mirror of
https://invent.kde.org/marcoa/shift-shell.git
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114 lines
4.3 KiB
QML
114 lines
4.3 KiB
QML
/*
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* SPDX-FileCopyrightText: 2021 Marco Martin <mart@kde.org>
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* SPDX-FileCopyrightText: 2021 Devin Lin <devin@kde.org>
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*
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* SPDX-License-Identifier: LGPL-2.0-or-later
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*/
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import QtQuick 2.14
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import org.kde.plasma.core 2.0 as PlasmaCore
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import org.kde.plasma.private.mobileshell 1.0 as MobileShell
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import ".." as Launcher
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DragHandler {
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id: root
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yAxis.enabled: enabled
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xAxis.enabled: enabled
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property Flickable mainFlickable
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property Launcher.AbstractAppDrawer appDrawer
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signal snapPage
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signal snapNextPage
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signal snapPrevPage
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enum ScrollDirection {
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None,
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Left,
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Right,
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Vertical
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}
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property real __initialMainFlickableX
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property real __oldTranslationY: 0
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property int __scrollDirection: DragGestureHandler.None
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onTranslationChanged: {
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if (active) {
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if (root.appDrawer) {
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if (__scrollDirection === DragGestureHandler.None) {
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if (root.appDrawer.flickable.contentY > PlasmaCore.Units.gridUnit * 2) {
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__scrollDirection = DragGestureHandler.Vertical;
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snapPage();
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} else if (mainFlickable.contentX - __initialMainFlickableX > PlasmaCore.Units.gridUnit) {
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__scrollDirection = DragGestureHandler.Right;
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root.appDrawer.close();
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} else if (__initialMainFlickableX - mainFlickable.contentX > PlasmaCore.Units.gridUnit) {
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__scrollDirection = DragGestureHandler.Left;
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root.appDrawer.close();
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}
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}
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if (__scrollDirection !== DragGestureHandler.Left && __scrollDirection !== DragGestureHandler.Right) {
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// ensure it does not conflict with task switcher
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if (!MobileShell.HomeScreenControls.taskSwitcher.visible) {
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// if swipe up, scroll app drawer
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root.appDrawer.flickable.contentY = Math.min(root.appDrawer.drawerTopMargin, Math.max(0, -translation.y));
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if (translation.y < 0 && MobileShell.TopPanelControls.inSwipe) {
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MobileShell.TopPanelControls.endSwipe();
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}
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// if swipe down, scroll top panel
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if (translation.y > 0) {
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if (!MobileShell.TopPanelControls.inSwipe) {
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MobileShell.TopPanelControls.startSwipe();
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}
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MobileShell.TopPanelControls.requestRelativeScroll(translation.y - __oldTranslationY);
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}
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}
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}
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}
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if (__scrollDirection !== DragGestureHandler.Vertical) {
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let newContentX = Math.min((mainFlickable.width * mainFlickable.totalPages) - mainFlickable.width, Math.max(0, __initialMainFlickableX - translation.x));
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if (__scrollDirection !== DragGestureHandler.None) {
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if (mainFlickable.contentX < newContentX) {
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__scrollDirection = DragGestureHandler.Right;
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} else {
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__scrollDirection = DragGestureHandler.Left;
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}
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}
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mainFlickable.contentX = newContentX;
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}
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}
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__oldTranslationY = translation.y;
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}
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onActiveChanged: {
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if (active) {
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__initialMainFlickableX = mainFlickable.contentX;
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} else {
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if (root.appDrawer) {
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root.appDrawer.snapDrawerStatus();
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}
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if (MobileShell.TopPanelControls.inSwipe) {
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MobileShell.TopPanelControls.endSwipe();
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}
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if (__scrollDirection === DragGestureHandler.Left && (__initialMainFlickableX - mainFlickable.contentX > PlasmaCore.Units.gridUnit * 5)) {
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snapPrevPage();
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} else if (__scrollDirection === DragGestureHandler.Right && (mainFlickable.contentX - __initialMainFlickableX > PlasmaCore.Units.gridUnit * 5)) {
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snapNextPage();
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} else {
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snapPage();
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}
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__scrollDirection = DragGestureHandler.None;
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}
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}
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}
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