Add onscreenapp

Onscreenapp is a qt application for showing onscreens.
Applications can show/hide onscreen by calling homescreen-service's
showWindow/hideWindow verb. Applications also can customize onscreen's
title,type, display contents and buttons. Some images about onscreen
pattern had uploaded in JIRA SPEC-1967.

Bug-AGL: SPEC-1967

Change-Id: I421193f7d089584a26db629be27414d050a74337
Signed-off-by: wang_zhiqiang <wang_zhiqiang@dl.cn.nexty-ele.com>

1 files changed, 191 insertions, 0 deletions

diff --git a/app/eventhandler.cpp b/app/eventhandler.cpp
new file mode 100644
index 0000000..c33022a
--- /dev/null
+++ b/app/eventhandler.cpp
@@ -0,0 +1,191 @@
+/*
+ * Copyright (c) 2019 TOYOTA MOTOR CORPORATION
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <functional>
+#include <QUrl>
+#include <QDebug>
+#include <QJsonDocument>
+#include <QJsonObject>
+#include <QQmlContext>
+#include <QtQml/QQmlApplicationEngine>
+#include <cstring>
+#include <QFileInfo>
+
+#include "eventhandler.h"
+
+const char _myrole[] = "on_screen";
+const char _parameter[] = "parameter";
+const char _replyto[] = "replyto";
+const char _button_name[] = "buttonName";
+const char _drawing_name[] = "drawing_name";
+const char _application_id[] = "application_id";
+
+
+void* EventHandler::myThis = 0;
+
+EventHandler::EventHandler(QObject *parent) :
+    QObject(parent),
+    mp_hs(nullptr),
+    mp_wm(nullptr),
+    m_dsp_sts(false)
+{
+}
+
+EventHandler::~EventHandler()
+{
+    if (mp_hs != nullptr) {
+        delete mp_hs;
+    }
+    if (mp_wm != nullptr) {
+        delete mp_wm;
+    }
+}
+
+void EventHandler::init(int port, const char *token)
+{
+    myThis = this;
+    mp_wm = new QLibWindowmanager();
+    mp_wm->init(port, token);
+
+    mp_hs = new LibHomeScreen();
+    mp_hs->init(port, token);
+
+    mp_hs->registerCallback(nullptr, EventHandler::onRep_static);
+    mp_hs->set_event_handler(LibHomeScreen::Event_ShowWindow, [this](json_object *object){
+        /*
+        {
+            "application_id": "onscreenapp",
+            "parameter": {
+                "title": "onscreen title",
+                "type": "critical,exclamation,question,information",
+                "contents": "message contents",
+                "buttons": ["button_name1", "button_name2", "button_name3"],
+                "replyto":"caller application id"
+            }
+        } */
+        HMI_DEBUG(APP_ID, "recived json message is[%s]", json_object_get_string(object));
+
+        struct json_object *param;
+        if(!json_object_object_get_ex(object, _parameter, &param)
+        || json_object_get_type(param) != json_type_object) {
+            HMI_DEBUG(APP_ID, "parameter error!");
+            return;
+        }
+
+        struct json_object *replyid;
+        const char *replyto = nullptr;
+        if(json_object_object_get_ex(param, _replyto, &replyid))
+            replyto = json_object_get_string(replyid);
+        if(replyto == nullptr) {
+            HMI_DEBUG(APP_ID, "received replyto is null!");
+            return;
+        }
+        m_req = qMakePair(QString(replyto), QString(json_object_to_json_string(param)));
+
+        if (this->getDisplayStatus() == HIDING) {
+            this->activateWindow(_myrole, "on_screen");
+        }
+        else if(this->getDisplayStatus() == SHOWING) {
+            this->setDisplayStatus(SWAPPING);
+            emit this->hideOnScreen();
+        }
+        else {
+            HMI_DEBUG(APP_ID, "onscreen swapping!");
+        }
+        HMI_DEBUG(APP_ID, "received showWindow event, end!, line=%d", __LINE__);
+    });
+
+    mp_hs->set_event_handler(LibHomeScreen::Event_HideWindow, [this](json_object *object){
+        emit this->hideOnScreen();
+        HMI_DEBUG(APP_ID, "hideWindow json_object=%s", json_object_get_string(object));
+    });
+
+    if (mp_wm->requestSurface(_myrole) != 0) {
+        HMI_DEBUG(APP_ID, "!!!!LayoutHandler requestSurface Failed!!!!!");
+        exit(EXIT_FAILURE);
+    }
+
+    mp_wm->set_event_handler(QLibWindowmanager::Event_SyncDraw, [this](json_object *object) {
+        HMI_DEBUG(APP_ID, "Surface %s got syncDraw!", _myrole);
+        this->mp_wm->endDraw(QString(_myrole));
+    });
+
+    mp_wm->set_event_handler(QLibWindowmanager::Event_Visible, [this](json_object *object) {
+        struct json_object *value;
+        json_object_object_get_ex(object, _drawing_name, &value);
+        const char *name = json_object_get_string(value);
+        if(!strcasecmp(_myrole, name)){
+            this->setDisplayStatus(SHOWING);
+            this->m_dsp = this->m_req;
+            this->updateModel(QVariant(this->m_dsp.second));
+            emit this->showOnScreen();
+        }
+
+        HMI_DEBUG(APP_ID, "Event_Visible kKeyDrawingName = %s", name);
+    });
+
+    mp_wm->set_event_handler(QLibWindowmanager::Event_Invisible, [this](json_object *object) {
+        struct json_object *value;
+        json_object_object_get_ex(object, _drawing_name, &value);
+        const char *name = json_object_get_string(value);
+
+        HMI_DEBUG(APP_ID, "Event_Invisible kKeyDrawingName = %s", name);
+    });
+
+    HMI_DEBUG(APP_ID, "LayoutHander::init() finished.");
+}
+
+void EventHandler::onRep_static(struct json_object* reply_contents)
+{
+    static_cast<EventHandler*>(EventHandler::myThis)->onRep(reply_contents);
+}
+
+void EventHandler::onRep(struct json_object* reply_contents)
+{
+    const char* str = json_object_to_json_string(reply_contents);
+    HMI_DEBUG(APP_ID, "EventHandler::onReply %s", str);
+}
+
+void EventHandler::activateWindow(const char *role, const char *area)
+{
+    HMI_DEBUG(APP_ID, "EventHandler::activateWindow()");
+    mp_wm->activateWindow(role, area);
+}
+
+void EventHandler::deactivateWindow()
+{
+    HMI_DEBUG(APP_ID, "EventHandler::deactivateWindow()");
+    if(getDisplayStatus() == SWAPPING) {
+        setDisplayStatus(SHOWING);
+        m_dsp = m_req;
+        updateModel(QVariant(this->m_dsp.second));
+        emit showOnScreen();
+    }
+    else {
+        this->setDisplayStatus(HIDING);
+        mp_wm->deactivateWindow(_myrole);
+    }
+}
+
+void EventHandler::onScreenReply(const QString &btn_name)
+{
+    HMI_DEBUG(APP_ID, "EventHandler::onScreenReply(),btn_name=%s", btn_name.toStdString().c_str());
+    emit this->hideOnScreen();
+
+    struct json_object* j_param = json_object_new_object();
+    json_object_object_add(j_param, _button_name, json_object_new_string(btn_name.toStdString().c_str()));
+    mp_hs->replyShowWindow(m_dsp.first.toStdString().c_str(), j_param);
+}