Added completed signal to machine action, so model can notify display that it is completed

CURA-1385

cura/MachineAction.py

@@ -22,8 +22,10 @@ class MachineAction(QObject, PluginObject):
         self._component = None
         self._context = None
         self._view = None
+        self._finished = False
 
     labelChanged = pyqtSignal()
+    onFinished = pyqtSignal()
 
     def getKey(self):
         return self._key
@@ -46,6 +48,7 @@ class MachineAction(QObject, PluginObject):
     #   /sa _reset
     @pyqtSlot()
     def reset(self):
+        self._finished = False
         self._reset()
 
     ##  Protected implementation of reset.
@@ -53,9 +56,18 @@ class MachineAction(QObject, PluginObject):
     def _reset(self):
         pass
 
+    @pyqtSlot()
+    def setFinished(self):
+        self._finished = True
+        self.onFinished.emit()
+
     def _execute(self):
         raise NotImplementedError("Execute() must be implemented")
 
+    @pyqtProperty(bool, notify = onFinished)
+    def finished(self):
+        return self._finished
+
     def _createViewFromQML(self):
         path = QUrl.fromLocalFile(
             os.path.join(PluginRegistry.getInstance().getPluginPath(self.getPluginId()), self._qml_url))

plugins/UltimakerMachineActions/BedLevelMachineAction.qml

@@ -11,7 +11,7 @@ import Cura 1.0 as Cura
 
 
 // The action items always need to be wrapped in a component.
-Component
+Cura.MachineAction
 {
     Item
     {
@@ -77,6 +77,7 @@ Component
                 text: catalog.i18nc("@action:button","Skip bed leveling");
                 onClicked:
                 {
+                    manager.setFinished()
                 }
             }
         }

resources/qml/MachineAction.qml

@@ -0,0 +1,10 @@
+import QtQuick 2.2
+
+Item
+{
+    id: contentItem
+    // Connect the finished property change to completed signal.
+    property var finished: manager.finished
+    onFinishedChanged: if(manager.finished) {completed()}
+    signal completed()
+}

resources/qml/Preferences/MachinesPage.qml

@@ -53,7 +53,7 @@ UM.ManagementPage
                     text: machineActionRepeater.model[index].label;
                     onClicked:
                     {
-                        actionDialog.sourceComponent = machineActionRepeater.model[index].displayItem
+                        actionDialog.content = machineActionRepeater.model[index].displayItem
                         actionDialog.show()
                     }
                 }
@@ -63,13 +63,11 @@ UM.ManagementPage
         UM.Dialog
         {
             id: actionDialog
-
-            // We need to use a property because a window has it's own context.
-            property var sourceComponent
-
-            Loader
+            property var content
+            onContentChanged:
             {
-                sourceComponent: actionDialog.sourceComponent
+                contents = content;
+                content.onCompleted.connect(hide)
             }
         }