launcher: rely on applaunchd for application startupmarlin_12.91.0marlin/12.91.012.91.0

In the new App FW setup, `launcher` should only instruct `applaunchd` to
execute an application. In order to do so, it must first build a list of
available applications by looking for and parsing `.desktop` files in
relevant folders.

Then, when an application must be started, it has to call the
corresponding `applaunchd` method through D-Bus, which will then handle
the application startup using either command line execution or D-Bus
activation.

Bug-AGL: SPEC-4159 SPEC-4160
Signed-off-by: Arnaud Ferraris <arnaud.ferraris@collabora.com>
Change-Id: Ie2f55a5acb64ed90aa6aafb687c927d87f6cc0aa

1 files changed, 55 insertions, 12 deletions

diff --git a/launcher/src/homescreenhandler.cpp b/launcher/src/homescreenhandler.cpp
index 811daa0..9cf7e61 100644
--- a/launcher/src/homescreenhandler.cpp
+++ b/launcher/src/homescreenhandler.cpp
@@ -15,33 +15,76 @@
  * limitations under the License.
  */
 
+#include <QDBusMessage>
+#include <QDBusConnection>
 #include "homescreenhandler.h"
 #include "hmi-debug.h"
 
+#include <json.h>
+
+#define APPLAUNCH_DBUS_IFACE     "org.automotivelinux.AppLaunch"
+#define APPLAUNCH_DBUS_OBJECT    "/org/automotivelinux/AppLaunch"
+
 HomescreenHandler::HomescreenHandler(QObject *parent) : QObject(parent)
 {
+    applaunch_iface = new org::automotivelinux::AppLaunch(APPLAUNCH_DBUS_IFACE, APPLAUNCH_DBUS_OBJECT, QDBusConnection::sessionBus(), this);
 }
 
 HomescreenHandler::~HomescreenHandler()
 {
 }
 
-void HomescreenHandler::tapShortcut(QString application_id, QString output_name)
+void HomescreenHandler::tapShortcut(QString application_id)
 {
-	HMI_DEBUG("Launcher","tapShortcut %s", application_id.toStdString().c_str());
-}
+    HMI_DEBUG("Launcher","tapShortcut %s", application_id.toStdString().c_str());
 
-void HomescreenHandler::onRep(struct json_object* reply_contents)
-{
-	if (reply_contents) {
-		QString data = json_object_to_json_string(reply_contents);
-		HMI_DEBUG("Launcher", "doing an emit initAppList()");
-		emit initAppList(data);
-	} else {
-		HMI_DEBUG("Launcher", "reply contents is invalid!");
-	}
+    QDBusPendingReply<> reply = applaunch_iface->start(application_id);
+    reply.waitForFinished();
+    if (reply.isError()) {
+        HMI_ERROR("Launcher","Unable to start application '%s': %s",
+                  application_id.toStdString().c_str(),
+                  reply.error().message().toStdString().c_str());
+    }
 }
 
 void HomescreenHandler::getRunnables(void)
 {
+	struct json_object *json_applist;
+	QString applist;
+    QStringList apps;
+
+    QDBusPendingReply<QVariantList> reply = applaunch_iface->listApplications(true);
+    reply.waitForFinished();
+    if (reply.isError()) {
+        HMI_ERROR("Launcher","Unable to retrieve application list: %s",
+                  reply.error().message().toStdString().c_str());
+        return;
+    } else {
+        QVariantList applist_variant = reply.value();
+        for (auto &v: applist_variant) {
+            QString app_id;
+            QString name;
+            QString icon_path;
+            const QDBusArgument &dbus_arg = v.value<QDBusArgument>();
+
+            dbus_arg.beginStructure();
+            dbus_arg >> app_id >> name >> icon_path;
+
+            apps << QString("{ \"name\":\"%1\", \"id\":\"%2\", \"icon\":\"%3\" }")
+                        .arg(name)
+                        .arg(app_id)
+                        .arg(icon_path);
+            dbus_arg.endStructure();
+        }
+    }
+
+    applist = QString("[ %1 ]").arg(apps.join(", "));
+    json_applist = json_tokener_parse(applist.toLocal8Bit().data());
+    if (json_applist) {
+        QString data = json_object_to_json_string(json_applist);
+        HMI_DEBUG("Launcher", "doing an emit initAppList()");
+        emit initAppList(data);
+    } else {
+        HMI_DEBUG("Launcher", "app list is invalid!");
+    }
 }