JSOff.uc.xul

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE overlay>
<overlay id="jsoff-overlay" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

    <script type="application/x-javascript"><![CDATA[

if ("undefined" == typeof(jsoffNamespace)) {
	var jsoffNamespace = {};
};

jsoffNamespace.ON_IMG = "data:image/gif;base64,R0lGODlhEAAQAPYAAAAAAAiAAAmGAAmOAAqWAAueAAuiAAumAAuoAAukAAmEAABSAQBcAgmMAAmIAABYAof%2FOQqSAABeAgEBARNAABVCAAqYAAqaAAyyAAy6ABKgAAyuAAqcAAy0ABG%2BABfGAAywAA28ABbEAAMuAAMmAAMqAAMsAAy2AAysAAAEAFL%2BAFv%2FFYH%2FNwdyAAMMAHr%2FMwugAAACAEjwABZKAAMKACh8AD7OAAEQAABUAQh4AAAWAAUOAD7QAIb%2FN3T%2FMTWwAAIFAQRCAABIAQduAAA2AQAcAAEUAAVIAAmKAABKAQBGAQBCAQdmAAp0AAh6AAmCAAh0AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAFEALAAAAAAQABAAAAifAAEIHEiwoEAHCC1YQMAQwUILCAXmwIHDIEEHB3EgANCjo8eOACwItKBxIIWOFAaKBOBgIYIMKDj2CMlwpcKXHj7IBOAhg8ODLjPoBOnzZ0gSSEl42Fl0JUYVKwBk2FnT6c4cHF8AqIkRAFYVPVLW6GHjhkIcXXPcAGDjRY8XPwAogagEq1ciJAjeUOJAiV%2B7TJjkGIywsIPBTCwqFhgQADs%3D";

jsoffNamespace.OFF_IMG = "data:image/gif;base64,R0lGODlhEAAQAPYAAAAAAP8UCf8hF%2F8yKf8%2BNf9GOf9IO%2F9KPf8cEbAEAMoEAP8vJf8jGcAEAP%2FR0f88M%2F8tI8wEAAEBAV0TE18TE%2F9AN%2F9OQf9QQ%2F9HP%2F9EN%2F9MP%2F9COf9TR%2F9bT14EAFAFAFgEAFwEAAgAAP%2BRkf%2Bdnf%2FPzwYAAP%2FLy%2BwKAA8DA%2F%2B9vQIAAP%2BJiWkVFREBAbQkJP9hYSACALYEAPgLADABABAEBP9paf%2B%2Fv%2F%2FNzf%2Bzs%2F8xMQYCAooGAKAAAOQKAHoCADwBAAoAAAQAACoCAJgKAP8nHaQAAJgDAJADANQJAOIKAPAQAPwLAP8WC%2F8fFe4LAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAFAALAAAAAAQABAAAAiqAAEIHEiwoEAmThZkWMiQ4QInAp0YiWCQYJGIETIAcMCxI0cAOgQuyDhwAscJAzUCUIiBAweNHzNgWCiSIYcOGx0AcDmzZkuXOXcyFFjEAxAQIDgEzfAyJACIJEgAwBB0Jk0ATQCc0MlkowqhGRYcBMDCQQsALxzYiJFBRwOIAJjQAGBDxQkVF3mEPdIVAIofQAjGOCLxCF%2BBEZYwWYzQiZMmi1GgqEhZYEAAOw%3D%3D";

jsoffNamespace.jsStatus = function () {
	var prefManager = Components.classes["@mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefBranch);

	return {
		startup : function(){
			this.setStatusBar();
		},

		// run this onClick from the status bar
		run : function () {
			var jsEnabled = prefManager.getBoolPref("javascript.enabled");
			prefManager.setBoolPref("javascript.enabled", !jsEnabled);
			// change propogation handled in observer, don't need to call setStatusBar here
		},

		// something changed, update UI
		setStatusBar : function(){
			var statusBar = document.getElementById('jsoff-statusbar');
			var jsEnabled = prefManager.getBoolPref("javascript.enabled");
			statusBar.src = jsEnabled ? jsoffNamespace.ON_IMG : jsoffNamespace.OFF_IMG;
		}
	};
}();
/*** jsStatus ***/



// This handles watching preferences for changes to javascript options
jsoffNamespace.myPrefObserver =
{
  register: function()
  {
    // First we'll need the preference services to look for preferences.
    var prefService = Components.classes["@mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefService);

    // For this._branch we ask that the preferences for extensions.myextension. and children
    this._branch = prefService.getBranch("javascript.");

    // Now we queue the interface called nsIPrefBranch2. This interface is described as:
    // "nsIPrefBranch2 allows clients to observe changes to pref values."
    this._branch.QueryInterface(Components.interfaces.nsIPrefBranch2);

    // Finally add the observer.
    this._branch.addObserver("", this, false);
  },

  unregister: function()
  {
    if(!this._branch) return;
    this._branch.removeObserver("", this);
  },

  observe: function(aSubject, aTopic, aData)
  {
    if(aTopic != "nsPref:changed") return;
    // aSubject is the nsIPrefBranch we're observing (after appropriate QI)
    // aData is the name of the pref that's been changed (relative to aSubject)
    switch (aData) {
      case "enabled":
        jsoffNamespace.jsStatus.setStatusBar();
        break;
    }
  }
}

jsoffNamespace.myPrefObserver.register();
window.addEventListener("load", function(e) { jsoffNamespace.jsStatus.startup(); }, false);

]]></script>
 <statusbar id="status-bar">
  <statusbarpanel id="jsoff-statusbar" class="statusbarpanel-menu-iconic" tooltiptext="Javascript 启用/禁用" src="data:image/gif;base64,R0lGODlhEAAQAPYAAAAAAAiAAAmGAAmOAAqWAAueAAuiAAumAAuoAAukAAmEAABSAQBcAgmMAAmIAABYAof%2FOQqSAABeAgEBARNAABVCAAqYAAqaAAyyAAy6ABKgAAyuAAqcAAy0ABG%2BABfGAAywAA28ABbEAAMuAAMmAAMqAAMsAAy2AAysAAAEAFL%2BAFv%2FFYH%2FNwdyAAMMAHr%2FMwugAAACAEjwABZKAAMKACh8AD7OAAEQAABUAQh4AAAWAAUOAD7QAIb%2FN3T%2FMTWwAAIFAQRCAABIAQduAAA2AQAcAAEUAAVIAAmKAABKAQBGAQBCAQdmAAp0AAh6AAmCAAh0AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAFEALAAAAAAQABAAAAifAAEIHEiwoEAHCC1YQMAQwUILCAXmwIHDIEEHB3EgANCjo8eOACwItKBxIIWOFAaKBOBgIYIMKDj2CMlwpcKXHj7IBOAhg8ODLjPoBOnzZ0gSSEl42Fl0JUYVKwBk2FnT6c4cHF8AqIkRAFYVPVLW6GHjhkIcXXPcAGDjRY8XPwAogagEq1ciJAjeUOJAiV%2B7TJjkGIywsIPBTCwqFhgQADs%3D" onclick="jsoffNamespace.jsStatus.run()" />
 </statusbar>

</overlay>