Improved: Code formatting.

Popup/ApplicationDelegate.m

@@ -41,7 +41,7 @@ - (void)applicationDidFinishLaunching:(NSNotification *)notification
 
 - (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
 {
-    // Remove the icon from the menu bar
+    // Explicitly remove the icon from the menu bar
     self.menubarController = nil;
 
     return NSTerminateNow;

Popup/BackgroundView.m

@@ -8,6 +8,8 @@
 
 #define SEARCH_INSET 10
 
+#pragma mark -
+
 @implementation BackgroundView
 
 @synthesize arrowX = _arrowX;

Popup/MenubarController.m

@@ -9,7 +9,8 @@ @implementation MenubarController
 
 - (id)init
 {
-    if ((self = [super init]))
+    self = [super init];
+    if (self != nil)
     {
         // Install status item into the menu bar
         NSStatusItem *statusItem = [[NSStatusBar systemStatusBar] statusItemWithLength:STATUS_ITEM_VIEW_WIDTH];
@@ -33,8 +34,7 @@ - (void)dealloc
 
 - (NSStatusItem *)statusItem
 {
-    NSStatusItem *item = self.statusItemView.statusItem;
-    return item;
+    return self.statusItemView.statusItem;
 }
 
 #pragma mark -

Popup/Panel.m

@@ -4,12 +4,7 @@ @implementation Panel
 
 - (BOOL)canBecomeKeyWindow;
 {
-    return YES;
-}
-
-- (void)flagsChanged:(NSEvent *)theEvent;
-{
-    [[self contentView] setNeedsDisplay:YES];
+    return YES; // Allow Search field to become the first responder
 }
 
 @end

Popup/PanelController.h

@@ -34,6 +34,5 @@
 - (void)openPanel;
 - (void)closePanel;
 - (NSRect)statusRectForWindow:(NSWindow *)window;
-- (void)resetPanelHeight;
 
 @end

Popup/PanelController.m

@@ -26,7 +26,7 @@ @implementation PanelController
 - (id)initWithDelegate:(id<PanelControllerDelegate>)delegate
 {
     self = [super initWithWindowNibName:@"Panel"];
-    if (self)
+    if (self != nil)
     {
         _delegate = delegate;
     }
@@ -53,9 +53,12 @@ - (void)awakeFromNib
     [panel setOpaque:NO];
     [panel setBackgroundColor:[NSColor clearColor]];
 
-    [self resetPanelHeight];
+    // Resize panel
+    NSRect panelRect = [[self window] frame];
+    panelRect.size.height = POPUP_HEIGHT;
+    [[self window] setFrame:panelRect display:NO];
 
-    // Track search results
+    // Follow search string
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(runSearch) name:NSControlTextDidChangeNotification object:self.searchField];
 }
 
@@ -247,11 +250,4 @@ - (void)closePanel
     });
 }
 
-- (void)resetPanelHeight
-{
-    NSRect panelRect = [[self window] frame];
-    panelRect.size.height = POPUP_HEIGHT;
-    [[self window] setFrame:panelRect display:NO];
-}
-
 @end

Popup/Popup-Info.plist

@@ -25,7 +25,7 @@
 	<key>CFBundleURLTypes</key>
 	<array/>
 	<key>CFBundleVersion</key>
-	<string>3</string>
+	<string>4</string>
 	<key>LSApplicationCategoryType</key>
 	<string>public.app-category.utilities</string>
 	<key>LSMinimumSystemVersion</key>

Popup/StatusItemView.m

@@ -16,7 +16,9 @@ - (id)initWithStatusItem:(NSStatusItem *)statusItem
     CGFloat itemWidth = [statusItem length];
     CGFloat itemHeight = [[NSStatusBar systemStatusBar] thickness];
     NSRect itemRect = NSMakeRect(0.0, 0.0, itemWidth, itemHeight);
-    if ((self = [super initWithFrame:itemRect]))
+    self = [super initWithFrame:itemRect];
+
+    if (self != nil)
     {
         _statusItem = [statusItem retain];
         _statusItem.view = self;
@@ -29,6 +31,7 @@ - (void)dealloc
     [_statusItem release];
     [_image release];
     [_alternateImage release];
+
     [super dealloc];
 }
 
@@ -37,6 +40,7 @@ - (void)dealloc
 - (void)drawRect:(NSRect)dirtyRect
 {
 	[self.statusItem drawStatusBarBackgroundInRect:dirtyRect withHighlight:self.isHighlighted];
+
     NSImage *icon = self.isHighlighted ? self.alternateImage : self.image;
     NSSize iconSize = [icon size];
     NSRect bounds = self.bounds;
@@ -64,6 +68,8 @@ - (void)setHighlighted:(BOOL)newFlag
     [self setNeedsDisplay:YES];
 }
 
+#pragma mark -
+
 - (void)setImage:(NSImage *)newImage
 {
     [newImage retain];
@@ -81,6 +87,8 @@ - (void)setAlternateImage:(NSImage *)newImage
         [self setNeedsDisplay:YES];
 }
 
+#pragma mark -
+
 - (NSRect)globalRect
 {
     NSRect frame = [self frame];