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.
5 #include "content/browser/renderer_host/gamepad_browser_message_filter.h"
7 #include "content/browser/gamepad/gamepad_service.h"
8 #include "content/common/gamepad_messages.h"
12 GamepadBrowserMessageFilter::GamepadBrowserMessageFilter()
13 : is_started_(false) {
16 GamepadBrowserMessageFilter::~GamepadBrowserMessageFilter() {
17 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
19 GamepadService::GetInstance()->RemoveConsumer();
22 bool GamepadBrowserMessageFilter::OnMessageReceived(
23 const IPC::Message& message,
24 bool* message_was_ok) {
26 IPC_BEGIN_MESSAGE_MAP_EX(GamepadBrowserMessageFilter,
29 IPC_MESSAGE_HANDLER(GamepadHostMsg_StartPolling, OnGamepadStartPolling)
30 IPC_MESSAGE_HANDLER(GamepadHostMsg_StopPolling, OnGamepadStopPolling)
31 IPC_MESSAGE_UNHANDLED(handled = false)
32 IPC_END_MESSAGE_MAP_EX()
36 void GamepadBrowserMessageFilter::OnGamepadStartPolling(
37 base::SharedMemoryHandle* renderer_handle) {
38 GamepadService* service = GamepadService::GetInstance();
41 service->AddConsumer();
42 *renderer_handle = service->GetSharedMemoryHandleForProcess(PeerHandle());
44 // Currently we only expect the renderer to tell us once to start.
49 void GamepadBrowserMessageFilter::OnGamepadStopPolling() {
50 // TODO(scottmg): Probably get rid of this message. We can't trust it will
51 // arrive anyway if the renderer crashes, etc.
54 GamepadService::GetInstance()->RemoveConsumer();
60 } // namespace content