homescreen/src/main.cpp

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