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
  32 #include "applicationlauncher.h"
  33 #include "statusbarmodel.h"
  34 #include "mastervolume.h"
  35 #include "homescreenhandler.h"
  36 #include "hmi-debug.h"
  37
  38 #include <qpa/qplatformnativeinterface.h>
  39 #include <wayland-client.h>
  40
  41 #include "wayland-agl-shell-client-protocol.h"
  42 #include "wayland-agl-shell-desktop-client-protocol.h"
  43 #include "shell.h"
  44
  45 struct shell_data {
  46         struct agl_shell *shell;
  47         struct agl_shell_desktop *shell_desktop;
  48
  49         bool wait_for_bound;
  50         bool bound_ok;
  51 };
  52
  53 static void
  54 agl_shell_desktop_application(void *data,
  55                               struct agl_shell_desktop *agl_shell_desktop,
  56                               const char *app_id)
  57 {
  58         HomescreenHandler *homescreenHandler = static_cast<HomescreenHandler *>(data);
  59
  60         if (homescreenHandler)
  61                 homescreenHandler->addAppToStack(app_id);
  62 }
  63
  64 static void
  65 agl_shell_desktop_state_app(void *data,
  66                             struct agl_shell_desktop *agl_shell_desktop,
  67                             const char *app_id,
  68                             const char *app_data,
  69                             uint32_t state,
  70                             uint32_t role)
  71 {
  72         HomescreenHandler *homescreenHandler = static_cast<HomescreenHandler *>(data);
  73
  74         if (homescreenHandler && state == AGL_SHELL_DESKTOP_APP_STATE_DESTROYED)
  75                 homescreenHandler->appTerminated(app_id);
  76 }
  77
  78 static void
  79 agl_shell_bound_ok(void *data, struct agl_shell *agl_shell)
  80 {
  81         struct shell_data *shell_data = static_cast<struct shell_data *>(data);
  82         shell_data->wait_for_bound = false;
  83
  84         shell_data->bound_ok = true;
  85 }
  86
  87 static void
  88 agl_shell_bound_fail(void *data, struct agl_shell *agl_shell)
  89 {
  90         struct shell_data *shell_data = static_cast<struct shell_data *>(data);
  91         shell_data->wait_for_bound = false;
  92
  93         shell_data->bound_ok = false;
  94 }
  95
  96 static const struct agl_shell_listener shell_listener = {
  97    agl_shell_bound_ok,
  98    agl_shell_bound_fail,
  99 };
 100
 101 static const struct agl_shell_desktop_listener shell_desktop_listener = {
 102    agl_shell_desktop_application,
 103    agl_shell_desktop_state_app
 104 };
 105
 106 static void
 107 global_add(void *data, struct wl_registry *reg, uint32_t name,
 108            const char *interface, uint32_t ver)
 109 {
 110         struct shell_data *shell_data = static_cast<struct shell_data *>(data);
 111
 112         if (!shell_data)
 113                 return;
 114
 115         if (strcmp(interface, agl_shell_interface.name) == 0) {
 116                 shell_data->shell = static_cast<struct agl_shell *>(
 117                         wl_registry_bind(reg, name, &agl_shell_interface, 3));
 118                         agl_shell_add_listener(shell_data->shell, &shell_listener, data);
 119         }
 120
 121         if (strcmp(interface, agl_shell_desktop_interface.name) == 0) {
 122                 shell_data->shell_desktop = static_cast<struct agl_shell_desktop *>(
 123                         wl_registry_bind(reg, name, &agl_shell_desktop_interface, 1)
 124                 );
 125         }
 126 }
 127
 128 static void
 129 global_remove(void *data, struct wl_registry *reg, uint32_t id)
 130 {
 131         /* Don't care */
 132         (void) data;
 133         (void) reg;
 134         (void) id;
 135 }
 136
 137 static const struct wl_registry_listener registry_listener = {
 138         global_add,
 139         global_remove,
 140 };
 141
 142 static struct wl_surface *
 143 getWlSurface(QPlatformNativeInterface *native, QWindow *window)
 144 {
 145         void *surf = native->nativeResourceForWindow("surface", window);
 146         return static_cast<struct ::wl_surface *>(surf);
 147 }
 148
 149 static struct wl_output *
 150 getWlOutput(QPlatformNativeInterface *native, QScreen *screen)
 151 {
 152         void *output = native->nativeResourceForScreen("output", screen);
 153         return static_cast<struct ::wl_output*>(output);
 154 }
 155
 156 static struct wl_display *
 157 getWlDisplay(QPlatformNativeInterface *native)
 158 {
 159         return static_cast<struct wl_display *>(
 160                 native->nativeResourceForIntegration("display")
 161         );
 162 }
 163
 164 static void
 165 register_agl_shell(QPlatformNativeInterface *native, struct shell_data *shell_data)
 166 {
 167         struct wl_display *wl;
 168         struct wl_registry *registry;
 169
 170         wl = getWlDisplay(native);
 171         registry = wl_display_get_registry(wl);
 172
 173         wl_registry_add_listener(registry, &registry_listener, shell_data);
 174
 175         /* Roundtrip to get all globals advertised by the compositor */
 176         wl_display_roundtrip(wl);
 177         wl_registry_destroy(registry);
 178 }
 179
 180 static struct wl_surface *
 181 create_component(QPlatformNativeInterface *native, QQmlComponent *comp,
 182                  QScreen *screen, QObject **qobj)
 183 {
 184         QObject *obj = comp->create();
 185         obj->setParent(screen);
 186
 187         QWindow *win = qobject_cast<QWindow *>(obj);
 188         *qobj = obj;
 189
 190         return getWlSurface(native, win);
 191 }
 192
 193 static QScreen *
 194 find_screen(const char *screen_name)
 195 {
 196         QList<QScreen *> screens = qApp->screens();
 197         QScreen *found = nullptr;
 198         QString qstr_name = QString::fromUtf8(screen_name, -1);
 199
 200         for (QScreen *xscreen : screens) {
 201                 if (qstr_name == xscreen->name()) {
 202                         found = xscreen;
 203                         break;
 204                 }
 205         }
 206
 207         return found;
 208 }
 209
 210 static void
 211 load_agl_shell_app(QPlatformNativeInterface *native,
 212                    QQmlApplicationEngine *engine,
 213                    struct agl_shell *agl_shell,
 214                    const char *screen_name,
 215                     bool is_demo)
 216 {
 217         struct wl_surface *bg, *top, *bottom;
 218         struct wl_output *output;
 219         QObject *qobj_bg, *qobj_top, *qobj_bottom;
 220         QScreen *screen = nullptr;
 221
 222         if (is_demo) {
 223                 QQmlComponent bg_comp(engine, QUrl("qrc:/background_demo.qml"));
 224                 qInfo() << bg_comp.errors();
 225
 226                 QQmlComponent top_comp(engine, QUrl("qrc:/toppanel_demo.qml"));
 227                 qInfo() << top_comp.errors();
 228
 229                 QQmlComponent bot_comp(engine, QUrl("qrc:/bottompanel_demo.qml"));
 230                 qInfo() << bot_comp.errors();
 231
 232                 top = create_component(native, &top_comp, screen, &qobj_top);
 233                 bottom = create_component(native, &bot_comp, screen, &qobj_bottom);
 234                 bg = create_component(native, &bg_comp, screen, &qobj_bg);
 235         } else {
 236                 QQmlComponent bg_comp(engine, QUrl("qrc:/background.qml"));
 237                 qInfo() << bg_comp.errors();
 238
 239                 QQmlComponent top_comp(engine, QUrl("qrc:/toppanel.qml"));
 240                 qInfo() << top_comp.errors();
 241
 242                 QQmlComponent bot_comp(engine, QUrl("qrc:/bottompanel.qml"));
 243                 qInfo() << bot_comp.errors();
 244
 245                 top = create_component(native, &top_comp, screen, &qobj_top);
 246                 bottom = create_component(native, &bot_comp, screen, &qobj_bottom);
 247                 bg = create_component(native, &bg_comp, screen, &qobj_bg);
 248         }
 249
 250         if (!screen_name)
 251                 screen = qApp->primaryScreen();
 252         else
 253                 screen = find_screen(screen_name);
 254
 255         if (!screen) {
 256                 qDebug() << "No outputs present in the system.";
 257                 return;
 258         }
 259
 260         qDebug() << "found primary screen " << qApp->primaryScreen()->name() <<
 261                 "first screen " << qApp->screens().first()->name();
 262         output = getWlOutput(native, screen);
 263
 264         /* engine.rootObjects() works only if we had a load() */
 265         StatusBarModel *statusBar = qobj_top->findChild<StatusBarModel *>("statusBar");
 266         if (statusBar) {
 267                 qDebug() << "got statusBar objectname, doing init()";
 268                 statusBar->init(engine->rootContext());
 269         }
 270
 271         agl_shell_set_panel(agl_shell, top, output, AGL_SHELL_EDGE_TOP);
 272         agl_shell_set_panel(agl_shell, bottom, output, AGL_SHELL_EDGE_BOTTOM);
 273         qDebug() << "Setting homescreen to screen  " << screen->name();
 274
 275         agl_shell_set_background(agl_shell, bg, output);
 276
 277         /* Delay the ready signal until after Qt has done all of its own setup
 278          * in a.exec() */
 279         QTimer::singleShot(500, [agl_shell](){
 280                 agl_shell_ready(agl_shell);
 281         });
 282 }
 283
 284 int main(int argc, char *argv[])
 285 {
 286     setenv("QT_QPA_PLATFORM", "wayland", 1);
 287     setenv("QT_QUICK_CONTROLS_STYLE", "AGL", 1);
 288     QGuiApplication a(argc, argv);
 289     const char *screen_name;
 290     bool is_demo_val = false;
 291     int ret = 0;
 292     struct shell_data shell_data = { nullptr, nullptr, true, false };
 293
 294     QPlatformNativeInterface *native = qApp->platformNativeInterface();
 295     screen_name = getenv("HOMESCREEN_START_SCREEN");
 296
 297     const char *is_demo = getenv("HOMESCREEN_DEMO_CI");
 298     if (is_demo && strcmp(is_demo, "1") == 0)
 299         is_demo_val = true;
 300
 301     QCoreApplication::setOrganizationDomain("LinuxFoundation");
 302     QCoreApplication::setOrganizationName("AutomotiveGradeLinux");
 303     QCoreApplication::setApplicationName("HomeScreen");
 304     QCoreApplication::setApplicationVersion("0.7.0");
 305     /* we need to have an app_id */
 306     a.setDesktopFileName("homescreen");
 307
 308     register_agl_shell(native, &shell_data);
 309     if (!shell_data.shell) {
 310         fprintf(stderr, "agl_shell extension is not advertised. "
 311                 "Are you sure that agl-compositor is running?\n");
 312         exit(EXIT_FAILURE);
 313     }
 314     if (!shell_data.shell_desktop) {
 315         fprintf(stderr, "agl_shell_desktop extension is not advertised. "
 316                 "Are you sure that agl-compositor is running?\n");
 317         exit(EXIT_FAILURE);
 318     }
 319
 320     while (ret != -1 && shell_data.wait_for_bound) {
 321             ret = wl_display_dispatch(getWlDisplay(native));
 322
 323             if (shell_data.wait_for_bound)
 324                     continue;
 325     }
 326
 327     // verify that did bound successfully
 328     if (!shell_data.bound_ok) {
 329         fprintf(stderr, "agl_shell extension already in use by other shell client.\n");
 330         exit(EXIT_FAILURE);
 331     }
 332
 333     std::shared_ptr<struct agl_shell> agl_shell{shell_data.shell, agl_shell_destroy};
 334     Shell *aglShell = new Shell(agl_shell, &a);
 335
 336     // import C++ class to QML
 337     qmlRegisterType<StatusBarModel>("HomeScreen", 1, 0, "StatusBarModel");
 338     qmlRegisterType<MasterVolume>("MasterVolume", 1, 0, "MasterVolume");
 339
 340     ApplicationLauncher *launcher = new ApplicationLauncher();
 341     launcher->setCurrent(QStringLiteral("launcher"));
 342     HomescreenHandler* homescreenHandler = new HomescreenHandler(aglShell, launcher);
 343     homescreenHandler->init();
 344
 345     agl_shell_desktop_add_listener(shell_data.shell_desktop, &shell_desktop_listener, homescreenHandler);
 346
 347     QQmlApplicationEngine engine;
 348     QQmlContext *context = engine.rootContext();
 349
 350     context->setContextProperty("homescreenHandler", homescreenHandler);
 351     context->setContextProperty("launcher", launcher);
 352     context->setContextProperty("weather", new Weather());
 353     context->setContextProperty("bluetooth", new Bluetooth(false, context));
 354
 355     // we add it here even if we don't use it
 356     context->setContextProperty("shell", aglShell);
 357
 358     /* instead of loading main.qml we load one-by-one each of the QMLs,
 359      * divided now between several surfaces: panels, background.
 360      */
 361     load_agl_shell_app(native, &engine, shell_data.shell, screen_name, is_demo_val);
 362
 363     return a.exec();
 364 }