content/renderer/geolocation_dispatcher.h

   1 // Copyright (c) 2012 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_RENDERER_GEOLOCATION_DISPATCHER_H_
   6 #define CONTENT_RENDERER_GEOLOCATION_DISPATCHER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "content/public/renderer/render_frame_observer.h"
  10 #include "third_party/WebKit/public/web/WebGeolocationClient.h"
  11 #include "third_party/WebKit/public/web/WebGeolocationController.h"
  12
  13 namespace blink {
  14 class WebGeolocationController;
  15 class WebGeolocationPermissionRequest;
  16 class WebGeolocationPermissionRequestManager;
  17 class WebGeolocationPosition;
  18 }
  19
  20 namespace content {
  21 struct Geoposition;
  22
  23 // GeolocationDispatcher is a delegate for Geolocation messages used by
  24 // WebKit.
  25 // It's the complement of GeolocationDispatcherHost.
  26 class GeolocationDispatcher : public RenderFrameObserver,
  27                               public blink::WebGeolocationClient {
  28  public:
  29   explicit GeolocationDispatcher(RenderFrame* render_frame);
  30   virtual ~GeolocationDispatcher();
  31
  32  private:
  33   // RenderFrame::Observer implementation.
  34   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
  35
  36   // WebGeolocationClient
  37   virtual void geolocationDestroyed();
  38   virtual void startUpdating();
  39   virtual void stopUpdating();
  40   virtual void setEnableHighAccuracy(bool enable_high_accuracy);
  41   virtual void setController(blink::WebGeolocationController* controller);
  42   virtual bool lastPosition(blink::WebGeolocationPosition& position);
  43   virtual void requestPermission(
  44       const blink::WebGeolocationPermissionRequest& permissionRequest);
  45   virtual void cancelPermissionRequest(
  46       const blink::WebGeolocationPermissionRequest& permissionRequest);
  47
  48   // Permission for using geolocation has been set.
  49   void OnPermissionSet(int bridge_id, bool is_allowed);
  50
  51   // We have an updated geolocation position or error code.
  52   void OnPositionUpdated(const content::Geoposition& geoposition);
  53
  54   // The controller_ is valid for the lifetime of the underlying
  55   // WebCore::GeolocationController. geolocationDestroyed() is
  56   // invoked when the underlying object is destroyed.
  57   scoped_ptr<blink::WebGeolocationController> controller_;
  58
  59   scoped_ptr<blink::WebGeolocationPermissionRequestManager>
  60       pending_permissions_;
  61   bool enable_high_accuracy_;
  62   bool updating_;
  63 };
  64
  65 }  // namespace content
  66
  67 #endif  // CONTENT_RENDERER_GEOLOCATION_DISPATCHER_H_