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/*
* Copyright (C) 2014 Canonical, Ltd.
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License version 3, as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranties of MERCHANTABILITY,
* SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "applicationcontroller.h"
// qtmir
#include <logging.h>
// Qt
#include <QStandardPaths>
// upstart
extern "C" {
#include "ubuntu-app-launch.h"
}
namespace qtmir
{
namespace upstart
{
struct ApplicationController::Private
{
UbuntuAppLaunchAppObserver preStartCallback = nullptr;
UbuntuAppLaunchAppObserver startedCallback = nullptr;
UbuntuAppLaunchAppObserver stopCallback = nullptr;
UbuntuAppLaunchAppObserver focusCallback = nullptr;
UbuntuAppLaunchAppObserver resumeCallback = nullptr;
UbuntuAppLaunchAppFailedObserver failureCallback = nullptr;
};
namespace {
/**
* @brief toShortAppIdIfPossible
* @param appId - any string that you think is an appId
* @return if a valid appId was input, a shortened appId is returned, else returns the input string unaltered
*/
QString toShortAppIdIfPossible(const QString &appId) {
gchar *package, *application;
if (ubuntu_app_launch_app_id_parse(appId.toLatin1().constData(), &package, &application, nullptr)) {
// is long appId, so assemble its short appId
QString shortAppId = QString("%1_%2").arg(package).arg(application);
g_free(package);
g_free(application);
return shortAppId;
} else {
return appId;
}
}
/**
* @brief toLongAppIdIfPossible
* @param shortAppId - any string that you think is a short appId
* @return if valid short appId was input, the corresponding long appId is returned. If a long appId was
* entered, it is returned unchanged. Anything else is also returned unchanged.
*/
QString toLongAppIdIfPossible(const QString &shortAppId) {
if (ubuntu_app_launch_app_id_parse(shortAppId.toLatin1().constData(), nullptr, nullptr, nullptr)) {
// then we got a long appId after all, just return it
return shortAppId;
} else {
// try to parse the string in the form "$package_$application"
QRegExp shortAppIdMask("[a-z0-9][a-z0-9+.-]+_[a-zA-Z0-9+.-]+");
if (!shortAppIdMask.exactMatch(shortAppId)) {
// input string not a short appId, so just return it unchanged
return shortAppId;
}
// ask upstart for the long appId corresponding to this short appId
QStringList parts = shortAppId.split("_");
gchar *longAppId;
longAppId = ubuntu_app_launch_triplet_to_app_id(parts.first().toLatin1().constData(),
parts.last().toLatin1().constData(),
nullptr);
if (longAppId == nullptr) {
// was unable to construct a long appId from the short appId, return input unchanged
return shortAppId;
} else {
QString appId(longAppId);
g_free(longAppId);
return appId;
}
}
}
} // namespace
ApplicationController::ApplicationController()
: qtmir::ApplicationController(),
impl(new Private())
{
impl->preStartCallback = [](const gchar * appId, gpointer userData) {
auto thiz = static_cast<ApplicationController*>(userData);
Q_EMIT(thiz->applicationAboutToBeStarted(toShortAppIdIfPossible(appId)));
};
impl->startedCallback = [](const gchar * appId, gpointer userData) {
auto thiz = static_cast<ApplicationController*>(userData);
Q_EMIT(thiz->applicationStarted(toShortAppIdIfPossible(appId)));
};
impl->stopCallback = [](const gchar * appId, gpointer userData) {
auto thiz = static_cast<ApplicationController*>(userData);
Q_EMIT(thiz->applicationStopped(toShortAppIdIfPossible(appId)));
};
impl->focusCallback = [](const gchar * appId, gpointer userData) {
auto thiz = static_cast<ApplicationController*>(userData);
Q_EMIT(thiz->applicationFocusRequest(toShortAppIdIfPossible(appId)));
};
impl->resumeCallback = [](const gchar * appId, gpointer userData) {
auto thiz = static_cast<ApplicationController*>(userData);
Q_EMIT(thiz->applicationResumeRequest(toShortAppIdIfPossible(appId)));
};
impl->failureCallback = [](const gchar * appId, UbuntuAppLaunchAppFailed failureType, gpointer userData) {
ApplicationController::Error error;
switch(failureType)
{
case UBUNTU_APP_LAUNCH_APP_FAILED_CRASH: error = ApplicationController::Error::APPLICATION_CRASHED;
case UBUNTU_APP_LAUNCH_APP_FAILED_START_FAILURE: error = ApplicationController::Error::APPLICATION_FAILED_TO_START;
}
auto thiz = static_cast<ApplicationController*>(userData);
Q_EMIT(thiz->applicationError(toShortAppIdIfPossible(appId), error));
};
ubuntu_app_launch_observer_add_app_starting(impl->preStartCallback, this);
ubuntu_app_launch_observer_add_app_started(impl->startedCallback, this);
ubuntu_app_launch_observer_add_app_stop(impl->stopCallback, this);
ubuntu_app_launch_observer_add_app_focus(impl->focusCallback, this);
ubuntu_app_launch_observer_add_app_resume(impl->resumeCallback, this);
ubuntu_app_launch_observer_add_app_failed(impl->failureCallback, this);
}
ApplicationController::~ApplicationController()
{
ubuntu_app_launch_observer_delete_app_starting(impl->preStartCallback, this);
ubuntu_app_launch_observer_delete_app_started(impl->startedCallback, this);
ubuntu_app_launch_observer_delete_app_stop(impl->stopCallback, this);
ubuntu_app_launch_observer_delete_app_focus(impl->focusCallback, this);
ubuntu_app_launch_observer_delete_app_resume(impl->resumeCallback, this);
ubuntu_app_launch_observer_delete_app_failed(impl->failureCallback, this);
}
pid_t ApplicationController::primaryPidForAppId(const QString& appId)
{
GPid pid = ubuntu_app_launch_get_primary_pid(toLongAppIdIfPossible(appId).toLatin1().constData());
if (!pid)
qDebug() << "ApplicationController::primaryPidForAppId FAILED to get PID for appId=" << appId;
return pid;
}
bool ApplicationController::appIdHasProcessId(pid_t pid, const QString& appId)
{
return ubuntu_app_launch_pid_in_app_id(pid, toLongAppIdIfPossible(appId).toLatin1().constData());
}
bool ApplicationController::stopApplicationWithAppId(const QString& appId)
{
auto result = ubuntu_app_launch_stop_application(toLongAppIdIfPossible(appId).toLatin1().constData());
if (!result)
qDebug() << "ApplicationController::stopApplication FAILED to stop appId=" << appId;
return result;
}
bool ApplicationController::startApplicationWithAppIdAndArgs(const QString& appId, const QStringList& arguments)
{
// Convert arguments QStringList into format suitable for ubuntu-app-launch
// The last item should be null, which is done by g_new0, we just don't fill it.
auto upstartArgs = g_new0(gchar *, arguments.length() + 1);
for (int i=0; i<arguments.length(); i++) {
upstartArgs[i] = g_strdup(arguments.at(i).toUtf8().data());
}
auto result = ubuntu_app_launch_start_application(
toLongAppIdIfPossible(appId).toLatin1().constData(),
static_cast<const gchar * const *>(upstartArgs));
g_strfreev(upstartArgs);
if (!result)
qDebug() << "Application::Controller::startApplicationWithAppIdAndArgs FAILED to start appId" << appId;
return result;
}
QFileInfo ApplicationController::findDesktopFileForAppId(const QString &appId) const
{
qCDebug(QTMIR_APPLICATIONS) << "ApplicationController::desktopFilePathForAppId - appId=" << appId;
// Search for the correct desktop file using a simple heuristic
int dashPos = -1;
QString helper = toLongAppIdIfPossible(appId);
QString desktopFile;
do {
if (dashPos != -1) {
helper = helper.replace(dashPos, 1, '/');
}
desktopFile = QStandardPaths::locate(QStandardPaths::ApplicationsLocation, QString("%1.desktop").arg(helper));
if (!desktopFile.isEmpty()) return desktopFile;
dashPos = helper.indexOf("-");
} while (dashPos != -1);
return QFileInfo();
}
} // namespace upstart
} // namespace qtmir
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