/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWebEngine module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qwebenginesettings.h"
#include "qwebenginesettings_p.h"

#include <QDebug>

QT_BEGIN_NAMESPACE

static WebEngineSettings::Attribute toWebEngineAttribute(QWebEngineSettings::WebAttribute attribute) {
    switch (attribute) {
    case QWebEngineSettings::AutoLoadImages:
        return WebEngineSettings::AutoLoadImages;
    case QWebEngineSettings::JavascriptEnabled:
        return WebEngineSettings::JavascriptEnabled;
    case QWebEngineSettings::JavascriptCanOpenWindows:
        return WebEngineSettings::JavascriptCanOpenWindows;
    case QWebEngineSettings::JavascriptCanAccessClipboard:
        return WebEngineSettings::JavascriptCanAccessClipboard;
    case QWebEngineSettings::LinksIncludedInFocusChain:
        return WebEngineSettings::LinksIncludedInFocusChain;
    case QWebEngineSettings::LocalStorageEnabled:
        return WebEngineSettings::LocalStorageEnabled;
    case QWebEngineSettings::LocalContentCanAccessRemoteUrls:
        return WebEngineSettings::LocalContentCanAccessRemoteUrls;
    case QWebEngineSettings::XSSAuditingEnabled:
        return WebEngineSettings::XSSAuditingEnabled;
    case QWebEngineSettings::SpatialNavigationEnabled:
        return WebEngineSettings::SpatialNavigationEnabled;
    case QWebEngineSettings::LocalContentCanAccessFileUrls:
        return WebEngineSettings::LocalContentCanAccessFileUrls;
    case QWebEngineSettings::HyperlinkAuditingEnabled:
        return WebEngineSettings::HyperlinkAuditingEnabled;
    case QWebEngineSettings::ScrollAnimatorEnabled:
        return WebEngineSettings::ScrollAnimatorEnabled;
    case QWebEngineSettings::ErrorPageEnabled:
        return WebEngineSettings::ErrorPageEnabled;
    default:
        return WebEngineSettings::UnsupportedInCoreSettings;
    }
}

Q_GLOBAL_STATIC(QList<QWebEngineSettingsPrivate*>, allSettings)

class QWebEngineGlobalSettings {
    QWebEngineSettings globalSettings;
public:
    QWebEngineGlobalSettings() {
        // globalSettings shouldn't be in that list.
        allSettings->removeAll(globalSettings.d_func());
        globalSettings.d_func()->coreSettings->initDefaults();
    }

    QWebEngineSettings *data() { return &globalSettings; }
};

Q_GLOBAL_STATIC(QWebEngineGlobalSettings, globalInstance)

QWebEngineSettingsPrivate::QWebEngineSettingsPrivate()
    : coreSettings(new WebEngineSettings(this))
{
}

void QWebEngineSettingsPrivate::apply()
{
    coreSettings->scheduleApply();
    QWebEngineSettingsPrivate *globals = QWebEngineSettings::globalSettings()->d_func();
    Q_ASSERT((this == globals) != (allSettings->contains(this)));
    if (this == globals) {
        Q_FOREACH (QWebEngineSettingsPrivate *settings, *allSettings)
            settings->coreSettings->scheduleApply();
    }
}

WebEngineSettings *QWebEngineSettingsPrivate::fallbackSettings() const {
    return QWebEngineSettings::globalSettings()->d_func()->coreSettings.data();
}

QWebEngineSettings *QWebEngineSettings::globalSettings()
{
    return globalInstance()->data();
}

ASSERT_ENUMS_MATCH(WebEngineSettings::StandardFont, QWebEngineSettings::StandardFont)
ASSERT_ENUMS_MATCH(WebEngineSettings::FixedFont, QWebEngineSettings::FixedFont)
ASSERT_ENUMS_MATCH(WebEngineSettings::SerifFont, QWebEngineSettings::SerifFont)
ASSERT_ENUMS_MATCH(WebEngineSettings::SansSerifFont, QWebEngineSettings::SansSerifFont)
ASSERT_ENUMS_MATCH(WebEngineSettings::CursiveFont, QWebEngineSettings::CursiveFont)
ASSERT_ENUMS_MATCH(WebEngineSettings::FantasyFont, QWebEngineSettings::FantasyFont)

void QWebEngineSettings::setFontFamily(QWebEngineSettings::FontFamily which, const QString &family)
{
    Q_D(QWebEngineSettings);
    d->coreSettings->setFontFamily(static_cast<WebEngineSettings::FontFamily>(which), family);
}

QString QWebEngineSettings::fontFamily(QWebEngineSettings::FontFamily which) const
{
    Q_D(const QWebEngineSettings);
    return d->coreSettings->fontFamily(static_cast<WebEngineSettings::FontFamily>(which));
}

void QWebEngineSettings::resetFontFamily(QWebEngineSettings::FontFamily which)
{
    Q_D(QWebEngineSettings);
    d->coreSettings->resetFontFamily(static_cast<WebEngineSettings::FontFamily>(which));
}

ASSERT_ENUMS_MATCH(WebEngineSettings::DefaultFixedFontSize, QWebEngineSettings::DefaultFixedFontSize)
ASSERT_ENUMS_MATCH(WebEngineSettings::DefaultFontSize, QWebEngineSettings::DefaultFontSize)
ASSERT_ENUMS_MATCH(WebEngineSettings::MinimumFontSize, QWebEngineSettings::MinimumFontSize)
ASSERT_ENUMS_MATCH(WebEngineSettings::MinimumLogicalFontSize, QWebEngineSettings::MinimumLogicalFontSize)

void QWebEngineSettings::setFontSize(QWebEngineSettings::FontSize type, int size)
{
    Q_D(const QWebEngineSettings);
    d->coreSettings->setFontSize(static_cast<WebEngineSettings::FontSize>(type), size);
}

int QWebEngineSettings::fontSize(QWebEngineSettings::FontSize type) const
{
    Q_D(const QWebEngineSettings);
    return d->coreSettings->fontSize(static_cast<WebEngineSettings::FontSize>(type));
}

void QWebEngineSettings::resetFontSize(QWebEngineSettings::FontSize type)
{
    Q_D(QWebEngineSettings);
    d->coreSettings->resetFontSize(static_cast<WebEngineSettings::FontSize>(type));
}


QWebEngineSettings::QWebEngineSettings()
    : d_ptr(new QWebEngineSettingsPrivate)
{
    Q_D(QWebEngineSettings);
    allSettings->append(d);
    d->coreSettings->scheduleApply();
}


QWebEngineSettings::~QWebEngineSettings()
{
    Q_D(QWebEngineSettings);
    allSettings->removeAll(d);
}

void QWebEngineSettings::setDefaultTextEncoding(const QString &encoding)
{
    Q_D(QWebEngineSettings);
    d->coreSettings->setDefaultTextEncoding(encoding);
}

QString QWebEngineSettings::defaultTextEncoding() const
{
    Q_D(const QWebEngineSettings);
    return d->coreSettings->defaultTextEncoding();
}

void QWebEngineSettings::setAttribute(QWebEngineSettings::WebAttribute attr, bool on)
{
    Q_D(QWebEngineSettings);
    WebEngineSettings::Attribute webEngineAttribute = toWebEngineAttribute(attr);
    if (webEngineAttribute != WebEngineSettings::UnsupportedInCoreSettings)
        return d->coreSettings->setAttribute(webEngineAttribute, on);
    qDebug() << Q_FUNC_INFO << "Missing support for:" << attr;
}

bool QWebEngineSettings::testAttribute(QWebEngineSettings::WebAttribute attr) const
{
    Q_D(const QWebEngineSettings);
    WebEngineSettings::Attribute webEngineAttribute = toWebEngineAttribute(attr);
    if (webEngineAttribute != WebEngineSettings::UnsupportedInCoreSettings)
        return d->coreSettings->testAttribute(webEngineAttribute);



    qDebug() << Q_FUNC_INFO << "Missing support for:" << attr;
    return false;
}

void QWebEngineSettings::resetAttribute(QWebEngineSettings::WebAttribute attr)
{
    setAttribute(attr, globalSettings()->testAttribute(attr));
}

QT_END_NAMESPACE