/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** 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 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 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 "qquickwebengineview_p.h"
#include "qquickwebengineview_p_p.h"

#include "browser_context_adapter.h"
#include "certificate_error_controller.h"
#include "javascript_dialog_controller.h"
#include "qquickwebenginehistory_p.h"
#include "qquickwebenginecertificateerror_p.h"
#include "qquickwebengineloadrequest_p.h"
#include "qquickwebenginenavigationrequest_p.h"
#include "qquickwebenginenewviewrequest_p.h"
#include "qquickwebengineprofile_p.h"
#include "qquickwebengineprofile_p_p.h"
#include "qquickwebenginesettings_p.h"
#include "qquickwebenginescript_p_p.h"

#ifdef ENABLE_QML_TESTSUPPORT_API
#include "qquickwebenginetestsupport_p.h"
#endif

#include "render_widget_host_view_qt_delegate_quick.h"
#include "render_widget_host_view_qt_delegate_quickwindow.h"
#include "ui_delegates_manager.h"
#include "user_script_controller_host.h"
#include "web_contents_adapter.h"
#include "web_engine_error.h"
#include "web_engine_settings.h"
#include "web_engine_visited_links_manager.h"

#include <QGuiApplication>
#include <QQmlComponent>
#include <QQmlContext>
#include <QQmlEngine>
#include <QQmlProperty>
#include <QQmlWebChannel>
#include <QScreen>
#include <QStringBuilder>
#include <QUrl>
#ifndef QT_NO_ACCESSIBILITY
#include <private/qquickaccessibleattached_p.h>
#endif // QT_NO_ACCESSIBILITY

QT_BEGIN_NAMESPACE
using namespace QtWebEngineCore;

#ifndef QT_NO_ACCESSIBILITY
static QAccessibleInterface *webAccessibleFactory(const QString &, QObject *object)
{
    if (QQuickWebEngineView *v = qobject_cast<QQuickWebEngineView*>(object))
        return new QQuickWebEngineViewAccessible(v);
    return 0;
}
#endif // QT_NO_ACCESSIBILITY

QQuickWebEngineViewPrivate::QQuickWebEngineViewPrivate()
    : adapter(0)
    , e(new QQuickWebEngineViewExperimental(this))
    , v(new QQuickWebEngineViewport(this))
    , m_history(new QQuickWebEngineHistory(this))
    , m_profile(QQuickWebEngineProfile::defaultProfile())
    , m_settings(new QQuickWebEngineSettings(m_profile->settings()))
#ifdef ENABLE_QML_TESTSUPPORT_API
    , m_testSupport(0)
#endif
    , contextMenuExtraItems(0)
    , loadProgress(0)
    , m_isFullScreen(false)
    , isLoading(false)
    , devicePixelRatio(QGuiApplication::primaryScreen()->devicePixelRatio())
    , m_dpiScale(1.0)
{
    // The gold standard for mobile web content is 160 dpi, and the devicePixelRatio expected
    // is the (possibly quantized) ratio of device dpi to 160 dpi.
    // However GUI toolkits on non-iOS platforms may be using different criteria than relative
    // DPI (depending on the history of that platform), dictating the choice of
    // QScreen::devicePixelRatio().
    // Where applicable (i.e. non-iOS mobile platforms), override QScreen::devicePixelRatio
    // and instead use a reasonable default value for viewport.devicePixelRatio to avoid every
    // app having to use this experimental API.
    QString platform = qApp->platformName().toLower();
    if (platform == QLatin1String("qnx")) {
        qreal webPixelRatio = QGuiApplication::primaryScreen()->physicalDotsPerInch() / 160;

        // Quantize devicePixelRatio to increments of 1 to allow JS and media queries to select
        // 1x, 2x, 3x etc assets that fit an integral number of pixels.
        setDevicePixelRatio(qMax(1, qRound(webPixelRatio)));
    }
#ifndef QT_NO_ACCESSIBILITY
    QAccessible::installFactory(&webAccessibleFactory);
#endif // QT_NO_ACCESSIBILITY
}

QQuickWebEngineViewPrivate::~QQuickWebEngineViewPrivate()
{
}

QQuickWebEngineViewExperimental *QQuickWebEngineViewPrivate::experimental() const
{
    return e.data();
}

QQuickWebEngineViewport *QQuickWebEngineViewPrivate::viewport() const
{
    return v.data();
}

UIDelegatesManager *QQuickWebEngineViewPrivate::ui()
{
    Q_Q(QQuickWebEngineView);
    if (m_uIDelegatesManager.isNull())
        m_uIDelegatesManager.reset(new UIDelegatesManager(q));
    return m_uIDelegatesManager.data();
}

RenderWidgetHostViewQtDelegate *QQuickWebEngineViewPrivate::CreateRenderWidgetHostViewQtDelegate(RenderWidgetHostViewQtDelegateClient *client)
{
    return new RenderWidgetHostViewQtDelegateQuick(client, /*isPopup = */ false);
}

RenderWidgetHostViewQtDelegate *QQuickWebEngineViewPrivate::CreateRenderWidgetHostViewQtDelegateForPopup(RenderWidgetHostViewQtDelegateClient *client)
{
    Q_Q(QQuickWebEngineView);
    const bool hasWindowCapability = qApp->platformName().toLower() != QLatin1String("eglfs");
    RenderWidgetHostViewQtDelegateQuick *quickDelegate = new RenderWidgetHostViewQtDelegateQuick(client, /*isPopup = */ true);
    if (hasWindowCapability) {
        RenderWidgetHostViewQtDelegateQuickWindow *wrapperWindow = new RenderWidgetHostViewQtDelegateQuickWindow(quickDelegate);
        quickDelegate->setParentItem(wrapperWindow->contentItem());
        return wrapperWindow;
    }
    quickDelegate->setParentItem(q);
    return quickDelegate;
}

bool QQuickWebEngineViewPrivate::contextMenuRequested(const WebEngineContextMenuData &data)
{
    Q_Q(QQuickWebEngineView);

    QObject *menu = ui()->addMenu(0, QString(), data.pos);
    if (!menu)
        return false;

    // Populate our menu
    MenuItemHandler *item = 0;

    if (data.selectedText.isEmpty()) {
        item = new MenuItemHandler(menu);
        QObject::connect(item, &MenuItemHandler::triggered, q, &QQuickWebEngineView::goBack);
        ui()->addMenuItem(item, QObject::tr("Back"), QStringLiteral("go-previous"), q->canGoBack());

        item = new MenuItemHandler(menu);
        QObject::connect(item, &MenuItemHandler::triggered, q, &QQuickWebEngineView::goForward);
        ui()->addMenuItem(item, QObject::tr("Forward"), QStringLiteral("go-next"), q->canGoForward());

        item = new MenuItemHandler(menu);
        QObject::connect(item, &MenuItemHandler::triggered, q, &QQuickWebEngineView::reload);
        ui()->addMenuItem(item, QObject::tr("Reload"), QStringLiteral("view-refresh"));
    } else {
        item = new CopyMenuItem(menu, data.selectedText);
        ui()->addMenuItem(item, QObject::tr("Copy..."));
    }

    if (!data.linkText.isEmpty() && data.linkUrl.isValid()) {
        item = new NavigateMenuItem(menu, adapter, data.linkUrl);
        ui()->addMenuItem(item, QObject::tr("Navigate to..."));
        item = new CopyMenuItem(menu, data.linkUrl.toString());
        ui()->addMenuItem(item, QObject::tr("Copy link address"));
    }

    // FIXME: expose the context menu data as an attached property to make this more useful
    if (contextMenuExtraItems) {
        ui()->addMenuSeparator(menu);
        if (QObject* menuExtras = contextMenuExtraItems->create(qmlContext(q))) {
            menuExtras->setParent(menu);
            QQmlListReference entries(menu, defaultPropertyName(menu), qmlEngine(q));
            if (entries.isValid())
                entries.append(menuExtras);
        }
    }

    // Now fire the popup() method on the top level menu
    QMetaObject::invokeMethod(menu, "popup");
    return true;
}

void QQuickWebEngineViewPrivate::navigationRequested(int navigationType, const QUrl &url, int &navigationRequestAction, bool isMainFrame)
{
    Q_Q(QQuickWebEngineView);
    QQuickWebEngineNavigationRequest navigationRequest(url, static_cast<QQuickWebEngineView::NavigationType>(navigationType), isMainFrame);
    Q_EMIT q->navigationRequested(&navigationRequest);

    navigationRequestAction = navigationRequest.action();
}

void QQuickWebEngineViewPrivate::javascriptDialog(QSharedPointer<JavaScriptDialogController> dialog)
{
#ifdef ENABLE_QML_TESTSUPPORT_API
    if (m_testSupport) {
        m_testSupport->testDialog(dialog);
        return;
    }
#endif
    ui()->showDialog(dialog);
}

void QQuickWebEngineViewPrivate::allowCertificateError(const QSharedPointer<CertificateErrorController> &errorController)
{
    Q_Q(QQuickWebEngineView);

    QQuickWebEngineCertificateError *quickController = new QQuickWebEngineCertificateError(errorController);
    QQmlEngine::setObjectOwnership(quickController, QQmlEngine::JavaScriptOwnership);
    Q_EMIT q->certificateError(quickController);
    if (!quickController->deferred() && !quickController->answered())
        quickController->rejectCertificate();
    else
        m_certificateErrorControllers.append(errorController);
}

void QQuickWebEngineViewPrivate::runGeolocationPermissionRequest(const QUrl &url)
{
    Q_EMIT e->featurePermissionRequested(url, QQuickWebEngineViewExperimental::Geolocation);
}

void QQuickWebEngineViewPrivate::runFileChooser(FileChooserMode mode, const QString &defaultFileName, const QStringList &acceptedMimeTypes)
{
    ui()->showFilePicker(mode, defaultFileName, acceptedMimeTypes, adapter);
}

void QQuickWebEngineViewPrivate::passOnFocus(bool reverse)
{
    Q_Q(QQuickWebEngineView);
    // The child delegate currently has focus, find the next one from there and give it focus.
    QQuickItem *next = q->scopedFocusItem()->nextItemInFocusChain(!reverse);
    next->forceActiveFocus(reverse ? Qt::BacktabFocusReason : Qt::TabFocusReason);
}

void QQuickWebEngineViewPrivate::titleChanged(const QString &title)
{
    Q_Q(QQuickWebEngineView);
    Q_UNUSED(title);
    Q_EMIT q->titleChanged();
}

void QQuickWebEngineViewPrivate::urlChanged(const QUrl &url)
{
    Q_Q(QQuickWebEngineView);
    Q_UNUSED(url);
    explicitUrl = QUrl();
    Q_EMIT q->urlChanged();
}

void QQuickWebEngineViewPrivate::iconChanged(const QUrl &url)
{
    Q_Q(QQuickWebEngineView);
    icon = url;
    Q_EMIT q->iconChanged();
}

void QQuickWebEngineViewPrivate::loadProgressChanged(int progress)
{
    Q_Q(QQuickWebEngineView);
    loadProgress = progress;
    Q_EMIT q->loadProgressChanged();
}

void QQuickWebEngineViewPrivate::didUpdateTargetURL(const QUrl &hoveredUrl)
{
    Q_Q(QQuickWebEngineView);
    Q_EMIT q->linkHovered(hoveredUrl);
}

QRectF QQuickWebEngineViewPrivate::viewportRect() const
{
    Q_Q(const QQuickWebEngineView);
    return QRectF(q->x(), q->y(), q->width(), q->height());
}

qreal QQuickWebEngineViewPrivate::dpiScale() const
{
    return m_dpiScale;
}

void QQuickWebEngineViewPrivate::loadStarted(const QUrl &provisionalUrl, bool isErrorPage)
{
    Q_Q(QQuickWebEngineView);
    if (isErrorPage) {
#ifdef ENABLE_QML_TESTSUPPORT_API
        if (m_testSupport)
            m_testSupport->errorPage()->loadStarted(provisionalUrl);
#endif
        return;
    }

    isLoading = true;
    m_history->reset();
    m_certificateErrorControllers.clear();
    QQuickWebEngineLoadRequest loadRequest(provisionalUrl, QQuickWebEngineView::LoadStartedStatus);
    Q_EMIT q->loadingChanged(&loadRequest);
}

void QQuickWebEngineViewPrivate::loadCommitted()
{
    m_history->reset();
}

void QQuickWebEngineViewPrivate::loadVisuallyCommitted()
{
    Q_EMIT e->loadVisuallyCommitted();
}

Q_STATIC_ASSERT(static_cast<int>(WebEngineError::NoErrorDomain) == static_cast<int>(QQuickWebEngineView::NoErrorDomain));
Q_STATIC_ASSERT(static_cast<int>(WebEngineError::CertificateErrorDomain) == static_cast<int>(QQuickWebEngineView::CertificateErrorDomain));
Q_STATIC_ASSERT(static_cast<int>(WebEngineError::DnsErrorDomain) == static_cast<int>(QQuickWebEngineView::DnsErrorDomain));

void QQuickWebEngineViewPrivate::loadFinished(bool success, const QUrl &url, bool isErrorPage, int errorCode, const QString &errorDescription)
{
    Q_Q(QQuickWebEngineView);

    if (isErrorPage) {
#ifdef ENABLE_QML_TESTSUPPORT_API
        if (m_testSupport)
            m_testSupport->errorPage()->loadFinished(success, url);
#endif
        return;
    }

    isLoading = false;
    m_history->reset();
    if (errorCode == WebEngineError::UserAbortedError) {
        QQuickWebEngineLoadRequest loadRequest(url, QQuickWebEngineView::LoadStoppedStatus);
        Q_EMIT q->loadingChanged(&loadRequest);
        return;
    }
    if (success) {
        explicitUrl = QUrl();
        QQuickWebEngineLoadRequest loadRequest(url, QQuickWebEngineView::LoadSucceededStatus);
        Q_EMIT q->loadingChanged(&loadRequest);
        return;
    }

    Q_ASSERT(errorCode);
    QQuickWebEngineLoadRequest loadRequest(
        url,
        QQuickWebEngineView::LoadFailedStatus,
        errorDescription,
        errorCode,
        static_cast<QQuickWebEngineView::ErrorDomain>(WebEngineError::toQtErrorDomain(errorCode)));
    Q_EMIT q->loadingChanged(&loadRequest);
    return;
}

void QQuickWebEngineViewPrivate::focusContainer()
{
    Q_Q(QQuickWebEngineView);
    q->forceActiveFocus();
}

void QQuickWebEngineViewPrivate::unhandledKeyEvent(QKeyEvent *event)
{
    Q_Q(QQuickWebEngineView);
    if (q->parentItem())
        q->window()->sendEvent(q->parentItem(), event);
}

void QQuickWebEngineViewPrivate::adoptNewWindow(WebContentsAdapter *newWebContents, WindowOpenDisposition disposition, bool userGesture, const QRect &)
{
    Q_Q(QQuickWebEngineView);
    QQuickWebEngineNewViewRequest request;
    // This increases the ref-count of newWebContents and will tell Chromium
    // to start loading it and possibly return it to its parent page window.open().
    request.m_adapter = newWebContents;
    request.m_isUserInitiated = userGesture;

    switch (disposition) {
    case WebContentsAdapterClient::NewForegroundTabDisposition:
        request.m_destination = QQuickWebEngineView::NewViewInTab;
        break;
    case WebContentsAdapterClient::NewBackgroundTabDisposition:
        request.m_destination = QQuickWebEngineView::NewViewInBackgroundTab;
        break;
    case WebContentsAdapterClient::NewPopupDisposition:
        request.m_destination = QQuickWebEngineView::NewViewInDialog;
        break;
    case WebContentsAdapterClient::NewWindowDisposition:
        request.m_destination = QQuickWebEngineView::NewViewInWindow;
        break;
    default:
        Q_UNREACHABLE();
    }

    Q_EMIT q->newViewRequested(&request);
}

void QQuickWebEngineViewPrivate::close()
{
    // Not implemented yet.
}

void QQuickWebEngineViewPrivate::requestFullScreen(bool fullScreen)
{
    Q_Q(QQuickWebEngineView);
    QQuickWebEngineFullScreenRequest request(this, fullScreen);
    Q_EMIT q->fullScreenRequested(request);
}

bool QQuickWebEngineViewPrivate::isFullScreen() const
{
    return m_isFullScreen;
}

void QQuickWebEngineViewPrivate::javaScriptConsoleMessage(JavaScriptConsoleMessageLevel level, const QString& message, int lineNumber, const QString& sourceID)
{
    Q_Q(QQuickWebEngineView);
    Q_UNUSED(level);
    Q_EMIT q->javaScriptConsoleMessage(static_cast<QQuickWebEngineView::JavaScriptConsoleMessageLevel>(level), message, lineNumber, sourceID);
}

void QQuickWebEngineViewPrivate::runMediaAccessPermissionRequest(const QUrl &securityOrigin, WebContentsAdapterClient::MediaRequestFlags requestFlags)
{
   if (!requestFlags)
       return;
   QQuickWebEngineViewExperimental::Feature feature;
   if (requestFlags.testFlag(WebContentsAdapterClient::MediaAudioCapture) && requestFlags.testFlag(WebContentsAdapterClient::MediaVideoCapture))
       feature = QQuickWebEngineViewExperimental::MediaAudioVideoCapture;
   else if (requestFlags.testFlag(WebContentsAdapterClient::MediaAudioCapture))
       feature = QQuickWebEngineViewExperimental::MediaAudioCapture;
   else // WebContentsAdapterClient::MediaVideoCapture
       feature = QQuickWebEngineViewExperimental::MediaVideoCapture;
   Q_EMIT e->featurePermissionRequested(securityOrigin, feature);
}

void QQuickWebEngineViewPrivate::runMouseLockPermissionRequest(const QUrl &securityOrigin)
{

    Q_UNUSED(securityOrigin);

    // TODO: Add mouse lock support
    adapter->grantMouseLockPermission(false);
}

#ifndef QT_NO_ACCESSIBILITY
QObject *QQuickWebEngineViewPrivate::accessibilityParentObject()
{
    Q_Q(QQuickWebEngineView);
    return q;
}
#endif // QT_NO_ACCESSIBILITY

BrowserContextAdapter *QQuickWebEngineViewPrivate::browserContextAdapter()
{
    return m_profile->d_ptr->browserContext();
}

WebEngineSettings *QQuickWebEngineViewPrivate::webEngineSettings() const
{
    return m_settings->d_ptr.data();
}

void QQuickWebEngineViewPrivate::setDevicePixelRatio(qreal devicePixelRatio)
{
    Q_Q(QQuickWebEngineView);
    this->devicePixelRatio = devicePixelRatio;
    QScreen *screen = q->window() ? q->window()->screen() : QGuiApplication::primaryScreen();
    m_dpiScale = devicePixelRatio / screen->devicePixelRatio();
}

#ifndef QT_NO_ACCESSIBILITY
QQuickWebEngineViewAccessible::QQuickWebEngineViewAccessible(QQuickWebEngineView *o)
    : QAccessibleObject(o)
{}

QAccessibleInterface *QQuickWebEngineViewAccessible::parent() const
{
    QQuickItem *parent = engineView()->parentItem();
    return QAccessible::queryAccessibleInterface(parent);
}

int QQuickWebEngineViewAccessible::childCount() const
{
    if (engineView() && child(0))
        return 1;
    return 0;
}

QAccessibleInterface *QQuickWebEngineViewAccessible::child(int index) const
{
    if (index == 0)
        return engineView()->d_func()->adapter->browserAccessible();
    return 0;
}

int QQuickWebEngineViewAccessible::indexOfChild(const QAccessibleInterface *c) const
{
    if (c == child(0))
        return 0;
    return -1;
}

QString QQuickWebEngineViewAccessible::text(QAccessible::Text) const
{
    return QString();
}

QAccessible::Role QQuickWebEngineViewAccessible::role() const
{
    return QAccessible::Document;
}

QAccessible::State QQuickWebEngineViewAccessible::state() const
{
    QAccessible::State s;
    return s;
}
#endif // QT_NO_ACCESSIBILITY

void QQuickWebEngineViewPrivate::adoptWebContents(WebContentsAdapter *webContents)
{
    if (!webContents) {
        qWarning("Trying to open an empty request, it was either already used or was invalidated."
            "\nYou must complete the request synchronously within the newViewRequested signal handler."
            " If a view hasn't been adopted before returning, the request will be invalidated.");
        return;
    }

    if (browserContextAdapter() != webContents->browserContextAdapter()) {
        qWarning("Can not adopt content from a different WebEngineProfile.");
        return;
    }

    Q_Q(QQuickWebEngineView);
    // This throws away the WebContentsAdapter that has been used until now.
    // All its states, particularly the loading URL, are replaced by the adopted WebContentsAdapter.
    adapter = webContents;
    adapter->initialize(this);

    // Emit signals for values that might be different from the previous WebContentsAdapter.
    emit q->titleChanged();
    emit q->urlChanged();
    emit q->iconChanged();
    // FIXME: The current loading state should be stored in the WebContentAdapter
    // and it should be checked here if the signal emission is really necessary.
    QQuickWebEngineLoadRequest loadRequest(adapter->activeUrl(), QQuickWebEngineView::LoadSucceededStatus);
    emit q->loadingChanged(&loadRequest);
    emit q->loadProgressChanged();
}

QQuickWebEngineView::QQuickWebEngineView(QQuickItem *parent)
    : QQuickItem(parent)
    , d_ptr(new QQuickWebEngineViewPrivate)
{
    Q_D(QQuickWebEngineView);
    d->e->q_ptr = d->q_ptr = this;
    this->setActiveFocusOnTab(true);
    this->setFlag(QQuickItem::ItemIsFocusScope);

#ifndef QT_NO_ACCESSIBILITY
    QQuickAccessibleAttached *accessible = QQuickAccessibleAttached::qmlAttachedProperties(this);
    accessible->setRole(QAccessible::Grouping);
#endif // QT_NO_ACCESSIBILITY
}

QQuickWebEngineView::~QQuickWebEngineView()
{
}

void QQuickWebEngineViewPrivate::ensureContentsAdapter()
{
    if (!adapter) {
        adapter = new WebContentsAdapter();
        adapter->initialize(this);
        if (explicitUrl.isValid())
            adapter->load(explicitUrl);
        // push down the page's user scripts
        Q_FOREACH (QQuickWebEngineScript *script, m_userScripts)
            script->d_func()->bind(browserContextAdapter()->userScriptController(), adapter.data());
    }
}

QUrl QQuickWebEngineView::url() const
{
    Q_D(const QQuickWebEngineView);
    return d->explicitUrl.isValid() ? d->explicitUrl : (d->adapter ? d->adapter->activeUrl() : QUrl());
}

void QQuickWebEngineView::setUrl(const QUrl& url)
{
    if (url.isEmpty())
        return;

    Q_D(QQuickWebEngineView);
    d->explicitUrl = url;
    if (d->adapter)
        d->adapter->load(url);
    if (!qmlEngine(this))
        d->ensureContentsAdapter();
}

QUrl QQuickWebEngineView::icon() const
{
    Q_D(const QQuickWebEngineView);
    return d->icon;
}

void QQuickWebEngineView::loadHtml(const QString &html, const QUrl &baseUrl)
{
    Q_D(QQuickWebEngineView);
    d->explicitUrl = QUrl();
    if (!qmlEngine(this))
        d->ensureContentsAdapter();
    if (d->adapter)
        d->adapter->setContent(html.toUtf8(), QStringLiteral("text/html;charset=UTF-8"), baseUrl);
}

void QQuickWebEngineView::goBack()
{
    Q_D(QQuickWebEngineView);
    if (!d->adapter)
        return;
    d->adapter->navigateToOffset(-1);
}

void QQuickWebEngineView::goForward()
{
    Q_D(QQuickWebEngineView);
    if (!d->adapter)
        return;
    d->adapter->navigateToOffset(1);
}

void QQuickWebEngineView::reload()
{
    Q_D(QQuickWebEngineView);
    if (!d->adapter)
        return;
    d->adapter->reload();
}

void QQuickWebEngineView::stop()
{
    Q_D(QQuickWebEngineView);
    if (!d->adapter)
        return;
    d->adapter->stop();
}

void QQuickWebEngineView::setZoomFactor(qreal arg)
{
    Q_D(QQuickWebEngineView);
    if (!d->adapter)
        return;
    qreal oldFactor = d->adapter->currentZoomFactor();
    d->adapter->setZoomFactor(arg);
    if (qFuzzyCompare(oldFactor, d->adapter->currentZoomFactor()))
        return;

    emit zoomFactorChanged(arg);
}

QQuickWebEngineProfile *QQuickWebEngineView::profile() const
{
    Q_D(const QQuickWebEngineView);
    return d->m_profile;
}

void QQuickWebEngineView::setProfile(QQuickWebEngineProfile *profile)
{
    Q_D(QQuickWebEngineView);
    d->setProfile(profile);
}

QQuickWebEngineSettings *QQuickWebEngineView::settings() const
{
    Q_D(const QQuickWebEngineView);
    return d->m_settings.data();
}

QQmlListProperty<QQuickWebEngineScript> QQuickWebEngineView::userScripts()
{
    Q_D(QQuickWebEngineView);
    return QQmlListProperty<QQuickWebEngineScript>(this, d,
                                                   d->userScripts_append,
                                                   d->userScripts_count,
                                                   d->userScripts_at,
                                                   d->userScripts_clear);
}

void QQuickWebEngineViewPrivate::setProfile(QQuickWebEngineProfile *profile)
{
    if (profile == m_profile)
        return;
    m_profile = profile;
    m_settings->setParentSettings(profile->settings());

    if (adapter && adapter->browserContext() != browserContextAdapter()->browserContext()) {
        // When the profile changes we need to create a new WebContentAdapter and reload the active URL.
        QUrl activeUrl = adapter->activeUrl();
        adapter = 0;
        ensureContentsAdapter();
        if (!explicitUrl.isValid() && activeUrl.isValid())
            adapter->load(activeUrl);
    }
}

#ifdef ENABLE_QML_TESTSUPPORT_API
QQuickWebEngineTestSupport *QQuickWebEngineView::testSupport() const
{
    Q_D(const QQuickWebEngineView);
    return d->m_testSupport;
}

void QQuickWebEngineView::setTestSupport(QQuickWebEngineTestSupport *testSupport)
{
    Q_D(QQuickWebEngineView);
    d->m_testSupport = testSupport;
}
#endif

void QQuickWebEngineViewPrivate::didRunJavaScript(quint64 requestId, const QVariant &result)
{
    Q_Q(QQuickWebEngineView);
    QJSValue callback = m_callbacks.take(requestId);
    QJSValueList args;
    args.append(qmlEngine(q)->toScriptValue(result));
    callback.call(args);
}

void QQuickWebEngineViewPrivate::didFindText(quint64 requestId, int matchCount)
{
    QJSValue callback = m_callbacks.take(requestId);
    QJSValueList args;
    args.append(QJSValue(matchCount));
    callback.call(args);
}

bool QQuickWebEngineView::isLoading() const
{
    Q_D(const QQuickWebEngineView);
    return d->isLoading;
}

int QQuickWebEngineView::loadProgress() const
{
    Q_D(const QQuickWebEngineView);
    return d->loadProgress;
}

QString QQuickWebEngineView::title() const
{
    Q_D(const QQuickWebEngineView);
    if (!d->adapter)
        return QString();
    return d->adapter->pageTitle();
}

bool QQuickWebEngineView::canGoBack() const
{
    Q_D(const QQuickWebEngineView);
    if (!d->adapter)
        return false;
    return d->adapter->canGoBack();
}

bool QQuickWebEngineView::canGoForward() const
{
    Q_D(const QQuickWebEngineView);
    if (!d->adapter)
        return false;
    return d->adapter->canGoForward();
}

void QQuickWebEngineView::runJavaScript(const QString &script, const QJSValue &callback)
{
    Q_D(QQuickWebEngineView);
    if (!d->adapter)
        return;
    if (!callback.isUndefined()) {
        quint64 requestId = d_ptr->adapter->runJavaScriptCallbackResult(script);
        d->m_callbacks.insert(requestId, callback);
    } else
        d->adapter->runJavaScript(script);
}

QQuickWebEngineViewExperimental *QQuickWebEngineView::experimental() const
{
    Q_D(const QQuickWebEngineView);
    return d->e.data();
}

qreal QQuickWebEngineView::zoomFactor() const
{
    Q_D(const QQuickWebEngineView);
    if (!d->adapter)
        return 1.0;
    return d->adapter->currentZoomFactor();
}


bool QQuickWebEngineView::isFullScreen() const
{
    Q_D(const QQuickWebEngineView);
    return d->m_isFullScreen;
}

void QQuickWebEngineViewExperimental::setExtraContextMenuEntriesComponent(QQmlComponent *contextMenuExtras)
{
    if (d_ptr->contextMenuExtraItems == contextMenuExtras)
        return;
    d_ptr->contextMenuExtraItems = contextMenuExtras;
    emit extraContextMenuEntriesComponentChanged();
}

QQmlComponent *QQuickWebEngineViewExperimental::extraContextMenuEntriesComponent() const
{
    return d_ptr->contextMenuExtraItems;
}

void QQuickWebEngineView::findText(const QString &subString, FindFlags options, const QJSValue &callback)
{
    Q_D(QQuickWebEngineView);
    if (!d->adapter)
        return;
    if (subString.isEmpty()) {
        d->adapter->stopFinding();
        if (!callback.isUndefined()) {
            QJSValueList args;
            args.append(QJSValue(0));
            const_cast<QJSValue&>(callback).call(args);
        }
    } else {
        quint64 requestId = d->adapter->findText(subString, options & FindCaseSensitively, options & FindBackward);
        if (!callback.isUndefined())
            d->m_callbacks.insert(requestId, callback);
    }
}

QQuickWebEngineHistory *QQuickWebEngineView::navigationHistory() const
{
    Q_D(const QQuickWebEngineView);
    return d->m_history.data();
}

/*!
 * \qmlproperty QQmlWebChannel WebEngineView::webChannel
 * \since QtWebEngine 1.1
 *
 * The web channel instance used by this view.
 * This channel is automatically using the internal QtWebEngine transport mechanism over Chromium IPC,
 * and exposed in the javascript context of the page it is rendering as \c qt.webChannelTransport.
 * This transport object is used when instantiating the JavaScript counterpart of QWebChannel using
 * the \l{Qt WebChannel JavaScript API}.
 *
 * \note The view does not take ownership when explicitly setting a webChannel object.
 */

QQmlWebChannel *QQuickWebEngineView::webChannel()
{
    Q_D(QQuickWebEngineView);
    d->ensureContentsAdapter();
    QQmlWebChannel *qmlWebChannel = qobject_cast<QQmlWebChannel *>(d->adapter->webChannel());
    Q_ASSERT(!d->adapter->webChannel() || qmlWebChannel);
    if (!qmlWebChannel) {
        qmlWebChannel = new QQmlWebChannel(this);
        d->adapter->setWebChannel(qmlWebChannel);
    }
    return qmlWebChannel;
}

void QQuickWebEngineView::setWebChannel(QQmlWebChannel *webChannel)
{
    Q_D(QQuickWebEngineView);
    bool notify = (d->adapter->webChannel() == webChannel);
    d->adapter->setWebChannel(webChannel);
    if (notify)
        Q_EMIT webChannelChanged();
}

void QQuickWebEngineViewExperimental::grantFeaturePermission(const QUrl &securityOrigin, QQuickWebEngineViewExperimental::Feature feature, bool granted)
{
    if (!d_ptr->adapter)
        return;
    if (!granted && feature >= MediaAudioCapture && feature <= MediaAudioVideoCapture) {
         d_ptr->adapter->grantMediaAccessPermission(securityOrigin, WebContentsAdapterClient::MediaNone);
         return;
    }

    switch (feature) {
    case MediaAudioCapture:
        d_ptr->adapter->grantMediaAccessPermission(securityOrigin, WebContentsAdapterClient::MediaAudioCapture);
        break;
    case MediaVideoCapture:
        d_ptr->adapter->grantMediaAccessPermission(securityOrigin, WebContentsAdapterClient::MediaVideoCapture);
        break;
    case MediaAudioVideoCapture:
        d_ptr->adapter->grantMediaAccessPermission(securityOrigin, WebContentsAdapterClient::MediaRequestFlags(WebContentsAdapterClient::MediaAudioCapture                                                                                                               | WebContentsAdapterClient::MediaVideoCapture));
        break;
    case Geolocation:
        d_ptr->adapter->runGeolocationRequestCallback(securityOrigin, granted);
        break;
    default:
        Q_UNREACHABLE();
    }
}

void QQuickWebEngineView::goBackOrForward(int offset)
{
    Q_D(QQuickWebEngineView);
    if (!d->adapter)
        return;
    const int current = d->adapter->currentNavigationEntryIndex();
    const int count = d->adapter->navigationEntryCount();
    const int index = current + offset;

    if (index < 0 || index >= count)
        return;

    d->adapter->navigateToIndex(index);
}

void QQuickWebEngineView::fullScreenCancelled()
{
    Q_D(QQuickWebEngineView);
    if (d->m_isFullScreen) {
        d->m_isFullScreen = false;
        Q_EMIT isFullScreenChanged();
    }
}

void QQuickWebEngineView::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
{
    QQuickItem::geometryChanged(newGeometry, oldGeometry);
    Q_FOREACH(QQuickItem *child, childItems()) {
        if (qobject_cast<RenderWidgetHostViewQtDelegateQuick *>(child))
            child->setSize(newGeometry.size());
    }
}

void QQuickWebEngineView::itemChange(ItemChange change, const ItemChangeData &value)
{
    Q_D(QQuickWebEngineView);
    if (d->adapter && (change == ItemSceneChange || change == ItemVisibleHasChanged)) {
        if (window() && isVisible())
            d->adapter->wasShown();
        else
            d->adapter->wasHidden();
    }
    QQuickItem::itemChange(change, value);
}

void QQuickWebEngineViewPrivate::userScripts_append(QQmlListProperty<QQuickWebEngineScript> *p, QQuickWebEngineScript *script)
{
    Q_ASSERT(p && p->data);
    QQuickWebEngineViewPrivate *d = static_cast<QQuickWebEngineViewPrivate*>(p->data);
    UserScriptControllerHost *scriptController = d->browserContextAdapter()->userScriptController();
    d->m_userScripts.append(script);
    // If the adapter hasn't been instantiated, we'll bind the scripts in ensureContentsAdapter()
    if (!d->adapter)
        return;
    script->d_func()->bind(scriptController, d->adapter.data());
}

int QQuickWebEngineViewPrivate::userScripts_count(QQmlListProperty<QQuickWebEngineScript> *p)
{
    Q_ASSERT(p && p->data);
    QQuickWebEngineViewPrivate *d = static_cast<QQuickWebEngineViewPrivate*>(p->data);
    return d->m_userScripts.count();
}

QQuickWebEngineScript *QQuickWebEngineViewPrivate::userScripts_at(QQmlListProperty<QQuickWebEngineScript> *p, int idx)
{
    Q_ASSERT(p && p->data);
    QQuickWebEngineViewPrivate *d = static_cast<QQuickWebEngineViewPrivate*>(p->data);
    return d->m_userScripts.at(idx);
}

void QQuickWebEngineViewPrivate::userScripts_clear(QQmlListProperty<QQuickWebEngineScript> *p)
{
    Q_ASSERT(p && p->data);
    QQuickWebEngineViewPrivate *d = static_cast<QQuickWebEngineViewPrivate*>(p->data);
    UserScriptControllerHost *scriptController = d->browserContextAdapter()->userScriptController();
    scriptController->clearAllScripts(d->adapter.data());
    d->m_userScripts.clear();
}

void QQuickWebEngineView::componentComplete()
{
    Q_D(QQuickWebEngineView);
    QQuickItem::componentComplete();
    d->ensureContentsAdapter();
}

QQuickWebEngineFullScreenRequest::QQuickWebEngineFullScreenRequest()
    : viewPrivate(0)
    , m_toggleOn(false)
{
}

QQuickWebEngineFullScreenRequest::QQuickWebEngineFullScreenRequest(QQuickWebEngineViewPrivate *viewPrivate, bool toggleOn)
    : viewPrivate(viewPrivate)
    , m_toggleOn(toggleOn)
{
}

void QQuickWebEngineFullScreenRequest::accept()
{
    if (viewPrivate && viewPrivate->m_isFullScreen != m_toggleOn) {
        viewPrivate->m_isFullScreen = m_toggleOn;
        Q_EMIT viewPrivate->q_ptr->isFullScreenChanged();
    }
}

QQuickWebEngineViewExperimental::QQuickWebEngineViewExperimental(QQuickWebEngineViewPrivate *viewPrivate)
    : q_ptr(0)
    , d_ptr(viewPrivate)
{
}

QQuickWebEngineViewport *QQuickWebEngineViewExperimental::viewport() const
{
    Q_D(const QQuickWebEngineView);
    return d->viewport();
}

QQuickWebEngineViewport::QQuickWebEngineViewport(QQuickWebEngineViewPrivate *viewPrivate)
    : d_ptr(viewPrivate)
{
}

qreal QQuickWebEngineViewport::devicePixelRatio() const
{
    Q_D(const QQuickWebEngineView);
    return d->devicePixelRatio;
}

void QQuickWebEngineViewport::setDevicePixelRatio(qreal devicePixelRatio)
{
    Q_D(QQuickWebEngineView);
    // Valid range is [1, inf)
    devicePixelRatio = qMax(qreal(1.0), devicePixelRatio);
    if (d->devicePixelRatio == devicePixelRatio)
        return;
    d->setDevicePixelRatio(devicePixelRatio);
    if (!d->adapter)
        return;
    d->adapter->dpiScaleChanged();
    Q_EMIT devicePixelRatioChanged();
}

QT_END_NAMESPACE

#include "moc_qquickwebengineview_p.cpp"
#include "moc_qquickwebengineview_p_p.cpp"