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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.2
import QtQuick.Controls 1.2
import QtQuick.Controls.Private 1.0
/*!
\qmltype AbstractCheckable
\inqmlmodule QtQuick.Controls
\brief An abstract representation of a checkable control with a label
\qmlabstract
\internal
A checkable control is one that has two states: checked (on) and
unchecked (off). AbstractCheckable encapsulates the basic behavior and
states that are required by checkable controls.
Examples of checkable controls are RadioButton and
CheckBox. CheckBox extends AbstractCheckable's behavior by adding a third
state: partially checked.
*/
Control {
id: abstractCheckable
/*!
Emitted whenever the control is clicked.
*/
signal clicked
/*!
\qmlproperty bool AbstractCheckable::pressed
This property is \c true if the control is being pressed.
Set this property to manually invoke a mouse click.
*/
property alias pressed: mouseArea.effectivePressed
/*! \qmlproperty bool AbstractCheckcable::hovered
This property indicates whether the control is being hovered.
*/
readonly property alias hovered: mouseArea.containsMouse
/*!
This property is \c true if the control is checked.
*/
property bool checked: false
Accessible.checked: checked
Accessible.checkable: true
/*!
This property is \c true if the control takes the focus when it is
pressed; \l{QQuickItem::forceActiveFocus()}{forceActiveFocus()} will be
called on the control.
*/
property bool activeFocusOnPress: false
/*!
This property stores the ExclusiveGroup that the control belongs to.
*/
property ExclusiveGroup exclusiveGroup: null
/*!
This property holds the text that the label should display.
*/
property string text
/*! \internal */
property var __cycleStatesHandler: cycleRadioButtonStates
activeFocusOnTab: true
MouseArea {
id: mouseArea
focus: true
anchors.fill: parent
hoverEnabled: Settings.hoverEnabled
enabled: !keyPressed
property bool keyPressed: false
property bool effectivePressed: pressed && containsMouse || keyPressed
onClicked: abstractCheckable.clicked();
onPressed: if (activeFocusOnPress) forceActiveFocus();
onReleased: {
if (containsMouse && (!exclusiveGroup || !checked))
__cycleStatesHandler();
}
}
/*! \internal */
onExclusiveGroupChanged: {
if (exclusiveGroup)
exclusiveGroup.bindCheckable(abstractCheckable)
}
Keys.onPressed: {
if (event.key === Qt.Key_Space && !event.isAutoRepeat && !mouseArea.pressed)
mouseArea.keyPressed = true;
}
Keys.onReleased: {
if (event.key === Qt.Key_Space && !event.isAutoRepeat && mouseArea.keyPressed) {
mouseArea.keyPressed = false;
if (!exclusiveGroup || !checked)
__cycleStatesHandler();
clicked();
}
}
Action {
// handle mnemonic
text: abstractCheckable.text
onTriggered: {
if (!abstractCheckable.exclusiveGroup || !abstractCheckable.checked)
abstractCheckable.__cycleStatesHandler();
abstractCheckable.clicked();
}
}
}
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