1// Copyright (c) 2011 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#include "content/browser/renderer_host/gamepad_browser_message_filter.h"
6
7#include "content/browser/gamepad/gamepad_service.h"
8#include "content/common/gamepad_messages.h"
9
10namespace content {
11
12GamepadBrowserMessageFilter::GamepadBrowserMessageFilter()
13    : BrowserMessageFilter(GamepadMsgStart),
14      is_started_(false) {
15}
16
17GamepadBrowserMessageFilter::~GamepadBrowserMessageFilter() {
18  DCHECK_CURRENTLY_ON(BrowserThread::IO);
19  if (is_started_)
20    GamepadService::GetInstance()->RemoveConsumer(this);
21}
22
23bool GamepadBrowserMessageFilter::OnMessageReceived(
24    const IPC::Message& message) {
25  bool handled = true;
26  IPC_BEGIN_MESSAGE_MAP(GamepadBrowserMessageFilter, message)
27    IPC_MESSAGE_HANDLER(GamepadHostMsg_StartPolling, OnGamepadStartPolling)
28    IPC_MESSAGE_HANDLER(GamepadHostMsg_StopPolling, OnGamepadStopPolling)
29    IPC_MESSAGE_UNHANDLED(handled = false)
30  IPC_END_MESSAGE_MAP()
31  return handled;
32}
33
34void GamepadBrowserMessageFilter::OnGamepadConnected(
35    unsigned index,
36    const blink::WebGamepad& gamepad) {
37  Send(new GamepadMsg_GamepadConnected(index, gamepad));
38}
39
40void GamepadBrowserMessageFilter::OnGamepadDisconnected(
41    unsigned index,
42    const blink::WebGamepad& gamepad) {
43  Send(new GamepadMsg_GamepadDisconnected(index, gamepad));
44}
45
46void GamepadBrowserMessageFilter::OnGamepadStartPolling(
47    base::SharedMemoryHandle* renderer_handle) {
48  GamepadService* service = GamepadService::GetInstance();
49  CHECK(!is_started_);
50  is_started_ = true;
51  service->ConsumerBecameActive(this);
52  *renderer_handle = service->GetSharedMemoryHandleForProcess(PeerHandle());
53}
54
55void GamepadBrowserMessageFilter::OnGamepadStopPolling() {
56  CHECK(is_started_);
57  is_started_ = false;
58  GamepadService::GetInstance()->ConsumerBecameInactive(this);
59}
60
61}  // namespace content
62