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/*
* Copyright (c) 2017, 2018, 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 <QGuiApplication>
#include <QFileInfo>
#include "homescreenhandler.h"
#include <functional>
#include "hmi-debug.h"
#include <qpa/qplatformnativeinterface.h>
#define APPLAUNCH_DBUS_IFACE "org.automotivelinux.AppLaunch"
#define APPLAUNCH_DBUS_OBJECT "/org/automotivelinux/AppLaunch"
/* LAUNCHER_APP_ID shouldn't be started by applaunchd as it is started as a
* user session by systemd */
#define LAUNCHER_APP_ID "launcher"
void* HomescreenHandler::myThis = 0;
HomescreenHandler::HomescreenHandler(Shell *_aglShell, ApplicationLauncher *launcher, QObject *parent) :
QObject(parent),
aglShell(_aglShell)
{
mp_launcher = launcher;
applaunch_iface = new org::automotivelinux::AppLaunch(APPLAUNCH_DBUS_IFACE, APPLAUNCH_DBUS_OBJECT,
QDBusConnection::sessionBus(), this);
}
HomescreenHandler::~HomescreenHandler()
{
}
void HomescreenHandler::init(void)
{
myThis = this;
/*
* The "started" signal is received any time a start request is made to applaunchd,
* and the application either starts successfully or is already running. This
* effectively acts as a "switch to app X" action.
*/
connect(applaunch_iface, SIGNAL(started(QString)), this, SLOT(appStarted(QString)));
connect(applaunch_iface, SIGNAL(terminated(QString)), this, SLOT(appTerminated(QString)));
}
static struct wl_output *
getWlOutput(QPlatformNativeInterface *native, QScreen *screen)
{
void *output = native->nativeResourceForScreen("output", screen);
return static_cast<struct ::wl_output*>(output);
}
void HomescreenHandler::tapShortcut(QString application_id)
{
QDBusPendingReply<> reply;
HMI_DEBUG("HomeScreen","tapShortcut %s", application_id.toStdString().c_str());
if (application_id == LAUNCHER_APP_ID)
goto activate_app;
reply = applaunch_iface->start(application_id);
reply.waitForFinished();
if (reply.isError()) {
HMI_ERROR("HomeScreen","Unable to start application '%s': %s",
application_id.toStdString().c_str(),
reply.error().message().toStdString().c_str());
return;
}
activate_app:
if (mp_launcher) {
mp_launcher->setCurrent(application_id);
}
appStarted(application_id);
}
/*
* Keep track of currently running apps and the order in which
* they were activated. That way, when an app is closed, we can
* switch back to the previously active one.
*/
void HomescreenHandler::addAppToStack(const QString& application_id)
{
if (application_id == "homescreen")
return;
if (!apps_stack.contains(application_id)) {
apps_stack << application_id;
} else {
int current_pos = apps_stack.indexOf(application_id);
int last_pos = apps_stack.size() - 1;
if (current_pos != last_pos)
apps_stack.move(current_pos, last_pos);
}
}
void HomescreenHandler::appStarted(const QString& application_id)
{
struct agl_shell *agl_shell = aglShell->shell.get();
QPlatformNativeInterface *native = qApp->platformNativeInterface();
struct wl_output *output = getWlOutput(native, qApp->screens().first());
HMI_DEBUG("HomeScreen", "Activating application %s", application_id.toStdString().c_str());
agl_shell_activate_app(agl_shell, application_id.toStdString().c_str(), output);
addAppToStack(application_id);
}
void HomescreenHandler::appTerminated(const QString& application_id)
{
HMI_DEBUG("HomeScreen", "Application %s terminated, activating last app", application_id.toStdString().c_str());
if (apps_stack.contains(application_id)) {
apps_stack.removeOne(application_id);
if (!apps_stack.isEmpty())
appStarted(apps_stack.last());
}
}
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