Load styles with a chrome security principal. Fix default objects in JS completion. Don't echo during :map <silent>

components/chrome-data.js

@@ -0,0 +1,82 @@
+/* Adds support for data: URIs with chrome privileges
+ * and fragment identifiers.
+ *
+ * "chrome-data:" <content-type> [; <flag>]* "," [<data>]
+ *
+ * By Kris Maglione, ideas from Ed Anuff's nsChromeExtensionHandler.
+ *
+ * Licenced under the MIT License, which allows for sublicensing
+ * under any compatible license, includeing the GNU GPL and the MPL.
+ */
+
+Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
+
+const NS_BINDING_ABORTED = 0x804b0002;
+const nsIProtocolHandler = Components.interfaces.nsIProtocolHandler;
+
+const ioService = Components.classes["@mozilla.org/network/io-service;1"]
+                            .getService(Components.interfaces.nsIIOService);
+
+let channel = Components.classesByID["{61ba33c0-3031-11d3-8cd0-0060b0fc14a3}"]
+                        .getService(Components.interfaces.nsIProtocolHandler)
+                        .newChannel(ioService.newURI("chrome://liberator/content/data", null, null))
+                        .QueryInterface(Components.interfaces.nsIRequest);
+const systemPrincipal = channel.owner;
+channel.cancel(NS_BINDING_ABORTED);
+delete channel;
+
+var instance;
+function ChromeData() {
+}
+ChromeData.prototype = {
+    contractID:       "@mozilla.org/network/protocol;1?name=chrome-data",
+    classID:          Components.ID("{c1b67a07-18f7-4e13-b361-2edcc35a5a0d}"),
+    classDescription: "Data URIs with chrome privileges",
+    QueryInterface:   XPCOMUtils.generateQI([Components.interfaces.nsIProtocolHandler]),
+    _xpcom_factory: {
+	createInstance: function(outer, iid) {
+	    if(!instance)
+		instance = new ChromeData();
+	    if(outer != null)
+		throw Components.results.NS_ERROR_NO_AGGREGATION;
+	    return instance.QueryInterface(iid);
+	}
+    },
+
+    scheme: "chrome-data",
+    defaultPort: -1,
+    allowPort: function(port, scheme) false,
+    protocolFlags: nsIProtocolHandler.URI_NORELATIVE
+		 | nsIProtocolHandler.URI_NOAUTH
+		 | nsIProtocolHandler.URI_IS_UI_RESOURCE,
+
+    newURI: function(spec, charset, baseURI) {
+        var uri = Components.classes["@mozilla.org/network/standard-url;1"]
+                            .createInstance(Components.interfaces.nsIStandardURL)
+                            .QueryInterface(Components.interfaces.nsIURI);
+        uri.init(1, -1, spec, charset, null);
+        return uri;
+    },
+
+    newChannel: function(uri) {
+        try
+	{
+            if (uri.scheme == this.scheme) {
+                let newURI = ioService.newURI(uri.spec.replace(/^.*?:\/*(.*)(?:#.*)?/, "data:$1"), null, null);
+                let channel = ioService.newChannelFromURI(newURI);
+                channel.owner = systemPrincipal;
+                channel.originalURI = uri;
+                return channel;
+            }
+        }
+	catch (e) {}
+        throw Components.results.NS_ERROR_FAILURE;
+    }
+};
+
+var components = [ChromeData];
+
+function NSGetModule(compMgr, fileSpec) {
+  return XPCOMUtils.generateModule(components);
+}
+

content/buffer.js

@@ -73,7 +73,7 @@ function Buffer() //{{{
                           "@namespace xul url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);\n";
         const Sheet = new Struct("name", "sites", "css", "ref");
 
-        let cssUri = function (css) "data:text/css," + encodeURI(css);
+        let cssUri = function (css) "chrome-data:text/css," + encodeURI(css);
 
         let userSheets = [];
         let systemSheets = [];
@@ -259,7 +259,7 @@ function Buffer() //{{{
             }
             if (errors.length)
             {
-                let err = new Error("", errors[0].sourceName.replace(/^(data:text\/css,).*/, "$1..."), errors[0].lineNumber);
+                let err = new Error("", errors[0].sourceName.replace(/^(chrome-data:text\/css,).*/, "$1..."), errors[0].lineNumber);
                 err.name = "CSSError"
                 err.message = errors.reduce(function (msg, e) msg + "; " + e.lineNumber + ": " + e.errorMessage, errors.shift().errorMessage);
                 err.echoerr = err.fileName + ":" + err.lineNumber + ": " + err.message;

content/completion.js

@@ -410,7 +410,7 @@ function Completion() //{{{
                 let end = (frame == -1 ? lastIdx : get(frame + 1)[OFFSET]);
 
                 cacheKey = null;
-                let obj = [liberator, window]; // Default objects;
+                let obj = [modules, window]; // Default objects;
                 /* Is this an object dereference? */
                 if (dot < statement) // No.
                     dot = statement - 1;

content/io.js

@@ -798,8 +798,11 @@ lookup:
                     }
                     catch (e)
                     {
-                        e.echoerr = file.path + ":" + e.lineNumber + ": " + e;
-                        throw e;
+                        let err = new Error();
+                        for (let [k, v] in Iterator(e))
+                            err[k] = v;
+                        err.echoerr = file.path + ":" + e.lineNumber + ": " + e;
+                        throw err;
                     }
                 }
                 else if (/\.css$/.test(filename))

content/ui.js

@@ -621,6 +621,8 @@ function CommandLine() //{{{
             var focused = document.commandDispatcher.focusedElement;
             if (focused && focused == commandWidget.inputField || focused == multilineInputWidget.inputField)
                 return false;
+            if (silent)
+                return false;
 
             highlightGroup = highlightGroup || this.HL_NORMAL;