root/apps/shell/browser/shell_extensions_browser_client.cc

DEFINITIONS

1. RegisterPrefs
2. OnRenderViewCreatedForBackgroundPage
3. GetJavaScriptDialogManager
4. CreateTab
5. ProcessMediaAccessRequest
6. OnExtensionHostCreated
7. api_client_
8. IsShuttingDown
9. AreExtensionsDisabled
10. IsValidContext
11. IsSameContext
12. HasOffTheRecordContext
13. GetOffTheRecordContext
14. GetOriginalContext
15. IsGuestSession
16. IsExtensionIncognitoEnabled
17. CanExtensionCrossIncognito
18. GetPrefServiceForContext
19. GetEarlyExtensionPrefsObservers
20. DeferLoadingBackgroundHosts
21. IsBackgroundPageAllowed
22. CreateExtensionHostDelegate
23. DidVersionUpdate
24. CreateAppSorting
25. IsRunningInForcedAppMode
26. GetApiActivityMonitor
27. GetExtensionSystemFactory
28. RegisterExtensionFunctions

// Copyright 2013 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 "apps/shell/browser/shell_extensions_browser_client.h"

#include "apps/common/api/generated_api.h"
#include "apps/shell/browser/shell_app_sorting.h"
#include "apps/shell/browser/shell_app_window_api.h"
#include "apps/shell/browser/shell_extension_system_factory.h"
#include "apps/shell/browser/shell_extension_web_contents_observer.h"
#include "base/command_line.h"
#include "base/prefs/pref_service.h"
#include "base/prefs/pref_service_factory.h"
#include "base/prefs/testing_pref_store.h"
#include "chrome/common/extensions/api/generated_api.h"
#include "components/user_prefs/pref_registry_syncable.h"
#include "components/user_prefs/user_prefs.h"
#include "extensions/browser/api/extensions_api_client.h"
#include "extensions/browser/app_sorting.h"
#include "extensions/browser/extension_function_registry.h"
#include "extensions/browser/extension_host_delegate.h"
#include "extensions/browser/extension_prefs.h"
#include "extensions/common/api/generated_api.h"

using content::BrowserContext;

namespace extensions {
namespace {

// See chrome::RegisterProfilePrefs() in chrome/browser/prefs/browser_prefs.cc
void RegisterPrefs(user_prefs::PrefRegistrySyncable* registry) {
  ExtensionPrefs::RegisterProfilePrefs(registry);
}

// A minimal ExtensionHostDelegate.
class ShellExtensionHostDelegate : public ExtensionHostDelegate {
 public:
  ShellExtensionHostDelegate() {}
  virtual ~ShellExtensionHostDelegate() {}

  // ExtensionHostDelegate implementation.
  virtual void OnExtensionHostCreated(content::WebContents* web_contents)
      OVERRIDE;

  virtual void OnRenderViewCreatedForBackgroundPage(ExtensionHost* host)
      OVERRIDE {}

  virtual content::JavaScriptDialogManager* GetJavaScriptDialogManager()
      OVERRIDE {
    // TODO(jamescook): Create a JavaScriptDialogManager or reuse the one from
    // content_shell.
    NOTREACHED();
    return NULL;
  }

  virtual void CreateTab(content::WebContents* web_contents,
                         const std::string& extension_id,
                         WindowOpenDisposition disposition,
                         const gfx::Rect& initial_pos,
                         bool user_gesture) OVERRIDE {
    // TODO(jamescook): Should app_shell support opening popup windows?
    NOTREACHED();
  }

  virtual void ProcessMediaAccessRequest(
      content::WebContents* web_contents,
      const content::MediaStreamRequest& request,
      const content::MediaResponseCallback& callback,
      const Extension* extension) OVERRIDE {
    // app_shell does not support media capture.
    NOTREACHED();
  }
};

void ShellExtensionHostDelegate::OnExtensionHostCreated(
    content::WebContents* web_contents) {
  ShellExtensionWebContentsObserver::CreateForWebContents(web_contents);
}

}  // namespace

ShellExtensionsBrowserClient::ShellExtensionsBrowserClient(
    BrowserContext* context)
    : browser_context_(context), api_client_(new ExtensionsAPIClient) {
  // Set up the preferences service.
  base::PrefServiceFactory factory;
  factory.set_user_prefs(new TestingPrefStore);
  factory.set_extension_prefs(new TestingPrefStore);
  // app_shell should not require syncable preferences, but for now we need to
  // recycle some of the RegisterProfilePrefs() code in Chrome.
  // TODO(jamescook): Convert this to PrefRegistrySimple.
  user_prefs::PrefRegistrySyncable* pref_registry =
      new user_prefs::PrefRegistrySyncable;
  // Prefs should be registered before the PrefService is created.
  RegisterPrefs(pref_registry);
  prefs_ = factory.Create(pref_registry).Pass();
  user_prefs::UserPrefs::Set(browser_context_, prefs_.get());
}

ShellExtensionsBrowserClient::~ShellExtensionsBrowserClient() {}

bool ShellExtensionsBrowserClient::IsShuttingDown() {
  return false;
}

bool ShellExtensionsBrowserClient::AreExtensionsDisabled(
    const base::CommandLine& command_line,
    BrowserContext* context) {
  return false;
}

bool ShellExtensionsBrowserClient::IsValidContext(BrowserContext* context) {
  return context == browser_context_;
}

bool ShellExtensionsBrowserClient::IsSameContext(BrowserContext* first,
                                                 BrowserContext* second) {
  return first == second;
}

bool ShellExtensionsBrowserClient::HasOffTheRecordContext(
    BrowserContext* context) {
  return false;
}

BrowserContext* ShellExtensionsBrowserClient::GetOffTheRecordContext(
    BrowserContext* context) {
  // app_shell only supports a single context.
  return NULL;
}

BrowserContext* ShellExtensionsBrowserClient::GetOriginalContext(
    BrowserContext* context) {
  return context;
}

bool ShellExtensionsBrowserClient::IsGuestSession(
    BrowserContext* context) const {
  return false;
}

bool ShellExtensionsBrowserClient::IsExtensionIncognitoEnabled(
    const std::string& extension_id,
    content::BrowserContext* context) const {
  return false;
}

bool ShellExtensionsBrowserClient::CanExtensionCrossIncognito(
    const extensions::Extension* extension,
    content::BrowserContext* context) const {
  return false;
}

PrefService* ShellExtensionsBrowserClient::GetPrefServiceForContext(
    BrowserContext* context) {
  return prefs_.get();
}

void ShellExtensionsBrowserClient::GetEarlyExtensionPrefsObservers(
    content::BrowserContext* context,
    std::vector<ExtensionPrefsObserver*>* observers) const {}

bool ShellExtensionsBrowserClient::DeferLoadingBackgroundHosts(
    BrowserContext* context) const {
  return false;
}

bool ShellExtensionsBrowserClient::IsBackgroundPageAllowed(
    BrowserContext* context) const {
  return true;
}

scoped_ptr<ExtensionHostDelegate>
ShellExtensionsBrowserClient::CreateExtensionHostDelegate() {
  return scoped_ptr<ExtensionHostDelegate>(new ShellExtensionHostDelegate);
}

bool ShellExtensionsBrowserClient::DidVersionUpdate(BrowserContext* context) {
  // TODO(jamescook): We might want to tell extensions when app_shell updates.
  return false;
}

scoped_ptr<AppSorting> ShellExtensionsBrowserClient::CreateAppSorting() {
  return scoped_ptr<AppSorting>(new apps::ShellAppSorting);
}

bool ShellExtensionsBrowserClient::IsRunningInForcedAppMode() {
  return false;
}

ApiActivityMonitor* ShellExtensionsBrowserClient::GetApiActivityMonitor(
    BrowserContext* context) {
  // app_shell doesn't monitor API function calls or events.
  return NULL;
}

ExtensionSystemProvider*
ShellExtensionsBrowserClient::GetExtensionSystemFactory() {
  return ShellExtensionSystemFactory::GetInstance();
}

void ShellExtensionsBrowserClient::RegisterExtensionFunctions(
    ExtensionFunctionRegistry* registry) const {
  // Generated APIs from lower-level modules.
  extensions::core_api::GeneratedFunctionRegistry::RegisterAll(registry);
  apps::api::GeneratedFunctionRegistry::RegisterAll(registry);

  // TODO(rockot): Remove dependency on src/chrome once we have some core APIs
  // moved out. Also clean up the comment below. See http://crbug.com/349042.
  extensions::api::GeneratedFunctionRegistry::RegisterAll(registry);

  // Register our simplified implementation for chrome.app.window.create().
  // By registering it after extensions::api::GeneratedFunctionRegistry above
  // we override the Chrome version of this function.
  // TODO(jamescook): Remove the switch when the simple window good enough to
  // use by default.
  const std::string kNewAppWindow = "new-app-window";
  if (base::CommandLine::ForCurrentProcess()->HasSwitch(kNewAppWindow))
    registry->RegisterFunction<ShellAppWindowCreateFunction>();
}

}  // namespace extensions