From 2a1532fca63583ff325ea74c42821f89c05bac05 Mon Sep 17 00:00:00 2001
From: Kris Maglione <maglione.k@gmail.com>
Date: Wed, 29 Dec 2010 11:10:25 -0500
Subject: [PATCH] Fix scrolling bug.

---
 common/content/commandline.js | 11 ++++++++---
 common/modules/util.jsm       |  4 +++-
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/common/content/commandline.js b/common/content/commandline.js
index 72a6ce8c..c7de5827 100644
--- a/common/content/commandline.js
+++ b/common/content/commandline.js
@@ -33,7 +33,7 @@ var CommandWidgets = Class("CommandWidgets", {
 
                 <vbox id={config.commandContainer}>
 
-                    <vbox class="dactyl-container" hidden="false" collapsed="true">
+                    <vbox class="dactyl-container" id="dactyl-multiline-output-container" hidden="false" collapsed="true">
                         <iframe id="dactyl-multiline-output" src="chrome://dactyl/content/buffer.xhtml"
                                 flex="1" hidden="false" collapsed="false"
                                 contextmenu="dactyl-contextmenu"
@@ -274,7 +274,7 @@ var CommandWidgets = Class("CommandWidgets", {
         return elem;
     }),
     multilineInput: Class.memoize(function () document.getElementById("dactyl-multiline-input")),
-    mowContainer: Class.memoize(function () this.multilineOutput.parentNode)
+    mowContainer: Class.memoize(function () document.getElementById("dactyl-multiline-output-container"))
 }, {
     getEditor: function (elem) {
         elem.inputField.QueryInterface(Ci.nsIDOMNSEditableElement);
@@ -541,7 +541,12 @@ var CommandLine = Module("commandline", {
         set: function (value) { this.widgets.multilineInput.collapsed = !value; }
     }),
     multilineOutputVisible: Modes.boundProperty({
-        set: function (value) { (this.widgets.mowContainer || {}).collapsed = !value; }
+        set: function (value) {
+            this.widgets.mowContainer.collapsed = !value;
+            let elem = this.widgets.multilineOutput;
+            if (!value && elem && elem.contentWindow == document.commandDispatcher.focusedWindow)
+                document.commandDispatcher.focusedWindow = content;
+        }
     }),
 
     /**
diff --git a/common/modules/util.jsm b/common/modules/util.jsm
index e46f78a4..1cdf4396 100644
--- a/common/modules/util.jsm
+++ b/common/modules/util.jsm
@@ -330,13 +330,15 @@ var Util = Module("Util", XPCOM([Ci.nsIObserver, Ci.nsISupportsWeakReference]),
                 let quote = util.identity;
                 if (flags.q)
                     quote = function quote(obj) typeof obj === "number" ? obj : String.quote(obj);
+                if (flags.e)
+                    quote = function quote(obj) "";
 
                 if (set.has(defaults, name))
                     stack.top.elements.push(quote(defaults[name]));
                 else {
                     stack.top.elements.push(update(
                         function (obj) obj[name] != null ? quote(obj[name]) : set.has(obj, name) ? "" : unknown(full),
-                        { test: function (obj) obj[name] != null && obj[name] !== false }));
+                        { test: function (obj) obj[name] != null && obj[name] !== false && (!flags.e || obj[name] != "") }));
 
                     for (let elem in array.iterValues(stack))
                         elem.seen[name] = true;