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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Quick Controls module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.1
import QtQuick.Controls 1.1
/*!
\qmltype AbstractCheckable
\inqmlmodule QtQuick.Controls
\ingroup 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
/*!
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: true
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();
}
}
}
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