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// Copyright 2014 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 EXTENSIONS_RENDERER_MESSAGING_BINDINGS_H_
#define EXTENSIONS_RENDERER_MESSAGING_BINDINGS_H_
#include <string>
#include "extensions/renderer/script_context_set.h"
struct ExtensionMsg_ExternalConnectionInfo;
struct ExtensionMsg_TabConnectionInfo;
namespace base {
class DictionaryValue;
}
namespace content {
class RenderFrame;
}
namespace v8 {
class Extension;
}
namespace extensions {
class Dispatcher;
struct Message;
class ObjectBackedNativeHandler;
class ScriptContextSet;
// Manually implements JavaScript bindings for extension messaging.
//
// TODO(aa): This should all get re-implemented using SchemaGeneratedBindings.
// If anything needs to be manual for some reason, it should be implemented in
// its own class.
class MessagingBindings {
public:
// Creates an instance of the extension.
static ObjectBackedNativeHandler* Get(Dispatcher* dispatcher,
ScriptContext* context);
// Dispatches the onConnect content script messaging event to some contexts
// in |context_set|. If |restrict_to_render_frame| is specified, only contexts
// in that render frame will receive the message.
static void DispatchOnConnect(const ScriptContextSet& context_set,
int target_port_id,
const std::string& channel_name,
const ExtensionMsg_TabConnectionInfo& source,
const ExtensionMsg_ExternalConnectionInfo& info,
const std::string& tls_channel_id,
content::RenderFrame* restrict_to_render_frame);
// Delivers a message sent using content script messaging to some of the
// contexts in |bindings_context_set|. If |restrict_to_render_frame| is
// specified, only contexts in that render view will receive the message.
static void DeliverMessage(const ScriptContextSet& context_set,
int target_port_id,
const Message& message,
content::RenderFrame* restrict_to_render_frame);
// Dispatches the onDisconnect event in response to the channel being closed.
static void DispatchOnDisconnect(
const ScriptContextSet& context_set,
int port_id,
const std::string& error_message,
content::RenderFrame* restrict_to_render_frame);
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_MESSAGING_BINDINGS_H_
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