chromium/extensions/browser/extension_function_dispatcher.h

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef EXTENSIONS_BROWSER_EXTENSION_FUNCTION_DISPATCHER_H_
#define EXTENSIONS_BROWSER_EXTENSION_FUNCTION_DISPATCHER_H_

#include <map>
#include <set>
#include <string>
#include <vector>

#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "extensions/browser/extension_function.h"
#include "extensions/common/features/feature.h"
#include "extensions/common/mojom/context_type.mojom-forward.h"
#include "extensions/common/mojom/frame.mojom.h"
#include "extensions/common/mojom/service_worker_host.mojom.h"
#include "ipc/ipc_sender.h"

namespace content {
class BrowserContext;
class RenderFrameHost;
class RenderProcessHost;
class WebContents;
}

namespace extensions {

class Extension;
class ExtensionAPI;
class WindowController;

// ExtensionFunctionDispatcher receives requests to execute functions from
// Chrome extensions running in a RenderFrameHost and dispatches them to the
// appropriate handler. It lives entirely on the UI thread.
//
// ExtensionFunctionDispatcher should be a member of some class that hosts
// RenderFrameHosts and wants them to be able to display extension content.
// This class should also implement ExtensionFunctionDispatcher::Delegate.
//
// Note that a single ExtensionFunctionDispatcher does *not* correspond to a
// single RVH, a single extension, or a single URL. This is by design so that
// we can gracefully handle cases like WebContents, where the RVH, extension,
// and URL can all change over the lifetime of the tab. Instead, these items
// are all passed into each request.
class ExtensionFunctionDispatcher { … };

}  // namespace extensions

#endif  // EXTENSIONS_BROWSER_EXTENSION_FUNCTION_DISPATCHER_H_