homescreen/src/main.cpp

   1 /*
   2  * Copyright (C) 2016, 2017 Mentor Graphics Development (Deutschland) GmbH
   3  * Copyright (c) 2017, 2018 TOYOTA MOTOR CORPORATION
   4  * Copyright (c) 2020 Collabora, Ltd.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *      http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19 #include <QGuiApplication>
  20 #include <QCommandLineParser>
  21 #include <QtCore/QUrlQuery>
  22 #include <QtGui/QGuiApplication>
  23 #include <QtQml/QQmlApplicationEngine>
  24 #include <QtQml/QQmlContext>
  25 #include <QtQml/QQmlComponent>
  26 #include <QtQml/qqml.h>
  27 #include <QQuickWindow>
  28 #include <QTimer>
  29
  30 #include <weather.h>
  31 #include <bluetooth.h>
  32 #include "applicationlauncher.h"
  33 #include "statusbarmodel.h"
  34 #include "mastervolume.h"
  35 #include "homescreenhandler.h"
  36 #include "hmi-debug.h"
  37 #include "chromecontroller.h"
  38
  39 #include <qpa/qplatformnativeinterface.h>
  40 #include <wayland-client.h>
  41
  42 #include "wayland-agl-shell-client-protocol.h"
  43 #include "wayland-agl-shell-desktop-client-protocol.h"
  44 #include "shell.h"
  45
  46 struct shell_container {
  47         struct agl_shell *agl_shell;
  48         struct agl_shell_desktop *agl_shell_desktop;
  49         // used to propagate events from C/C++ event handlers from the protocol
  50         // to the QML in case we need them
  51         Shell *a_shell;
  52         ApplicationLauncher *launcher;
  53 };
  54
  55 static void
  56 application_id_event(void *data, struct agl_shell_desktop *agl_shell_desktop,
  57                      const char *app_id)
  58 {
  59
  60 }
  61
  62 static void
  63 application_state_event(void *data, struct agl_shell_desktop *agl_shell_desktop,
  64                         const char *app_id, const char *app_data,
  65                         uint32_t app_state, uint32_t app_role)
  66 {
  67         struct shell_container *sc = static_cast<struct shell_container *>(data);
  68
  69         qDebug() << "app_id " << app_id << " app_data " << app_data
  70                 << " app_state " << app_state << " app_role " << app_role;
  71 }
  72
  73 static const struct agl_shell_desktop_listener agl_shell_desktop_listener = {
  74         application_id_event,
  75         application_state_event,
  76 };
  77
  78
  79 static void
  80 global_add(void *data, struct wl_registry *reg, uint32_t name,
  81            const char *interface, uint32_t version)
  82 {
  83         struct shell_container *sc = static_cast<struct shell_container *>(data);
  84
  85         if (strcmp(interface, agl_shell_interface.name) == 0) {
  86                 sc->agl_shell = static_cast<struct agl_shell *>(
  87                         wl_registry_bind(reg, name, &agl_shell_interface, 1)
  88                 );
  89         } else if (strcmp(interface, agl_shell_desktop_interface.name) == 0) {
  90                 sc->agl_shell_desktop = static_cast<struct agl_shell_desktop *>(
  91                         wl_registry_bind(reg, name, &agl_shell_desktop_interface, 1)
  92                 );
  93
  94                 agl_shell_desktop_add_listener(sc->agl_shell_desktop,
  95                                                &agl_shell_desktop_listener, sc);
  96         }
  97 }
  98
  99 static void
 100 global_remove(void *data, struct wl_registry *reg, uint32_t id)
 101 {
 102         /* Don't care */
 103         (void) data;
 104         (void) reg;
 105         (void) id;
 106 }
 107
 108 static const struct wl_registry_listener registry_listener = {
 109         global_add,
 110         global_remove,
 111 };
 112
 113 static struct wl_surface *
 114 getWlSurface(QPlatformNativeInterface *native, QWindow *window)
 115 {
 116         void *surf = native->nativeResourceForWindow("surface", window);
 117         return static_cast<struct ::wl_surface *>(surf);
 118 }
 119
 120 static struct wl_output *
 121 getWlOutput(QPlatformNativeInterface *native, QScreen *screen)
 122 {
 123         void *output = native->nativeResourceForScreen("output", screen);
 124         return static_cast<struct ::wl_output*>(output);
 125 }
 126
 127
 128 static struct shell_container *
 129 register_agl_shell(QPlatformNativeInterface *native)
 130 {
 131         struct wl_display *wl;
 132         struct wl_registry *registry;
 133         struct shell_container *sc = new shell_container();
 134
 135         wl = static_cast<struct wl_display *>(
 136                         native->nativeResourceForIntegration("display")
 137         );
 138         registry = wl_display_get_registry(wl);
 139
 140         wl_registry_add_listener(registry, &registry_listener, sc);
 141
 142         /* Roundtrip to get all globals advertised by the compositor */
 143         wl_display_roundtrip(wl);
 144         wl_registry_destroy(registry);
 145
 146         if (!sc->agl_shell) {
 147                 delete sc;
 148         }
 149
 150         if (!sc->agl_shell_desktop) {
 151                 delete sc;
 152         }
 153
 154         return sc;
 155 }
 156
 157 static struct wl_surface *
 158 create_component(QPlatformNativeInterface *native, QQmlComponent *comp,
 159                  QScreen *screen, QObject **qobj)
 160 {
 161         QObject *obj = comp->create();
 162         obj->setParent(screen);
 163
 164         QWindow *win = qobject_cast<QWindow *>(obj);
 165         *qobj = obj;
 166
 167         return getWlSurface(native, win);
 168 }
 169
 170 static QScreen *
 171 find_screen(const char *screen_name)
 172 {
 173         QList<QScreen *> screens = qApp->screens();
 174         QScreen *found = nullptr;
 175         QString qstr_name = QString::fromUtf8(screen_name, -1);
 176
 177         for (QScreen *xscreen : screens) {
 178                 if (qstr_name == xscreen->name()) {
 179                         found = xscreen;
 180                         break;
 181                 }
 182         }
 183
 184         return found;
 185 }
 186
 187 static void
 188 load_agl_shell_app(QPlatformNativeInterface *native,
 189                    QQmlApplicationEngine *engine,
 190                    struct shell_container *sc, QUrl &bindingAddress,
 191                    const char *screen_name)
 192 {
 193         struct wl_surface *bg, *top, *bottom;
 194         struct wl_output *output;
 195         QObject *qobj_bg, *qobj_top, *qobj_bottom;
 196         QScreen *screen = nullptr;
 197         struct agl_shell *agl_shell = sc->agl_shell;
 198
 199         QQmlComponent bg_comp(engine, QUrl("qrc:/background.qml"));
 200         qInfo() << bg_comp.errors();
 201
 202         QQmlComponent top_comp(engine, QUrl("qrc:/toppanel.qml"));
 203         qInfo() << top_comp.errors();
 204
 205         QQmlComponent bot_comp(engine, QUrl("qrc:/bottompanel.qml"));
 206         qInfo() << bot_comp.errors();
 207
 208         if (!screen_name)
 209                 screen = qApp->primaryScreen();
 210         else
 211                 screen = find_screen(screen_name);
 212
 213         qDebug() << "found primary screen " << qApp->primaryScreen()->name() <<
 214                 "first screen " << qApp->screens().first()->name();
 215         output = getWlOutput(native, screen);
 216
 217         top = create_component(native, &top_comp, screen, &qobj_top);
 218         bottom = create_component(native, &bot_comp, screen, &qobj_bottom);
 219         bg = create_component(native, &bg_comp, screen, &qobj_bg);
 220
 221         /* engine.rootObjects() works only if we had a load() */
 222         StatusBarModel *statusBar = qobj_top->findChild<StatusBarModel *>("statusBar");
 223         if (statusBar) {
 224                 qDebug() << "got statusBar objectname, doing init()";
 225                 statusBar->init(bindingAddress, engine->rootContext());
 226         }
 227
 228         agl_shell_set_panel(agl_shell, top, output, AGL_SHELL_EDGE_TOP);
 229         agl_shell_set_panel(agl_shell, bottom, output, AGL_SHELL_EDGE_BOTTOM);
 230         qDebug() << "Setting homescreen to screen  " << screen->name();
 231
 232         agl_shell_set_background(agl_shell, bg, output);
 233
 234         /* Delay the ready signal until after Qt has done all of its own setup
 235          * in a.exec() */
 236         QTimer::singleShot(500, [agl_shell](){
 237                 agl_shell_ready(agl_shell);
 238         });
 239 }
 240
 241 int main(int argc, char *argv[])
 242 {
 243     setenv("QT_QPA_PLATFORM", "wayland", 1);
 244     QGuiApplication a(argc, argv);
 245     const char *screen_name;
 246     int ret;
 247
 248     QPlatformNativeInterface *native = qApp->platformNativeInterface();
 249     struct shell_container *sc = nullptr;
 250     screen_name = getenv("HOMESCREEN_START_SCREEN");
 251
 252     QCoreApplication::setOrganizationDomain("LinuxFoundation");
 253     QCoreApplication::setOrganizationName("AutomotiveGradeLinux");
 254     QCoreApplication::setApplicationName("HomeScreen");
 255     QCoreApplication::setApplicationVersion("0.7.0");
 256     /* we need to have an app_id */
 257     a.setDesktopFileName("homescreen");
 258
 259     QCommandLineParser parser;
 260     parser.addPositionalArgument("port", a.translate("main", "port for binding"));
 261     parser.addPositionalArgument("secret", a.translate("main", "secret for binding"));
 262     parser.addHelpOption();
 263     parser.addVersionOption();
 264     parser.process(a);
 265     QStringList positionalArguments = parser.positionalArguments();
 266
 267     int port = 1700;
 268     QString token = "wm";
 269     QString graphic_role = "homescreen"; // defined in layers.json in Window Manager
 270
 271     if (positionalArguments.length() == 2) {
 272         port = positionalArguments.takeFirst().toInt();
 273         token = positionalArguments.takeFirst();
 274     }
 275
 276     HMI_DEBUG("HomeScreen","port = %d, token = %s", port, token.toStdString().c_str());
 277     ApplicationLauncher *launcher = new ApplicationLauncher();
 278
 279     sc = register_agl_shell(native);
 280     if (!sc) {
 281             exit(EXIT_FAILURE);
 282     }
 283
 284     std::shared_ptr<struct agl_shell>
 285             shell{sc->agl_shell, agl_shell_destroy};
 286     std::shared_ptr<struct agl_shell_desktop>
 287             shell_desktop{sc->agl_shell_desktop, agl_shell_desktop_destroy};
 288     Shell *aglShell = new Shell(shell, shell_desktop, &a);
 289     sc->a_shell = aglShell;
 290     sc->launcher = launcher;
 291
 292     // import C++ class to QML
 293     // qmlRegisterType<ApplicationLauncher>("HomeScreen", 1, 0, "ApplicationLauncher");
 294     qmlRegisterType<StatusBarModel>("HomeScreen", 1, 0, "StatusBarModel");
 295     qmlRegisterType<MasterVolume>("MasterVolume", 1, 0, "MasterVolume");
 296     qmlRegisterUncreatableType<ChromeController>("SpeechChrome", 1, 0, "SpeechChromeController",
 297                                                  QLatin1String("SpeechChromeController is uncreatable."));
 298
 299
 300     HomescreenHandler* homescreenHandler = new HomescreenHandler(aglShell);
 301     homescreenHandler->init(port, token.toStdString().c_str());
 302
 303     QUrl bindingAddress;
 304     bindingAddress.setScheme(QStringLiteral("ws"));
 305     bindingAddress.setHost(QStringLiteral("localhost"));
 306     bindingAddress.setPort(port);
 307     bindingAddress.setPath(QStringLiteral("/api"));
 308
 309     QUrlQuery query;
 310     query.addQueryItem(QStringLiteral("token"), token);
 311     bindingAddress.setQuery(query);
 312
 313     QQmlApplicationEngine engine;
 314     QQmlContext *context = engine.rootContext();
 315     context->setContextProperty("bindingAddress", bindingAddress);
 316
 317     context->setContextProperty("homescreenHandler", homescreenHandler);
 318     context->setContextProperty("launcher", launcher);
 319     context->setContextProperty("weather", new Weather(bindingAddress));
 320     context->setContextProperty("bluetooth", new Bluetooth(bindingAddress, context));
 321     context->setContextProperty("speechChromeController", new ChromeController(bindingAddress, &engine));
 322     // we add it here even if we don't use it
 323     context->setContextProperty("shell", aglShell);
 324
 325     /* instead of loading main.qml we load one-by-one each of the QMLs,
 326      * divided now between several surfaces: panels, background.
 327      */
 328     load_agl_shell_app(native, &engine, sc, bindingAddress, screen_name);
 329
 330     ret = a.exec();
 331
 332     delete sc;
 333     return ret;
 334 }