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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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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