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// Copyright (C) 2018 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
#ifndef WEB_CHANNEL_IPC_TRANSPORT_H
#define WEB_CHANNEL_IPC_TRANSPORT_H
#include "qtwebenginecoreglobal.h"
#include "content/public/browser/render_frame_host_receiver_set.h"
#include "content/public/browser/web_contents_observer.h"
#include "qtwebengine/browser/qtwebchannel.mojom.h"
#include <QWebChannelAbstractTransport>
#include <map>
QT_FORWARD_DECLARE_CLASS(QString)
namespace QtWebEngineCore {
class WebChannelIPCTransportHost
: public QWebChannelAbstractTransport
, private content::WebContentsObserver
, qtwebchannel::mojom::WebChannelTransportHost
{
public:
WebChannelIPCTransportHost(content::WebContents *webContents, uint32_t worldId = 0, QObject *parent = nullptr);
~WebChannelIPCTransportHost() override;
void setWorldId(uint32_t worldId);
uint32_t worldId() const;
// QWebChannelAbstractTransport
void sendMessage(const QJsonObject &message) override;
void BindReceiver(
mojo::PendingAssociatedReceiver<qtwebchannel::mojom::WebChannelTransportHost> receiver,
content::RenderFrameHost *rfh);
private:
void setWorldId(content::RenderFrameHost *frame, uint32_t worldId);
void resetWorldId();
const mojo::AssociatedRemote<qtwebchannel::mojom::WebChannelTransportRender> &
GetWebChannelIPCTransportRemote(content::RenderFrameHost *rfh);
// WebContentsObserver
void RenderFrameCreated(content::RenderFrameHost *frame) override;
void RenderFrameDeleted(content::RenderFrameHost *render_frame_host) override;
// qtwebchannel::mojom::WebChannelTransportHost
void DispatchWebChannelMessage(const std::vector<uint8_t> &json) override;
// Empty only during construction/destruction. Synchronized to all the
// WebChannelIPCTransports/RenderFrames in the observed WebContents.
uint32_t m_worldId;
content::RenderFrameHostReceiverSet<qtwebchannel::mojom::WebChannelTransportHost> m_receiver;
std::map<content::RenderFrameHost *,
mojo::AssociatedRemote<qtwebchannel::mojom::WebChannelTransportRender>>
m_renderFrames;
};
} // namespace
#endif // WEB_CHANNEL_IPC_TRANSPORT_H
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