Created mm list empty loader delegate component

modified the logic in the dropdown filter input types

Author: gabriel-bolbotina

app/qml/CMakeLists.txt

@@ -31,6 +31,7 @@ set(MM_QML
     components/MMListDelegate.qml
     components/MMListDrawer.qml
     components/MMListFooterSpacer.qml
+    components/MMListEmptyLoaderDelegate.qml
     components/MMListMultiselectDrawer.qml
     components/MMListView.qml
     components/MMListSpacer.qml

app/qml/components/MMListEmptyLoaderDelegate.qml

@@ -0,0 +1,40 @@
+/***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+import QtQuick
+
+Item {
+  id: root
+
+  property bool isLoading: false
+
+  height: root.isLoading
+    ? busyIndicator.height + 2 * __style.margin12
+    : noItemsText.implicitHeight + 2 * __style.margin20
+
+  MMText {
+    id: noItemsText
+
+    anchors.centerIn: parent
+
+    visible: !root.isLoading
+
+    text: qsTr( "No items" )
+    font: __style.p5
+    color: __style.mediumGreyColor
+  }
+
+  MMBusyIndicator {
+    id: busyIndicator
+
+    anchors.centerIn: parent
+
+    running: root.isLoading
+  }
+}

app/qml/components/MMListMultiselectDrawer.qml

@@ -18,8 +18,6 @@ MMDrawer {
   property alias list: listViewComponent
   property alias emptyStateDelegate: emptyStateDelegateLoader.sourceComponent
 
-  property bool isLoading: false
-
   property string textRole: "text"
   property string secondaryTextRole: "secondaryText"
   property string valueRole: "value"
@@ -73,34 +71,15 @@ MMDrawer {
 
       Item {
         width: parent.width
-        height: {
-          if ( root.isLoading ) return busyIndicator.height + 2 * __style.margin12
-          if ( listViewComponent.count === 0 ) return emptyStateDelegateLoader.height
-          return listViewComponent.height
-        }
+        height: listViewComponent.count === 0 ? emptyStateDelegateLoader.height : listViewComponent.height
 
-        Item {
-          id: emptyStateContainer
+        Loader {
+          id: emptyStateDelegateLoader
 
           width: parent.width
-          height: emptyStateDelegateLoader.height
-
-          visible: listViewComponent.count === 0 && !root.isLoading
-
-          Loader {
-            id: emptyStateDelegateLoader
-
-            width: parent.width
-            sourceComponent: defaultEmptyStateComponent
-          }
-        }
-
-        MMBusyIndicator {
-          id: busyIndicator
-
-          anchors.centerIn: parent
 
-          running: root.isLoading
+          visible: listViewComponent.count === 0
+          sourceComponent: defaultEmptyStateComponent
         }
 
         MMListView {

app/qml/filters/components/MMFilterDropdownUniqueValuesInput.qml

@@ -73,7 +73,11 @@ Column {
       withSearch: uniqueValuesModel.count > 5
       multiSelect: root.isMultiSelect
 
-      isLoading: uniqueValuesModel.isLoading
+      emptyStateDelegate: Component {
+        MMComponents.MMListEmptyLoaderDelegate {
+          isLoading: uniqueValuesModel.isLoading
+        }
+      }
 
       list.model: MM.SearchProxyModel {
         id: searchProxyModel

app/qml/filters/components/MMFilterDropdownValueMapInput.qml

@@ -72,7 +72,11 @@ Column {
       withSearch: valueMapModel.count > 5
       multiSelect: root.isMultiSelect
 
-      isLoading: valueMapModel.isLoading
+      emptyStateDelegate: Component {
+        MMComponents.MMListEmptyLoaderDelegate {
+          isLoading: valueMapModel.isLoading
+        }
+      }
 
       list.model: MM.SearchProxyModel {
         id: searchProxyModel

app/qml/filters/components/MMFilterDropdownValueRelationInput.qml

@@ -72,7 +72,11 @@ Column {
       withSearch: vrDropdownModel.count > 5
       multiSelect: root.isMultiSelect
 
-      isLoading: vrDropdownModel.isLoading
+      emptyStateDelegate: Component {
+        MMComponents.MMListEmptyLoaderDelegate {
+          isLoading: vrDropdownModel.isLoading
+        }
+      }
 
       list.model: MM.ValueRelationFeaturesModel {
         id: vrDropdownModel