Stop the Pathview movement at the last element - qt

Question

How can I stop the movement of the Pathview element in QML when it reaches the last element in the model(like the list view and grid view default behaviour).ie,I don't want a cyclic movement.
in the below code if we swipe right after the first("first") item last("last") will be shown (then "Jane Doe") .what can be done to stop the further swipe in right when first is reached and further swipe in left when the last item is reached.it should stop when first or last is reached
import QtQuick 2.5
import QtQuick.Window 2.2
Window {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
ListModel {
id:contactModel
ListElement {
name: "first"
icon: "pic.png"
}
ListElement {
name: "Jane Doe"
icon: "pic.png"
}
ListElement {
name: "John Smith"
icon: "pic.png"
}
ListElement {
name: "Bill Jones"
icon: "pic.png"
}
ListElement {
name: "Jane Doe"
icon: "pic.png"
}
ListElement {
name: "John Smith"
icon: "pic.png"
}
ListElement {
name: "Bill Jones"
icon: "pic.png"
}
ListElement {
name: "Jane Doe"
icon: "pic.png"
}
ListElement {
name: "last"
icon: "pic.png"
}
}
Component {
id: delegate
Column {
id: wrapper
Image {
anchors.horizontalCenter: nameText.horizontalCenter
width: 64; height: 64
source: icon
}
Text {
id: nameText
text: name
font.pointSize: 5
color: wrapper.PathView.isCurrentItem ? "red" : "black"
}
}
}
PathView {
anchors.fill: parent
model: contactModel
delegate: delegate
snapMode:PathView.SnapOneItem
path: Path {
startX: 0; startY: 100
PathLine { x: 640; y: 400; }
}
}
}

Answer 1

Here it's how implementation might look (I was not able to find available properties to do that)
PathView {
property int previousCurrentIndex: 0
currentIndex: 0
...
onCurrentIndexChanged: {
var lastIndex = contactModel.count - 1
if (currentIndex == 0 && previousCurrentIndex == lastIndex) {
pathViewId.positionViewAtIndex(lastIndex, PathView.Beginning)
} else if (currentIndex == lastIndex && previousCurrentIndex == 0) {
pathViewId.positionViewAtIndex(0, PathView.Beginning)
}
previousCurrentIndex = currentIndex
}
}
Custom property previousCurrentIndex is introduced and calculation of actual currentIndex is done on emitting of onCurrentIndexChanged signal

Answer 2

You can add the following code in your PathView. It'll stop the view moving from the end to the start and the other way around.
property real previousOffsetVal: 0.
onOffsetChanged: {
/* 10 is a threshhold, should be smaller than the total elements count*/
if (Math.abs( previousOffsetVal - offset) > 10 ) {
offset = previousOffsetVal
}
previousOffsetVal = offset
}