Hide current artist from dock context menu when not playing or when there is no artist set

Application/AppController.h

@@ -40,6 +40,9 @@
 	IBOutlet NSMenuItem *showLengthColumn;
 	IBOutlet NSMenuItem *showTrackColumn;
 	IBOutlet NSMenuItem *showYearColumn;
+    
+    IBOutlet NSMenu *dockMenu;
+    IBOutlet NSMenuItem *currentArtistItem;
 	
     IBOutlet NSWindowController *spotlightWindowController;
     

Application/AppController.m

@@ -203,6 +203,11 @@ void* kAppControllerContext = &kAppControllerContext;
     FileTreeOutlineView* outlineView = [fileTreeViewController outlineView];
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(nodeExpanded:) name:NSOutlineViewItemDidExpandNotification object:outlineView];
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(nodeCollapsed:) name:NSOutlineViewItemDidCollapseNotification object:outlineView];
+
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateDockMenu:) name:CogPlaybackDidBeginNotficiation object:nil];
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateDockMenu:) name:CogPlaybackDidStopNotficiation object:nil];
+    
+    [self updateDockMenu:nil];
     
     NSArray *expandedNodesArray = [[NSUserDefaults standardUserDefaults] valueForKey:@"fileTreeViewExpandedNodes"];
     
@@ -626,4 +631,21 @@ void* kAppControllerContext = &kAppControllerContext;
     [miniWindow setLevel:level];
 }
 
+- (void)updateDockMenu:(NSNotification *)notification
+{
+    PlaylistEntry *pe = [playlistController currentEntry];
+    
+    BOOL hideItem = NO;
+    
+    if ([[notification name] isEqualToString:CogPlaybackDidStopNotficiation] || !pe || ![pe artist] || [[pe artist] isEqualToString:@""])
+        hideItem = YES;
+    
+    if (hideItem && [dockMenu indexOfItem:currentArtistItem] == 0) {
+        [dockMenu removeItem:currentArtistItem];
+    }
+    else if (!hideItem && [dockMenu indexOfItem:currentArtistItem] < 0) {
+        [dockMenu insertItem:currentArtistItem atIndex:0];
+    }
+}
+
 @end

Base.lproj/MainMenu.xib

@@ -32,7 +32,7 @@
                                 <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                                 <clipView key="contentView" drawsBackground="NO" copiesOnScroll="NO" id="KWC-Ti-8KY">
                                     <rect key="frame" x="0.0" y="0.0" width="1000" height="378"/>
-                                    <autoresizingMask key="autoresizingMask"/>
+                                    <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                                     <subviews>
                                         <tableView focusRingType="none" verticalHuggingPriority="750" allowsExpansionToolTips="YES" alternatingRowBackgroundColors="YES" autosaveName="Playlist" rowHeight="18" headerView="1517" id="207" customClass="PlaylistView">
                                             <rect key="frame" x="0.0" y="0.0" width="1000" height="361"/>
@@ -657,7 +657,7 @@
                     <toolbarItem implicitItemIdentifier="C0FF70A3-EE67-43F6-9956-95B89425CF0E" label="Current Time" paletteLabel="Current Time" visibilityPriority="5" sizingBehavior="auto" id="2274">
                         <nil key="toolTip"/>
                         <textField key="view" verticalHuggingPriority="750" id="2291" customClass="TimeField">
-                            <rect key="frame" x="14" y="14" width="49" height="19"/>
+                            <rect key="frame" x="15" y="14" width="47" height="19"/>
                             <autoresizingMask key="autoresizingMask"/>
                             <textFieldCell key="cell" controlSize="small" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" borderStyle="bezel" alignment="center" title="0:00" usesSingleLineMode="YES" bezelStyle="round" id="2292">
                                 <font key="font" metaFont="message" size="11"/>
@@ -1504,7 +1504,9 @@ Gw
         </customObject>
         <customObject id="226" userLabel="AppController" customClass="AppController">
             <connections>
+                <outlet property="currentArtistItem" destination="1454" id="lsF-eW-c5e"/>
                 <outlet property="currentEntryController" destination="1897" id="2459"/>
+                <outlet property="dockMenu" destination="513" id="hOo-MJ-WCK"/>
                 <outlet property="fileButton" destination="1631" id="1661"/>
                 <outlet property="fileTreeViewController" destination="2172" id="2460"/>
                 <outlet property="infoButton" destination="1627" id="1663"/>