content/renderer/geolocation_dispatcher.h

// Copyright (c) 2012 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 CONTENT_RENDERER_GEOLOCATION_DISPATCHER_H_
#define CONTENT_RENDERER_GEOLOCATION_DISPATCHER_H_

#include "base/memory/scoped_ptr.h"
#include "content/common/geolocation_service.mojom.h"
#include "content/common/permission_service.mojom.h"
#include "content/public/renderer/render_frame_observer.h"
#include "third_party/WebKit/public/web/WebGeolocationClient.h"
#include "third_party/WebKit/public/web/WebGeolocationController.h"

namespace blink {
class WebGeolocationController;
class WebGeolocationPermissionRequest;
class WebGeolocationPermissionRequestManager;
class WebGeolocationPosition;
}

namespace content {
struct Geoposition;

// GeolocationDispatcher is a delegate for Geolocation messages used by
// WebKit.
// It's the complement of GeolocationDispatcherHost.
class GeolocationDispatcher
    : public RenderFrameObserver,
      public blink::WebGeolocationClient {
 public:
  explicit GeolocationDispatcher(RenderFrame* render_frame);
  virtual ~GeolocationDispatcher();

 private:
  // WebGeolocationClient
  virtual void startUpdating();
  virtual void stopUpdating();
  virtual void setEnableHighAccuracy(bool enable_high_accuracy);
  virtual void setController(blink::WebGeolocationController* controller);
  virtual bool lastPosition(blink::WebGeolocationPosition& position);
  virtual void requestPermission(
      const blink::WebGeolocationPermissionRequest& permissionRequest);
  virtual void cancelPermissionRequest(
      const blink::WebGeolocationPermissionRequest& permissionRequest);

  void QueryNextPosition();
  void OnPositionUpdate(MojoGeopositionPtr geoposition);

  // Permission for using geolocation has been set.
  void OnPermissionSet(int permission_request_id, PermissionStatus status);

  scoped_ptr<blink::WebGeolocationController> controller_;

  scoped_ptr<blink::WebGeolocationPermissionRequestManager>
      pending_permissions_;
  GeolocationServicePtr geolocation_service_;
  bool enable_high_accuracy_;
  PermissionServicePtr permission_service_;
};

}  // namespace content

#endif  // CONTENT_RENDERER_GEOLOCATION_DISPATCHER_H_