components/guest_view/browser/guest_view_manager_delegate.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_GUEST_VIEW_BROWSER_GUEST_VIEW_MANAGER_DELEGATE_H_
   6 #define COMPONENTS_GUEST_VIEW_BROWSER_GUEST_VIEW_MANAGER_DELEGATE_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/values.h"
  12
  13 namespace base {
  14 class DictionaryValue;
  15 }  // namespace base
  16
  17 namespace guest_view {
  18
  19 class GuestViewBase;
  20
  21 // A GuestViewManagerDelegate interface allows GuestViewManager to delegate
  22 // responsibilities to other modules in Chromium. Different builds of Chromium
  23 // may use different GuestViewManagerDelegate implementations. For example,
  24 // mobile builds of Chromium do not include an extensions module and so
  25 // permission checks would be different, and IsOwnedByExtension would always
  26 // return false.
  27 class GuestViewManagerDelegate {
  28  public:
  29   GuestViewManagerDelegate();
  30   virtual ~GuestViewManagerDelegate();
  31
  32   // Dispatches the event with |name| with the provided |args| to the embedder
  33   // of the given |guest| with |instance_id| for routing.
  34   virtual void DispatchEvent(const std::string& event_name,
  35                              scoped_ptr<base::DictionaryValue> args,
  36                              GuestViewBase* guest,
  37                              int instance_id) {}
  38
  39   // Indicates whether the |guest| can be used within the context of where it
  40   // was created.
  41   virtual bool IsGuestAvailableToContext(GuestViewBase* guest);
  42
  43   // Indicates whether the |guest| is owned by an extension or Chrome App.
  44   virtual bool IsOwnedByExtension(GuestViewBase* guest);
  45
  46   // Registers additional GuestView types the delegator (GuestViewManger) can
  47   // create.
  48   virtual void RegisterAdditionalGuestViewTypes() {}
  49 };
  50
  51 }  // namespace guest_view
  52
  53 #endif  // COMPONENTS_GUEST_VIEW_BROWSER_GUEST_VIEW_MANAGER_DELEGATE_H_