app/eventhandler.cpp

   1 /*
   2  * Copyright (c) 2019 TOYOTA MOTOR CORPORATION
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <functional>
  18 #include <QUrl>
  19 #include <QDebug>
  20 #include <QGuiApplication>
  21 #include <QJsonDocument>
  22 #include <QJsonObject>
  23 #include <QQmlContext>
  24 #include <QtQml/QQmlApplicationEngine>
  25 #include <cstring>
  26 #include <QFileInfo>
  27 #include <qpa/qplatformnativeinterface.h>
  28
  29 #include "eventhandler.h"
  30
  31 const char _myrole[] = "on_screen";
  32 const char _parameter[] = "parameter";
  33 const char _replyto[] = "replyto";
  34 const char _onscreen_title[] = "onscreenTitle";
  35 const char _button_name[] = "buttonName";
  36 const char _drawing_name[] = "drawing_name";
  37 const char _application_id[] = "application_id";
  38
  39
  40 void* EventHandler::myThis = 0;
  41
  42 static struct wl_output *
  43 getWlOutput(QScreen *screen)
  44 {
  45         QPlatformNativeInterface *native = qApp->platformNativeInterface();
  46         void *output = native->nativeResourceForScreen("output", screen);
  47         return static_cast<struct ::wl_output*>(output);
  48 }
  49
  50 static void
  51 global_add(void *data, struct wl_registry *reg, uint32_t name,
  52            const char *interface, uint32_t version)
  53 {
  54         struct agl_shell_desktop **shell =
  55                 static_cast<struct agl_shell_desktop **>(data);
  56
  57         if (strcmp(interface, agl_shell_desktop_interface.name) == 0) {
  58                 *shell = static_cast<struct agl_shell_desktop *>(
  59                         wl_registry_bind(reg, name, &agl_shell_desktop_interface, version)
  60                 );
  61         }
  62 }
  63
  64 static void global_remove(void *data, struct wl_registry *reg, uint32_t id)
  65 {
  66         (void) data;
  67         (void) reg;
  68         (void) id;
  69 }
  70
  71 static const struct wl_registry_listener registry_listener = {
  72         global_add,
  73         global_remove,
  74 };
  75
  76 static void
  77 application_id_event(void *data, struct agl_shell_desktop *agl_shell_desktop,
  78                 const char *app_id)
  79 {
  80         EventHandler *ev_handler = static_cast<EventHandler *>(data);
  81         (void) agl_shell_desktop;
  82
  83         // should probably add here to a list the application or trigger emit
  84         // for QML code, also note that we get here our own application
  85         if (strcmp(app_id, APP_ID) == 0)
  86                 return;
  87
  88         qInfo() << "app_id: " << app_id;
  89 }
  90
  91 static void
  92 application_state_event(void *data, struct agl_shell_desktop *agl_shell_desktop,
  93                         const char *app_id, const char *app_data,
  94                         uint32_t app_state, uint32_t app_role)
  95 {
  96         EventHandler *ev_handler = static_cast<EventHandler *>(data);
  97         (void) agl_shell_desktop;
  98
  99         qInfo() << "got application_state_event() for app_id=" <<
 100                 app_id << ", state=" << app_state << ", role=" << app_role;
 101
 102         if (strcmp(app_id, APP_ID))
 103                 return;
 104
 105         if (app_state != AGL_SHELL_DESKTOP_APP_STATE_ACTIVATED)
 106                 return;
 107
 108         if (app_role != AGL_SHELL_DESKTOP_APP_ROLE_POPUP)
 109                 return;
 110
 111         qInfo() << "Got message " << app_data;
 112
 113         // should signal that we got the message
 114         emit ev_handler->updateModel(QVariant(app_data));
 115         emit ev_handler->showOnScreen();
 116 }
 117
 118 static const struct agl_shell_desktop_listener agl_shell_desk_listener = {
 119         application_id_event,
 120         application_state_event,
 121 };
 122
 123 static struct agl_shell_desktop *
 124 register_agl_shell_desktop(void)
 125 {
 126         struct wl_display *wl;
 127         struct wl_registry *registry;
 128         struct agl_shell_desktop *shell = nullptr;
 129
 130         QPlatformNativeInterface *native = qApp->platformNativeInterface();
 131
 132         wl = static_cast<struct wl_display *>(native->nativeResourceForIntegration("display"));
 133         registry = wl_display_get_registry(wl);
 134
 135         wl_registry_add_listener(registry, &registry_listener, &shell);
 136         // Roundtrip to get all globals advertised by the compositor
 137         wl_display_roundtrip(wl);
 138         wl_registry_destroy(registry);
 139
 140         return shell;
 141 }
 142
 143
 144 EventHandler::EventHandler(QObject *parent) :
 145     QObject(parent),
 146     m_dsp_sts(false)
 147 {
 148 }
 149
 150 EventHandler::~EventHandler()
 151 {
 152     if (shell_desktop)
 153             agl_shell_desktop_destroy(shell_desktop);
 154 }
 155
 156 void EventHandler::init(int port, const char *token)
 157 {
 158         (void) port;
 159         (void) token;
 160
 161         shell_desktop = register_agl_shell_desktop();
 162         if (shell_desktop)
 163                 agl_shell_desktop_add_listener(shell_desktop, &agl_shell_desk_listener, this);
 164 #if 0
 165     myThis = this;
 166     mp_wm = new QLibWindowmanager();
 167     mp_wm->init(port, token);
 168
 169     mp_hs = new LibHomeScreen();
 170     mp_hs->init(port, token);
 171
 172     mp_hs->registerCallback(nullptr, EventHandler::onRep_static);
 173     mp_hs->set_event_handler(LibHomeScreen::Event_ShowWindow, [this](json_object *object){
 174         /*
 175         {
 176             "application_id": "onscreenapp",
 177             "parameter": {
 178                 "title": "onscreen title",
 179                 "type": "critical,exclamation,question,information",
 180                 "contents": "message contents",
 181                 "buttons": ["button_name1", "button_name2", "button_name3"],
 182                 "replyto":"caller application id"
 183             }
 184         } */
 185         HMI_DEBUG(APP_ID, "recived json message is[%s]", json_object_get_string(object));
 186
 187         struct json_object *param;
 188         if(!json_object_object_get_ex(object, _parameter, &param)
 189         || json_object_get_type(param) != json_type_object) {
 190             HMI_DEBUG(APP_ID, "parameter error!");
 191             return;
 192         }
 193
 194         struct json_object *replyid;
 195         const char *replyto = nullptr;
 196         if(json_object_object_get_ex(param, _replyto, &replyid))
 197             replyto = json_object_get_string(replyid);
 198         if(replyto == nullptr) {
 199             HMI_DEBUG(APP_ID, "received replyto is null!");
 200             return;
 201         }
 202         m_req = qMakePair(QString(replyto), QString(json_object_to_json_string(param)));
 203
 204         if (this->getDisplayStatus() == HIDING) {
 205             this->activateWindow(_myrole, "on_screen");
 206         }
 207         else if(this->getDisplayStatus() == SHOWING) {
 208             this->setDisplayStatus(SWAPPING);
 209             emit this->hideOnScreen();
 210         }
 211         else {
 212             HMI_DEBUG(APP_ID, "onscreen swapping!");
 213         }
 214         HMI_DEBUG(APP_ID, "received showWindow event, end!, line=%d", __LINE__);
 215     });
 216
 217     mp_hs->set_event_handler(LibHomeScreen::Event_HideWindow, [this](json_object *object){
 218         emit this->hideOnScreen();
 219         HMI_DEBUG(APP_ID, "hideWindow json_object=%s", json_object_get_string(object));
 220     });
 221
 222     if (mp_wm->requestSurface(_myrole) != 0) {
 223         HMI_DEBUG(APP_ID, "!!!!LayoutHandler requestSurface Failed!!!!!");
 224         exit(EXIT_FAILURE);
 225     }
 226
 227     mp_wm->set_event_handler(QLibWindowmanager::Event_SyncDraw, [this](json_object *object) {
 228         HMI_DEBUG(APP_ID, "Surface %s got syncDraw!", _myrole);
 229         this->mp_wm->endDraw(QString(_myrole));
 230     });
 231
 232     mp_wm->set_event_handler(QLibWindowmanager::Event_Visible, [this](json_object *object) {
 233         struct json_object *value;
 234         json_object_object_get_ex(object, _drawing_name, &value);
 235         const char *name = json_object_get_string(value);
 236         if(!strcasecmp(_myrole, name)){
 237             this->setDisplayStatus(SHOWING);
 238             this->m_dsp = this->m_req;
 239             this->updateModel(QVariant(this->m_dsp.second));
 240             emit this->showOnScreen();
 241         }
 242
 243         HMI_DEBUG(APP_ID, "Event_Visible kKeyDrawingName = %s", name);
 244     });
 245
 246     mp_wm->set_event_handler(QLibWindowmanager::Event_Invisible, [this](json_object *object) {
 247         struct json_object *value;
 248         json_object_object_get_ex(object, _drawing_name, &value);
 249         const char *name = json_object_get_string(value);
 250
 251         HMI_DEBUG(APP_ID, "Event_Invisible kKeyDrawingName = %s", name);
 252     });
 253
 254     HMI_DEBUG(APP_ID, "LayoutHander::init() finished.");
 255 #endif
 256 }
 257
 258 #if 0
 259 void EventHandler::onRep_static(struct json_object* reply_contents)
 260 {
 261     static_cast<EventHandler*>(EventHandler::myThis)->onRep(reply_contents);
 262 }
 263
 264 void EventHandler::onRep(struct json_object* reply_contents)
 265 {
 266     const char* str = json_object_to_json_string(reply_contents);
 267     HMI_DEBUG(APP_ID, "EventHandler::onReply %s", str);
 268 }
 269 #endif
 270
 271 void EventHandler::activateWindow(const char *role, const char *area)
 272 {
 273 #if 0
 274     HMI_DEBUG(APP_ID, "EventHandler::activateWindow()");
 275     mp_wm->activateWindow(role, area);
 276 #endif
 277         fprintf(stderr, "EventHandler::activateWindow() role %s, area %s\n",
 278                         role, area);
 279 }
 280
 281 void EventHandler::deactivateWindow()
 282 {
 283 #if 0
 284     HMI_DEBUG(APP_ID, "EventHandler::deactivateWindow()");
 285     if(getDisplayStatus() == SWAPPING) {
 286         setDisplayStatus(SHOWING);
 287         m_dsp = m_req;
 288         updateModel(QVariant(this->m_dsp.second));
 289         emit showOnScreen();
 290     }
 291     else {
 292         this->setDisplayStatus(HIDING);
 293         mp_wm->deactivateWindow(_myrole);
 294     }
 295 #endif
 296         int display_status = getDisplayStatus();
 297         fprintf(stderr, "EventHandler::deactivateWindow(), "
 298                         "display_status %d\n", display_status);
 299 }
 300
 301 void EventHandler::onScreenReply(const QString &ons_title, const QString &btn_name)
 302 {
 303     fprintf(stderr, "ons_title=%s btn_name=%s\n", ons_title.toStdString().c_str(), btn_name.toStdString().c_str());
 304     emit this->hideOnScreen();
 305
 306 #if 0
 307     struct json_object* j_param = json_object_new_object();
 308     json_object_object_add(j_param, _onscreen_title, json_object_new_string(ons_title.toStdString().c_str()));
 309     json_object_object_add(j_param, _button_name, json_object_new_string(btn_name.toStdString().c_str()));
 310     mp_hs->replyShowWindow(m_dsp.first.toStdString().c_str(), j_param);
 311 #endif
 312     fprintf(stderr, "EventHandler::onScreenReply with ons_title %s, btn_name %s\n",
 313                     ons_title.toStdString().c_str(), btn_name.toStdString().c_str());
 314 }