Archived:Load a Selected Web Search Engine in a QWebView

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Qt Quick should be used for all UI development on mobile devices. The approach described in this article (based on QWidget) is deprecated.

Article Metadata

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Tested with

Devices(s): S60 Emulator

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Compatibility

Platform(s): S60 3rd Edition, FP1, FP2
S60 5th Edition

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Article

Keywords: QPushButton,QWebView

Created: mind_freak (08 Jul 2009)

Last edited: hamishwillee (11 Oct 2012)

OverView

This article allows you to select a search engine from a list and enter text, then launches the search engine using a QWebView. The application is limited because after first search the native interface is no longer visible and we then need to use the search engine's web page directly.

This example makes the use of following classes:

• QWebView - Provides a widget that is used to view and edit web documents.
• QPushButton - Provides a command button to search.

Preconditions

• Download and Install the Qt SDK

source code

cpp file

#include "engine.h"
#include "ui_engine.h"
 
engine::engine(QWidget *parent)
    : QWidget(parent), ui(new Ui::engineClass)
{
    ui.setupUi(this);
    msg=new QMessageBox();
    ui.comboBox.addItem("--Select--");
    ui.comboBox.addItem("altavista.com");
    ui.comboBox.addItem("ask.com");
    ui.comboBox.addItem("google.com");
    ui.comboBox.addItem("goto.com");
    ui.comboBox.addItem("hotbot.com");
    ui.comboBox.addItem("looksmart.com");
    ui.comboBox.addItem("lycos.com");
    ui.comboBox.addItem("metacrawler.com");
    ui.webView.hide();
    ui.Bar.setValue(0);
    QObject::connect(ui.search,SIGNAL(clicked()),this,SLOT(viral()));
    QObject::connect(ui.webView,SIGNAL(loadProgress(int)),ui.Bar,SLOT(setValue(int)));
 
}
 
engine::~engine()
{
    delete ui;
}
void engine::viral()
{
 
    if(ui.comboBox.currentText()=="--Select--")
    {
        msg->setText("Please select Search Engine");
        msg->exec();
 
    }
    else if(ui.comboBox.currentText()=="altavista.com")//Search on specific website by comparing strings
    {
        ui.label.setText(ui.comboBox.currentText());
        ui.line.hide();
        ui.comboBox.hide();
        ui.search.hide();
        str="http://www.altavista.com/cgi-bin/query?pg=q&what=web&fmt=.&q=";
        str1=ui.line.text();
        str3=str+str1;
        ui.webView.show();
        ui.webView.load(QUrl(str3));
 
    }
    else if(ui.comboBox.currentText()=="ask.com")
    {
        ui.label.setText(ui.comboBox.currentText());
        ui.line.hide();
        ui.comboBox.hide();
        ui.search.hide();
        str="http://www.ask.com/main/askjeeves.asp?x=22&y=13&ask=";
        str1=ui.line.text();
        str3=str+str1;
        ui.webView.show();
        ui.webView.load(QUrl(str3));
    }
    else if(ui.comboBox.currentText()=="google.com")
    {
        ui.label.setText(ui.comboBox.currentText());
        ui.line.hide();
        ui.comboBox.hide();
        ui.search.hide();
        str="http://www.google.com/search?btnG=Google+Search&q=";
        str1=ui.line.text();
        str3=str+str1;
        ui.webView.show();
        ui.webView.load(QUrl(str3));
    }
    else if (ui.comboBox.currentText()=="goto.com")
    {
        ui.label.setText(ui.comboBox.currentText());
        ui.line.hide();
        ui.comboBox.hide();
        ui.search.hide();
        str="http://www.goto.com/d/search/?type=home&tm=1&Keywords=";
        str1=ui.line.text();
        str3=str+str1;
        ui.webView.show();
        ui.webView.load(QUrl(str3));
    }
    else if(ui.comboBox.currentText()=="hotbot.com")
    {
        ui.label.setText(ui.comboBox.currentText());
        ui.line.hide();
        ui.comboBox.hide();
        ui.search.hide();
        str="http://www.hotbot.com/search.html?SM=MC&_v=1.0&MT=";
        str1=ui.line.text();
        str3=str+str1;
        ui.webView.show();
        ui.webView.load(QUrl(str3));
    }
 
    else if(ui.comboBox.currentText()=="looksmart.com")
    {
        ui.label.setText(ui.comboBox.currentText());
        ui.line.hide();
        ui.comboBox.hide();
        ui.search.hide();
        str="http://www.looksmart.com/r_search?look=&key=";
        str1=ui.line.text();
        str3=str+str1;
        ui.webView.show();
        ui.webView.load(QUrl(str3));
    }
    else if(ui.comboBox.currentText()=="lycos.com")
    {
        ui.label.setText(ui.comboBox.currentText());
        ui.line.hide();
        ui.comboBox.hide();
        ui.search.hide();
        str="http://www.lycos.com/cgi-bin/pursuit?query=";
        str1=ui.line.text();
        str3=str+str1;
        ui.webView->show();
        ui->webView->load(QUrl(str3));
    }
    else if(ui->comboBox->currentText()=="metacrawler.com")
    {
        ui->label->setText(ui->comboBox->currentText());
        ui->line->hide();
        ui->comboBox->hide();
        ui->search->hide();
        str="http://www.metacrawler.com/cgi-bin/nph-metaquery.p?general=";
        str1=ui.line.text();
        str3=str+str1;
        ui.webView.show();
        ui.webView.load(QUrl(str3));
    }
    else
    {
 
        exit(1);
    }
 
 
}

Screenshot