Fix some cleanup issues. Better error pages for bad dactyl: URLs. Remove some dead code. Other cleanup.

common/modules/base.jsm

@@ -851,7 +851,7 @@ Class.extend = function extend(subclass, superclass, overrides) {
  *      property's value.
  * @returns {Class.Property}
  */
-Class.memoize = function memoize(getter, wait)
+Class.Memoize = Class.memoize = function Memoize(getter, wait)
     Class.Property({
         configurable: true,
         enumerable: true,
@@ -893,6 +893,19 @@ Class.memoize = function memoize(getter, wait)
         }
     });
 
+/**
+ * Updates the given object with the object in the target class's
+ * prototype.
+ */
+Class.Update = function Update(obj)
+    Class.Property({
+        configurable: true,
+        enumerable: true,
+        init: function (key, target) {
+            this.value = update({}, target[key], obj);
+        }
+    });
+
 Class.replaceProperty = function replaceProperty(obj, prop, value) {
     Object.defineProperty(obj, prop, { configurable: true, enumerable: true, value: value, writable: true });
     return value;

common/modules/bootstrap.jsm

@@ -14,11 +14,6 @@ var BOOTSTRAP_CONTRACT = "@dactyl.googlecode.com/base/bootstrap";
 var JSMLoader = BOOTSTRAP_CONTRACT in Components.classes &&
     Components.classes[BOOTSTRAP_CONTRACT].getService().wrappedJSObject.loader;
 
-if (!JSMLoader && "@mozilla.org/fuel/application;1" in Components.classes)
-    JSMLoader = Components.classes["@mozilla.org/fuel/application;1"]
-                          .getService(Components.interfaces.extIApplication)
-                          .storage.get("dactyl.JSMLoader", null);
-
 if (JSMLoader && JSMLoader.bump === 6)
     JSMLoader.global = this;
 else
@@ -133,6 +128,8 @@ else
         purge: function purge() {
             dump("dactyl: JSMLoader: purge\n");
 
+            this.bootstrap = null;
+
             if (Cu.unload) {
                 Object.keys(this.modules).reverse().forEach(function (url) {
                     try {

common/modules/config.jsm

@@ -309,7 +309,7 @@ var ConfigBase = Class("ConfigBase", {
     version: Class.memoize(function () {
         if (this.VCSPath)
             return io.system(["hg", "-R", this.VCSPath, "log", "-r.",
-                              "--template=hg{rev}." + this.branch]).output;
+                              "--template=hg{rev}-{branch}"]).output;
 
         return this.addon.version;
     }),
@@ -504,13 +504,6 @@ var ConfigBase = Class("ConfigBase", {
      */
     host: null,
 
-    /**
-     * @property {[[]]} An array of application specific mode specifications.
-     *     The values of each mode are passed to modes.addMode during
-     *     dactyl startup.
-     */
-    modes: [],
-
     /**
      * @property {string} The name of the extension.
      *    Required.

common/modules/prefs.jsm

@@ -44,7 +44,7 @@ var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference])
 
     cleanup: function cleanup(reason) {
         if (this.defaults != this)
-            this.defaults.cleanup();
+            this.defaults.cleanup(reason);
 
         this._observers = {};
         if (this.observe) {
@@ -62,7 +62,7 @@ var Prefs = Module("prefs", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference])
                 this.branches.saved.resetBranch();
             }
 
-            if (reason == "uninstall" && this == prefs)
+            if (reason == "uninstall")
                 localPrefs.resetBranch();
         }
     },

common/modules/protocol.jsm

@@ -12,12 +12,10 @@ defineModule("protocol", {
 
 var systemPrincipal = Cc["@mozilla.org/systemprincipal;1"].getService(Ci.nsIPrincipal);
 
-var DNE = "resource://gre/does/not/exist";
-
-function Channel(url, orig, noFake) {
+function Channel(url, orig, noErrorChannel) {
     try {
         if (url == null)
-            return noFake ? null : FakeChannel(orig);
+            return noErrorChannel ? null : NetError(orig);
 
         if (url instanceof Ci.nsIChannel)
             return url;
@@ -29,17 +27,28 @@ function Channel(url, orig, noFake) {
             return let ([type, data] = url) StringChannel(data, type, orig);
 
         let uri = services.io.newURI(url, null, null);
-        return (new XMLChannel(uri, null, noFake)).channel;
+        return (new XMLChannel(uri, null, noErrorChannel)).channel;
     }
     catch (e) {
         util.reportError(e);
+        util.dump(url);
         throw e;
     }
 }
-function FakeChannel(orig) {
-    let channel = services.io.newChannel(DNE, null, null);
-    channel.originalURI = orig;
-    return channel;
+function NetError(orig, error) {
+    return services.InterfacePointer({
+        QueryInterface: XPCOMUtils.generateQI([Ci.nsIChannel]),
+
+        name: orig.spec,
+
+        URI: orig,
+
+        originalURI: orig,
+
+        asyncOpen: function () { throw error || Cr.NS_ERROR_FILE_NOT_FOUND },
+
+        open: function () { throw error || Cr.NS_ERROR_FILE_NOT_FOUND }
+    }).data.QueryInterface(Ci.nsIChannel);
 }
 function RedirectChannel(to, orig, time) {
     let html = <html><head><meta http-equiv="Refresh" content={(time || 0) + ";" + to}/></head></html>.toXMLString();
@@ -68,7 +77,19 @@ function ProtocolBase() {
     this.wrappedJSObject = this;
 
     this.pages = {};
-    this.providers = {};
+    this.providers = {
+        "content": function (uri, path) this.pages[path] || this.contentBase + path,
+
+        "data": function (uri) {
+            var channel = services.io.newChannel(uri.path.replace(/^\/(.*)(?:#.*)?/, "data:$1"),
+                                                 null, null);
+
+            channel.contentCharset = "UTF-8";
+            channel.owner = systemPrincipal;
+            channel.originalURI = uri;
+            return channel;
+        }
+    };
 }
 ProtocolBase.prototype = {
     get contractID()        "@mozilla.org/network/protocol;1?name=" + this.scheme,
@@ -92,34 +113,17 @@ ProtocolBase.prototype = {
         try {
             uri.QueryInterface(Ci.nsIURL);
 
+            let path = decodeURIComponent(uri.filePath.substr(1));
             if (uri.host in this.providers)
-                return Channel(this.providers[uri.host](uri, uri.filePath.substr(1)), uri);
+                return Channel(this.providers[uri.host].call(this, uri, path),
+                               uri);
 
-            let path = decodeURIComponent(uri.path.replace(/^\/|#.*/g, ""));
-            switch(uri.host) {
-            case "content":
-                return Channel(this.pages[path] || this.contentBase + path, uri);
-            case "data":
-                try {
-                    var channel = services.io.newChannel(uri.path.replace(/^\/(.*)(?:#.*)?/, "data:$1"),
-                                                         null, null);
-                }
-                catch (e) {
-                    var error = e;
-                    break;
-                }
-                channel.contentCharset = "UTF-8";
-                channel.owner = systemPrincipal;
-                channel.originalURI = uri;
-                return channel;
-            }
+            return NetError(uri);
         }
         catch (e) {
             util.reportError(e);
+            throw e;
         }
-        if (error)
-            throw error;
-        return FakeChannel(uri);
     }
 };
 
@@ -131,7 +135,7 @@ function LocaleChannel(pkg, locale, path, orig) {
                 return channel;
         }
 
-    return FakeChannel(orig);
+    return NetError(orig);
 }
 
 function StringChannel(data, contentType, uri) {
@@ -146,13 +150,13 @@ function StringChannel(data, contentType, uri) {
     return channel;
 }
 
-function XMLChannel(uri, contentType, noFake) {
+function XMLChannel(uri, contentType, noErrorChannel) {
     try {
         var channel = services.io.newChannelFromURI(uri);
         var channelStream = channel.open();
     }
     catch (e) {
-        this.channel = noFake ? null : FakeChannel(uri);
+        this.channel = noErrorChannel ? null : NetError(uri);
         return;
     }
 

common/modules/styles.jsm

@@ -254,12 +254,14 @@ var Styles = Module("Styles", {
         this.cleanup();
         this.allSheets = {};
 
-        services["dactyl:"].providers["style"] = function styleProvider(uri) {
-            let id = /^\/(\d*)/.exec(uri.path)[1];
-            if (Set.has(styles.allSheets, id))
-                return ["text/css", styles.allSheets[id].fullCSS];
-            return null;
-        };
+        update(services["dactyl:"].providers, {
+            "style": function styleProvider(uri, path) {
+                let id = parseInt(path);
+                if (Set.has(styles.allSheets, id))
+                    return ["text/css", styles.allSheets[id].fullCSS];
+                return null;
+            }
+        });
     },
 
     cleanup: function cleanup() {

common/modules/util.jsm

@@ -1589,8 +1589,8 @@ var DOM = Class("DOM", {
 
     attrHooks: array.toObject([
         ["", {
-            href: { get: function (elem) elem.href },
-            src:  { get: function (elem) elem.src }
+            href: { get: function (elem) elem.href || elem.getAttribute("href") },
+            src:  { get: function (elem) elem.src || elem.getAttribute("src") }
         }]
     ]),
 
@@ -1843,7 +1843,7 @@ var DOM = Class("DOM", {
      */
     get style() {
         let node = this[0];
-        while (!(node instanceof Ci.nsIDOMElement) && node.parentNode)
+        while (node && !(node instanceof Ci.nsIDOMElement) && node.parentNode)
             node = node.parentNode;
 
         try {