Adopt window manager feature to activate surface

Adopt windowmanager feature to get rendering right and show up from application
Please refer to the sequence :
https://wiki.automotivelinux.org/_media/agl-hmi-fw_windowmanager_spec_v0.1.0.pdf
 page: 5

qlibwindowmanager will be removed when qlibwindowmanager repository is created

Change-Id: I486aabdedb0414cdf0d3f43db35534e6b109bcd9
Signed-off-by: Kazumasa Mitsunari <knimitz@witz-inc.co.jp>

5 files changed, 176 insertions, 17 deletions

diff --git a/app/app.pro b/app/app.pro
index e0a927e..fd777a3 100644
--- a/app/app.pro
+++ b/app/app.pro
@@ -1,8 +1,11 @@
 TARGET = radio
 QT = quickcontrols2
 
-HEADERS = PresetDataObject.h
-SOURCES = main.cpp PresetDataObject.cpp
+HEADERS = PresetDataObject.h qlibwindowmanager.h
+SOURCES = main.cpp PresetDataObject.cpp qlibwindowmanager.cpp
+
+CONFIG += link_pkgconfig
+PKGCONFIG += windowmanager
 
 RESOURCES += \
     radio.qrc \
diff --git a/app/main.cpp b/app/main.cpp
index e430099..23966ca 100644
--- a/app/main.cpp
+++ b/app/main.cpp
@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2016 The Qt Company Ltd.
  * Copyright (C) 2016, 2017 Konsulko Group
+ * Copyright (C) 2016, 2017 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.
@@ -23,25 +24,15 @@
 #include <QtQml/QQmlApplicationEngine>
 #include <QtQml/QQmlContext>
 #include <QtQuickControls2/QQuickStyle>
-#include <stdlib.h>
+#include <QQuickWindow>
 #include "PresetDataObject.h"
+#include "qlibwindowmanager.h"
 
-
-#ifdef HAVE_LIBHOMESCREEN
-#include <libhomescreen.hpp>
-#endif
+static QLibWindowmanager* qwm;
+static std::string myname = std::string("Radio");
 
 int main(int argc, char *argv[])
 {
-#ifdef HAVE_LIBHOMESCREEN
-    LibHomeScreen libHomeScreen;
-
-    if (!libHomeScreen.renderAppToAreaAllowed(0, 1)) {
-        qWarning() << "renderAppToAreaAllowed is denied";
-        return -1;
-    }
-#endif
-
     QGuiApplication app(argc, argv);
 
     QQuickStyle::setStyle("AGL");
@@ -98,8 +89,30 @@ int main(int argc, char *argv[])
         query.addQueryItem(QStringLiteral("token"), secret);
         bindingAddress.setQuery(query);
         context->setContextProperty(QStringLiteral("bindingAddress"), bindingAddress);
+
+        qwm = new QLibWindowmanager();
+        // WindowManager
+        if(qwm->init(port,secret) != 0){
+            exit(EXIT_FAILURE);
+        }
+        if (qwm->requestSurface(myname.c_str()) != 0) {
+            exit(EXIT_FAILURE);
+        }
+        qwm->set_event_handler(QLibWindowmanager::Event_SyncDraw, [qwm](json_object *object) {
+            fprintf(stderr, "Surface got syncDraw!\n");
+            qwm->endDraw(myname.c_str());
+            });
+        qwm->set_event_handler(QLibWindowmanager::Event_FlushDraw, [](json_object *object) {
+            fprintf(stderr, "Surface got flushDraw!\n");;
+            });
+
+        // Loading QML File
+        engine.load(QUrl(QStringLiteral("qrc:/Radio.qml")));
+        QObject *root = engine.rootObjects().first();
+        QQuickWindow *window = qobject_cast<QQuickWindow *>(root);
+        QObject::connect(window, SIGNAL(frameSwapped()),
+            qwm, SLOT(slotActivateSurface()));  // This should be disconnected, but when...
     }
-    engine.load(QUrl(QStringLiteral("qrc:/Radio.qml")));
 
     return app.exec();
 }
diff --git a/app/qlibwindowmanager.cpp b/app/qlibwindowmanager.cpp
new file mode 100644
index 0000000..7380bc8
--- /dev/null
+++ b/app/qlibwindowmanager.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2017 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 "qlibwindowmanager.h"
+#include <unistd.h>
+
+int QLibWindowmanager::init(int port, const QString &token) {
+    std::string ctoken = token.toStdString();
+    return this->wm->init(port, ctoken.c_str());
+}
+
+int QLibWindowmanager::requestSurface(const char *label) {
+    applabel = label;
+    json_object *obj = json_object_new_object();
+    json_object_object_add(obj, wm->kKeyDrawingName, json_object_new_string(label));
+    return this->wm->requestSurface(obj);
+}
+
+int QLibWindowmanager::activateSurface(const char *label) {
+    json_object *obj = json_object_new_object();
+    json_object_object_add(obj, wm->kKeyDrawingName, json_object_new_string(label));
+    json_object_object_add(obj, wm->kKeyDrawingArea, json_object_new_string("normal.full"));
+    return this->wm->activateSurface(obj);
+}
+
+int QLibWindowmanager::deactivateSurface(const char *label) {
+    json_object *obj = json_object_new_object();
+    json_object_object_add(obj, wm->kKeyDrawingName, json_object_new_string(label));
+    return this->wm->deactivateSurface(obj);
+}
+
+int QLibWindowmanager::endDraw(const char *label) {
+    json_object *obj = json_object_new_object();
+    json_object_object_add(obj, wm->kKeyDrawingName, json_object_new_string(label));
+    return this->wm->endDraw(obj); 
+    }
+
+void QLibWindowmanager::set_event_handler(enum QEventType et,
+                                  handler_fun f) {
+    LibWindowmanager::EventType wet = (LibWindowmanager::EventType)et;
+    return this->wm->set_event_handler(wet, std::move(f));
+}
+
+void QLibWindowmanager::slotActivateSurface(){
+    if(!isActive){
+        qDebug("Let's show radio");
+        isActive = true;
+        this->activateSurface(applabel.c_str());
+    }
+}
+
+QLibWindowmanager::QLibWindowmanager(QObject *parent) 
+    :QObject(parent), isActive(false)
+{
+    wm = new LibWindowmanager();
+}
+
+QLibWindowmanager::~QLibWindowmanager() { }
diff --git a/app/qlibwindowmanager.h b/app/qlibwindowmanager.h
new file mode 100644
index 0000000..dd0694e
--- /dev/null
+++ b/app/qlibwindowmanager.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2017 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.
+ */
+
+#ifndef QLIBWINDOWMANAGER_H
+#define QLIBWINDOWMANAGER_H
+#include <libwindowmanager.h>
+#include <functional>
+ #include <QObject>
+ #include <QUrl>
+ #include <QVariant>
+ #include <string>
+ #include <vector>
+
+class QLibWindowmanager : public QObject{
+Q_OBJECT
+public:
+    explicit QLibWindowmanager(QObject *parent = nullptr);
+    ~QLibWindowmanager();
+
+    QLibWindowmanager(const QLibWindowmanager &) = delete;
+    QLibWindowmanager &operator=(const QLibWindowmanager &) = delete;
+
+public:
+    using handler_fun = std::function<void(json_object *object)>;
+
+    enum QEventType {
+       Event_Active = 0,
+       Event_Inactive,
+
+       Event_Visible,
+       Event_Invisible,
+
+       Event_SyncDraw,
+       Event_FlushDraw,
+    };
+
+    static QLibWindowmanager &instance();
+
+    int init(int port, const QString &token);
+
+    // WM API
+    int requestSurface(const char *label);
+    int activateSurface(const char *label);
+    int deactivateSurface(const char *label);
+    int endDraw(const char *label);
+    void set_event_handler(enum QEventType et, handler_fun f);
+
+public slots:
+    void slotActivateSurface();
+    
+private:
+    LibWindowmanager* wm;
+    std::string applabel;
+    std::vector<int> surfaceIDs;
+    bool isActive;
+
+};
+#endif // LIBWINDOWMANAGER_H
diff --git a/package/config.xml b/package/config.xml
index 9d59089..698598c 100644
--- a/package/config.xml
+++ b/package/config.xml
@@ -7,6 +7,7 @@
   <author>Qt</author>
   <license>APL 2.0</license>
   <feature name="urn:AGL:widget:required-api">
+	<param name="windowmanager" value="ws" />
     <param name="radio" value="ws" />
   </feature>
   <feature name="urn:AGL:widget:required-permission">