bounds for presentation arrows and service items

src/qml/presenter/LeftDock.qml

@@ -238,7 +238,7 @@ ColumnLayout {
                         y: mouseHandler.mouseY + 10
                         Kirigami.Action {
                             text: "delete"
-                            onTriggered: serviceItemModel.removeItem(index)
+                            onTriggered: removeItem(index);
                         }
                     }
 
@@ -268,6 +268,15 @@ ColumnLayout {
         }
     } 
 
+    Component.onCompleted: {
+        totalServiceItems = serviceItemList.count;
+        print("THE TOTAL SERVICE ITEMS: " + totalServiceItems);
+    }
+
+    function removeItem(index) {
+        serviceItemModel.removeItem(index);
+        totalServiceItems--;
+    }
 
     function addItem(index, name, type,
                      background, backgroundType, text, itemID) {
@@ -276,6 +285,7 @@ ColumnLayout {
         serviceItemModel.insertItem(index, name,
                                     type, background,
                                     backgroundType, newtext);
+        totalServiceItems++;
     }
 
     function appendItem(name, type, background, backgroundType, text, itemID) {
@@ -292,6 +302,7 @@ ColumnLayout {
 
         serviceItemModel.addItem(name, type, background,
                                  backgroundType, lyrics);
+        totalServiceItems++;
     }
 
     function changeItem() {

src/qml/presenter/MainWindow.qml

@@ -17,6 +17,7 @@ Controls.Page {
     property url videoBackground: presentation.vidBackground
     property string currentText: presentation.text
     property int blurRadius: 0
+    property int totalServiceItems
 
     /* property var video */
 

src/qml/presenter/Presentation.qml

@@ -158,6 +158,8 @@ Item {
     }
 
     function nextSlideAction() {
+        if (currentServiceItem === totalServiceItems)
+            return;
         const nextServiceItemIndex = currentServiceItem + 1;
         const nextItem = serviceItemModel.getItem(nextServiceItemIndex);
         print("currentServiceItem " + currentServiceItem);
@@ -178,6 +180,9 @@ Item {
     }
 
     function previousSlideAction() {
+        if (currentServiceItem === 0) {
+            return;
+        };
         const prevServiceItemIndex = currentServiceItem - 1;
         const prevItem = serviceItemModel.getItem(prevServiceItemIndex);
         print("currentServiceItem " + currentServiceItem);