kwin/src/appmenu.cpp
2023-03-13 10:37:01 +00:00

113 lines
4.4 KiB
C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2011 Lionel Chauvin <megabigbug@yahoo.fr>
SPDX-FileCopyrightText: 2011, 2012 Cédric Bellegarde <gnumdk@gmail.com>
SPDX-FileCopyrightText: 2013 Martin Gräßlin <mgraesslin@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "appmenu.h"
#include "workspace.h"
#include "x11window.h"
#include <appmenu_interface.h>
#include <QDBusObjectPath>
#include <QDBusServiceWatcher>
#include "decorations/decorationbridge.h"
#include <KDecoration2/DecorationSettings>
namespace KWin
{
static const QString s_viewService(QStringLiteral("org.kde.kappmenuview"));
ApplicationMenu::ApplicationMenu()
: m_appmenuInterface(new OrgKdeKappmenuInterface(QStringLiteral("org.kde.kappmenu"), QStringLiteral("/KAppMenu"), QDBusConnection::sessionBus(), this))
{
connect(m_appmenuInterface, &OrgKdeKappmenuInterface::showRequest, this, &ApplicationMenu::slotShowRequest);
connect(m_appmenuInterface, &OrgKdeKappmenuInterface::menuShown, this, &ApplicationMenu::slotMenuShown);
connect(m_appmenuInterface, &OrgKdeKappmenuInterface::menuHidden, this, &ApplicationMenu::slotMenuHidden);
m_kappMenuWatcher = new QDBusServiceWatcher(QStringLiteral("org.kde.kappmenu"), QDBusConnection::sessionBus(),
QDBusServiceWatcher::WatchForRegistration | QDBusServiceWatcher::WatchForUnregistration, this);
connect(m_kappMenuWatcher, &QDBusServiceWatcher::serviceRegistered, this, [this]() {
m_applicationMenuEnabled = true;
Q_EMIT applicationMenuEnabledChanged(true);
});
connect(m_kappMenuWatcher, &QDBusServiceWatcher::serviceUnregistered, this, [this]() {
m_applicationMenuEnabled = false;
Q_EMIT applicationMenuEnabledChanged(false);
});
m_applicationMenuEnabled = QDBusConnection::sessionBus().interface()->isServiceRegistered(QStringLiteral("org.kde.kappmenu"));
}
bool ApplicationMenu::applicationMenuEnabled() const
{
return m_applicationMenuEnabled;
}
void ApplicationMenu::setViewEnabled(bool enabled)
{
if (enabled) {
QDBusConnection::sessionBus().interface()->registerService(s_viewService,
QDBusConnectionInterface::QueueService,
QDBusConnectionInterface::DontAllowReplacement);
} else {
QDBusConnection::sessionBus().interface()->unregisterService(s_viewService);
}
}
void ApplicationMenu::slotShowRequest(const QString &serviceName, const QDBusObjectPath &menuObjectPath, int actionId)
{
// Ignore show request when user has not configured the application menu title bar button
auto decorationSettings = Workspace::self()->decorationBridge()->settings();
if (decorationSettings && !decorationSettings->decorationButtonsLeft().contains(KDecoration2::DecorationButtonType::ApplicationMenu)
&& !decorationSettings->decorationButtonsRight().contains(KDecoration2::DecorationButtonType::ApplicationMenu)) {
return;
}
if (Window *window = findWindowWithApplicationMenu(serviceName, menuObjectPath)) {
window->showApplicationMenu(actionId);
}
}
void ApplicationMenu::slotMenuShown(const QString &serviceName, const QDBusObjectPath &menuObjectPath)
{
if (Window *window = findWindowWithApplicationMenu(serviceName, menuObjectPath)) {
window->setApplicationMenuActive(true);
}
}
void ApplicationMenu::slotMenuHidden(const QString &serviceName, const QDBusObjectPath &menuObjectPath)
{
if (Window *window = findWindowWithApplicationMenu(serviceName, menuObjectPath)) {
window->setApplicationMenuActive(false);
}
}
void ApplicationMenu::showApplicationMenu(const QPoint &p, Window *c, int actionId)
{
if (!c->hasApplicationMenu()) {
return;
}
m_appmenuInterface->showMenu(p.x(), p.y(), c->applicationMenuServiceName(), QDBusObjectPath(c->applicationMenuObjectPath()), actionId);
}
Window *ApplicationMenu::findWindowWithApplicationMenu(const QString &serviceName, const QDBusObjectPath &menuObjectPath)
{
if (serviceName.isEmpty() || menuObjectPath.path().isEmpty()) {
return nullptr;
}
return Workspace::self()->findWindow([&](const Window *window) {
return window->applicationMenuServiceName() == serviceName
&& window->applicationMenuObjectPath() == menuObjectPath.path();
});
}
} // namespace KWin