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 #if 0
  30 #include <weather.h>
  31 #include <bluetooth.h>
  32 #endif
  33 #include "applicationlauncher.h"
  34 #include "statusbarmodel.h"
  35 #include "mastervolume.h"
  36 #include "homescreenhandler.h"
  37 #include "hmi-debug.h"
  38
  39 #include <qpa/qplatformnativeinterface.h>
  40 #include <wayland-client.h>
  41
  42 #include "wayland-agl-shell-client-protocol.h"
  43 #include "shell.h"
  44
  45 static void
  46 global_add(void *data, struct wl_registry *reg, uint32_t name,
  47            const char *interface, uint32_t)
  48 {
  49         struct agl_shell **shell = static_cast<struct agl_shell **>(data);
  50
  51         if (strcmp(interface, agl_shell_interface.name) == 0) {
  52                 *shell = static_cast<struct agl_shell *>(
  53                         wl_registry_bind(reg, name, &agl_shell_interface, 1)
  54                 );
  55         }
  56 }
  57
  58 static void
  59 global_remove(void *data, struct wl_registry *reg, uint32_t id)
  60 {
  61         /* Don't care */
  62         (void) data;
  63         (void) reg;
  64         (void) id;
  65 }
  66
  67 static const struct wl_registry_listener registry_listener = {
  68         global_add,
  69         global_remove,
  70 };
  71
  72 static struct wl_surface *
  73 getWlSurface(QPlatformNativeInterface *native, QWindow *window)
  74 {
  75         void *surf = native->nativeResourceForWindow("surface", window);
  76         return static_cast<struct ::wl_surface *>(surf);
  77 }
  78
  79 static struct wl_output *
  80 getWlOutput(QPlatformNativeInterface *native, QScreen *screen)
  81 {
  82         void *output = native->nativeResourceForScreen("output", screen);
  83         return static_cast<struct ::wl_output*>(output);
  84 }
  85
  86
  87 static struct agl_shell *
  88 register_agl_shell(QPlatformNativeInterface *native)
  89 {
  90         struct wl_display *wl;
  91         struct wl_registry *registry;
  92         struct agl_shell *shell = nullptr;
  93
  94         wl = static_cast<struct wl_display *>(
  95                         native->nativeResourceForIntegration("display")
  96         );
  97         registry = wl_display_get_registry(wl);
  98
  99         wl_registry_add_listener(registry, &registry_listener, &shell);
 100
 101         /* Roundtrip to get all globals advertised by the compositor */
 102         wl_display_roundtrip(wl);
 103         wl_registry_destroy(registry);
 104
 105         return shell;
 106 }
 107
 108 static struct wl_surface *
 109 create_component(QPlatformNativeInterface *native, QQmlComponent *comp,
 110                  QScreen *screen, QObject **qobj)
 111 {
 112         QObject *obj = comp->create();
 113         obj->setParent(screen);
 114
 115         QWindow *win = qobject_cast<QWindow *>(obj);
 116         *qobj = obj;
 117
 118         return getWlSurface(native, win);
 119 }
 120
 121 static QScreen *
 122 find_screen(const char *screen_name)
 123 {
 124         QList<QScreen *> screens = qApp->screens();
 125         QScreen *found = nullptr;
 126         QString qstr_name = QString::fromUtf8(screen_name, -1);
 127
 128         for (QScreen *xscreen : screens) {
 129                 if (qstr_name == xscreen->name()) {
 130                         found = xscreen;
 131                         break;
 132                 }
 133         }
 134
 135         return found;
 136 }
 137
 138 static void
 139 load_agl_shell_app(QPlatformNativeInterface *native,
 140                    QQmlApplicationEngine *engine,
 141                    struct agl_shell *agl_shell,
 142                    const char *screen_name,
 143                     bool is_demo)
 144 {
 145         struct wl_surface *bg, *top, *bottom;
 146         struct wl_output *output;
 147         QObject *qobj_bg, *qobj_top, *qobj_bottom;
 148         QScreen *screen = nullptr;
 149
 150         if (is_demo) {
 151                 QQmlComponent bg_comp(engine, QUrl("qrc:/background_demo.qml"));
 152                 qInfo() << bg_comp.errors();
 153
 154                 QQmlComponent top_comp(engine, QUrl("qrc:/toppanel_demo.qml"));
 155                 qInfo() << top_comp.errors();
 156
 157                 QQmlComponent bot_comp(engine, QUrl("qrc:/bottompanel_demo.qml"));
 158                 qInfo() << bot_comp.errors();
 159
 160                 top = create_component(native, &top_comp, screen, &qobj_top);
 161                 bottom = create_component(native, &bot_comp, screen, &qobj_bottom);
 162                 bg = create_component(native, &bg_comp, screen, &qobj_bg);
 163         } else {
 164                 QQmlComponent bg_comp(engine, QUrl("qrc:/background.qml"));
 165                 qInfo() << bg_comp.errors();
 166
 167                 QQmlComponent top_comp(engine, QUrl("qrc:/toppanel.qml"));
 168                 qInfo() << top_comp.errors();
 169
 170                 QQmlComponent bot_comp(engine, QUrl("qrc:/bottompanel.qml"));
 171                 qInfo() << bot_comp.errors();
 172
 173                 top = create_component(native, &top_comp, screen, &qobj_top);
 174                 bottom = create_component(native, &bot_comp, screen, &qobj_bottom);
 175                 bg = create_component(native, &bg_comp, screen, &qobj_bg);
 176         }
 177
 178         if (!screen_name)
 179                 screen = qApp->primaryScreen();
 180         else
 181                 screen = find_screen(screen_name);
 182
 183         qDebug() << "found primary screen " << qApp->primaryScreen()->name() <<
 184                 "first screen " << qApp->screens().first()->name();
 185         output = getWlOutput(native, screen);
 186
 187         /* engine.rootObjects() works only if we had a load() */
 188         StatusBarModel *statusBar = qobj_top->findChild<StatusBarModel *>("statusBar");
 189         if (statusBar) {
 190                 qDebug() << "got statusBar objectname, doing init()";
 191                 statusBar->init(engine->rootContext());
 192         }
 193
 194         agl_shell_set_panel(agl_shell, top, output, AGL_SHELL_EDGE_TOP);
 195         agl_shell_set_panel(agl_shell, bottom, output, AGL_SHELL_EDGE_BOTTOM);
 196         qDebug() << "Setting homescreen to screen  " << screen->name();
 197
 198         agl_shell_set_background(agl_shell, bg, output);
 199
 200         /* Delay the ready signal until after Qt has done all of its own setup
 201          * in a.exec() */
 202         QTimer::singleShot(500, [agl_shell](){
 203                 agl_shell_ready(agl_shell);
 204         });
 205 }
 206
 207 int main(int argc, char *argv[])
 208 {
 209     setenv("QT_QPA_PLATFORM", "wayland", 1);
 210     QGuiApplication a(argc, argv);
 211     const char *screen_name;
 212     bool is_demo_val = false;
 213
 214     QPlatformNativeInterface *native = qApp->platformNativeInterface();
 215     struct agl_shell *agl_shell = nullptr;
 216     screen_name = getenv("HOMESCREEN_START_SCREEN");
 217
 218     const char *is_demo = getenv("HOMESCREEN_DEMO_CI");
 219     if (is_demo && strcmp(is_demo, "1") == 0)
 220             is_demo_val = true;
 221
 222     QCoreApplication::setOrganizationDomain("LinuxFoundation");
 223     QCoreApplication::setOrganizationName("AutomotiveGradeLinux");
 224     QCoreApplication::setApplicationName("HomeScreen");
 225     QCoreApplication::setApplicationVersion("0.7.0");
 226     /* we need to have an app_id */
 227     a.setDesktopFileName("homescreen");
 228
 229     agl_shell = register_agl_shell(native);
 230     if (!agl_shell) {
 231             fprintf(stderr, "agl_shell extension is not advertised. "
 232                             "Are you sure that agl-compositor is running?\n");
 233             exit(EXIT_FAILURE);
 234     }
 235
 236     std::shared_ptr<struct agl_shell> shell{agl_shell, agl_shell_destroy};
 237     Shell *aglShell = new Shell(shell, &a);
 238
 239     // import C++ class to QML
 240     qmlRegisterType<StatusBarModel>("HomeScreen", 1, 0, "StatusBarModel");
 241     qmlRegisterType<MasterVolume>("MasterVolume", 1, 0, "MasterVolume");
 242
 243     ApplicationLauncher *launcher = new ApplicationLauncher();
 244     launcher->setCurrent(QStringLiteral("launcher"));
 245     HomescreenHandler* homescreenHandler = new HomescreenHandler(aglShell, launcher);
 246     homescreenHandler->init();
 247
 248     QQmlApplicationEngine engine;
 249     QQmlContext *context = engine.rootContext();
 250
 251     context->setContextProperty("homescreenHandler", homescreenHandler);
 252     context->setContextProperty("launcher", launcher);
 253 #if 0
 254     context->setContextProperty("weather", new Weather(bindingAddress));
 255     context->setContextProperty("bluetooth", new Bluetooth(bindingAddress, context));
 256 #endif
 257     // we add it here even if we don't use it
 258     context->setContextProperty("shell", aglShell);
 259
 260     /* instead of loading main.qml we load one-by-one each of the QMLs,
 261      * divided now between several surfaces: panels, background.
 262      */
 263     load_agl_shell_app(native, &engine, agl_shell, screen_name, is_demo_val);
 264
 265     return a.exec();
 266 }