AutoScroller.qml Example File

basic/content/AutoScroller.qml
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import QtQuick 2.0 import QtQuick.VirtualKeyboard 2.1 Item { property var innerFlickable property var outerFlickable property var inputItem: InputContext.priv.inputItem onInputItemChanged: { innerFlickable = null outerFlickable = null if (inputItem !== null) { var parent_ = inputItem.parent while (parent_) { if (parent_.maximumFlickVelocity) { if (innerFlickable) { outerFlickable = parent_ break } else { innerFlickable = parent_ } } parent_ = parent_.parent } delayedLoading.restart() } } function ensureVisible(flickable) { if (Qt.inputMethod.visible && inputItem && flickable && flickable.visible && flickable.interactive) { 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) var oldContentY = flickable.contentY if (verticallyFlickable) { var scrollMarginVertical = (flickable && flickable.scrollMarginVertical) ? flickable.scrollMarginVertical : 10 if (flickable.contentY >= cursorRectangle.y - scrollMarginVertical) flickable.contentY = Math.max(0, cursorRectangle.y - scrollMarginVertical) else if (flickable.contentY + flickable.height <= cursorRectangle.y + inputItem.cursorRectangle.height + scrollMarginVertical) flickable.contentY = Math.min(flickable.contentHeight - flickable.height, cursorRectangle.y + inputItem.cursorRectangle.height - flickable.height + scrollMarginVertical) } if (horizontallyFlickable) { var scrollMarginHorizontal = (flickable && flickable.scrollMarginHorizontal) ? flickable.scrollMarginHorizontal : 10 if (flickable.contentX >= cursorRectangle.x - scrollMarginHorizontal) flickable.contentX = Math.max(0, cursorRectangle.x - scrollMarginHorizontal) else if (flickable.contentX + flickable.width <= cursorRectangle.x + inputItem.cursorRectangle.width + scrollMarginHorizontal) flickable.contentX = Math.min(flickable.contentWidth - flickable.width, cursorRectangle.x + inputItem.cursorRectangle.width - flickable.width + scrollMarginHorizontal) } } } Timer { id: delayedLoading interval: 10 onTriggered: { ensureVisible(innerFlickable) ensureVisible(outerFlickable) } } Connections { ignoreUnknownSignals: true target: Qt.inputMethod onAnimatingChanged: if (inputItem && !Qt.inputMethod.animating) delayedLoading.restart() onKeyboardRectangleChanged: if (inputItem) delayedLoading.restart() onCursorRectangleChanged: if (inputItem && inputItem.activeFocus) delayedLoading.restart() } }