AutoScroller.qml Example File
basic/content/AutoScroller.qml/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:GPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3 or (at your option) any later version ** approved by the KDE Free Qt Foundation. The licenses are as published by ** the Free Software Foundation and appearing in the file LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ import QtQuick 2.0 import QtQuick.VirtualKeyboard 2.1 Item { property var flickable readonly property var inputItem: InputContext.inputItem onInputItemChanged: delayedLoading.start() function ensureVisible(flickable) { if (!Qt.inputMethod.visible || !inputItem || !flickable || !flickable.visible/* || !flickable.interactive*/) return; var verticallyFlickable = (flickable.flickableDirection === Flickable.HorizontalAndVerticalFlick || flickable.flickableDirection === Flickable.VerticalFlick || (flickable.flickableDirection === Flickable.AutoFlickDirection && flickable.contentHeight > flickable.height)) var horizontallyFlickable = (flickable.flickableDirection === Flickable.HorizontalAndVerticalFlick || flickable.flickableDirection === Flickable.HorizontalFlick || (flickable.flickableDirection === Flickable.AutoFlickDirection && flickable.contentWidth > flickable.width)) if ((!verticallyFlickable && !horizontallyFlickable) || !inputItem.hasOwnProperty("cursorRectangle")) return var cursorRectangle = flickable.contentItem.mapFromItem(inputItem, inputItem.cursorRectangle.x, inputItem.cursorRectangle.y) if (verticallyFlickable) { var scrollMarginVertical = flickable.scrollMarginVertical ? flickable.scrollMarginVertical : 10 if (flickable.contentY >= cursorRectangle.y - scrollMarginVertical) { // The flickable is foo far down; move it up. flickable.contentY = Math.max(0, cursorRectangle.y - scrollMarginVertical) } else if (flickable.contentY + flickable.height <= cursorRectangle.y + inputItem.cursorRectangle.height + scrollMarginVertical) { // The flickable is foo far up; move it down. flickable.contentY = Math.min(flickable.contentHeight - flickable.height, cursorRectangle.y + inputItem.cursorRectangle.height - flickable.height + scrollMarginVertical) } } if (horizontallyFlickable) { var scrollMarginHorizontal = flickable.scrollMarginHorizontal ? flickable.scrollMarginHorizontal : 10 if (flickable.contentX >= cursorRectangle.x - scrollMarginHorizontal) { // The flickable is foo far down; move it up. flickable.contentX = Math.max(0, cursorRectangle.x - scrollMarginHorizontal) } else if (flickable.contentX + flickable.width <= cursorRectangle.x + inputItem.cursorRectangle.width + scrollMarginHorizontal) { // The flickable is foo far up; move it down. flickable.contentX = Math.min(flickable.contentWidth - flickable.width, cursorRectangle.x + inputItem.cursorRectangle.width - flickable.width + scrollMarginHorizontal) } } } Timer { id: delayedLoading interval: 10 onTriggered: ensureVisible(flickable) } Connections { ignoreUnknownSignals: true target: Qt.inputMethod onKeyboardRectangleChanged: delayedLoading.start() } Connections { ignoreUnknownSignals: true target: inputItem enabled: inputItem && inputItem.activeFocus onCursorRectangleChanged: delayedLoading.start() } }