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_view_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 class RenderViewImpl;
  22 struct Geoposition;
  23
  24 // GeolocationDispatcher is a delegate for Geolocation messages used by
  25 // WebKit.
  26 // It's the complement of GeolocationDispatcherHost (owned by RenderViewHost).
  27 class GeolocationDispatcher : public RenderViewObserver,
  28                               public blink::WebGeolocationClient {
  29  public:
  30   explicit GeolocationDispatcher(RenderViewImpl* render_view);
  31   virtual ~GeolocationDispatcher();
  32
  33  private:
  34   // RenderView::Observer implementation.
  35   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
  36
  37   // WebGeolocationClient
  38   virtual void geolocationDestroyed();
  39   virtual void startUpdating();
  40   virtual void stopUpdating();
  41   virtual void setEnableHighAccuracy(bool enable_high_accuracy);
  42   virtual void setController(blink::WebGeolocationController* controller);
  43   virtual bool lastPosition(blink::WebGeolocationPosition& position);
  44   virtual void requestPermission(
  45       const blink::WebGeolocationPermissionRequest& permissionRequest);
  46   virtual void cancelPermissionRequest(
  47       const blink::WebGeolocationPermissionRequest& permissionRequest);
  48
  49   // Permission for using geolocation has been set.
  50   void OnPermissionSet(int bridge_id, bool is_allowed);
  51
  52   // We have an updated geolocation position or error code.
  53   void OnPositionUpdated(const content::Geoposition& geoposition);
  54
  55   // The controller_ is valid for the lifetime of the underlying
  56   // WebCore::GeolocationController. geolocationDestroyed() is
  57   // invoked when the underlying object is destroyed.
  58   scoped_ptr< blink::WebGeolocationController> controller_;
  59
  60   scoped_ptr<blink::WebGeolocationPermissionRequestManager>
  61       pending_permissions_;
  62   bool enable_high_accuracy_;
  63   bool updating_;
  64 };
  65
  66 }  // namespace content
  67
  68 #endif  // CONTENT_RENDERER_GEOLOCATION_DISPATCHER_H_