Client-based geolocation support.

chrome/renderer/geolocation_dispatcher.h

+// Copyright (c) 2010 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 CHROME_RENDERER_GEOLOCATION_DISPATCHER_H_
+#define CHROME_RENDERER_GEOLOCATION_DISPATCHER_H_
+#pragma once
+
+#if defined(ENABLE_CLIENT_BASED_GEOLOCATION)
+
+#include "base/scoped_ptr.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebGeolocationClient.h"
+#include "third_party/WebKit/WebKit/chromium/public/WebGeolocationController.h"
+
+class RenderView;
+struct Geoposition;
+
+namespace WebKit {
+class WebGeolocationController;
+class WebGeolocationPermissionRequest;
+class WebGeolocationPermissionRequestManager;
+class WebGeolocationPosition;
+class WebSecurityOrigin;
+}
+
+namespace IPC {
+class Message;
+}
+
+// GeolocationDispatcher is a delegate for Geolocation messages used by
+// WebKit.
+// It's the complement of GeolocationDispatcherHost (owned by RenderViewHost).
+class GeolocationDispatcher : public WebKit::WebGeolocationClient {
+ public:
+  explicit GeolocationDispatcher(RenderView* render_view);
+  virtual ~GeolocationDispatcher();
+
+  // IPC
+  bool OnMessageReceived(const IPC::Message& message);
+
+  // WebGeolocationClient
+  virtual void geolocationDestroyed();
+  virtual void startUpdating();
+  virtual void stopUpdating();
+  virtual void setEnableHighAccuracy(bool enable_high_accuracy);
+  virtual void setController(WebKit::WebGeolocationController* controller);
+  virtual bool lastPosition(WebKit::WebGeolocationPosition& position);
+  virtual void requestPermission(
+      const WebKit::WebGeolocationPermissionRequest& permissionRequest);
+  virtual void cancelPermissionRequest(
+      const WebKit::WebGeolocationPermissionRequest& permissionRequest);
+
+ private:
+  // Permission for using geolocation has been set.
+  void OnGeolocationPermissionSet(int bridge_id, bool is_allowed);
+
+  // We have an updated geolocation position or error code.
+  void OnGeolocationPositionUpdated(const Geoposition& geoposition);
+
+  // GeolocationDispatcher is owned by RenderView. Back pointer for IPC.
+  RenderView* render_view_;
+
+  // The controller_ is valid for the lifetime of the underlying
+  // WebCore::GeolocationController. geolocationDestroyed() is
+  // invoked when the underlying object is destroyed.
+  scoped_ptr< WebKit::WebGeolocationController> controller_;
+
+  scoped_ptr<WebKit::WebGeolocationPermissionRequestManager>
+      pending_permissions_;
+  bool enable_high_accuracy_;
+  bool updating_;
+};
+#endif // ENABLE_CLIENT_BASED_GEOLOCATION
+
+#endif // CHROME_RENDERER_GEOLOCATION_DISPATCHER_H_