formextractor.cpp Example File

webkitwidgets/formextractor/formextractor.cpp
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** 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 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 "formextractor.h"

#include <QWebElement>

FormExtractor::FormExtractor(QWidget *parent, Qt::WindowFlags flags)
    : QWidget(parent, flags)
{
    ui.setupUi(this);
    ui.webView->setUrl(QUrl("qrc:/form.html"));
    connect(ui.webView->page()->mainFrame(), SIGNAL(javaScriptWindowObjectCleared()),
            this, SLOT(populateJavaScriptWindowObject()));
    resize(300, 300);
}

FormExtractor::~FormExtractor()
{
}

void FormExtractor::submit()
{
    QWebFrame *frame = ui.webView->page()->mainFrame();

    QWebElement firstName = frame->findFirstElement("#firstname");
    QWebElement lastName = frame->findFirstElement("#lastname");
    QWebElement maleGender = frame->findFirstElement("#genderMale");
    QWebElement femaleGender = frame->findFirstElement("#genderFemale");
    QWebElement updates = frame->findFirstElement("#updates");

    ui.firstNameEdit->setText(firstName.evaluateJavaScript("this.value").toString());
    ui.lastNameEdit->setText(lastName.evaluateJavaScript("this.value").toString());

    if (maleGender.evaluateJavaScript("this.checked").toBool())
        ui.genderEdit->setText(maleGender.evaluateJavaScript("this.value").toString());
    else if (femaleGender.evaluateJavaScript("this.checked").toBool())
        ui.genderEdit->setText(femaleGender.evaluateJavaScript("this.value").toString());

    if (updates.evaluateJavaScript("this.checked").toBool())
        ui.updatesEdit->setText("Yes");
    else
        ui.updatesEdit->setText("No");
}

void FormExtractor::populateJavaScriptWindowObject()
{
    ui.webView->page()->mainFrame()->addToJavaScriptWindowObject("formExtractor", this);
}