Add screenshot with album play button

Persephone/Controllers/AlbumViewController.swift

@@ -19,6 +19,8 @@ class AlbumViewController: NSViewController,
   override func viewDidLoad() {
     super.viewDidLoad()
 
+    albumScrollView.postsBoundsChangedNotifications = true
+
     NotificationCenter.default.addObserver(
       self,
       selector: #selector(updateAlbums(_:)),
@@ -73,5 +75,6 @@ class AlbumViewController: NSViewController,
     return NSSize(width: itemWidth, height: itemHeight)
   }
 
+  @IBOutlet var albumScrollView: NSScrollView!
   @IBOutlet var albumCollectionView: NSCollectionView!
 }

Persephone/Controllers/QueueViewController.swift

@@ -114,8 +114,9 @@ class QueueViewController: NSViewController, NSOutlineViewDataSource, NSOutlineV
     if oldSongRowPos >= 0 {
       queue[oldSongRowPos].isPlaying = false
     }
-
-    queue[newSongRowPos].isPlaying = true
+    if newSongRowPos >= 0 {
+      queue[newSongRowPos].isPlaying = true
+    }
   }
 
   func outlineView(_ outlineView: NSOutlineView, numberOfChildrenOfItem item: Any?) -> Int {

Persephone/Resources/Base.lproj/Main.storyboard

@@ -842,7 +842,7 @@
                                                         </tableCellView>
                                                     </prototypeCellViews>
                                                 </tableColumn>
-                                                <tableColumn identifier="songArtistColumn" width="144" minWidth="128" maxWidth="1000" id="SPM-QP-DX8">
+                                                <tableColumn identifier="songArtistColumn" width="144" minWidth="64" maxWidth="1000" id="SPM-QP-DX8">
                                                     <tableHeaderCell key="headerCell" lineBreakMode="truncatingTail" borderStyle="border" alignment="left" title="Artist">
                                                         <font key="font" metaFont="smallSystem"/>
                                                         <color key="textColor" name="headerTextColor" catalog="System" colorSpace="catalog"/>
@@ -859,9 +859,8 @@
                                                             <rect key="frame" x="204" y="1" width="144" height="17"/>
                                                             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                                                             <subviews>
-                                                                <textField verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="tBe-Q9-3Rw">
-                                                                    <rect key="frame" x="0.0" y="0.0" width="222" height="17"/>
-                                                                    <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
+                                                                <textField verticalHuggingPriority="750" horizontalCompressionResistancePriority="250" translatesAutoresizingMaskIntoConstraints="NO" id="tBe-Q9-3Rw">
+                                                                    <rect key="frame" x="0.0" y="0.0" width="149" height="17"/>
                                                                     <textFieldCell key="cell" lineBreakMode="truncatingTail" sendsActionOnEndEditing="YES" title="Table View Cell" id="Ceb-ec-ydU">
                                                                         <font key="font" metaFont="system"/>
                                                                         <color key="textColor" name="controlTextColor" catalog="System" colorSpace="catalog"/>
@@ -869,6 +868,11 @@
                                                                     </textFieldCell>
                                                                 </textField>
                                                             </subviews>
+                                                            <constraints>
+                                                                <constraint firstItem="tBe-Q9-3Rw" firstAttribute="centerY" secondItem="JSk-Vc-Y7e" secondAttribute="centerY" id="Tkg-cb-Bg6"/>
+                                                                <constraint firstAttribute="trailing" secondItem="tBe-Q9-3Rw" secondAttribute="trailing" constant="-3" id="VhZ-ua-QQX"/>
+                                                                <constraint firstItem="tBe-Q9-3Rw" firstAttribute="leading" secondItem="JSk-Vc-Y7e" secondAttribute="leading" constant="2" id="cTy-tR-Grg"/>
+                                                            </constraints>
                                                             <connections>
                                                                 <outlet property="textField" destination="tBe-Q9-3Rw" id="2e6-zi-tKj"/>
                                                             </connections>
@@ -962,6 +966,7 @@
                     </view>
                     <connections>
                         <outlet property="albumCollectionView" destination="lfq-AB-epE" id="p69-Fs-hCN"/>
+                        <outlet property="albumScrollView" destination="i5f-35-7x8" id="jmd-Sa-Bxt"/>
                     </connections>
                 </viewController>
                 <customObject id="uex-Ws-5X4" userLabel="First Responder" customClass="NSResponder" sceneMemberID="firstResponder"/>

Persephone/Views/AlbumItemView.swift

@@ -31,15 +31,38 @@ class AlbumItemView: NSView {
     addTrackingArea(trackingArea)
   }
 
+  required init?(coder decoder: NSCoder) {
+    super.init(coder: decoder)
+
+    NotificationCenter.default.addObserver(
+      self,
+      selector: #selector(viewWillScroll(_:)),
+      name: NSScrollView.willStartLiveScrollNotification,
+      object: nil
+    )
+  }
+
+  @objc func viewWillScroll(_ notification: Notification) {
+    hidePlayButton()
+  }
+
   override func resize(withOldSuperviewSize oldSize: NSSize) {
-    playButton.isHidden = true
+    hidePlayButton()
   }
 
   override func mouseEntered(with event: NSEvent) {
-    playButton.isHidden = false
+    showPlayButton()
   }
 
   override func mouseExited(with event: NSEvent) {
+    hidePlayButton()
+  }
+
+  func showPlayButton() {
+    playButton.isHidden = false
+  }
+
+  func hidePlayButton() {
     playButton.isHidden = true
   }