Replace ScrollArea with a QQuickControls ScrollView
Included is a plasma theme to make it look the same. A known regression is that SectionScroller is temporarily removed but that is currently not used in plasma-desktop and this fixes a lot more problems than it causes. REVIEW: 114283
This commit is contained in:
David Edmundson
parent
4f14f4ceb9
commit
66e2b915f6
@ -1,5 +1,5 @@
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/*
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* Copyright 2012 Marco Martin <mart@kde.org>
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* Copyright 2014 David Edmundson <davidedmundson@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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@ -17,243 +17,20 @@
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* 51 Franklin Street, Fifth Floor, Boston, MA 2.010-1301, USA.
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*/
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import QtQuick 2.0
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import org.kde.plasma.components 2.0 as PlasmaComponents
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import org.kde.plasma.core 2.0 as PlasmaCore
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import QtQuick.Controls 1.1 as QtQuickControls
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import "styles" as Styles
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/**
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* This item takes a Flickable and automatically puts scrollbars in adjusting
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* the layout if needed. The scrollbars will be interactive or not, depending
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* on the platform. If flickableItem is a categorized ListView the vertical
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* scrollbar will be a SectionScroller.
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*
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* See QtControls.ScrollView for full API
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*/
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Item {
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QtQuickControls.ScrollView {
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id: root
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/**
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* The Flickable of this area: it can be either a Flickable or a subclass,
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* ListView or GridView
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*/
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property Flickable flickableItem
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//FIXME: this alias seems necessary for it to correctly parse
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default property alias flickableItemDefault: root.flickableItem
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Connections {
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target: root
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onFlickableItemChanged: {
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root.flickableItem.parent = root
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root.flickableItem.anchors.fill = root
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root.flickableItem.clip = true
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internal.checkVerticalScrollBar()
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internal.checkHorizontalScrollBar()
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}
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}
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Component.onCompleted: {
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root.flickableItem.parent = root
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root.flickableItem.anchors.fill = root
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root.flickableItem.clip = true
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internal.checkVerticalScrollBar()
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internal.checkHorizontalScrollBar()
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}
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Connections {
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target: flickableItem
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onContentHeightChanged: internal.checkVerticalScrollBar()
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onHeightChanged: internal.checkVerticalScrollBar()
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onContentWidthChanged: internal.checkHorizontalScrollBar()
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onWidthChanged: internal.checkHorizontalScrollBar()
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}
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QtObject {
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id: internal
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property Item verticalScrollBar
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property Item horizontalScrollBar
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function checkVerticalScrollBar() {
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if (!flickableItem) {
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return
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}
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if (flickableItem.contentHeight > flickableItem.height) {
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//Do we have to change the type?
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//from section to normal
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if ((!flickableItem.model || flickableItem.model.get === undefined || !flickableItem.section || !flickableItem.section.property) &&
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(!verticalScrollBar || verticalScrollBar.orientation === undefined)) {
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if (verticalScrollBar) verticalScrollBar.destroy()
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verticalScrollBar = verticalScrollBarComponent.createObject(root)
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//from normal to section
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} else if (flickableItem.section && flickableItem.section.property &&
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flickableItem.model.get !== undefined &&
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(!verticalScrollBar || verticalScrollBar.orientation !== undefined)) {
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if (verticalScrollBar) verticalScrollBar.destroy()
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verticalScrollBar = sectionScrollerComponent.createObject(root)
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}
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}
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checkVerticalScrollBarMargins()
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}
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function checkVerticalScrollBarMargins() {
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//undefined in case of SectionScroller
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if ((flickableItem.contentHeight > flickableItem.height) &&
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((verticalScrollBar.interactive && verticalScrollBar.visible) || (verticalScrollBar.orientation === undefined &&
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//FIXME: heuristic on width to distinguish the touch sectionscroller
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verticalScrollBar.width < 30))) {
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flickableItem.anchors.rightMargin = verticalScrollBar.width
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} else {
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flickableItem.anchors.rightMargin = 0
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}
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}
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function checkHorizontalScrollBar() {
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if (!flickableItem || horizontalScrollBar) {
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return
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}
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if (flickableItem.contentWidth > flickableItem.width) {
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if (!horizontalScrollBar) {
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horizontalScrollBar = horizontalScrollBarComponent.createObject(root)
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}
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}
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checkHorizontalScrollBarMargins()
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}
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function checkHorizontalScrollBarMargins() {
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if ((flickableItem.contentWidth > flickableItem.width) &&
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horizontalScrollBar.interactive && horizontalScrollBar.visible) {
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flickableItem.anchors.bottomMargin = horizontalScrollBar.height
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} else {
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flickableItem.anchors.bottomMargin = 0
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}
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}
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}
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Component {
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id: verticalScrollBarComponent
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PlasmaComponents.ScrollBar {
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flickableItem: root.flickableItem
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orientation: Qt.Vertical
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property bool isScrollBar: true
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z: root.flickableItem.z + 1
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anchors {
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left: undefined
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top: root.top
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right: root.right
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bottom: root.bottom
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bottomMargin: root.height - root.flickableItem.height
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}
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onVisibleChanged: internal.checkVerticalScrollBarMargins()
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}
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}
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Component {
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id: horizontalScrollBarComponent
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PlasmaComponents.ScrollBar {
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flickableItem: root.flickableItem
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orientation: Qt.Horizontal
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z: root.flickableItem.z + 1
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anchors {
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left: root.left
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top: undefined
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right: root.right
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bottom: root.bottom
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rightMargin: root.width - root.flickableItem.width
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}
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onVisibleChanged: internal.checkHorizontalScrollBarMargins()
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}
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}
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Component {
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id: sectionScrollerComponent
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PlasmaComponents.SectionScroller {
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listView: root.flickableItem
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property bool isScrollBar: false
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z: root.flickableItem.z + 1
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anchors {
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left: undefined
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top: root.top
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right: root.right
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bottom: root.bottom
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bottomMargin: root.height - root.flickableItem.height
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}
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onVisibleChanged: internal.checkVerticalScrollBarMargins()
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}
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}
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//FIXME: create all this stuff only on demand, like scrollbars?
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PlasmaCore.Svg {
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id: borderSvg
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imagePath: "widgets/scrollwidget"
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}
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PlasmaCore.SvgItem {
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svg: borderSvg
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z: 1000
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elementId: "border-top"
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width: 100
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height: naturalSize.height
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opacity: flickableItem.atYBeginning ? 0 : 1
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Behavior on opacity {
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NumberAnimation {
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duration: units.longDuration
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easing.type: Easing.InOutQuad
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}
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}
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anchors {
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left: parent.left
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top: parent.top
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right: parent.right
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topMargin: flickableItem.anchors.topMargin
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}
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}
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PlasmaCore.SvgItem {
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svg: borderSvg
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z: 1000
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elementId: "border-bottom"
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width: 100
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height: naturalSize.height
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opacity: flickableItem.atYEnd ? 0 : 1
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Behavior on opacity {
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NumberAnimation {
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duration: units.longDuration
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easing.type: Easing.InOutQuad
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}
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}
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anchors {
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left: parent.left
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bottom: parent.bottom
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right: parent.right
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bottomMargin: flickableItem.anchors.bottomMargin
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}
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}
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PlasmaCore.SvgItem {
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svg: borderSvg
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z: 1000
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elementId: "border-left"
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width: naturalSize.width
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opacity: flickableItem.atXBeginning ? 0 : 1
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Behavior on opacity {
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NumberAnimation {
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duration: units.longDuration
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easing.type: Easing.InOutQuad
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}
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}
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anchors {
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left: parent.left
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top: parent.top
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bottom: parent.bottom
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leftMargin: flickableItem.anchors.leftMargin
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}
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}
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PlasmaCore.SvgItem {
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svg: borderSvg
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z: 1000
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elementId: "border-right"
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width: naturalSize.width
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opacity: flickableItem.atXEnd ? 0 : 1
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Behavior on opacity {
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NumberAnimation {
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duration: units.longDuration
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easing.type: Easing.InOutQuad
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}
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}
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anchors {
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top: parent.top
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bottom: parent.bottom
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right: parent.right
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rightMargin: flickableItem.anchors.rightMargin
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}
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}
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style: Styles.ScrollViewStyle{}
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}
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@ -0,0 +1,182 @@
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/*
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* Copyright 2012 Marco Martin <mart@kde.org>
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* Copyright (C) 2014 by David Edmundson <davidedmundson@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 2.010-1301, USA.
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*/
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import QtQuick 2.0
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import QtQuick.Controls.Styles 1.1 as QtQuickControlStyle
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import org.kde.plasma.core 2.0 as PlasmaCore
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import org.kde.plasma.components 2.0 as PlasmaComponents
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QtQuickControlStyle.ScrollViewStyle {
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property Flickable flickableItem: control.flickableItem
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property real widthHint: scrollbarSvg.hasElement("hint-scrollbar-size") ? scrollbarSvg.elementSize("hint-scrollbar-size").width : scrollbarSvg.elementSize("arrow-up").width
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frame: Item {
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PlasmaCore.Svg {
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id: borderSvg
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imagePath: "widgets/scrollwidget"
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}
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PlasmaCore.SvgItem {
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svg: borderSvg
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z: 1000
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elementId: "border-top"
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width: 100
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height: naturalSize.height
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opacity: flickableItem.atYBeginning ? 0 : 1
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Behavior on opacity {
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NumberAnimation {
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duration: units.longDuration
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easing.type: Easing.InOutQuad
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}
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}
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anchors {
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left: parent.left
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top: parent.top
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right: parent.right
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topMargin: flickableItem.anchors.topMargin
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}
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}
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PlasmaCore.SvgItem {
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svg: borderSvg
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z: 1000
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elementId: "border-bottom"
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width: 100
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height: naturalSize.height
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opacity: flickableItem.atYEnd ? 0 : 1
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Behavior on opacity {
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NumberAnimation {
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duration: units.longDuration
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easing.type: Easing.InOutQuad
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}
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}
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anchors {
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left: parent.left
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bottom: parent.bottom
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right: parent.right
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bottomMargin: flickableItem.anchors.bottomMargin
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}
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}
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PlasmaCore.SvgItem {
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svg: borderSvg
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z: 1000
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elementId: "border-left"
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width: naturalSize.width
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opacity: flickableItem.atXBeginning ? 0 : 1
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Behavior on opacity {
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NumberAnimation {
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duration: units.longDuration
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easing.type: Easing.InOutQuad
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}
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}
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anchors {
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left: parent.left
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top: parent.top
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bottom: parent.bottom
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leftMargin: flickableItem.anchors.leftMargin
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}
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}
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PlasmaCore.SvgItem {
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svg: borderSvg
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z: 1000
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elementId: "border-right"
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width: naturalSize.width
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opacity: flickableItem.atXEnd ? 0 : 1
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Behavior on opacity {
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NumberAnimation {
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duration: units.longDuration
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easing.type: Easing.InOutQuad
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}
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}
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anchors {
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top: parent.top
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bottom: parent.bottom
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right: parent.right
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rightMargin: flickableItem.anchors.rightMargin
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}
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}
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}
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scrollBarBackground: PlasmaCore.FrameSvgItem {
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imagePath:"widgets/scrollbar"
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prefix: styleData.horizontal ? "background-horizontal" : "background-vertical"
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implicitWidth: widthHint
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}
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handle: PlasmaCore.FrameSvgItem {
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imagePath:"widgets/scrollbar"
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implicitWidth: widthHint
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implicitHeight: widthHint
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prefix: {
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if (styleData.hovered) {
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return "sunken-slider"
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}
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if (styleData.pressed) {
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return "mouseover-slider"
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} else {
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return "slider"
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}
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}
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}
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incrementControl: PlasmaCore.SvgItem {
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svg: scrollbarSvg
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visible: scrollbarSvg.arrowPresent
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//if there is no arrow we don't want to waste space, a tiny margin does look better though
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implicitWidth: scrollbarSvg.arrowPresent ? widthHint : units.smallSpacing
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implicitHeight: scrollbarSvg.arrowPresent ? widthHint : units.smallSpacing
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elementId: {
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if (styleData.pressed) {
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return styleData.horizontal ? "sunken-arrow-right" : "sunken-arrow-down"
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}
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if (styleData.hovered) {
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return styleData.horizontal ? "mouseover-arrow-right" : "mouseover-arrow-down"
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} else {
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return styleData.horizontal ? "arrow-right" : "arrow-down"
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}
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}
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}
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decrementControl: PlasmaCore.SvgItem {
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svg: scrollbarSvg
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visible: scrollbarSvg.arrowPresent
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implicitWidth: scrollbarSvg.arrowPresent ? widthHint : units.smallSpacing
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implicitHeight: scrollbarSvg.arrowPresent ? widthHint : units.smallSpacing
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elementId: {
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if (styleData.pressed) {
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return styleData.horizontal ? "sunken-arrow-left" : "sunken-arrow-up"
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}
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if (styleData.hovered) {
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return styleData.horizontal ? "mouseover-arrow-left" : "mouseover-arrow-up"
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} else {
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return styleData.horizontal ? "arrow-left" : "arrow-up"
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}
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}
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}
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PlasmaCore.Svg {
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id: scrollbarSvg
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imagePath: "widgets/scrollbar"
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property bool arrowPresent: scrollbarSvg.hasElement("arrow-up")
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//new theme may be different
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onRepaintNeeded: arrowPresent = scrollbarSvg.hasElement("arrow-up")
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}
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}
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