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 "wayland-agl-shell-desktop-client-protocol.h"
  44 #include "shell.h"
  45
  46 struct shell_data {
  47         struct agl_shell *shell;
  48         struct agl_shell_desktop *shell_desktop;
  49 };
  50
  51 static void
  52 agl_shell_desktop_application(void *data,
  53                               struct agl_shell_desktop *agl_shell_desktop,
  54                               const char *app_id)
  55 {
  56         HomescreenHandler *homescreenHandler = static_cast<HomescreenHandler *>(data);
  57
  58         if (homescreenHandler)
  59                 homescreenHandler->addAppToStack(app_id);
  60 }
  61
  62 static void
  63 agl_shell_desktop_state_app(void *data,
  64                             struct agl_shell_desktop *agl_shell_desktop,
  65                             const char *app_id,
  66                             const char *app_data,
  67                             uint32_t state,
  68                             uint32_t role)
  69 {
  70         HomescreenHandler *homescreenHandler = static_cast<HomescreenHandler *>(data);
  71
  72         if (homescreenHandler && state == AGL_SHELL_DESKTOP_APP_STATE_DESTROYED)
  73                 homescreenHandler->appTerminated(app_id);
  74 }
  75
  76 static const struct agl_shell_desktop_listener shell_desktop_listener = {
  77    agl_shell_desktop_application,
  78    agl_shell_desktop_state_app
  79 };
  80
  81 static void
  82 global_add(void *data, struct wl_registry *reg, uint32_t name,
  83            const char *interface, uint32_t)
  84 {
  85         struct shell_data *shell_data = static_cast<struct shell_data *>(data);
  86
  87         if (!shell_data)
  88                 return;
  89
  90         if (strcmp(interface, agl_shell_interface.name) == 0) {
  91                 shell_data->shell = static_cast<struct agl_shell *>(
  92                         wl_registry_bind(reg, name, &agl_shell_interface, 1)
  93                 );
  94         }
  95
  96         if (strcmp(interface, agl_shell_desktop_interface.name) == 0) {
  97                 shell_data->shell_desktop = static_cast<struct agl_shell_desktop *>(
  98                         wl_registry_bind(reg, name, &agl_shell_desktop_interface, 1)
  99                 );
 100         }
 101 }
 102
 103 static void
 104 global_remove(void *data, struct wl_registry *reg, uint32_t id)
 105 {
 106         /* Don't care */
 107         (void) data;
 108         (void) reg;
 109         (void) id;
 110 }
 111
 112 static const struct wl_registry_listener registry_listener = {
 113         global_add,
 114         global_remove,
 115 };
 116
 117 static struct wl_surface *
 118 getWlSurface(QPlatformNativeInterface *native, QWindow *window)
 119 {
 120         void *surf = native->nativeResourceForWindow("surface", window);
 121         return static_cast<struct ::wl_surface *>(surf);
 122 }
 123
 124 static struct wl_output *
 125 getWlOutput(QPlatformNativeInterface *native, QScreen *screen)
 126 {
 127         void *output = native->nativeResourceForScreen("output", screen);
 128         return static_cast<struct ::wl_output*>(output);
 129 }
 130
 131
 132 static void
 133 register_agl_shell(QPlatformNativeInterface *native, struct shell_data *shell_data)
 134 {
 135         struct wl_display *wl;
 136         struct wl_registry *registry;
 137
 138         wl = static_cast<struct wl_display *>(
 139                         native->nativeResourceForIntegration("display")
 140         );
 141         registry = wl_display_get_registry(wl);
 142
 143         wl_registry_add_listener(registry, &registry_listener, shell_data);
 144
 145         /* Roundtrip to get all globals advertised by the compositor */
 146         wl_display_roundtrip(wl);
 147         wl_registry_destroy(registry);
 148 }
 149
 150 static struct wl_surface *
 151 create_component(QPlatformNativeInterface *native, QQmlComponent *comp,
 152                  QScreen *screen, QObject **qobj)
 153 {
 154         QObject *obj = comp->create();
 155         obj->setParent(screen);
 156
 157         QWindow *win = qobject_cast<QWindow *>(obj);
 158         *qobj = obj;
 159
 160         return getWlSurface(native, win);
 161 }
 162
 163 static QScreen *
 164 find_screen(const char *screen_name)
 165 {
 166         QList<QScreen *> screens = qApp->screens();
 167         QScreen *found = nullptr;
 168         QString qstr_name = QString::fromUtf8(screen_name, -1);
 169
 170         for (QScreen *xscreen : screens) {
 171                 if (qstr_name == xscreen->name()) {
 172                         found = xscreen;
 173                         break;
 174                 }
 175         }
 176
 177         return found;
 178 }
 179
 180 static void
 181 load_agl_shell_app(QPlatformNativeInterface *native,
 182                    QQmlApplicationEngine *engine,
 183                    struct agl_shell *agl_shell,
 184                    const char *screen_name,
 185                     bool is_demo)
 186 {
 187         struct wl_surface *bg, *top, *bottom;
 188         struct wl_output *output;
 189         QObject *qobj_bg, *qobj_top, *qobj_bottom;
 190         QScreen *screen = nullptr;
 191
 192         if (is_demo) {
 193                 QQmlComponent bg_comp(engine, QUrl("qrc:/background_demo.qml"));
 194                 qInfo() << bg_comp.errors();
 195
 196                 QQmlComponent top_comp(engine, QUrl("qrc:/toppanel_demo.qml"));
 197                 qInfo() << top_comp.errors();
 198
 199                 QQmlComponent bot_comp(engine, QUrl("qrc:/bottompanel_demo.qml"));
 200                 qInfo() << bot_comp.errors();
 201
 202                 top = create_component(native, &top_comp, screen, &qobj_top);
 203                 bottom = create_component(native, &bot_comp, screen, &qobj_bottom);
 204                 bg = create_component(native, &bg_comp, screen, &qobj_bg);
 205         } else {
 206                 QQmlComponent bg_comp(engine, QUrl("qrc:/background.qml"));
 207                 qInfo() << bg_comp.errors();
 208
 209                 QQmlComponent top_comp(engine, QUrl("qrc:/toppanel.qml"));
 210                 qInfo() << top_comp.errors();
 211
 212                 QQmlComponent bot_comp(engine, QUrl("qrc:/bottompanel.qml"));
 213                 qInfo() << bot_comp.errors();
 214
 215                 top = create_component(native, &top_comp, screen, &qobj_top);
 216                 bottom = create_component(native, &bot_comp, screen, &qobj_bottom);
 217                 bg = create_component(native, &bg_comp, screen, &qobj_bg);
 218         }
 219
 220         if (!screen_name)
 221                 screen = qApp->primaryScreen();
 222         else
 223                 screen = find_screen(screen_name);
 224
 225         qDebug() << "found primary screen " << qApp->primaryScreen()->name() <<
 226                 "first screen " << qApp->screens().first()->name();
 227         output = getWlOutput(native, screen);
 228
 229         /* engine.rootObjects() works only if we had a load() */
 230         StatusBarModel *statusBar = qobj_top->findChild<StatusBarModel *>("statusBar");
 231         if (statusBar) {
 232                 qDebug() << "got statusBar objectname, doing init()";
 233                 statusBar->init(engine->rootContext());
 234         }
 235
 236         agl_shell_set_panel(agl_shell, top, output, AGL_SHELL_EDGE_TOP);
 237         agl_shell_set_panel(agl_shell, bottom, output, AGL_SHELL_EDGE_BOTTOM);
 238         qDebug() << "Setting homescreen to screen  " << screen->name();
 239
 240         agl_shell_set_background(agl_shell, bg, output);
 241
 242         /* Delay the ready signal until after Qt has done all of its own setup
 243          * in a.exec() */
 244         QTimer::singleShot(500, [agl_shell](){
 245                 agl_shell_ready(agl_shell);
 246         });
 247 }
 248
 249 int main(int argc, char *argv[])
 250 {
 251     setenv("QT_QPA_PLATFORM", "wayland", 1);
 252     QGuiApplication a(argc, argv);
 253     const char *screen_name;
 254     bool is_demo_val = false;
 255     struct shell_data shell_data = { nullptr, nullptr };
 256
 257     QPlatformNativeInterface *native = qApp->platformNativeInterface();
 258     screen_name = getenv("HOMESCREEN_START_SCREEN");
 259
 260     const char *is_demo = getenv("HOMESCREEN_DEMO_CI");
 261     if (is_demo && strcmp(is_demo, "1") == 0)
 262         is_demo_val = true;
 263
 264     QCoreApplication::setOrganizationDomain("LinuxFoundation");
 265     QCoreApplication::setOrganizationName("AutomotiveGradeLinux");
 266     QCoreApplication::setApplicationName("HomeScreen");
 267     QCoreApplication::setApplicationVersion("0.7.0");
 268     /* we need to have an app_id */
 269     a.setDesktopFileName("homescreen");
 270
 271     register_agl_shell(native, &shell_data);
 272     if (!shell_data.shell) {
 273         fprintf(stderr, "agl_shell extension is not advertised. "
 274                 "Are you sure that agl-compositor is running?\n");
 275         exit(EXIT_FAILURE);
 276     }
 277     if (!shell_data.shell_desktop) {
 278         fprintf(stderr, "agl_shell_desktop extension is not advertised. "
 279                 "Are you sure that agl-compositor is running?\n");
 280         exit(EXIT_FAILURE);
 281     }
 282
 283     std::shared_ptr<struct agl_shell> agl_shell{shell_data.shell, agl_shell_destroy};
 284     Shell *aglShell = new Shell(agl_shell, &a);
 285
 286     // import C++ class to QML
 287     qmlRegisterType<StatusBarModel>("HomeScreen", 1, 0, "StatusBarModel");
 288     qmlRegisterType<MasterVolume>("MasterVolume", 1, 0, "MasterVolume");
 289
 290     ApplicationLauncher *launcher = new ApplicationLauncher();
 291     launcher->setCurrent(QStringLiteral("launcher"));
 292     HomescreenHandler* homescreenHandler = new HomescreenHandler(aglShell, launcher);
 293     homescreenHandler->init();
 294
 295     agl_shell_desktop_add_listener(shell_data.shell_desktop, &shell_desktop_listener, homescreenHandler);
 296
 297     QQmlApplicationEngine engine;
 298     QQmlContext *context = engine.rootContext();
 299
 300     context->setContextProperty("homescreenHandler", homescreenHandler);
 301     context->setContextProperty("launcher", launcher);
 302 #if 0
 303     context->setContextProperty("weather", new Weather(bindingAddress));
 304     context->setContextProperty("bluetooth", new Bluetooth(bindingAddress, context));
 305 #endif
 306     // we add it here even if we don't use it
 307     context->setContextProperty("shell", aglShell);
 308
 309     /* instead of loading main.qml we load one-by-one each of the QMLs,
 310      * divided now between several surfaces: panels, background.
 311      */
 312     load_agl_shell_app(native, &engine, shell_data.shell, screen_name, is_demo_val);
 313
 314     return a.exec();
 315 }