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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/renderer_host/pepper/pepper_gamepad_host.h" | 5 #include "content/browser/renderer_host/pepper/pepper_gamepad_host.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "content/browser/gamepad/gamepad_service.h" | 8 #include "content/browser/gamepad/gamepad_service.h" |
9 #include "content/public/browser/browser_ppapi_host.h" | 9 #include "content/public/browser/browser_ppapi_host.h" |
10 #include "ppapi/c/pp_errors.h" | 10 #include "ppapi/c/pp_errors.h" |
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30 PP_Instance instance, | 30 PP_Instance instance, |
31 PP_Resource resource) | 31 PP_Resource resource) |
32 : ResourceHost(host->GetPpapiHost(), instance, resource), | 32 : ResourceHost(host->GetPpapiHost(), instance, resource), |
33 browser_ppapi_host_(host), | 33 browser_ppapi_host_(host), |
34 gamepad_service_(gamepad_service), | 34 gamepad_service_(gamepad_service), |
35 is_started_(false), | 35 is_started_(false), |
36 weak_factory_(this) {} | 36 weak_factory_(this) {} |
37 | 37 |
38 PepperGamepadHost::~PepperGamepadHost() { | 38 PepperGamepadHost::~PepperGamepadHost() { |
39 if (is_started_) | 39 if (is_started_) |
40 gamepad_service_->RemoveConsumer(); | 40 gamepad_service_->RemoveConsumer(this); |
41 } | 41 } |
42 | 42 |
43 int32_t PepperGamepadHost::OnResourceMessageReceived( | 43 int32_t PepperGamepadHost::OnResourceMessageReceived( |
44 const IPC::Message& msg, | 44 const IPC::Message& msg, |
45 ppapi::host::HostMessageContext* context) { | 45 ppapi::host::HostMessageContext* context) { |
46 IPC_BEGIN_MESSAGE_MAP(PepperGamepadHost, msg) | 46 IPC_BEGIN_MESSAGE_MAP(PepperGamepadHost, msg) |
47 PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_Gamepad_RequestMemory, | 47 PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_Gamepad_RequestMemory, |
48 OnRequestMemory) | 48 OnRequestMemory) |
49 IPC_END_MESSAGE_MAP() | 49 IPC_END_MESSAGE_MAP() |
50 return PP_ERROR_FAILED; | 50 return PP_ERROR_FAILED; |
51 } | 51 } |
52 | 52 |
53 int32_t PepperGamepadHost::OnRequestMemory( | 53 int32_t PepperGamepadHost::OnRequestMemory( |
54 ppapi::host::HostMessageContext* context) { | 54 ppapi::host::HostMessageContext* context) { |
55 if (is_started_) | 55 if (is_started_) |
56 return PP_ERROR_FAILED; | 56 return PP_ERROR_FAILED; |
57 | 57 |
58 gamepad_service_->AddConsumer(); | 58 gamepad_service_->ConsumerBecameActive(this); |
59 is_started_ = true; | 59 is_started_ = true; |
60 | 60 |
61 // Don't send the shared memory back until the user has interacted with the | 61 // Don't send the shared memory back until the user has interacted with the |
62 // gamepad. This is to prevent fingerprinting and matches what the web | 62 // gamepad. This is to prevent fingerprinting and matches what the web |
63 // platform does. | 63 // platform does. |
64 gamepad_service_->RegisterForUserGesture( | 64 gamepad_service_->RegisterForUserGesture( |
65 base::Bind(&PepperGamepadHost::GotUserGesture, | 65 base::Bind(&PepperGamepadHost::GotUserGesture, |
66 weak_factory_.GetWeakPtr(), | 66 weak_factory_.GetWeakPtr(), |
67 context->MakeReplyMessageContext())); | 67 context->MakeReplyMessageContext())); |
68 return PP_OK_COMPLETIONPENDING; | 68 return PP_OK_COMPLETIONPENDING; |
69 } | 69 } |
70 | 70 |
71 void PepperGamepadHost::GotUserGesture( | 71 void PepperGamepadHost::GotUserGesture( |
72 const ppapi::host::ReplyMessageContext& context) { | 72 const ppapi::host::ReplyMessageContext& context) { |
73 base::SharedMemoryHandle handle = | 73 base::SharedMemoryHandle handle = |
74 gamepad_service_->GetSharedMemoryHandleForProcess( | 74 gamepad_service_->GetSharedMemoryHandleForProcess( |
75 browser_ppapi_host_->GetPluginProcessHandle()); | 75 browser_ppapi_host_->GetPluginProcessHandle()); |
76 | 76 |
77 context.params.AppendHandle(ppapi::proxy::SerializedHandle( | 77 context.params.AppendHandle(ppapi::proxy::SerializedHandle( |
78 handle, sizeof(ppapi::ContentGamepadHardwareBuffer))); | 78 handle, sizeof(ppapi::ContentGamepadHardwareBuffer))); |
79 host()->SendReply(context, PpapiPluginMsg_Gamepad_SendMemory()); | 79 host()->SendReply(context, PpapiPluginMsg_Gamepad_SendMemory()); |
80 } | 80 } |
81 | 81 |
82 } // namespace content | 82 } // namespace content |
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