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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qquickwebenginefaviconprovider_p_p.h"
#include "qquickwebengineprofile.h"
#include "qquickwebenginesettings_p.h"
#include "qquickwebengineview_p_p.h"
#include "profile_adapter.h"
#include "web_contents_adapter.h"
#include <QtCore/qmimedatabase.h>
#include <QtCore/qtimer.h>
#include <QtGui/qicon.h>
#include <QtGui/qpixmap.h>
QT_BEGIN_NAMESPACE
static inline unsigned area(const QSize &size)
{
return size.width() * size.height();
}
static QSize largestSize(const QList<QSize> &availableSizes)
{
QSize result;
for (const QSize &size : availableSizes) {
if (area(size) > area(result))
result = size;
}
return result;
}
static QSize fitSize(const QList<QSize> &availableSizes, const QSize &requestedSize)
{
Q_ASSERT(availableSizes.size());
QSize result = largestSize(availableSizes);
if (availableSizes.size() == 1 || area(requestedSize) >= area(result))
return result;
for (const QSize &size : availableSizes) {
if (area(size) == area(requestedSize))
return size;
if (area(requestedSize) < area(size) && area(size) < area(result))
result = size;
}
return result;
}
static QPixmap extractPixmap(const QIcon &icon, const QSize &requestedSize)
{
Q_ASSERT(!icon.isNull());
// If source size is not specified, use the largest icon
if (!requestedSize.isValid())
return icon.pixmap(largestSize(icon.availableSizes()), 1.0).copy();
const QSize &size = fitSize(icon.availableSizes(), requestedSize);
const QPixmap &iconPixmap = icon.pixmap(size, 1.0);
return iconPixmap.scaled(requestedSize, Qt::KeepAspectRatio, Qt::SmoothTransformation).copy();
}
static bool isIconURL(const QUrl &url)
{
QMimeType mimeType = QMimeDatabase().mimeTypeForFile(url.path(), QMimeDatabase::MatchExtension);
// Check file extension.
if (mimeType.name().startsWith(QLatin1String("image")))
return true;
// Check if it is an image data: URL.
if (url.scheme() == QLatin1String("data") && url.path().startsWith(QLatin1String("image")))
return true;
return false;
}
static QQuickWebEngineView *findViewById(const QString &id, QList<QQuickWebEngineView *> *views)
{
QQuickWebEngineView *result = nullptr;
for (QQuickWebEngineView *view : *views) {
if (isIconURL(QUrl(id))) {
if (view->icon() == QQuickWebEngineFaviconProvider::faviconProviderUrl(QUrl(id))) {
result = view;
break;
}
} else if (view->url() == QUrl(id)) {
result = view;
break;
}
}
return result;
}
FaviconImageResponseRunnable::FaviconImageResponseRunnable(const QString &id,
const QSize &requestedSize,
QList<QQuickWebEngineView *> *views)
: m_id(id), m_requestedSize(requestedSize), m_views(views)
{
}
void FaviconImageResponseRunnable::run()
{
if (tryNextView() == -1) {
// There is no non-otr view to access icon database.
Q_EMIT done(QPixmap());
}
}
void FaviconImageResponseRunnable::iconRequestDone(const QIcon &icon)
{
if (icon.isNull()) {
if (tryNextView() == -1) {
// Ran out of views.
Q_EMIT done(QPixmap());
}
return;
}
Q_EMIT done(extractPixmap(icon, m_requestedSize).copy());
}
int FaviconImageResponseRunnable::tryNextView()
{
for (; m_nextViewIndex < m_views->size(); ++m_nextViewIndex) {
QQuickWebEngineView *view = m_views->at(m_nextViewIndex);
if (view->profile()->isOffTheRecord())
continue;
requestIconOnUIThread(view);
return m_nextViewIndex++;
}
return -1;
}
void FaviconImageResponseRunnable::requestIconOnUIThread(QQuickWebEngineView *view)
{
QTimer *timer = new QTimer();
timer->moveToThread(qApp->thread());
timer->setSingleShot(true);
QObject::connect(timer, &QTimer::timeout, [this, view, timer]() {
QtWebEngineCore::ProfileAdapter *profileAdapter = view->d_ptr->profileAdapter();
bool touchIconsEnabled = view->profile()->settings()->touchIconsEnabled();
if (isIconURL(QUrl(m_id))) {
profileAdapter->requestIconForIconURL(QUrl(m_id),
qMax(m_requestedSize.width(), m_requestedSize.height()),
touchIconsEnabled,
[this](const QIcon &icon, const QUrl &) { iconRequestDone(icon); });
} else {
profileAdapter->requestIconForPageURL(QUrl(m_id),
qMax(m_requestedSize.width(), m_requestedSize.height()),
touchIconsEnabled,
[this](const QIcon &icon, const QUrl &, const QUrl &) { iconRequestDone(icon); });
}
timer->deleteLater();
});
QMetaObject::invokeMethod(timer, "start", Qt::QueuedConnection, Q_ARG(int, 0));
}
FaviconImageResponse::FaviconImageResponse()
{
Q_EMIT finished();
}
FaviconImageResponse::FaviconImageResponse(const QString &id, const QSize &requestedSize,
QList<QQuickWebEngineView *> *views, QThreadPool *pool)
{
if (QQuickWebEngineView *view = findViewById(id, views)) {
QTimer *timer = new QTimer();
timer->moveToThread(qApp->thread());
timer->setSingleShot(true);
QObject::connect(timer, &QTimer::timeout, [this, id, requestedSize, views, pool, view, timer]() {
QIcon icon = view->d_ptr->adapter->icon();
if (icon.isNull())
startRunnable(id, requestedSize, views, pool);
else
handleDone(extractPixmap(icon, requestedSize).copy());
timer->deleteLater();
});
QMetaObject::invokeMethod(timer, "start", Qt::QueuedConnection, Q_ARG(int, 0));
} else {
startRunnable(id, requestedSize, views, pool);
}
}
FaviconImageResponse::~FaviconImageResponse() { }
void FaviconImageResponse::handleDone(QPixmap pixmap)
{
if (m_runnable)
delete m_runnable;
m_image = pixmap.toImage();
Q_EMIT finished();
}
QQuickTextureFactory *FaviconImageResponse::textureFactory() const
{
return QQuickTextureFactory::textureFactoryForImage(m_image);
}
void FaviconImageResponse::startRunnable(const QString &id, const QSize &requestedSize,
QList<QQuickWebEngineView *> *views, QThreadPool *pool)
{
m_runnable = new FaviconImageResponseRunnable(id, requestedSize, views);
m_runnable->setAutoDelete(false);
connect(m_runnable, &FaviconImageResponseRunnable::done, this,
&FaviconImageResponse::handleDone);
pool->start(m_runnable);
}
QString QQuickWebEngineFaviconProvider::identifier()
{
return QStringLiteral("favicon");
}
QUrl QQuickWebEngineFaviconProvider::faviconProviderUrl(const QUrl &url)
{
if (url.isEmpty())
return url;
QUrl providerUrl;
providerUrl.setScheme(QStringLiteral("image"));
providerUrl.setHost(identifier());
providerUrl.setPath(
QStringLiteral("/%1").arg(url.toString(QUrl::RemoveQuery | QUrl::RemoveFragment)));
if (url.hasQuery())
providerUrl.setQuery(url.query(QUrl::FullyDecoded));
if (url.hasFragment())
providerUrl.setFragment(url.fragment(QUrl::FullyDecoded));
return providerUrl;
}
QQuickWebEngineFaviconProvider::QQuickWebEngineFaviconProvider() { }
QQuickWebEngineFaviconProvider::~QQuickWebEngineFaviconProvider() { }
QQuickImageResponse *
QQuickWebEngineFaviconProvider::requestImageResponse(const QString &id, const QSize &requestedSize)
{
if (m_views.empty())
return new FaviconImageResponse;
FaviconImageResponse *response = new FaviconImageResponse(id, requestedSize, &m_views, &m_pool);
return response;
}
QT_END_NAMESPACE
#include "moc_qquickwebenginefaviconprovider_p_p.cpp"
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