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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_PUBLIC_BROWSER_SERIAL_DELEGATE_H_
#define CONTENT_PUBLIC_BROWSER_SERIAL_DELEGATE_H_
#include <memory>
#include <vector>
#include "base/observer_list_types.h"
#include "content/common/content_export.h"
#include "content/public/browser/serial_chooser.h"
#include "services/device/public/mojom/serial.mojom.h"
#include "third_party/blink/public/mojom/serial/serial.mojom.h"
namespace content {
class RenderFrameHost;
class CONTENT_EXPORT SerialDelegate {
public:
class Observer : public base::CheckedObserver {
public:
virtual void OnPortAdded(const device::mojom::SerialPortInfo& port) = 0;
virtual void OnPortRemoved(const device::mojom::SerialPortInfo& port) = 0;
virtual void OnPortManagerConnectionError() = 0;
};
virtual ~SerialDelegate() = default;
// Shows a chooser for the user to select a serial port. |callback| will be
// run when the prompt is closed. Deleting the returned object will cancel the
// prompt. This method should not be called if CanRequestPortPermission()
// below returned false.
virtual std::unique_ptr<SerialChooser> RunChooser(
RenderFrameHost* frame,
std::vector<blink::mojom::SerialPortFilterPtr> filters,
SerialChooser::Callback callback) = 0;
// Returns whether |frame| has permission to request access to a port.
virtual bool CanRequestPortPermission(RenderFrameHost* frame) = 0;
// Returns whether |frame| has permission to access |port|.
virtual bool HasPortPermission(RenderFrameHost* frame,
const device::mojom::SerialPortInfo& port) = 0;
// Returns an open connection to the SerialPortManager interface owned by
// the embedder and being used to serve requests from |frame|.
//
// Content and the embedder must use the same connection so that the embedder
// can process connect/disconnect events for permissions management purposes
// before they are delivered to content. Otherwise race conditions are
// possible.
virtual device::mojom::SerialPortManager* GetPortManager(
RenderFrameHost* frame) = 0;
// Functions to manage the set of Observer instances registered to this
// object.
virtual void AddObserver(RenderFrameHost* frame, Observer* observer) = 0;
virtual void RemoveObserver(RenderFrameHost* frame, Observer* observer) = 0;
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_SERIAL_DELEGATE_H_
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