Show machine actions page optionally

cura/Machines/Models/FirstStartMachineActionsModel.py

@@ -1,9 +1,9 @@
 # Copyright (c) 2019 Ultimaker B.V.
 # Cura is released under the terms of the LGPLv3 or higher.
 
-from typing import Optional
+from typing import Optional, Dict, Any
 
-from PyQt5.QtCore import QObject, Qt
+from PyQt5.QtCore import QObject, Qt, pyqtProperty, pyqtSignal, pyqtSlot
 
 from UM.Qt.ListModel import ListModel
 
@@ -27,6 +27,8 @@ class FirstStartMachineActionsModel(ListModel):
         self.addRoleName(self.ContentRole, "content")
         self.addRoleName(self.ActionRole, "action")
 
+        self._current_action_index = 0
+
         from cura.CuraApplication import CuraApplication
         self._application = CuraApplication.getInstance()
 
@@ -36,6 +38,47 @@ class FirstStartMachineActionsModel(ListModel):
         self._application.getMachineManager().globalContainerChanged.connect(self._update)
         self._update()
 
+    currentActionIndexChanged = pyqtSignal()
+    allFinished = pyqtSignal()  # Emitted when all actions have been finished.
+
+    @pyqtProperty(int, notify = currentActionIndexChanged)
+    def currentActionIndex(self) -> int:
+        return self._current_action_index
+
+    @pyqtProperty("QVariantMap", notify = currentActionIndexChanged)
+    def currentItem(self) -> Optional[Dict[str, Any]]:
+        if self._current_action_index >= self.count:
+            return dict()
+        else:
+            return self.getItem(self._current_action_index)
+
+    @pyqtProperty(bool, notify = currentActionIndexChanged)
+    def hasMoreActions(self) -> bool:
+        return self._current_action_index < self.count - 1
+
+    @pyqtSlot()
+    def goToNextAction(self) -> None:
+        # finish the current item
+        if "action" in self.currentItem:
+            self.currentItem["action"].setFinished()
+
+        if not self.hasMoreActions:
+            self.allFinished.emit()
+            self.reset()
+            return
+
+        self._current_action_index += 1
+        self.currentActionIndexChanged.emit()
+
+    # Resets the current action index to 0 so the wizard panel can show actions from the beginning.
+    @pyqtSlot()
+    def reset(self) -> None:
+        self._current_action_index = 0
+        self.currentActionIndexChanged.emit()
+
+        if self.count == 0:
+            self.allFinished.emit()
+
     def _update(self) -> None:
         global_stack = self._application.getMachineManager().activeMachine
         if global_stack is None:
@@ -53,6 +96,7 @@ class FirstStartMachineActionsModel(ListModel):
                               })
 
         self.setItems(item_list)
+        self.reset()
 
 
 __all__ = ["FirstStartMachineActionsModel"]