Check if dependencies are available and make it run without them

To develop apps efficiently, apps should work on any platform that Qt
supports.

Change-Id: I559786d207663e023cfbbf1a3f6cf1770191a960
Signed-off-by: Tasuku Suzuki <tasuku.suzuki@qt.io>

5 files changed, 82 insertions, 41 deletions

diff --git a/app/app.pri b/app/app.pri
index e535cbc..590c154 100644
--- a/app/app.pri
+++ b/app/app.pri
@@ -2,4 +2,19 @@ TEMPLATE = app
 
 load(configure)
 
+qtCompileTest(libhomescreen)
+qtCompileTest(qlibwindowmanager)
+
+config_libhomescreen {
+    CONFIG += link_pkgconfig
+    PKGCONFIG += libhomescreen
+    DEFINES += HAVE_LIBHOMESCREEN
+}
+
+config_qlibwindowmanager {
+    CONFIG += link_pkgconfig
+    PKGCONFIG += qlibwindowmanager
+    DEFINES += HAVE_QLIBWINDOWMANAGER
+}
+
 DESTDIR = $${OUT_PWD}/../package/root/bin
diff --git a/app/app.pro b/app/app.pro
index 1aa4da0..c0b0cad 100644
--- a/app/app.pro
+++ b/app/app.pro
@@ -8,9 +8,6 @@ HEADERS += \
 SOURCES = main.cpp \
     translator.cpp
 
-CONFIG += link_pkgconfig
-PKGCONFIG += libhomescreen qlibwindowmanager
-
 RESOURCES += \
     dashboard.qrc \
     images/images.qrc
diff --git a/app/config.tests/qlibwindowmanager/qlibwindowmanager.cpp b/app/config.tests/qlibwindowmanager/qlibwindowmanager.cpp
new file mode 100644
index 0000000..bb95c93
--- /dev/null
+++ b/app/config.tests/qlibwindowmanager/qlibwindowmanager.cpp
@@ -0,0 +1,8 @@
+#include <qlibwindowmanager.h>
+
+int main(int argc,char **argv)
+{
+    QLibWindowmanager qwm;
+    return 0;
+}
+
diff --git a/app/config.tests/qlibwindowmanager/qlibwindowmanager.pro b/app/config.tests/qlibwindowmanager/qlibwindowmanager.pro
new file mode 100644
index 0000000..96721e8
--- /dev/null
+++ b/app/config.tests/qlibwindowmanager/qlibwindowmanager.pro
@@ -0,0 +1,5 @@
+SOURCES = qlibwindowmanager.cpp
+
+CONFIG -= qt
+CONFIG += link_pkgconfig
+PKGCONFIG += qlibwindowmanager
diff --git a/app/main.cpp b/app/main.cpp
index d7f15b5..ed393a4 100644
--- a/app/main.cpp
+++ b/app/main.cpp
@@ -25,8 +25,13 @@
 
 #include "translator.h"
 
+#ifdef HAVE_LIBHOMESCREEN
 #include <libhomescreen.hpp>
+#endif
+
+#ifdef HAVE_QLIBWINDOWMANAGER
 #include <qlibwindowmanager.h>
+#endif
 
 int main(int argc, char *argv[])
 {
@@ -51,10 +56,12 @@ int main(int argc, char *argv[])
     qmlRegisterType<Translator>("Translator", 1, 0, "Translator");
 
     QQmlApplicationEngine engine;
+    QQmlContext *context = engine.rootContext();
+    QUrl bindingAddress;
+    QString secret;
     if (positionalArguments.length() == 2) {
         int port = positionalArguments.takeFirst().toInt();
         QString secret = positionalArguments.takeFirst();
-        QUrl bindingAddress;
         bindingAddress.setScheme(QStringLiteral("ws"));
         bindingAddress.setHost(QStringLiteral("localhost"));
         bindingAddress.setPort(port);
@@ -62,49 +69,58 @@ int main(int argc, char *argv[])
         QUrlQuery query;
         query.addQueryItem(QStringLiteral("token"), secret);
         bindingAddress.setQuery(query);
-        QQmlContext *context = engine.rootContext();
         context->setContextProperty(QStringLiteral("bindingAddress"), bindingAddress);
+    } else {
+        context->setContextProperty(QStringLiteral("bindingAddress"), bindingAddress);
+    }
 
-        std::string token = secret.toStdString();
-        LibHomeScreen* hs = new LibHomeScreen();
-        QLibWindowmanager* qwm = new QLibWindowmanager();
-
-        // WindowManager
-        if(qwm->init(port,secret) != 0){
-            exit(EXIT_FAILURE);
-        }
-        // Request a surface as described in layers.json windowmanager’s file
-        if (qwm->requestSurface(myname) != 0) {
-            exit(EXIT_FAILURE);
-        }
-        // Create an event callback against an event type. Here a lambda is called when SyncDraw event occurs
-        qwm->set_event_handler(QLibWindowmanager::Event_SyncDraw, [qwm, myname](json_object *object) {
-            fprintf(stderr, "Surface got syncDraw!\n");
-            qwm->endDraw(myname);
-        });
+#ifdef HAVE_QLIBWINDOWMANAGER
+    // WindowManager
+    QLibWindowmanager* qwm = new QLibWindowmanager();
+    if(qwm->init(port,secret) != 0){
+        exit(EXIT_FAILURE);
+    }
+    // Request a surface as described in layers.json windowmanager’s file
+    if (qwm->requestSurface(myname) != 0) {
+        exit(EXIT_FAILURE);
+    }
+    // Create an event callback against an event type. Here a lambda is called when SyncDraw event occurs
+    qwm->set_event_handler(QLibWindowmanager::Event_SyncDraw, [qwm, myname](json_object *object) {
+        fprintf(stderr, "Surface got syncDraw!\n");
+        qwm->endDraw(myname);
+    });
+#endif
 
-        // HomeScreen
-        hs->init(port, token.c_str());
-        // Set the event handler for Event_TapShortcut which will activate the surface for windowmanager
-        hs->set_event_handler(LibHomeScreen::Event_TapShortcut, [qwm, myname](json_object *object){
-            json_object *appnameJ = nullptr;
-            if(json_object_object_get_ex(object, "application_name", &appnameJ))
+#ifdef HAVE_LIBHOMESCREEN
+    // HomeScreen
+    LibHomeScreen* hs = new LibHomeScreen();
+    std::string token = secret.toStdString();
+    hs->init(port, secret.to);
+    // Set the event handler for Event_TapShortcut which will activate the surface for windowmanager
+    hs->set_event_handler(LibHomeScreen::Event_TapShortcut, [qwm, myname](json_object *object){
+        json_object *appnameJ = nullptr;
+        if(json_object_object_get_ex(object, "application_name", &appnameJ))
+        {
+            const char *appname = json_object_get_string(appnameJ);
+            if(myname == appname)
             {
-                const char *appname = json_object_get_string(appnameJ);
-                if(myname == appname)
-                {
-                    qDebug("Surface %s got tapShortcut\n", appname);
-                    qwm->activateSurface(myname);
-                }
+                qDebug("Surface %s got tapShortcut\n", appname);
+                qwm->activateSurface(myname);
             }
-        });
+        }
+    });
+#endif
+    engine.load(QUrl(QStringLiteral("qrc:/Dashboard.qml")));
+
+    QObject *root = engine.rootObjects().first();
+    QQuickWindow *window = qobject_cast<QQuickWindow *>(root);
+#ifdef HAVE_QLIBWINDOWMANAGER
+    QObject::connect(window, SIGNAL(frameSwapped()), qwm, SLOT(slotActivateSurface()));
+#else
+    window->resize(1080, 1920 - 218 - 215);
+    window->setVisible(true);
+#endif
 
-        engine.load(QUrl(QStringLiteral("qrc:/Dashboard.qml")));
-        QObject *root = engine.rootObjects().first();
-        QQuickWindow *window = qobject_cast<QQuickWindow *>(root);
-        QObject::connect(window, SIGNAL(frameSwapped()), qwm, SLOT(slotActivateSurface()
-        ));
-    }
     return app.exec();
 }