Make new Marktetplace react to 'get more materials'.

part of CURA-8588

plugins/Marketplace/Marketplace.py

@@ -2,7 +2,7 @@
 # Cura is released under the terms of the LGPLv3 or higher.
 
 import os.path
-from PyQt5.QtCore import pyqtSlot
+from PyQt5.QtCore import pyqtProperty, pyqtSignal, pyqtSlot, QObject
 from PyQt5.QtQml import qmlRegisterType
 from typing import Optional, TYPE_CHECKING
 
@@ -15,19 +15,33 @@ from .RemotePackageList import RemotePackageList  # To register this type with Q
 from .LocalPackageList import LocalPackageList  # To register this type with QML.
 from .RestartManager import RestartManager  # To register this type with QML.
 
-if TYPE_CHECKING:
-    from PyQt5.QtCore import QObject
-
 
 class Marketplace(Extension):
     """
     The main managing object for the Marketplace plug-in.
     """
 
+    class TabManager(QObject):
+        def __init__(self) -> None:
+            super().__init__(parent=CuraApplication.getInstance())
+            self._tab_shown = 0
+
+        def getTabShown(self):
+            return self._tab_shown
+
+        def setTabShown(self, tab_shown):
+            if tab_shown != self._tab_shown:
+                self._tab_shown = tab_shown
+                self.tabShownChanged.emit()
+
+        tabShownChanged = pyqtSignal()
+        tabShown = pyqtProperty(int, fget=getTabShown, fset=setTabShown, notify=tabShownChanged)
+
     def __init__(self) -> None:
         super().__init__()
         self._window: Optional["QObject"] = None  # If the window has been loaded yet, it'll be cached in here.
         self._plugin_registry: Optional[PluginRegistry] = None
+        self._tab_manager = Marketplace.TabManager()
 
         qmlRegisterType(RemotePackageList, "Marketplace", 1, 0, "RemotePackageList")
         qmlRegisterType(LocalPackageList, "Marketplace", 1, 0, "LocalPackageList")
@@ -46,8 +60,17 @@ class Marketplace(Extension):
             if plugin_path is None:
                 plugin_path = os.path.dirname(__file__)
             path = os.path.join(plugin_path, "resources", "qml", "Marketplace.qml")
-            self._window = CuraApplication.getInstance().createQmlComponent(path, {})
+            self._window = CuraApplication.getInstance().createQmlComponent(path, {"tabManager": self._tab_manager})
         if self._window is None:  # Still None? Failed to load the QML then.
             return
+        self._tab_manager.setTabShown(0)
         self._window.show()
         self._window.requestActivate()  # Bring window into focus, if it was already open in the background.
+
+    @pyqtSlot()
+    def setVisibleTabToMaterials(self) -> None:
+        """
+        Set the tab shown to the remote materials one.
+        Not implemented in a more generic way because it needs the ability to be called with 'callExtensionMethod'.
+        """
+        self._tab_manager.setTabShown(1)

plugins/Marketplace/resources/qml/Marketplace.qml

@@ -25,7 +25,6 @@ Window
 
     onVisibleChanged:
     {
-        pageSelectionTabBar.currentIndex = 0; //Go back to the initial tab.
         while(contextStack.depth > 1)
         {
             contextStack.pop(); //Do NOT use the StackView.Immediate transition here, since it causes the window to stay empty. Seemingly a Qt bug: https://bugreports.qt.io/browse/QTBUG-60670?
@@ -131,9 +130,11 @@ Window
                             height: UM.Theme.getSize("button_icon").height
                             spacing: 0
                             background: Rectangle { color: "transparent" }
+                            currentIndex: tabManager.tabShown
 
                             onCurrentIndexChanged:
                             {
+                                tabManager.tabShown = currentIndex
                                 searchBar.text = "";
                                 searchBar.visible = currentItem.hasSearch;
                                 content.source = currentItem.sourcePage;

resources/qml/MainWindow/ApplicationMenu.qml

@@ -212,8 +212,8 @@ Item
         target: Cura.Actions.marketplaceMaterials
         function onTriggered()
         {
-            curaExtensions.callExtensionMethod("Toolbox", "launch")
+            curaExtensions.callExtensionMethod("Marketplace", "show")
-            curaExtensions.callExtensionMethod("Toolbox", "setViewCategoryToMaterials")
+            curaExtensions.callExtensionMethod("Marketplace", "setVisibleTabToMaterials")
         }
     }
 }