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/*
Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "qwebiconimageprovider_p.h"
#include "QtWebContext.h"
#include "QtWebIconDatabaseClient.h"
#include <QtCore/QUrl>
#include <QtGui/QImage>
#include <wtf/text/StringHash.h>
#include <wtf/text/WTFString.h>
using namespace WebKit;
QWebIconImageProvider::QWebIconImageProvider()
: QQuickImageProvider(QQuickImageProvider::Image)
{
}
QWebIconImageProvider::~QWebIconImageProvider()
{
}
WTF::String QWebIconImageProvider::iconURLForPageURLInContext(const WTF::String &pageURL, QtWebContext* context)
{
QtWebIconDatabaseClient* iconDatabase = context->iconDatabase();
WTF::String iconURL = iconDatabase->iconForPageURL(pageURL);
if (iconURL.isEmpty())
return String();
QUrl url;
url.setScheme(QStringLiteral("image"));
url.setHost(QWebIconImageProvider::identifier());
// Make sure that QML doesn't show cached versions of the previous icon if the icon location changed.
url.setPath(QLatin1Char('/') + QString::number(WTF::StringHash::hash(iconURL)));
// FIXME: Use QUrl::DecodedMode when landed in Qt
url.setFragment(QString::fromLatin1(QByteArray(QString(pageURL).toUtf8()).toBase64()));
// FIXME: We can't know when the icon url is no longer in use,
// so we never release these icons. At some point we might want
// to introduce expiry of icons to elevate this issue.
iconDatabase->retainIconForPageURL(pageURL);
return url.toString(QUrl::FullyEncoded);
}
QImage QWebIconImageProvider::requestImage(const QString& id, QSize* size, const QSize& requestedSize)
{
QString pageURL = QString::fromUtf8(QByteArray::fromBase64(id.midRef(id.indexOf('#') + 1).toLatin1()));
QtWebIconDatabaseClient* iconDatabase = QtWebContext::iconDatabase();
if (!iconDatabase)
return QImage();
QImage icon = requestedSize.isValid() ? iconDatabase->iconImageForPageURL(pageURL, requestedSize) : iconDatabase->iconImageForPageURL(pageURL);
ASSERT(!icon.isNull());
if (size)
*size = icon.size();
return icon;
}
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