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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/extension_devtools_bridge.h"
#include "base/json/json_reader.h"
#include "base/json/json_writer.h"
#include "base/message_loop.h"
#include "base/stringprintf.h"
#include "base/string_util.h"
#include "base/values.h"
#include "chrome/browser/extensions/event_router.h"
#include "chrome/browser/extensions/extension_devtools_events.h"
#include "chrome/browser/extensions/extension_devtools_manager.h"
#include "chrome/browser/extensions/extension_system.h"
#include "chrome/browser/extensions/extension_tab_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/tab_contents/tab_contents.h"
#include "content/public/browser/devtools_agent_host_registry.h"
#include "content/public/browser/devtools_manager.h"
#include "content/public/browser/web_contents.h"
using content::DevToolsAgentHost;
using content::DevToolsAgentHostRegistry;
using content::DevToolsManager;
using content::WebContents;
ExtensionDevToolsBridge::ExtensionDevToolsBridge(int tab_id,
Profile* profile)
: tab_id_(tab_id),
profile_(profile),
on_page_event_name_(
ExtensionDevToolsEvents::OnPageEventNameForTab(tab_id)),
on_tab_close_event_name_(
ExtensionDevToolsEvents::OnTabCloseEventNameForTab(tab_id)) {
extension_devtools_manager_ =
extensions::ExtensionSystem::Get(profile)->devtools_manager();
DCHECK(extension_devtools_manager_.get());
}
ExtensionDevToolsBridge::~ExtensionDevToolsBridge() {
}
static std::string FormatDevToolsMessage(int id, const std::string& method) {
DictionaryValue message;
message.SetInteger("id", id);
message.SetString("method", method);
message.Set("params", new DictionaryValue);
std::string json;
base::JSONWriter::Write(&message, &json);
return json;
}
bool ExtensionDevToolsBridge::RegisterAsDevToolsClientHost() {
DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
Browser* browser;
TabStripModel* tab_strip;
WebContents* contents;
int tab_index;
if (ExtensionTabUtil::GetTabById(tab_id_, profile_, true,
&browser, &tab_strip,
&contents, &tab_index)) {
DevToolsManager* devtools_manager = DevToolsManager::GetInstance();
DevToolsAgentHost* agent = DevToolsAgentHostRegistry::GetDevToolsAgentHost(
contents->GetRenderViewHost());
if (devtools_manager->GetDevToolsClientHostFor(agent))
return false;
devtools_manager->RegisterDevToolsClientHostFor(agent, this);
// Following messages depend on inspector protocol that is not yet
// finalized.
// 1. Start timeline profiler.
devtools_manager->DispatchOnInspectorBackend(
this,
FormatDevToolsMessage(2, "Timeline.start"));
// 2. Enable network resource tracking.
devtools_manager->DispatchOnInspectorBackend(
this,
FormatDevToolsMessage(3, "Network.enable"));
// 3. Enable page events.
devtools_manager->DispatchOnInspectorBackend(
this,
FormatDevToolsMessage(4, "Page.enable"));
return true;
}
return false;
}
void ExtensionDevToolsBridge::UnregisterAsDevToolsClientHost() {
DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
DevToolsManager::GetInstance()->ClientHostClosing(this);
}
// If the tab we are looking at is going away then we fire a closing event at
// the extension.
void ExtensionDevToolsBridge::InspectedContentsClosing() {
DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
// TODO(knorton): Remove this event in favor of the standard tabs.onRemoved
// event in extensions.
scoped_ptr<base::ListValue> arguments(new base::ListValue());
arguments->Set(0, new base::DictionaryValue());
extensions::ExtensionSystem::Get(profile_)->event_router()->
DispatchEventToRenderers(
on_tab_close_event_name_, arguments.Pass(), profile_, GURL(),
extensions::EventFilteringInfo());
// This may result in this object being destroyed.
extension_devtools_manager_->BridgeClosingForTab(tab_id_);
}
void ExtensionDevToolsBridge::DispatchOnInspectorFrontend(
const std::string& data) {
DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
scoped_ptr<base::ListValue> arguments(new base::ListValue());
if (!data.empty()) {
arguments->Append(base::JSONReader::Read(data));
}
extensions::ExtensionSystem::Get(profile_)->event_router()->
DispatchEventToRenderers(
on_page_event_name_, arguments.Pass(), profile_, GURL(),
extensions::EventFilteringInfo());
}
void ExtensionDevToolsBridge::ContentsReplaced(WebContents* new_contents) {
// We don't update the tab id as it needs to remain the same so that we can
// properly unregister.
}
void ExtensionDevToolsBridge::ReplacedWithAnotherClient() {
}
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