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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
import QtQuick
import QtQuick.VirtualKeyboard
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
function onAnimatingChanged() { if (inputItem && !Qt.inputMethod.animating) delayedLoading.restart() }
function onKeyboardRectangleChanged() { if (inputItem) delayedLoading.restart() }
function onCursorRectangleChanged() { if (inputItem && inputItem.activeFocus) delayedLoading.restart() }
}
}
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