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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.
#include "chrome/browser/geolocation/geolocation_dispatcher_host.h"
#include "chrome/common/geoposition.h"
#include "chrome/browser/geolocation/geolocation_permission_context.h"
#include "chrome/browser/renderer_host/render_process_host.h"
#include "chrome/browser/renderer_host/render_view_host.h"
#include "chrome/browser/renderer_host/render_view_host_notification_task.h"
#include "chrome/browser/renderer_host/resource_message_filter.h"
#include "chrome/common/render_messages.h"
struct GeolocationDispatcherHost::GeolocationServiceRenderId {
int process_id;
int render_view_id;
GeolocationServiceRenderId(
int process_id, int render_view_id)
: process_id(process_id),
render_view_id(render_view_id) {
}
bool operator==(const GeolocationServiceRenderId& rhs) const {
return process_id == rhs.process_id &&
render_view_id == rhs.render_view_id;
}
bool operator<(const GeolocationServiceRenderId& rhs) const {
if (process_id == rhs.process_id)
return render_view_id < rhs.render_view_id;
return process_id < rhs.process_id;
}
};
GeolocationDispatcherHost::GeolocationDispatcherHost(
int resource_message_filter_process_id,
GeolocationPermissionContext* geolocation_permission_context)
: resource_message_filter_process_id_(resource_message_filter_process_id),
geolocation_permission_context_(geolocation_permission_context) {
// This is initialized by ResourceMessageFilter. Do not add any non-trivial
// initialization here, defer to OnRegisterBridge which is triggered whenever
// a javascript geolocation object is actually initialized.
}
GeolocationDispatcherHost::~GeolocationDispatcherHost() {
if (location_arbitrator_)
location_arbitrator_->RemoveObserver(this);
}
bool GeolocationDispatcherHost::OnMessageReceived(
const IPC::Message& msg, bool* msg_was_ok) {
*msg_was_ok = true;
bool handled = true;
IPC_BEGIN_MESSAGE_MAP_EX(GeolocationDispatcherHost, msg, *msg_was_ok)
IPC_MESSAGE_HANDLER(ViewHostMsg_Geolocation_RegisterDispatcher,
OnRegisterDispatcher)
IPC_MESSAGE_HANDLER(ViewHostMsg_Geolocation_UnregisterDispatcher,
OnUnregisterDispatcher)
IPC_MESSAGE_HANDLER(ViewHostMsg_Geolocation_CancelPermissionRequest,
OnCancelPermissionRequest)
IPC_MESSAGE_HANDLER(ViewHostMsg_Geolocation_RequestPermission,
OnRequestPermission)
IPC_MESSAGE_HANDLER(ViewHostMsg_Geolocation_StartUpdating,
OnStartUpdating)
IPC_MESSAGE_HANDLER(ViewHostMsg_Geolocation_StopUpdating,
OnStopUpdating)
IPC_MESSAGE_HANDLER(ViewHostMsg_Geolocation_Suspend,
OnSuspend)
IPC_MESSAGE_HANDLER(ViewHostMsg_Geolocation_Resume,
OnResume)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void GeolocationDispatcherHost::OnLocationUpdate(
const Geoposition& geoposition) {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
for (std::set<GeolocationServiceRenderId>::iterator geo =
geolocation_renderers_.begin();
geo != geolocation_renderers_.end();
++geo) {
IPC::Message* message;
if (geoposition.IsValidFix()) {
message = new ViewMsg_Geolocation_PositionUpdated(
geo->render_view_id, geoposition);
} else {
DCHECK(geoposition.IsInitialized());
message = new ViewMsg_Geolocation_Error(
geo->render_view_id, geoposition.error_code,
WideToUTF8(geoposition.error_message));
}
CallRenderViewHost(
geo->process_id, geo->render_view_id,
&RenderViewHost::Send, message);
}
}
void GeolocationDispatcherHost::OnRegisterDispatcher(int render_view_id) {
// TODO(bulach): is this the right way to get the RendererViewHost process id
// to be used by RenderViewHost::FromID?
RegisterDispatcher(
resource_message_filter_process_id_, render_view_id);
}
void GeolocationDispatcherHost::OnUnregisterDispatcher(int render_view_id) {
UnregisterDispatcher(
resource_message_filter_process_id_, render_view_id);
}
void GeolocationDispatcherHost::OnRequestPermission(
int render_view_id, int bridge_id, const GURL& requesting_frame) {
LOG(INFO) << "permission request";
geolocation_permission_context_->RequestGeolocationPermission(
resource_message_filter_process_id_, render_view_id, bridge_id,
requesting_frame);
}
void GeolocationDispatcherHost::OnCancelPermissionRequest(
int render_view_id, int bridge_id, const GURL& requesting_frame) {
LOG(INFO) << "cancel permission request";
geolocation_permission_context_->CancelGeolocationPermissionRequest(
resource_message_filter_process_id_, render_view_id, bridge_id,
requesting_frame);
}
void GeolocationDispatcherHost::OnStartUpdating(
int render_view_id, int bridge_id, const GURL& requesting_frame,
bool enable_high_accuracy) {
// WebKit sends the startupdating request before checking permissions, to
// optimize the no-location-available case and reduce latency in the success
// case (location lookup happens in parallel with the permission request).
LOG(INFO) << "start updating" << render_view_id;
location_arbitrator_ =
geolocation_permission_context_->StartUpdatingRequested(
resource_message_filter_process_id_, render_view_id, bridge_id,
requesting_frame);
DCHECK(location_arbitrator_);
location_arbitrator_->AddObserver(
this, GeolocationArbitrator::UpdateOptions(enable_high_accuracy));
}
void GeolocationDispatcherHost::OnStopUpdating(
int render_view_id, int bridge_id) {
// TODO(joth): Balance calls to RemoveObserver here with AddObserver above.
// http://crbug.com/40103
LOG(INFO) << "stop updating" << render_view_id;
geolocation_permission_context_->StopUpdatingRequested(
resource_message_filter_process_id_, render_view_id, bridge_id);
}
void GeolocationDispatcherHost::OnSuspend(
int render_view_id, int bridge_id) {
LOG(INFO) << "suspend" << render_view_id;
// TODO(bulach): connect this with GeolocationArbitrator.
}
void GeolocationDispatcherHost::OnResume(
int render_view_id, int bridge_id) {
LOG(INFO) << "resume" << render_view_id;
// TODO(bulach): connect this with GeolocationArbitrator.
}
void GeolocationDispatcherHost::RegisterDispatcher(
int process_id, int render_view_id) {
if (!ChromeThread::CurrentlyOn(ChromeThread::IO)) {
ChromeThread::PostTask(
ChromeThread::IO, FROM_HERE,
NewRunnableMethod(
this, &GeolocationDispatcherHost::RegisterDispatcher,
process_id, render_view_id));
return;
}
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
GeolocationServiceRenderId geolocation_render_id(
process_id, render_view_id);
std::set<GeolocationServiceRenderId>::const_iterator existing =
geolocation_renderers_.find(geolocation_render_id);
DCHECK(existing == geolocation_renderers_.end());
geolocation_renderers_.insert(geolocation_render_id);
}
void GeolocationDispatcherHost::UnregisterDispatcher(
int process_id, int render_view_id) {
if (!ChromeThread::CurrentlyOn(ChromeThread::IO)) {
ChromeThread::PostTask(
ChromeThread::IO, FROM_HERE,
NewRunnableMethod(
this, &GeolocationDispatcherHost::UnregisterDispatcher,
process_id, render_view_id));
return;
}
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
GeolocationServiceRenderId geolocation_render_id(
process_id, render_view_id);
std::set<GeolocationServiceRenderId>::iterator existing =
geolocation_renderers_.find(geolocation_render_id);
DCHECK(existing != geolocation_renderers_.end());
geolocation_renderers_.erase(existing);
}
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