From 372aa4eee4e9b0b0a930d83a378502e9cec2e786 Mon Sep 17 00:00:00 2001
From: Einar Egilsson
Date: Fri, 16 Oct 2009 08:11:33 +0000
Subject: Greatly simplified XPCOM plumbing

git-svn-id: http://einaregilsson.googlecode.com/svn/mozilla/redirector/trunk@270 119bf307-c92d-0410-89bd-8f53e6181181
---
 components/redirector.component.js | 118 ++++++++-----------------------------
 1 file changed, 24 insertions(+), 94 deletions(-)

(limited to 'components')

diff --git a/components/redirector.component.js b/components/redirector.component.js
index bebae88..6dce455 100644
--- a/components/redirector.component.js
+++ b/components/redirector.component.js
@@ -1,112 +1,42 @@
 //// $Id$
-const CSSB_CONTRACTID = "@einaregilsson.com/redirector;1";
-const CSSB_CID = Components.ID("{b7a7a54f-0581-47ff-b086-d6920cb7a3f7}");
 
-var Cc = Components.classes;
-var Ci = Components.interfaces;
-var Cr = Components.results;
-var nsIContentPolicy = Ci.nsIContentPolicy;
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+Ci = Components.interfaces;
+Cr = Components.results;
+Cc = Components.classes;
+const loader = Cc["@mozilla.org/moz/jssubscript-loader;1"].getService(Ci.mozIJSSubScriptLoader);
 
 function Redirector() {
 	this.init();
+	this.wrappedJSObject = this;
 }
 
-const loader = Cc["@mozilla.org/moz/jssubscript-loader;1"].getService(Ci.mozIJSSubScriptLoader);
-	
 try {
 	loader.loadSubScript('chrome://redirector/content/code/redirector.prototype.js');
 	loader.loadSubScript('chrome://redirector/content/code/redirect.js');
 	loader.loadSubScript('chrome://redirector/content/code/prefs.js');
 } catch(e) {
-	for (i in e) 
+	for (i in e) {
 		Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService).logStringMessage('REDIRECTOR: Loading Redirector implementation failed: ' + i + e[i]);
+	}
 }
-/*
- * Factory object
- */
-
-var redirectorInstance = null;
-
-const factory = {
-    // nsIFactory interface implementation
-    createInstance: function(outer, iid) {
 
-		if (outer != null) {
-			Components.returnCode = Cr.NS_ERROR_NO_AGGREGATION;
-			return null;
-		}
-	    dump("\n\nCreateInstance:\n");
-        if (!(iid.equals(Ci.nsIContentPolicy) || iid.equals(Ci.nsISupports) || iid.equals(Ci.nsIChannelEventSink))) {
-            Components.returnCode = Cr.NS_ERROR_NO_INTERFACE;          
-            return null;
-        }
-        dump("\n  IID: " + iid);
-        dump("\n");
-        dump("\n  nsIContentPolicy: " + iid.equals(Ci.nsIContentPolicy));
-        dump("\n  nsISupports: " + iid.equals(Ci.nsISupports));
-        dump("\n  nsIChannelEventSink: " + iid.equals(Ci.nsIChannelEventSink));
-        if(!redirectorInstance) {
-            redirectorInstance = new Redirector();
-            redirectorInstance.wrappedJSObject = redirectorInstance;
-        }
-
-        return redirectorInstance;
-    },
-
-    // nsISupports interface implementation
-    QueryInterface: function(iid) {
-        if (iid.equals(Ci.nsISupports) || iid.equals(Ci.nsIModule) || iid.equals(Ci.nsIFactory)) {
-            return this;
-        }
-        Components.returnCode = Cr.NS_ERROR_NO_INTERFACE;          
-        return null;   
-    }
-}
+//Add the xpcom stuff to the prototype
+var xpcomInfo = Redirector.prototype;
+xpcomInfo.classDescription 	= "Redirector Component";
+xpcomInfo.classID 			= Components.ID("{b7a7a54f-0581-47ff-b086-d6920cb7a3f7}");
+xpcomInfo.contractID 		= "@einaregilsson.com/redirector;1";
+xpcomInfo._xpcom_categories = [{category:'content-policy'},{category:'net-channel-event-sinks'}];
+xpcomInfo.QueryInterface 	= XPCOMUtils.generateQI([Ci.nsIContentPolicy, Ci.nsIChannelEventSink]);
+xpcomInfo._xpcom_factory 	= {
+	createInstance: function(outer, iid) {
+		if (outer) throw Cr.NS_ERROR_NO_AGGREGATION;
+		return redirector.QueryInterface(iid);
+	}
+};
 
-Redirector.prototype.QueryInterface = function(iid) {
-    if (iid.equals(Ci.nsISupports) || iid.equals(Ci.nsIChannelEventSink) || iid.equals(Ci.nsIContentPolicy)) {
-        return this;
-    }
-    Components.returnCode = Cr.NS_ERROR_NO_INTERFACE;          
-    return null;   
+function NSGetModule(compMgr, fileSpec) {
+	return XPCOMUtils.generateModule([Redirector]);
 }
 
-/*
- * Module object
- */
-const module = {
-    registerSelf : function(compMgr, fileSpec, location, type) {
-        compMgr = compMgr.QueryInterface(Ci.nsIComponentRegistrar);
-        compMgr.registerFactoryLocation(CSSB_CID, 
-                                        "Redirector content policy",
-                                        CSSB_CONTRACTID,
-                                        fileSpec, location, type);
-        var catman = Cc["@mozilla.org/categorymanager;1"].getService(Ci.nsICategoryManager);
-        catman.addCategoryEntry("net-channel-event-sinks", CSSB_CONTRACTID, CSSB_CONTRACTID, true, true);
-        catman.addCategoryEntry("content-policy", CSSB_CONTRACTID, CSSB_CONTRACTID, true, true);
-    },
-
-    unregisterSelf: function(compMgr, fileSpec, location) {
-        compMgr.QueryInterface(Ci.nsIComponentRegistrar).unregisterFactoryLocation(CSSB_CID, fileSpec);
-        Cc["@mozilla.org/categorymanager;1"].getService(Ci.nsICategoryManager).deleteCategoryEntry("content-policy", CSSB_CONTRACTID, true);
-        Cc["@mozilla.org/categorymanager;1"].getService(Ci.nsICategoryManager).deleteCategoryEntry("net-channel-event-sinks", CSSB_CONTRACTID, true);
-    },
-
-    getClassObject: function(compMgr, cid, iid) {
-	    dump("\nGetClassObject: " + cid + ", iid: " + iid);
-        if (cid.equals(CSSB_CID)) {
-            return factory;
-        }
-
-        Components.returnCode = Cr.NS_ERROR_NOT_REGISTERED;
-        return null;
-    },
-
-    canUnload: function(compMgr) {
-        return true;
-    }
-};
-
-function NSGetModule(comMgr, fileSpec) {
-    return module;
-}
\ No newline at end of file
+const redirector = new Redirector();
-- 
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