1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/*
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>
using namespace WebKit;
QWebIconImageProvider::QWebIconImageProvider()
: QQuickImageProvider(QQuickImageProvider::Image)
{
}
QWebIconImageProvider::~QWebIconImageProvider()
{
}
QUrl QWebIconImageProvider::iconURLForPageURLInContext(const QString &pageURL, QtWebContext* context)
{
QtWebIconDatabaseClient* iconDatabase = context->iconDatabase();
// Verify that the image data is actually available before reporting back
// a url, since clients assume that the url can be used directly.
if (iconDatabase->iconImageForPageURL(pageURL).isNull())
return QUrl();
QUrl url;
url.setScheme(QStringLiteral("image"));
url.setHost(QWebIconImageProvider::identifier());
// Make sure that QML doesn't show a cached previous version of the icon after it changed.
url.setPath(QStringLiteral("/%1").arg(QtWebIconDatabaseClient::updateID()));
// FIXME: Use QUrl::DecodedMode when landed in Qt
url.setFragment(QString::fromLatin1(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;
}
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::defaultContext()->iconDatabase();
Q_ASSERT(iconDatabase);
QImage icon = iconDatabase->iconImageForPageURL(pageURL);
Q_ASSERT(!icon.isNull());
if (size)
*size = icon.size();
if (requestedSize.isValid())
return icon.scaled(requestedSize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
return icon;
}
|
