discover/qml/CarouselNavigationButtonsListViewAdapter.qml

0001 /*
0002  *   SPDX-FileCopyrightText: 2023 ivan tkachenko <me@ratijas.tk>
0003  *
0004  *   SPDX-License-Identifier: LGPL-2.0-or-later
0005  */
0006
0007 import QtQuick
0008
0009 /*
0010  * Helper component to integrate CarouselNavigationButtons with a ListView.
0011  */
0012 CarouselNavigationButtons {
0013     id: root
0014
0015     required property ListView view
0016
0017     // We experimented with ListView::atXBeginning/atXEnd, but ultimately
0018     // binding on currentIndex provides smoother experience overall.
0019
0020     animated: {
0021         if (view) {
0022             // Zero duration is a trick used to reset currentIndex without animations
0023             return view.highlightMoveDuration !== 0;
0024         } else {
0025             return false;
0026         }
0027     }
0028
0029     atBeginning: {
0030         if (view) {
0031             return view.currentIndex === 0;
0032         } else {
0033             return false;
0034         }
0035     }
0036
0037     atEnd: {
0038         if (view) {
0039             return view.currentIndex === view.count - 1;
0040         } else {
0041             return false;
0042         }
0043     }
0044
0045     onDecrementCurrentIndex: {
0046         view.decrementCurrentIndex();
0047     }
0048     onIncrementCurrentIndex: {
0049         view.incrementCurrentIndex();
0050     }
0051 }