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-rw-r--r--examples/embedded/flightinfo/flightinfo.cpp401
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diff --git a/examples/embedded/flightinfo/flightinfo.cpp b/examples/embedded/flightinfo/flightinfo.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2020 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "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 The Qt Company Ltd 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."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <QtCore>
-#include <QtWidgets>
-#include <QtNetwork>
-
-#include "ui_form.h"
-
-#define FLIGHTVIEW_URL "http://mobile.flightview.com/TrackByFlight.aspx"
-#define FLIGHTVIEW_RANDOM "http://mobile.flightview.com/TrackSampleFlight.aspx"
-
-// strips all invalid constructs that might trip QXmlStreamReader
-static QString sanitized(const QString &xml)
-{
- QString data = xml;
-
- // anything up to the html tag
- int i = data.indexOf("<html");
- if (i > 0)
- data.remove(0, i - 1);
-
- // everything inside the head tag
- i = data.indexOf("<head");
- if (i > 0)
- data.remove(i, data.indexOf("</head>") - i + 7);
-
- // invalid link for JavaScript code
- while (true) {
- i = data.indexOf("onclick=\"gotoUrl(");
- if (i < 0)
- break;
- data.remove(i, data.indexOf('\"', i + 9) - i + 1);
- }
-
- // all inline frames
- while (true) {
- i = data.indexOf("<iframe");
- if (i < 0)
- break;
- data.remove(i, data.indexOf("</iframe>") - i + 8);
- }
-
- // entities
- data.remove("&nbsp;");
- data.remove("&copy;");
-
- return data;
-}
-
-class FlightInfo : public QMainWindow
-{
- Q_OBJECT
-
-private:
-
- Ui_Form ui;
- QUrl m_url;
- QDate m_searchDate;
- QPixmap m_map;
- QNetworkAccessManager m_manager;
- QList<QNetworkReply *> mapReplies;
-
-public:
-
- FlightInfo(QMainWindow *parent = 0): QMainWindow(parent) {
-
- QWidget *w = new QWidget(this);
- ui.setupUi(w);
- setCentralWidget(w);
-
- ui.searchBar->hide();
- ui.infoBox->hide();
- connect(ui.searchButton, SIGNAL(clicked()), SLOT(startSearch()));
- connect(ui.flightEdit, SIGNAL(returnPressed()), SLOT(startSearch()));
-
- setWindowTitle("Flight Info");
-
- // Rendered from the public-domain vectorized aircraft
- // http://openclipart.org/media/people/Jarno
- m_map = QPixmap(":/aircraft.png");
-
- QAction *searchTodayAction = new QAction("Today's Flight", this);
- QAction *searchYesterdayAction = new QAction("Yesterday's Flight", this);
- QAction *randomAction = new QAction("Random Flight", this);
- connect(searchTodayAction, SIGNAL(triggered()), SLOT(today()));
- connect(searchYesterdayAction, SIGNAL(triggered()), SLOT(yesterday()));
- connect(randomAction, SIGNAL(triggered()), SLOT(randomFlight()));
- connect(&m_manager, SIGNAL(finished(QNetworkReply*)),
- this, SLOT(handleNetworkData(QNetworkReply*)));
- addAction(searchTodayAction);
- addAction(searchYesterdayAction);
- addAction(randomAction);
- setContextMenuPolicy(Qt::ActionsContextMenu);
- }
-
-private slots:
-
- void handleNetworkData(QNetworkReply *networkReply) {
- if (!networkReply->error()) {
- if (!mapReplies.contains(networkReply)) {
- // Assume UTF-8 encoded
- QByteArray data = networkReply->readAll();
- QString xml = QString::fromUtf8(data);
- digest(xml);
- } else {
- mapReplies.removeOne(networkReply);
- m_map.loadFromData(networkReply->readAll());
- update();
- }
- }
- networkReply->deleteLater();
- }
-
- void today() {
- QDateTime timestamp = QDateTime::currentDateTime();
- m_searchDate = timestamp.date();
- searchFlight();
- }
-
- void yesterday() {
- QDateTime timestamp = QDateTime::currentDateTime();
- timestamp = timestamp.addDays(-1);
- m_searchDate = timestamp.date();
- searchFlight();
- }
-
- void searchFlight() {
- ui.searchBar->show();
- ui.infoBox->hide();
- ui.flightStatus->hide();
- ui.flightName->setText("Enter flight number");
- ui.flightEdit->setFocus();
-#ifdef QT_KEYPAD_NAVIGATION
- ui.flightEdit->setEditFocus(true);
-#endif
- m_map = QPixmap();
- update();
- }
-
- void startSearch() {
- ui.searchBar->hide();
- QString flight = ui.flightEdit->text().simplified();
- if (!flight.isEmpty())
- request(flight, m_searchDate);
- }
-
- void randomFlight() {
- request(QString(), QDate::currentDate());
- }
-
-public slots:
-
- void request(const QString &flightCode, QDate date) {
-
- setWindowTitle("Loading...");
-
- QString code = flightCode.simplified();
- QString airlineCode = code.left(2).toUpper();
- QString flightNumber = code.mid(2, code.length());
-
- ui.flightName->setText("Searching for " + code);
-
- QUrlQuery query;
- query.addQueryItem("view", "detail");
- query.addQueryItem("al", airlineCode);
- query.addQueryItem("fn", flightNumber);
- query.addQueryItem("dpdat", date.toString("yyyyMMdd"));
- m_url = QUrl(FLIGHTVIEW_URL);
- m_url.setQuery(query);
-
- if (code.isEmpty()) {
- // random flight as sample
- m_url = QUrl(FLIGHTVIEW_RANDOM);
- ui.flightName->setText("Getting a random flight...");
- }
-
- m_manager.get(QNetworkRequest(m_url));
- }
-
-
-private:
-
- void digest(const QString &content) {
-
- setWindowTitle("Flight Info");
- QString data = sanitized(content);
-
- // do we only get the flight list?
- // we grab the first leg in the flight list
- // then fetch another URL for the real flight info
- int i = data.indexOf("a href=\"?view=detail");
- if (i > 0) {
- QString href = data.mid(i, data.indexOf('\"', i + 8) - i + 1);
- QRegularExpression regex("dpap=([A-Za-z0-9]+)");
- QRegularExpressionMatch match = regex.match(href);
- QString airport = match.captured(1);
- QUrlQuery query(m_url);
- query.addQueryItem("dpap", airport);
- m_url.setQuery(query);
- m_manager.get(QNetworkRequest(m_url));
- return;
- }
-
- QXmlStreamReader xml(data);
- bool inFlightName = false;
- bool inFlightStatus = false;
- bool inFlightMap = false;
- bool inFieldName = false;
- bool inFieldValue = false;
-
- QString flightName;
- QString flightStatus;
- QStringList fieldNames;
- QStringList fieldValues;
-
- while (!xml.atEnd()) {
- xml.readNext();
-
- if (xml.tokenType() == QXmlStreamReader::StartElement) {
- QStringRef className = xml.attributes().value("class");
- inFlightName |= xml.name() == "h1";
- inFlightStatus |= className == "FlightDetailHeaderStatus";
- inFlightMap |= className == "flightMap";
- if (xml.name() == "td" && !className.isEmpty()) {
- if (className.contains("fieldTitle")) {
- inFieldName = true;
- fieldNames += QString();
- fieldValues += QString();
- }
- if (className.contains("fieldValue"))
- inFieldValue = true;
- }
- if (xml.name() == "img" && inFlightMap) {
- const QByteArray encoded
- = ("http://mobile.flightview.com/" % xml.attributes().value("src")).toLatin1();
- QUrl url = QUrl::fromPercentEncoding(encoded);
- mapReplies.append(m_manager.get(QNetworkRequest(url)));
- }
- }
-
- if (xml.tokenType() == QXmlStreamReader::EndElement) {
- inFlightName &= xml.name() != "h1";
- inFlightStatus &= xml.name() != "div";
- inFlightMap &= xml.name() != "div";
- inFieldName &= xml.name() != "td";
- inFieldValue &= xml.name() != "td";
- }
-
- if (xml.tokenType() == QXmlStreamReader::Characters) {
- if (inFlightName)
- flightName += xml.text();
- if (inFlightStatus)
- flightStatus += xml.text();
- if (inFieldName)
- fieldNames.last() += xml.text();
- if (inFieldValue)
- fieldValues.last() += xml.text();
- }
- }
-
- if (fieldNames.isEmpty()) {
- QString code = ui.flightEdit->text().simplified().left(10);
- QString msg = QString("Flight %1 is not found").arg(code);
- ui.flightName->setText(msg);
- return;
- }
-
- ui.flightName->setText(flightName);
- flightStatus.remove("Status: ");
- ui.flightStatus->setText(flightStatus);
- ui.flightStatus->show();
-
- QStringList whiteList;
- whiteList << "Departure";
- whiteList << "Arrival";
- whiteList << "Scheduled";
- whiteList << "Takeoff";
- whiteList << "Estimated";
- whiteList << "Term-Gate";
-
- QString text;
- text = QString("<table width=%1>").arg(width() - 25);
- for (int i = 0; i < fieldNames.count(); i++) {
- QString fn = fieldNames[i].simplified();
- if (fn.endsWith(':'))
- fn = fn.left(fn.length() - 1);
- if (!whiteList.contains(fn))
- continue;
-
- QString fv = fieldValues[i].simplified();
- bool special = false;
- special |= fn.startsWith("Departure");
- special |= fn.startsWith("Arrival");
- text += "<tr>";
- if (special) {
- text += "<td align=center colspan=2>";
- text += "<b><font size=+1>" + fv + "</font></b>";
- text += "</td>";
- } else {
- text += "<td align=right>";
- text += fn;
- text += " : ";
- text += "&nbsp;";
- text += "</td>";
- text += "<td>";
- text += fv;
- text += "</td>";
- }
- text += "</tr>";
- }
- text += "</table>";
- ui.detailedInfo->setText(text);
- ui.infoBox->show();
- }
-
- void resizeEvent(QResizeEvent *event) {
- Q_UNUSED(event);
- ui.detailedInfo->setMaximumWidth(width() - 25);
- }
-
- void paintEvent(QPaintEvent *event) {
- QMainWindow::paintEvent(event);
- QPainter p(this);
- p.fillRect(rect(), QColor(131, 171, 210));
- if (!m_map.isNull()) {
- int x = (width() - m_map.width()) / 2;
- int space = ui.infoBox->pos().y();
- if (!ui.infoBox->isVisible())
- space = height();
- int top = ui.titleBox->height();
- int y = qMax(top, (space - m_map.height()) / 2);
- p.drawPixmap(x, y, m_map);
- }
- p.end();
- }
-
-};
-
-
-#include "flightinfo.moc"
-
-int main(int argc, char **argv)
-{
- Q_INIT_RESOURCE(flightinfo);
-
- QApplication app(argc, argv);
-
- FlightInfo w;
- w.resize(360, 504);
- w.show();
-
- return app.exec();
-}