Adds Preview Save States

Common/Database/Model/Model.xcdatamodeld/Model.xcdatamodel/contents

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<model userDefinedModelVersionIdentifier="1.0" type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="9525" systemVersion="15D21" minimumToolsVersion="Xcode 7.0">
+<model userDefinedModelVersionIdentifier="1.0" type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="10174" systemVersion="15E65" minimumToolsVersion="Xcode 7.0">
     <entity name="Game" representedClassName="Game" syncable="YES">
         <attribute name="artworkURL" optional="YES" attributeType="Transformable" syncable="YES">
             <userInfo>
@@ -40,6 +40,7 @@
             </userInfo>
         </attribute>
         <attribute name="identifier" attributeType="String" syncable="YES"/>
+        <attribute name="isPreview" attributeType="Boolean" defaultValueString="NO" syncable="YES"/>
         <attribute name="modifiedDate" attributeType="Date" syncable="YES"/>
         <attribute name="name" optional="YES" attributeType="String" syncable="YES"/>
         <attribute name="type" attributeType="Integer 16" defaultValueString="1" syncable="YES"/>
@@ -53,6 +54,6 @@
     <elements>
         <element name="Game" positionX="-200" positionY="-72" width="128" height="148"/>
         <element name="GameCollection" positionX="-198" positionY="-207" width="128" height="90"/>
-        <element name="SaveState" positionX="-198" positionY="113" width="128" height="150"/>
+        <element name="SaveState" positionX="-198" positionY="113" width="128" height="165"/>
     </elements>
 </model>

Common/Database/Model/SaveState.swift

@@ -17,6 +17,7 @@ extension SaveState
     {
         case filename
         case identifier
+        case isPreview
         case name
         case creationDate
         case modifiedDate
@@ -39,6 +40,7 @@ class SaveState: NSManagedObject, SaveStateType
     @NSManaged var name: String?
     @NSManaged var modifiedDate: NSDate
     @NSManaged var type: Type
+    @NSManaged var isPreview: Bool
     
     @NSManaged private(set) var filename: String
     @NSManaged private(set) var identifier: String

Delta/Base.lproj/Main.storyboard

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="9532" systemVersion="15D21" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="wKV-3d-NIY">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15E65" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="wKV-3d-NIY">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9530"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
         <capability name="Segues with Peek and Pop" minToolsVersion="7.1"/>
     </dependencies>
     <scenes>
@@ -75,7 +75,7 @@
                                 <connections>
                                     <segue destination="hx4-Ze-0Jw" kind="presentation" id="Ila-yL-N8w">
                                         <segue key="commit" inheritsFrom="parent" id="0B7-vE-k6Z"/>
-                                        <segue key="preview" inheritsFrom="commit" id="Jd4-q3-dNr"/>
+                                        <segue key="preview" destination="hx4-Ze-0Jw" identifier="peekEmulationViewController" id="Jd4-q3-dNr"/>
                                     </segue>
                                 </connections>
                             </collectionViewCell>
@@ -210,6 +210,6 @@
         <image name="Settings_Button" width="22" height="22"/>
     </resources>
     <inferredMetricsTieBreakers>
-        <segue reference="Jd4-q3-dNr"/>
+        <segue reference="Ila-yL-N8w"/>
     </inferredMetricsTieBreakers>
 </document>

Delta/Emulation/EmulationViewController.swift

@@ -104,6 +104,7 @@ class EmulationViewController: UIViewController
         super.viewDidAppear(animated)
         
         self.deferredPreparationHandler?()
+        self.deferredPreparationHandler = nil
         
         switch self.emulatorCore.state
         {

Delta/Game Selection/GamesViewController.swift

@@ -125,6 +125,21 @@ class GamesViewController: UIViewController
         let game = sourceViewController.dataSource.fetchedResultsController.objectAtIndexPath(indexPath!) as! Game
         
         destinationViewController.game = game
+        
+        if segue.identifier == "peekEmulationViewController"
+        {
+            destinationViewController.deferredPreparationHandler = { [unowned destinationViewController] in
+                
+                let predicate = NSPredicate(format: "%K == %@ AND %K == YES", SaveState.Attributes.game.rawValue, game, SaveState.Attributes.isPreview.rawValue)
+                
+                if let saveState = SaveState.instancesWithPredicate(predicate, inManagedObjectContext: DatabaseManager.sharedManager.managedObjectContext, type: SaveState.self).first
+                {
+                    destinationViewController.emulatorCore.startEmulation()
+                    destinationViewController.emulatorCore.pauseEmulation()
+                    destinationViewController.emulatorCore.loadSaveState(saveState)
+                }
+            }
+        }
     }
     
     @IBAction func unwindFromSettingsViewController(segue: UIStoryboardSegue)

Delta/Pause Menu/Save States/SaveStatesViewController.swift

@@ -253,6 +253,23 @@ private extension SaveStatesViewController
             self.renameSaveState(saveState)
         }))
         
+        if self.traitCollection.forceTouchCapability == .Available
+        {
+            if !saveState.isPreview
+            {
+                alertController.addAction(UIAlertAction(title: NSLocalizedString("Set as Preview Save State", comment: ""), style: .Default, handler: { action in
+                    self.updatePreviewSaveState(saveState)
+                }))
+            }
+            else
+            {
+                alertController.addAction(UIAlertAction(title: NSLocalizedString("Remove as Preview Save State", comment: ""), style: .Default, handler: { action in
+                    self.updatePreviewSaveState(nil)
+                }))
+            }
+        }
+        
+        
         let section = self.correctedSectionForSectionIndex(indexPath.section)
         switch section
         {
@@ -302,7 +319,7 @@ private extension SaveStatesViewController
     
     func deleteSaveState(saveState: SaveState)
     {
-        let confirmationAlertController = UIAlertController(title: NSLocalizedString("Confirm Deletion", comment: ""), message: NSLocalizedString("Are you sure you want to delete this save state? This cannot be undone.", comment: ""), preferredStyle: .Alert)
+        let confirmationAlertController = UIAlertController(title: NSLocalizedString("Delete Save State?", comment: ""), message: NSLocalizedString("Are you sure you want to delete this save state? This cannot be undone.", comment: ""), preferredStyle: .Alert)
         confirmationAlertController.addAction(UIAlertAction(title: NSLocalizedString("Delete", comment: ""), style: .Default, handler: { action in
             
             let backgroundContext = DatabaseManager.sharedManager.backgroundManagedObjectContext()
@@ -363,6 +380,37 @@ private extension SaveStatesViewController
         self.selectedSaveState = nil
     }
     
+    func updatePreviewSaveState(saveState: SaveState?)
+    {
+        let alertController = UIAlertController(title: NSLocalizedString("Change Preview Save State?", comment: ""), message: NSLocalizedString("The Preview Save State is loaded whenever you preview this game from the Main Menu with 3D Touch. Are you sure you want to change it?", comment: ""), preferredStyle: .Alert)
+        alertController.addAction(UIAlertAction(title: NSLocalizedString("Cancel", comment: ""), style: .Cancel, handler: nil))
+        alertController.addAction(UIAlertAction(title: NSLocalizedString("Change", comment: ""), style: .Default, handler: { (action) in
+            
+            let backgroundContext = DatabaseManager.sharedManager.backgroundManagedObjectContext()
+            backgroundContext.performBlock {
+                
+                var game = self.delegate.saveStatesViewControllerActiveEmulatorCore(self).game as! Game
+                game = backgroundContext.objectWithID(game.objectID) as! Game
+                
+                let predicate = NSPredicate(format: "%K == %@ AND %K == YES", SaveState.Attributes.game.rawValue, game, SaveState.Attributes.isPreview.rawValue)
+                
+                let previousPreviewSaveState = SaveState.instancesWithPredicate(predicate, inManagedObjectContext: backgroundContext, type: SaveState.self).first
+                previousPreviewSaveState?.isPreview = false
+                
+                if let saveState = saveState
+                {
+                    let previewSaveState = backgroundContext.objectWithID(saveState.objectID) as! SaveState
+                    previewSaveState.isPreview = true
+                }
+                
+                backgroundContext.saveWithErrorLogging()
+            }
+            
+        }))
+        
+        self.presentViewController(alertController, animated: true, completion: nil)
+    }
+    
     func lockSaveState(saveState: SaveState)
     {
         let backgroundContext = DatabaseManager.sharedManager.backgroundManagedObjectContext()