content/browser/permissions/permission_service_impl.h

   1 // Copyright 2014 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 CONTENT_BROWSER_PERMISSIONS_PERMISSION_SERVICE_IMPL_H_
   6 #define CONTENT_BROWSER_PERMISSIONS_PERMISSION_SERVICE_IMPL_H_
   7
   8 #include "base/id_map.h"
   9 #include "base/macros.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "content/browser/permissions/permission_service_context.h"
  12 #include "content/common/permission_service.mojom.h"
  13 #include "content/public/browser/permission_type.h"
  14
  15 namespace content {
  16
  17 // Implements the PermissionService Mojo interface.
  18 // This service can be created from a RenderFrameHost or a RenderProcessHost.
  19 // It is owned by a PermissionServiceContext.
  20 // It receives at PermissionServiceContext instance when created which allows it
  21 // to have some information about the current context. That enables the service
  22 // to know whether it can show UI and have knowledge of the associated
  23 // WebContents for example.
  24 class PermissionServiceImpl : public mojo::InterfaceImpl<PermissionService> {
  25  public:
  26   virtual ~PermissionServiceImpl();
  27
  28   // Clear pending permissions associated with a given frame and request the
  29   // browser to cancel the permission requests.
  30   void CancelPendingRequests();
  31
  32  protected:
  33   friend PermissionServiceContext;
  34
  35   PermissionServiceImpl(PermissionServiceContext* context);
  36
  37  private:
  38   struct PendingRequest {
  39     PendingRequest(PermissionType permission, const GURL& origin);
  40     PermissionType permission;
  41     GURL origin;
  42   };
  43   typedef IDMap<PendingRequest, IDMapOwnPointer> RequestsMap;
  44
  45   // PermissionService.
  46   void HasPermission(
  47       PermissionName permission,
  48       const mojo::String& origin,
  49       const mojo::Callback<void(PermissionStatus)>& callback) override;
  50   void RequestPermission(
  51       PermissionName permission,
  52       const mojo::String& origin,
  53       const mojo::Callback<void(PermissionStatus)>& callback) override;
  54
  55   // mojo::InterfaceImpl.
  56   void OnConnectionError() override;
  57
  58   void OnRequestPermissionResponse(
  59     const mojo::Callback<void(PermissionStatus)>& callback,
  60     int request_id,
  61     bool allowed);
  62
  63   RequestsMap pending_requests_;
  64   // context_ owns |this|.
  65   PermissionServiceContext* context_;
  66   base::WeakPtrFactory<PermissionServiceImpl> weak_factory_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(PermissionServiceImpl);
  69 };
  70
  71 }  // namespace content
  72
  73 #endif  // CONTENT_BROWSER_PERMISSIONS_PERMISSION_SERVICE_IMPL_H_