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// 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_BROWSER_GEOLOCATION_GEOLOCATION_DISPATCHER_HOST_H_
#define CHROME_BROWSER_GEOLOCATION_GEOLOCATION_DISPATCHER_HOST_H_
#include <set>
#include "base/basictypes.h"
#include "base/ref_counted.h"
#include "ipc/ipc_message.h"
class GeolocationPermissionContext;
struct Geoposition;
class GURL;
class ResourceMessageFilter;
// GeolocationDispatcherHost is a delegate for Geolocation messages used by
// ResourceMessageFilter.
// It's the complement of GeolocationDispatcher (owned by RenderView).
class GeolocationDispatcherHost
: public base::RefCountedThreadSafe<GeolocationDispatcherHost> {
public:
GeolocationDispatcherHost(
int resource_message_filter_process_id,
GeolocationPermissionContext* geolocation_permission_context);
// Called to possibly handle the incoming IPC message. Returns true if
// handled. Called in the browser process.
bool OnMessageReceived(const IPC::Message& msg, bool* msg_was_ok);
// Tells the render view that a new geolocation position is available.
void NotifyPositionUpdated(const Geoposition& geoposition);
private:
friend class base::RefCountedThreadSafe<GeolocationDispatcherHost>;
~GeolocationDispatcherHost();
void OnRegisterDispatcher(int route_id);
void OnUnregisterDispatcher(int route_id);
void OnRequestPermission(int route_id, int bridge_id, const GURL& origin);
void OnStartUpdating(int route_id, int bridge_id, bool high_accuracy);
void OnStopUpdating(int route_id, int bridge_id);
void OnSuspend(int route_id, int bridge_id);
void OnResume(int route_id, int bridge_id);
// Registers the bridge created in the renderer side. They'll delegate to the
// UI thread if not already in there.
void RegisterDispatcher(int process_id, int route_id);
void UnregisterDispatcher(int process_id, int route_id);
int resource_message_filter_process_id_;
scoped_refptr<GeolocationPermissionContext> geolocation_permission_context_;
struct GeolocationServiceRenderId {
int process_id;
int route_id;
GeolocationServiceRenderId(int process_id, int route_id)
: process_id(process_id), route_id(route_id) {
}
bool operator==(const GeolocationServiceRenderId& rhs) const {
return process_id == rhs.route_id &&
route_id == rhs.route_id;
}
bool operator<(const GeolocationServiceRenderId& rhs) const {
return process_id < rhs.route_id &&
route_id < rhs.route_id;
}
};
// Only used on the UI thread.
std::set<GeolocationServiceRenderId> geolocation_renderers_;
DISALLOW_COPY_AND_ASSIGN(GeolocationDispatcherHost);
};
#endif // CHROME_BROWSER_GEOLOCATION_GEOLOCATION_DISPATCHER_HOST_H_
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