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/***************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Copyright (C) 2013 BlackBerry Limited. All rights reserved.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qquickstyleselector_p.h"
#include "qquickstyleselector_p_p.h"
#include "qquickstyle.h"
#include "qquickstyle_p.h"
#include <QtCore/qdir.h>
#include <QtCore/qfile.h>
#include <QtCore/qfileinfo.h>
#include <QtCore/qsysinfo.h>
#include <QtCore/qlocale.h>
#include <QtQml/qqmlfile.h>
#include <QtCore/private/qfileselector_p.h>
#include <QtGui/private/qguiapplication_p.h>
QT_BEGIN_NAMESPACE
static bool isLocalScheme(const QString &scheme)
{
bool local = scheme == QLatin1String("qrc");
#ifdef Q_OS_ANDROID
local |= scheme == QLatin1String("assets");
#endif
return local;
}
static QString ensureSlash(const QString &path)
{
if (path.endsWith(QLatin1Char('/')))
return path;
return path + QLatin1Char('/');
}
static QStringList prefixedPlatformSelectors(const QChar &prefix)
{
QStringList selectors = QFileSelectorPrivate::platformSelectors();
for (int i = 0; i < selectors.count(); ++i)
selectors[i].prepend(prefix);
return selectors;
}
static QStringList allSelectors(const QString &style = QString())
{
static const QStringList platformSelectors = prefixedPlatformSelectors(QLatin1Char('+'));
QStringList selectors = platformSelectors;
const QString locale = QLocale().name();
if (!locale.isEmpty())
selectors += QLatin1Char('+') + locale;
if (!style.isEmpty())
selectors.prepend(style);
return selectors;
}
QString QQuickStyleSelectorPrivate::select(const QString &filePath) const
{
QFileInfo fi(filePath);
// If file doesn't exist, don't select
if (!fi.exists())
return filePath;
const QString path = fi.path();
const QString ret = QFileSelectorPrivate::selectionHelper(path.isEmpty() ? QString() : path + QLatin1Char('/'),
fi.fileName(), allSelectors(styleName), QChar());
if (!ret.isEmpty())
return ret;
return filePath;
}
QString QQuickStyleSelectorPrivate::trySelect(const QString &filePath, const QString &fallback) const
{
QFileInfo fi(filePath);
if (!fi.exists())
return fallback;
// the path contains the name of the custom/fallback style, so exclude it from
// the selectors. the rest of the selectors (os, locale) are still valid, though.
const QString path = fi.path();
const QString selectedPath = QFileSelectorPrivate::selectionHelper(path.isEmpty() ? QString() : path + QLatin1Char('/'),
fi.fileName(), allSelectors(), QChar());
if (selectedPath.startsWith(QLatin1Char(':')))
return QLatin1String("qrc") + selectedPath;
return QUrl::fromLocalFile(QFileInfo(selectedPath).absoluteFilePath()).toString();
}
QQuickStyleSelector::QQuickStyleSelector() : d_ptr(new QQuickStyleSelectorPrivate)
{
Q_D(QQuickStyleSelector);
d->styleName = QQuickStyle::name();
d->stylePath = QQuickStyle::path();
}
QQuickStyleSelector::~QQuickStyleSelector()
{
}
QUrl QQuickStyleSelector::baseUrl() const
{
Q_D(const QQuickStyleSelector);
return d->baseUrl;
}
void QQuickStyleSelector::setBaseUrl(const QUrl &url)
{
Q_D(QQuickStyleSelector);
d->baseUrl = url;
d->basePath = QQmlFile::urlToLocalFileOrQrc(url.toString(QUrl::StripTrailingSlash) + QLatin1Char('/'));
}
QString QQuickStyleSelector::select(const QString &fileName) const
{
Q_D(const QQuickStyleSelector);
// 1) try selecting from a custom style path, for example ":/mystyle"
if (QQuickStylePrivate::isCustomStyle()) {
// NOTE: this path may contain a subset of controls
const QString selectedPath = d->trySelect(ensureSlash(d->stylePath) + d->styleName + QLatin1Char('/') + fileName);
if (!selectedPath.isEmpty())
return selectedPath;
}
// 2) try selecting from the fallback style path, for example QT_INSTALL_QML/QtQuick/Controls.2/Material
const QString fallbackStyle = QQuickStylePrivate::fallbackStyle();
if (!fallbackStyle.isEmpty()) {
// NOTE: this path may also contain a subset of controls
const QString selectedPath = d->trySelect(ensureSlash(d->basePath) + fallbackStyle + QLatin1Char('/') + fileName);
if (!selectedPath.isEmpty())
return selectedPath;
}
// 3) fallback to the default style that is guaranteed to contain all controls
QUrl url(ensureSlash(d->baseUrl.toString()) + fileName);
if (isLocalScheme(url.scheme())) {
QString equivalentPath = QLatin1Char(':') + url.path();
QString selectedPath = d->select(equivalentPath);
url.setPath(selectedPath.remove(0, 1));
} else if (url.isLocalFile()) {
url = QUrl::fromLocalFile(d->select(url.toLocalFile()));
}
return url.toString(QUrl::NormalizePathSegments);
}
QT_END_NAMESPACE
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