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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/renderer/device_orientation_dispatcher.h"
#include "chrome/common/render_messages_params.h"
#include "chrome/renderer/render_view.h"
#include "third_party/WebKit/WebKit/chromium/public/WebDeviceOrientation.h"
#include "third_party/WebKit/WebKit/chromium/public/WebDeviceOrientationController.h"
DeviceOrientationDispatcher::DeviceOrientationDispatcher(
RenderView* render_view)
: render_view_(render_view),
controller_(NULL),
started_(false) {
}
DeviceOrientationDispatcher::~DeviceOrientationDispatcher() {
if (started_)
stopUpdating();
}
bool DeviceOrientationDispatcher::OnMessageReceived(const IPC::Message& msg) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(DeviceOrientationDispatcher, msg)
IPC_MESSAGE_HANDLER(ViewMsg_DeviceOrientationUpdated,
OnDeviceOrientationUpdated)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void DeviceOrientationDispatcher::setController(
WebKit::WebDeviceOrientationController* controller) {
controller_.reset(controller);
}
void DeviceOrientationDispatcher::startUpdating() {
render_view_->Send(new ViewHostMsg_DeviceOrientation_StartUpdating(
render_view_->routing_id()));
started_ = true;
}
void DeviceOrientationDispatcher::stopUpdating() {
render_view_->Send(new ViewHostMsg_DeviceOrientation_StopUpdating(
render_view_->routing_id()));
started_ = false;
}
WebKit::WebDeviceOrientation DeviceOrientationDispatcher::lastOrientation()
const {
if (!last_update_.get())
return WebKit::WebDeviceOrientation::nullOrientation();
return WebKit::WebDeviceOrientation(last_update_->can_provide_alpha,
last_update_->alpha,
last_update_->can_provide_beta,
last_update_->beta,
last_update_->can_provide_gamma,
last_update_->gamma);
}
void DeviceOrientationDispatcher::OnDeviceOrientationUpdated(
const ViewMsg_DeviceOrientationUpdated_Params& p) {
last_update_.reset(new ViewMsg_DeviceOrientationUpdated_Params(p));
WebKit::WebDeviceOrientation orientation(p.can_provide_alpha, p.alpha,
p.can_provide_beta, p.beta,
p.can_provide_gamma, p.gamma);
controller_->didChangeDeviceOrientation(orientation);
}
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