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// Copyright (c) 2010 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_EXTENSIONS_EXTENSION_PROCESS_MANAGER_H_
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_PROCESS_MANAGER_H_
#include <map>
#include <set>
#include <string>
#include "base/ref_counted.h"
#include "chrome/common/notification_registrar.h"
#include "chrome/common/view_types.h"
class Browser;
class BrowsingInstance;
class Extension;
class ExtensionHost;
#if defined(TOOLKIT_VIEWS)
class ExtensionView;
#endif
class GURL;
class Profile;
class RenderProcessHost;
class SiteInstance;
// Manages dynamic state of running Chromium extensions. There is one instance
// of this class per Profile (including OTR).
class ExtensionProcessManager : public NotificationObserver {
public:
explicit ExtensionProcessManager(Profile* profile);
~ExtensionProcessManager();
// Creates a new ExtensionHost with its associated view, grouping it in the
// appropriate SiteInstance (and therefore process) based on the URL and
// profile.
ExtensionHost* CreateView(Extension* extension,
const GURL& url,
Browser* browser,
ViewType::Type view_type);
ExtensionHost* CreateView(const GURL& url,
Browser* browser,
ViewType::Type view_type);
ExtensionHost* CreateToolstrip(Extension* extension,
const GURL& url,
Browser* browser);
ExtensionHost* CreateToolstrip(const GURL& url, Browser* browser);
ExtensionHost* CreatePopup(Extension* extension,
const GURL& url,
Browser* browser);
ExtensionHost* CreatePopup(const GURL& url, Browser* browser);
ExtensionHost* CreateInfobar(Extension* extension,
const GURL& url,
Browser* browser);
ExtensionHost* CreateInfobar(const GURL& url,
Browser* browser);
// Creates a new UI-less extension instance. Like CreateView, but not
// displayed anywhere.
ExtensionHost* CreateBackgroundHost(Extension* extension, const GURL& url);
// Open the extension's options page.
void OpenOptionsPage(Extension* extension, Browser* browser);
// Gets the ExtensionHost for the background page for an extension, or NULL if
// the extension isn't running or doesn't have a background page.
ExtensionHost* GetBackgroundHostForExtension(Extension* extension);
// Returns the SiteInstance that the given URL belongs to.
SiteInstance* GetSiteInstanceForURL(const GURL& url);
// Registers an extension process by |extension_id| and specifying which
// |process_id| it belongs to.
void RegisterExtensionProcess(const std::string& extension_id,
int process_id);
// Unregisters an extension process with specified |process_id|.
void UnregisterExtensionProcess(int process_id);
// Returns the extension process that |url| is associated with if it exists.
RenderProcessHost* GetExtensionProcess(const GURL& url);
// Returns the process that the extension with the given ID is running in.
// NOTE: This does not currently handle app processes with no
// ExtensionFunctionDispatcher objects.
RenderProcessHost* GetExtensionProcess(const std::string& extension_id);
// Returns true if |host| is managed by this process manager.
bool HasExtensionHost(ExtensionHost* host) const;
// NotificationObserver:
virtual void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
typedef std::set<ExtensionHost*> ExtensionHostSet;
typedef ExtensionHostSet::const_iterator const_iterator;
const_iterator begin() const { return all_hosts_.begin(); }
const_iterator end() const { return all_hosts_.end(); }
private:
// Called just after |host| is created so it can be registered in our lists.
void OnExtensionHostCreated(ExtensionHost* host, bool is_background);
// Called on browser shutdown to close our extension hosts.
void CloseBackgroundHosts();
NotificationRegistrar registrar_;
// The set of all ExtensionHosts managed by this process manager.
ExtensionHostSet all_hosts_;
// The set of running viewless background extensions.
ExtensionHostSet background_hosts_;
// The BrowsingInstance shared by all extensions in this profile. This
// controls process grouping.
scoped_refptr<BrowsingInstance> browsing_instance_;
// A map of extension ID to the render_process_id that the extension lives in.
typedef std::map<std::string, int> ProcessIDMap;
ProcessIDMap process_ids_;
DISALLOW_COPY_AND_ASSIGN(ExtensionProcessManager);
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_PROCESS_MANAGER_H_
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