open, save files

ide/src/main/kotlin/befide/ide/ActionView.kt

@@ -4,6 +4,7 @@ import befide.befunge.core.Interpreter
 import javafx.animation.Animation
 import javafx.animation.Timeline
 import javafx.beans.property.SimpleBooleanProperty
+import javafx.beans.property.SimpleObjectProperty
 import javafx.stage.FileChooser
 import javafx.util.Duration
 import tornadofx.*
@@ -30,6 +31,9 @@ class ActionView(val interp: Interpreter, val codeView: CodeView, val ioView: IO
     val canResetProperty = SimpleBooleanProperty(false)
     var canReset by canResetProperty
 
+    val saveFileProperty = SimpleObjectProperty<File>()
+    var saveFile by saveFileProperty
+
     fun start(rate: Double) {
         stop()
 
@@ -68,13 +72,46 @@ class ActionView(val interp: Interpreter, val codeView: CodeView, val ioView: IO
         codeView.clear()
     }
 
+    fun save() {
+        if (saveFile == null) {
+            saveAs()
+        } else {
+            saveFile.writeText(codeView.src)
+        }
+    }
+
+    fun saveAs() {
+        val fc = FileChooser()
+        fc.title = "Save Befunge File"
+
+        val file: File? = fc.showSaveDialog(primaryStage)
+        if (file != null) {
+            saveFile = file
+
+            save()
+        }
+    }
+
+    fun open() {
+        val fc = FileChooser()
+        fc.title = "Open Befunge File"
+
+        val file: File? = fc.showOpenDialog(primaryStage)
+        if (file != null) {
+            saveFile = file
+
+            reset()
+            codeView.src = saveFile.readText()
+        }
+    }
+
     override val root = hbox {
         button("step") {
             setOnAction { step() }
             disableWhen(isRunningProperty)
         }
 
-        separator { }
+        separator {}
 
         button("run") {
             setOnAction { start(10000.0) }
@@ -95,29 +132,35 @@ class ActionView(val interp: Interpreter, val codeView: CodeView, val ioView: IO
             enableWhen(isRunningProperty)
         }
 
-        spacer()
-
-        button("open") {
-            setOnAction {
-                val fc = FileChooser()
-                fc.title = "Open Befunge File"
-
-                val file: File? = fc.showOpenDialog(primaryStage)
-                if (file != null){
-                    reset()
-                    codeView.src = file.readText()
-                }
-            }
-            disableWhen(isRunningProperty)
-        }
+        spacer {}
 
         button("reset") {
             setOnAction { reset() }
             enableWhen(canResetProperty.and(isRunningProperty.not()))
         }
 
-        button("clear") {
-            setOnAction { clearCode() }
+        separator {}
+
+        button("open") {
+            setOnAction { open() }
+            disableWhen(isRunningProperty)
+        }
+
+        button("save as") {
+            setOnAction { saveAs() }
+        }
+
+        button("save") {
+            setOnAction { save() }
+
+            enableWhen(saveFileProperty.isNotNull.and(isRunningProperty.not()))
+        }
+
+        button("new") {
+            setOnAction {
+                clearCode()
+                saveFile = null
+            }
             disableWhen(isRunningProperty)
         }
     }