qquickmenuitem.cpp

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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#include "qquickmenuitem_p.h"
#include "qquickmenuitem_p_p.h"
#include "qquickmenu_p.h"
#include "qquickdeferredexecute_p_p.h"
 
#include <QtGui/qpa/qplatformtheme.h>
#include <QtQuick/private/qquickevents_p_p.h>
 
QT_BEGIN_NAMESPACE
 
 
void QQuickMenuItemPrivate::setMenu(QQuickMenu *newMenu)
{
    Q_Q(QQuickMenuItem);
    if (menu == newMenu)
        return;
 
    menu = newMenu;
    emit q->menuChanged();
}
 
void QQuickMenuItemPrivate::setSubMenu(QQuickMenu *newSubMenu)
{
    Q_Q(QQuickMenuItem);
    if (subMenu == newSubMenu)
        return;
 
    if (subMenu) {
        QObject::disconnect(subMenu, &QQuickMenu::titleChanged, q, &QQuickAbstractButton::setText);
        QObject::disconnect(subMenu, &QQuickMenu::iconChanged, q, &QQuickAbstractButton::setIcon);
        QObjectPrivate::disconnect(subMenu, &QQuickPopup::enabledChanged, this, &QQuickMenuItemPrivate::updateEnabled);
    }
 
    if (newSubMenu) {
        QObject::connect(newSubMenu, &QQuickMenu::titleChanged, q, &QQuickAbstractButton::setText);
        QObject::connect(newSubMenu, &QQuickMenu::iconChanged, q, &QQuickAbstractButton::setIcon);
        QObjectPrivate::connect(newSubMenu, &QQuickPopup::enabledChanged, this, &QQuickMenuItemPrivate::updateEnabled);
        q->setText(newSubMenu->title());
        q->setIcon(newSubMenu->icon());
    }
 
    subMenu = newSubMenu;
    updateEnabled();
    emit q->subMenuChanged();
}
 
void QQuickMenuItemPrivate::updateEnabled()
{
    Q_Q(QQuickMenuItem);
    q->setEnabled(subMenu && subMenu->isEnabled());
}
 
static inline QString arrowName() { return QStringLiteral("arrow"); }
 
void QQuickMenuItemPrivate::cancelArrow()
{
    Q_Q(QQuickAbstractButton);
    quickCancelDeferred(q, arrowName());
}
 
void QQuickMenuItemPrivate::executeArrow(bool complete)
{
    Q_Q(QQuickMenuItem);
    if (arrow.wasExecuted())
        return;
 
    if (!arrow || complete)
        quickBeginDeferred(q, arrowName(), arrow);
    if (complete)
        quickCompleteDeferred(q, arrowName(), arrow);
}
 
bool QQuickMenuItemPrivate::acceptKeyClick(Qt::Key key) const
{
    return key == Qt::Key_Return || key == Qt::Key_Enter
            || QQuickAbstractButtonPrivate::acceptKeyClick(key);
}
 
QPalette QQuickMenuItemPrivate::defaultPalette() const
{
    return QQuickTheme::palette(QQuickTheme::Menu);
}
 
QQuickMenuItem::QQuickMenuItem(QQuickItem *parent)
    : QQuickAbstractButton(*(new QQuickMenuItemPrivate), parent)
{
    connect(this, &QQuickAbstractButton::clicked, this, &QQuickMenuItem::triggered);
}
 
bool QQuickMenuItem::isHighlighted() const
{
    Q_D(const QQuickMenuItem);
    return d->highlighted;
}
 
void QQuickMenuItem::setHighlighted(bool highlighted)
{
    Q_D(QQuickMenuItem);
    if (highlighted == d->highlighted)
        return;
 
    d->highlighted = highlighted;
    emit highlightedChanged();
}
 
QQuickItem *QQuickMenuItem::arrow() const
{
    QQuickMenuItemPrivate *d = const_cast<QQuickMenuItemPrivate *>(d_func());
    if (!d->arrow)
        d->executeArrow();
    return d->arrow;
}
 
void QQuickMenuItem::setArrow(QQuickItem *arrow)
{
    Q_D(QQuickMenuItem);
    if (d->arrow == arrow)
        return;
 
    if (!d->arrow.isExecuting())
        d->cancelArrow();
 
    QQuickControlPrivate::hideOldItem(d->arrow);
    d->arrow = arrow;
    if (arrow && !arrow->parentItem())
        arrow->setParentItem(this);
    if (!d->arrow.isExecuting())
        emit arrowChanged();
}
 
QQuickMenu *QQuickMenuItem::menu() const
{
    Q_D(const QQuickMenuItem);
    return d->menu;
}
 
QQuickMenu *QQuickMenuItem::subMenu() const
{
    Q_D(const QQuickMenuItem);
    return d->subMenu;
}
 
void QQuickMenuItem::componentComplete()
{
    Q_D(QQuickMenuItem);
    d->executeArrow(true);
    QQuickAbstractButton::componentComplete();
}
 
QFont QQuickMenuItem::defaultFont() const
{
    return QQuickTheme::font(QQuickTheme::Menu);
}
 
#if QT_CONFIG(accessibility)
QAccessible::Role QQuickMenuItem::accessibleRole() const
{
    return QAccessible::MenuItem;
}
#endif
 
QT_END_NAMESPACE
 
#include "moc_qquickmenuitem_p.cpp"