source: trunk/examples/network/archivesearch/archivedialog.ui.h

/****************************************************************************
** $Id: archivedialog.ui.h 2 2005-11-16 15:49:26Z dmik $
**
** Copyright (C) 1992-2003 Trolltech AS.  All rights reserved.
**
** This file is part of an example program for Qt.  This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/

/****************************************************************************
** ui.h extension file, included from the uic-generated form implementation.
**
** If you wish to add, delete or rename functions or slots use
** Qt Designer which will update this file, preserving your code. Create an
** init() function in place of a constructor, and a destroy() function in
** place of a destructor.
*****************************************************************************/

void ArchiveDialog::init()
{
    connect(&articleSearcher, SIGNAL(done(bool)), this, SLOT(searchDone(bool)));
    connect(&articleFetcher, SIGNAL(done(bool)), this, SLOT(fetchDone(bool)));
    connect(myListView, SIGNAL(selectionChanged(QListViewItem*)), this, SLOT(fetch(QListViewItem*)));
    connect(myLineEdit, SIGNAL(returnPressed()), this, SLOT(search()));
    connect(myListView, SIGNAL(returnPressed(QListViewItem*)), this, SLOT(fetch(QListViewItem*)));
    connect(myPushButton, SIGNAL(clicked()), this, SLOT(close()));
}

void ArchiveDialog::fetch( QListViewItem *it )
{
    QUrl u(it->text(1));
    articleFetcher.setHost(u.host());
    articleFetcher.get(it->text(1));
}

void ArchiveDialog::fetchDone( bool error )
{
    if (error) {
        QMessageBox::critical(this, "Error fetching",
                              "An error occurred when fetching this document: "
                              + articleFetcher.errorString(),   
                              QMessageBox::Ok, QMessageBox::NoButton);
    } else {
        myTextBrowser->setText(articleFetcher.readAll());
    }
}

void ArchiveDialog::search()
{
    if (articleSearcher.state() == QHttp::HostLookup
        || articleSearcher.state() == QHttp::Connecting
        || articleSearcher.state() == QHttp::Sending
        || articleSearcher.state() == QHttp::Reading) {
        articleSearcher.abort();
    }
    
    if (myLineEdit->text() == "") {
        QMessageBox::critical(this, "Empty query",
                              "Please type a search string.",
                              QMessageBox::Ok, QMessageBox::NoButton);
    } else {
        QApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
    
        articleSearcher.setHost("www.trolltech.com");
    
        QHttpRequestHeader header("POST", "/search.html");
        header.setValue("Host", "www.trolltech.com");
        header.setContentType("application/x-www-form-urlencoded");
    
        QString encodedTopic = myLineEdit->text();
        QUrl::encode(encodedTopic);
        QString searchString = "qt-interest=on&search=" + encodedTopic;

        articleSearcher.request(header, searchString.utf8());
    }

}

void ArchiveDialog::searchDone( bool error )
{
    if (error) {
        QMessageBox::critical(this, "Error searching",
                              "An error occurred when searching: "
                              + articleSearcher.errorString(),
                              QMessageBox::Ok, QMessageBox::NoButton);
    } else {
        QString result(articleSearcher.readAll());
        
        QRegExp rx("<a href=\"(http://lists\\.trolltech\\.com/qt-interest/.*)\">(.*)</a>");
        rx.setMinimal(TRUE);
        int pos = 0;
        while (pos >= 0) {
            pos = rx.search(result, pos);
            if (pos > -1) {
                pos += rx.matchedLength();
                new QListViewItem(myListView, rx.cap(2), rx.cap(1));
            }
        }
    }
    
    QApplication::restoreOverrideCursor();
}