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// Copyright 2016 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 HEADLESS_PUBLIC_HEADLESS_DEVTOOLS_TARGET_H_
#define HEADLESS_PUBLIC_HEADLESS_DEVTOOLS_TARGET_H_
#include "base/macros.h"
#include "headless/public/headless_export.h"
namespace headless {
class HeadlessDevToolsClient;
// A target which can be controlled and inspected using DevTools.
class HEADLESS_EXPORT HeadlessDevToolsTarget {
public:
HeadlessDevToolsTarget() {}
virtual ~HeadlessDevToolsTarget() {}
// Attach or detach a client to this target. A client must be attached in
// order to send commands or receive notifications from the target.
//
// A single client may be attached to at most one target at a time. If
// the target already has a client attached, AttachClient will return false.
// ForceAttachClient will detach any existing connection before attaching
// |client|.
// Note that currently also only one client may be attached to a single target
// at a time.
//
// |client| must outlive this target.
virtual bool AttachClient(HeadlessDevToolsClient* client) = 0;
virtual void ForceAttachClient(HeadlessDevToolsClient* client) = 0;
virtual void DetachClient(HeadlessDevToolsClient* client) = 0;
// Returns true if a devtools client is attached.
virtual bool IsAttached() = 0;
private:
DISALLOW_COPY_AND_ASSIGN(HeadlessDevToolsTarget);
};
} // namespace headless
#endif // HEADLESS_PUBLIC_HEADLESS_DEVTOOLS_TARGET_H_
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