/*
* MatrixWebView.cpp
*
* MatrixWebView Class inherted from QWebView to support additional
* functionalities such as signal handler
*
* Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "MatrixWebView.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <QApplication>
int MatrixWebView::sigtermFd[2];
MatrixWebView::MatrixWebView(const QUrl& url)
{
if (::socketpair(AF_UNIX, SOCK_STREAM, 0, sigtermFd))
qFatal("Couldn't create TERM socketpair");
view = new QWebEngineView(this);
view->load(url);
setCentralWidget(view);
snTerm = new QSocketNotifier(sigtermFd[1], QSocketNotifier::Read, this);
connect(snTerm, SIGNAL(activated(int)), this, SLOT(handleSigTerm()));
}
void MatrixWebView::termSignalHandler(int)
{
char a = 1;
if(::write(sigtermFd[0], &a, sizeof(a))){}
}
void MatrixWebView::handleSigTerm()
{
snTerm->setEnabled(false);
char tmp;
if(::read(sigtermFd[1], &tmp, sizeof(tmp))){}
// do Qt stuff
qApp->quit();
snTerm->setEnabled(true);
}