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/***************************************************************************
copyright : (C) 2004 Nathan Toone <nathan@toonetown.com>
copyright : (C) 2007 Michael Pyne <michael.pyne@kdemail.com>
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include <qhttp.h>
#include <qdom.h>
#include <qwaitcondition.h>
#include <kapplication.h>
#include <kstatusbar.h>
#include <kdebug.h>
#include <kmainwindow.h>
#include <klocale.h>
#include <kinputdialog.h>
#include <kurl.h>
#include "covermanager.h"
#include "webimagefetcher.h"
#include "webimagefetcherdialog.h"
#include "tag.h"
WebImage::WebImage()
{
}
WebImage::WebImage(const QString &imageURL, const QString &thumbURL,
int width, int height) :
m_imageURL(imageURL),
m_thumbURL(thumbURL),
m_size(QString("\n%1 x %2").arg(width).arg(height))
{
}
WebImageFetcher::WebImageFetcher(QObject *parent)
: QObject(parent),
m_connection(new QHttp(this)),
m_connectionId(-1),
m_dialog(0)
{
connect(m_connection, SIGNAL(requestFinished(int,bool)), SLOT(slotWebRequestFinished(int,bool)));
}
WebImageFetcher::~WebImageFetcher()
{
delete m_dialog;
}
void WebImageFetcher::setFile(const FileHandle &file)
{
m_file = file;
m_searchString = QString(file.tag()->artist() + ' ' + file.tag()->album());
if(m_dialog)
m_dialog->setFile(file);
}
void WebImageFetcher::abortSearch()
{
m_connection->abort();
}
void WebImageFetcher::chooseCover()
{
slotLoadImageURLs();
}
void WebImageFetcher::slotLoadImageURLs()
{
m_imageList.clear();
KURL url("http://search.yahooapis.com/ImageSearchService/V1/imageSearch");
url.addQueryItem("appid", "org.kde.juk/kde3");
url.addQueryItem("query", m_searchString);
url.addQueryItem("results", "25");
kdDebug(65432) << "Using request " << url.encodedPathAndQuery() << endl;
m_connection->setHost(url.host());
m_connectionId = m_connection->get(url.encodedPathAndQuery());
// Wait for the results...
}
void WebImageFetcher::slotWebRequestFinished(int id, bool error)
{
if(id != m_connectionId)
return;
if(error) {
kdError(65432) << "Error reading image results from Yahoo!\n";
kdError(65432) << m_connection->errorString() << endl;
return;
}
QDomDocument results("ResultSet");
QString errorStr;
int errorCol, errorLine;
if(!results.setContent(m_connection->readAll(), &errorStr, &errorLine, &errorCol)) {
kdError(65432) << "Unable to create XML document from Yahoo results.\n";
kdError(65432) << "Line " << errorLine << ", " << errorStr << endl;
return;
}
QDomNode n = results.documentElement();
bool hasNoResults = false;
if(n.isNull()) {
kdDebug(65432) << "No document root in XML results??\n";
hasNoResults = true;
}
else {
QDomElement result = n.toElement();
if(result.attribute("totalResultsReturned").toInt() == 0)
kdDebug(65432) << "Search returned " << result.attribute("totalResultsAvailable") << " results.\n";
if(result.isNull() || !result.hasAttribute("totalResultsReturned") ||
result.attribute("totalResultsReturned").toInt() == 0)
{
hasNoResults = true;
}
}
if(hasNoResults)
{
kdDebug(65432) << "Search returned no results.\n";
requestNewSearchTerms(true /* no results */);
return;
}
// Go through each of the top (result) nodes
n = n.firstChild();
while(!n.isNull()) {
QDomNode resultUrl = n.namedItem("Url");
QDomNode thumbnail = n.namedItem("Thumbnail");
QDomNode height = n.namedItem("Height");
QDomNode width = n.namedItem("Width");
// We have the necessary info, move to next node before we forget.
n = n.nextSibling();
if(resultUrl.isNull() || thumbnail.isNull() || height.isNull() || width.isNull()) {
kdError(65432) << "Invalid result returned, skipping.\n";
continue;
}
m_imageList.append(
WebImage(
resultUrl.toElement().text(),
thumbnail.namedItem("Url").toElement().text(),
width.toElement().text().toInt(),
height.toElement().text().toInt()
)
);
}
// Have results, show them and pick one.
if(!m_dialog) {
m_dialog = new WebImageFetcherDialog(m_imageList, m_file, 0);
m_dialog->setModal(true);
connect(m_dialog, SIGNAL(coverSelected()), SLOT(slotCoverChosen()));
connect(m_dialog, SIGNAL(newSearchRequested()), SLOT(slotNewSearch()));
}
m_dialog->refreshScreen(m_imageList);
m_dialog->show();
}
void WebImageFetcher::slotCoverChosen()
{
QPixmap pixmap = m_dialog->result();
if(pixmap.isNull()) {
kdError(65432) << "Selected pixmap is null for some reason.\n";
return;
}
kdDebug(65432) << "Adding new cover for " << m_file.tag()->fileName() << endl;
coverKey newId = CoverManager::addCover(pixmap, m_file.tag()->artist(), m_file.tag()->album());
emit signalCoverChanged(newId);
}
void WebImageFetcher::slotNewSearch()
{
requestNewSearchTerms();
}
void WebImageFetcher::displayWaitMessage()
{
KStatusBar *statusBar = static_cast<KMainWindow *>(kapp->mainWidget())->statusBar();
statusBar->message(i18n("Searching for Images. Please Wait..."));
slotLoadImageURLs();
statusBar->clear();
}
void WebImageFetcher::requestNewSearchTerms(bool noResults)
{
bool ok;
QString search = KInputDialog::getText(i18n("Cover Downloader"),
noResults ?
i18n("No matching images found, please enter new search terms:") :
i18n("Enter new search terms:"),
m_searchString, &ok);
if(ok && !search.isEmpty()) {
m_searchString = search;
displayWaitMessage(); // This kicks off the new search.
}
}
#include "webimagefetcher.moc"
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