Fix some bugs, generally.

common/content/completion.js

@@ -726,22 +726,22 @@ function Completion() //{{{
 
         this.completers = {};
 
+        // Some object members are only accessible as function calls
+        function getKey(obj, key)
+        {
+            try
+            {
+                return obj[key];
+            }
+            catch (e)
+            {
+                return undefined;
+            }
+        }
+
         this.iter = function iter(obj)
         {
-            let iterator = (function objIter()
-            {
-                for (let k in obj)
-                {
-                    // Some object members are only accessible as function calls
-                    try
-                    {
-                        yield [k, obj[k]];
-                        continue;
-                    }
-                    catch (e) {}
-                    yield [k, <>inaccessable</>]
-                }
-            })();
+            let iterator = ([k, getKey(obj, k)] for (k in obj));
             try
             {
                 // The point of 'for k in obj' is to get keys
@@ -781,21 +781,21 @@ function Completion() //{{{
             // available in the object itself.
             let orig = obj;
 
-            // v[0] in orig and orig[v[0]] catch different cases. XPCOM
-            // objects are problematic, to say the least.
             if (modules.isPrototypeOf(obj))
                 compl = [v for (v in Iterator(obj))];
             else
             {
-                if (obj.wrappedJSObject)
+                if (getKey(obj, 'wrappedJSObject'))
                     obj = obj.wrappedJSObject;
+                // v[0] in orig and orig[v[0]] catch different cases. XPCOM
+                // objects are problematic, to say the least.
                 compl = [v for (v in this.iter(obj))
-                    if ((typeof orig == "object" && v[0] in orig) || orig[v[0]] !== undefined)];
+                    if ((typeof orig == "object" && v[0] in orig) || getKey(orig, v[0]) !== undefined)];
             }
 
             // And if wrappedJSObject happens to be available,
             // return that, too.
-            if (orig.wrappedJSObject)
+            if (getKey(orig, 'wrappedJSObject'))
                 compl.push(["wrappedJSObject", obj]);
 
             // Add keys for sorting later.

common/content/liberator.js

@@ -121,7 +121,7 @@ const liberator = (function () //{{{
                     let class = dir.map(function (dir) "html|html > xul|scrollbar[orient=" + dir + "]");
 
                     if (class.length)
-                        styles.addSheet(true, "scrollbar", "*", class.join(", ") + " { visibility: collapse !important; }");
+                        styles.addSheet(true, "scrollbar", "*", class.join(", ") + " { visibility: collapse !important; }", true);
                     else
                         styles.removeSheet(true, "scrollbar");
                     options.safeSetPref("layout.scrollbar.side", opts.indexOf("l") >= 0 ? 3 : 2);

common/content/style.js

@@ -182,7 +182,7 @@ function Highlights(name, store, serial)
         {
             css = style.selector + " { " + css + " }";
 
-            let error = styles.addSheet(true, style.selector, style.filter, css);
+            let error = styles.addSheet(true, style.selector, style.filter, css, true);
             if (error)
                 return error;
         }
@@ -235,6 +235,7 @@ function Highlights(name, store, serial)
                 this.set(class);
         }
     };
+    this.reload();
 }
 
 /**
@@ -257,7 +258,7 @@ function Styles(name, store, serial)
     const namespace = '@namespace html "' + XHTML + '";\n' +
                       '@namespace xul "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";\n' +
                       '@namespace liberator "' + NS.uri + '";\n';
-    const Sheet = new Struct("name", "sites", "css", "ref");
+    const Sheet = new Struct("name", "sites", "css", "ref", "agent");
 
     let cssUri = function (css) "chrome-data:text/css," + window.encodeURI(css);
 
@@ -285,7 +286,7 @@ function Styles(name, store, serial)
      *     "*" is matched as a prefix.
      * @param {string} css The CSS to be applied.
      */
-    this.addSheet = function (system, name, filter, css)
+    this.addSheet = function (system, name, filter, css, agent)
     {
         let sheets = system ? systemSheets : userSheets;
         let names = system ? systemNames : userNames;
@@ -294,7 +295,7 @@ function Styles(name, store, serial)
 
         let sheet = sheets.filter(function (s) s.sites.join(",") == filter && s.css == css)[0];
         if (!sheet)
-            sheet = new Sheet(name, filter.split(",").filter(util.identity), css, null);
+            sheet = new Sheet(name, filter.split(",").filter(util.identity), css, null, agent);
 
         if (sheet.ref == null) // Not registered yet
         {
@@ -302,7 +303,8 @@ function Styles(name, store, serial)
             try
             {
                 this.registerSheet(cssUri(wrapCSS(sheet)));
-                this.registerAgentSheet(cssUri(wrapCSS(sheet)))
+                if (sheet.agent)
+                    this.registerAgentSheet(cssUri(wrapCSS(sheet)))
             }
             catch (e)
             {
@@ -410,7 +412,7 @@ function Styles(name, store, serial)
             {
                 let sites = sheet.sites.filter(function (f) f != filter);
                 if (sites.length)
-                    this.addSheet(system, name, sites.join(","), css);
+                    this.addSheet(system, name, sites.join(","), css, sheet.agent);
             }
         }
         return matches.length;
@@ -514,8 +516,11 @@ const styles = storage.newObject("styles", Styles, false);
  */
 const highlight = storage.newObject("highlight", Highlights, false);
 
-highlight.CSS = Highlights.prototype.CSS;
-highlight.reload();
+if (highlight.CSS != Highlights.prototype.CSS)
+{
+    highlight.CSS = Highlights.prototype.CSS;
+    highlight.reload();
+}
 
 liberator.triggerObserver("load_styles", "styles");
 liberator.triggerObserver("load_highlight", "highlight");

common/content/template.js

@@ -133,9 +133,9 @@ const template = {
     highlight: function highlight(arg, processStrings, clip)
     {
         // some objects like window.JSON or getBrowsers()._browsers need the try/catch
-        let str = clip ? util.clip(String(arg), clip) : String(arg);
         try
         {
+            let str = clip ? util.clip(String(arg), clip) : String(arg);
             switch (arg == null ? "undefined" : typeof arg)
             {
                 case "number":

common/content/ui.js

@@ -997,10 +997,9 @@ function CommandLine() //{{{
         set silent(val)
         {
             silent = val;
-            if (silent)
-                storage.styles.addSheet(true, "silent-mode", "chrome://*", "#liberator-commandline > * { opacity: 0 }");
-            else
-                storage.styles.removeSheet(true, "silent-mode");
+            Array.forEach(document.getElementById("liberator-commandline").childNodes, function (node) {
+                node.style.opacity = silent ? "0" : "";
+            });
         },
 
         runSilently: function (fn, self)

common/content/util.js

@@ -672,6 +672,13 @@ const util = { //{{{
     xmlToDom: function xmlToDom(node, doc, nodes)
     {
         XML.prettyPrinting = false;
+        if (node.length() != 1)
+        {
+            let domnode = doc.createDocumentFragment();
+            for each (let child in node)
+                domnode.appendChild(arguments.callee(child, doc, nodes));
+            return domnode;
+        }
         switch (node.nodeKind())
         {
             case "text":