Add autosave

src/main/scala/ocelot/desktop/OcelotDesktop.scala

@@ -5,7 +5,7 @@ import java.nio.file.{Files, Path, StandardCopyOption}
 import java.util.Comparator
 import java.util.concurrent.locks.{Lock, ReentrantLock}
 
-import javax.swing.JFileChooser
+import javax.swing.{JFileChooser, JOptionPane}
 import li.flor.nativejfilechooser.NativeJFileChooser
 import ocelot.desktop.ui.UiHandler
 import ocelot.desktop.ui.widget.RootWidget
@@ -130,7 +130,7 @@ object OcelotDesktop extends Logging {
       }
 
       for (path <- oldFiles) {
-        Files.move(oldPath.resolve(path.getFileName), newPath.resolve(path.getFileName), StandardCopyOption.REPLACE_EXISTING)
+        Files.copy(oldPath.resolve(path.getFileName), newPath.resolve(path.getFileName), StandardCopyOption.REPLACE_EXISTING)
       }
 
       workspace.path = newPath
@@ -179,6 +179,29 @@ object OcelotDesktop extends Logging {
     }).start()
   }
 
+  def exit(): Unit = {
+    if (savePath.isDefined) {
+      save()
+      UiHandler.exit()
+      return
+    }
+
+    new Thread(() => {
+      val dialogResult = JOptionPane.showConfirmDialog(null, "Save workspace before exiting?", "Warning", JOptionPane.YES_NO_OPTION)
+      if (dialogResult == JOptionPane.YES_OPTION) {
+        chooseDirectory(dir => {
+          if (dir.isDefined) {
+            savePath = dir.map(_.toPath)
+            save()
+            UiHandler.exit()
+          }
+        })
+      } else {
+        UiHandler.exit()
+      }
+    }).start()
+  }
+
   var workspace: Workspace = _
 
   private def createWorkspace(): Unit = {

src/main/scala/ocelot/desktop/ui/UiHandler.scala

@@ -6,6 +6,7 @@ import java.nio.channels.Channels
 import java.nio.file.{Files, Paths}
 
 import javax.imageio.ImageIO
+import ocelot.desktop.OcelotDesktop
 import ocelot.desktop.geometry.{Size2D, Vector2D}
 import ocelot.desktop.graphics.Graphics
 import ocelot.desktop.ui.event.MouseEvent
@@ -167,13 +168,19 @@ object UiHandler extends Logging {
   }
 
   private var exitRequested = false
+  private var exitHandlerCalled = false
 
   def exit(): Unit = {
     exitRequested = true
   }
 
   def start(): Unit = {
-    while (!Display.isCloseRequested && !exitRequested) {
+    while (!exitRequested) {
+      if (!exitHandlerCalled && Display.isCloseRequested) {
+        exitHandlerCalled = true
+        OcelotDesktop.exit()
+      }
+
       Audio.update()
 
       updateWindowSize()

src/main/scala/ocelot/desktop/ui/widget/MenuBar.scala

@@ -21,7 +21,7 @@ class MenuBar extends Widget {
     menu.addEntry(new ContextMenuEntry("Save", () => OcelotDesktop.save()))
     menu.addEntry(new ContextMenuEntry("Save as…", () => OcelotDesktop.saveAs()))
     menu.addSeparator()
-    menu.addEntry(new ContextMenuEntry("Exit", () => UiHandler.exit()))
+    menu.addEntry(new ContextMenuEntry("Exit", () => OcelotDesktop.exit()))
   }))
 
   addEntry(new Widget {