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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Solutions component.
**
** $QT_BEGIN_LICENSE:BSD$
** 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 Digia Plc and its Subsidiary(-ies) 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 <QApplication>
#include <QMessageBox>
#include <QCursor>
#include <QFile>
#include <QLabel>
#include <QLineEdit>
#include <QTextBrowser>
#include <QLayout>
#include <QPushButton>
#include "google.h"
Google::Google(QWidget *parent)
: QWidget(parent), http(this)
{
// Generate the GUI.
quitButton = new QPushButton("&Quit", this);
searchString = new QLineEdit(this);
resultView = new QTextBrowser(this);
QVBoxLayout *layout = new QVBoxLayout(this);
QLabel *gLabel = new QLabel("Google Web APIs license key: ", this);
googleKey = new QLineEdit(this);
QHBoxLayout *topBar = new QHBoxLayout();
topBar->addWidget(gLabel);
topBar->addWidget(googleKey);
layout->addLayout(topBar);
QLabel *sLabel = new QLabel("Search string: ", this);
QPushButton *searchButton = new QPushButton("Search!", this);
QHBoxLayout *searchBar = new QHBoxLayout();
searchBar->addWidget(sLabel);
searchBar->addWidget(searchString);
searchBar->addWidget(searchButton);
layout->addLayout(searchBar);
layout->addWidget(resultView);
layout->addWidget(quitButton);
// Connect signals to slots. Note the submitRequest() slots.
connect(&http, SIGNAL(responseReady()), SLOT(getResponse()));
connect(quitButton, SIGNAL(clicked()), SLOT(close()));
connect(searchString, SIGNAL(returnPressed()), SLOT(submitRequest()));
connect(searchButton, SIGNAL(clicked()), SLOT(submitRequest()));
connect(googleKey, SIGNAL(returnPressed()), SLOT(submitRequest()));
// Pressing enter should trigger a search, unless focus has been
// explicitly moved.
searchButton->setDefault(true);
// Prepare to submit request.
http.setAction("urn:GoogleSearchAction");
http.setHost("api.google.com");
}
void Google::submitRequest()
{
// Check that the license key is set.
if (googleKey->text() == "") {
QMessageBox::warning(this, tr("Missing license key"),
tr("Please enter your Google Web APIs license key."
" If you do not have one, you can visit<br>"
" http://api.google.com/ and create a Google"
" account to obtain a license key."));
return;
}
// Check that we have a search string.
if (searchString->text() == "") {
QMessageBox::warning(this, tr("Missing search string"),
tr("Please enter a search string."));
return;
}
// Generate request. Details about how to generate a proper
// request are available from http://api.google.com/. The results
// are always fetched as latin1 in this example, but this can be
// easily changed (see the "ie" and "oe" arguments below).
QtSoapMessage request;
request.setMethod(QtSoapQName("doGoogleSearch", "urn:GoogleSearch"));
request.addMethodArgument("key", "", googleKey->text());
request.addMethodArgument("q", "", searchString->text());
request.addMethodArgument("start", "", 0);
request.addMethodArgument("maxResults", "", 10);
request.addMethodArgument("filter", "", false, 0);
request.addMethodArgument("restrict", "", "");
request.addMethodArgument("safeSearch", "", false, 0);
request.addMethodArgument("lr", "", "");
request.addMethodArgument("ie", "", "latin1");
request.addMethodArgument("oe", "", "latin1");
// Submit the method request to the web service.
http.submitRequest(request, "/search/beta2");
// Set the cursor to wait mode.
QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
}
void Google::getResponse()
{
// Set cursor back to normal shape.
QApplication::restoreOverrideCursor();
// Reset resultView.
resultView->clear();
// Get the response, check for error.
const QtSoapMessage &resp = http.getResponse();
if (resp.isFault()) {
resultView->setHtml(tr("<b>Query failed</b>: ")
+ resp.faultString().value().toString());
return;
}
// Extract the return value from this method response, check for
// errors.
const QtSoapType &res = resp.returnValue();
if (!res.isValid()) {
resultView->append(tr("Invalid return value"));
return;
}
// Generate resultView output. Make it resemble the actual web
// output from http://www.google.com/.
QString header(tr("Searched the web for <b>%1</b>, results %2 - %3 "
"of about %4. Search took %5 seconds.<br><hr>")
.arg(res["searchQuery"].toString())
.arg(res["startIndex"].toInt())
.arg(res["endIndex"].toInt())
.arg(res["estimatedTotalResultsCount"].toInt())
.arg(res["searchTime"].value().toDouble(), 0, 'f', 2));
const QtSoapType &resultElements = res["resultElements"];
QString allElements;
for (int i = 0; i < resultElements.count(); ++i) {
const QtSoapType &resultElement = res["resultElements"][i];
QString cat = resultElement["directoryCategory"]["fullViewableName"].toString();
QString summary = resultElement["summary"].toString();
QString title = resultElement["title"].toString();
QString snippet = resultElement["snippet"].toString();
QString url = resultElement["URL"].toString();
QString cachedSize = resultElement["cachedSize"].toString();
QString thisElement = "<br>";
if (!title.isEmpty()) {
thisElement += "<font color=\"#0000FF\"><b><u>"
+ title + "</u></b></font><br>";
} else {
thisElement += "<font color=\"#0000FF\"><b><u>"
+ url + "</u></b></font><br>";
}
if (!snippet.isEmpty())
thisElement += snippet + "<br>";
if (!summary.isEmpty()) {
thisElement += "<font color=\"#808080\">Description:</font> "
+ summary + "<br>";
}
if (!cat.isEmpty()) {
thisElement += "<font color=\"#808080\">Category: <u>"
+ cat + "</u></font><br>";
}
if (!title.isEmpty()) {
thisElement += "<font color=\"#008000\"><u>" + url
+ "</u> - " + cachedSize + "</font><br>";
}
allElements += thisElement;
}
// Update the resultView.
resultView->setHtml(header + allElements);
}
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