window restoration support.

only applies if you option quit (quit and save windows) or quit unexpectedly.

Ample.xcodeproj/project.pbxproj

@@ -465,18 +465,14 @@
 		B6BA257D24E99BE9005FB8FF /* Ample */ = {
 			isa = PBXGroup;
 			children = (
-				B64AF1F4250ED5E400A09B9B /* TableCellView.h */,
-				B64AF1F5250ED5E400A09B9B /* TableCellView.m */,
-				B6E9A17E25088B1B005E7525 /* NewSlotViewController.h */,
-				B6E9A17F25088B1B005E7525 /* NewSlotViewController.m */,
-				B63C1B9125008A2700511A71 /* DownloadWindowController.h */,
-				B63C1B9225008A2700511A71 /* DownloadWindowController.m */,
 				B6BA257E24E99BE9005FB8FF /* AppDelegate.h */,
 				B6BA257F24E99BE9005FB8FF /* AppDelegate.m */,
 				B63C1B8924FF4B7100511A71 /* Ample.h */,
 				B63C1B8A24FF4BF700511A71 /* Ample.m */,
-				B6D6DE3F24FADFAC00661A5F /* LaunchWindowController.h */,
-				B6D6DE4024FADFAC00661A5F /* LaunchWindowController.m */,
+				B64AF1F4250ED5E400A09B9B /* TableCellView.h */,
+				B64AF1F5250ED5E400A09B9B /* TableCellView.m */,
+				B6E9A17E25088B1B005E7525 /* NewSlotViewController.h */,
+				B6E9A17F25088B1B005E7525 /* NewSlotViewController.m */,
 				B65593B024ECB61800722E0C /* SlotViewController.m */,
 				B65593AF24ECB61800722E0C /* SlotViewController.h */,
 				B64979C024EF6703008ABD20 /* MediaViewController.h */,
@@ -487,14 +483,9 @@
 				B60A6E1224EE0AE2004B7EEF /* FlippedView.h */,
 				B608E17D2502FE0C00D53465 /* TransparentScroller.h */,
 				B608E17E2502FE0C00D53465 /* TransparentScroller.m */,
-				B6004DED24FB05D600D38596 /* LogWindowController.h */,
-				B6004DEE24FB05D600D38596 /* LogWindowController.m */,
-				B66236A724FD9A34006CABD7 /* PreferencesWindowController.h */,
-				B66236A824FD9A34006CABD7 /* PreferencesWindowController.m */,
+				B6BA563A251685DA00B0C47D /* Window Controllers */,
 				B6B9EA652506A5550080E70D /* EjectButton.h */,
 				B6B9EA642506A5550080E70D /* EjectButton.m */,
-				B64AF1F0250ECB2E00A09B9B /* DiskImagesWindowController.h */,
-				B64AF1F1250ECB2E00A09B9B /* DiskImagesWindowController.m */,
 				B64AF1F8250EF6A500A09B9B /* Transformers.h */,
 				B64AF1F9250EF6A500A09B9B /* Transformers.m */,
 				B6BA258124E99BEB005FB8FF /* Assets.xcassets */,
@@ -509,6 +500,23 @@
 			path = Ample;
 			sourceTree = "<group>";
 		};
+		B6BA563A251685DA00B0C47D /* Window Controllers */ = {
+			isa = PBXGroup;
+			children = (
+				B64AF1F0250ECB2E00A09B9B /* DiskImagesWindowController.h */,
+				B64AF1F1250ECB2E00A09B9B /* DiskImagesWindowController.m */,
+				B63C1B9125008A2700511A71 /* DownloadWindowController.h */,
+				B63C1B9225008A2700511A71 /* DownloadWindowController.m */,
+				B6D6DE3F24FADFAC00661A5F /* LaunchWindowController.h */,
+				B6D6DE4024FADFAC00661A5F /* LaunchWindowController.m */,
+				B6004DED24FB05D600D38596 /* LogWindowController.h */,
+				B6004DEE24FB05D600D38596 /* LogWindowController.m */,
+				B66236A724FD9A34006CABD7 /* PreferencesWindowController.h */,
+				B66236A824FD9A34006CABD7 /* PreferencesWindowController.m */,
+			);
+			name = "Window Controllers";
+			sourceTree = "<group>";
+		};
 		B6D6DE4224FAEE8900661A5F /* Nibs */ = {
 			isa = PBXGroup;
 			children = (

Ample/AppDelegate.m

@@ -46,12 +46,13 @@
     
 
 
+    _diskImages = [DiskImagesWindowController sharedInstance]; //[DiskImagesWindowController new];
+
     if ([self installMameComponents]) {
+
         [self displayLaunchWindow];
     }
 
-    _diskImages = [DiskImagesWindowController new];
-
 }
 
 -(void)displayLaunchWindow {
@@ -119,6 +120,7 @@
             }
             [win close];
             [self displayLaunchWindow];
+            [self displayROMS: nil];
         });
         
     }];
@@ -152,15 +154,16 @@
 
 - (IBAction)displayROMS:(id)sender {
     if (!_downloader) {
-        _downloader = [DownloadWindowController new];
+        _downloader = [DownloadWindowController sharedInstance];
     }
     [_downloader showWindow: sender];
 }
 
 - (IBAction)displayRecentDiskImages:(id)sender {
     if (!_diskImages) {
-        _diskImages = [DiskImagesWindowController new];
+        _diskImages = [DiskImagesWindowController sharedInstance];
     }
     [_diskImages showWindow: sender];
 }
+
 @end

Ample/Defaults.plist

@@ -10,5 +10,7 @@
 	<true/>
 	<key>MamePath</key>
 	<string>/usr/local/bin/mame</string>
+	<key>NSQuitAlwaysKeepsWindows</key>
+	<true/>
 </dict>
 </plist>

Ample/DiskImagesWindowController.h

@@ -10,7 +10,9 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-@interface DiskImagesWindowController : NSWindowController
+@interface DiskImagesWindowController : NSWindowController <NSWindowRestoration>
+
++(instancetype)sharedInstance;
 
 @end
 

Ample/DiskImagesWindowController.m

@@ -24,6 +24,21 @@
     
 }
 
++(instancetype)sharedInstance {
+    static DiskImagesWindowController *me;
+    if (!me) {
+        me = [self new];
+    }
+    return me;
+}
+
++ (void)restoreWindowWithIdentifier:(NSUserInterfaceItemIdentifier)identifier state:(NSCoder *)state completionHandler:(void (^)(NSWindow *, NSError *))completionHandler {
+    NSLog(@"restore disk images window");
+    NSWindowController *controller = [self sharedInstance];
+    NSWindow *w = [controller window];
+    [w restoreStateWithCoder: state];
+    completionHandler(w, nil);
+}
 
 -(instancetype)init {
     
@@ -48,6 +63,10 @@
         [self setContent: [NSMutableArray new]];
     
     [super windowDidLoad];
+    NSWindow *window = [self window];
+    [window setRestorable: YES];
+    [window setRestorationClass: [self class]];
+
     
     [_tableView registerForDraggedTypes: @[NSPasteboardTypeFileURL]];
     [_tableView setDraggingSourceOperationMask: NSDragOperationCopy forLocal: NO]; // enable drag/drop to othr apps.

Ample/DownloadWindowController.h

@@ -10,7 +10,7 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-@interface DownloadWindowController : NSWindowController
+@interface DownloadWindowController : NSWindowController <NSWindowRestoration>
 
 @property NSString *currentROM;
 @property NSInteger currentCount;
@@ -18,6 +18,9 @@ NS_ASSUME_NONNULL_BEGIN
 @property NSInteger errorCount;
 @property BOOL active;
 
++(instancetype)sharedInstance;
+
+
 @end
 
 @interface DownloadWindowController (URL) <NSURLSessionTaskDelegate, NSURLSessionDownloadDelegate>

Ample/DownloadWindowController.m

@@ -52,12 +52,38 @@ enum {
     NSMutableDictionary *_taskIndex;
 }
 
++(instancetype)sharedInstance {
+    static DownloadWindowController *me = nil;
+    if (!me) {
+        me = [self new];
+    }
+    return me;
+}
+
++ (void)restoreWindowWithIdentifier:(nonnull NSUserInterfaceItemIdentifier)identifier state:(nonnull NSCoder *)state completionHandler:(nonnull void (^)(NSWindow * _Nullable, NSError * _Nullable))completionHandler {
+    NSLog(@"restore rom manager window");
+
+    NSWindowController *controller = [DownloadWindowController sharedInstance];
+    NSWindow *w = [controller window];
+    [w restoreStateWithCoder: state];
+    completionHandler(w, nil);
+}
+
+#if 0
+- (void)encodeWithCoder:(nonnull NSCoder *)coder {
+    
+}
+#endif
+
 -(NSString *)windowNibName {
     return @"DownloadWindow";
 }
 
 - (void)windowDidLoad {
     [super windowDidLoad];
+    NSWindow *window = [self window];
+    [window setRestorable: YES];
+    [window setRestorationClass: [self class]];
     
     // Implement this method to handle any initialization after your window controller's window has been loaded from its nib file.
 
@@ -303,6 +329,7 @@ enum {
     */
     NSLog(@"%@", src);
 }
+
 @end
 
 @implementation DownloadWindowController (Table)