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Current File : C:/Windows/Temp/MBInstallTemp/ctlrpkg/QtQuick/Controls/Private/ModalPopupBehavior.qml |
/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Quick Controls module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** 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 Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or 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.GPL2 and 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-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ import QtQuick 2.2 // KNOWN ISSUES // none /*! \qmltype ModalPopupBehavior \internal \inqmlmodule QtQuick.Controls.Private */ Item { id: popupBehavior property bool showing: false property bool whenAlso: true // modifier to the "showing" property property bool consumeCancelClick: true property int delay: 0 // delay before popout becomes visible property int deallocationDelay: 3000 // 3 seconds property Component popupComponent property alias popup: popupLoader.item // read-only property alias window: popupBehavior.root // read-only signal prepareToShow signal prepareToHide signal cancelledByClick // implementation anchors.fill: parent onShowingChanged: notifyChange() onWhenAlsoChanged: notifyChange() function notifyChange() { if(showing && whenAlso) { if(popupLoader.sourceComponent == undefined) { popupLoader.sourceComponent = popupComponent; } } else { mouseArea.enabled = false; // disable before opacity is changed in case it has fading behavior if(Qt.isQtObject(popupLoader.item)) { popupBehavior.prepareToHide(); popupLoader.item.opacity = 0; } } } property Item root: findRoot() function findRoot() { var p = parent; while(p.parent != undefined) p = p.parent; return p; } MouseArea { id: mouseArea anchors.fill: parent enabled: false // enabled only when popout is showing onPressed: { popupBehavior.showing = false; mouse.accepted = consumeCancelClick; cancelledByClick(); } } Loader { id: popupLoader } Timer { // visibility timer running: Qt.isQtObject(popupLoader.item) && showing && whenAlso interval: delay onTriggered: { popupBehavior.prepareToShow(); mouseArea.enabled = true; popup.opacity = 1; } } Timer { // deallocation timer running: Qt.isQtObject(popupLoader.item) && popupLoader.item.opacity == 0 interval: deallocationDelay onTriggered: popupLoader.sourceComponent = undefined } states: State { name: "active" when: Qt.isQtObject(popupLoader.item) && popupLoader.item.opacity > 0 ParentChange { target: popupBehavior; parent: root } } }