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// Copyright (c) 2012 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.
#include "chrome/browser/extensions/api/messaging/extension_message_port.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/render_process_host.h"
#include "extensions/browser/extension_host.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/process_manager.h"
#include "extensions/common/extension_messages.h"
#include "extensions/common/manifest_handlers/background_info.h"
namespace extensions {
ExtensionMessagePort::ExtensionMessagePort(content::RenderProcessHost* process,
int routing_id,
const std::string& extension_id)
: process_(process),
routing_id_(routing_id),
extension_id_(extension_id),
background_host_ptr_(NULL) {
}
void ExtensionMessagePort::DispatchOnConnect(
int dest_port_id,
const std::string& channel_name,
const base::DictionaryValue& source_tab,
const std::string& source_extension_id,
const std::string& target_extension_id,
const GURL& source_url,
const std::string& tls_channel_id) {
ExtensionMsg_ExternalConnectionInfo info;
info.target_id = target_extension_id;
info.source_id = source_extension_id;
info.source_url = source_url;
process_->Send(new ExtensionMsg_DispatchOnConnect(
routing_id_, dest_port_id, channel_name, source_tab, info,
tls_channel_id));
}
void ExtensionMessagePort::DispatchOnDisconnect(
int source_port_id,
const std::string& error_message) {
process_->Send(new ExtensionMsg_DispatchOnDisconnect(
routing_id_, source_port_id, error_message));
}
void ExtensionMessagePort::DispatchOnMessage(const Message& message,
int target_port_id) {
process_->Send(new ExtensionMsg_DeliverMessage(
routing_id_, target_port_id, message));
}
void ExtensionMessagePort::IncrementLazyKeepaliveCount() {
Profile* profile =
Profile::FromBrowserContext(process_->GetBrowserContext());
extensions::ProcessManager* pm =
ExtensionSystem::Get(profile)->process_manager();
ExtensionHost* host = pm->GetBackgroundHostForExtension(extension_id_);
if (host && BackgroundInfo::HasLazyBackgroundPage(host->extension()))
pm->IncrementLazyKeepaliveCount(host->extension());
// Keep track of the background host, so when we decrement, we only do so if
// the host hasn't reloaded.
background_host_ptr_ = host;
}
void ExtensionMessagePort::DecrementLazyKeepaliveCount() {
Profile* profile =
Profile::FromBrowserContext(process_->GetBrowserContext());
extensions::ProcessManager* pm =
ExtensionSystem::Get(profile)->process_manager();
ExtensionHost* host = pm->GetBackgroundHostForExtension(extension_id_);
if (host && host == background_host_ptr_)
pm->DecrementLazyKeepaliveCount(host->extension());
}
content::RenderProcessHost* ExtensionMessagePort::GetRenderProcessHost() {
return process_;
}
} // namespace extensions
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