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// Copyright (c) 2009 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 CHROME_BROWSER_DEBUGGER_DEVTOOLS_MANAGER_H_
#define CHROME_BROWSER_DEBUGGER_DEVTOOLS_MANAGER_H_
#include <map>
#include "base/basictypes.h"
#include "base/scoped_ptr.h"
#include "chrome/browser/debugger/devtools_client_host.h"
#include "chrome/common/notification_service.h"
namespace IPC {
class Message;
}
class DevToolsClientHost;
class NavigationController;
class NotificationRegistrar;
class RenderViewHost;
class WebContents;
// This class is a singleton that manages DevToolsClientHost instances and
// routes messages between developer tools clients and agents.
class DevToolsManager : public NotificationObserver,
public DevToolsClientHost::CloseListener {
public:
DevToolsManager();
virtual ~DevToolsManager();
// Returns DevToolsClientHost registered for |web_contents| or NULL if
// there is no alive DevToolsClientHost registered for |web_contents|.
DevToolsClientHost* GetDevToolsClientHostFor(const WebContents& web_contents);
// Registers new DevToolsClientHost for |web_contents|. There must be no
// other DevToolsClientHosts registered for the WebContents at the moment.
void RegisterDevToolsClientHostFor(const WebContents& web_contents,
DevToolsClientHost* client_host);
void ForwardToDevToolsAgent(const RenderViewHost& client_rvh,
const IPC::Message& message);
void ForwardToDevToolsAgent(const DevToolsClientHost& from,
const IPC::Message& message);
void ForwardToDevToolsClient(const RenderViewHost& from,
const IPC::Message& message);
void OpenDevToolsWindow(WebContents* wc);
// Starts element inspection in the devtools client.
// Creates one by means of OpenDevToolsWindow if no client
// exists.
void InspectElement(WebContents* web_contents, int x, int y);
// Sends 'Attach' message to the agent using |target_host| in case
// there is a DevToolsClientHost registered for the |web_contents|.
void SendAttachToAgent(
const WebContents& web_contents,
RenderViewHost* target_host);
private:
// NotificationObserver override.
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
// DevToolsClientHost::CloseListener override.
// This method will remove all references from the manager to the
// DevToolsClientHost and unregister all listeners related to the
// DevToolsClientHost.
virtual void ClientHostClosing(DevToolsClientHost* host);
// Returns NavigationController for the tab that is inspected by devtools
// client hosted by DevToolsClientHost.
NavigationController* GetDevToolsAgentNavigationController(
const DevToolsClientHost& client_host);
void UnregisterDevToolsClientHost(
DevToolsClientHost* client_host,
NavigationController* navigation_controller);
void StartListening(NavigationController* navigation_controller);
void StopListening(NavigationController* navigation_controller);
void SendDetachToAgent(const WebContents& web_contents);
// This object is not NULL iff there is at least one registered
// DevToolsClientHost.
scoped_ptr<NotificationRegistrar> web_contents_listeners_;
// These two maps are for tracking dependencies between inspected tabs and
// their DevToolsClientHosts. They are usful for routing devtools messages
// and allow us to have at most one devtools client host per tab. We use
// NavigationController* as key because it survives crosee-site navigation in
// cases when tab contents may change.
//
// DevToolsManager start listening to DevToolsClientHosts when they are put
// into these maps and removes them when they are closing.
typedef std::map<const NavigationController*,
DevToolsClientHost*> ClientHostMap;
ClientHostMap navcontroller_to_client_host_;
typedef std::map<const DevToolsClientHost*,
NavigationController*> NavControllerMap;
NavControllerMap client_host_to_navcontroller_;
DISALLOW_COPY_AND_ASSIGN(DevToolsManager);
};
#endif // CHROME_BROWSER_DEBUGGER_DEVTOOLS_MANAGER_H_
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