler,
+
+    _create: function(item) {
+        let name = item[0];
+        let delay = item[1];
+        let timeoutHandler = item[2];
+
+        this._remove(item);
+
+        this[name] = Mainloop.timeout_add(delay, () => {
+            this[name] = 0;
+            timeoutHandler();
+        });
+
+        return [[name]];
+    },
+
+    remove: function(name) {
+        this._remove([name])
+    },
+
+    _remove: function(item) {
+        let name = item[0];
+
+        if (this[name]) {
+            Mainloop.source_remove(this[name]);
+            this[name] = 0;
+        }
+    },
+
+    getId: function(name) {
+        return this[name] ? this[name] : 0;
+    }
+});
\ No newline at end of file
diff --git a/windowPreview.js b/windowPreview.js
index 81f1914..558aa97 100644
--- a/windowPreview.js
+++ b/windowPreview.js
@@ -41,7 +41,6 @@ const Workspace = imports.ui.workspace;
 
 const Me = imports.misc.extensionUtils.getCurrentExtension();
 const Taskbar = Me.imports.taskbar;
-const Convenience = Me.imports.convenience;
 const AppIcons = Me.imports.appIcons;
 
 let HOVER_APP_BLACKLIST = [