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39
40#include "qdbusmenubar_p.h"
41#include "qdbusmenuregistrarproxy_p.h"
42
43QT_BEGIN_NAMESPACE
44
45/* note: do not change these to QStringLiteral;
46 we are unloaded before QtDBus is done using the strings.
47 */
48#define REGISTRAR_SERVICE QLatin1String("com.canonical.AppMenu.Registrar")
49#define REGISTRAR_PATH QLatin1String("/com/canonical/AppMenu/Registrar")
50
51QDBusMenuBar::QDBusMenuBar()
52 : QPlatformMenuBar()
53 , m_menu(new QDBusPlatformMenu())
54 , m_menuAdaptor(new QDBusMenuAdaptor(m_menu))
55 , m_windowId(0)
56{
57 QDBusMenuItem::registerDBusTypes();
58 connect(sender: m_menu, signal: &QDBusPlatformMenu::propertiesUpdated,
59 receiver: m_menuAdaptor, slot: &QDBusMenuAdaptor::ItemsPropertiesUpdated);
60 connect(sender: m_menu, signal: &QDBusPlatformMenu::updated,
61 receiver: m_menuAdaptor, slot: &QDBusMenuAdaptor::LayoutUpdated);
62 connect(sender: m_menu, signal: &QDBusPlatformMenu::popupRequested,
63 receiver: m_menuAdaptor, slot: &QDBusMenuAdaptor::ItemActivationRequested);
64}
65
66QDBusMenuBar::~QDBusMenuBar()
67{
68 unregisterMenuBar();
69 delete m_menuAdaptor;
70 delete m_menu;
71 qDeleteAll(c: m_menuItems);
72}
73
74QDBusPlatformMenuItem *QDBusMenuBar::menuItemForMenu(QPlatformMenu *menu)
75{
76 if (!menu)
77 return nullptr;
78 quintptr tag = menu->tag();
79 const auto it = m_menuItems.constFind(akey: tag);
80 if (it != m_menuItems.cend()) {
81 return *it;
82 } else {
83 QDBusPlatformMenuItem *item = new QDBusPlatformMenuItem;
84 updateMenuItem(item, menu);
85 m_menuItems.insert(akey: tag, avalue: item);
86 return item;
87 }
88}
89
90void QDBusMenuBar::updateMenuItem(QDBusPlatformMenuItem *item, QPlatformMenu *menu)
91{
92 const QDBusPlatformMenu *ourMenu = qobject_cast<const QDBusPlatformMenu *>(object: menu);
93 item->setText(ourMenu->text());
94 item->setIcon(ourMenu->icon());
95 item->setEnabled(ourMenu->isEnabled());
96 item->setVisible(ourMenu->isVisible());
97 item->setMenu(menu);
98}
99
100void QDBusMenuBar::insertMenu(QPlatformMenu *menu, QPlatformMenu *before)
101{
102 QDBusPlatformMenuItem *menuItem = menuItemForMenu(menu);
103 QDBusPlatformMenuItem *beforeItem = menuItemForMenu(menu: before);
104 m_menu->insertMenuItem(menuItem, before: beforeItem);
105 m_menu->emitUpdated();
106}
107
108void QDBusMenuBar::removeMenu(QPlatformMenu *menu)
109{
110 QDBusPlatformMenuItem *menuItem = menuItemForMenu(menu);
111 m_menu->removeMenuItem(menuItem);
112 m_menu->emitUpdated();
113}
114
115void QDBusMenuBar::syncMenu(QPlatformMenu *menu)
116{
117 QDBusPlatformMenuItem *menuItem = menuItemForMenu(menu);
118 updateMenuItem(item: menuItem, menu);
119}
120
121void QDBusMenuBar::handleReparent(QWindow *newParentWindow)
122{
123 if (newParentWindow) {
124 unregisterMenuBar();
125 m_windowId = newParentWindow->winId();
126 registerMenuBar();
127 }
128}
129
130QPlatformMenu *QDBusMenuBar::menuForTag(quintptr tag) const
131{
132 QDBusPlatformMenuItem *menuItem = m_menuItems.value(akey: tag);
133 if (menuItem)
134 return const_cast<QPlatformMenu *>(menuItem->menu());
135 return nullptr;
136}
137
138QPlatformMenu *QDBusMenuBar::createMenu() const
139{
140 return new QDBusPlatformMenu;
141}
142
143void QDBusMenuBar::registerMenuBar()
144{
145 static uint menuBarId = 0;
146
147 QDBusConnection connection = QDBusConnection::sessionBus();
148 m_objectPath = QStringLiteral("/MenuBar/%1").arg(a: ++menuBarId);
149 if (!connection.registerObject(path: m_objectPath, object: m_menu))
150 return;
151
152 QDBusMenuRegistrarInterface registrar(REGISTRAR_SERVICE, REGISTRAR_PATH, connection, this);
153 QDBusPendingReply<> r = registrar.RegisterWindow(windowId: m_windowId, menuObjectPath: QDBusObjectPath(m_objectPath));
154 r.waitForFinished();
155 if (r.isError()) {
156 qWarning(msg: "Failed to register window menu, reason: %s (\"%s\")",
157 qUtf8Printable(r.error().name()), qUtf8Printable(r.error().message()));
158 connection.unregisterObject(path: m_objectPath);
159 }
160}
161
162void QDBusMenuBar::unregisterMenuBar()
163{
164 QDBusConnection connection = QDBusConnection::sessionBus();
165
166 if (m_windowId) {
167 QDBusMenuRegistrarInterface registrar(REGISTRAR_SERVICE, REGISTRAR_PATH, connection, this);
168 QDBusPendingReply<> r = registrar.UnregisterWindow(windowId: m_windowId);
169 r.waitForFinished();
170 if (r.isError())
171 qWarning(msg: "Failed to unregister window menu, reason: %s (\"%s\")",
172 qUtf8Printable(r.error().name()), qUtf8Printable(r.error().message()));
173 }
174
175 if (!m_objectPath.isEmpty())
176 connection.unregisterObject(path: m_objectPath);
177}
178
179QT_END_NAMESPACE
180

source code of qtbase/src/platformsupport/themes/genericunix/dbusmenu/qdbusmenubar.cpp